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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.96 by root, Fri Dec 22 06:02:29 2006 UTC vs.
Revision 1.324 by root, Sat Jul 28 14:23:17 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;	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
19	use IO::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24
		25	use JSON::XS 1.4 ();
		26	use BDB ();
		27	use Data::Dumper;
		28	use Digest::MD5;
		29	use Fcntl;
20	use YAML::Syck ();	30	use YAML::Syck ();
		31	use IO::AIO 2.32 ();
21	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
		34	use Digest::MD5 ();
22		35
		36	# configure various modules to our taste
		37	#
		38	$Storable::canonical = 1; # reduce rsync transfers
		39	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		40	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		41
23	use Event; $Event::Eval = 1; # no idea why this is required, but it is	42	$Event::Eval = 1; # no idea why this is required, but it is
24		43
25	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
26	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
27		46
28	$Coro::main->prio (Coro::PRIO_MIN);	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
29		48
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		50
32	our %COMMAND = ();	51	our %COMMAND = ();
33	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
		53
		54	our @EXTS = (); # list of extension package names
34	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
		57	our %EXT_CORO = (); # coroutines bound to extensions
		58	our %EXT_MAP = (); # pluggable maps
35		59
36	_init_vars;	60	our $RELOAD; # number of reloads so far
37
38	our @EVENT;	61	our @EVENT;
39	our $LIBDIR = datadir . "/ext";
40		62
41	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74
		75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
42	our $TICK_WATCHER;	76	our $TICK_WATCHER;
		77	our $AIO_POLL_WATCHER;
		78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
43	our $NEXT_TICK;	79	our $NEXT_TICK;
		80	our $NOW;
		81	our $USE_FSYNC = 1; # use fsync to write maps - default off
		82
		83	our $BDB_POLL_WATCHER;
		84	our $DB_ENV;
44		85
45	our %CFG;	86	our %CFG;
46		87
47	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
		89	our $RUNTIME;
		90
		91	our %PLAYER; # all users
		92	our %MAP; # all maps
		93	our $LINK_MAP; # the special {link} map, which is always available
		94
		95	# used to convert map paths into valid unix filenames by replacing / by ∕
		96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		97
		98	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		99	our $LOADAVG; # same thing, but with alpha-smoothing
		100	our $tick_start; # for load detecting purposes
		101
		102	binmode STDOUT;
		103	binmode STDERR;
		104
		105	# read virtual server time, if available
		106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
		107	open my $fh, "<", "$LOCALDIR/runtime"
		108	or die "unable to read runtime file: $!";
		109	$RUNTIME = <$fh> + 0.;
		110	}
		111
		112	mkdir $_
		113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		114
		115	our $EMERGENCY_POSITION;
		116
		117	sub cf::map::normalise;
48		118
49	#############################################################################	119	#############################################################################
50		120
51	=head2 GLOBAL VARIABLES	121	=head2 GLOBAL VARIABLES
52		122
…		…
54		124
55	=item $cf::UPTIME	125	=item $cf::UPTIME
56		126
57	The timestamp of the server start (so not actually an uptime).	127	The timestamp of the server start (so not actually an uptime).
58		128
59	=item $cf::LIBDIR	129	=item $cf::RUNTIME
60		130
61	The perl library directory, where extensions and cf-specific modules can	131	The time this server has run, starts at 0 and is increased by $cf::TICK on
62	be found. It will be added to C<@INC> automatically.	132	every server tick.
		133
		134	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		135	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		136	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
		137
		138	Various directories - "/etc", read-only install directory, perl-library
		139	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		140	unique-items directory, player file directory, random maps directory and
		141	database environment.
		142
		143	=item $cf::NOW
		144
		145	The time of the last (current) server tick.
63		146
64	=item $cf::TICK	147	=item $cf::TICK
65		148
66	The interval between server ticks, in seconds.	149	The interval between server ticks, in seconds.
		150
		151	=item $cf::LOADAVG
		152
		153	The current CPU load on the server (alpha-smoothed), as a value between 0
		154	(none) and 1 (overloaded), indicating how much time is spent on processing
		155	objects per tick. Healthy values are < 0.5.
		156
		157	=item $cf::LOAD
		158
		159	The raw value load value from the last tick.
67		160
68	=item %cf::CFG	161	=item %cf::CFG
69		162
70	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
71	from wherever your confdir points to.	164	from wherever your confdir points to.
		165
		166	=item cf::wait_for_tick, cf::wait_for_tick_begin
		167
		168	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		169	returns directly I<after> the tick processing (and consequently, can only wake one process
		170	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		171
		172	=item @cf::INVOKE_RESULTS
		173
		174	This array contains the results of the last C<invoke ()> call. When
		175	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		176	that call.
72		177
73	=back	178	=back
74		179
75	=cut	180	=cut
76		181
77	BEGIN {	182	BEGIN {
78	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
79	my $msg = join "", @_;	184	my $msg = join "", @_;
		185
80	$msg .= "\n"	186	$msg .= "\n"
81	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
82		188
83	print STDERR "cfperl: $msg";	189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
84	LOG llevError, "cfperl: $msg";	192	LOG llevError, $msg;
85	};	193	};
86	}	194	}
87		195
88	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
89	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
90	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
91	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
92	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	200	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		201	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
93	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	202	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
94		203
95	# we bless all objects into (empty) derived classes to force a method lookup	204	# we bless all objects into (empty) derived classes to force a method lookup
96	# within the Safe compartment.	205	# within the Safe compartment.
97	for my $pkg (qw(	206	for my $pkg (qw(
98	cf::global	207	cf::global cf::attachable
99	cf::object cf::object::player	208	cf::object cf::object::player
100	cf::client cf::player	209	cf::client cf::player
101	cf::arch cf::living	210	cf::arch cf::living
102	cf::map cf::party cf::region	211	cf::map cf::party cf::region
103	)) {	212	)) {
…		…
107		216
108	$Event::DIED = sub {	217	$Event::DIED = sub {
109	warn "error in event callback: @_";	218	warn "error in event callback: @_";
110	};	219	};
111		220
112	my %ext_pkg;	221	#############################################################################
113	my @exts;
114	my @hook;
115		222
116	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
117		224
118	=over 4	225	=over 4
119		226
120	=cut	227	=item dumpval $ref
121		228
122	use JSON::Syck (); # TODO# replace by JSON::PC once working	229	=cut
		230
		231	sub dumpval {
		232	eval {
		233	local $SIG{__DIE__};
		234	my $d;
		235	if (1) {
		236	$d = new Data::Dumper([$_[0]], ["*var"]);
		237	$d->Terse(1);
		238	$d->Indent(2);
		239	$d->Quotekeys(0);
		240	$d->Useqq(1);
		241	#$d->Bless(...);
		242	$d->Seen($_[1]) if @_ > 1;
		243	$d = $d->Dump();
		244	}
		245	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		246	$d
		247	} || "[unable to dump $_[0]: '$@']";
		248	}
123		249
124	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
125		251
126	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
127		253
128	=cut
129
130	sub from_json($) {
131	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
132	JSON::Syck::Load $_[0]
133	}
134
135	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
136		255
137	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
138		257
139	=cut	258	=cut
140		259
141	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
142	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	261
143	JSON::Syck::Dump $_[0]	262	sub to_json ($) { $json_coder->encode ($_[0]) }
		263	sub from_json ($) { $json_coder->decode ($_[0]) }
		264
		265	=item cf::lock_wait $string
		266
		267	Wait until the given lock is available. See cf::lock_acquire.
		268
		269	=item my $lock = cf::lock_acquire $string
		270
		271	Wait until the given lock is available and then acquires it and returns
		272	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		273	for example when the coroutine gets canceled), the lock is automatically
		274	returned.
		275
		276	Lock names should begin with a unique identifier (for example, cf::map::find
		277	uses map_find and cf::map::load uses map_load).
		278
		279	=item $locked = cf::lock_active $string
		280
		281	Return true if the lock is currently active, i.e. somebody has locked it.
		282
		283	=cut
		284
		285	our %LOCK;
		286
		287	sub lock_wait($) {
		288	my ($key) = @_;
		289
		290	# wait for lock, if any
		291	while ($LOCK{$key}) {
		292	push @{ $LOCK{$key} }, $Coro::current;
		293	Coro::schedule;
		294	}
		295	}
		296
		297	sub lock_acquire($) {
		298	my ($key) = @_;
		299
		300	# wait, to be sure we are not locked
		301	lock_wait $key;
		302
		303	$LOCK{$key} = [];
		304
		305	Coro::guard {
		306	# wake up all waiters, to be on the safe side
		307	$_->ready for @{ delete $LOCK{$key} };
		308	}
		309	}
		310
		311	sub lock_active($) {
		312	my ($key) = @_;
		313
		314	! ! $LOCK{$key}
		315	}
		316
		317	sub freeze_mainloop {
		318	return unless $TICK_WATCHER->is_active;
		319
		320	my $guard = Coro::guard {
		321	$TICK_WATCHER->start;
		322	};
		323	$TICK_WATCHER->stop;
		324	$guard
		325	}
		326
		327	=item cf::get_slot $time[, $priority[, $name]]
		328
		329	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		330	This call blocks and returns only when you have at least C<$time> seconds
		331	of cpu time till the next tick. The slot is only valid till the next cede.
