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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 1.291 by root, Tue Jul 3 00:54:44 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->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) = @_;
…		…
856	cf::override;	1086	cf::override;
857	},	1087	},
858	on_extcmd => sub {	1088	on_extcmd => sub {
859	my ($pl, $buf) = @_;	1089	my ($pl, $buf) = @_;
860		1090
861	my $msg = eval { from_json $buf };	1091	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
862		1092
863	if (ref $msg) {	1093	if (ref $msg) {
864	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
865	if (my %reply = $cb->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
866	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
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<([^\>]*)>}
		1406	{
		1407	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1408	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1409	"")
		1410	[$self->{hintmode}]
		1411	}ge;
		1412
		1413	# create single paragraphs (very hackish)
		1414	s/(?<=\S)\n(?=\w)/ /g;
		1415
		1416	# compress some whitespace
		1417	1 while s/\s*\n\s*\n\s*/\n/;
		1418
		1419	$_
		1420	}
		1421
		1422	sub hintmode {
		1423	warn "hm<$_[0] $_[1]>\n";#d#
		1424	$_[0]{hintmode} = $_[1] if @_ > 1;
		1425	$_[0]{hintmode}
		1426	}
		1427
1091	=item $player->ext_reply ($msgid, $msgtype, %msg)	1428	=item $player->ext_reply ($msgid, %msg)
1092		1429
1093	Sends an ext reply to the player.	1430	Sends an ext reply to the player.
1094		1431
1095	=cut	1432	=cut
1096		1433
1097	sub ext_reply($$$%) {	1434	sub ext_reply($$%) {
1098	my ($self, $id, %msg) = @_;	1435	my ($self, $id, %msg) = @_;
1099		1436
1100	$msg{msgid} = $id;	1437	$msg{msgid} = $id;
1101		1438	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1102	$self->send ("ext " . cf::to_json \%msg);
1103	}	1439	}
1104		1440
1105	package cf;	1441	=item $player->ext_event ($type, %msg)
		1442
		1443	Sends an ext event to the client.
		1444
		1445	=cut
		1446
		1447	sub ext_event($$%) {
		1448	my ($self, $type, %msg) = @_;
		1449
		1450	$self->ns->ext_event ($type, %msg);
		1451	}
		1452
		1453	=head3 cf::region
		1454
		1455	=over 4
		1456
		1457	=cut
		1458
		1459	package cf::region;
		1460
		1461	=item cf::region::find_by_path $path
		1462
		1463	Tries to decuce the likely region for a map knowing only its path.
		1464
		1465	=cut
		1466
		1467	sub find_by_path($) {
		1468	my ($path) = @_;
		1469
		1470	my ($match, $specificity);
		1471
		1472	for my $region (list) {
		1473	if ($region->match && $path =~ $region->match) {
		1474	($match, $specificity) = ($region, $region->specificity)
		1475	if $region->specificity > $specificity;
		1476	}
		1477	}
		1478
		1479	$match
		1480	}
1106		1481
1107	=back	1482	=back
1108
1109		1483
1110	=head3 cf::map	1484	=head3 cf::map
1111		1485
1112	=over 4	1486	=over 4
1113		1487
…		…
1168	my ($self, $merge) = @_;	1542	my ($self, $merge) = @_;
1169		1543
1170	# we have to keep some variables in memory intact	1544	# we have to keep some variables in memory intact
1171	local $self->{path};	1545	local $self->{path};
1172	local $self->{load_path};	1546	local $self->{load_path};
1173	local $self->{deny_save};
1174	local $self->{deny_reset};
1175		1547
1176	$self->SUPER::thawer_merge ($merge);	1548	$self->SUPER::thawer_merge ($merge);
1177	}	1549	}
1178		1550
1179	sub normalise {	1551	sub normalise {
…		…
1251		1623
1252	# the original (read-only) location	1624	# the original (read-only) location
1253	sub load_path {	1625	sub load_path {
1254	my ($self) = @_;	1626	my ($self) = @_;
1255		1627
1256	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1628	"$MAPDIR/$self->{path}.map"
1257	}	1629	}
1258		1630
1259	# the temporary/swap location	1631	# the temporary/swap location
1260	sub save_path {	1632	sub save_path {
1261	my ($self) = @_;	1633	my ($self) = @_;
1262		1634
1263	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1635	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1264	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1636	"$TMPDIR/$path.map"
1265	}	1637	}
1266		1638
1267	# the unique path, undef == no special unique path	1639	# the unique path, undef == no special unique path
1268	sub uniq_path {	1640	sub uniq_path {
1269	my ($self) = @_;	1641	my ($self) = @_;
1270		1642
1271	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1643	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1272	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1644	"$UNIQUEDIR/$path"
1273	}	1645	}
1274		1646
1275	# and all this just because we cannot iterate over	1647	# and all this just because we cannot iterate over
1276	# all maps in C++...	1648	# all maps in C++...
