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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.199 by root, Mon Jan 29 14:46:01 2007 UTC vs.
Revision 1.288 by root, Mon Jun 25 07:40:53 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.5 ();	15	use Coro 3.61 ();
		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;
26		34
		35	# configure various modules to our taste
		36	#
		37	$Storable::canonical = 1; # reduce rsync transfers
		38	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		39	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		40
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	41	$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		42
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
33		45
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		47
		48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		49
36	our %COMMAND = ();	50	our %COMMAND = ();
37	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
38		52
39	our @EXTS = (); # list of extension package names	53	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	56	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	57	our %EXT_MAP = (); # pluggable maps
43		58
		59	our $RELOAD; # number of reloads so far
44	our @EVENT;	60	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		61
47	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	75	our $TICK_WATCHER;
49	our $AIO_POLL_WATCHER;	76	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	78	our $NEXT_TICK;
52	our $NOW;	79	our $NOW;
		80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $DB_ENV;
53		84
54	our %CFG;	85	our %CFG;
55		86
56	our $UPTIME; $UPTIME ||= time;	87	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	88	our $RUNTIME;
58		89
59	our %PLAYER; # all users	90	our %PLAYER; # all users
60	our %MAP; # all maps	91	our %MAP; # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	92	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		93
67	# used to convert map paths into valid unix filenames by replacing / by ∕	94	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		96
		97	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		98	our $LOADAVG; # same thing, but with alpha-smoothing
		99	our $tick_start; # for load detecting purposes
		100
70	binmode STDOUT;	101	binmode STDOUT;
71	binmode STDERR;	102	binmode STDERR;
72		103
73	# read virtual server time, if available	104	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
75	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
76	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
77	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
78	}	109	}
79		110
80	mkdir cf::localdir;	111	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		113
86	our $EMERGENCY_POSITION;	114	our $EMERGENCY_POSITION;
87		115
88	sub cf::map::normalise;	116	sub cf::map::normalise;
89		117
…		…
100	=item $cf::RUNTIME	128	=item $cf::RUNTIME
101		129
102	The time this server has run, starts at 0 and is increased by $cf::TICK on	130	The time this server has run, starts at 0 and is increased by $cf::TICK on
103	every server tick.	131	every server tick.
104		132
105	=item $cf::LIBDIR	133	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		134	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		135	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
106		136
107	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
108	be found. It will be added to C<@INC> automatically.	138	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		139	unique-items directory, player file directory, random maps directory and
		140	database environment.
109		141
110	=item $cf::NOW	142	=item $cf::NOW
111		143
112	The time of the last (current) server tick.	144	The time of the last (current) server tick.
113		145
114	=item $cf::TICK	146	=item $cf::TICK
115		147
116	The interval between server ticks, in seconds.	148	The interval between server ticks, in seconds.
		149
		150	=item $cf::LOADAVG
		151
		152	The current CPU load on the server (alpha-smoothed), as a value between 0
		153	(none) and 1 (overloaded), indicating how much time is spent on processing
		154	objects per tick. Healthy values are < 0.5.
		155
		156	=item $cf::LOAD
		157
		158	The raw value load value from the last tick.
117		159
118	=item %cf::CFG	160	=item %cf::CFG
119		161
120	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
121	from wherever your confdir points to.	163	from wherever your confdir points to.
122		164
123	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	165	=item cf::wait_for_tick, cf::wait_for_tick_begin
124		166
125	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	167	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
126	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	168	returns directly I<after> the tick processing (and consequently, can only wake one process
127	processing has been done. Call C<< ->wait >> on them to maximise the	169	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
128	window of cpu time available, or simply to synchronise to the server tick.
129		170
130	=back	171	=back
131		172
132	=cut	173	=cut
133		174
134	BEGIN {	175	BEGIN {
135	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
136	my $msg = join "", @_;	177	my $msg = join "", @_;
137	utf8::encode $msg;
138		178
139	$msg .= "\n"	179	$msg .= "\n"
140	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
141		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
142	LOG llevError, $msg;	185	LOG llevError, $msg;
143	};	186	};
144	}	187	}
145		188
146	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
147	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
148	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
149	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
150	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	193	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		194	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
151	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	195	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
152		196
153	# we bless all objects into (empty) derived classes to force a method lookup	197	# we bless all objects into (empty) derived classes to force a method lookup
154	# within the Safe compartment.	198	# within the Safe compartment.
155	for my $pkg (qw(	199	for my $pkg (qw(
156	cf::global cf::attachable	200	cf::global cf::attachable
…		…
164	}	208	}
165		209
166	$Event::DIED = sub {	210	$Event::DIED = sub {
167	warn "error in event callback: @_";	211	warn "error in event callback: @_";
168	};	212	};
		213
		214	#############################################################################
169		215
170	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
171		217
172	=over 4	218	=over 4
173		219
…		…
192	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	238	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
193	$d	239	$d
194	} || "[unable to dump $_[0]: '$@']";	240	} || "[unable to dump $_[0]: '$@']";
195	}	241	}
196		242
197	use JSON::Syck (); # TODO# replace by JSON::PC once working
198
199	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
200		244
201	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
202		246
203	=cut
204
205	sub from_json($) {
206	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
207	JSON::Syck::Load $_[0]
208	}
209
210	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
211		248
212	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
213		250
214	=cut	251	=cut
215		252
216	sub to_json($) {	253	our $json_coder = JSON::XS->new->convert_blessed->utf8->max_size (1e6); # accept ~1mb max
217	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	254
218	JSON::Syck::Dump $_[0]	255	sub to_json ($) { $json_coder->encode ($_[0]) }
219	}	256	sub from_json ($) { $json_coder->decode ($_[0]) }
220		257
221	=item cf::lock_wait $string	258	=item cf::lock_wait $string
222		259
223	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
224		261
…		…
230	returned.	267	returned.
231		268
232	Lock names should begin with a unique identifier (for example, cf::map::find	269	Lock names should begin with a unique identifier (for example, cf::map::find
233	uses map_find and cf::map::load uses map_load).	270	uses map_find and cf::map::load uses map_load).
234		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
		275
235	=cut	276	=cut
236		277
237	our %LOCK;	278	our %LOCK;
238		279
239	sub lock_wait($) {	280	sub lock_wait($) {
…		…
258	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
259	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
260	}	301	}
261	}	302	}
262		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
		308	}
		309
263	sub freeze_mainloop {	310	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	311	return unless $TICK_WATCHER->is_active;
265		312
266	my $guard = Coro::guard {	313	my $guard = Coro::guard {
267	$TICK_WATCHER->start;	314	$TICK_WATCHER->start;
268	$WRITE_RUNTIME_WATCHER->start;
269	};	315	};
270	$WRITE_RUNTIME_WATCHER->stop;
271	$TICK_WATCHER->stop;	316	$TICK_WATCHER->stop;
272	$guard	317	$guard
273	}	318	}
274		319
275	=item cf::async { BLOCK }	320	=item cf::async { BLOCK }
…		…
282		327
283	BEGIN { *async = \&Coro::async_pool }	328	BEGIN { *async = \&Coro::async_pool }
284		329
285	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
286		331
287	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
288	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
290		336
291	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
292	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
293	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
294	fast or be very important.	340	fast or be very important.
…		…
297		343
298	sub sync_job(&) {	344	sub sync_job(&) {
299	my ($job) = @_;	345	my ($job) = @_;
300		346
301	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
302	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
304		352
305	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
306	# (but this is cancel-safe)	354	# (but this is cancel-safe)
…		…
317		365
318	while ($busy) {	366	while ($busy) {
319	Coro::cede or Event::one_event;	367	Coro::cede or Event::one_event;
320	}	368	}
321		369
		370	$time = Event::time - $time;
		371
		372	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		373	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		374
		375	$tick_start += $time; # do not account sync jobs to server load
		376
322	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
323	} else {	378	} else {
324	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
325		380
326	$job->()	381	$job->()
…		…
345	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
346		401
347	$coro	402	$coro
348	}	403	}
349		404
350	sub write_runtime {	405	=item fork_call { }, $args
351	my $runtime = cf::localdir . "/runtime";
352		406
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	407	Executes the given code block with the given arguments in a seperate
354	or return;	408	process, returning the results. Everything must be serialisable with
		409	Coro::Storable. May, of course, block. Note that the executed sub may
		410	never block itself or use any form of Event handling.
355		411
356	my $value = $cf::RUNTIME + 90 + 10;	412	=cut
357	# 10 is the runtime save interval, for a monotonic clock
358	# 60 allows for the watchdog to kill the server.
359		413
360	(aio_write $fh, 0, (length $value), $value, 0) <= 0	414	sub fork_call(&@) {
361	and return;	415	my ($cb, @args) = @_;
362		416
363	aio_fsync $fh	417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
364	and return;	418	# or die "socketpair: $!";
		419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
365		421
		422	if (my $pid = fork) {
366	close $fh	423	close $fh2;
367	or return;
368		424
369	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
370	and return;	426	$res = Coro::Storable::thaw $res;
371		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
372	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		480	my $key = "$_[0]/$_[1]";
		481
		482	cf::sync_job {
		483	BDB::db_get $DB, undef, $key, my $data;
		484
		485	$! ? ()
		486	: $data
		487	}
		488	}
		489
		490	sub db_put($$$) {
		491	BDB::dbreq_pri 4;
		492	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		493	}
		494
		495	=item cf::cache $id => [$paths...], $processversion => $process
		496
		497	Generic caching function that returns the value of the resource $id,
		498	caching and regenerating as required.