		332
		333	The optional C<$name> can be used to identify the job to run. It might be
		334	used for statistical purposes and should identify the same time-class.
		335
		336	Useful for short background jobs.
		337
		338	=cut
		339
		340	our @SLOT_QUEUE;
		341	our $SLOT_QUEUE;
		342
		343	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		344	$SLOT_QUEUE = Coro::async {
		345	my $signal = new Coro::Signal;
		346
		347	while () {
		348	next_job:
		349	my $avail = cf::till_tick;
		350	if ($avail > 0.01) {
		351	for (0 .. $#SLOT_QUEUE) {
		352	if ($SLOT_QUEUE[$_][0] < $avail) {
		353	my $job = splice @SLOT_QUEUE, $_, 1, ();
		354	$job->[2]->send;
		355	Coro::cede;
		356	goto next_job;
		357	}
		358	}
		359	}
		360
		361	if (@SLOT_QUEUE) {
		362	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		363	push @cf::WAIT_FOR_TICK, $signal;
		364	$signal->wait;
		365	} else {
		366	Coro::schedule;
		367	}
		368	}
		369	};
		370
		371	sub get_slot($;$$) {
		372	my ($time, $pri, $name) = @_;
		373
		374	$time = $TICK * .6 if $time > $TICK * .6;
		375	my $sig = new Coro::Signal;
		376
		377	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		378	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		379	$SLOT_QUEUE->ready;
		380	$sig->wait;
		381	}
		382
		383	=item cf::async { BLOCK }
		384
		385	Currently the same as Coro::async_pool, meaning you cannot use
		386	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		387	thing you are allowed to do is call C<prio> on it.
		388
		389	=cut
		390
		391	BEGIN { *async = \&Coro::async_pool }
		392
		393	=item cf::sync_job { BLOCK }
		394
		395	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
		396	is always able to handle events or runnable, as Crossfire TRT is only
		397	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		398	acceptable.
		399
		400	If it must be done, put the blocking parts into C<sync_job>. This will run
		401	the given BLOCK in another coroutine while waiting for the result. The
		402	server will be frozen during this time, so the block should either finish
		403	fast or be very important.
		404
		405	=cut
		406
		407	sub sync_job(&) {
		408	my ($job) = @_;
		409
		410	if ($Coro::current == $Coro::main) {
		411	my $time = Event::time;
		412
		413	# this is the main coro, too bad, we have to block
		414	# till the operation succeeds, freezing the server :/
		415
		416	# TODO: use suspend/resume instead
		417	# (but this is cancel-safe)
		418	my $freeze_guard = freeze_mainloop;
		419
		420	my $busy = 1;
		421	my @res;
		422
		423	(async {
		424	@res = eval { $job->() };
		425	warn $@ if $@;
		426	undef $busy;
		427	})->prio (Coro::PRIO_MAX);
		428
		429	while ($busy) {
		430	Coro::cede or Event::one_event;
		431	}
		432
		433	$time = Event::time - $time;
		434
		435	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		436	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		437
		438	$tick_start += $time; # do not account sync jobs to server load
		439
		440	wantarray ? @res : $res[0]
		441	} else {
		442	# we are in another coroutine, how wonderful, everything just works
		443
		444	$job->()
		445	}
		446	}
		447
		448	=item $coro = cf::async_ext { BLOCK }
		449
		450	Like async, but this coro is automatically being canceled when the
		451	extension calling this is being unloaded.
		452
		453	=cut
		454
		455	sub async_ext(&) {
		456	my $cb = shift;
		457
		458	my $coro = &Coro::async ($cb);
		459
		460	$coro->on_destroy (sub {
		461	delete $EXT_CORO{$coro+0};
		462	});
		463	$EXT_CORO{$coro+0} = $coro;
		464
		465	$coro
		466	}
		467
		468	=item fork_call { }, $args
		469
		470	Executes the given code block with the given arguments in a seperate
		471	process, returning the results. Everything must be serialisable with
		472	Coro::Storable. May, of course, block. Note that the executed sub may
		473	never block itself or use any form of Event handling.
		474
		475	=cut
		476
		477	sub _store_scalar {
		478	open my $fh, ">", \my $buf
		479	or die "fork_call: cannot open fh-to-buf in child : $!";
		480	Storable::store_fd $_[0], $fh;
		481	close $fh;
		482
		483	$buf
		484	}
		485
		486	sub fork_call(&@) {
		487	my ($cb, @args) = @_;
		488
		489	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		490	# or die "socketpair: $!";
		491	pipe my $fh1, my $fh2
		492	or die "pipe: $!";
		493
		494	if (my $pid = fork) {
		495	close $fh2;
		496
		497	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		498	warn "pst<$res>" unless $res =~ /^pst/;
		499	$res = Coro::Storable::thaw $res;
		500
		501	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		502
		503	Carp::confess $$res unless "ARRAY" eq ref $res;
		504
		505	return wantarray ? @$res : $res->[-1];
		506	} else {
		507	reset_signals;
		508	local $SIG{__WARN__};
		509	local $SIG{__DIE__};
		510	# just in case, this hack effectively disables event
		511	# in the child. cleaner and slower would be canceling all watchers,
		512	# but this works for the time being.
		513	local $Coro::idle;
		514	$Coro::current->prio (Coro::PRIO_MAX);
		515
		516	eval {
		517	close $fh1;
		518
		519	my @res = eval { $cb->(@args) };
		520
		521	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		522	close $fh2;
		523	};
		524
		525	warn $@ if $@;
		526	_exit 0;
		527	}
		528	}
		529
		530	=item $value = cf::db_get $family => $key
		531
		532	Returns a single value from the environment database.
		533
		534	=item cf::db_put $family => $key => $value
		535
		536	Stores the given C<$value> in the family. It can currently store binary
		537	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		538
		539	=cut
		540
		541	our $DB;
		542
		543	sub db_init {
		544	unless ($DB) {
		545	$DB = BDB::db_create $DB_ENV;
		546
		547	cf::sync_job {
		548	eval {
		549	$DB->set_flags (BDB::CHKSUM);
		550
		551	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		552	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		553	cf::cleanup "db_open(db): $!" if $!;
		554	};
		555	cf::cleanup "db_open(db): $@" if $@;
		556	};
		557	}
		558	}
		559
		560	sub db_get($$) {
		561	my $key = "$_[0]/$_[1]";
		562
		563	cf::sync_job {
		564	BDB::db_get $DB, undef, $key, my $data;
		565
		566	$! ? ()
		567	: $data
		568	}
		569	}
		570
		571	sub db_put($$$) {
		572	BDB::dbreq_pri 4;
		573	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		574	}
		575
		576	=item cf::cache $id => [$paths...], $processversion => $process
		577
		578	Generic caching function that returns the value of the resource $id,
		579	caching and regenerating as required.
		580
		581	This function can block.
		582
		583	=cut
		584
		585	sub cache {
		586	my ($id, $src, $processversion, $process) = @_;
		587
		588	my $meta =
		589	join "\x00",
		590	$processversion,
		591	map {
		592	aio_stat $_
		593	and Carp::croak "$_: $!";
		594
		595	($_, (stat _)[7,9])
		596	} @$src;
		597
		598	my $dbmeta = db_get cache => "$id/meta";
		599	if ($dbmeta ne $meta) {
		600	# changed, we may need to process
		601
		602	my @data;
		603	my $md5;
		604
		605	for (0 .. $#$src) {
		606	0 <= aio_load $src->[$_], $data[$_]
		607	or Carp::croak "$src->[$_]: $!";
		608	}
		609
		610	# if processing is expensive, check
		611	# checksum first
		612	if (1) {
		613	$md5 =
		614	join "\x00",
		615	$processversion,
		616	map {
		617	Coro::cede;
		618	($src->[$_], Digest::MD5::md5_hex $data[$_])
		619	} 0.. $#$src;
		620
		621
		622	my $dbmd5 = db_get cache => "$id/md5";
		623	if ($dbmd5 eq $md5) {
		624	db_put cache => "$id/meta", $meta;
		625
		626	return db_get cache => "$id/data";
		627	}
		628	}
		629
		630	my $t1 = Time::HiRes::time;
		631	my $data = $process->(\@data);
		632	my $t2 = Time::HiRes::time;
		633
		634	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		635
		636	db_put cache => "$id/data", $data;
		637	db_put cache => "$id/md5" , $md5;
		638	db_put cache => "$id/meta", $meta;
		639
		640	return $data;
		641	}
		642
		643	db_get cache => "$id/data"
		644	}
		645
		646	=item cf::datalog type => key => value, ...