1277	sub change_all_map_light {	1649	sub change_all_map_light {
…		…
1279		1651
1280	$_->change_map_light ($change)	1652	$_->change_map_light ($change)
1281	for grep $_->outdoor, values %cf::MAP;	1653	for grep $_->outdoor, values %cf::MAP;
1282	}	1654	}
1283		1655
		1656	sub decay_objects {
		1657	my ($self) = @_;
		1658
		1659	return if $self->{deny_reset};
		1660
		1661	$self->do_decay_objects;
		1662	}
		1663
1284	sub unlink_save {	1664	sub unlink_save {
1285	my ($self) = @_;	1665	my ($self) = @_;
1286		1666
1287	utf8::encode (my $save = $self->save_path);	1667	utf8::encode (my $save = $self->save_path);
1288	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1668	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1291		1671
1292	sub load_header_from($) {	1672	sub load_header_from($) {
1293	my ($self, $path) = @_;	1673	my ($self, $path) = @_;
1294		1674
1295	utf8::encode $path;	1675	utf8::encode $path;
1296	aio_open $path, O_RDONLY, 0	1676	#aio_open $path, O_RDONLY, 0
1297	or return;	1677	# or return;
1298		1678
1299	$self->_load_header ($path)	1679	$self->_load_header ($path)
1300	or return;	1680	or return;
1301		1681
1302	$self->{load_path} = $path;	1682	$self->{load_path} = $path;
…		…
1344	$self->load_header_orig	1724	$self->load_header_orig
1345	or return;	1725	or return;
1346	$self->prepare_orig;	1726	$self->prepare_orig;
1347	}	1727	}
1348		1728
		1729	$self->{deny_reset} = 1
		1730	if $self->no_reset;
		1731
		1732	$self->default_region (cf::region::find_by_path $self->{path})
		1733	unless $self->default_region;
		1734
1349	1	1735	1
1350	}	1736	}
1351		1737
1352	sub find;	1738	sub find;
1353	sub find {	1739	sub find {
…		…
1365	$map->{last_save} = $cf::RUNTIME;	1751	$map->{last_save} = $cf::RUNTIME;
1366		1752
1367	$map->load_header	1753	$map->load_header
1368	or return;	1754	or return;
1369		1755
1370	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1756	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1371	# doing this can freeze the server in a sync job, obviously	1757	# doing this can freeze the server in a sync job, obviously
1372	#$cf::WAIT_FOR_TICK->wait;	1758	#$cf::WAIT_FOR_TICK->wait;
1373	$map->reset;	1759	$map->reset;
1374	undef $guard;	1760	undef $guard;
1375	return find $path;	1761	return find $path;
…		…
1386	my ($self) = @_;	1772	my ($self) = @_;
1387		1773
1388	local $self->{deny_reset} = 1; # loading can take a long time	1774	local $self->{deny_reset} = 1; # loading can take a long time
1389		1775
1390	my $path = $self->{path};	1776	my $path = $self->{path};
		1777
		1778	{
1391	my $guard = cf::lock_acquire "map_load:$path";	1779	my $guard = cf::lock_acquire "map_load:$path";
1392		1780
1393	return if $self->in_memory != cf::MAP_SWAPPED;	1781	return if $self->in_memory != cf::MAP_SWAPPED;
1394		1782
1395	$self->in_memory (cf::MAP_LOADING);	1783	$self->in_memory (cf::MAP_LOADING);
1396		1784
1397	$self->alloc;	1785	$self->alloc;
1398		1786
1399	$self->pre_load;	1787	$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;	1788	Coro::cede;
1425	$self->set_darkness_map;	1789
		1790	$self->_load_objects ($self->{load_path}, 1)
		1791	or return;
		1792
		1793	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1794	if delete $self->{load_original};
		1795
		1796	if (my $uniq = $self->uniq_path) {
		1797	utf8::encode $uniq;
		1798	if (aio_open $uniq, O_RDONLY, 0) {
		1799	$self->clear_unique_items;
		1800	$self->_load_objects ($uniq, 0);
		1801	}
		1802	}
		1803
		1804	Coro::cede;
		1805	# now do the right thing for maps
		1806	$self->link_multipart_objects;
1426	$self->difficulty ($self->estimate_difficulty)	1807	$self->difficulty ($self->estimate_difficulty)
1427	unless $self->difficulty;	1808	unless $self->difficulty;
1428	Coro::cede;	1809	Coro::cede;
		1810
		1811	unless ($self->{deny_activate}) {
		1812	$self->decay_objects;
		1813	$self->fix_auto_apply;
		1814	$self->update_buttons;
		1815	Coro::cede;
		1816	$self->set_darkness_map;
		1817	Coro::cede;
1429	$self->activate;	1818	$self->activate;
		1819	}
		1820
		1821	$self->in_memory (cf::MAP_IN_MEMORY);
1430	}	1822	}
1431		1823
1432	$self->post_load;	1824	$self->post_load;
1433
1434	$self->in_memory (cf::MAP_IN_MEMORY);
1435	}	1825	}
1436		1826
1437	sub customise_for {	1827	sub customise_for {
1438	my ($self, $ob) = @_;	1828	my ($self, $ob) = @_;
1439		1829
1440	return find "~" . $ob->name . "/" . $self->{path}	1830	return find "~" . $ob->name . "/" . $self->{path}
1441	if $self->per_player;	1831	if $self->per_player;
		1832
		1833	# return find "?party/" . $ob->name . "/" . $self->{path}
		1834	# if $self->per_party;
1442		1835
1443	$self	1836	$self
1444	}	1837	}
1445		1838
1446	# find and load all maps in the 3x3 area around a map	1839	# find and load all maps in the 3x3 area around a map
…		…
1557		1950
1558	sub reset_at {	1951	sub reset_at {
1559	my ($self) = @_;	1952	my ($self) = @_;
1560		1953
1561	# TODO: safety, remove and allow resettable per-player maps	1954	# 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};	1955	return 1e99 if $self->{deny_reset};
1564		1956
1565	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1957	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1566	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1958	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1567		1959
…		…
1578	my ($self) = @_;	1970	my ($self) = @_;
1579		1971
1580	my $lock = cf::lock_acquire "map_data:$self->{path}";	1972	my $lock = cf::lock_acquire "map_data:$self->{path}";
1581		1973
1582	return if $self->players;	1974	return if $self->players;
1583	return if $self->isa ("ext::map_per_player");#d#
1584		1975
1585	warn "resetting map ", $self->path;#d#	1976	warn "resetting map ", $self->path;
		1977
		1978	$self->in_memory (cf::MAP_SWAPPED);
		1979
		1980	# need to save uniques path
		1981	unless ($self->{deny_save}) {
		1982	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1983
		1984	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1985	if $uniq;
		1986	}
1586		1987
1587	delete $cf::MAP{$self->path};	1988	delete $cf::MAP{$self->path};
1588		1989
1589	$self->in_memory (cf::MAP_SWAPPED);
1590	$self->clear;	1990	$self->clear;
1591		1991
1592	$_->clear_links_to ($self) for values %cf::MAP;	1992	$_->clear_links_to ($self) for values %cf::MAP;
1593		1993
1594	$self->unlink_save;	1994	$self->unlink_save;
…		…
1613	$cf::MAP{$self->path} = $self;	2013	$cf::MAP{$self->path} = $self;
1614		2014
1615	$self->reset; # polite request, might not happen	2015	$self->reset; # polite request, might not happen
1616	}	2016	}
1617		2017
		2018	=item $maps = cf::map::tmp_maps
		2019
		2020	Returns an arrayref with all map paths of currently instantiated and saved
		2021	maps. May block.
