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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.188 by root, Sat Jan 20 23:30:16 2007 UTC vs.
Revision 1.289 by root, Sat Jun 30 03:00:54 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.4 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
		26	use BDB ();
20	use Data::Dumper;	27	use Data::Dumper;
21	use Digest::MD5;	28	use Digest::MD5;
22	use Fcntl;	29	use Fcntl;
		30	use YAML::Syck ();
23	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
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->convert_blessed->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) = @_;
…		…
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<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1406
		1407	# create single paragraphs (very hackish)
		1408	s/(?<=\S)\n(?=\w)/ /g;
		1409
		1410	$_
		1411	}
		1412
1090	=item $player->ext_reply ($msgid, $msgtype, %msg)	1413	=item $player->ext_reply ($msgid, %msg)
1091		1414
1092	Sends an ext reply to the player.	1415	Sends an ext reply to the player.
1093		1416
1094	=cut	1417	=cut
1095		1418
1096	sub ext_reply($$$%) {	1419	sub ext_reply($$%) {
1097	my ($self, $id, %msg) = @_;	1420	my ($self, $id, %msg) = @_;
1098		1421
1099	$msg{msgid} = $id;	1422	$msg{msgid} = $id;
1100
1101	$self->send ("ext " . cf::to_json \%msg);	1423	$self->send ("ext " . cf::to_json \%msg);
1102	}	1424	}
1103		1425
1104	package cf;	1426	=item $player->ext_event ($type, %msg)
		1427
		1428	Sends an ext event to the client.
		1429
		1430	=cut
		1431
		1432	sub ext_event($$%) {
		1433	my ($self, $type, %msg) = @_;
		1434
		1435	$self->ns->ext_event ($type, %msg);
		1436	}
		1437
		1438	=head3 cf::region
		1439
		1440	=over 4
		1441
		1442	=cut
		1443
		1444	package cf::region;
		1445
		1446	=item cf::region::find_by_path $path
		1447
		1448	Tries to decuce the likely region for a map knowing only its path.
		1449
		1450	=cut
		1451
		1452	sub find_by_path($) {
		1453	my ($path) = @_;
		1454
		1455	my ($match, $specificity);
		1456
		1457	for my $region (list) {
		1458	if ($region->match && $path =~ $region->match) {
		1459	($match, $specificity) = ($region, $region->specificity)
		1460	if $region->specificity > $specificity;
		1461	}
		1462	}
		1463
		1464	$match
		1465	}
1105		1466
1106	=back	1467	=back
1107
1108		1468
1109	=head3 cf::map	1469	=head3 cf::map
1110		1470
1111	=over 4	1471	=over 4
1112		1472
…		…
1167	my ($self, $merge) = @_;	1527	my ($self, $merge) = @_;
1168		1528
1169	# we have to keep some variables in memory intact	1529	# we have to keep some variables in memory intact
1170	local $self->{path};	1530	local $self->{path};
1171	local $self->{load_path};	1531	local $self->{load_path};
1172	local $self->{deny_save};
1173	local $self->{deny_reset};
1174		1532
1175	$self->SUPER::thawer_merge ($merge);	1533	$self->SUPER::thawer_merge ($merge);
1176	}	1534	}
1177		1535
1178	sub normalise {	1536	sub normalise {
1179	my ($path, $base) = @_;	1537	my ($path, $base) = @_;
		1538
		1539	$path = "$path"; # make sure its a string
		1540
		1541	$path =~ s/\.map$//;
1180		1542
1181	# map plan:	1543	# map plan:
1182	#	1544	#
1183	# /! non-realised random map exit (special hack!)	1545	# /! non-realised random map exit (special hack!)
1184	# {... are special paths that are not being touched	1546	# {... are special paths that are not being touched
…		…
1221	$self->init; # pass $1 etc.	1583	$self->init; # pass $1 etc.
1222	return $self;	1584	return $self;
1223	}	1585	}
1224	}	1586	}
1225		1587
1226	Carp::carp "unable to resolve path '$path'.";	1588	Carp::carp "unable to resolve path '$path' (base '$base').";
1227	()	1589	()
1228	}	1590	}
1229		1591
1230	sub init {	1592	sub init {
1231	my ($self) = @_;	1593	my ($self) = @_;
…		…
1246		1608
1247	# the original (read-only) location	1609	# the original (read-only) location
1248	sub load_path {	1610	sub load_path {
1249	my ($self) = @_;	1611	my ($self) = @_;
1250		1612
1251	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1613	"$MAPDIR/$self->{path}.map"
1252	}	1614	}
1253		1615
1254	# the temporary/swap location	1616	# the temporary/swap location
1255	sub save_path {	1617	sub save_path {
1256	my ($self) = @_;	1618	my ($self) = @_;
1257		1619
1258	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1620	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1259	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1621	"$TMPDIR/$path.map"
1260	}	1622	}
1261		1623
1262	# the unique path, undef == no special unique path	1624	# the unique path, undef == no special unique path
1263	sub uniq_path {	1625	sub uniq_path {
1264	my ($self) = @_;	1626	my ($self) = @_;
1265		1627
1266	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1628	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1267	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1629	"$UNIQUEDIR/$path"
1268	}	1630	}
1269		1631
1270	# and all this just because we cannot iterate over	1632	# and all this just because we cannot iterate over
1271	# all maps in C++...	1633	# all maps in C++...
