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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.195 by root, Fri Jan 26 20:59:57 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;
		115
		116	sub cf::map::normalise;
87		117
88	#############################################################################	118	#############################################################################
89		119
90	=head2 GLOBAL VARIABLES	120	=head2 GLOBAL VARIABLES
91		121
…		…
98	=item $cf::RUNTIME	128	=item $cf::RUNTIME
99		129
100	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
101	every server tick.	131	every server tick.
102		132
103	=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
104		136
105	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
106	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.
107		141
108	=item $cf::NOW	142	=item $cf::NOW
109		143
110	The time of the last (current) server tick.	144	The time of the last (current) server tick.
111		145
112	=item $cf::TICK	146	=item $cf::TICK
113		147
114	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.
115		159
116	=item %cf::CFG	160	=item %cf::CFG
117		161
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
119	from wherever your confdir points to.	163	from wherever your confdir points to.
120		164
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	165	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		166
123	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
124	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
125	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.
126	window of cpu time available, or simply to synchronise to the server tick.
127		170
128	=back	171	=back
129		172
130	=cut	173	=cut
131		174
132	BEGIN {	175	BEGIN {
133	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	177	my $msg = join "", @_;
135	utf8::encode $msg;
136		178
137	$msg .= "\n"	179	$msg .= "\n"
138	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
139		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
140	LOG llevError, $msg;	185	LOG llevError, $msg;
141	};	186	};
142	}	187	}
143		188
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@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';
149	@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)
150		196
151	# 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
152	# within the Safe compartment.	198	# within the Safe compartment.
153	for my $pkg (qw(	199	for my $pkg (qw(
154	cf::global cf::attachable	200	cf::global cf::attachable
…		…
162	}	208	}
163		209
164	$Event::DIED = sub {	210	$Event::DIED = sub {
165	warn "error in event callback: @_";	211	warn "error in event callback: @_";
166	};	212	};
		213
		214	#############################################################################
167		215
168	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
169		217
170	=over 4	218	=over 4
171		219
…		…
190	$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;
191	$d	239	$d
192	} || "[unable to dump $_[0]: '$@']";	240	} || "[unable to dump $_[0]: '$@']";
193	}	241	}
194		242
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
198		244
199	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
200		246
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
209		248
210	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
211		250
212	=cut	251	=cut
213		252
214	sub to_json($) {	253	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	254
216	JSON::Syck::Dump $_[0]	255	sub to_json ($) { $json_coder->encode ($_[0]) }
217	}	256	sub from_json ($) { $json_coder->decode ($_[0]) }
218		257
219	=item cf::lock_wait $string	258	=item cf::lock_wait $string
220		259
221	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
222		261
…		…
228	returned.	267	returned.
229		268
230	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
231	uses map_find and cf::map::load uses map_load).	270	uses map_find and cf::map::load uses map_load).
232		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
		275
233	=cut	276	=cut
234		277
235	our %LOCK;	278	our %LOCK;
236		279
237	sub lock_wait($) {	280	sub lock_wait($) {
…		…
256	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
258	}	301	}
259	}	302	}
260		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
		308	}
		309
261	sub freeze_mainloop {	310	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	311	return unless $TICK_WATCHER->is_active;
263		312
264	my $guard = Coro::guard {	313	my $guard = Coro::guard {
265	$TICK_WATCHER->start;	314	$TICK_WATCHER->start;
266	$WRITE_RUNTIME_WATCHER->start;
267	};	315	};
268	$WRITE_RUNTIME_WATCHER->stop;
269	$TICK_WATCHER->stop;	316	$TICK_WATCHER->stop;
270	$guard	317	$guard
271	}	318	}
272		319
273	=item cf::async { BLOCK }	320	=item cf::async { BLOCK }
…		…
280		327
281	BEGIN { *async = \&Coro::async_pool }	328	BEGIN { *async = \&Coro::async_pool }
282		329
283	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
284		331
285	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
288		336
289	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
292	fast or be very important.	340	fast or be very important.
…		…
295		343
296	sub sync_job(&) {	344	sub sync_job(&) {
297	my ($job) = @_;	345	my ($job) = @_;
298		346
299	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
300	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
302		352
303	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
304	# (but this is cancel-safe)	354	# (but this is cancel-safe)
…		…
315		365
316	while ($busy) {	366	while ($busy) {
317	Coro::cede or Event::one_event;	367	Coro::cede or Event::one_event;
318	}	368	}
319		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
320	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
321	} else {	378	} else {
322	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
323		380
324	$job->()	381	$job->()
…		…
343	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
344		401
345	$coro	402	$coro
346	}	403	}
347		404
348	sub write_runtime {	405	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		406
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	407	Executes the given code block with the given arguments in a seperate
352	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.
353		411
354	my $value = $cf::RUNTIME + 90 + 10;	412	=cut
355	# 10 is the runtime save interval, for a monotonic clock
356	# 60 allows for the watchdog to kill the server.
357		413
358	(aio_write $fh, 0, (length $value), $value, 0) <= 0	414	sub fork_call(&@) {
359	and return;	415	my ($cb, @args) = @_;
360		416
361	aio_fsync $fh	417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
362	and return;	418	# or die "socketpair: $!";
		419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
363		421
		422	if (my $pid = fork) {
364	close $fh	423	close $fh2;
365	or return;
366		424
367	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
368	and return;	426	$res = Coro::Storable::thaw $res;
369		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
370	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		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 });
371	}	574	}
372		575
373	=back	576	=back
374		577
375	=cut	578	=cut
…		…
382	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")
383	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
384		587
385	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>
386	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
387	crossfire+).	590	Crossfire TRT).