		2022
		2023	=cut
		2024
		2025	sub tmp_maps() {
		2026	[
		2027	map {
		2028	utf8::decode $_;
		2029	/\.map$/
		2030	? normalise $_
		2031	: ()
		2032	} @{ aio_readdir $TMPDIR or [] }
		2033	]
		2034	}
		2035
		2036	=item $maps = cf::map::random_maps
		2037
		2038	Returns an arrayref with all map paths of currently instantiated and saved
		2039	random maps. May block.
		2040
		2041	=cut
		2042
		2043	sub random_maps() {
		2044	[
		2045	map {
		2046	utf8::decode $_;
		2047	/\.map$/
		2048	? normalise "?random/$_"
		2049	: ()
		2050	} @{ aio_readdir $RANDOMDIR or [] }
		2051	]
		2052	}
		2053
1618	=item cf::map::unique_maps	2054	=item cf::map::unique_maps
1619		2055
1620	Returns an arrayref of paths of all shared maps that have	2056	Returns an arrayref of paths of all shared maps that have
1621	instantiated unique items. May block.	2057	instantiated unique items. May block.
1622		2058
1623	=cut	2059	=cut
1624		2060
1625	sub unique_maps() {	2061	sub unique_maps() {
1626	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2062	[
1627	or return;	2063	map {
1628
1629	my @paths;
1630
1631	for (@$files) {
1632	utf8::decode $_;	2064	utf8::decode $_;
1633	next if /\.pst$/;	2065	/\.map$/
1634	next unless /^$PATH_SEP/o;	2066	? normalise $_
1635		2067	: ()
1636	push @paths, cf::map::normalise $_;	2068	} @{ aio_readdir $UNIQUEDIR or [] }
1637	}	2069	]
1638
1639	\@paths
1640	}	2070	}
1641		2071
1642	package cf;	2072	package cf;
1643		2073
1644	=back	2074	=back
…		…
1690		2120
1691	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2121	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1692		2122
1693	if ($self->{record_replies}) {	2123	if ($self->{record_replies}) {
1694	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2124	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2125
1695	} else {	2126	} else {
		2127	my $pl = $self->contr;
		2128
		2129	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2130	my $diag = $pl->{npc_dialog};
		2131	$diag->{pl}->ext_reply (
		2132	$diag->{id},
		2133	msgtype => "reply",
		2134	msg => $diag->{pl}->expand_cfpod ($msg),
		2135	add_topics => []
		2136	);
		2137
		2138	} else {
1696	$msg = $npc->name . " says: $msg" if $npc;	2139	$msg = $npc->name . " says: $msg" if $npc;
1697	$self->message ($msg, $flags);	2140	$self->message ($msg, $flags);
		2141	}
1698	}	2142	}
1699	}	2143	}
1700		2144
1701	=item $player_object->may ("access")	2145	=item $player_object->may ("access")
1702		2146
…		…
1750	$self->deactivate_recursive;	2194	$self->deactivate_recursive;
1751		2195
1752	return if UNIVERSAL::isa $self->map, "ext::map_link";	2196	return if UNIVERSAL::isa $self->map, "ext::map_link";
1753		2197
1754	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2198	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1755	if $self->map;	2199	if $self->map && $self->map->{path} ne "{link}";
1756		2200
1757	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2201	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1758	}	2202	}
1759		2203
1760	sub cf::object::player::leave_link {	2204	sub cf::object::player::leave_link {
1761	my ($self, $map, $x, $y) = @_;	2205	my ($self, $map, $x, $y) = @_;
		2206
		2207	return unless $self->contr->active;
1762		2208
1763	my $link_pos = delete $self->{_link_pos};	2209	my $link_pos = delete $self->{_link_pos};
1764		2210
1765	unless ($map) {	2211	unless ($map) {
1766	# restore original map position	2212	# restore original map position
…		…
1784	$map->load;	2230	$map->load;
1785	$map->load_diag;	2231	$map->load_diag;
1786		2232
1787	return unless $self->contr->active;	2233	return unless $self->contr->active;
1788	$self->activate_recursive;	2234	$self->activate_recursive;
		2235
		2236	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1789	$self->enter_map ($map, $x, $y);	2237	$self->enter_map ($map, $x, $y);
1790	}	2238	}
1791		2239
1792	cf::player->attach (
1793	on_logout => sub {
1794	my ($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)	2240	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1825		2241
		2242	Moves the player to the given map-path and coordinates by first freezing
		2243	her, loading and preparing them map, calling the provided $check callback
		2244	that has to return the map if sucecssful, and then unfreezes the player on
		2245	the new (success) or old (failed) map position.