		499
		500	This function can block.
		501
		502	=cut
		503
		504	sub cache {
		505	my ($id, $src, $processversion, $process) = @_;
		506
		507	my $meta =
		508	join "\x00",
		509	$processversion,
		510	map {
		511	aio_stat $_
		512	and Carp::croak "$_: $!";
		513
		514	($_, (stat _)[7,9])
		515	} @$src;
		516
		517	my $dbmeta = db_get cache => "$id/meta";
		518	if ($dbmeta ne $meta) {
		519	# changed, we may need to process
		520
		521	my @data;
		522	my $md5;
		523
		524	for (0 .. $#$src) {
		525	0 <= aio_load $src->[$_], $data[$_]
		526	or Carp::croak "$src->[$_]: $!";
		527	}
		528
		529	# if processing is expensive, check
		530	# checksum first
		531	if (1) {
		532	$md5 =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	Coro::cede;
		537	($src->[$_], Digest::MD5::md5_hex $data[$_])
		538	} 0.. $#$src;
		539
		540
		541	my $dbmd5 = db_get cache => "$id/md5";
		542	if ($dbmd5 eq $md5) {
		543	db_put cache => "$id/meta", $meta;
		544
		545	return db_get cache => "$id/data";
		546	}
		547	}
		548
		549	my $t1 = Time::HiRes::time;
		550	my $data = $process->(\@data);
		551	my $t2 = Time::HiRes::time;
		552
		553	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		554
		555	db_put cache => "$id/data", $data;
		556	db_put cache => "$id/md5" , $md5;
		557	db_put cache => "$id/meta", $meta;
		558
		559	return $data;
		560	}
		561
		562	db_get cache => "$id/data"
		563	}
		564
		565	=item cf::datalog type => key => value, ...
		566
		567	Log a datalog packet of the given type with the given key-value pairs.
		568
		569	=cut
		570
		571	sub datalog($@) {
		572	my ($type, %kv) = @_;
		573	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
373	}	574	}
374		575
375	=back	576	=back
376		577
377	=cut	578	=cut
…		…
384	attach callbacks/event handlers (a collection of which is called an "attachment")	585	attach callbacks/event handlers (a collection of which is called an "attachment")
385	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
386		587
387	In the following description, CLASS can be any of C<global>, C<object>	588	In the following description, CLASS can be any of C<global>, C<object>
388	C<player>, C<client> or C<map> (i.e. the attachable objects in	589	C<player>, C<client> or C<map> (i.e. the attachable objects in
389	crossfire+).	590	Crossfire TRT).
390		591
391	=over 4	592	=over 4
392		593
393	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
394		595
…		…
557	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
558		759
559	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
560	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
561	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
562	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
563		764
564	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
565	my $pkg = shift @arg;	766	my $pkg = shift @arg;
566		767
567	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
596	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
597	}	798	}
598		799
599	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
600	} else {	801	} else {
601	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
602	}	803	}
603		804
604	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
605	}	806	}
606		807
…		…
608	if (ref $_[0]) {	809	if (ref $_[0]) {
609	_object_attach @_;	810	_object_attach @_;
610	} else {	811	} else {
611	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
612	}	813	}
		814	_recalc_want;
613	};	815	};
614		816
615	# all those should be optimised	817	# all those should be optimised
616	sub cf::attachable::detach {	818	sub cf::attachable::detach {
617	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
620	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
621	reattach ($obj);	823	reattach ($obj);
622	} else {	824	} else {
623	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
624	}	826	}
		827	_recalc_want;
625	};	828	};
626		829
627	sub cf::attachable::attached {	830	sub cf::attachable::attached {
628	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
629		832
…		…
752	$filename, length $$rdata, scalar @$objs;	955	$filename, length $$rdata, scalar @$objs;
753		956
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	957	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	959	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	960	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	961	close $fh;
759		962
760	if (@$objs) {	963	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	964	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	965	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	966	my $data = Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	967	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	968	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	969	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	970	aio_rename "$filename.pst~", "$filename.pst";
768	}	971	}
769	} else {	972	} else {
770	aio_unlink "$filename.pst";	973	aio_unlink "$filename.pst";
…		…
802	or return;	1005	or return;
803	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
804	}	1007	}
805		1008
806	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
807	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
808	return ($data, $av);	1011	return ($data, $av);
809	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
810		1019
811	#############################################################################	1020	#############################################################################
812	# command handling &c	1021	# command handling &c
813		1022
814	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
827	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
828	}	1037	}
829		1038
830	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
831		1040
832	Register a callbackf ro execution when the client sends an extcmd packet.	1041	Register a callback for execution when the client sends an (synchronous)
		1042	extcmd packet. Ext commands will be processed in the order they are
		1043	received by the server, like other user commands. The first argument is
		1044	the logged-in player. Ext commands can only be processed after a player
		1045	has logged in successfully.
833		1046
834	If the callback returns something, it is sent back as if reply was being	1047	If the callback returns something, it is sent back as if reply was being
835	called.	1048	called.
836		1049
		1050	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1051
		1052	Register a callback for execution when the client sends an (asynchronous)
		1053	exticmd packet. Exti commands are processed by the server as soon as they
		1054	are received, i.e. out of order w.r.t. other commands. The first argument
		1055	is a client socket. Exti commands can be received anytime, even before
		1056	log-in.
		1057
		1058	If the callback returns something, it is sent back as if reply was being
		1059	called.
		1060
837	=cut	1061	=cut
838		1062
839	sub register_extcmd {	1063	sub register_extcmd {
840	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
841		1065
842	$EXTCMD{$name} = $cb;	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
843	}	1073	}
844		1074
845	cf::player->attach (	1075	cf::player->attach (
846	on_command => sub {	1076	on_command => sub {
847	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
872		1102
873	cf::override;	1103	cf::override;
874	},	1104	},
875	);	1105	);
876		1106
877	sub load_extension {
878	my ($path) = @_;
879
880	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
881	my $base = $1;
882	my $pkg = $1;
883	$pkg =~ s/[^[:word:]]/_/g;
884	$pkg = "ext::$pkg";
885
886	warn "... loading '$path' into '$pkg'\n";
887
888	open my $fh, "<:utf8", $path
889	or die "$path: $!";
890
891	my $source =
892	"package $pkg; use strict; use utf8;\n"
893	. "#line 1 \"$path\"\n{\n"
894	. (do { local $/; <$fh> })
895	. "\n};\n1";
896
897	unless (eval $source) {
898	my $msg = $@ ? "$path: $@\n"
899	: "extension disabled.\n";
900	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
901	warn $@;
902	warn "mandatory extension failed to load, exiting.\n";
903	exit 1;
904	}
905	die $@;
906	}
907
908	push @EXTS, $pkg;
909	}
910
911	sub load_extensions {	1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
912	for my $ext (<$LIBDIR/*.ext>) {	1111	for my $path (<$LIBDIR/*.ext>) {
913	next unless -r $ext;	1112	next unless -r $path;
914	eval {	1113
915	load_extension $ext;	1114	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1115	my $base = $1;
		1116	my $pkg = $1;
		1117	$pkg =~ s/[^[:word:]]/_/g;
		1118	$pkg = "ext::$pkg";
		1119
		1120	open my $fh, "<:utf8", $path
		1121	or die "$path: $!";
		1122
		1123	my $source = do { local $/; <$fh> };
		1124
		1125	my %ext = (
		1126	path => $path,
		1127	base => $base,
		1128	pkg => $pkg,
		1129	);
		1130
		1131	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1132	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1133
		1134	$ext{source} =
		1135	"package $pkg; use strict; use utf8;\n"
		1136	. "#line 1 \"$path\"\n{\n"
		1137	. $source
		1138	. "\n};\n1";
		1139
		1140	$todo{$base} = \%ext;
		1141	}
		1142
		1143	my %done;
		1144	while (%todo) {
		1145	my $progress;
		1146
		1147	while (my ($k, $v) = each %todo) {
		1148	for (split /,\s*/, $v->{meta}{depends}) {
		1149	goto skip
		1150	unless exists $done{$_};
		1151	}
		1152
		1153	warn "... loading '$k' into '$v->{pkg}'\n";
		1154
		1155	unless (eval $v->{source}) {
		1156	my $msg = $@ ? "$v->{path}: $@\n"
		1157	: "$v->{base}: extension inactive.\n";
		1158
		1159	if (exists $v->{meta}{mandatory}) {
		1160	warn $msg;
		1161	warn "mandatory extension failed to load, exiting.\n";
		1162	exit 1;
		1163	}
		1164
		1165	warn $msg;
		1166	}
		1167
		1168	$done{$k} = delete $todo{$k};
		1169	push @EXTS, $v->{pkg};
		1170	$progress = 1;
916	1	1171	}
917	} or warn "$ext not loaded: $@";	1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
918	}	1177	};
919	}	1178	}
920		1179
921	#############################################################################	1180	#############################################################################
922		1181
		1182	=back
		1183
923	=head2 CORE EXTENSIONS	1184	=head2 CORE EXTENSIONS
924		1185
925	Functions and methods that extend core crossfire objects.	1186	Functions and methods that extend core crossfire objects.
926		1187
927	=cut	1188	=cut
…		…
939	Returns the given player object, loading it if necessary (might block).	1200	Returns the given player object, loading it if necessary (might block).