1272	sub change_all_map_light {	1634	sub change_all_map_light {
…		…
1274		1636
1275	$_->change_map_light ($change)	1637	$_->change_map_light ($change)
1276	for grep $_->outdoor, values %cf::MAP;	1638	for grep $_->outdoor, values %cf::MAP;
1277	}	1639	}
1278		1640
		1641	sub decay_objects {
		1642	my ($self) = @_;
		1643
		1644	return if $self->{deny_reset};
		1645
		1646	$self->do_decay_objects;
		1647	}
		1648
1279	sub unlink_save {	1649	sub unlink_save {
1280	my ($self) = @_;	1650	my ($self) = @_;
1281		1651
1282	utf8::encode (my $save = $self->save_path);	1652	utf8::encode (my $save = $self->save_path);
1283	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1653	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1286		1656
1287	sub load_header_from($) {	1657	sub load_header_from($) {
1288	my ($self, $path) = @_;	1658	my ($self, $path) = @_;
1289		1659
1290	utf8::encode $path;	1660	utf8::encode $path;
1291	aio_open $path, O_RDONLY, 0	1661	#aio_open $path, O_RDONLY, 0
1292	or return;	1662	# or return;
1293		1663
1294	$self->_load_header ($path)	1664	$self->_load_header ($path)
1295	or return;	1665	or return;
1296		1666
1297	$self->{load_path} = $path;	1667	$self->{load_path} = $path;
…		…
1339	$self->load_header_orig	1709	$self->load_header_orig
1340	or return;	1710	or return;
1341	$self->prepare_orig;	1711	$self->prepare_orig;
1342	}	1712	}
1343		1713
		1714	$self->{deny_reset} = 1
		1715	if $self->no_reset;
		1716
		1717	$self->default_region (cf::region::find_by_path $self->{path})
		1718	unless $self->default_region;
		1719
1344	1	1720	1
1345	}	1721	}
1346		1722
1347	sub find;	1723	sub find;
1348	sub find {	1724	sub find {
…		…
1360	$map->{last_save} = $cf::RUNTIME;	1736	$map->{last_save} = $cf::RUNTIME;
1361		1737
1362	$map->load_header	1738	$map->load_header
1363	or return;	1739	or return;
1364		1740
1365	if ($map->should_reset) {	1741	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1366	# doing this can freeze the server in a sync job, obviously	1742	# doing this can freeze the server in a sync job, obviously
1367	#$cf::WAIT_FOR_TICK->wait;	1743	#$cf::WAIT_FOR_TICK->wait;
1368	$map->reset;	1744	$map->reset;
1369	undef $guard;	1745	undef $guard;
1370	$map = find $path	1746	return find $path;
1371	or return;
1372	}	1747	}
1373		1748
1374	$cf::MAP{$path} = $map	1749	$cf::MAP{$path} = $map
1375	}	1750	}
1376	}	1751	}
…		…
1379	sub post_load { }	1754	sub post_load { }
1380		1755
1381	sub load {	1756	sub load {
1382	my ($self) = @_;	1757	my ($self) = @_;
1383		1758
		1759	local $self->{deny_reset} = 1; # loading can take a long time
		1760
1384	my $path = $self->{path};	1761	my $path = $self->{path};
		1762
		1763	{
1385	my $guard = cf::lock_acquire "map_load:$path";	1764	my $guard = cf::lock_acquire "map_load:$path";
1386		1765
1387	return if $self->in_memory != cf::MAP_SWAPPED;	1766	return if $self->in_memory != cf::MAP_SWAPPED;
1388		1767
1389	$self->in_memory (cf::MAP_LOADING);	1768	$self->in_memory (cf::MAP_LOADING);
1390		1769
1391	$self->alloc;	1770	$self->alloc;
1392		1771
1393	$self->pre_load;	1772	$self->pre_load;
1394
1395	$self->_load_objects ($self->{load_path}, 1)
1396	or return;
1397
1398	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1399	if delete $self->{load_original};
1400
1401	if (my $uniq = $self->uniq_path) {
1402	utf8::encode $uniq;
1403	if (aio_open $uniq, O_RDONLY, 0) {
1404	$self->clear_unique_items;
1405	$self->_load_objects ($uniq, 0);
1406	}
1407	}
1408
1409	Coro::cede;
1410
1411	# now do the right thing for maps
1412	$self->link_multipart_objects;
1413
1414	unless ($self->{deny_activate}) {
1415	$self->decay_objects;
1416	$self->fix_auto_apply;
1417	$self->update_buttons;
1418	Coro::cede;	1773	Coro::cede;
1419	$self->set_darkness_map;	1774
		1775	$self->_load_objects ($self->{load_path}, 1)
		1776	or return;
		1777
		1778	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1779	if delete $self->{load_original};
		1780
		1781	if (my $uniq = $self->uniq_path) {
		1782	utf8::encode $uniq;
		1783	if (aio_open $uniq, O_RDONLY, 0) {
		1784	$self->clear_unique_items;
		1785	$self->_load_objects ($uniq, 0);
		1786	}
		1787	}
		1788
		1789	Coro::cede;
		1790	# now do the right thing for maps
		1791	$self->link_multipart_objects;
1420	$self->difficulty ($self->estimate_difficulty)	1792	$self->difficulty ($self->estimate_difficulty)
1421	unless $self->difficulty;	1793	unless $self->difficulty;
1422	Coro::cede;	1794	Coro::cede;
		1795
		1796	unless ($self->{deny_activate}) {
		1797	$self->decay_objects;
		1798	$self->fix_auto_apply;
		1799	$self->update_buttons;
		1800	Coro::cede;
		1801	$self->set_darkness_map;
		1802	Coro::cede;
1423	$self->activate;	1803	$self->activate;
		1804	}
		1805
		1806	$self->in_memory (cf::MAP_IN_MEMORY);
1424	}	1807	}
1425		1808
1426	$self->post_load;	1809	$self->post_load;
1427
1428	$self->in_memory (cf::MAP_IN_MEMORY);
1429	}	1810	}
1430		1811
1431	sub customise_for {	1812	sub customise_for {
1432	my ($self, $ob) = @_;	1813	my ($self, $ob) = @_;
1433		1814
1434	return find "~" . $ob->name . "/" . $self->{path}	1815	return find "~" . $ob->name . "/" . $self->{path}
1435	if $self->per_player;	1816	if $self->per_player;
		1817
		1818	# return find "?party/" . $ob->name . "/" . $self->{path}
		1819	# if $self->per_party;
1436		1820
1437	$self	1821	$self
1438	}	1822	}
1439		1823
1440	# find and load all maps in the 3x3 area around a map	1824	# find and load all maps in the 3x3 area around a map
…		…
1496	delete $MAP_PREFETCH{$path};	1880	delete $MAP_PREFETCH{$path};
1497	}	1881	}
1498	}	1882	}
1499	undef $MAP_PREFETCHER;	1883	undef $MAP_PREFETCHER;
1500	};	1884	};
		1885	$MAP_PREFETCHER->prio (6);
1501		1886
1502	()	1887	()
1503	}	1888	}
1504		1889
1505	sub save {	1890	sub save {
…		…
1550		1935
1551	sub reset_at {	1936	sub reset_at {
1552	my ($self) = @_;	1937	my ($self) = @_;
1553		1938
1554	# TODO: safety, remove and allow resettable per-player maps	1939	# TODO: safety, remove and allow resettable per-player maps
1555	return 1e99 if $self->isa ("ext::map_per_player");#d#
1556	return 1e99 if $self->{deny_reset};	1940	return 1e99 if $self->{deny_reset};
1557		1941
1558	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1942	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1559	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1943	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1560		1944
…		…
1571	my ($self) = @_;	1955	my ($self) = @_;
1572		1956
1573	my $lock = cf::lock_acquire "map_data:$self->{path}";	1957	my $lock = cf::lock_acquire "map_data:$self->{path}";
1574		1958
1575	return if $self->players;	1959	return if $self->players;
1576	return if $self->isa ("ext::map_per_player");#d#
1577		1960
1578	warn "resetting map ", $self->path;#d#	1961	warn "resetting map ", $self->path;
		1962
		1963	$self->in_memory (cf::MAP_SWAPPED);
		1964
		1965	# need to save uniques path
		1966	unless ($self->{deny_save}) {
		1967	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1968
		1969	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1970	if $uniq;
		1971	}
1579		1972
1580	delete $cf::MAP{$self->path};	1973	delete $cf::MAP{$self->path};
1581		1974
1582	$self->in_memory (cf::MAP_SWAPPED);
1583	$self->clear;	1975	$self->clear;
1584		1976
1585	$_->clear_links_to ($self) for values %cf::MAP;	1977	$_->clear_links_to ($self) for values %cf::MAP;
1586		1978
1587	$self->unlink_save;	1979	$self->unlink_save;
…		…
1606	$cf::MAP{$self->path} = $self;	1998	$cf::MAP{$self->path} = $self;
1607		1999
1608	$self->reset; # polite request, might not happen	2000	$self->reset; # polite request, might not happen
1609	}	2001	}
1610		2002
		2003	=item $maps = cf::map::tmp_maps
		2004
		2005	Returns an arrayref with all map paths of currently instantiated and saved
		2006	maps. May block.