		2246
1826	=cut	2247	=cut
		2248
		2249	our $GOTOGEN;
1827		2250
1828	sub cf::object::player::goto {	2251	sub cf::object::player::goto {
1829	my ($self, $path, $x, $y) = @_;	2252	my ($self, $path, $x, $y, $check) = @_;
		2253
		2254	# do generation counting so two concurrent goto's will be executed in-order
		2255	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1830		2256
1831	$self->enter_link;	2257	$self->enter_link;
1832		2258
1833	(async {	2259	(async {
1834	my $map = eval {	2260	my $map = eval {
1835	my $map = cf::map::find $path;	2261	my $map = cf::map::find $path;
		2262
		2263	if ($map) {
1836	$map = $map->customise_for ($self) if $map;	2264	$map = $map->customise_for ($self);
		2265	$map = $check->($map) if $check && $map;
		2266	} else {
		2267	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2268	}
		2269
1837	$map	2270	$map
		2271	};
		2272
		2273	if ($@) {
		2274	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2275	LOG llevError | logBacktrace, Carp::longmess $@;
1838	} or	2276	}
1839	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1840		2277
		2278	if ($gen == $self->{_goto_generation}) {
		2279	delete $self->{_goto_generation};
1841	$self->leave_link ($map, $x, $y);	2280	$self->leave_link ($map, $x, $y);
		2281	}
1842	})->prio (1);	2282	})->prio (1);
1843	}	2283	}
1844		2284
1845	=item $player_object->enter_exit ($exit_object)	2285	=item $player_object->enter_exit ($exit_object)
1846		2286
…		…
1885		2325
1886	$rmp->{random_seed} ||= $exit->random_seed;	2326	$rmp->{random_seed} ||= $exit->random_seed;
1887		2327
1888	my $data = cf::to_json $rmp;	2328	my $data = cf::to_json $rmp;
1889	my $md5 = Digest::MD5::md5_hex $data;	2329	my $md5 = Digest::MD5::md5_hex $data;
1890	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2330	my $meta = "$RANDOMDIR/$md5.meta";
1891		2331
1892	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2332	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1893	aio_write $fh, 0, (length $data), $data, 0;	2333	aio_write $fh, 0, (length $data), $data, 0;
1894	undef $fh;	2334	undef $fh;
1895	aio_rename "$meta~", $meta;	2335	aio_rename "$meta~", $meta;
…		…
1904		2344
1905	return unless $self->type == cf::PLAYER;	2345	return unless $self->type == cf::PLAYER;
1906		2346
1907	if ($exit->slaying eq "/!") {	2347	if ($exit->slaying eq "/!") {
1908	#TODO: this should de-fi-ni-te-ly not be a sync-job	2348	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2349	# the problem is that $exit might not survive long enough
		2350	# so it needs to be done right now, right here
1909	cf::sync_job { prepare_random_map $exit };	2351	cf::sync_job { prepare_random_map $exit };
1910	}	2352	}
1911		2353
1912	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2354	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1913	my $hp = $exit->stats->hp;	2355	my $hp = $exit->stats->hp;
…		…
1921	$self->goto ($slaying, $hp, $sp);	2363	$self->goto ($slaying, $hp, $sp);
1922		2364
1923	1;	2365	1;
1924	}) {	2366	}) {
1925	$self->message ("Something went wrong deep within the crossfire server. "	2367	$self->message ("Something went wrong deep within the crossfire server. "
1926	. "I'll try to bring you back to the map you were before. "	2368	. "I'll try to bring you back to the map you were before. "
1927	. "Please report this to the dungeon master!",	2369	. "Please report this to the dungeon master!",
1928	cf::NDI_UNIQUE | cf::NDI_RED);	2370	cf::NDI_UNIQUE | cf::NDI_RED);
1929		2371
1930	warn "ERROR in enter_exit: $@";	2372	warn "ERROR in enter_exit: $@";
1931	$self->leave_link;	2373	$self->leave_link;
1932	}	2374	}
1933	})->prio (1);	2375	})->prio (1);
…		…
1946		2388
1947	sub cf::client::send_drawinfo {	2389	sub cf::client::send_drawinfo {
1948	my ($self, $text, $flags) = @_;	2390	my ($self, $text, $flags) = @_;
1949		2391
1950	utf8::encode $text;	2392	utf8::encode $text;
1951	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2393	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1952	}	2394	}
1953		2395
		2396	=item $client->send_msg ($color, $type, $msg, [extra...])
		2397
		2398	Send a drawinfo or msg packet to the client, formatting the msg for the
		2399	client if neccessary. C<$type> should be a string identifying the type of
		2400	the message, with C<log> being the default. If C<$color> is negative, suppress
		2401	the message unless the client supports the msg packet.
		2402
		2403	=cut
		2404
		2405	sub cf::client::send_msg {
		2406	my ($self, $color, $type, $msg, @extra) = @_;
		2407
		2408	$msg = $self->pl->expand_cfpod ($msg);
		2409
		2410	if ($self->can_msg) {
		2411	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2412	} else {
		2413	# replace some tags by gcfclient-compatible ones
		2414	for ($msg) {
		2415	1 while
		2416	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2417	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2418	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2419	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2420	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2421	}
		2422
		2423	if ($color >= 0) {
		2424	if (0 && $msg =~ /\[/) {
		2425	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2426	} else {
		2427	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2428	$self->send_packet ("drawinfo $color $msg")
		2429	}
		2430	}
		2431	}
		2432	}
		2433
		2434	=item $client->ext_event ($type, %msg)
		2435
		2436	Sends an ext event to the client.
		2437
		2438	=cut
		2439
		2440	sub cf::client::ext_event($$%) {
		2441	my ($self, $type, %msg) = @_;
		2442
		2443	$msg{msgtype} = "event_$type";
		2444	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2445	}
1954		2446
1955	=item $success = $client->query ($flags, "text", \&cb)	2447	=item $success = $client->query ($flags, "text", \&cb)
1956		2448
1957	Queues a query to the client, calling the given callback with	2449	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>,	2450	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>.	2451	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1960		2452
1961	Queries can fail, so check the return code. Or don't, as queries will become	2453	Queries can fail, so check the return code. Or don't, as queries will
1962	reliable at some point in the future.	2454	become reliable at some point in the future.