940		1201
941	=cut	1202	=cut
942		1203
943	sub playerdir($) {	1204	sub playerdir($) {
944	cf::localdir	1205	"$PLAYERDIR/"
945	. "/"
946	. cf::playerdir
947	. "/"
948	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1206	. (ref $_[0] ? $_[0]->ob->name : $_[0])
949	}	1207	}
950		1208
951	sub path($) {	1209	sub path($) {
952	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1210	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
953		1211
954	(playerdir $login) . "/$login.pl"	1212	(playerdir $login) . "/playerdata"
955	}	1213	}
956		1214
957	sub find_active($) {	1215	sub find_active($) {
958	$cf::PLAYER{$_[0]}	1216	$cf::PLAYER{$_[0]}
959	and $cf::PLAYER{$_[0]}->active	1217	and $cf::PLAYER{$_[0]}->active
…		…
972	my $login = $_[0];	1230	my $login = $_[0];
973		1231
974	my $guard = cf::lock_acquire "user_find:$login";	1232	my $guard = cf::lock_acquire "user_find:$login";
975		1233
976	$cf::PLAYER{$_[0]} || do {	1234	$cf::PLAYER{$_[0]} || do {
		1235	# rename old playerfiles to new ones
		1236	#TODO: remove when no longer required
		1237	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1238	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1239	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1240	aio_unlink +(playerdir $login) . "/$login.pl";
		1241
977	my $pl = load_pl path $login	1242	my $pl = load_pl path $login
978	or return;	1243	or return;
979	$cf::PLAYER{$login} = $pl	1244	$cf::PLAYER{$login} = $pl
980	}	1245	}
981	}	1246	}
…		…
1018		1283
1019	=cut	1284	=cut
1020		1285
1021	sub quit_character {	1286	sub quit_character {
1022	my ($pl) = @_;	1287	my ($pl) = @_;
		1288
		1289	my $name = $pl->ob->name;
1023		1290
1024	$pl->{deny_save} = 1;	1291	$pl->{deny_save} = 1;
1025	$pl->password ("*"); # this should lock out the player until we nuked the dir	1292	$pl->password ("*"); # this should lock out the player until we nuked the dir
1026		1293
1027	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1294	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1032	my $path = playerdir $pl;	1299	my $path = playerdir $pl;
1033	my $temp = "$path~$cf::RUNTIME~deleting~";	1300	my $temp = "$path~$cf::RUNTIME~deleting~";
1034	aio_rename $path, $temp;	1301	aio_rename $path, $temp;
1035	delete $cf::PLAYER{$pl->ob->name};	1302	delete $cf::PLAYER{$pl->ob->name};
1036	$pl->destroy;	1303	$pl->destroy;
		1304
		1305	my $prefix = qr<^~\Q$name\E/>;
		1306
		1307	# nuke player maps
		1308	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1309
1037	IO::AIO::aio_rmtree $temp;	1310	IO::AIO::aio_rmtree $temp;
		1311	}
		1312
		1313	=item $pl->kick
		1314
		1315	Kicks a player out of the game. This destroys the connection.
		1316
		1317	=cut
		1318
		1319	sub kick {
		1320	my ($pl, $kicker) = @_;
		1321
		1322	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1323	$pl->killer ("kicked");
		1324	$pl->ns->destroy;
1038	}	1325	}
1039		1326
1040	=item cf::player::list_logins	1327	=item cf::player::list_logins
1041		1328
1042	Returns am arrayref of all valid playernames in the system, can take a	1329	Returns am arrayref of all valid playernames in the system, can take a
1043	while and may block, so not sync_job-capable, ever.	1330	while and may block, so not sync_job-capable, ever.
1044		1331
1045	=cut	1332	=cut
1046		1333
1047	sub list_logins {	1334	sub list_logins {
1048	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1335	my $dirs = aio_readdir $PLAYERDIR
1049	or return [];	1336	or return [];
1050		1337
1051	my @logins;	1338	my @logins;
1052		1339
1053	for my $login (@$dirs) {	1340	for my $login (@$dirs) {
…		…
1070	=cut	1357	=cut
1071		1358
1072	sub maps($) {	1359	sub maps($) {
1073	my ($pl) = @_;	1360	my ($pl) = @_;
1074		1361
		1362	$pl = ref $pl ? $pl->ob->name : $pl;
		1363
1075	my $files = aio_readdir playerdir $pl	1364	my $files = aio_readdir playerdir $pl
1076	or return;	1365	or return;
1077		1366
1078	my @paths;	1367	my @paths;
1079		1368
1080	for (@$files) {	1369	for (@$files) {
1081	utf8::decode $_;	1370	utf8::decode $_;
1082	next if /\.(?:pl|pst)$/;	1371	next if /\.(?:pl|pst)$/;
1083	next unless /^$PATH_SEP/o;	1372	next unless /^$PATH_SEP/o;
1084		1373
1085	push @paths, cf::map::normalise "~" . $pl->ob->name . "/" . $_;	1374	push @paths, cf::map::normalise "~$pl/$_";
1086	}	1375	}
1087		1376
1088	\@paths	1377	\@paths
1089	}	1378	}
1090		1379
		1380	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1381
		1382	Expand crossfire pod fragments into protocol xml.
		1383
		1384	=cut
		1385
		1386	sub expand_cfpod {
		1387	((my $self), (local $_)) = @_;
		1388
		1389	# escape & and <
		1390	s/&/&amp;/g;
		1391	s/(?<![BIUGH])</&lt;/g;
		1392
		1393	# this is buggy, it needs to properly take care of nested <'s
		1394
		1395	1 while
		1396	# replace B<>, I<>, U<> etc.
		1397	s/B<([^\>]*)>/<b>$1<\/b>/
		1398	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1399	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1400	# replace G<male|female> tags
		1401	|| s{G<([^>|]*)\|([^>]*)>}{
		1402	$self->gender ? $2 : $1
		1403	}ge
		1404	# replace H<hint text>
		1405	|| s/H<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1406
		1407	# create single paragraphs (very hackish)
		1408	s/(?<=\S)\n(?=\w)/ /g;
		1409
		1410	$_
		1411	}
		1412
1091	=item $player->ext_reply ($msgid, $msgtype, %msg)	1413	=item $player->ext_reply ($msgid, %msg)
1092		1414
1093	Sends an ext reply to the player.	1415	Sends an ext reply to the player.
1094		1416
1095	=cut	1417	=cut
1096		1418
1097	sub ext_reply($$$%) {	1419	sub ext_reply($$%) {
1098	my ($self, $id, %msg) = @_;	1420	my ($self, $id, %msg) = @_;
1099		1421
1100	$msg{msgid} = $id;	1422	$msg{msgid} = $id;
1101
1102	$self->send ("ext " . cf::to_json \%msg);	1423	$self->send ("ext " . cf::to_json \%msg);
1103	}	1424	}
1104		1425
1105	package cf;	1426	=item $player->ext_event ($type, %msg)
		1427
		1428	Sends an ext event to the client.
		1429
		1430	=cut
		1431
		1432	sub ext_event($$%) {
		1433	my ($self, $type, %msg) = @_;
		1434
		1435	$self->ns->ext_event ($type, %msg);
		1436	}
		1437
		1438	=head3 cf::region
		1439
		1440	=over 4
		1441
		1442	=cut
		1443
		1444	package cf::region;
		1445
		1446	=item cf::region::find_by_path $path
		1447
		1448	Tries to decuce the likely region for a map knowing only its path.
		1449
		1450	=cut
		1451
		1452	sub find_by_path($) {
		1453	my ($path) = @_;
		1454
		1455	my ($match, $specificity);
		1456
		1457	for my $region (list) {
		1458	if ($region->match && $path =~ $region->match) {
		1459	($match, $specificity) = ($region, $region->specificity)
		1460	if $region->specificity > $specificity;
		1461	}
		1462	}
		1463
		1464	$match
		1465	}
1106		1466
1107	=back	1467	=back
1108
1109		1468
1110	=head3 cf::map	1469	=head3 cf::map
1111		1470
1112	=over 4	1471	=over 4
1113		1472
…		…
1168	my ($self, $merge) = @_;	1527	my ($self, $merge) = @_;
1169		1528
1170	# we have to keep some variables in memory intact	1529	# we have to keep some variables in memory intact
1171	local $self->{path};	1530	local $self->{path};
1172	local $self->{load_path};	1531	local $self->{load_path};
1173	local $self->{deny_save};
1174	local $self->{deny_reset};
1175		1532
1176	$self->SUPER::thawer_merge ($merge);	1533	$self->SUPER::thawer_merge ($merge);
1177	}	1534	}
1178		1535
1179	sub normalise {	1536	sub normalise {
…		…
1251		1608
1252	# the original (read-only) location	1609	# the original (read-only) location
1253	sub load_path {	1610	sub load_path {
1254	my ($self) = @_;	1611	my ($self) = @_;
1255		1612
1256	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1613	"$MAPDIR/$self->{path}.map"
1257	}	1614	}
1258		1615
1259	# the temporary/swap location	1616	# the temporary/swap location
1260	sub save_path {	1617	sub save_path {
1261	my ($self) = @_;	1618	my ($self) = @_;
1262		1619
1263	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1620	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1264	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1621	"$TMPDIR/$path.map"
1265	}	1622	}
1266		1623
1267	# the unique path, undef == no special unique path	1624	# the unique path, undef == no special unique path
1268	sub uniq_path {	1625	sub uniq_path {
1269	my ($self) = @_;	1626	my ($self) = @_;
1270		1627
1271	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1628	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1272	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1629	"$UNIQUEDIR/$path"
1273	}	1630	}
1274		1631
1275	# and all this just because we cannot iterate over	1632	# and all this just because we cannot iterate over
1276	# all maps in C++...	1633	# all maps in C++...