		647
		648	Log a datalog packet of the given type with the given key-value pairs.
		649
		650	=cut
		651
		652	sub datalog($@) {
		653	my ($type, %kv) = @_;
		654	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
144	}	655	}
145		656
146	=back	657	=back
147		658
148	=cut	659	=cut
…		…
155	attach callbacks/event handlers (a collection of which is called an "attachment")	666	attach callbacks/event handlers (a collection of which is called an "attachment")
156	to it. All such attachable objects support the following methods.	667	to it. All such attachable objects support the following methods.
157		668
158	In the following description, CLASS can be any of C<global>, C<object>	669	In the following description, CLASS can be any of C<global>, C<object>
159	C<player>, C<client> or C<map> (i.e. the attachable objects in	670	C<player>, C<client> or C<map> (i.e. the attachable objects in
160	crossfire+).	671	Crossfire TRT).
161		672
162	=over 4	673	=over 4
163		674
164	=item $attachable->attach ($attachment, key => $value...)	675	=item $attachable->attach ($attachment, key => $value...)
165		676
…		…
269	exception.	780	exception.
270		781
271	=cut	782	=cut
272		783
273	# the following variables are defined in .xs and must not be re-created	784	# the following variables are defined in .xs and must not be re-created
274	our @CB_GLOBAL = (); # registry for all global events	785	our @CB_GLOBAL = (); # registry for all global events
		786	our @CB_ATTACHABLE = (); # registry for all attachables
275	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	787	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
276	our @CB_PLAYER = ();	788	our @CB_PLAYER = ();
277	our @CB_CLIENT = ();	789	our @CB_CLIENT = ();
278	our @CB_TYPE = (); # registry for type (cf-object class) based events	790	our @CB_TYPE = (); # registry for type (cf-object class) based events
279	our @CB_MAP = ();	791	our @CB_MAP = ();
280		792
281	my %attachment;	793	my %attachment;
		794
		795	sub cf::attachable::thawer_merge {
		796	# simply override everything except _meta
		797	local $_[0]{_meta};
		798	%{$_[0]} = %{$_[1]};
		799	}
282		800
283	sub _attach_cb($$$$) {	801	sub _attach_cb($$$$) {
284	my ($registry, $event, $prio, $cb) = @_;	802	my ($registry, $event, $prio, $cb) = @_;
285		803
286	use sort 'stable';	804	use sort 'stable';
…		…
289		807
290	@{$registry->[$event]} = sort	808	@{$registry->[$event]} = sort
291	{ $a->[0] cmp $b->[0] }	809	{ $a->[0] cmp $b->[0] }
292	@{$registry->[$event] || []}, $cb;	810	@{$registry->[$event] || []}, $cb;
293	}	811	}
		812
		813	# hack
		814	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
294		815
295	# attach handles attaching event callbacks	816	# attach handles attaching event callbacks
296	# the only thing the caller has to do is pass the correct	817	# the only thing the caller has to do is pass the correct
297	# registry (== where the callback attaches to).	818	# registry (== where the callback attaches to).
298	sub _attach {	819	sub _attach {
…		…
300		821
301	my $object_type;	822	my $object_type;
302	my $prio = 0;	823	my $prio = 0;
303	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	824	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
304		825
		826	#TODO: get rid of this hack
		827	if ($attachable_klass{$klass}) {
		828	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		829	}
		830
305	while (@arg) {	831	while (@arg) {
306	my $type = shift @arg;	832	my $type = shift @arg;
307		833
308	if ($type eq "prio") {	834	if ($type eq "prio") {
309	$prio = shift @arg;	835	$prio = shift @arg;
…		…
313	$registry = $CB_TYPE[$object_type] ||= [];	839	$registry = $CB_TYPE[$object_type] ||= [];
314		840
315	} elsif ($type eq "subtype") {	841	} elsif ($type eq "subtype") {
316	defined $object_type or Carp::croak "subtype specified without type";	842	defined $object_type or Carp::croak "subtype specified without type";
317	my $object_subtype = shift @arg;	843	my $object_subtype = shift @arg;
318	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	844	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
319		845
320	} elsif ($type eq "package") {	846	} elsif ($type eq "package") {
321	my $pkg = shift @arg;	847	my $pkg = shift @arg;
322		848
323	while (my ($name, $id) = each %cb_id) {	849	while (my ($name, $id) = each %cb_id) {
…		…
352	_attach $registry, $klass, @attach;	878	_attach $registry, $klass, @attach;
353	}	879	}
354		880
355	$obj->{$name} = \%arg;	881	$obj->{$name} = \%arg;
356	} else {	882	} else {
357	warn "object uses attachment '$name' that is not available, postponing.\n";	883	warn "object uses attachment '$name' which is not available, postponing.\n";
358	}	884	}
359		885
360	$obj->{_attachment}{$name} = undef;	886	$obj->{_attachment}{$name} = undef;
361	}	887	}
362		888
…		…
364	if (ref $_[0]) {	890	if (ref $_[0]) {
365	_object_attach @_;	891	_object_attach @_;
366	} else {	892	} else {
367	_attach shift->_attach_registry, @_;	893	_attach shift->_attach_registry, @_;
368	}	894	}
		895	_recalc_want;
369	};	896	};
370		897
371	# all those should be optimised	898	# all those should be optimised
372	sub cf::attachable::detach {	899	sub cf::attachable::detach {
373	my ($obj, $name) = @_;	900	my ($obj, $name) = @_;
…		…
376	delete $obj->{_attachment}{$name};	903	delete $obj->{_attachment}{$name};
377	reattach ($obj);	904	reattach ($obj);
378	} else {	905	} else {
379	Carp::croak "cannot, currently, detach class attachments";	906	Carp::croak "cannot, currently, detach class attachments";
380	}	907	}
		908	_recalc_want;
381	};	909	};
382		910
383	sub cf::attachable::attached {	911	sub cf::attachable::attached {
384	my ($obj, $name) = @_;	912	my ($obj, $name) = @_;
385		913
386	exists $obj->{_attachment}{$name}	914	exists $obj->{_attachment}{$name}
387	}	915	}
388		916
389	for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) {	917	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
390	eval "#line " . __LINE__ . " 'cf.pm'	918	eval "#line " . __LINE__ . " 'cf.pm'
391	sub cf::\L$klass\E::_attach_registry {	919	sub cf::\L$klass\E::_attach_registry {
392	(\\\@CB_$klass, KLASS_$klass)	920	(\\\@CB_$klass, KLASS_$klass)
393	}	921	}
394		922
…		…
400	";	928	";
401	die if $@;	929	die if $@;
402	}	930	}
403		931
404	our $override;	932	our $override;
405	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	933	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
406		934
407	sub override {	935	sub override {
408	$override = 1;	936	$override = 1;
409	@invoke_results = ();	937	@INVOKE_RESULTS = (@_);
410	}	938	}
411		939
412	sub do_invoke {	940	sub do_invoke {
413	my $event = shift;	941	my $event = shift;
414	my $callbacks = shift;	942	my $callbacks = shift;
415		943
416	@invoke_results = ();	944	@INVOKE_RESULTS = ();
417		945
418	local $override;	946	local $override;
419		947
420	for (@$callbacks) {	948	for (@$callbacks) {
421	eval { &{$_->[1]} };	949	eval { &{$_->[1]} };
…		…
438		966
439	Generate an object-specific event with the given arguments.	967	Generate an object-specific event with the given arguments.