1963		2455
1964	=cut	2456	=cut
1965		2457
1966	sub cf::client::query {	2458	sub cf::client::query {
1967	my ($self, $flags, $text, $cb) = @_;	2459	my ($self, $flags, $text, $cb) = @_;
…		…
1975	utf8::encode $text;	2467	utf8::encode $text;
1976	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2468	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1977		2469
1978	$self->send_packet ($self->{query_queue}[0][0])	2470	$self->send_packet ($self->{query_queue}[0][0])
1979	if @{ $self->{query_queue} } == 1;	2471	if @{ $self->{query_queue} } == 1;
		2472
		2473	1
1980	}	2474	}
1981		2475
1982	cf::client->attach (	2476	cf::client->attach (
		2477	on_connect => sub {
		2478	my ($ns) = @_;
		2479
		2480	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2481	},
1983	on_reply => sub {	2482	on_reply => sub {
1984	my ($ns, $msg) = @_;	2483	my ($ns, $msg) = @_;
1985		2484
1986	# this weird shuffling is so that direct followup queries	2485	# this weird shuffling is so that direct followup queries
1987	# get handled first	2486	# get handled first
1988	my $queue = delete $ns->{query_queue}	2487	my $queue = delete $ns->{query_queue}
1989	or return; # be conservative, not sure how that can happen, but we saw a crash here	2488	or return; # be conservative, not sure how that can happen, but we saw a crash here
1990		2489
1991	(shift @$queue)->[1]->($msg);	2490	(shift @$queue)->[1]->($msg);
		2491	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1992		2492
1993	push @{ $ns->{query_queue} }, @$queue;	2493	push @{ $ns->{query_queue} }, @$queue;
1994		2494
1995	if (@{ $ns->{query_queue} } == @$queue) {	2495	if (@{ $ns->{query_queue} } == @$queue) {
1996	if (@$queue) {	2496	if (@$queue) {
…		…
1998	} else {	2498	} else {
1999	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2499	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2000	}	2500	}
2001	}	2501	}
2002	},	2502	},
		2503	on_exticmd => sub {
		2504	my ($ns, $buf) = @_;
		2505
		2506	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2507
		2508	if (ref $msg) {
		2509	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2510	if (my %reply = $cb->($ns, $msg)) {
		2511	$reply{msgid} = $msg->{msgid};
		2512	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2513	}
		2514	}
		2515	} else {
		2516	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2517	}
		2518
		2519	cf::override;
		2520	},
2003	);	2521	);
2004		2522
2005	=item $client->async (\&cb)	2523	=item $client->async (\&cb)
2006		2524
2007	Create a new coroutine, running the specified callback. The coroutine will	2525	Create a new coroutine, running the specified callback. The coroutine will
…		…
2054		2572
2055	# here we export the classes and methods available to script code	2573	# here we export the classes and methods available to script code
2056		2574
2057	=pod	2575	=pod
2058		2576
2059	The following fucntions and emthods are available within a safe environment:	2577	The following functions and methods are available within a safe environment:
2060		2578
2061	cf::object contr pay_amount pay_player map	2579	cf::object contr pay_amount pay_player map
2062	cf::object::player player	2580	cf::object::player player
2063	cf::player peaceful	2581	cf::player peaceful
2064	cf::map trigger	2582	cf::map trigger
…		…
2145	=back	2663	=back
2146		2664
2147	=cut	2665	=cut
2148		2666
2149	#############################################################################	2667	#############################################################################
		2668	# the server's init and main functions
2150		2669
2151	=head2 EXTENSION DATABASE SUPPORT	2670	sub load_facedata($) {
		2671	my ($path) = @_;
2152		2672
2153	Crossfire maintains a very simple database for extension use. It can	2673	warn "loading facedata from $path\n";
2154	currently store anything that can be serialised using Storable, which
2155	excludes objects.
2156		2674
2157	The parameter C<$family> should best start with the name of the extension	2675	my $facedata;
2158	using it, it should be unique.	2676	0 < aio_load $path, $facedata
		2677	or die "$path: $!";
2159		2678
2160	=over 4	2679	$facedata = Coro::Storable::thaw $facedata;
2161		2680
2162	=item $hashref = cf::db_get $family	2681	$facedata->{version} == 2
		2682	or cf::cleanup "$path: version mismatch, cannot proceed.";
2163		2683
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	}	2684	{
		2685	my $faces = $facedata->{faceinfo};
2200		2686
2201	my $pid;	2687	while (my ($face, $info) = each %$faces) {
2202		2688	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2203	sub db_save() {	2689	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2204	waitpid $pid, 0 if $pid;	2690	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2205	if (0 == ($pid = fork)) {	2691	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2206	$DB->{_meta}{version} = 1;	2692	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]} = $_[1];
2245	}
2246	db_dirty;
2247	}
2248
2249	cf::global->attach (
2250	prio => 10000,
2251	on_cleanup => sub {
2252	db_sync;
2253	},	2693	}
2254	);
2255	}
2256		2694
2257	#############################################################################	2695	while (my ($face, $info) = each %$faces) {
2258	# the server's main()	2696	next unless $info->{smooth};
		2697	my $idx = cf::face::find $face
		2698	or next;
		2699	if (my $smooth = cf::face::find $info->{smooth}) {
		2700	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2701	} else {
		2702	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2703	}
		2704	Coro::cede;
		2705	}
		2706	}
		2707
		2708	{
		2709	my $anims = $facedata->{animinfo};
		2710
		2711	while (my ($anim, $info) = each %$anims) {
		2712	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2713	Coro::cede;
		2714	}
		2715
		2716	cf::anim::invalidate_all; # d'oh
		2717	}
		2718
		2719	1
		2720	}
		2721
		2722	sub reload_regions {
		2723	load_resource_file "$MAPDIR/regions"
		2724	or die "unable to load regions file\n";
		2725	}
		2726
		2727	sub reload_facedata {
		2728	load_facedata "$DATADIR/facedata"
		2729	or die "unable to load facedata\n";
		2730	}
		2731
		2732	sub reload_archetypes {
		2733	load_resource_file "$DATADIR/archetypes"
		2734	or die "unable to load archetypes\n";
		2735	#d# NEED to laod twice to resolve forward references
		2736	# this really needs to be done in an extra post-pass
		2737	# (which needs to be synchronous, so solve it differently)
		2738	load_resource_file "$DATADIR/archetypes"
		2739	or die "unable to load archetypes\n";
		2740	}
		2741
		2742	sub reload_treasures {
		2743	load_resource_file "$DATADIR/treasures"
		2744	or die "unable to load treasurelists\n";
		2745	}
		2746
		2747	sub reload_resources {
		2748	warn "reloading resource files...\n";
		2749
		2750	reload_regions;
		2751	reload_facedata;
		2752	#reload_archetypes;#d#
		2753	reload_archetypes;
		2754	reload_treasures;
		2755
		2756	warn "finished reloading resource files\n";
		2757	}
		2758
		2759	sub init {
		2760	reload_resources;
		2761	}
2259		2762
2260	sub cfg_load {	2763	sub cfg_load {
2261	open my $fh, "<:utf8", cf::confdir . "/config"	2764	open my $fh, "<:utf8", "$CONFDIR/config"
2262	or return;	2765	or return;
2263		2766
2264	local $/;	2767	local $/;
2265	*CFG = YAML::Syck::Load <$fh>;	2768	*CFG = YAML::Syck::Load <$fh>;
2266		2769
…		…
2286	Event::one_event;	2789	Event::one_event;
2287	})->prio (Coro::PRIO_MAX);	2790	})->prio (Coro::PRIO_MAX);
2288	};	2791	};
2289		2792
2290	cfg_load;	2793	cfg_load;
2291	db_load;	2794	db_init;
2292	load_extensions;	2795	load_extensions;
2293		2796
2294	$TICK_WATCHER->start;	2797	$TICK_WATCHER->start;
2295	Event::loop;	2798	Event::loop;
2296	}	2799	}
…		…
2311	},	2814	},
2312	);	2815	);
2313	}	2816	}
2314	}	2817	}
2315		2818
		2819	sub write_runtime {
		2820	my $runtime = "$LOCALDIR/runtime";
		2821
		2822	# first touch the runtime file to show we are still running:
		2823	# the fsync below can take a very very long time.