		2007
		2008	=cut
		2009
		2010	sub tmp_maps() {
		2011	[
		2012	map {
		2013	utf8::decode $_;
		2014	/\.map$/
		2015	? normalise $_
		2016	: ()
		2017	} @{ aio_readdir $TMPDIR or [] }
		2018	]
		2019	}
		2020
		2021	=item $maps = cf::map::random_maps
		2022
		2023	Returns an arrayref with all map paths of currently instantiated and saved
		2024	random maps. May block.
		2025
		2026	=cut
		2027
		2028	sub random_maps() {
		2029	[
		2030	map {
		2031	utf8::decode $_;
		2032	/\.map$/
		2033	? normalise "?random/$_"
		2034	: ()
		2035	} @{ aio_readdir $RANDOMDIR or [] }
		2036	]
		2037	}
		2038
1611	=item cf::map::unique_maps	2039	=item cf::map::unique_maps
1612		2040
1613	Returns an arrayref of paths of all shared maps that have	2041	Returns an arrayref of paths of all shared maps that have
1614	instantiated unique items. May block.	2042	instantiated unique items. May block.
1615		2043
1616	=cut	2044	=cut
1617		2045
1618	sub unique_maps() {	2046	sub unique_maps() {
1619	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2047	[
1620	or return;	2048	map {
1621
1622	my @paths;
1623
1624	for (@$files) {
1625	utf8::decode $_;	2049	utf8::decode $_;
1626	next if /\.pst$/;
1627	next unless /^$PATH_SEP/o;
1628
1629	s/\.map$//;	2050	/\.map$/
1630	push @paths, $_;	2051	? normalise $_
		2052	: ()
		2053	} @{ aio_readdir $UNIQUEDIR or [] }
1631	}	2054	]
1632
1633	\@paths
1634	}	2055	}
1635		2056
1636	package cf;	2057	package cf;
1637		2058
1638	=back	2059	=back
…		…
1684		2105
1685	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2106	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1686		2107
1687	if ($self->{record_replies}) {	2108	if ($self->{record_replies}) {
1688	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2109	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2110
1689	} else {	2111	} else {
		2112	my $pl = $self->contr;
		2113
		2114	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2115	my $diag = $pl->{npc_dialog};
		2116	$diag->{pl}->ext_reply (
		2117	$diag->{id},
		2118	msgtype => "reply",
		2119	msg => $diag->{pl}->expand_cfpod ($msg),
		2120	add_topics => []
		2121	);
		2122
		2123	} else {
1690	$msg = $npc->name . " says: $msg" if $npc;	2124	$msg = $npc->name . " says: $msg" if $npc;
1691	$self->message ($msg, $flags);	2125	$self->message ($msg, $flags);
		2126	}
1692	}	2127	}
1693	}	2128	}
1694		2129
1695	=item $player_object->may ("access")	2130	=item $player_object->may ("access")
1696		2131
…		…
1729	=cut	2164	=cut
1730		2165
1731	sub link_map {	2166	sub link_map {
1732	unless ($LINK_MAP) {	2167	unless ($LINK_MAP) {
1733	$LINK_MAP = cf::map::find "{link}"	2168	$LINK_MAP = cf::map::find "{link}"
1734	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2169	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1735	$LINK_MAP->load;	2170	$LINK_MAP->load;
1736	}	2171	}
1737		2172
1738	$LINK_MAP	2173	$LINK_MAP
1739	}	2174	}
…		…
1744	$self->deactivate_recursive;	2179	$self->deactivate_recursive;
1745		2180
1746	return if UNIVERSAL::isa $self->map, "ext::map_link";	2181	return if UNIVERSAL::isa $self->map, "ext::map_link";
1747		2182
1748	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2183	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1749	if $self->map;	2184	if $self->map && $self->map->{path} ne "{link}";
1750		2185
1751	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2186	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1752	}	2187	}
1753		2188
1754	sub cf::object::player::leave_link {	2189	sub cf::object::player::leave_link {
1755	my ($self, $map, $x, $y) = @_;	2190	my ($self, $map, $x, $y) = @_;
		2191
		2192	return unless $self->contr->active;
1756		2193
1757	my $link_pos = delete $self->{_link_pos};	2194	my $link_pos = delete $self->{_link_pos};
1758		2195
1759	unless ($map) {	2196	unless ($map) {
1760	# restore original map position	2197	# restore original map position
…		…
1778	$map->load;	2215	$map->load;
1779	$map->load_diag;	2216	$map->load_diag;
1780		2217
1781	return unless $self->contr->active;	2218	return unless $self->contr->active;
1782	$self->activate_recursive;	2219	$self->activate_recursive;
		2220
		2221	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1783	$self->enter_map ($map, $x, $y);	2222	$self->enter_map ($map, $x, $y);
1784	}	2223	}
1785		2224
1786	cf::player->attach (
1787	on_logout => sub {
1788	my ($pl) = @_;
1789
1790	# abort map switching before logout
1791	if ($pl->ob->{_link_pos}) {
1792	cf::sync_job {
1793	$pl->ob->leave_link
1794	};
1795	}
1796	},
1797	on_login => sub {
1798	my ($pl) = @_;
1799
1800	# try to abort aborted map switching on player login :)
1801	# should happen only on crashes
1802	if ($pl->ob->{_link_pos}) {
1803	$pl->ob->enter_link;
1804	(async {
1805	# we need this sleep as the login has a concurrent enter_exit running
1806	# and this sleep increases chances of the player not ending up in scorn
1807	$pl->ob->reply (undef,
1808	"There was an internal problem at your last logout, "
1809	. "the server will try to bring you to your intended destination in a second.",
1810	cf::NDI_RED);
1811	Coro::Timer::sleep 1;
1812	$pl->ob->leave_link;
1813	})->prio (2);
1814	}
1815	},
1816	);
1817
1818	=item $player_object->goto ($path, $x, $y)	2225	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1819		2226
		2227	Moves the player to the given map-path and coordinates by first freezing
		2228	her, loading and preparing them map, calling the provided $check callback
		2229	that has to return the map if sucecssful, and then unfreezes the player on
		2230	the new (success) or old (failed) map position.