440		968
441	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	969	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
442	removed in future versions), and there is no public API to access override	970	removed in future versions), and there is no public API to access override
443	results (if you must, access C<@cf::invoke_results> directly).	971	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
444		972
445	=back	973	=back
446		974
447	=cut	975	=cut
448		976
449	#############################################################################	977	#############################################################################
450	# object support	978	# object support
		979	#
451		980
452	sub instantiate {	981	sub _can_merge {
453	my ($obj, $data) = @_;	982	my ($ob1, $ob2) = @_;
454		983
455	$data = from_json $data;	984	local $Storable::canonical = 1;
		985	my $fob1 = Storable::freeze $ob1;
		986	my $fob2 = Storable::freeze $ob2;
456		987
457	for (@$data) {	988	$fob1 eq $fob2
458	my ($name, $args) = @$_;
459
460	$obj->attach ($name, %{$args || {} });
461	}
462	}	989	}
463		990
464	# basically do the same as instantiate, without calling instantiate
465	sub reattach {	991	sub reattach {
		992	# basically do the same as instantiate, without calling instantiate
466	my ($obj) = @_;	993	my ($obj) = @_;
		994
		995	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		996
467	my $registry = $obj->registry;	997	my $registry = $obj->registry;
468		998
469	@$registry = ();	999	@$registry = ();
470		1000
471	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	1001	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
…		…
480	warn "object uses attachment '$name' that is not available, postponing.\n";	1010	warn "object uses attachment '$name' that is not available, postponing.\n";
481	}	1011	}
482	}	1012	}
483	}	1013	}
484		1014
485	sub object_freezer_save {	1015	cf::attachable->attach (
486	my ($filename, $rdata, $objs) = @_;
487
488	if (length $$rdata) {
489	warn sprintf "saving %s (%d,%d)\n",
490	$filename, length $$rdata, scalar @$objs;
491
492	if (open my $fh, ">:raw", "$filename~") {
493	chmod SAVE_MODE, $fh;
494	syswrite $fh, $$rdata;
495	close $fh;
496
497	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
498	chmod SAVE_MODE, $fh;
499	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
500	close $fh;
501	rename "$filename.pst~", "$filename.pst";
502	} else {
503	unlink "$filename.pst";
504	}
505
506	rename "$filename~", $filename;
507	} else {
508	warn "FATAL: $filename~: $!\n";
509	}
510	} else {
511	unlink $filename;
512	unlink "$filename.pst";
513	}
514	}
515
516	sub object_freezer_as_string {
517	my ($rdata, $objs) = @_;
518
519	use Data::Dumper;
520
521	$$rdata . Dumper $objs
522	}
523
524	sub object_thawer_load {
525	my ($filename) = @_;
526
527	local $/;
528
529	my $av;
530
531	#TODO: use sysread etc.
532	if (open my $data, "<:raw:perlio", $filename) {
533	$data = <$data>;
534	if (open my $pst, "<:raw:perlio", "$filename.pst") {
535	$av = eval { (Storable::thaw <$pst>)->{objs} };
536	}
537	return ($data, $av);
538	}
539
540	()
541	}
542
543	cf::object->attach (
544	prio => -1000000,	1016	prio => -1000000,
		1017	on_instantiate => sub {
		1018	my ($obj, $data) = @_;
		1019
		1020	$data = from_json $data;
		1021
		1022	for (@$data) {
		1023	my ($name, $args) = @$_;
		1024
		1025	$obj->attach ($name, %{$args || {} });
		1026	}
		1027	},
		1028	on_reattach => \&reattach,
545	on_clone => sub {	1029	on_clone => sub {
546	my ($src, $dst) = @_;	1030	my ($src, $dst) = @_;
547		1031
548	@{$dst->registry} = @{$src->registry};	1032	@{$dst->registry} = @{$src->registry};
549		1033
…		…
552	%{$dst->{_attachment}} = %{$src->{_attachment}}	1036	%{$dst->{_attachment}} = %{$src->{_attachment}}
553	if exists $src->{_attachment};	1037	if exists $src->{_attachment};
554	},	1038	},
555	);	1039	);
556		1040
		1041	sub object_freezer_save {
		1042	my ($filename, $rdata, $objs) = @_;
		1043
		1044	sync_job {
		1045	if (length $$rdata) {
		1046	warn sprintf "saving %s (%d,%d)\n",
		1047	$filename, length $$rdata, scalar @$objs;
		1048
		1049	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		1050	chmod SAVE_MODE, $fh;
		1051	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1052	aio_fsync $fh if $cf::USE_FSYNC;
		1053	close $fh;
		1054
		1055	if (@$objs) {
		1056	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		1057	chmod SAVE_MODE, $fh;
		1058	my $data = Storable::nfreeze { version => 1, objs => $objs };
		1059	aio_write $fh, 0, (length $data), $data, 0;
		1060	aio_fsync $fh if $cf::USE_FSYNC;
		1061	close $fh;
		1062	aio_rename "$filename.pst~", "$filename.pst";
		1063	}
		1064	} else {
		1065	aio_unlink "$filename.pst";
		1066	}
		1067
		1068	aio_rename "$filename~", $filename;
		1069	} else {
		1070	warn "FATAL: $filename~: $!\n";
		1071	}
		1072	} else {
		1073	aio_unlink $filename;
		1074	aio_unlink "$filename.pst";
		1075	}
		1076	}
		1077	}
		1078
		1079	sub object_freezer_as_string {
		1080	my ($rdata, $objs) = @_;
		1081
		1082	use Data::Dumper;
		1083
		1084	$$rdata . Dumper $objs
		1085	}
		1086
		1087	sub object_thawer_load {
		1088	my ($filename) = @_;
		1089
		1090	my ($data, $av);
		1091
		1092	(aio_load $filename, $data) >= 0
		1093	or return;
		1094
		1095	unless (aio_stat "$filename.pst") {
		1096	(aio_load "$filename.pst", $av) >= 0
		1097	or return;
		1098	$av = eval { (Storable::thaw $av)->{objs} };
		1099	}
		1100
		1101	warn sprintf "loading %s (%d)\n",
		1102	$filename, length $data, scalar @{$av || []};
		1103	return ($data, $av);
		1104	}
		1105
		1106	=head2 COMMAND CALLBACKS
		1107
		1108	=over 4
		1109
		1110	=cut
		1111
557	#############################################################################	1112	#############################################################################
558	# command handling &c	1113	# command handling &c
559		1114
560	=item cf::register_command $name => \&callback($ob,$args);	1115	=item cf::register_command $name => \&callback($ob,$args);
561		1116
…		…
573	push @{ $COMMAND{$name} }, [$caller, $cb];	1128	push @{ $COMMAND{$name} }, [$caller, $cb];
574	}	1129	}
575		1130
576	=item cf::register_extcmd $name => \&callback($pl,$packet);	1131	=item cf::register_extcmd $name => \&callback($pl,$packet);
577		1132
578	Register a callbackf ro execution when the client sends an extcmd packet.	1133	Register a callback for execution when the client sends an (synchronous)
		1134	extcmd packet. Ext commands will be processed in the order they are
		1135	received by the server, like other user commands. The first argument is
		1136	the logged-in player. Ext commands can only be processed after a player
		1137	has logged in successfully.
579		1138
580	If the callback returns something, it is sent back as if reply was being	1139	If the callback returns something, it is sent back as if reply was being
581	called.	1140	called.
582		1141
		1142	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1143
		1144	Register a callback for execution when the client sends an (asynchronous)
		1145	exticmd packet. Exti commands are processed by the server as soon as they
		1146	are received, i.e. out of order w.r.t. other commands. The first argument
		1147	is a client socket. Exti commands can be received anytime, even before
		1148	log-in.
		1149
		1150	If the callback returns something, it is sent back as if reply was being
		1151	called.
		1152
583	=cut	1153	=cut
584		1154
585	sub register_extcmd {	1155	sub register_extcmd {
586	my ($name, $cb) = @_;	1156	my ($name, $cb) = @_;
587		1157
588	my $caller = caller;
589	#warn "registering extcmd '$name' to '$caller'";
590
591	$EXTCMD{$name} = [$cb, $caller];	1158	$EXTCMD{$name} = $cb;
		1159	}
		1160
		1161	sub register_exticmd {
		1162	my ($name, $cb) = @_;
		1163
		1164	$EXTICMD{$name} = $cb;
592	}	1165	}
593		1166
594	cf::player->attach (	1167	cf::player->attach (
595	on_command => sub {	1168	on_command => sub {
596	my ($pl, $name, $params) = @_;	1169	my ($pl, $name, $params) = @_;
…		…
605	cf::override;	1178	cf::override;
606	},	1179	},
607	on_extcmd => sub {	1180	on_extcmd => sub {
608	my ($pl, $buf) = @_;	1181	my ($pl, $buf) = @_;
609		1182
610	my $msg = eval { from_json $buf };	1183	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
611		1184
612	if (ref $msg) {	1185	if (ref $msg) {
		1186	my ($type, $reply, @payload) =
		1187	"ARRAY" eq ref $msg
		1188	? @$msg
		1189	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1190
613	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
614	if (my %reply = $cb->[0]->($pl, $msg)) {	1192	my @reply = $cb->($pl, @payload);
		1193
615	$pl->ext_reply ($msg->{msgid}, %reply);	1194	$pl->ext_reply ($reply, @reply)
616	}	1195	if $reply;
617	}	1196	}
618	} else {	1197	} else {
619	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
620	}	1199	}
621		1200
622	cf::override;	1201	cf::override;
623	},	1202	},
624	);	1203	);
625		1204
		1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
		1209	for my $path (<$LIBDIR/*.ext>) {
		1210	next unless -r $path;
		1211
		1212	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1213	my $base = $1;
		1214	my $pkg = $1;
		1215	$pkg =~ s/[^[:word:]]/_/g;
		1216	$pkg = "ext::$pkg";
		1217
		1218	open my $fh, "<:utf8", $path
		1219	or die "$path: $!";
		1220
		1221	my $source = do { local $/; <$fh> };
		1222
		1223	my %ext = (
		1224	path => $path,
		1225	base => $base,
		1226	pkg => $pkg,
		1227	);
		1228
		1229	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1230	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1231
		1232	$ext{source} =
		1233	"package $pkg; use strict; use utf8;\n"
		1234	. "#line 1 \"$path\"\n{\n"
		1235	. $source
		1236	. "\n};\n1";
		1237
		1238	$todo{$base} = \%ext;
		1239	}
		1240
		1241	my %done;
		1242	while (%todo) {
		1243	my $progress;
		1244
		1245	while (my ($k, $v) = each %todo) {
		1246	for (split /,\s*/, $v->{meta}{depends}) {
		1247	goto skip
		1248	unless exists $done{$_};
		1249	}
		1250
		1251	warn "... loading '$k' into '$v->{pkg}'\n";
		1252
		1253	unless (eval $v->{source}) {
		1254	my $msg = $@ ? "$v->{path}: $@\n"
		1255	: "$v->{base}: extension inactive.\n";
		1256
		1257	if (exists $v->{meta}{mandatory}) {
		1258	warn $msg;
		1259	warn "mandatory extension failed to load, exiting.\n";
		1260	exit 1;
		1261	}
		1262
		1263	warn $msg;
		1264	}
		1265
		1266	$done{$k} = delete $todo{$k};
		1267	push @EXTS, $v->{pkg};
		1268	$progress = 1;
		1269	}
		1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
		1275	};
		1276	}
		1277
		1278	#############################################################################