388		591
389	=over 4	592	=over 4
390		593
391	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
392		595
…		…
555	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
556		759
557	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
558	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
559	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
560	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
561		764
562	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
563	my $pkg = shift @arg;	766	my $pkg = shift @arg;
564		767
565	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
594	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
595	}	798	}
596		799
597	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
598	} else {	801	} else {
599	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
600	}	803	}
601		804
602	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
603	}	806	}
604		807
…		…
606	if (ref $_[0]) {	809	if (ref $_[0]) {
607	_object_attach @_;	810	_object_attach @_;
608	} else {	811	} else {
609	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
610	}	813	}
		814	_recalc_want;
611	};	815	};
612		816
613	# all those should be optimised	817	# all those should be optimised
614	sub cf::attachable::detach {	818	sub cf::attachable::detach {
615	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
618	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
619	reattach ($obj);	823	reattach ($obj);
620	} else {	824	} else {
621	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
622	}	826	}
		827	_recalc_want;
623	};	828	};
624		829
625	sub cf::attachable::attached {	830	sub cf::attachable::attached {
626	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
627		832
…		…
750	$filename, length $$rdata, scalar @$objs;	955	$filename, length $$rdata, scalar @$objs;
751		956
752	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	957	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
753	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
754	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	959	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
755	aio_fsync $fh;	960	aio_fsync $fh if $cf::USE_FSYNC;
756	close $fh;	961	close $fh;
757		962
758	if (@$objs) {	963	if (@$objs) {
759	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) {
760	chmod SAVE_MODE, $fh;	965	chmod SAVE_MODE, $fh;
761	my $data = Storable::nfreeze { version => 1, objs => $objs };	966	my $data = Storable::nfreeze { version => 1, objs => $objs };
762	aio_write $fh, 0, (length $data), $data, 0;	967	aio_write $fh, 0, (length $data), $data, 0;
763	aio_fsync $fh;	968	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	969	close $fh;
765	aio_rename "$filename.pst~", "$filename.pst";	970	aio_rename "$filename.pst~", "$filename.pst";
766	}	971	}
767	} else {	972	} else {
768	aio_unlink "$filename.pst";	973	aio_unlink "$filename.pst";
…		…
800	or return;	1005	or return;
801	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
802	}	1007	}
803		1008
804	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
805	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
806	return ($data, $av);	1011	return ($data, $av);
807	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
808		1019
809	#############################################################################	1020	#############################################################################
810	# command handling &c	1021	# command handling &c
811		1022
812	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1037	}
827		1038
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
829		1040
830	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.
831		1046
832	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
833	called.	1048	called.
834		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
835	=cut	1061	=cut
836		1062
837	sub register_extcmd {	1063	sub register_extcmd {
838	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
839		1065
840	$EXTCMD{$name} = $cb;	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
841	}	1073	}
842		1074
843	cf::player->attach (	1075	cf::player->attach (
844	on_command => sub {	1076	on_command => sub {
845	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
854	cf::override;	1086	cf::override;
855	},	1087	},
856	on_extcmd => sub {	1088	on_extcmd => sub {
857	my ($pl, $buf) = @_;	1089	my ($pl, $buf) = @_;
858		1090
859	my $msg = eval { from_json $buf };	1091	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
860		1092
861	if (ref $msg) {	1093	if (ref $msg) {
862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
863	if (my %reply = $cb->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
864	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
870		1102
871	cf::override;	1103	cf::override;
872	},	1104	},
873	);	1105	);
874		1106
875	sub load_extension {
876	my ($path) = @_;
877
878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
879	my $base = $1;
880	my $pkg = $1;
881	$pkg =~ s/[^[:word:]]/_/g;
882	$pkg = "ext::$pkg";
883
884	warn "... loading '$path' into '$pkg'\n";
885
886	open my $fh, "<:utf8", $path
887	or die "$path: $!";
888
889	my $source =
890	"package $pkg; use strict; use utf8;\n"
891	. "#line 1 \"$path\"\n{\n"
892	. (do { local $/; <$fh> })
893	. "\n};\n1";
894
895	unless (eval $source) {
896	my $msg = $@ ? "$path: $@\n"
897	: "extension disabled.\n";
898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
899	warn $@;
900	warn "mandatory extension failed to load, exiting.\n";
901	exit 1;
902	}
903	die $@;
904	}
905
906	push @EXTS, $pkg;
907	}
908
909	sub load_extensions {	1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
910	for my $ext (<$LIBDIR/*.ext>) {	1111	for my $path (<$LIBDIR/*.ext>) {
911	next unless -r $ext;	1112	next unless -r $path;
912	eval {	1113
913	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;
914	1	1171	}
915	} or warn "$ext not loaded: $@";	1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
916	}	1177	};
917	}	1178	}
918		1179
919	#############################################################################	1180	#############################################################################
920		1181
		1182	=back
		1183
921	=head2 CORE EXTENSIONS	1184	=head2 CORE EXTENSIONS
922		1185
923	Functions and methods that extend core crossfire objects.	1186	Functions and methods that extend core crossfire objects.
924		1187
925	=cut	1188	=cut
…		…
937	Returns the given player object, loading it if necessary (might block).	1200	Returns the given player object, loading it if necessary (might block).
938		1201
939	=cut	1202	=cut
940		1203
941	sub playerdir($) {	1204	sub playerdir($) {
942	cf::localdir	1205	"$PLAYERDIR/"
943	. "/"
944	. cf::playerdir
945	. "/"
946	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1206	. (ref $_[0] ? $_[0]->ob->name : $_[0])
947	}	1207	}
948		1208
949	sub path($) {	1209	sub path($) {
950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1210	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
951		1211
952	(playerdir $login) . "/$login.pl"	1212	(playerdir $login) . "/playerdata"
953	}	1213	}
954		1214
955	sub find_active($) {	1215	sub find_active($) {
956	$cf::PLAYER{$_[0]}	1216	$cf::PLAYER{$_[0]}
957	and $cf::PLAYER{$_[0]}->active	1217	and $cf::PLAYER{$_[0]}->active
…		…
970	my $login = $_[0];	1230	my $login = $_[0];
971		1231
972	my $guard = cf::lock_acquire "user_find:$login";	1232	my $guard = cf::lock_acquire "user_find:$login";
973		1233
974	$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
975	my $pl = load_pl path $login	1242	my $pl = load_pl path $login
976	or return;	1243	or return;
977	$cf::PLAYER{$login} = $pl	1244	$cf::PLAYER{$login} = $pl
978	}	1245	}
979	}	1246	}
…		…
1016		1283
1017	=cut	1284	=cut
1018		1285
1019	sub quit_character {	1286	sub quit_character {
1020	my ($pl) = @_;	1287	my ($pl) = @_;
		1288
		1289	my $name = $pl->ob->name;
1021		1290
1022	$pl->{deny_save} = 1;	1291	$pl->{deny_save} = 1;
1023	$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
1024		1293
1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1294	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1030	my $path = playerdir $pl;	1299	my $path = playerdir $pl;
1031	my $temp = "$path~$cf::RUNTIME~deleting~";	1300	my $temp = "$path~$cf::RUNTIME~deleting~";
1032	aio_rename $path, $temp;	1301	aio_rename $path, $temp;
1033	delete $cf::PLAYER{$pl->ob->name};	1302	delete $cf::PLAYER{$pl->ob->name};
1034	$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
1035	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;
1036	}	1325	}
1037		1326
1038	=item cf::player::list_logins	1327	=item cf::player::list_logins
1039		1328
1040	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
1041	while and may block, so not sync_job-capable, ever.	1330	while and may block, so not sync_job-capable, ever.