1277	sub change_all_map_light {	1634	sub change_all_map_light {
…		…
1279		1636
1280	$_->change_map_light ($change)	1637	$_->change_map_light ($change)
1281	for grep $_->outdoor, values %cf::MAP;	1638	for grep $_->outdoor, values %cf::MAP;
1282	}	1639	}
1283		1640
		1641	sub decay_objects {
		1642	my ($self) = @_;
		1643
		1644	return if $self->{deny_reset};
		1645
		1646	$self->do_decay_objects;
		1647	}
		1648
1284	sub unlink_save {	1649	sub unlink_save {
1285	my ($self) = @_;	1650	my ($self) = @_;
1286		1651
1287	utf8::encode (my $save = $self->save_path);	1652	utf8::encode (my $save = $self->save_path);
1288	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1653	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1291		1656
1292	sub load_header_from($) {	1657	sub load_header_from($) {
1293	my ($self, $path) = @_;	1658	my ($self, $path) = @_;
1294		1659
1295	utf8::encode $path;	1660	utf8::encode $path;
1296	aio_open $path, O_RDONLY, 0	1661	#aio_open $path, O_RDONLY, 0
1297	or return;	1662	# or return;
1298		1663
1299	$self->_load_header ($path)	1664	$self->_load_header ($path)
1300	or return;	1665	or return;
1301		1666
1302	$self->{load_path} = $path;	1667	$self->{load_path} = $path;
…		…
1344	$self->load_header_orig	1709	$self->load_header_orig
1345	or return;	1710	or return;
1346	$self->prepare_orig;	1711	$self->prepare_orig;
1347	}	1712	}
1348		1713
		1714	$self->{deny_reset} = 1
		1715	if $self->no_reset;
		1716
		1717	$self->default_region (cf::region::find_by_path $self->{path})
		1718	unless $self->default_region;
		1719
1349	1	1720	1
1350	}	1721	}
1351		1722
1352	sub find;	1723	sub find;
1353	sub find {	1724	sub find {
…		…
1365	$map->{last_save} = $cf::RUNTIME;	1736	$map->{last_save} = $cf::RUNTIME;
1366		1737
1367	$map->load_header	1738	$map->load_header
1368	or return;	1739	or return;
1369		1740
1370	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1741	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1371	# doing this can freeze the server in a sync job, obviously	1742	# doing this can freeze the server in a sync job, obviously
1372	#$cf::WAIT_FOR_TICK->wait;	1743	#$cf::WAIT_FOR_TICK->wait;
1373	$map->reset;	1744	$map->reset;
1374	undef $guard;	1745	undef $guard;
1375	return find $path;	1746	return find $path;
…		…
1386	my ($self) = @_;	1757	my ($self) = @_;
1387		1758
1388	local $self->{deny_reset} = 1; # loading can take a long time	1759	local $self->{deny_reset} = 1; # loading can take a long time
1389		1760
1390	my $path = $self->{path};	1761	my $path = $self->{path};
		1762
		1763	{
1391	my $guard = cf::lock_acquire "map_load:$path";	1764	my $guard = cf::lock_acquire "map_load:$path";
1392		1765
1393	return if $self->in_memory != cf::MAP_SWAPPED;	1766	return if $self->in_memory != cf::MAP_SWAPPED;
1394		1767
1395	$self->in_memory (cf::MAP_LOADING);	1768	$self->in_memory (cf::MAP_LOADING);
1396		1769
1397	$self->alloc;	1770	$self->alloc;
1398		1771
1399	$self->pre_load;	1772	$self->pre_load;
1400
1401	$self->_load_objects ($self->{load_path}, 1)
1402	or return;
1403
1404	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1405	if delete $self->{load_original};
1406
1407	if (my $uniq = $self->uniq_path) {
1408	utf8::encode $uniq;
1409	if (aio_open $uniq, O_RDONLY, 0) {
1410	$self->clear_unique_items;
1411	$self->_load_objects ($uniq, 0);
1412	}
1413	}
1414
1415	Coro::cede;
1416
1417	# now do the right thing for maps
1418	$self->link_multipart_objects;
1419
1420	unless ($self->{deny_activate}) {
1421	$self->decay_objects;
1422	$self->fix_auto_apply;
1423	$self->update_buttons;
1424	Coro::cede;	1773	Coro::cede;
1425	$self->set_darkness_map;	1774
		1775	$self->_load_objects ($self->{load_path}, 1)
		1776	or return;
		1777
		1778	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1779	if delete $self->{load_original};
		1780
		1781	if (my $uniq = $self->uniq_path) {
		1782	utf8::encode $uniq;
		1783	if (aio_open $uniq, O_RDONLY, 0) {
		1784	$self->clear_unique_items;
		1785	$self->_load_objects ($uniq, 0);
		1786	}
		1787	}
		1788
		1789	Coro::cede;
		1790	# now do the right thing for maps
		1791	$self->link_multipart_objects;
1426	$self->difficulty ($self->estimate_difficulty)	1792	$self->difficulty ($self->estimate_difficulty)
1427	unless $self->difficulty;	1793	unless $self->difficulty;
1428	Coro::cede;	1794	Coro::cede;
		1795
		1796	unless ($self->{deny_activate}) {
		1797	$self->decay_objects;
		1798	$self->fix_auto_apply;
		1799	$self->update_buttons;
		1800	Coro::cede;
		1801	$self->set_darkness_map;
		1802	Coro::cede;
1429	$self->activate;	1803	$self->activate;
		1804	}
		1805
		1806	$self->in_memory (cf::MAP_IN_MEMORY);
1430	}	1807	}
1431		1808
1432	$self->post_load;	1809	$self->post_load;
1433
1434	$self->in_memory (cf::MAP_IN_MEMORY);
1435	}	1810	}
1436		1811
1437	sub customise_for {	1812	sub customise_for {
1438	my ($self, $ob) = @_;	1813	my ($self, $ob) = @_;
1439		1814
1440	return find "~" . $ob->name . "/" . $self->{path}	1815	return find "~" . $ob->name . "/" . $self->{path}
1441	if $self->per_player;	1816	if $self->per_player;
		1817
		1818	# return find "?party/" . $ob->name . "/" . $self->{path}
		1819	# if $self->per_party;
1442		1820
1443	$self	1821	$self
1444	}	1822	}
1445		1823
1446	# find and load all maps in the 3x3 area around a map	1824	# find and load all maps in the 3x3 area around a map
…		…
1557		1935
1558	sub reset_at {	1936	sub reset_at {
1559	my ($self) = @_;	1937	my ($self) = @_;
1560		1938
1561	# TODO: safety, remove and allow resettable per-player maps	1939	# TODO: safety, remove and allow resettable per-player maps
1562	return 1e99 if $self->isa ("ext::map_per_player");#d#
1563	return 1e99 if $self->{deny_reset};	1940	return 1e99 if $self->{deny_reset};
1564		1941
1565	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1942	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1566	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1943	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1567		1944
…		…
1578	my ($self) = @_;	1955	my ($self) = @_;
1579		1956
1580	my $lock = cf::lock_acquire "map_data:$self->{path}";	1957	my $lock = cf::lock_acquire "map_data:$self->{path}";
1581		1958
1582	return if $self->players;	1959	return if $self->players;
1583	return if $self->isa ("ext::map_per_player");#d#
1584		1960
1585	warn "resetting map ", $self->path;#d#	1961	warn "resetting map ", $self->path;
		1962
		1963	$self->in_memory (cf::MAP_SWAPPED);
		1964
		1965	# need to save uniques path
		1966	unless ($self->{deny_save}) {
		1967	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1968
		1969	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1970	if $uniq;
		1971	}
1586		1972
1587	delete $cf::MAP{$self->path};	1973	delete $cf::MAP{$self->path};
1588		1974
1589	$self->in_memory (cf::MAP_SWAPPED);
1590	$self->clear;	1975	$self->clear;
1591		1976
1592	$_->clear_links_to ($self) for values %cf::MAP;	1977	$_->clear_links_to ($self) for values %cf::MAP;
1593		1978
1594	$self->unlink_save;	1979	$self->unlink_save;
…		…
1613	$cf::MAP{$self->path} = $self;	1998	$cf::MAP{$self->path} = $self;
1614		1999
1615	$self->reset; # polite request, might not happen	2000	$self->reset; # polite request, might not happen
1616	}	2001	}
1617		2002
		2003	=item $maps = cf::map::tmp_maps
		2004
		2005	Returns an arrayref with all map paths of currently instantiated and saved
		2006	maps. May block.
		2007
		2008	=cut
		2009
		2010	sub tmp_maps() {
		2011	[
		2012	map {
		2013	utf8::decode $_;
		2014	/\.map$/
		2015	? normalise $_
		2016	: ()
		2017	} @{ aio_readdir $TMPDIR or [] }
		2018	]
		2019	}
		2020
		2021	=item $maps = cf::map::random_maps
		2022
		2023	Returns an arrayref with all map paths of currently instantiated and saved
		2024	random maps. May block.