		1279
		1280	=back
		1281
		1282	=head2 CORE EXTENSIONS
		1283
		1284	Functions and methods that extend core crossfire objects.
		1285
		1286	=cut
		1287
		1288	package cf::player;
		1289
		1290	use Coro::AIO;
		1291
		1292	=head3 cf::player
		1293
		1294	=over 4
		1295
		1296	=item cf::player::find $login
		1297
		1298	Returns the given player object, loading it if necessary (might block).
		1299
		1300	=cut
		1301
		1302	sub playerdir($) {
		1303	"$PLAYERDIR/"
		1304	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1305	}
		1306
		1307	sub path($) {
		1308	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1309
		1310	(playerdir $login) . "/playerdata"
		1311	}
		1312
		1313	sub find_active($) {
		1314	$cf::PLAYER{$_[0]}
		1315	and $cf::PLAYER{$_[0]}->active
		1316	and $cf::PLAYER{$_[0]}
		1317	}
		1318
		1319	sub exists($) {
		1320	my ($login) = @_;
		1321
		1322	$cf::PLAYER{$login}
		1323	or cf::sync_job { !aio_stat path $login }
		1324	}
		1325
		1326	sub find($) {
		1327	return $cf::PLAYER{$_[0]} || do {
		1328	my $login = $_[0];
		1329
		1330	my $guard = cf::lock_acquire "user_find:$login";
		1331
		1332	$cf::PLAYER{$_[0]} || do {
		1333	# rename old playerfiles to new ones
		1334	#TODO: remove when no longer required
		1335	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1336	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1337	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1338	aio_unlink +(playerdir $login) . "/$login.pl";
		1339
		1340	my $pl = load_pl path $login
		1341	or return;
		1342	$cf::PLAYER{$login} = $pl
		1343	}
		1344	}
		1345	}
		1346
		1347	sub save($) {
		1348	my ($pl) = @_;
		1349
		1350	return if $pl->{deny_save};
		1351
		1352	my $path = path $pl;
		1353	my $guard = cf::lock_acquire "user_save:$path";
		1354
		1355	return if $pl->{deny_save};
		1356
		1357	aio_mkdir playerdir $pl, 0770;
		1358	$pl->{last_save} = $cf::RUNTIME;
		1359
		1360	$pl->save_pl ($path);
		1361	Coro::cede;
		1362	}
		1363
		1364	sub new($) {
		1365	my ($login) = @_;
		1366
		1367	my $self = create;
		1368
		1369	$self->ob->name ($login);
		1370	$self->{deny_save} = 1;
		1371
		1372	$cf::PLAYER{$login} = $self;
		1373
		1374	$self
		1375	}
		1376
		1377	=item $pl->quit_character
		1378
		1379	Nukes the player without looking back. If logged in, the connection will
		1380	be destroyed. May block for a long time.
		1381
		1382	=cut
		1383
		1384	sub quit_character {
		1385	my ($pl) = @_;
		1386
		1387	my $name = $pl->ob->name;
		1388
		1389	$pl->{deny_save} = 1;
		1390	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1391
		1392	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1393	$pl->deactivate;
		1394	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1395	$pl->ns->destroy if $pl->ns;
		1396
		1397	my $path = playerdir $pl;
		1398	my $temp = "$path~$cf::RUNTIME~deleting~";
		1399	aio_rename $path, $temp;
		1400	delete $cf::PLAYER{$pl->ob->name};
		1401	$pl->destroy;
		1402
		1403	my $prefix = qr<^~\Q$name\E/>;
		1404
		1405	# nuke player maps
		1406	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1407
		1408	IO::AIO::aio_rmtree $temp;
		1409	}
		1410
		1411	=item $pl->kick
		1412
		1413	Kicks a player out of the game. This destroys the connection.
		1414
		1415	=cut
		1416
		1417	sub kick {
		1418	my ($pl, $kicker) = @_;
		1419
		1420	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1421	$pl->killer ("kicked");
		1422	$pl->ns->destroy;
		1423	}
		1424
		1425	=item cf::player::list_logins
		1426
		1427	Returns am arrayref of all valid playernames in the system, can take a
		1428	while and may block, so not sync_job-capable, ever.
		1429
		1430	=cut
		1431
		1432	sub list_logins {
		1433	my $dirs = aio_readdir $PLAYERDIR
		1434	or return [];
		1435
		1436	my @logins;
		1437
		1438	for my $login (@$dirs) {
		1439	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1440	aio_read $fh, 0, 512, my $buf, 0 or next;
		1441	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1442
		1443	utf8::decode $login;
		1444	push @logins, $login;
		1445	}
		1446
		1447	\@logins
		1448	}
		1449
		1450	=item $player->maps
		1451
		1452	Returns an arrayref of map paths that are private for this
		1453	player. May block.
		1454
		1455	=cut
		1456
		1457	sub maps($) {
		1458	my ($pl) = @_;
		1459
		1460	$pl = ref $pl ? $pl->ob->name : $pl;
		1461
		1462	my $files = aio_readdir playerdir $pl
		1463	or return;
		1464
		1465	my @paths;
		1466
		1467	for (@$files) {
		1468	utf8::decode $_;
		1469	next if /\.(?:pl|pst)$/;
		1470	next unless /^$PATH_SEP/o;
		1471
		1472	push @paths, cf::map::normalise "~$pl/$_";
		1473	}
		1474
		1475	\@paths
		1476	}
		1477
		1478	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1479
		1480	Expand crossfire pod fragments into protocol xml.
		1481
		1482	=cut
		1483
		1484	sub expand_cfpod {
		1485	((my $self), (local $_)) = @_;
		1486
		1487	# escape & and <
		1488	s/&/&amp;/g;
		1489	s/(?<![BIUGH])</&lt;/g;
		1490
		1491	# this is buggy, it needs to properly take care of nested <'s
		1492
		1493	1 while
		1494	# replace B<>, I<>, U<> etc.
		1495	s/B<([^\>]*)>/<b>$1<\/b>/
		1496	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1497	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1498	# replace G<male|female> tags
		1499	|| s{G<([^>|]*)\|([^>]*)>}{
		1500	$self->gender ? $2 : $1
		1501	}ge
		1502	# replace H<hint text>
		1503	|| s{H<([^\>]*)>}
		1504	{
		1505	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1506	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1507	"")
		1508	[$self->{hintmode}]
		1509	}ge;
		1510
		1511	# create single paragraphs (very hackish)
		1512	s/(?<=\S)\n(?=\w)/ /g;
		1513
		1514	# compress some whitespace
		1515	s/\s+\n/\n/g; # ws line-ends
		1516	s/\n\n+/\n/g; # double lines
		1517	s/^\n+//; # beginning lines
		1518	s/\n+$//; # ending lines
		1519
		1520	$_
		1521	}
		1522
		1523	sub hintmode {
		1524	$_[0]{hintmode} = $_[1] if @_ > 1;
		1525	$_[0]{hintmode}
		1526	}
		1527
		1528	=item $player->ext_reply ($msgid, @msg)
		1529
		1530	Sends an ext reply to the player.
		1531
		1532	=cut
		1533
		1534	sub ext_reply($$@) {
		1535	my ($self, $id, @msg) = @_;
		1536
		1537	if ($self->ns->extcmd == 2) {
		1538	$self->send ("ext " . $self->ns->{json_coder}->encode (["reply-$id", @msg]));
		1539	} elsif ($self->ns->extcmd == 1) {
		1540	#TODO: version 1, remove
		1541	unshift @msg, msgtype => "reply", msgid => $id;
		1542	$self->send ("ext " . $self->ns->{json_coder}->encode ({@msg}));
		1543	}
		1544	}
		1545
		1546	=item $player->ext_msg ($type, @msg)