1042		1331
1043	=cut	1332	=cut
1044		1333
1045	sub list_logins {	1334	sub list_logins {
1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1335	my $dirs = aio_readdir $PLAYERDIR
1047	or return [];	1336	or return [];
1048		1337
1049	my @logins;	1338	my @logins;
1050		1339
1051	for my $login (@$dirs) {	1340	for my $login (@$dirs) {
…		…
1068	=cut	1357	=cut
1069		1358
1070	sub maps($) {	1359	sub maps($) {
1071	my ($pl) = @_;	1360	my ($pl) = @_;
1072		1361
		1362	$pl = ref $pl ? $pl->ob->name : $pl;
		1363
1073	my $files = aio_readdir playerdir $pl	1364	my $files = aio_readdir playerdir $pl
1074	or return;	1365	or return;
1075		1366
1076	my @paths;	1367	my @paths;
1077		1368
1078	for (@$files) {	1369	for (@$files) {
1079	utf8::decode $_;	1370	utf8::decode $_;
1080	next if /\.(?:pl|pst)$/;	1371	next if /\.(?:pl|pst)$/;
1081	next unless /^$PATH_SEP/o;	1372	next unless /^$PATH_SEP/o;
1082		1373
1083	s/\.map$//;	1374	push @paths, cf::map::normalise "~$pl/$_";
1084	push @paths, "~" . $pl->ob->name . "/" . $_;
1085	}	1375	}
1086		1376
1087	\@paths	1377	\@paths
1088	}	1378	}
1089		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
1090	=item $player->ext_reply ($msgid, $msgtype, %msg)	1428	=item $player->ext_reply ($msgid, %msg)
1091		1429
1092	Sends an ext reply to the player.	1430	Sends an ext reply to the player.
1093		1431
1094	=cut	1432	=cut
1095		1433
1096	sub ext_reply($$$%) {	1434	sub ext_reply($$%) {
1097	my ($self, $id, %msg) = @_;	1435	my ($self, $id, %msg) = @_;
1098		1436
1099	$msg{msgid} = $id;	1437	$msg{msgid} = $id;
1100		1438	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1101	$self->send ("ext " . cf::to_json \%msg);
1102	}	1439	}
1103		1440
1104	package cf;	1441	=item $player->ext_event ($type, %msg)
		1442
		1443	Sends an ext event to the client.
		1444
		1445	=cut
		1446
		1447	sub ext_event($$%) {
		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	$match
		1480	}
1105		1481
1106	=back	1482	=back
1107
1108		1483
1109	=head3 cf::map	1484	=head3 cf::map
1110		1485
1111	=over 4	1486	=over 4
1112		1487
…		…
1167	my ($self, $merge) = @_;	1542	my ($self, $merge) = @_;
1168		1543
1169	# we have to keep some variables in memory intact	1544	# we have to keep some variables in memory intact
1170	local $self->{path};	1545	local $self->{path};
1171	local $self->{load_path};	1546	local $self->{load_path};
1172	local $self->{deny_save};
1173	local $self->{deny_reset};
1174		1547
1175	$self->SUPER::thawer_merge ($merge);	1548	$self->SUPER::thawer_merge ($merge);
1176	}	1549	}
1177		1550
1178	sub normalise {	1551	sub normalise {
1179	my ($path, $base) = @_;	1552	my ($path, $base) = @_;
1180		1553
1181	$path = "$path"; # make sure its a string	1554	$path = "$path"; # make sure its a string
		1555
		1556	$path =~ s/\.map$//;
1182		1557
1183	# map plan:	1558	# map plan:
1184	#	1559	#
1185	# /! non-realised random map exit (special hack!)	1560	# /! non-realised random map exit (special hack!)
1186	# {... are special paths that are not being touched	1561	# {... are special paths that are not being touched
…		…
1248		1623
1249	# the original (read-only) location	1624	# the original (read-only) location
1250	sub load_path {	1625	sub load_path {
1251	my ($self) = @_;	1626	my ($self) = @_;
1252		1627
1253	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1628	"$MAPDIR/$self->{path}.map"
1254	}	1629	}
1255		1630
1256	# the temporary/swap location	1631	# the temporary/swap location
1257	sub save_path {	1632	sub save_path {
1258	my ($self) = @_;	1633	my ($self) = @_;
1259		1634
1260	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1635	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1261	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1636	"$TMPDIR/$path.map"
1262	}	1637	}
1263		1638
1264	# the unique path, undef == no special unique path	1639	# the unique path, undef == no special unique path
1265	sub uniq_path {	1640	sub uniq_path {
1266	my ($self) = @_;	1641	my ($self) = @_;
1267		1642
1268	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1643	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1269	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1644	"$UNIQUEDIR/$path"
1270	}	1645	}
1271		1646
1272	# and all this just because we cannot iterate over	1647	# and all this just because we cannot iterate over
1273	# all maps in C++...	1648	# all maps in C++...