		2231
1820	=cut	2232	=cut
		2233
		2234	our $GOTOGEN;
1821		2235
1822	sub cf::object::player::goto {	2236	sub cf::object::player::goto {
1823	my ($self, $path, $x, $y) = @_;	2237	my ($self, $path, $x, $y, $check) = @_;
		2238
		2239	# do generation counting so two concurrent goto's will be executed in-order
		2240	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1824		2241
1825	$self->enter_link;	2242	$self->enter_link;
1826		2243
1827	(async {	2244	(async {
		2245	my $map = eval {
1828	my $map = cf::map::find $path;	2246	my $map = cf::map::find $path;
		2247
		2248	if ($map) {
1829	$map = $map->customise_for ($self) if $map;	2249	$map = $map->customise_for ($self);
1830		2250	$map = $check->($map) if $check && $map;
1831	# warn "entering ", $map->path, " at ($x, $y)\n"	2251	} else {
1832	# if $map;
1833
1834	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2252	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2253	}
1835		2254
		2255	$map
		2256	};
		2257
		2258	if ($@) {
		2259	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2260	LOG llevError | logBacktrace, Carp::longmess $@;
		2261	}
		2262
		2263	if ($gen == $self->{_goto_generation}) {
		2264	delete $self->{_goto_generation};
1836	$self->leave_link ($map, $x, $y);	2265	$self->leave_link ($map, $x, $y);
		2266	}
1837	})->prio (1);	2267	})->prio (1);
1838	}	2268	}
1839		2269
1840	=item $player_object->enter_exit ($exit_object)	2270	=item $player_object->enter_exit ($exit_object)
1841		2271
…		…
1870	# that depends on the exit object	2300	# that depends on the exit object
1871		2301
1872	my $rmp = parse_random_map_params $exit->msg;	2302	my $rmp = parse_random_map_params $exit->msg;
1873		2303
1874	if ($exit->map) {	2304	if ($exit->map) {
1875	$rmp->{region} = $exit->map->region_name;	2305	$rmp->{region} = $exit->region->name;
1876	$rmp->{origin_map} = $exit->map->path;	2306	$rmp->{origin_map} = $exit->map->path;
1877	$rmp->{origin_x} = $exit->x;	2307	$rmp->{origin_x} = $exit->x;
1878	$rmp->{origin_y} = $exit->y;	2308	$rmp->{origin_y} = $exit->y;
1879	}	2309	}
1880		2310
1881	$rmp->{random_seed} ||= $exit->random_seed;	2311	$rmp->{random_seed} ||= $exit->random_seed;
1882		2312
1883	my $data = cf::to_json $rmp;	2313	my $data = cf::to_json $rmp;
1884	my $md5 = Digest::MD5::md5_hex $data;	2314	my $md5 = Digest::MD5::md5_hex $data;
1885	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2315	my $meta = "$RANDOMDIR/$md5.meta";
1886		2316
1887	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2317	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1888	aio_write $fh, 0, (length $data), $data, 0;	2318	aio_write $fh, 0, (length $data), $data, 0;
1889	undef $fh;	2319	undef $fh;
1890	aio_rename "$meta~", $meta;	2320	aio_rename "$meta~", $meta;
…		…
1897	sub cf::object::player::enter_exit {	2327	sub cf::object::player::enter_exit {
1898	my ($self, $exit) = @_;	2328	my ($self, $exit) = @_;
1899		2329
1900	return unless $self->type == cf::PLAYER;	2330	return unless $self->type == cf::PLAYER;
1901		2331
		2332	if ($exit->slaying eq "/!") {
		2333	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2334	# the problem is that $exit might not survive long enough
		2335	# so it needs to be done right now, right here
		2336	cf::sync_job { prepare_random_map $exit };
		2337	}
		2338
		2339	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2340	my $hp = $exit->stats->hp;
		2341	my $sp = $exit->stats->sp;
		2342
1902	$self->enter_link;	2343	$self->enter_link;
1903		2344
1904	(async {	2345	(async {
1905	$self->deactivate_recursive; # just to be sure	2346	$self->deactivate_recursive; # just to be sure
1906	unless (eval {	2347	unless (eval {
1907	prepare_random_map $exit	2348	$self->goto ($slaying, $hp, $sp);
1908	if $exit->slaying eq "/!";
1909
1910	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1911	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1912		2349
1913	1;	2350	1;
1914	}) {	2351	}) {
1915	$self->message ("Something went wrong deep within the crossfire server. "	2352	$self->message ("Something went wrong deep within the crossfire server. "
1916	. "I'll try to bring you back to the map you were before. "	2353	. "I'll try to bring you back to the map you were before. "
1917	. "Please report this to the dungeon master!",	2354	. "Please report this to the dungeon master!",
1918	cf::NDI_UNIQUE | cf::NDI_RED);	2355	cf::NDI_UNIQUE | cf::NDI_RED);
1919		2356
1920	warn "ERROR in enter_exit: $@";	2357	warn "ERROR in enter_exit: $@";
1921	$self->leave_link;	2358	$self->leave_link;
1922	}	2359	}
1923	})->prio (1);	2360	})->prio (1);
…		…
1936		2373
1937	sub cf::client::send_drawinfo {	2374	sub cf::client::send_drawinfo {
1938	my ($self, $text, $flags) = @_;	2375	my ($self, $text, $flags) = @_;
1939		2376
1940	utf8::encode $text;	2377	utf8::encode $text;
1941	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2378	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1942	}	2379	}
1943		2380
		2381	=item $client->send_msg ($color, $type, $msg, [extra...])
		2382
		2383	Send a drawinfo or msg packet to the client, formatting the msg for the
		2384	client if neccessary. C<$type> should be a string identifying the type of
		2385	the message, with C<log> being the default. If C<$color> is negative, suppress
		2386	the message unless the client supports the msg packet.
		2387
		2388	=cut
		2389
		2390	sub cf::client::send_msg {
		2391	my ($self, $color, $type, $msg, @extra) = @_;
		2392
		2393	$msg = $self->pl->expand_cfpod ($msg);
		2394
		2395	if ($self->can_msg) {
		2396	$self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
		2397	} else {
		2398	# replace some tags by gcfclient-compatible ones
		2399	for ($msg) {
		2400	1 while
		2401	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2402	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2403	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2404	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2405	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2406	}
		2407
		2408	if ($color >= 0) {
		2409	if (0 && $msg =~ /\[/) {
		2410	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2411	} else {
		2412	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2413	$self->send_packet ("drawinfo $color $msg")
		2414	}
		2415	}
		2416	}
		2417	}
		2418
		2419	=item $client->ext_event ($type, %msg)
		2420
		2421	Sends an ext event to the client.
		2422
		2423	=cut
		2424
		2425	sub cf::client::ext_event($$%) {
		2426	my ($self, $type, %msg) = @_;
		2427
		2428	$msg{msgtype} = "event_$type";
		2429	$self->send_packet ("ext " . cf::to_json \%msg);
		2430	}
1944		2431
1945	=item $success = $client->query ($flags, "text", \&cb)	2432	=item $success = $client->query ($flags, "text", \&cb)
1946		2433
1947	Queues a query to the client, calling the given callback with	2434	Queues a query to the client, calling the given callback with
1948	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2435	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1949	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2436	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1950		2437
1951	Queries can fail, so check the return code. Or don't, as queries will become	2438	Queries can fail, so check the return code. Or don't, as queries will
1952	reliable at some point in the future.	2439	become reliable at some point in the future.