		1547
		1548	Sends an ext event to the client.
		1549
		1550	=cut
		1551
		1552	sub ext_msg($$@) {
		1553	my ($self, $type, @msg) = @_;
		1554
		1555	$self->ns->ext_msg ($type, @msg);
		1556	}
		1557
		1558	=head3 cf::region
		1559
		1560	=over 4
		1561
		1562	=cut
		1563
		1564	package cf::region;
		1565
		1566	=item cf::region::find_by_path $path
		1567
		1568	Tries to decuce the likely region for a map knowing only its path.
		1569
		1570	=cut
		1571
		1572	sub find_by_path($) {
		1573	my ($path) = @_;
		1574
		1575	my ($match, $specificity);
		1576
		1577	for my $region (list) {
		1578	if ($region->{match} && $path =~ $region->{match}) {
		1579	($match, $specificity) = ($region, $region->specificity)
		1580	if $region->specificity > $specificity;
		1581	}
		1582	}
		1583
		1584	$match
		1585	}
		1586
		1587	=back
		1588
		1589	=head3 cf::map
		1590
		1591	=over 4
		1592
		1593	=cut
		1594
		1595	package cf::map;
		1596
		1597	use Fcntl;
		1598	use Coro::AIO;
		1599
		1600	use overload
		1601	'""' => \&as_string,
		1602	fallback => 1;
		1603
		1604	our $MAX_RESET = 3600;
		1605	our $DEFAULT_RESET = 3000;
		1606
		1607	sub generate_random_map {
		1608	my ($self, $rmp) = @_;
		1609	# mit "rum" bekleckern, nicht
		1610	$self->_create_random_map (
		1611	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1612	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1613	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1614	$rmp->{exit_on_final_map},
		1615	$rmp->{xsize}, $rmp->{ysize},
		1616	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1617	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1618	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1619	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1620	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1621	(cf::region::find $rmp->{region}), $rmp->{custom}
		1622	)
		1623	}
		1624
		1625	=item cf::map->register ($regex, $prio)
		1626
		1627	Register a handler for the map path matching the given regex at the
		1628	givne priority (higher is better, built-in handlers have priority 0, the
		1629	default).
		1630
		1631	=cut
		1632
626	sub register {	1633	sub register {
		1634	my (undef, $regex, $prio) = @_;
		1635	my $pkg = caller;
		1636
		1637	no strict;
		1638	push @{"$pkg\::ISA"}, __PACKAGE__;
		1639
		1640	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1641	}
		1642
		1643	# also paths starting with '/'
		1644	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1645
		1646	sub thawer_merge {
627	my ($base, $pkg) = @_;	1647	my ($self, $merge) = @_;
628		1648
629	#TODO	1649	# we have to keep some variables in memory intact
630	}	1650	local $self->{path};
		1651	local $self->{load_path};
631		1652
632	sub load_extension {	1653	$self->SUPER::thawer_merge ($merge);
		1654	}
		1655
		1656	sub normalise {
633	my ($path) = @_;	1657	my ($path, $base) = @_;
634		1658
635	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1659	$path = "$path"; # make sure its a string
636	my $base = $1;
637	my $pkg = $1;
638	$pkg =~ s/[^[:word:]]/_/g;
639	$pkg = "ext::$pkg";
640		1660
641	warn "loading '$path' into '$pkg'\n";	1661	$path =~ s/\.map$//;
642		1662
643	open my $fh, "<:utf8", $path	1663	# map plan:
644	or die "$path: $!";	1664	#
		1665	# /! non-realised random map exit (special hack!)
		1666	# {... are special paths that are not being touched
		1667	# ?xxx/... are special absolute paths
		1668	# ?random/... random maps
		1669	# /... normal maps
		1670	# ~user/... per-player map of a specific user
645		1671
646	my $source =	1672	$path =~ s/$PATH_SEP/\//go;
647	"package $pkg; use strict; use utf8;\n"
648	. "#line 1 \"$path\"\n{\n"
649	. (do { local $/; <$fh> })
650	. "\n};\n1";
651		1673
652	eval $source	1674	# treat it as relative path if it starts with
653	or die $@ ? "$path: $@\n"	1675	# something that looks reasonable
654	: "extension disabled.\n";	1676	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1677	$base or Carp::carp "normalise called with relative path and no base: '$path'";
655		1678
656	push @exts, $pkg;	1679	$base =~ s{[^/]+/?$}{};
657	$ext_pkg{$base} = $pkg;	1680	$path = "$base/$path";
658
659	# no strict 'refs';
660	# @{"$pkg\::ISA"} = ext::;
661
662	register $base, $pkg;
663	}
664
665	sub unload_extension {
666	my ($pkg) = @_;
667
668	warn "removing extension $pkg\n";
669
670	# remove hooks
671	#TODO
672	# for my $idx (0 .. $#PLUGIN_EVENT) {
673	# delete $hook[$idx]{$pkg};
674	# }	1681	}
675		1682
676	# remove commands	1683	for ($path) {
677	for my $name (keys %COMMAND) {	1684	redo if s{//}{/};
678	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1685	redo if s{/\.?/}{/};
		1686	redo if s{/[^/]+/\.\./}{/};
		1687	}
679		1688
680	if (@cb) {	1689	$path
681	$COMMAND{$name} = \@cb;	1690	}
		1691
		1692	sub new_from_path {
		1693	my (undef, $path, $base) = @_;
		1694
		1695	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1696
		1697	$path = normalise $path, $base;
		1698
		1699	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1700	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1701	my $self = bless cf::map::new, $pkg;
		1702	$self->{path} = $path; $self->path ($path);
		1703	$self->init; # pass $1 etc.
		1704	return $self;
		1705	}
		1706	}
		1707
		1708	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1709	()
		1710	}
		1711
		1712	sub init {
		1713	my ($self) = @_;
		1714
		1715	$self
		1716	}
		1717
		1718	sub as_string {
		1719	my ($self) = @_;
		1720
		1721	"$self->{path}"
		1722	}
		1723
		1724	# the displayed name, this is a one way mapping
		1725	sub visible_name {
		1726	&as_string
		1727	}
		1728
		1729	# the original (read-only) location
		1730	sub load_path {
		1731	my ($self) = @_;
		1732
		1733	"$MAPDIR/$self->{path}.map"
		1734	}
		1735
		1736	# the temporary/swap location
		1737	sub save_path {
		1738	my ($self) = @_;
		1739
		1740	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1741	"$TMPDIR/$path.map"
		1742	}
		1743
		1744	# the unique path, undef == no special unique path
		1745	sub uniq_path {
		1746	my ($self) = @_;
		1747
		1748	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1749	"$UNIQUEDIR/$path"
		1750	}
		1751
		1752	# and all this just because we cannot iterate over
		1753	# all maps in C++...