1274	sub change_all_map_light {	1649	sub change_all_map_light {
…		…
1276		1651
1277	$_->change_map_light ($change)	1652	$_->change_map_light ($change)
1278	for grep $_->outdoor, values %cf::MAP;	1653	for grep $_->outdoor, values %cf::MAP;
1279	}	1654	}
1280		1655
		1656	sub decay_objects {
		1657	my ($self) = @_;
		1658
		1659	return if $self->{deny_reset};
		1660
		1661	$self->do_decay_objects;
		1662	}
		1663
1281	sub unlink_save {	1664	sub unlink_save {
1282	my ($self) = @_;	1665	my ($self) = @_;
1283		1666
1284	utf8::encode (my $save = $self->save_path);	1667	utf8::encode (my $save = $self->save_path);
1285	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1668	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1288		1671
1289	sub load_header_from($) {	1672	sub load_header_from($) {
1290	my ($self, $path) = @_;	1673	my ($self, $path) = @_;
1291		1674
1292	utf8::encode $path;	1675	utf8::encode $path;
1293	aio_open $path, O_RDONLY, 0	1676	#aio_open $path, O_RDONLY, 0
1294	or return;	1677	# or return;
1295		1678
1296	$self->_load_header ($path)	1679	$self->_load_header ($path)
1297	or return;	1680	or return;
1298		1681
1299	$self->{load_path} = $path;	1682	$self->{load_path} = $path;
…		…
1341	$self->load_header_orig	1724	$self->load_header_orig
1342	or return;	1725	or return;
1343	$self->prepare_orig;	1726	$self->prepare_orig;
1344	}	1727	}
1345		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
1346	1	1735	1
1347	}	1736	}
1348		1737
1349	sub find;	1738	sub find;
1350	sub find {	1739	sub find {
…		…
1362	$map->{last_save} = $cf::RUNTIME;	1751	$map->{last_save} = $cf::RUNTIME;
1363		1752
1364	$map->load_header	1753	$map->load_header
1365	or return;	1754	or return;
1366		1755
1367	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1756	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1368	# doing this can freeze the server in a sync job, obviously	1757	# doing this can freeze the server in a sync job, obviously
1369	#$cf::WAIT_FOR_TICK->wait;	1758	#$cf::WAIT_FOR_TICK->wait;
1370	$map->reset;	1759	$map->reset;
1371	undef $guard;	1760	undef $guard;
1372	return find $path;	1761	return find $path;
…		…
1380	sub post_load { }	1769	sub post_load { }
1381		1770
1382	sub load {	1771	sub load {
1383	my ($self) = @_;	1772	my ($self) = @_;
1384		1773
		1774	local $self->{deny_reset} = 1; # loading can take a long time
		1775
1385	my $path = $self->{path};	1776	my $path = $self->{path};
		1777
		1778	{
1386	my $guard = cf::lock_acquire "map_load:$path";	1779	my $guard = cf::lock_acquire "map_load:$path";
1387		1780
1388	return if $self->in_memory != cf::MAP_SWAPPED;	1781	return if $self->in_memory != cf::MAP_SWAPPED;
1389		1782
1390	$self->in_memory (cf::MAP_LOADING);	1783	$self->in_memory (cf::MAP_LOADING);
1391		1784
1392	$self->alloc;	1785	$self->alloc;
1393		1786
1394	$self->pre_load;	1787	$self->pre_load;
1395
1396	$self->_load_objects ($self->{load_path}, 1)
1397	or return;
1398
1399	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1400	if delete $self->{load_original};
1401
1402	if (my $uniq = $self->uniq_path) {
1403	utf8::encode $uniq;
1404	if (aio_open $uniq, O_RDONLY, 0) {
1405	$self->clear_unique_items;
1406	$self->_load_objects ($uniq, 0);
1407	}
1408	}
1409
1410	Coro::cede;
1411
1412	# now do the right thing for maps
1413	$self->link_multipart_objects;
1414
1415	unless ($self->{deny_activate}) {
1416	$self->decay_objects;
1417	$self->fix_auto_apply;
1418	$self->update_buttons;
1419	Coro::cede;	1788	Coro::cede;
1420	$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;
1421	$self->difficulty ($self->estimate_difficulty)	1807	$self->difficulty ($self->estimate_difficulty)
1422	unless $self->difficulty;	1808	unless $self->difficulty;
1423	Coro::cede;	1809	Coro::cede;
		1810
		1811	unless ($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;
1424	$self->activate;	1818	$self->activate;
		1819	}
		1820
		1821	$self->in_memory (cf::MAP_IN_MEMORY);
1425	}	1822	}
1426		1823
1427	$self->post_load;	1824	$self->post_load;
1428
1429	$self->in_memory (cf::MAP_IN_MEMORY);
1430	}	1825	}
1431		1826
1432	sub customise_for {	1827	sub customise_for {
1433	my ($self, $ob) = @_;	1828	my ($self, $ob) = @_;
1434		1829
1435	return find "~" . $ob->name . "/" . $self->{path}	1830	return find "~" . $ob->name . "/" . $self->{path}
1436	if $self->per_player;	1831	if $self->per_player;
		1832
		1833	# return find "?party/" . $ob->name . "/" . $self->{path}
		1834	# if $self->per_party;
1437		1835
1438	$self	1836	$self
1439	}	1837	}
1440		1838
1441	# find and load all maps in the 3x3 area around a map	1839	# find and load all maps in the 3x3 area around a map
…		…
1552		1950
1553	sub reset_at {	1951	sub reset_at {
1554	my ($self) = @_;	1952	my ($self) = @_;
1555		1953
1556	# TODO: safety, remove and allow resettable per-player maps	1954	# TODO: safety, remove and allow resettable per-player maps
1557	return 1e99 if $self->isa ("ext::map_per_player");#d#
1558	return 1e99 if $self->{deny_reset};	1955	return 1e99 if $self->{deny_reset};
1559		1956
1560	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1957	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1561	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1958	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1562		1959
…		…
1573	my ($self) = @_;	1970	my ($self) = @_;
1574		1971
1575	my $lock = cf::lock_acquire "map_data:$self->{path}";	1972	my $lock = cf::lock_acquire "map_data:$self->{path}";
1576		1973
1577	return if $self->players;	1974	return if $self->players;
1578	return if $self->isa ("ext::map_per_player");#d#
1579		1975
1580	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	}
1581		1987
1582	delete $cf::MAP{$self->path};	1988	delete $cf::MAP{$self->path};
1583		1989
1584	$self->in_memory (cf::MAP_SWAPPED);
1585	$self->clear;	1990	$self->clear;
1586		1991
1587	$_->clear_links_to ($self) for values %cf::MAP;	1992	$_->clear_links_to ($self) for values %cf::MAP;
1588		1993
1589	$self->unlink_save;	1994	$self->unlink_save;
…		…
1608	$cf::MAP{$self->path} = $self;	2013	$cf::MAP{$self->path} = $self;
1609		2014
1610	$self->reset; # polite request, might not happen	2015	$self->reset; # polite request, might not happen
1611	}	2016	}
1612		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
1613	=item cf::map::unique_maps	2054	=item cf::map::unique_maps
1614		2055
1615	Returns an arrayref of paths of all shared maps that have	2056	Returns an arrayref of paths of all shared maps that have
1616	instantiated unique items. May block.	2057	instantiated unique items. May block.