1953		2440
1954	=cut	2441	=cut
1955		2442
1956	sub cf::client::query {	2443	sub cf::client::query {
1957	my ($self, $flags, $text, $cb) = @_;	2444	my ($self, $flags, $text, $cb) = @_;
…		…
1965	utf8::encode $text;	2452	utf8::encode $text;
1966	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2453	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1967		2454
1968	$self->send_packet ($self->{query_queue}[0][0])	2455	$self->send_packet ($self->{query_queue}[0][0])
1969	if @{ $self->{query_queue} } == 1;	2456	if @{ $self->{query_queue} } == 1;
		2457
		2458	1
1970	}	2459	}
1971		2460
1972	cf::client->attach (	2461	cf::client->attach (
1973	on_reply => sub {	2462	on_reply => sub {
1974	my ($ns, $msg) = @_;	2463	my ($ns, $msg) = @_;
…		…
1977	# get handled first	2466	# get handled first
1978	my $queue = delete $ns->{query_queue}	2467	my $queue = delete $ns->{query_queue}
1979	or return; # be conservative, not sure how that can happen, but we saw a crash here	2468	or return; # be conservative, not sure how that can happen, but we saw a crash here
1980		2469
1981	(shift @$queue)->[1]->($msg);	2470	(shift @$queue)->[1]->($msg);
		2471	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1982		2472
1983	push @{ $ns->{query_queue} }, @$queue;	2473	push @{ $ns->{query_queue} }, @$queue;
1984		2474
1985	if (@{ $ns->{query_queue} } == @$queue) {	2475	if (@{ $ns->{query_queue} } == @$queue) {
1986	if (@$queue) {	2476	if (@$queue) {
…		…
1988	} else {	2478	} else {
1989	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2479	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1990	}	2480	}
1991	}	2481	}
1992	},	2482	},
		2483	on_exticmd => sub {
		2484	my ($ns, $buf) = @_;
		2485
		2486	my $msg = eval { from_json $buf };
		2487
		2488	if (ref $msg) {
		2489	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2490	if (my %reply = $cb->($ns, $msg)) {
		2491	$reply{msgid} = $msg->{msgid};
		2492	$ns->send ("ext " . cf::to_json \%reply);
		2493	}
		2494	}
		2495	} else {
		2496	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2497	}
		2498
		2499	cf::override;
		2500	},
1993	);	2501	);
1994		2502
1995	=item $client->async (\&cb)	2503	=item $client->async (\&cb)
1996		2504
1997	Create a new coroutine, running the specified callback. The coroutine will	2505	Create a new coroutine, running the specified callback. The coroutine will
…		…
2044		2552
2045	# here we export the classes and methods available to script code	2553	# here we export the classes and methods available to script code
2046		2554
2047	=pod	2555	=pod
2048		2556
2049	The following fucntions and emthods are available within a safe environment:	2557	The following functions and methods are available within a safe environment:
2050		2558
2051	cf::object contr pay_amount pay_player map	2559	cf::object contr pay_amount pay_player map
2052	cf::object::player player	2560	cf::object::player player
2053	cf::player peaceful	2561	cf::player peaceful
2054	cf::map trigger	2562	cf::map trigger
…		…
2135	=back	2643	=back
2136		2644
2137	=cut	2645	=cut
2138		2646
2139	#############################################################################	2647	#############################################################################
		2648	# the server's init and main functions
2140		2649
2141	=head2 EXTENSION DATABASE SUPPORT	2650	sub load_facedata($) {
		2651	my ($path) = @_;
2142		2652
2143	Crossfire maintains a very simple database for extension use. It can	2653	warn "loading facedata from $path\n";
2144	currently store anything that can be serialised using Storable, which
2145	excludes objects.
2146		2654
2147	The parameter C<$family> should best start with the name of the extension	2655	my $facedata;
2148	using it, it should be unique.	2656	0 < aio_load $path, $facedata
		2657	or die "$path: $!";
2149		2658
2150	=over 4	2659	$facedata = Coro::Storable::thaw $facedata;
2151		2660
2152	=item $hashref = cf::db_get $family	2661	$facedata->{version} == 2
		2662	or cf::cleanup "$path: version mismatch, cannot proceed.";
2153		2663
2154	Return a hashref for use by the extension C<$family>, which can be
2155	modified. After modifications, you have to call C<cf::db_dirty> or
2156	C<cf::db_sync>.
2157
2158	=item $value = cf::db_get $family => $key
2159
2160	Returns a single value from the database
2161
2162	=item cf::db_put $family => $hashref
2163
2164	Stores the given family hashref into the database. Updates are delayed, if
2165	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2166
2167	=item cf::db_put $family => $key => $value
2168
2169	Stores the given C<$value> in the family hash. Updates are delayed, if you
2170	want the data to be synced to disk immediately, use C<cf::db_sync>.