		2025
		2026	=cut
		2027
		2028	sub random_maps() {
		2029	[
		2030	map {
		2031	utf8::decode $_;
		2032	/\.map$/
		2033	? normalise "?random/$_"
		2034	: ()
		2035	} @{ aio_readdir $RANDOMDIR or [] }
		2036	]
		2037	}
		2038
1618	=item cf::map::unique_maps	2039	=item cf::map::unique_maps
1619		2040
1620	Returns an arrayref of paths of all shared maps that have	2041	Returns an arrayref of paths of all shared maps that have
1621	instantiated unique items. May block.	2042	instantiated unique items. May block.
1622		2043
1623	=cut	2044	=cut
1624		2045
1625	sub unique_maps() {	2046	sub unique_maps() {
1626	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2047	[
1627	or return;	2048	map {
1628
1629	my @paths;
1630
1631	for (@$files) {
1632	utf8::decode $_;	2049	utf8::decode $_;
1633	next if /\.pst$/;	2050	/\.map$/
1634	next unless /^$PATH_SEP/o;	2051	? normalise $_
1635		2052	: ()
1636	push @paths, cf::map::normalise $_;	2053	} @{ aio_readdir $UNIQUEDIR or [] }
1637	}	2054	]
1638
1639	\@paths
1640	}	2055	}
1641		2056
1642	package cf;	2057	package cf;
1643		2058
1644	=back	2059	=back
…		…
1690		2105
1691	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2106	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1692		2107
1693	if ($self->{record_replies}) {	2108	if ($self->{record_replies}) {
1694	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2109	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2110
1695	} else {	2111	} else {
		2112	my $pl = $self->contr;
		2113
		2114	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2115	my $diag = $pl->{npc_dialog};
		2116	$diag->{pl}->ext_reply (
		2117	$diag->{id},
		2118	msgtype => "reply",
		2119	msg => $diag->{pl}->expand_cfpod ($msg),
		2120	add_topics => []
		2121	);
		2122
		2123	} else {
1696	$msg = $npc->name . " says: $msg" if $npc;	2124	$msg = $npc->name . " says: $msg" if $npc;
1697	$self->message ($msg, $flags);	2125	$self->message ($msg, $flags);
		2126	}
1698	}	2127	}
1699	}	2128	}
1700		2129
1701	=item $player_object->may ("access")	2130	=item $player_object->may ("access")
1702		2131
…		…
1750	$self->deactivate_recursive;	2179	$self->deactivate_recursive;
1751		2180
1752	return if UNIVERSAL::isa $self->map, "ext::map_link";	2181	return if UNIVERSAL::isa $self->map, "ext::map_link";
1753		2182
1754	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2183	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1755	if $self->map;	2184	if $self->map && $self->map->{path} ne "{link}";
1756		2185
1757	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2186	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1758	}	2187	}
1759		2188
1760	sub cf::object::player::leave_link {	2189	sub cf::object::player::leave_link {
1761	my ($self, $map, $x, $y) = @_;	2190	my ($self, $map, $x, $y) = @_;
		2191
		2192	return unless $self->contr->active;
1762		2193
1763	my $link_pos = delete $self->{_link_pos};	2194	my $link_pos = delete $self->{_link_pos};
1764		2195
1765	unless ($map) {	2196	unless ($map) {
1766	# restore original map position	2197	# restore original map position
…		…
1784	$map->load;	2215	$map->load;
1785	$map->load_diag;	2216	$map->load_diag;
1786		2217
1787	return unless $self->contr->active;	2218	return unless $self->contr->active;
1788	$self->activate_recursive;	2219	$self->activate_recursive;
		2220
		2221	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1789	$self->enter_map ($map, $x, $y);	2222	$self->enter_map ($map, $x, $y);
1790	}	2223	}
1791		2224
1792	cf::player->attach (
1793	on_logout => sub {
1794	my ($pl) = @_;
1795
1796	# abort map switching before logout
1797	if ($pl->ob->{_link_pos}) {
1798	cf::sync_job {
1799	$pl->ob->leave_link
1800	};
1801	}
1802	},
1803	on_login => sub {
1804	my ($pl) = @_;
1805
1806	# try to abort aborted map switching on player login :)
1807	# should happen only on crashes
1808	if ($pl->ob->{_link_pos}) {
1809	$pl->ob->enter_link;
1810	(async {
1811	# we need this sleep as the login has a concurrent enter_exit running
1812	# and this sleep increases chances of the player not ending up in scorn
1813	$pl->ob->reply (undef,
1814	"There was an internal problem at your last logout, "
1815	. "the server will try to bring you to your intended destination in a second.",
1816	cf::NDI_RED);
1817	Coro::Timer::sleep 1;
1818	$pl->ob->leave_link;
1819	})->prio (2);
1820	}
1821	},
1822	);
1823
1824	=item $player_object->goto ($path, $x, $y)	2225	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1825		2226
		2227	Moves the player to the given map-path and coordinates by first freezing
		2228	her, loading and preparing them map, calling the provided $check callback
		2229	that has to return the map if sucecssful, and then unfreezes the player on
		2230	the new (success) or old (failed) map position.
		2231
1826	=cut	2232	=cut
		2233
		2234	our $GOTOGEN;
1827		2235
1828	sub cf::object::player::goto {	2236	sub cf::object::player::goto {
1829	my ($self, $path, $x, $y) = @_;	2237	my ($self, $path, $x, $y, $check) = @_;
		2238
		2239	# do generation counting so two concurrent goto's will be executed in-order
		2240	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1830		2241
1831	$self->enter_link;	2242	$self->enter_link;
1832		2243
1833	(async {	2244	(async {
1834	my $map = eval {	2245	my $map = eval {
1835	my $map = cf::map::find $path;	2246	my $map = cf::map::find $path;
		2247
		2248	if ($map) {
1836	$map = $map->customise_for ($self) if $map;	2249	$map = $map->customise_for ($self);
		2250	$map = $check->($map) if $check && $map;
		2251	} else {
		2252	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2253	}
		2254
1837	$map	2255	$map
		2256	};
		2257
		2258	if ($@) {
		2259	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2260	LOG llevError | logBacktrace, Carp::longmess $@;
1838	} or	2261	}
1839	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1840		2262
		2263	if ($gen == $self->{_goto_generation}) {
		2264	delete $self->{_goto_generation};
1841	$self->leave_link ($map, $x, $y);	2265	$self->leave_link ($map, $x, $y);
		2266	}
1842	})->prio (1);	2267	})->prio (1);
1843	}	2268	}
1844		2269
1845	=item $player_object->enter_exit ($exit_object)	2270	=item $player_object->enter_exit ($exit_object)
1846		2271
…		…
1885		2310
1886	$rmp->{random_seed} ||= $exit->random_seed;	2311	$rmp->{random_seed} ||= $exit->random_seed;
1887		2312
1888	my $data = cf::to_json $rmp;	2313	my $data = cf::to_json $rmp;
1889	my $md5 = Digest::MD5::md5_hex $data;	2314	my $md5 = Digest::MD5::md5_hex $data;
1890	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2315	my $meta = "$RANDOMDIR/$md5.meta";
1891		2316
1892	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2317	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1893	aio_write $fh, 0, (length $data), $data, 0;	2318	aio_write $fh, 0, (length $data), $data, 0;
1894	undef $fh;	2319	undef $fh;
1895	aio_rename "$meta~", $meta;	2320	aio_rename "$meta~", $meta;
…		…
1904		2329
1905	return unless $self->type == cf::PLAYER;	2330	return unless $self->type == cf::PLAYER;
1906		2331
1907	if ($exit->slaying eq "/!") {	2332	if ($exit->slaying eq "/!") {
1908	#TODO: this should de-fi-ni-te-ly not be a sync-job	2333	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2334	# the problem is that $exit might not survive long enough
		2335	# so it needs to be done right now, right here
1909	cf::sync_job { prepare_random_map $exit };	2336	cf::sync_job { prepare_random_map $exit };
1910	}	2337	}
1911		2338
1912	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2339	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1913	my $hp = $exit->stats->hp;	2340	my $hp = $exit->stats->hp;
…		…
1921	$self->goto ($slaying, $hp, $sp);	2348	$self->goto ($slaying, $hp, $sp);
1922		2349
1923	1;	2350	1;
1924	}) {	2351	}) {
1925	$self->message ("Something went wrong deep within the crossfire server. "	2352	$self->message ("Something went wrong deep within the crossfire server. "
1926	. "I'll try to bring you back to the map you were before. "	2353	. "I'll try to bring you back to the map you were before. "
1927	. "Please report this to the dungeon master!",	2354	. "Please report this to the dungeon master!",
1928	cf::NDI_UNIQUE | cf::NDI_RED);	2355	cf::NDI_UNIQUE | cf::NDI_RED);
1929		2356
1930	warn "ERROR in enter_exit: $@";	2357	warn "ERROR in enter_exit: $@";
1931	$self->leave_link;	2358	$self->leave_link;
1932	}	2359	}
1933	})->prio (1);	2360	})->prio (1);
…		…
1946		2373
1947	sub cf::client::send_drawinfo {	2374	sub cf::client::send_drawinfo {
1948	my ($self, $text, $flags) = @_;	2375	my ($self, $text, $flags) = @_;
1949		2376
1950	utf8::encode $text;	2377	utf8::encode $text;
1951	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2378	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1952	}	2379	}
1953		2380
		2381	=item $client->send_msg ($color, $type, $msg, [extra...])
		2382
		2383	Send a drawinfo or msg packet to the client, formatting the msg for the
		2384	client if neccessary. C<$type> should be a string identifying the type of
		2385	the message, with C<log> being the default. If C<$color> is negative, suppress
		2386	the message unless the client supports the msg packet.