1617		2058
1618	=cut	2059	=cut
1619		2060
1620	sub unique_maps() {	2061	sub unique_maps() {
1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2062	[
1622	or return;	2063	map {
1623
1624	my @paths;
1625
1626	for (@$files) {
1627	utf8::decode $_;	2064	utf8::decode $_;
1628	next if /\.pst$/;
1629	next unless /^$PATH_SEP/o;
1630
1631	s/\.map$//;	2065	/\.map$/
1632	push @paths, $_;	2066	? normalise $_
		2067	: ()
		2068	} @{ aio_readdir $UNIQUEDIR or [] }
1633	}	2069	]
1634
1635	\@paths
1636	}	2070	}
1637		2071
1638	package cf;	2072	package cf;
1639		2073
1640	=back	2074	=back
…		…
1686		2120
1687	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2121	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1688		2122
1689	if ($self->{record_replies}) {	2123	if ($self->{record_replies}) {
1690	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2124	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2125
1691	} 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 {
1692	$msg = $npc->name . " says: $msg" if $npc;	2139	$msg = $npc->name . " says: $msg" if $npc;
1693	$self->message ($msg, $flags);	2140	$self->message ($msg, $flags);
		2141	}
1694	}	2142	}
1695	}	2143	}
1696		2144
1697	=item $player_object->may ("access")	2145	=item $player_object->may ("access")
1698		2146
…		…
1731	=cut	2179	=cut
1732		2180
1733	sub link_map {	2181	sub link_map {
1734	unless ($LINK_MAP) {	2182	unless ($LINK_MAP) {
1735	$LINK_MAP = cf::map::find "{link}"	2183	$LINK_MAP = cf::map::find "{link}"
1736	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2184	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1737	$LINK_MAP->load;	2185	$LINK_MAP->load;
1738	}	2186	}
1739		2187
1740	$LINK_MAP	2188	$LINK_MAP
1741	}	2189	}
…		…
1746	$self->deactivate_recursive;	2194	$self->deactivate_recursive;
1747		2195
1748	return if UNIVERSAL::isa $self->map, "ext::map_link";	2196	return if UNIVERSAL::isa $self->map, "ext::map_link";
1749		2197
1750	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2198	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1751	if $self->map;	2199	if $self->map && $self->map->{path} ne "{link}";
1752		2200
1753	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2201	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1754	}	2202	}
1755		2203
1756	sub cf::object::player::leave_link {	2204	sub cf::object::player::leave_link {
1757	my ($self, $map, $x, $y) = @_;	2205	my ($self, $map, $x, $y) = @_;
		2206
		2207	return unless $self->contr->active;
1758		2208
1759	my $link_pos = delete $self->{_link_pos};	2209	my $link_pos = delete $self->{_link_pos};
1760		2210
1761	unless ($map) {	2211	unless ($map) {
1762	# restore original map position	2212	# restore original map position
…		…
1780	$map->load;	2230	$map->load;
1781	$map->load_diag;	2231	$map->load_diag;
1782		2232
1783	return unless $self->contr->active;	2233	return unless $self->contr->active;
1784	$self->activate_recursive;	2234	$self->activate_recursive;
		2235
		2236	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1785	$self->enter_map ($map, $x, $y);	2237	$self->enter_map ($map, $x, $y);
1786	}	2238	}
1787		2239
1788	cf::player->attach (
1789	on_logout => sub {
1790	my ($pl) = @_;
1791
1792	# abort map switching before logout
1793	if ($pl->ob->{_link_pos}) {
1794	cf::sync_job {
1795	$pl->ob->leave_link
1796	};
1797	}
1798	},
1799	on_login => sub {
1800	my ($pl) = @_;
1801
1802	# try to abort aborted map switching on player login :)
1803	# should happen only on crashes
1804	if ($pl->ob->{_link_pos}) {
1805	$pl->ob->enter_link;
1806	(async {
1807	# we need this sleep as the login has a concurrent enter_exit running
1808	# and this sleep increases chances of the player not ending up in scorn
1809	$pl->ob->reply (undef,
1810	"There was an internal problem at your last logout, "
1811	. "the server will try to bring you to your intended destination in a second.",
1812	cf::NDI_RED);
1813	Coro::Timer::sleep 1;
1814	$pl->ob->leave_link;
1815	})->prio (2);
1816	}
1817	},
1818	);
1819
1820	=item $player_object->goto ($path, $x, $y)	2240	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1821		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
1822	=cut	2247	=cut
		2248
		2249	our $GOTOGEN;
1823		2250
1824	sub cf::object::player::goto {	2251	sub cf::object::player::goto {
1825	my ($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;
1826		2256
1827	$self->enter_link;	2257	$self->enter_link;
1828		2258
1829	(async {	2259	(async {
		2260	my $map = eval {
1830	my $map = cf::map::find $path;	2261	my $map = cf::map::find $path;
		2262
		2263	if ($map) {
1831	$map = $map->customise_for ($self) if $map;	2264	$map = $map->customise_for ($self);
1832		2265	$map = $check->($map) if $check && $map;
1833	# warn "entering ", $map->path, " at ($x, $y)\n"	2266	} else {
1834	# if $map;
1835
1836	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2267	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2268	}
1837		2269
		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 $@;
		2276	}
		2277
		2278	if ($gen == $self->{_goto_generation}) {
		2279	delete $self->{_goto_generation};
1838	$self->leave_link ($map, $x, $y);	2280	$self->leave_link ($map, $x, $y);
		2281	}
1839	})->prio (1);	2282	})->prio (1);
1840	}	2283	}
1841		2284
1842	=item $player_object->enter_exit ($exit_object)	2285	=item $player_object->enter_exit ($exit_object)
1843		2286
…		…
1872	# that depends on the exit object	2315	# that depends on the exit object
1873		2316
1874	my $rmp = parse_random_map_params $exit->msg;	2317	my $rmp = parse_random_map_params $exit->msg;
1875		2318
1876	if ($exit->map) {	2319	if ($exit->map) {
1877	$rmp->{region} = $exit->map->region_name;	2320	$rmp->{region} = $exit->region->name;
1878	$rmp->{origin_map} = $exit->map->path;	2321	$rmp->{origin_map} = $exit->map->path;
1879	$rmp->{origin_x} = $exit->x;	2322	$rmp->{origin_x} = $exit->x;
1880	$rmp->{origin_y} = $exit->y;	2323	$rmp->{origin_y} = $exit->y;
1881	}	2324	}
1882		2325
1883	$rmp->{random_seed} ||= $exit->random_seed;	2326	$rmp->{random_seed} ||= $exit->random_seed;
1884		2327
1885	my $data = cf::to_json $rmp;	2328	my $data = cf::to_json $rmp;
1886	my $md5 = Digest::MD5::md5_hex $data;	2329	my $md5 = Digest::MD5::md5_hex $data;
1887	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2330	my $meta = "$RANDOMDIR/$md5.meta";
1888		2331
1889	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2332	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1890	aio_write $fh, 0, (length $data), $data, 0;	2333	aio_write $fh, 0, (length $data), $data, 0;
1891	undef $fh;	2334	undef $fh;
1892	aio_rename "$meta~", $meta;	2335	aio_rename "$meta~", $meta;
…		…
1901		2344
1902	return unless $self->type == cf::PLAYER;	2345	return unless $self->type == cf::PLAYER;
1903		2346
1904	if ($exit->slaying eq "/!") {	2347	if ($exit->slaying eq "/!") {
1905	#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
1906	cf::sync_job { prepare_random_map $exit };	2351	cf::sync_job { prepare_random_map $exit };
1907	}	2352	}
1908		2353
1909	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;
1910	my $hp = $exit->stats->hp;	2355	my $hp = $exit->stats->hp;
…		…
1918	$self->goto ($slaying, $hp, $sp);	2363	$self->goto ($slaying, $hp, $sp);
1919		2364
1920	1;	2365	1;
1921	}) {	2366	}) {
1922	$self->message ("Something went wrong deep within the crossfire server. "	2367	$self->message ("Something went wrong deep within the crossfire server. "
1923	. "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. "
1924	. "Please report this to the dungeon master!",	2369	. "Please report this to the dungeon master!",
1925	cf::NDI_UNIQUE | cf::NDI_RED);	2370	cf::NDI_UNIQUE | cf::NDI_RED);
1926		2371
1927	warn "ERROR in enter_exit: $@";	2372	warn "ERROR in enter_exit: $@";
1928	$self->leave_link;	2373	$self->leave_link;
1929	}	2374	}
1930	})->prio (1);	2375	})->prio (1);
…		…
1943		2388
1944	sub cf::client::send_drawinfo {	2389	sub cf::client::send_drawinfo {
1945	my ($self, $text, $flags) = @_;	2390	my ($self, $text, $flags) = @_;
1946		2391
1947	utf8::encode $text;	2392	utf8::encode $text;
1948	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2393	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1949	}	2394	}
1950		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	}
1951		2446
1952	=item $success = $client->query ($flags, "text", \&cb)	2447	=item $success = $client->query ($flags, "text", \&cb)
1953		2448
1954	Queues a query to the client, calling the given callback with	2449	Queues a query to the client, calling the given callback with
1955	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>,
1956	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>.