		2824
		2825	IO::AIO::aio_utime $runtime, undef, undef;
		2826
		2827	my $guard = cf::lock_acquire "write_runtime";
		2828
		2829	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2830	or return;
		2831
		2832	my $value = $cf::RUNTIME + 90 + 10;
		2833	# 10 is the runtime save interval, for a monotonic clock
		2834	# 60 allows for the watchdog to kill the server.
		2835
		2836	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2837	and return;
		2838
		2839	# always fsync - this file is important
		2840	aio_fsync $fh
		2841	and return;
		2842
		2843	# touch it again to show we are up-to-date
		2844	aio_utime $fh, undef, undef;
		2845
		2846	close $fh
		2847	or return;
		2848
		2849	aio_rename "$runtime~", $runtime
		2850	and return;
		2851
		2852	warn "runtime file written.\n";
		2853
		2854	1
		2855	}
		2856
2316	sub emergency_save() {	2857	sub emergency_save() {
2317	my $freeze_guard = cf::freeze_mainloop;	2858	my $freeze_guard = cf::freeze_mainloop;
2318		2859
2319	warn "enter emergency perl save\n";	2860	warn "enter emergency perl save\n";
2320		2861
…		…
2335	my $map = $cf::MAP{$path} or next;	2876	my $map = $cf::MAP{$path} or next;
2336	$map->valid or next;	2877	$map->valid or next;
2337	$map->save;	2878	$map->save;
2338	}	2879	}
2339	warn "end emergency map save\n";	2880	warn "end emergency map save\n";
		2881
		2882	warn "begin emergency database checkpoint\n";
		2883	BDB::db_env_txn_checkpoint $DB_ENV;
		2884	warn "end emergency database checkpoint\n";
2340	};	2885	};
2341		2886
2342	warn "leave emergency perl save\n";	2887	warn "leave emergency perl save\n";
2343	}	2888	}
2344		2889
		2890	sub post_cleanup {
		2891	my ($make_core) = @_;
		2892
		2893	warn Carp::longmess "post_cleanup backtrace"
		2894	if $make_core;
		2895	}
		2896
2345	sub reload() {	2897	sub do_reload_perl() {
2346	# can/must only be called in main	2898	# can/must only be called in main
2347	if ($Coro::current != $Coro::main) {	2899	if ($Coro::current != $Coro::main) {
2348	warn "can only reload from main coroutine";	2900	warn "can only reload from main coroutine";
2349	return;	2901	return;
2350	}	2902	}
2351		2903
2352	warn "reloading...";	2904	warn "reloading...";
2353		2905
2354	warn "cancelling server ticker";	2906	warn "entering sync_job";
2355	$TICK_WATCHER->cancel;
2356		2907
		2908	cf::sync_job {
		2909	cf::write_runtime; # external watchdog should not bark
2357	cf::emergency_save;	2910	cf::emergency_save;
		2911	cf::write_runtime; # external watchdog should not bark
2358		2912
2359	eval {	2913	warn "syncing database to disk";
		2914	BDB::db_env_txn_checkpoint $DB_ENV;
		2915
2360	# if anything goes wrong in here, we should simply crash as we already saved	2916	# 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		2917
2365	warn "cancelling all WF_AUTOCANCEL watchers";	2918	warn "cancelling all WF_AUTOCANCEL watchers";
2366	for (Event::all_watchers) {	2919	for (Event::all_watchers) {
2367	$_->cancel if $_->data & WF_AUTOCANCEL;	2920	$_->cancel if $_->data & WF_AUTOCANCEL;
2368	}	2921	}
2369		2922
2370	warn "flushing outstanding aio requests";	2923	warn "flushing outstanding aio requests";
2371	for (;;) {	2924	for (;;) {
		2925	BDB::flush;
2372	IO::AIO::flush;	2926	IO::AIO::flush;
2373	Coro::cede;	2927	Coro::cede;
2374	last unless IO::AIO::nreqs;	2928	last unless IO::AIO::nreqs || BDB::nreqs;
2375	warn "iterate...";	2929	warn "iterate...";
2376	}	2930	}
		2931
		2932	++$RELOAD;
2377		2933
2378	warn "cancelling all extension coros";	2934	warn "cancelling all extension coros";
2379	$_->cancel for values %EXT_CORO;	2935	$_->cancel for values %EXT_CORO;
2380	%EXT_CORO = ();	2936	%EXT_CORO = ();
2381		2937
2382	warn "removing commands";	2938	warn "removing commands";
2383	%COMMAND = ();	2939	%COMMAND = ();
2384		2940
2385	warn "removing ext commands";	2941	warn "removing ext/exti commands";
2386	%EXTCMD = ();	2942	%EXTCMD = ();
		2943	%EXTICMD = ();
2387		2944
2388	warn "unloading/nuking all extensions";	2945	warn "unloading/nuking all extensions";
2389	for my $pkg (@EXTS) {	2946	for my $pkg (@EXTS) {
2390	warn "... unloading $pkg";	2947	warn "... unloading $pkg";
2391		2948
…		…
2421	Symbol::delete_package "safe::$_"	2978	Symbol::delete_package "safe::$_"
2422	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2979	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2423		2980
2424	warn "unloading cf.pm \"a bit\"";	2981	warn "unloading cf.pm \"a bit\"";
2425	delete $INC{"cf.pm"};	2982	delete $INC{"cf.pm"};
		2983	delete $INC{"cf/pod.pm"};