		2387
		2388	=cut
		2389
		2390	sub cf::client::send_msg {
		2391	my ($self, $color, $type, $msg, @extra) = @_;
		2392
		2393	$msg = $self->pl->expand_cfpod ($msg);
		2394
		2395	if ($self->can_msg) {
		2396	$self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
		2397	} else {
		2398	# replace some tags by gcfclient-compatible ones
		2399	for ($msg) {
		2400	1 while
		2401	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2402	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2403	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2404	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2405	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2406	}
		2407
		2408	if ($color >= 0) {
		2409	if (0 && $msg =~ /\[/) {
		2410	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2411	} else {
		2412	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2413	$self->send_packet ("drawinfo $color $msg")
		2414	}
		2415	}
		2416	}
		2417	}
		2418
		2419	=item $client->ext_event ($type, %msg)
		2420
		2421	Sends an ext event to the client.
		2422
		2423	=cut
		2424
		2425	sub cf::client::ext_event($$%) {
		2426	my ($self, $type, %msg) = @_;
		2427
		2428	$msg{msgtype} = "event_$type";
		2429	$self->send_packet ("ext " . cf::to_json \%msg);
		2430	}
1954		2431
1955	=item $success = $client->query ($flags, "text", \&cb)	2432	=item $success = $client->query ($flags, "text", \&cb)
1956		2433
1957	Queues a query to the client, calling the given callback with	2434	Queues a query to the client, calling the given callback with
1958	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2435	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1959	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2436	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1960		2437
1961	Queries can fail, so check the return code. Or don't, as queries will become	2438	Queries can fail, so check the return code. Or don't, as queries will
1962	reliable at some point in the future.	2439	become reliable at some point in the future.
1963		2440
1964	=cut	2441	=cut
1965		2442
1966	sub cf::client::query {	2443	sub cf::client::query {
1967	my ($self, $flags, $text, $cb) = @_;	2444	my ($self, $flags, $text, $cb) = @_;
…		…
1975	utf8::encode $text;	2452	utf8::encode $text;
1976	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2453	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1977		2454
1978	$self->send_packet ($self->{query_queue}[0][0])	2455	$self->send_packet ($self->{query_queue}[0][0])
1979	if @{ $self->{query_queue} } == 1;	2456	if @{ $self->{query_queue} } == 1;
		2457
		2458	1
1980	}	2459	}
1981		2460
1982	cf::client->attach (	2461	cf::client->attach (
1983	on_reply => sub {	2462	on_reply => sub {
1984	my ($ns, $msg) = @_;	2463	my ($ns, $msg) = @_;
…		…
1987	# get handled first	2466	# get handled first
1988	my $queue = delete $ns->{query_queue}	2467	my $queue = delete $ns->{query_queue}
1989	or return; # be conservative, not sure how that can happen, but we saw a crash here	2468	or return; # be conservative, not sure how that can happen, but we saw a crash here
1990		2469
1991	(shift @$queue)->[1]->($msg);	2470	(shift @$queue)->[1]->($msg);
		2471	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1992		2472
1993	push @{ $ns->{query_queue} }, @$queue;	2473	push @{ $ns->{query_queue} }, @$queue;
1994		2474
1995	if (@{ $ns->{query_queue} } == @$queue) {	2475	if (@{ $ns->{query_queue} } == @$queue) {
1996	if (@$queue) {	2476	if (@$queue) {
…		…
1998	} else {	2478	} else {
1999	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2479	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2000	}	2480	}
2001	}	2481	}
2002	},	2482	},
		2483	on_exticmd => sub {
		2484	my ($ns, $buf) = @_;
		2485
		2486	my $msg = eval { from_json $buf };
		2487
		2488	if (ref $msg) {
		2489	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2490	if (my %reply = $cb->($ns, $msg)) {
		2491	$reply{msgid} = $msg->{msgid};
		2492	$ns->send ("ext " . cf::to_json \%reply);
		2493	}
		2494	}
		2495	} else {
		2496	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2497	}
		2498
		2499	cf::override;
		2500	},
2003	);	2501	);
2004		2502
2005	=item $client->async (\&cb)	2503	=item $client->async (\&cb)
2006		2504
2007	Create a new coroutine, running the specified callback. The coroutine will	2505	Create a new coroutine, running the specified callback. The coroutine will
…		…
2054		2552
2055	# here we export the classes and methods available to script code	2553	# here we export the classes and methods available to script code
2056		2554
2057	=pod	2555	=pod
2058		2556
2059	The following fucntions and emthods are available within a safe environment:	2557	The following functions and methods are available within a safe environment:
2060		2558
2061	cf::object contr pay_amount pay_player map	2559	cf::object contr pay_amount pay_player map
2062	cf::object::player player	2560	cf::object::player player
2063	cf::player peaceful	2561	cf::player peaceful
2064	cf::map trigger	2562	cf::map trigger
…		…
2145	=back	2643	=back
2146		2644
2147	=cut	2645	=cut
2148		2646
2149	#############################################################################	2647	#############################################################################
		2648	# the server's init and main functions
2150		2649
2151	=head2 EXTENSION DATABASE SUPPORT	2650	sub load_facedata($) {
		2651	my ($path) = @_;
2152		2652
2153	Crossfire maintains a very simple database for extension use. It can	2653	warn "loading facedata from $path\n";
2154	currently store anything that can be serialised using Storable, which
2155	excludes objects.
2156		2654
2157	The parameter C<$family> should best start with the name of the extension	2655	my $facedata;
2158	using it, it should be unique.	2656	0 < aio_load $path, $facedata
		2657	or die "$path: $!";
2159		2658
2160	=over 4	2659	$facedata = Coro::Storable::thaw $facedata;
2161		2660
2162	=item $hashref = cf::db_get $family	2661	$facedata->{version} == 2
		2662	or cf::cleanup "$path: version mismatch, cannot proceed.";
2163		2663
2164	Return a hashref for use by the extension C<$family>, which can be
2165	modified. After modifications, you have to call C<cf::db_dirty> or
2166	C<cf::db_sync>.
2167
2168	=item $value = cf::db_get $family => $key
2169
2170	Returns a single value from the database
2171
2172	=item cf::db_put $family => $hashref
2173
2174	Stores the given family hashref into the database. Updates are delayed, if
2175	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2176
2177	=item cf::db_put $family => $key => $value
2178
2179	Stores the given C<$value> in the family hash. Updates are delayed, if you
2180	want the data to be synced to disk immediately, use C<cf::db_sync>.
2181
2182	=item cf::db_dirty
2183
2184	Marks the database as dirty, to be updated at a later time.
2185
2186	=item cf::db_sync
2187
2188	Immediately write the database to disk I<if it is dirty>.
2189
2190	=cut
2191
2192	our $DB;
2193
2194	{
2195	my $path = cf::localdir . "/database.pst";
2196
2197	sub db_load() {
2198	$DB = stat $path ? Storable::retrieve $path : { };
2199	}	2664	{
		2665	my $faces = $facedata->{faceinfo};
2200		2666
2201	my $pid;	2667	while (my ($face, $info) = each %$faces) {
2202		2668	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2203	sub db_save() {	2669	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2204	waitpid $pid, 0 if $pid;	2670	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2205	if (0 == ($pid = fork)) {	2671	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2206	$DB->{_meta}{version} = 1;	2672	Coro::cede;
2207	Storable::nstore $DB, "$path~";
2208	rename "$path~", $path;
2209	cf::_exit 0 if defined $pid;
2210	}
2211	}
2212
2213	my $dirty;
2214
2215	sub db_sync() {
2216	db_save if $dirty;
2217	undef $dirty;
2218	}
2219
2220	my $idle = Event->idle (
2221	reentrant => 0,
2222	min => 10,
2223	max => 20,
2224	repeat => 0,
2225	data => WF_AUTOCANCEL,
2226	cb => \&db_sync,
2227	);
2228
2229	sub db_dirty() {
2230	$dirty = 1;
2231	$idle->start;
2232	}
2233
2234	sub db_get($;$) {
2235	@_ >= 2
2236	? $DB->{$_[0]}{$_[1]}
2237	: ($DB->{$_[0]} ||= { })
2238	}
2239
2240	sub db_put($$;$) {
2241	if (@_ >= 3) {
2242	$DB->{$_[0]}{$_[1]} = $_[2];
2243	} else {
2244	$DB->{$_[0]} = $_[1];
2245	}
2246	db_dirty;
2247	}
2248
2249	cf::global->attach (
2250	prio => 10000,
2251	on_cleanup => sub {
2252	db_sync;
2253	},	2673	}
2254	);
2255	}
2256		2674
2257	#############################################################################	2675	while (my ($face, $info) = each %$faces) {
2258	# the server's main()	2676	next unless $info->{smooth};
		2677	my $idx = cf::face::find $face
		2678	or next;
		2679	if (my $smooth = cf::face::find $info->{smooth}) {
		2680	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2681	} else {
		2682	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2683	}
		2684	Coro::cede;
		2685	}
		2686	}
		2687
		2688	{
		2689	my $anims = $facedata->{animinfo};
		2690
		2691	while (my ($anim, $info) = each %$anims) {
		2692	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2693	Coro::cede;
		2694	}
		2695
		2696	cf::anim::invalidate_all; # d'oh
		2697	}
		2698
		2699	1
		2700	}
		2701
		2702	sub reload_regions {
		2703	load_resource_file "$MAPDIR/regions"
		2704	or die "unable to load regions file\n";
		2705	}
		2706
		2707	sub reload_facedata {
		2708	load_facedata "$DATADIR/facedata"
		2709	or die "unable to load facedata\n";
		2710	}
		2711
		2712	sub reload_archetypes {
		2713	load_resource_file "$DATADIR/archetypes"
		2714	or die "unable to load archetypes\n";
		2715	}
		2716
		2717	sub reload_treasures {
		2718	load_resource_file "$DATADIR/treasures"
		2719	or die "unable to load treasurelists\n";
		2720	}
		2721
		2722	sub reload_resources {
		2723	warn "reloading resource files...\n";
		2724
		2725	reload_regions;
		2726	reload_facedata;
		2727	#reload_archetypes;#d#
		2728	reload_archetypes;
		2729	reload_treasures;
		2730
		2731	warn "finished reloading resource files\n";
		2732	}
		2733
		2734	sub init {
		2735	reload_resources;
		2736	}
2259		2737
2260	sub cfg_load {	2738	sub cfg_load {
2261	open my $fh, "<:utf8", cf::confdir . "/config"	2739	open my $fh, "<:utf8", "$CONFDIR/config"
2262	or return;	2740	or return;
2263		2741
2264	local $/;	2742	local $/;
2265	*CFG = YAML::Syck::Load <$fh>;	2743	*CFG = YAML::Syck::Load <$fh>;
2266		2744
…		…
2286	Event::one_event;	2764	Event::one_event;
2287	})->prio (Coro::PRIO_MAX);	2765	})->prio (Coro::PRIO_MAX);
2288	};	2766	};
2289		2767
2290	cfg_load;	2768	cfg_load;
2291	db_load;	2769	db_init;
2292	load_extensions;	2770	load_extensions;
2293		2771
2294	$TICK_WATCHER->start;	2772	$TICK_WATCHER->start;
2295	Event::loop;	2773	Event::loop;
2296	}	2774	}
…		…
2311	},	2789	},
2312	);	2790	);
2313	}	2791	}
2314	}	2792	}
2315		2793
		2794	sub write_runtime {
		2795	my $runtime = "$LOCALDIR/runtime";
		2796
		2797	# first touch the runtime file to show we are still running:
		2798	# the fsync below can take a very very long time.