1957		2452
1958	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
1959	reliable at some point in the future.	2454	become reliable at some point in the future.
1960		2455
1961	=cut	2456	=cut
1962		2457
1963	sub cf::client::query {	2458	sub cf::client::query {
1964	my ($self, $flags, $text, $cb) = @_;	2459	my ($self, $flags, $text, $cb) = @_;
…		…
1972	utf8::encode $text;	2467	utf8::encode $text;
1973	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2468	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1974		2469
1975	$self->send_packet ($self->{query_queue}[0][0])	2470	$self->send_packet ($self->{query_queue}[0][0])
1976	if @{ $self->{query_queue} } == 1;	2471	if @{ $self->{query_queue} } == 1;
		2472
		2473	1
1977	}	2474	}
1978		2475
1979	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	},
1980	on_reply => sub {	2482	on_reply => sub {
1981	my ($ns, $msg) = @_;	2483	my ($ns, $msg) = @_;
1982		2484
1983	# this weird shuffling is so that direct followup queries	2485	# this weird shuffling is so that direct followup queries
1984	# get handled first	2486	# get handled first
1985	my $queue = delete $ns->{query_queue}	2487	my $queue = delete $ns->{query_queue}
1986	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
1987		2489
1988	(shift @$queue)->[1]->($msg);	2490	(shift @$queue)->[1]->($msg);
		2491	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1989		2492
1990	push @{ $ns->{query_queue} }, @$queue;	2493	push @{ $ns->{query_queue} }, @$queue;
1991		2494
1992	if (@{ $ns->{query_queue} } == @$queue) {	2495	if (@{ $ns->{query_queue} } == @$queue) {
1993	if (@$queue) {	2496	if (@$queue) {
…		…
1995	} else {	2498	} else {
1996	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2499	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1997	}	2500	}
1998	}	2501	}
1999	},	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	},
2000	);	2521	);
2001		2522
2002	=item $client->async (\&cb)	2523	=item $client->async (\&cb)
2003		2524
2004	Create a new coroutine, running the specified callback. The coroutine will	2525	Create a new coroutine, running the specified callback. The coroutine will
…		…
2051		2572
2052	# here we export the classes and methods available to script code	2573	# here we export the classes and methods available to script code
2053		2574
2054	=pod	2575	=pod
2055		2576
2056	The following fucntions and emthods are available within a safe environment:	2577	The following functions and methods are available within a safe environment:
2057		2578
2058	cf::object contr pay_amount pay_player map	2579	cf::object contr pay_amount pay_player map
2059	cf::object::player player	2580	cf::object::player player
2060	cf::player peaceful	2581	cf::player peaceful
2061	cf::map trigger	2582	cf::map trigger
…		…
2142	=back	2663	=back
2143		2664
2144	=cut	2665	=cut
2145		2666
2146	#############################################################################	2667	#############################################################################
		2668	# the server's init and main functions
2147		2669
2148	=head2 EXTENSION DATABASE SUPPORT	2670	sub load_facedata($) {
		2671	my ($path) = @_;
2149		2672
2150	Crossfire maintains a very simple database for extension use. It can	2673	warn "loading facedata from $path\n";
2151	currently store anything that can be serialised using Storable, which
2152	excludes objects.
2153		2674
2154	The parameter C<$family> should best start with the name of the extension	2675	my $facedata;
2155	using it, it should be unique.	2676	0 < aio_load $path, $facedata
		2677	or die "$path: $!";
2156		2678
2157	=over 4	2679	$facedata = Coro::Storable::thaw $facedata;
2158		2680
2159	=item $hashref = cf::db_get $family	2681	$facedata->{version} == 2
		2682	or cf::cleanup "$path: version mismatch, cannot proceed.";
2160		2683
2161	Return a hashref for use by the extension C<$family>, which can be
2162	modified. After modifications, you have to call C<cf::db_dirty> or
2163	C<cf::db_sync>.
2164
2165	=item $value = cf::db_get $family => $key
2166
2167	Returns a single value from the database
2168
2169	=item cf::db_put $family => $hashref
2170
2171	Stores the given family hashref into the database. Updates are delayed, if
2172	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2173
2174	=item cf::db_put $family => $key => $value
2175
2176	Stores the given C<$value> in the family hash. Updates are delayed, if you
2177	want the data to be synced to disk immediately, use C<cf::db_sync>.