2426		2984
2427	# don't, removes xs symbols, too,	2985	# don't, removes xs symbols, too,
2428	# and global variables created in xs	2986	# and global variables created in xs
2429	#Symbol::delete_package __PACKAGE__;	2987	#Symbol::delete_package __PACKAGE__;
2430		2988
…		…
2434	require cf;	2992	require cf;
2435	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2993	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2436		2994
2437	warn "loading config and database again";	2995	warn "loading config and database again";
2438	cf::cfg_load;	2996	cf::cfg_load;
2439	cf::db_load;
2440		2997
2441	warn "loading extensions";	2998	warn "loading extensions";
2442	cf::load_extensions;	2999	cf::load_extensions;
2443		3000
2444	warn "reattaching attachments to objects/players";	3001	warn "reattaching attachments to objects/players";
2445	_global_reattach;	3002	_global_reattach; # objects, sockets
2446	warn "reattaching attachments to maps";	3003	warn "reattaching attachments to maps";
2447	reattach $_ for values %MAP;	3004	reattach $_ for values %MAP;
		3005	warn "reattaching attachments to players";
		3006	reattach $_ for values %PLAYER;
2448		3007
2449	warn "restarting server ticker";	3008	warn "leaving sync_job";
2450		3009
2451	$TICK_WATCHER->start;	3010	1
2452	};	3011	} or do {
2453
2454	if ($@) {
2455	warn $@;	3012	warn $@;
2456	warn "error while reloading, exiting.";	3013	warn "error while reloading, exiting.";
2457	exit 1;	3014	exit 1;
2458	}	3015	};
2459		3016
2460	warn "reloaded";	3017	warn "reloaded";
2461	};	3018	};
2462		3019
2463	our $RELOAD_WATCHER; # used only during reload	3020	our $RELOAD_WATCHER; # used only during reload
2464		3021
		3022	sub reload_perl() {
		3023	# doing reload synchronously and two reloads happen back-to-back,
		3024	# coro crashes during coro_state_free->destroy here.
		3025
		3026	$RELOAD_WATCHER ||= Event->timer (
		3027	reentrant => 0,
		3028	after => 0,
		3029	data => WF_AUTOCANCEL,
		3030	cb => sub {
		3031	do_reload_perl;
		3032	undef $RELOAD_WATCHER;
		3033	},
		3034	);
		3035	}
		3036
2465	register_command "reload" => sub {	3037	register_command "reload" => sub {
2466	my ($who, $arg) = @_;	3038	my ($who, $arg) = @_;
2467		3039
2468	if ($who->flag (FLAG_WIZ)) {	3040	if ($who->flag (FLAG_WIZ)) {
2469	$who->message ("reloading server.");	3041	$who->message ("reloading server.");
2470		3042	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	}	3043	}
2484	};	3044	};
2485		3045
2486	unshift @INC, $LIBDIR;	3046	unshift @INC, $LIBDIR;
2487		3047
2488	my $bug_warning = 0;	3048	my $bug_warning = 0;
2489		3049
		3050	our @WAIT_FOR_TICK;
		3051	our @WAIT_FOR_TICK_BEGIN;
		3052
		3053	sub wait_for_tick {
		3054	return unless $TICK_WATCHER->is_active;
		3055	return if $Coro::current == $Coro::main;
		3056
		3057	my $signal = new Coro::Signal;
		3058	push @WAIT_FOR_TICK, $signal;
		3059	$signal->wait;
		3060	}
		3061
		3062	sub wait_for_tick_begin {
		3063	return unless $TICK_WATCHER->is_active;
		3064	return if $Coro::current == $Coro::main;
		3065
		3066	my $signal = new Coro::Signal;
		3067	push @WAIT_FOR_TICK_BEGIN, $signal;
		3068	$signal->wait;
		3069	}
		3070
		3071	my $min = 1e6;#d#
		3072	my $avg = 10;
2490	$TICK_WATCHER = Event->timer (	3073	$TICK_WATCHER = Event->timer (
2491	reentrant => 0,	3074	reentrant => 0,
2492	parked => 1,	3075	parked => 1,
2493	prio => 0,	3076	prio => 0,
2494	at => $NEXT_TICK || $TICK,	3077	at => $NEXT_TICK || $TICK,
…		…
2498	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3081	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2499	unless ++$bug_warning > 10;	3082	unless ++$bug_warning > 10;
2500	return;	3083	return;
2501	}	3084	}
2502		3085
2503	$NOW = Event::time;	3086	$NOW = $tick_start = Event::time;
2504		3087
2505	cf::server_tick; # one server iteration	3088	cf::server_tick; # one server iteration
		3089
		3090	0 && sync_job {#d#
		3091	for(1..10) {
		3092	my $t = Event::time;
		3093	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3094	or die;
		3095
		3096	$map->width (50);
		3097	$map->height (50);
		3098	$map->alloc;
		3099	$map->_load_objects ("/tmp/x.map", 1);
		3100	my $t = Event::time - $t;
		3101
		3102	#next unless $t < 0.0013;#d#
		3103	if ($t < $min) {
		3104	$min = $t;
		3105	}
		3106	$avg = $avg * 0.99 + $t * 0.01;
		3107	}
		3108	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3109	exit 0;
		3110	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3111	};
		3112
2506	$RUNTIME += $TICK;	3113	$RUNTIME += $TICK;