2171
2172	=item cf::db_dirty
2173
2174	Marks the database as dirty, to be updated at a later time.
2175
2176	=item cf::db_sync
2177
2178	Immediately write the database to disk I<if it is dirty>.
2179
2180	=cut
2181
2182	our $DB;
2183
2184	{
2185	my $path = cf::localdir . "/database.pst";
2186
2187	sub db_load() {
2188	$DB = stat $path ? Storable::retrieve $path : { };
2189	}	2664	{
		2665	my $faces = $facedata->{faceinfo};
2190		2666
2191	my $pid;	2667	while (my ($face, $info) = each %$faces) {
2192		2668	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2193	sub db_save() {	2669	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2194	waitpid $pid, 0 if $pid;	2670	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2195	if (0 == ($pid = fork)) {	2671	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2196	$DB->{_meta}{version} = 1;	2672	Coro::cede;
2197	Storable::nstore $DB, "$path~";
2198	rename "$path~", $path;
2199	cf::_exit 0 if defined $pid;
2200	}
2201	}
2202
2203	my $dirty;
2204
2205	sub db_sync() {
2206	db_save if $dirty;
2207	undef $dirty;
2208	}
2209
2210	my $idle = Event->idle (min => 10, max => 20, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2211	db_sync;
2212	});
2213
2214	sub db_dirty() {
2215	$dirty = 1;
2216	$idle->start;
2217	}
2218
2219	sub db_get($;$) {
2220	@_ >= 2
2221	? $DB->{$_[0]}{$_[1]}
2222	: ($DB->{$_[0]} ||= { })
2223	}
2224
2225	sub db_put($$;$) {
2226	if (@_ >= 3) {
2227	$DB->{$_[0]}{$_[1]} = $_[2];
2228	} else {
2229	$DB->{$_[0]} = $_[1];
2230	}
2231	db_dirty;
2232	}
2233
2234	cf::global->attach (
2235	prio => 10000,
2236	on_cleanup => sub {
2237	db_sync;
2238	},	2673	}
2239	);
2240	}
2241		2674
2242	#############################################################################	2675	while (my ($face, $info) = each %$faces) {
2243	# the server's main()	2676	next unless $info->{smooth};
		2677	my $idx = cf::face::find $face
		2678	or next;
		2679	if (my $smooth = cf::face::find $info->{smooth}) {
		2680	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2681	} else {
		2682	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2683	}
		2684	Coro::cede;
		2685	}
		2686	}
		2687
		2688	{
		2689	my $anims = $facedata->{animinfo};
		2690
		2691	while (my ($anim, $info) = each %$anims) {
		2692	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2693	Coro::cede;
		2694	}
		2695
		2696	cf::anim::invalidate_all; # d'oh
		2697	}
		2698
		2699	1
		2700	}
		2701
		2702	sub reload_regions {
		2703	load_resource_file "$MAPDIR/regions"
		2704	or die "unable to load regions file\n";
		2705	}
		2706
		2707	sub reload_facedata {
		2708	load_facedata "$DATADIR/facedata"
		2709	or die "unable to load facedata\n";
		2710	}
		2711
		2712	sub reload_archetypes {
		2713	load_resource_file "$DATADIR/archetypes"
		2714	or die "unable to load archetypes\n";
		2715	#d# NEED to laod twice to resolve forward references
		2716	# this really needs to be done in an extra post-pass
		2717	# (which needs to be synchronous, so solve it differently)
		2718	load_resource_file "$DATADIR/archetypes"
		2719	or die "unable to load archetypes\n";
		2720	}
		2721
		2722	sub reload_treasures {
		2723	load_resource_file "$DATADIR/treasures"
		2724	or die "unable to load treasurelists\n";
		2725	}
		2726
		2727	sub reload_resources {
		2728	warn "reloading resource files...\n";
		2729
		2730	reload_regions;
		2731	reload_facedata;
		2732	#reload_archetypes;#d#
		2733	reload_archetypes;
		2734	reload_treasures;
		2735
		2736	warn "finished reloading resource files\n";
		2737	}
		2738
		2739	sub init {
		2740	reload_resources;
		2741	}
2244		2742
2245	sub cfg_load {	2743	sub cfg_load {
2246	open my $fh, "<:utf8", cf::confdir . "/config"	2744	open my $fh, "<:utf8", "$CONFDIR/config"
2247	or return;	2745	or return;
2248		2746
2249	local $/;	2747	local $/;
2250	*CFG = YAML::Syck::Load <$fh>;	2748	*CFG = YAML::Syck::Load <$fh>;
2251		2749
…		…
2271	Event::one_event;	2769	Event::one_event;
2272	})->prio (Coro::PRIO_MAX);	2770	})->prio (Coro::PRIO_MAX);
2273	};	2771	};
2274		2772
2275	cfg_load;	2773	cfg_load;
2276	db_load;	2774	db_init;
2277	load_extensions;	2775	load_extensions;
2278		2776
2279	$TICK_WATCHER->start;	2777	$TICK_WATCHER->start;
2280	Event::loop;	2778	Event::loop;
2281	}	2779	}
…		…
2285		2783
2286	# install some emergency cleanup handlers	2784	# install some emergency cleanup handlers
2287	BEGIN {	2785	BEGIN {
2288	for my $signal (qw(INT HUP TERM)) {	2786	for my $signal (qw(INT HUP TERM)) {
2289	Event->signal (	2787	Event->signal (
		2788	reentrant => 0,
2290	data => WF_AUTOCANCEL,	2789	data => WF_AUTOCANCEL,
2291	signal => $signal,	2790	signal => $signal,
		2791	prio => 0,
2292	cb => sub {	2792	cb => sub {
2293	cf::cleanup "SIG$signal";	2793	cf::cleanup "SIG$signal";
2294	},	2794	},
2295	);	2795	);
2296	}	2796	}
		2797	}
		2798
		2799	sub write_runtime {
		2800	my $runtime = "$LOCALDIR/runtime";
		2801
		2802	# first touch the runtime file to show we are still running:
		2803	# the fsync below can take a very very long time.
		2804
		2805	IO::AIO::aio_utime $runtime, undef, undef;
		2806
		2807	my $guard = cf::lock_acquire "write_runtime";
		2808
		2809	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2810	or return;
		2811
		2812	my $value = $cf::RUNTIME + 90 + 10;
		2813	# 10 is the runtime save interval, for a monotonic clock
		2814	# 60 allows for the watchdog to kill the server.
		2815
		2816	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2817	and return;
		2818
		2819	# always fsync - this file is important
		2820	aio_fsync $fh
		2821	and return;
		2822
		2823	# touch it again to show we are up-to-date
		2824	aio_utime $fh, undef, undef;
		2825
		2826	close $fh
		2827	or return;
		2828
		2829	aio_rename "$runtime~", $runtime
		2830	and return;
		2831
		2832	warn "runtime file written.\n";
		2833
		2834	1
2297	}	2835	}
2298		2836
2299	sub emergency_save() {	2837	sub emergency_save() {
2300	my $freeze_guard = cf::freeze_mainloop;	2838	my $freeze_guard = cf::freeze_mainloop;
2301		2839
…		…