		2799
		2800	IO::AIO::aio_utime $runtime, undef, undef;
		2801
		2802	my $guard = cf::lock_acquire "write_runtime";
		2803
		2804	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2805	or return;
		2806
		2807	my $value = $cf::RUNTIME + 90 + 10;
		2808	# 10 is the runtime save interval, for a monotonic clock
		2809	# 60 allows for the watchdog to kill the server.
		2810
		2811	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2812	and return;
		2813
		2814	# always fsync - this file is important
		2815	aio_fsync $fh
		2816	and return;
		2817
		2818	# touch it again to show we are up-to-date
		2819	aio_utime $fh, undef, undef;
		2820
		2821	close $fh
		2822	or return;
		2823
		2824	aio_rename "$runtime~", $runtime
		2825	and return;
		2826
		2827	warn "runtime file written.\n";
		2828
		2829	1
		2830	}
		2831
2316	sub emergency_save() {	2832	sub emergency_save() {
2317	my $freeze_guard = cf::freeze_mainloop;	2833	my $freeze_guard = cf::freeze_mainloop;
2318		2834
2319	warn "enter emergency perl save\n";	2835	warn "enter emergency perl save\n";
2320		2836
…		…
2335	my $map = $cf::MAP{$path} or next;	2851	my $map = $cf::MAP{$path} or next;
2336	$map->valid or next;	2852	$map->valid or next;
2337	$map->save;	2853	$map->save;
2338	}	2854	}
2339	warn "end emergency map save\n";	2855	warn "end emergency map save\n";
		2856
		2857	warn "begin emergency database checkpoint\n";
		2858	BDB::db_env_txn_checkpoint $DB_ENV;
		2859	warn "end emergency database checkpoint\n";
2340	};	2860	};
2341		2861
2342	warn "leave emergency perl save\n";	2862	warn "leave emergency perl save\n";
2343	}	2863	}
2344		2864
		2865	sub post_cleanup {
		2866	my ($make_core) = @_;
		2867
		2868	warn Carp::longmess "post_cleanup backtrace"
		2869	if $make_core;
		2870	}
		2871
2345	sub reload() {	2872	sub do_reload_perl() {
2346	# can/must only be called in main	2873	# can/must only be called in main
2347	if ($Coro::current != $Coro::main) {	2874	if ($Coro::current != $Coro::main) {
2348	warn "can only reload from main coroutine";	2875	warn "can only reload from main coroutine";
2349	return;	2876	return;
2350	}	2877	}
2351		2878
2352	warn "reloading...";	2879	warn "reloading...";
2353		2880
2354	warn "cancelling server ticker";	2881	warn "entering sync_job";
2355	$TICK_WATCHER->cancel;
2356		2882
		2883	cf::sync_job {
		2884	cf::write_runtime; # external watchdog should not bark
2357	cf::emergency_save;	2885	cf::emergency_save;
		2886	cf::write_runtime; # external watchdog should not bark
2358		2887
2359	eval {	2888	warn "syncing database to disk";
		2889	BDB::db_env_txn_checkpoint $DB_ENV;
		2890
2360	# if anything goes wrong in here, we should simply crash as we already saved	2891	# if anything goes wrong in here, we should simply crash as we already saved
2361
2362	warn "syncing database to disk";
2363	cf::db_sync;
2364		2892
2365	warn "cancelling all WF_AUTOCANCEL watchers";	2893	warn "cancelling all WF_AUTOCANCEL watchers";
2366	for (Event::all_watchers) {	2894	for (Event::all_watchers) {
2367	$_->cancel if $_->data & WF_AUTOCANCEL;	2895	$_->cancel if $_->data & WF_AUTOCANCEL;
2368	}	2896	}
2369		2897
2370	warn "flushing outstanding aio requests";	2898	warn "flushing outstanding aio requests";
2371	for (;;) {	2899	for (;;) {
		2900	BDB::flush;
2372	IO::AIO::flush;	2901	IO::AIO::flush;
2373	Coro::cede;	2902	Coro::cede;
2374	last unless IO::AIO::nreqs;	2903	last unless IO::AIO::nreqs || BDB::nreqs;
2375	warn "iterate...";	2904	warn "iterate...";
2376	}	2905	}
		2906
		2907	++$RELOAD;
2377		2908
2378	warn "cancelling all extension coros";	2909	warn "cancelling all extension coros";
2379	$_->cancel for values %EXT_CORO;	2910	$_->cancel for values %EXT_CORO;
2380	%EXT_CORO = ();	2911	%EXT_CORO = ();
2381		2912
2382	warn "removing commands";	2913	warn "removing commands";
2383	%COMMAND = ();	2914	%COMMAND = ();
2384		2915
2385	warn "removing ext commands";	2916	warn "removing ext/exti commands";
2386	%EXTCMD = ();	2917	%EXTCMD = ();
		2918	%EXTICMD = ();
2387		2919
2388	warn "unloading/nuking all extensions";	2920	warn "unloading/nuking all extensions";
2389	for my $pkg (@EXTS) {	2921	for my $pkg (@EXTS) {
2390	warn "... unloading $pkg";	2922	warn "... unloading $pkg";
2391		2923
…		…
2421	Symbol::delete_package "safe::$_"	2953	Symbol::delete_package "safe::$_"
2422	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2954	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2423		2955
2424	warn "unloading cf.pm \"a bit\"";	2956	warn "unloading cf.pm \"a bit\"";
2425	delete $INC{"cf.pm"};	2957	delete $INC{"cf.pm"};
		2958	delete $INC{"cf/pod.pm"};
2426		2959
2427	# don't, removes xs symbols, too,	2960	# don't, removes xs symbols, too,
2428	# and global variables created in xs	2961	# and global variables created in xs
2429	#Symbol::delete_package __PACKAGE__;	2962	#Symbol::delete_package __PACKAGE__;
2430		2963
…		…
2434	require cf;	2967	require cf;
2435	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2968	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2436		2969
2437	warn "loading config and database again";	2970	warn "loading config and database again";
2438	cf::cfg_load;	2971	cf::cfg_load;
2439	cf::db_load;
2440		2972
2441	warn "loading extensions";	2973	warn "loading extensions";
2442	cf::load_extensions;	2974	cf::load_extensions;
2443		2975
2444	warn "reattaching attachments to objects/players";	2976	warn "reattaching attachments to objects/players";
2445	_global_reattach;	2977	_global_reattach; # objects, sockets
2446	warn "reattaching attachments to maps";	2978	warn "reattaching attachments to maps";
2447	reattach $_ for values %MAP;	2979	reattach $_ for values %MAP;
		2980	warn "reattaching attachments to players";
		2981	reattach $_ for values %PLAYER;
2448		2982
2449	warn "restarting server ticker";	2983	warn "leaving sync_job";
2450		2984
2451	$TICK_WATCHER->start;	2985	1
2452	};	2986	} or do {
2453
2454	if ($@) {
2455	warn $@;	2987	warn $@;
2456	warn "error while reloading, exiting.";	2988	warn "error while reloading, exiting.";
2457	exit 1;	2989	exit 1;
2458	}	2990	};
2459		2991
2460	warn "reloaded";	2992	warn "reloaded";
2461	};	2993	};
2462		2994
2463	our $RELOAD_WATCHER; # used only during reload	2995	our $RELOAD_WATCHER; # used only during reload
2464		2996
		2997	sub reload_perl() {
		2998	# doing reload synchronously and two reloads happen back-to-back,
		2999	# coro crashes during coro_state_free->destroy here.