		1754	sub change_all_map_light {
		1755	my ($change) = @_;
		1756
		1757	$_->change_map_light ($change)
		1758	for grep $_->outdoor, values %cf::MAP;
		1759	}
		1760
		1761	sub decay_objects {
		1762	my ($self) = @_;
		1763
		1764	return if $self->{deny_reset};
		1765
		1766	$self->do_decay_objects;
		1767	}
		1768
		1769	sub unlink_save {
		1770	my ($self) = @_;
		1771
		1772	utf8::encode (my $save = $self->save_path);
		1773	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1774	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1775	}
		1776
		1777	sub load_header_from($) {
		1778	my ($self, $path) = @_;
		1779
		1780	utf8::encode $path;
		1781	#aio_open $path, O_RDONLY, 0
		1782	# or return;
		1783
		1784	$self->_load_header ($path)
		1785	or return;
		1786
		1787	$self->{load_path} = $path;
		1788
		1789	1
		1790	}
		1791
		1792	sub load_header_orig {
		1793	my ($self) = @_;
		1794
		1795	$self->load_header_from ($self->load_path)
		1796	}
		1797
		1798	sub load_header_temp {
		1799	my ($self) = @_;
		1800
		1801	$self->load_header_from ($self->save_path)
		1802	}
		1803
		1804	sub prepare_temp {
		1805	my ($self) = @_;
		1806
		1807	$self->last_access ((delete $self->{last_access})
		1808	|| $cf::RUNTIME); #d#
		1809	# safety
		1810	$self->{instantiate_time} = $cf::RUNTIME
		1811	if $self->{instantiate_time} > $cf::RUNTIME;
		1812	}
		1813
		1814	sub prepare_orig {
		1815	my ($self) = @_;
		1816
		1817	$self->{load_original} = 1;
		1818	$self->{instantiate_time} = $cf::RUNTIME;
		1819	$self->last_access ($cf::RUNTIME);
		1820	$self->instantiate;
		1821	}
		1822
		1823	sub load_header {
		1824	my ($self) = @_;
		1825
		1826	if ($self->load_header_temp) {
		1827	$self->prepare_temp;
682	} else {	1828	} else {
683	delete $COMMAND{$name};	1829	$self->load_header_orig
684	}	1830	or return;
		1831	$self->prepare_orig;
		1832	}
		1833
		1834	$self->{deny_reset} = 1
		1835	if $self->no_reset;
		1836
		1837	$self->default_region (cf::region::find_by_path $self->{path})
		1838	unless $self->default_region;
		1839
685	}	1840	1
		1841	}
686		1842
687	# remove extcmds	1843	sub find;
688	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1844	sub find {
689	delete $EXTCMD{$name};	1845	my ($path, $origin) = @_;
		1846
		1847	$path = normalise $path, $origin && $origin->path;
		1848
		1849	cf::lock_wait "map_find:$path";
		1850
		1851	$cf::MAP{$path} || do {
		1852	my $guard = cf::lock_acquire "map_find:$path";
		1853	my $map = new_from_path cf::map $path
		1854	or return;
		1855
		1856	$map->{last_save} = $cf::RUNTIME;
		1857
		1858	$map->load_header
		1859	or return;
		1860
		1861	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1862	# doing this can freeze the server in a sync job, obviously
		1863	#$cf::WAIT_FOR_TICK->wait;
		1864	$map->reset;
		1865	undef $guard;
		1866	return find $path;
		1867	}
		1868
		1869	$cf::MAP{$path} = $map
		1870	}
		1871	}
		1872
		1873	sub pre_load { }
		1874	sub post_load { }
		1875
		1876	sub load {
		1877	my ($self) = @_;
		1878
		1879	local $self->{deny_reset} = 1; # loading can take a long time
		1880
		1881	my $path = $self->{path};
		1882
690	}	1883	{
		1884	my $guard = cf::lock_acquire "map_load:$path";
691		1885
692	if (my $cb = $pkg->can ("unload")) {	1886	return if $self->in_memory != cf::MAP_SWAPPED;
693	eval {	1887
694	$cb->($pkg);	1888	$self->in_memory (cf::MAP_LOADING);
		1889
		1890	$self->alloc;
		1891
		1892	$self->pre_load;
		1893	Coro::cede;
		1894
		1895	$self->_load_objects ($self->{load_path}, 1)
		1896	or return;
		1897
		1898	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1899	if delete $self->{load_original};
		1900
		1901	if (my $uniq = $self->uniq_path) {
		1902	utf8::encode $uniq;
		1903	if (aio_open $uniq, O_RDONLY, 0) {
		1904	$self->clear_unique_items;
		1905	$self->_load_objects ($uniq, 0);
695	1	1906	}
696	} or warn "$pkg unloaded, but with errors: $@";	1907	}
697	}
698		1908
699	Symbol::delete_package $pkg;	1909	Coro::cede;
700	}	1910	# now do the right thing for maps
		1911	$self->link_multipart_objects;
		1912	$self->difficulty ($self->estimate_difficulty)
		1913	unless $self->difficulty;
		1914	Coro::cede;
701		1915
702	sub load_extensions {	1916	unless ($self->{deny_activate}) {
703	for my $ext (<$LIBDIR/*.ext>) {	1917	$self->decay_objects;
704	next unless -r $ext;	1918	$self->fix_auto_apply;
705	eval {	1919	$self->update_buttons;
706	load_extension $ext;	1920	Coro::cede;
707	1	1921	$self->set_darkness_map;
708	} or warn "$ext not loaded: $@";	1922	Coro::cede;
709	}	1923	$self->activate;
710	}	1924	}
711		1925
712	#############################################################################	1926	$map->{last_save} = $cf::RUNTIME;
713	# load/save/clean perl data associated with a map	1927	$map->last_access ($cf::RUNTIME);
714		1928
715	*cf::mapsupport::on_clean = sub {	1929	$self->in_memory (cf::MAP_IN_MEMORY);
		1930	}
		1931
		1932	$self->post_load;
		1933	}
		1934
		1935	sub customise_for {
		1936	my ($self, $ob) = @_;
		1937
		1938	return find "~" . $ob->name . "/" . $self->{path}
		1939	if $self->per_player;
		1940
		1941	# return find "?party/" . $ob->name . "/" . $self->{path}
		1942	# if $self->per_party;
		1943
		1944	$self
		1945	}
		1946
		1947	# find and load all maps in the 3x3 area around a map
		1948	sub load_diag {
716	my ($map) = @_;	1949	my ($map) = @_;
717		1950
718	my $path = $map->tmpname;	1951	my @diag; # diagonal neighbours
719	defined $path or return;
720		1952
721	unlink "$path.pst";	1953	for (0 .. 3) {
722	};	1954	my $neigh = $map->tile_path ($_)
		1955	or next;
		1956	$neigh = find $neigh, $map
		1957	or next;
		1958	$neigh->load;
723		1959
724	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1960	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1961	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1962	}
725		1963
726	#############################################################################	1964	for (@diag) {
727	# load/save perl data associated with player->ob objects	1965	my $neigh = find @$_
728		1966	or next;
729	sub all_objects(@) {	1967	$neigh->load;
730	@_, map all_objects ($_->inv), @_	1968	}
731	}	1969	}
732		1970
733	# TODO: compatibility cruft, remove when no longer needed	1971	sub find_sync {
734	cf::player->attach (	1972	my ($path, $origin) = @_;
735	on_load => sub {
736	my ($pl, $path) = @_;
737		1973
738	for my $o (all_objects $pl->ob) {	1974	cf::sync_job { find $path, $origin }
739	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1975	}
740	$o->set_ob_key_value ("_perl_data");
741		1976
742	%$o = %{ Storable::thaw pack "H*", $value };	1977	sub do_load_sync {
		1978	my ($map) = @_;
		1979
		1980	cf::sync_job { $map->load };
		1981	}
		1982
		1983	our %MAP_PREFETCH;
		1984	our $MAP_PREFETCHER = undef;
		1985
		1986	sub find_async {
		1987	my ($path, $origin) = @_;
		1988
		1989	$path = normalise $path, $origin && $origin->{path};
		1990
		1991	if (my $map = $cf::MAP{$path}) {
		1992	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1993	}
		1994
		1995	undef $MAP_PREFETCH{$path};
		1996	$MAP_PREFETCHER ||= cf::async {
		1997	while (%MAP_PREFETCH) {
		1998	for my $path (keys %MAP_PREFETCH) {
		1999	if (my $map = find $path) {
		2000	$map->load;
		2001	}
		2002
		2003	delete $MAP_PREFETCH{$path};
743	}	2004	}
744	}	2005	}
		2006	undef $MAP_PREFETCHER;
		2007	};
		2008	$MAP_PREFETCHER->prio (6);
		2009
		2010	()
		2011	}
		2012
		2013	sub save {
		2014	my ($self) = @_;
		2015
		2016	my $lock = cf::lock_acquire "map_data:" . $self->path;
		2017
		2018	$self->{last_save} = $cf::RUNTIME;
		2019
		2020	return unless $self->dirty;
		2021
		2022	my $save = $self->save_path; utf8::encode $save;
		2023	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2024
		2025	$self->{load_path} = $save;
		2026
		2027	return if $self->{deny_save};
		2028
		2029	local $self->{last_access} = $self->last_access;#d#
		2030
		2031	cf::async {
		2032	$_->contr->save for $self->players;
		2033	};
		2034
		2035	if ($uniq) {
		2036	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2037	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2038	} else {
		2039	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
745	},	2040	}
746	);	2041	}
747		2042
748	#############################################################################	2043	sub swap_out {
		2044	my ($self) = @_;
749		2045
750	=head2 CORE EXTENSIONS	2046	# save first because save cedes
		2047	$self->save;
751		2048
752	Functions and methods that extend core crossfire objects.	2049	my $lock = cf::lock_acquire "map_data:" . $self->path;
753		2050
754	=head3 cf::player	2051	return if $self->players;
		2052	return if $self->in_memory != cf::MAP_IN_MEMORY;
		2053	return if $self->{deny_save};
		2054
		2055	$self->clear;
		2056	$self->in_memory (cf::MAP_SWAPPED);
		2057	}
		2058
		2059	sub reset_at {
		2060	my ($self) = @_;
		2061
		2062	# TODO: safety, remove and allow resettable per-player maps
		2063	return 1e99 if $self->{deny_reset};
		2064
		2065	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2066	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2067
		2068	$time + $to
		2069	}
		2070
		2071	sub should_reset {
		2072	my ($self) = @_;
		2073
		2074	$self->reset_at <= $cf::RUNTIME
		2075	}
		2076
		2077	sub reset {
		2078	my ($self) = @_;
		2079
		2080	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2081
		2082	return if $self->players;
		2083
		2084	warn "resetting map ", $self->path;
		2085
		2086	$self->in_memory (cf::MAP_SWAPPED);
		2087
		2088	# need to save uniques path
		2089	unless ($self->{deny_save}) {
		2090	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2091
		2092	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2093	if $uniq;
		2094	}
		2095
		2096	delete $cf::MAP{$self->path};
		2097
		2098	$self->clear;
		2099
		2100	$_->clear_links_to ($self) for values %cf::MAP;
		2101
		2102	$self->unlink_save;
		2103	$self->destroy;
		2104	}
		2105
		2106	my $nuke_counter = "aaaa";
		2107
		2108	sub nuke {
		2109	my ($self) = @_;
		2110
		2111	delete $cf::MAP{$self->path};
		2112
		2113	$self->unlink_save;
		2114
		2115	bless $self, "cf::map";
		2116	delete $self->{deny_reset};
		2117	$self->{deny_save} = 1;
		2118	$self->reset_timeout (1);
		2119	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2120
		2121	$cf::MAP{$self->path} = $self;
		2122
		2123	$self->reset; # polite request, might not happen
		2124	}
		2125
		2126	=item $maps = cf::map::tmp_maps
		2127
		2128	Returns an arrayref with all map paths of currently instantiated and saved
		2129	maps. May block.