2318	my $map = $cf::MAP{$path} or next;	2856	my $map = $cf::MAP{$path} or next;
2319	$map->valid or next;	2857	$map->valid or next;
2320	$map->save;	2858	$map->save;
2321	}	2859	}
2322	warn "end emergency map save\n";	2860	warn "end emergency map save\n";
		2861
		2862	warn "begin emergency database checkpoint\n";
		2863	BDB::db_env_txn_checkpoint $DB_ENV;
		2864	warn "end emergency database checkpoint\n";
2323	};	2865	};
2324		2866
2325	warn "leave emergency perl save\n";	2867	warn "leave emergency perl save\n";
2326	}	2868	}
2327		2869
		2870	sub post_cleanup {
		2871	my ($make_core) = @_;
		2872
		2873	warn Carp::longmess "post_cleanup backtrace"
		2874	if $make_core;
		2875	}
		2876
2328	sub reload() {	2877	sub do_reload_perl() {
2329	# can/must only be called in main	2878	# can/must only be called in main
2330	if ($Coro::current != $Coro::main) {	2879	if ($Coro::current != $Coro::main) {
2331	warn "can only reload from main coroutine";	2880	warn "can only reload from main coroutine";
2332	return;	2881	return;
2333	}	2882	}
2334		2883
2335	warn "reloading...";	2884	warn "reloading...";
2336		2885
2337	warn "cancelling server ticker";	2886	warn "entering sync_job";
2338	$TICK_WATCHER->cancel;
2339		2887
		2888	cf::sync_job {
		2889	cf::write_runtime; # external watchdog should not bark
2340	cf::emergency_save;	2890	cf::emergency_save;
		2891	cf::write_runtime; # external watchdog should not bark
2341		2892
2342	eval {	2893	warn "syncing database to disk";
		2894	BDB::db_env_txn_checkpoint $DB_ENV;
		2895
2343	# if anything goes wrong in here, we should simply crash as we already saved	2896	# if anything goes wrong in here, we should simply crash as we already saved
2344
2345	warn "syncing database to disk";
2346	cf::db_sync;
2347		2897
2348	warn "cancelling all WF_AUTOCANCEL watchers";	2898	warn "cancelling all WF_AUTOCANCEL watchers";
2349	for (Event::all_watchers) {	2899	for (Event::all_watchers) {
2350	$_->cancel if $_->data & WF_AUTOCANCEL;	2900	$_->cancel if $_->data & WF_AUTOCANCEL;
2351	}	2901	}
2352		2902
2353	warn "flushing outstanding aio requests";	2903	warn "flushing outstanding aio requests";
2354	for (;;) {	2904	for (;;) {
		2905	BDB::flush;
2355	IO::AIO::flush;	2906	IO::AIO::flush;
2356	Coro::cede;	2907	Coro::cede;
2357	last unless IO::AIO::nreqs;	2908	last unless IO::AIO::nreqs || BDB::nreqs;
2358	warn "iterate...";	2909	warn "iterate...";
2359	}	2910	}
		2911
		2912	++$RELOAD;
2360		2913
2361	warn "cancelling all extension coros";	2914	warn "cancelling all extension coros";
2362	$_->cancel for values %EXT_CORO;	2915	$_->cancel for values %EXT_CORO;
2363	%EXT_CORO = ();	2916	%EXT_CORO = ();
2364		2917
2365	warn "removing commands";	2918	warn "removing commands";
2366	%COMMAND = ();	2919	%COMMAND = ();
2367		2920
2368	warn "removing ext commands";	2921	warn "removing ext/exti commands";
2369	%EXTCMD = ();	2922	%EXTCMD = ();
		2923	%EXTICMD = ();
2370		2924
2371	warn "unloading/nuking all extensions";	2925	warn "unloading/nuking all extensions";
2372	for my $pkg (@EXTS) {	2926	for my $pkg (@EXTS) {
2373	warn "... unloading $pkg";	2927	warn "... unloading $pkg";
2374		2928
…		…
2404	Symbol::delete_package "safe::$_"	2958	Symbol::delete_package "safe::$_"
2405	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2959	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2406		2960
2407	warn "unloading cf.pm \"a bit\"";	2961	warn "unloading cf.pm \"a bit\"";
2408	delete $INC{"cf.pm"};	2962	delete $INC{"cf.pm"};
		2963	delete $INC{"cf/pod.pm"};
2409		2964
2410	# don't, removes xs symbols, too,	2965	# don't, removes xs symbols, too,
2411	# and global variables created in xs	2966	# and global variables created in xs
2412	#Symbol::delete_package __PACKAGE__;	2967	#Symbol::delete_package __PACKAGE__;
2413		2968
…		…
2417	require cf;	2972	require cf;
2418	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2973	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2419		2974
2420	warn "loading config and database again";	2975	warn "loading config and database again";
2421	cf::cfg_load;	2976	cf::cfg_load;
2422	cf::db_load;
2423		2977
2424	warn "loading extensions";	2978	warn "loading extensions";
2425	cf::load_extensions;	2979	cf::load_extensions;
2426		2980
2427	warn "reattaching attachments to objects/players";	2981	warn "reattaching attachments to objects/players";
2428	_global_reattach;	2982	_global_reattach; # objects, sockets
2429	warn "reattaching attachments to maps";	2983	warn "reattaching attachments to maps";
2430	reattach $_ for values %MAP;	2984	reattach $_ for values %MAP;
		2985	warn "reattaching attachments to players";
		2986	reattach $_ for values %PLAYER;
2431		2987
2432	warn "restarting server ticker";	2988	warn "leaving sync_job";
2433		2989
2434	$TICK_WATCHER->start;	2990	1
2435	};	2991	} or do {
2436
2437	if ($@) {
2438	warn $@;	2992	warn $@;
2439	warn "error while reloading, exiting.";	2993	warn "error while reloading, exiting.";
2440	exit 1;	2994	exit 1;
2441	}	2995	};
2442		2996
2443	warn "reloaded";	2997	warn "reloaded";
2444	};	2998	};
2445		2999
2446	our $RELOAD_WATCHER; # used only during reload	3000	our $RELOAD_WATCHER; # used only during reload
2447		3001
		3002	sub reload_perl() {
		3003	# doing reload synchronously and two reloads happen back-to-back,
		3004	# coro crashes during coro_state_free->destroy here.
		3005
		3006	$RELOAD_WATCHER ||= Event->timer (
		3007	reentrant => 0,
		3008	after => 0,
		3009	data => WF_AUTOCANCEL,
		3010	cb => sub {
		3011	do_reload_perl;
		3012	undef $RELOAD_WATCHER;
		3013	},
		3014	);
		3015	}
		3016
2448	register_command "reload" => sub {	3017	register_command "reload" => sub {
2449	my ($who, $arg) = @_;	3018	my ($who, $arg) = @_;
2450		3019
2451	if ($who->flag (FLAG_WIZ)) {	3020	if ($who->flag (FLAG_WIZ)) {
2452	$who->message ("reloading server.");	3021	$who->message ("reloading server.");
2453		3022	async { reload_perl };
2454	# doing reload synchronously and two reloads happen back-to-back,
2455	# coro crashes during coro_state_free->destroy here.