		3000
		3001	$RELOAD_WATCHER ||= Event->timer (
		3002	reentrant => 0,
		3003	after => 0,
		3004	data => WF_AUTOCANCEL,
		3005	cb => sub {
		3006	do_reload_perl;
		3007	undef $RELOAD_WATCHER;
		3008	},
		3009	);
		3010	}
		3011
2465	register_command "reload" => sub {	3012	register_command "reload" => sub {
2466	my ($who, $arg) = @_;	3013	my ($who, $arg) = @_;
2467		3014
2468	if ($who->flag (FLAG_WIZ)) {	3015	if ($who->flag (FLAG_WIZ)) {
2469	$who->message ("reloading server.");	3016	$who->message ("reloading server.");
2470		3017	async { reload_perl };
2471	# doing reload synchronously and two reloads happen back-to-back,
2472	# coro crashes during coro_state_free->destroy here.
2473
2474	$RELOAD_WATCHER ||= Event->timer (
2475	reentrant => 0,
2476	after => 0,
2477	data => WF_AUTOCANCEL,
2478	cb => sub {
2479	reload;
2480	undef $RELOAD_WATCHER;
2481	},
2482	);
2483	}	3018	}
2484	};	3019	};
2485		3020
2486	unshift @INC, $LIBDIR;	3021	unshift @INC, $LIBDIR;
2487		3022
2488	my $bug_warning = 0;	3023	my $bug_warning = 0;
2489		3024
		3025	our @WAIT_FOR_TICK;
		3026	our @WAIT_FOR_TICK_BEGIN;
		3027
		3028	sub wait_for_tick {
		3029	return unless $TICK_WATCHER->is_active;
		3030	return if $Coro::current == $Coro::main;
		3031
		3032	my $signal = new Coro::Signal;
		3033	push @WAIT_FOR_TICK, $signal;
		3034	$signal->wait;
		3035	}
		3036
		3037	sub wait_for_tick_begin {
		3038	return unless $TICK_WATCHER->is_active;
		3039	return if $Coro::current == $Coro::main;
		3040
		3041	my $signal = new Coro::Signal;
		3042	push @WAIT_FOR_TICK_BEGIN, $signal;
		3043	$signal->wait;
		3044	}
		3045
		3046	my $min = 1e6;#d#
		3047	my $avg = 10;
2490	$TICK_WATCHER = Event->timer (	3048	$TICK_WATCHER = Event->timer (
2491	reentrant => 0,	3049	reentrant => 0,
2492	parked => 1,	3050	parked => 1,
2493	prio => 0,	3051	prio => 0,
2494	at => $NEXT_TICK || $TICK,	3052	at => $NEXT_TICK || $TICK,
…		…
2498	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3056	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2499	unless ++$bug_warning > 10;	3057	unless ++$bug_warning > 10;
2500	return;	3058	return;
2501	}	3059	}
2502		3060
2503	$NOW = Event::time;	3061	$NOW = $tick_start = Event::time;
2504		3062
2505	cf::server_tick; # one server iteration	3063	cf::server_tick; # one server iteration
		3064
		3065	0 && sync_job {#d#
		3066	for(1..10) {
		3067	my $t = Event::time;
		3068	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3069	or die;
		3070
		3071	$map->width (50);
		3072	$map->height (50);
		3073	$map->alloc;
		3074	$map->_load_objects ("/tmp/x.map", 1);
		3075	my $t = Event::time - $t;
		3076
		3077	#next unless $t < 0.0013;#d#
		3078	if ($t < $min) {
		3079	$min = $t;
		3080	}
		3081	$avg = $avg * 0.99 + $t * 0.01;
		3082	}
		3083	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3084	exit 0;
		3085	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3086	};
		3087
2506	$RUNTIME += $TICK;	3088	$RUNTIME += $TICK;
2507	$NEXT_TICK += $TICK;	3089	$NEXT_TICK += $TICK;
2508		3090
2509	$WAIT_FOR_TICK->broadcast;	3091	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2510	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3092	$NEXT_RUNTIME_WRITE = $NOW + 10;
2511		3093	Coro::async_pool {
2512	Event::sweep;	3094	write_runtime
2513	Coro::cede_notself;	3095	or warn "ERROR: unable to write runtime file: $!";
		3096	};
2514		3097	}
		3098
2515	# my $AFTER = Event::time;	3099	# my $AFTER = Event::time;
2516	# warn $AFTER - $NOW;#d#	3100	# warn $AFTER - $NOW;#d#
2517		3101
		3102	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3103	$sig->send;
		3104	}
		3105	while (my $sig = shift @WAIT_FOR_TICK) {
		3106	$sig->send;
		3107	}
		3108
		3109	$NOW = Event::time;
		3110
2518	# if we are delayed by four ticks or more, skip them all	3111	# if we are delayed by four ticks or more, skip them all
2519	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3112	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2520		3113
2521	$TICK_WATCHER->at ($NEXT_TICK);	3114	$TICK_WATCHER->at ($NEXT_TICK);
2522	$TICK_WATCHER->start;	3115	$TICK_WATCHER->start;
		3116
		3117	$LOAD = ($NOW - $tick_start) / $TICK;
		3118	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3119
		3120	_post_tick;
		3121
		3122
2523	},	3123	},
2524	);	3124	);
2525		3125
		3126	{
		3127	BDB::max_poll_time $TICK * 0.1;
		3128	$BDB_POLL_WATCHER = Event->io (
		3129	reentrant => 0,
		3130	fd => BDB::poll_fileno,
		3131	poll => 'r',
		3132	prio => 0,
		3133	data => WF_AUTOCANCEL,
		3134	cb => \&BDB::poll_cb,
		3135	);
		3136	BDB::min_parallel 8;
		3137
		3138	BDB::set_sync_prepare {
		3139	my $status;
		3140	my $current = $Coro::current;
		3141	(
		3142	sub {
		3143	$status = $!;
		3144	$current->ready; undef $current;
		3145	},
		3146	sub {
		3147	Coro::schedule while defined $current;
		3148	$! = $status;
		3149	},
		3150	)
		3151	};
		3152
		3153	unless ($DB_ENV) {
		3154	$DB_ENV = BDB::db_env_create;
		3155
		3156	cf::sync_job {
		3157	eval {
		3158	BDB::db_env_open
		3159	$DB_ENV,
		3160	$BDBDIR,
		3161	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3162	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3163	0666;
		3164
		3165	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3166
		3167	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3168	$DB_ENV->set_lk_detect;
		3169	};
		3170
		3171	cf::cleanup "db_env_open(db): $@" if $@;
		3172	};
		3173	}
		3174	}
		3175
		3176	{
		3177	IO::AIO::min_parallel 8;
		3178
		3179	undef $Coro::AIO::WATCHER;
2526	IO::AIO::max_poll_time $TICK * 0.1;	3180	IO::AIO::max_poll_time $TICK * 0.1;
2527
2528	undef $Coro::AIO::WATCHER;
2529	$AIO_POLL_WATCHER = Event->io (	3181	$AIO_POLL_WATCHER = Event->io (
2530	reentrant => 0,	3182	reentrant => 0,
		3183	data => WF_AUTOCANCEL,
2531	fd => IO::AIO::poll_fileno,	3184	fd => IO::AIO::poll_fileno,
2532	poll => 'r',	3185	poll => 'r',
2533	prio => 6,	3186	prio => 6,
2534	data => WF_AUTOCANCEL,
2535	cb => \&IO::AIO::poll_cb,	3187	cb => \&IO::AIO::poll_cb,
2536	);	3188	);
		3189	}
2537		3190
2538	$WRITE_RUNTIME_WATCHER = Event->timer (	3191	my $_log_backtrace;
2539	reentrant => 0,	3192
2540	data => WF_AUTOCANCEL,	3193	sub _log_backtrace {
2541	after => 1,	3194	my ($msg, @addr) = @_;
2542	interval => 10,	3195
2543	prio => 6, # keep it lowest so it acts like a watchdog	3196	$msg =~ s/\n//;
2544	cb => Coro::unblock_sub {	3197
2545	write_runtime	3198	# limit the # of concurrent backtraces
2546	or warn "ERROR: unable to write runtime file: $!";	3199	if ($_log_backtrace < 2) {
		3200	++$_log_backtrace;
		3201	async {
		3202	my @bt = fork_call {
		3203	@addr = map { sprintf "%x", $_ } @addr;
		3204	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3205	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3206	or die "addr2line: $!";
		3207
		3208	my @funcs;
		3209	my @res = <$fh>;
		3210	chomp for @res;
		3211	while (@res) {
		3212	my ($func, $line) = splice @res, 0, 2, ();
		3213	push @funcs, "[$func] $line";
		3214	}
		3215
		3216	@funcs
		3217	};
		3218
		3219	LOG llevInfo, "[ABT] $msg\n";
		3220	LOG llevInfo, "[ABT] $_\n" for @bt;
		3221	--$_log_backtrace;
		3222	};
		3223	} else {
		3224	LOG llevInfo, "[ABT] $msg\n";
		3225	LOG llevInfo, "[ABT] [suppressed]\n";
2547	},	3226	}
2548	);	3227	}
		3228
		3229	# load additional modules
		3230	use cf::pod;
2549		3231
2550	END { cf::emergency_save }	3232	END { cf::emergency_save }
2551		3233
2552	1	3234	1
2553		3235

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