2507	$NEXT_TICK += $TICK;	3114	$NEXT_TICK += $TICK;
2508		3115
2509	$WAIT_FOR_TICK->broadcast;	3116	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2510	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3117	$NEXT_RUNTIME_WRITE = $NOW + 10;
2511		3118	Coro::async_pool {
2512	Event::sweep;	3119	write_runtime
2513	Coro::cede_notself;	3120	or warn "ERROR: unable to write runtime file: $!";
		3121	};
2514		3122	}
		3123
2515	# my $AFTER = Event::time;	3124	# my $AFTER = Event::time;
2516	# warn $AFTER - $NOW;#d#	3125	# warn $AFTER - $NOW;#d#
2517		3126
		3127	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3128	$sig->send;
		3129	}
		3130	while (my $sig = shift @WAIT_FOR_TICK) {
		3131	$sig->send;
		3132	}
		3133
		3134	$NOW = Event::time;
		3135
2518	# if we are delayed by four ticks or more, skip them all	3136	# if we are delayed by four ticks or more, skip them all
2519	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3137	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2520		3138
2521	$TICK_WATCHER->at ($NEXT_TICK);	3139	$TICK_WATCHER->at ($NEXT_TICK);
2522	$TICK_WATCHER->start;	3140	$TICK_WATCHER->start;
		3141
		3142	$LOAD = ($NOW - $tick_start) / $TICK;
		3143	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3144
		3145	_post_tick;
		3146
		3147
2523	},	3148	},
2524	);	3149	);
2525		3150
		3151	{
		3152	BDB::max_poll_time $TICK * 0.1;
		3153	$BDB_POLL_WATCHER = Event->io (
		3154	reentrant => 0,
		3155	fd => BDB::poll_fileno,
		3156	poll => 'r',
		3157	prio => 0,
		3158	data => WF_AUTOCANCEL,
		3159	cb => \&BDB::poll_cb,
		3160	);
		3161	BDB::min_parallel 8;
		3162
		3163	BDB::set_sync_prepare {
		3164	my $status;
		3165	my $current = $Coro::current;
		3166	(
		3167	sub {
		3168	$status = $!;
		3169	$current->ready; undef $current;
		3170	},
		3171	sub {
		3172	Coro::schedule while defined $current;
		3173	$! = $status;
		3174	},
		3175	)
		3176	};
		3177
		3178	unless ($DB_ENV) {
		3179	$DB_ENV = BDB::db_env_create;
		3180
		3181	cf::sync_job {
		3182	eval {
		3183	BDB::db_env_open
		3184	$DB_ENV,
		3185	$BDBDIR,
		3186	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3187	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3188	0666;
		3189
		3190	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3191
		3192	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3193	$DB_ENV->set_lk_detect;
		3194	};
		3195
		3196	cf::cleanup "db_env_open(db): $@" if $@;
		3197	};
		3198	}
		3199	}
		3200
		3201	{
		3202	IO::AIO::min_parallel 8;
		3203
		3204	undef $Coro::AIO::WATCHER;
2526	IO::AIO::max_poll_time $TICK * 0.1;	3205	IO::AIO::max_poll_time $TICK * 0.1;
2527
2528	undef $Coro::AIO::WATCHER;
2529	$AIO_POLL_WATCHER = Event->io (	3206	$AIO_POLL_WATCHER = Event->io (
2530	reentrant => 0,	3207	reentrant => 0,
		3208	data => WF_AUTOCANCEL,
2531	fd => IO::AIO::poll_fileno,	3209	fd => IO::AIO::poll_fileno,
2532	poll => 'r',	3210	poll => 'r',
2533	prio => 6,	3211	prio => 6,
2534	data => WF_AUTOCANCEL,
2535	cb => \&IO::AIO::poll_cb,	3212	cb => \&IO::AIO::poll_cb,
2536	);	3213	);
		3214	}
2537		3215
2538	$WRITE_RUNTIME_WATCHER = Event->timer (	3216	my $_log_backtrace;
2539	reentrant => 0,	3217
2540	data => WF_AUTOCANCEL,	3218	sub _log_backtrace {
2541	after => 1,	3219	my ($msg, @addr) = @_;
2542	interval => 10,	3220
2543	prio => 6, # keep it lowest so it acts like a watchdog	3221	$msg =~ s/\n//;
2544	cb => Coro::unblock_sub {	3222
2545	write_runtime	3223	# limit the # of concurrent backtraces
2546	or warn "ERROR: unable to write runtime file: $!";	3224	if ($_log_backtrace < 2) {
		3225	++$_log_backtrace;
		3226	async {
		3227	my @bt = fork_call {
		3228	@addr = map { sprintf "%x", $_ } @addr;
		3229	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3230	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3231	or die "addr2line: $!";
		3232
		3233	my @funcs;
		3234	my @res = <$fh>;
		3235	chomp for @res;
		3236	while (@res) {
		3237	my ($func, $line) = splice @res, 0, 2, ();
		3238	push @funcs, "[$func] $line";
		3239	}
		3240
		3241	@funcs
		3242	};
		3243
		3244	LOG llevInfo, "[ABT] $msg\n";
		3245	LOG llevInfo, "[ABT] $_\n" for @bt;
		3246	--$_log_backtrace;
		3247	};
		3248	} else {
		3249	LOG llevInfo, "[ABT] $msg\n";
		3250	LOG llevInfo, "[ABT] [suppressed]\n";
2547	},	3251	}
2548	);	3252	}
		3253
		3254	# load additional modules
		3255	use cf::pod;
2549		3256
2550	END { cf::emergency_save }	3257	END { cf::emergency_save }
2551		3258
2552	1	3259	1
2553		3260

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