2456
2457	$RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub {
2458	reload;
2459	undef $RELOAD_WATCHER;
2460	});
2461	}	3023	}
2462	};	3024	};
2463		3025
2464	unshift @INC, $LIBDIR;	3026	unshift @INC, $LIBDIR;
2465		3027
2466	my $bug_warning = 0;	3028	my $bug_warning = 0;
2467		3029
		3030	our @WAIT_FOR_TICK;
		3031	our @WAIT_FOR_TICK_BEGIN;
		3032
		3033	sub wait_for_tick {
		3034	return unless $TICK_WATCHER->is_active;
		3035	return if $Coro::current == $Coro::main;
		3036
		3037	my $signal = new Coro::Signal;
		3038	push @WAIT_FOR_TICK, $signal;
		3039	$signal->wait;
		3040	}
		3041
		3042	sub wait_for_tick_begin {
		3043	return unless $TICK_WATCHER->is_active;
		3044	return if $Coro::current == $Coro::main;
		3045
		3046	my $signal = new Coro::Signal;
		3047	push @WAIT_FOR_TICK_BEGIN, $signal;
		3048	$signal->wait;
		3049	}
		3050
		3051	my $min = 1e6;#d#
		3052	my $avg = 10;
2468	$TICK_WATCHER = Event->timer (	3053	$TICK_WATCHER = Event->timer (
2469	reentrant => 0,	3054	reentrant => 0,
2470	parked => 1,	3055	parked => 1,
2471	prio => 0,	3056	prio => 0,
2472	at => $NEXT_TICK || $TICK,	3057	at => $NEXT_TICK || $TICK,
…		…
2476	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3061	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2477	unless ++$bug_warning > 10;	3062	unless ++$bug_warning > 10;
2478	return;	3063	return;
2479	}	3064	}
2480		3065
2481	$NOW = Event::time;	3066	$NOW = $tick_start = Event::time;
2482		3067
2483	cf::server_tick; # one server iteration	3068	cf::server_tick; # one server iteration
		3069
		3070	0 && sync_job {#d#
		3071	for(1..10) {
		3072	my $t = Event::time;
		3073	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3074	or die;
		3075
		3076	$map->width (50);
		3077	$map->height (50);
		3078	$map->alloc;
		3079	$map->_load_objects ("/tmp/x.map", 1);
		3080	my $t = Event::time - $t;
		3081
		3082	#next unless $t < 0.0013;#d#
		3083	if ($t < $min) {
		3084	$min = $t;
		3085	}
		3086	$avg = $avg * 0.99 + $t * 0.01;
		3087	}
		3088	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3089	exit 0;
		3090	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3091	};
		3092
2484	$RUNTIME += $TICK;	3093	$RUNTIME += $TICK;
2485	$NEXT_TICK += $TICK;	3094	$NEXT_TICK += $TICK;
2486		3095
2487	$WAIT_FOR_TICK->broadcast;	3096	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2488	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3097	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3098	Coro::async_pool {
		3099	write_runtime
		3100	or warn "ERROR: unable to write runtime file: $!";
		3101	};
		3102	}
		3103
		3104	# my $AFTER = Event::time;
		3105	# warn $AFTER - $NOW;#d#
		3106
		3107	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3108	$sig->send;
		3109	}
		3110	while (my $sig = shift @WAIT_FOR_TICK) {
		3111	$sig->send;
		3112	}
		3113
		3114	$NOW = Event::time;
2489		3115
2490	# if we are delayed by four ticks or more, skip them all	3116	# if we are delayed by four ticks or more, skip them all
2491	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3117	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2492		3118
2493	$TICK_WATCHER->at ($NEXT_TICK);	3119	$TICK_WATCHER->at ($NEXT_TICK);
2494	$TICK_WATCHER->start;	3120	$TICK_WATCHER->start;
		3121
		3122	$LOAD = ($NOW - $tick_start) / $TICK;
		3123	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3124
		3125	_post_tick;
		3126
		3127
2495	},	3128	},
2496	);	3129	);
2497		3130
		3131	{
		3132	BDB::max_poll_time $TICK * 0.1;
		3133	$BDB_POLL_WATCHER = Event->io (
		3134	reentrant => 0,
		3135	fd => BDB::poll_fileno,
		3136	poll => 'r',
		3137	prio => 0,
		3138	data => WF_AUTOCANCEL,
		3139	cb => \&BDB::poll_cb,
		3140	);
		3141	BDB::min_parallel 8;
		3142
		3143	BDB::set_sync_prepare {
		3144	my $status;
		3145	my $current = $Coro::current;
		3146	(
		3147	sub {
		3148	$status = $!;
		3149	$current->ready; undef $current;
		3150	},
		3151	sub {
		3152	Coro::schedule while defined $current;
		3153	$! = $status;
		3154	},
		3155	)
		3156	};
		3157
		3158	unless ($DB_ENV) {
		3159	$DB_ENV = BDB::db_env_create;
		3160
		3161	cf::sync_job {
		3162	eval {
		3163	BDB::db_env_open
		3164	$DB_ENV,
		3165	$BDBDIR,
		3166	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3167	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3168	0666;
		3169
		3170	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3171
		3172	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3173	$DB_ENV->set_lk_detect;
		3174	};
		3175
		3176	cf::cleanup "db_env_open(db): $@" if $@;
		3177	};
		3178	}
		3179	}
		3180
		3181	{
		3182	IO::AIO::min_parallel 8;
		3183
		3184	undef $Coro::AIO::WATCHER;
2498	IO::AIO::max_poll_time $TICK * 0.2;	3185	IO::AIO::max_poll_time $TICK * 0.1;
2499
2500	$AIO_POLL_WATCHER = Event->io (	3186	$AIO_POLL_WATCHER = Event->io (
2501	fd => IO::AIO::poll_fileno,	3187	reentrant => 0,
2502	poll => 'r',
2503	prio => 5,
2504	data => WF_AUTOCANCEL,
2505	cb => \&IO::AIO::poll_cb,
2506	);
2507
2508	$WRITE_RUNTIME_WATCHER = Event->timer (
2509	data => WF_AUTOCANCEL,	3188	data => WF_AUTOCANCEL,
2510	after => 1,	3189	fd => IO::AIO::poll_fileno,
2511	interval => 10,	3190	poll => 'r',
2512	prio => 6, # keep it lowest so it acts like a watchdog	3191	prio => 6,
2513	cb => Coro::unblock_sub {	3192	cb => \&IO::AIO::poll_cb,
2514	write_runtime	3193	);
2515	or warn "ERROR: unable to write runtime file: $!";	3194	}
		3195
		3196	my $_log_backtrace;
		3197
		3198	sub _log_backtrace {
		3199	my ($msg, @addr) = @_;
		3200
		3201	$msg =~ s/\n//;
		3202
		3203	# limit the # of concurrent backtraces
		3204	if ($_log_backtrace < 2) {
		3205	++$_log_backtrace;
		3206	async {
		3207	my @bt = fork_call {
		3208	@addr = map { sprintf "%x", $_ } @addr;
		3209	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3210	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3211	or die "addr2line: $!";
		3212
		3213	my @funcs;
		3214	my @res = <$fh>;
		3215	chomp for @res;
		3216	while (@res) {
		3217	my ($func, $line) = splice @res, 0, 2, ();
		3218	push @funcs, "[$func] $line";
		3219	}
		3220
		3221	@funcs
		3222	};
		3223
		3224	LOG llevInfo, "[ABT] $msg\n";
		3225	LOG llevInfo, "[ABT] $_\n" for @bt;
		3226	--$_log_backtrace;
		3227	};
		3228	} else {
		3229	LOG llevInfo, "[ABT] $msg\n";
		3230	LOG llevInfo, "[ABT] [suppressed]\n";
2516	},	3231	}
2517	);	3232	}
		3233
		3234	# load additional modules
		3235	use cf::pod;
2518		3236
2519	END { cf::emergency_save }	3237	END { cf::emergency_save }
2520		3238
2521	1	3239	1
2522		3240

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