2178
2179	=item cf::db_dirty
2180
2181	Marks the database as dirty, to be updated at a later time.
2182
2183	=item cf::db_sync
2184
2185	Immediately write the database to disk I<if it is dirty>.
2186
2187	=cut
2188
2189	our $DB;
2190
2191	{
2192	my $path = cf::localdir . "/database.pst";
2193
2194	sub db_load() {
2195	$DB = stat $path ? Storable::retrieve $path : { };
2196	}	2684	{
		2685	my $faces = $facedata->{faceinfo};
2197		2686
2198	my $pid;	2687	while (my ($face, $info) = each %$faces) {
2199		2688	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2200	sub db_save() {	2689	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2201	waitpid $pid, 0 if $pid;	2690	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2202	if (0 == ($pid = fork)) {	2691	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2203	$DB->{_meta}{version} = 1;	2692	Coro::cede;
2204	Storable::nstore $DB, "$path~";
2205	rename "$path~", $path;
2206	cf::_exit 0 if defined $pid;
2207	}
2208	}
2209
2210	my $dirty;
2211
2212	sub db_sync() {
2213	db_save if $dirty;
2214	undef $dirty;
2215	}
2216
2217	my $idle = Event->idle (
2218	reentrant => 0,
2219	min => 10,
2220	max => 20,
2221	repeat => 0,
2222	data => WF_AUTOCANCEL,
2223	cb => \&db_sync,
2224	);
2225
2226	sub db_dirty() {
2227	$dirty = 1;
2228	$idle->start;
2229	}
2230
2231	sub db_get($;$) {
2232	@_ >= 2
2233	? $DB->{$_[0]}{$_[1]}
2234	: ($DB->{$_[0]} ||= { })
2235	}
2236
2237	sub db_put($$;$) {
2238	if (@_ >= 3) {
2239	$DB->{$_[0]}{$_[1]} = $_[2];
2240	} else {
2241	$DB->{$_[0]} = $_[1];
2242	}
2243	db_dirty;
2244	}
2245
2246	cf::global->attach (
2247	prio => 10000,
2248	on_cleanup => sub {
2249	db_sync;
2250	},	2693	}
2251	);
2252	}
2253		2694
2254	#############################################################################	2695	while (my ($face, $info) = each %$faces) {
2255	# 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	}
2256		2762
2257	sub cfg_load {	2763	sub cfg_load {
2258	open my $fh, "<:utf8", cf::confdir . "/config"	2764	open my $fh, "<:utf8", "$CONFDIR/config"
2259	or return;	2765	or return;
2260		2766
2261	local $/;	2767	local $/;
2262	*CFG = YAML::Syck::Load <$fh>;	2768	*CFG = YAML::Syck::Load <$fh>;
2263		2769
…		…
2283	Event::one_event;	2789	Event::one_event;
2284	})->prio (Coro::PRIO_MAX);	2790	})->prio (Coro::PRIO_MAX);
2285	};	2791	};
2286		2792
2287	cfg_load;	2793	cfg_load;
2288	db_load;	2794	db_init;
2289	load_extensions;	2795	load_extensions;
2290		2796
2291	$TICK_WATCHER->start;	2797	$TICK_WATCHER->start;
2292	Event::loop;	2798	Event::loop;
2293	}	2799	}
…		…
2308	},	2814	},
2309	);	2815	);
2310	}	2816	}
2311	}	2817	}
2312		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
2313	sub emergency_save() {	2857	sub emergency_save() {
2314	my $freeze_guard = cf::freeze_mainloop;	2858	my $freeze_guard = cf::freeze_mainloop;
2315		2859
2316	warn "enter emergency perl save\n";	2860	warn "enter emergency perl save\n";
2317		2861
…		…
2332	my $map = $cf::MAP{$path} or next;	2876	my $map = $cf::MAP{$path} or next;
2333	$map->valid or next;	2877	$map->valid or next;
2334	$map->save;	2878	$map->save;
2335	}	2879	}
2336	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 $DB_ENV;
		2884	warn "end emergency database checkpoint\n";
2337	};	2885	};
2338		2886
2339	warn "leave emergency perl save\n";	2887	warn "leave emergency perl save\n";
2340	}	2888	}
2341		2889
		2890	sub post_cleanup {
		2891	my ($make_core) = @_;
		2892
		2893	warn Carp::longmess "post_cleanup backtrace"
		2894	if $make_core;
		2895	}
		2896
2342	sub reload() {	2897	sub do_reload_perl() {
2343	# can/must only be called in main	2898	# can/must only be called in main
2344	if ($Coro::current != $Coro::main) {	2899	if ($Coro::current != $Coro::main) {
2345	warn "can only reload from main coroutine";	2900	warn "can only reload from main coroutine";
2346	return;	2901	return;
2347	}	2902	}
2348		2903
2349	warn "reloading...";	2904	warn "reloading...";
2350		2905
2351	warn "cancelling server ticker";	2906	warn "entering sync_job";
2352	$TICK_WATCHER->cancel;
2353		2907
		2908	cf::sync_job {
		2909	cf::write_runtime; # external watchdog should not bark
2354	cf::emergency_save;	2910	cf::emergency_save;
		2911	cf::write_runtime; # external watchdog should not bark
2355		2912
2356	eval {	2913	warn "syncing database to disk";
		2914	BDB::db_env_txn_checkpoint $DB_ENV;
		2915
2357	# 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
2358
2359	warn "syncing database to disk";
2360	cf::db_sync;
2361		2917
2362	warn "cancelling all WF_AUTOCANCEL watchers";	2918	warn "cancelling all WF_AUTOCANCEL watchers";
2363	for (Event::all_watchers) {	2919	for (Event::all_watchers) {
2364	$_->cancel if $_->data & WF_AUTOCANCEL;	2920	$_->cancel if $_->data & WF_AUTOCANCEL;
2365	}	2921	}
2366		2922
2367	warn "flushing outstanding aio requests";	2923	warn "flushing outstanding aio requests";
2368	for (;;) {	2924	for (;;) {
		2925	BDB::flush;
2369	IO::AIO::flush;	2926	IO::AIO::flush;
2370	Coro::cede;	2927	Coro::cede;
2371	last unless IO::AIO::nreqs;	2928	last unless IO::AIO::nreqs || BDB::nreqs;
2372	warn "iterate...";	2929	warn "iterate...";
2373	}	2930	}
		2931
		2932	++$RELOAD;
2374		2933
2375	warn "cancelling all extension coros";	2934	warn "cancelling all extension coros";
2376	$_->cancel for values %EXT_CORO;	2935	$_->cancel for values %EXT_CORO;
2377	%EXT_CORO = ();	2936	%EXT_CORO = ();
2378		2937
2379	warn "removing commands";	2938	warn "removing commands";
2380	%COMMAND = ();	2939	%COMMAND = ();
2381		2940
2382	warn "removing ext commands";	2941	warn "removing ext/exti commands";
2383	%EXTCMD = ();	2942	%EXTCMD = ();
		2943	%EXTICMD = ();
2384		2944
2385	warn "unloading/nuking all extensions";	2945	warn "unloading/nuking all extensions";
2386	for my $pkg (@EXTS) {	2946	for my $pkg (@EXTS) {
2387	warn "... unloading $pkg";	2947	warn "... unloading $pkg";
2388		2948
…		…
2418	Symbol::delete_package "safe::$_"	2978	Symbol::delete_package "safe::$_"
2419	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);
2420		2980
2421	warn "unloading cf.pm \"a bit\"";	2981	warn "unloading cf.pm \"a bit\"";
2422	delete $INC{"cf.pm"};	2982	delete $INC{"cf.pm"};
		2983	delete $INC{"cf/pod.pm"};
2423		2984
2424	# don't, removes xs symbols, too,	2985	# don't, removes xs symbols, too,
2425	# and global variables created in xs	2986	# and global variables created in xs
2426	#Symbol::delete_package __PACKAGE__;	2987	#Symbol::delete_package __PACKAGE__;
2427		2988
…		…
2431	require cf;	2992	require cf;
2432	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2993	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2433		2994
2434	warn "loading config and database again";	2995	warn "loading config and database again";
2435	cf::cfg_load;	2996	cf::cfg_load;
2436	cf::db_load;
2437		2997
2438	warn "loading extensions";	2998	warn "loading extensions";
2439	cf::load_extensions;	2999	cf::load_extensions;
2440		3000
2441	warn "reattaching attachments to objects/players";	3001	warn "reattaching attachments to objects/players";
2442	_global_reattach;	3002	_global_reattach; # objects, sockets
2443	warn "reattaching attachments to maps";	3003	warn "reattaching attachments to maps";
2444	reattach $_ for values %MAP;	3004	reattach $_ for values %MAP;
		3005	warn "reattaching attachments to players";
		3006	reattach $_ for values %PLAYER;
2445		3007
2446	warn "restarting server ticker";	3008	warn "leaving sync_job";
2447		3009
2448	$TICK_WATCHER->start;	3010	1
2449	};	3011	} or do {
2450
2451	if ($@) {
2452	warn $@;	3012	warn $@;
2453	warn "error while reloading, exiting.";	3013	warn "error while reloading, exiting.";
2454	exit 1;	3014	exit 1;
2455	}	3015	};
2456		3016
2457	warn "reloaded";	3017	warn "reloaded";
2458	};	3018	};
2459		3019
2460	our $RELOAD_WATCHER; # used only during reload	3020	our $RELOAD_WATCHER; # used only during reload
2461		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 $RELOAD_WATCHER;
		3033	},
		3034	);
		3035	}
		3036
2462	register_command "reload" => sub {	3037	register_command "reload" => sub {
2463	my ($who, $arg) = @_;	3038	my ($who, $arg) = @_;
2464		3039
2465	if ($who->flag (FLAG_WIZ)) {	3040	if ($who->flag (FLAG_WIZ)) {
2466	$who->message ("reloading server.");	3041	$who->message ("reloading server.");
2467		3042	async { reload_perl };
2468	# doing reload synchronously and two reloads happen back-to-back,
2469	# coro crashes during coro_state_free->destroy here.
2470
2471	$RELOAD_WATCHER ||= Event->timer (
2472	reentrant => 0,
2473	after => 0,
2474	data => WF_AUTOCANCEL,
2475	cb => sub {
2476	reload;
2477	undef $RELOAD_WATCHER;
2478	},
2479	);
2480	}	3043	}
2481	};	3044	};
2482		3045
2483	unshift @INC, $LIBDIR;	3046	unshift @INC, $LIBDIR;
2484		3047
2485	my $bug_warning = 0;	3048	my $bug_warning = 0;
2486		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;
2487	$TICK_WATCHER = Event->timer (	3073	$TICK_WATCHER = Event->timer (
2488	reentrant => 0,	3074	reentrant => 0,
2489	parked => 1,	3075	parked => 1,
2490	prio => 0,	3076	prio => 0,
2491	at => $NEXT_TICK || $TICK,	3077	at => $NEXT_TICK || $TICK,
…		…
2495	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3081	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2496	unless ++$bug_warning > 10;	3082	unless ++$bug_warning > 10;
2497	return;	3083	return;
2498	}	3084	}
2499		3085
2500	$NOW = Event::time;	3086	$NOW = $tick_start = Event::time;
2501		3087
2502	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
2503	$RUNTIME += $TICK;	3113	$RUNTIME += $TICK;
2504	$NEXT_TICK += $TICK;	3114	$NEXT_TICK += $TICK;
2505		3115
2506	$WAIT_FOR_TICK->broadcast;	3116	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2507	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3117	$NEXT_RUNTIME_WRITE = $NOW + 10;
2508		3118	Coro::async_pool {
2509	Event::sweep;	3119	write_runtime
2510	Coro::cede_notself;	3120	or warn "ERROR: unable to write runtime file: $!";
		3121	};
2511		3122	}
		3123
2512	# my $AFTER = Event::time;	3124	# my $AFTER = Event::time;
2513	# warn $AFTER - $NOW;#d#	3125	# warn $AFTER - $NOW;#d#
2514		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
2515	# 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
2516	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3137	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2517		3138
2518	$TICK_WATCHER->at ($NEXT_TICK);	3139	$TICK_WATCHER->at ($NEXT_TICK);
2519	$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
2520	},	3148	},
2521	);	3149	);
2522		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;
2523	IO::AIO::max_poll_time $TICK * 0.1;	3205	IO::AIO::max_poll_time $TICK * 0.1;
2524
2525	undef $Coro::AIO::WATCHER;
2526	$AIO_POLL_WATCHER = Event->io (	3206	$AIO_POLL_WATCHER = Event->io (
2527	reentrant => 0,	3207	reentrant => 0,
		3208	data => WF_AUTOCANCEL,
2528	fd => IO::AIO::poll_fileno,	3209	fd => IO::AIO::poll_fileno,
2529	poll => 'r',	3210	poll => 'r',
2530	prio => 6,	3211	prio => 6,
2531	data => WF_AUTOCANCEL,
2532	cb => \&IO::AIO::poll_cb,	3212	cb => \&IO::AIO::poll_cb,
2533	);	3213	);
		3214	}
2534		3215
2535	$WRITE_RUNTIME_WATCHER = Event->timer (	3216	my $_log_backtrace;
2536	reentrant => 0,	3217
2537	data => WF_AUTOCANCEL,	3218	sub _log_backtrace {
2538	after => 1,	3219	my ($msg, @addr) = @_;
2539	interval => 10,	3220
2540	prio => 6, # keep it lowest so it acts like a watchdog	3221	$msg =~ s/\n//;
2541	cb => Coro::unblock_sub {	3222
2542	write_runtime	3223	# limit the # of concurrent backtraces
2543	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";
2544	},	3251	}
2545	);	3252	}
		3253
		3254	# load additional modules
		3255	use cf::pod;
2546		3256
2547	END { cf::emergency_save }	3257	END { cf::emergency_save }
2548		3258
2549	1	3259	1
2550		3260

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