		2130
		2131	=cut
		2132
		2133	sub tmp_maps() {
		2134	[
		2135	map {
		2136	utf8::decode $_;
		2137	/\.map$/
		2138	? normalise $_
		2139	: ()
		2140	} @{ aio_readdir $TMPDIR or [] }
		2141	]
		2142	}
		2143
		2144	=item $maps = cf::map::random_maps
		2145
		2146	Returns an arrayref with all map paths of currently instantiated and saved
		2147	random maps. May block.
		2148
		2149	=cut
		2150
		2151	sub random_maps() {
		2152	[
		2153	map {
		2154	utf8::decode $_;
		2155	/\.map$/
		2156	? normalise "?random/$_"
		2157	: ()
		2158	} @{ aio_readdir $RANDOMDIR or [] }
		2159	]
		2160	}
		2161
		2162	=item cf::map::unique_maps
		2163
		2164	Returns an arrayref of paths of all shared maps that have
		2165	instantiated unique items. May block.
		2166
		2167	=cut
		2168
		2169	sub unique_maps() {
		2170	[
		2171	map {
		2172	utf8::decode $_;
		2173	/\.map$/
		2174	? normalise $_
		2175	: ()
		2176	} @{ aio_readdir $UNIQUEDIR or [] }
		2177	]
		2178	}
		2179
		2180	package cf;
		2181
		2182	=back
		2183
		2184	=head3 cf::object
		2185
		2186	=cut
		2187
		2188	package cf::object;
755		2189
756	=over 4	2190	=over 4
757		2191
758	=item cf::player::exists $login	2192	=item $ob->inv_recursive
759		2193
760	Returns true when the given account exists.	2194	Returns the inventory of the object _and_ their inventories, recursively.
761		2195
762	=cut	2196	=cut
763		2197
764	sub cf::player::exists($) {	2198	sub inv_recursive_;
765	cf::player::find $_[0]	2199	sub inv_recursive_ {
766	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2200	map { $_, inv_recursive_ $_->inv } @_
767	}	2201	}
768		2202
769	=item $player->ext_reply ($msgid, $msgtype, %msg)	2203	sub inv_recursive {
770		2204	inv_recursive_ inv $_[0]
771	Sends an ext reply to the player.
772
773	=cut
774
775	sub cf::player::ext_reply($$$%) {
776	my ($self, $id, %msg) = @_;
777
778	$msg{msgid} = $id;
779
780	$self->send ("ext " . to_json \%msg);
781	}	2205	}
		2206
		2207	package cf;
782		2208
783	=back	2209	=back
784		2210
785	=head3 cf::object::player	2211	=head3 cf::object::player
786		2212
…		…
802		2228
803	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2229	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
804		2230
805	if ($self->{record_replies}) {	2231	if ($self->{record_replies}) {
806	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2232	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2233
807	} else {	2234	} else {
		2235	my $pl = $self->contr;
		2236
		2237	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2238	my $dialog = $pl->{npc_dialog};
		2239	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2240
		2241	} else {
808	$msg = $npc->name . " says: $msg" if $npc;	2242	$msg = $npc->name . " says: $msg" if $npc;
809	$self->message ($msg, $flags);	2243	$self->message ($msg, $flags);
		2244	}
810	}	2245	}
811	}	2246	}
812		2247
813	=item $player_object->may ("access")	2248	=item $player_object->may ("access")
814		2249
…		…
824	(ref $cf::CFG{"may_$access"}	2259	(ref $cf::CFG{"may_$access"}
825	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2260	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
826	: $cf::CFG{"may_$access"})	2261	: $cf::CFG{"may_$access"})
827	}	2262	}
828		2263
		2264	=item $player_object->enter_link
		2265
		2266	Freezes the player and moves him/her to a special map (C<{link}>).
		2267
		2268	The player should be reasonably safe there for short amounts of time. You
		2269	I<MUST> call C<leave_link> as soon as possible, though.
		2270
		2271	Will never block.
		2272
		2273	=item $player_object->leave_link ($map, $x, $y)
		2274
		2275	Moves the player out of the special C<{link}> map onto the specified
		2276	map. If the map is not valid (or omitted), the player will be moved back
		2277	to the location he/she was before the call to C<enter_link>, or, if that
		2278	fails, to the emergency map position.
		2279
		2280	Might block.
		2281
		2282	=cut
		2283
		2284	sub link_map {
		2285	unless ($LINK_MAP) {
		2286	$LINK_MAP = cf::map::find "{link}"
		2287	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2288	$LINK_MAP->load;
		2289	}
		2290
		2291	$LINK_MAP
		2292	}
		2293
		2294	sub cf::object::player::enter_link {
		2295	my ($self) = @_;
		2296
		2297	$self->deactivate_recursive;
		2298
		2299	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2300
		2301	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2302	if $self->map && $self->map->{path} ne "{link}";
		2303
		2304	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2305	}
		2306
		2307	sub cf::object::player::leave_link {
		2308	my ($self, $map, $x, $y) = @_;
		2309
		2310	return unless $self->contr->active;
		2311
		2312	my $link_pos = delete $self->{_link_pos};
		2313
		2314	unless ($map) {
		2315	# restore original map position
		2316	($map, $x, $y) = @{ $link_pos || [] };
		2317	$map = cf::map::find $map;
		2318
		2319	unless ($map) {
		2320	($map, $x, $y) = @$EMERGENCY_POSITION;
		2321	$map = cf::map::find $map
		2322	or die "FATAL: cannot load emergency map\n";
		2323	}
		2324	}
		2325
		2326	($x, $y) = (-1, -1)
		2327	unless (defined $x) && (defined $y);
		2328
		2329	# use -1 or undef as default coordinates, not 0, 0
		2330	($x, $y) = ($map->enter_x, $map->enter_y)
		2331	if $x <=0 && $y <= 0;
		2332
		2333	$map->load;
		2334	$map->load_diag;
		2335
		2336	return unless $self->contr->active;
		2337	$self->activate_recursive;
		2338
		2339	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2340	$self->enter_map ($map, $x, $y);
		2341	}
		2342
		2343	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
		2344
		2345	Moves the player to the given map-path and coordinates by first freezing
		2346	her, loading and preparing them map, calling the provided $check callback
		2347	that has to return the map if sucecssful, and then unfreezes the player on
		2348	the new (success) or old (failed) map position. In either case, $done will
		2349	be called at the end of this process.
		2350
		2351	=cut
		2352
		2353	our $GOTOGEN;
		2354
		2355	sub cf::object::player::goto {
		2356	my ($self, $path, $x, $y, $check, $done) = @_;
		2357
		2358	# do generation counting so two concurrent goto's will be executed in-order
		2359	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2360
		2361	$self->enter_link;
		2362
		2363	(async {
		2364	my $map = eval {
		2365	my $map = cf::map::find $path;
		2366
		2367	if ($map) {
		2368	$map = $map->customise_for ($self);
		2369	$map = $check->($map) if $check && $map;
		2370	} else {
		2371	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2372	}
		2373
		2374	$map
		2375	};
		2376
		2377	if ($@) {
		2378	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2379	LOG llevError | logBacktrace, Carp::longmess $@;
		2380	}
		2381
		2382	if ($gen == $self->{_goto_generation}) {
		2383	delete $self->{_goto_generation};
		2384	$self->leave_link ($map, $x, $y);
		2385	}
		2386
		2387	$done->() if $done;
		2388	})->prio (1);
		2389	}
		2390
		2391	=item $player_object->enter_exit ($exit_object)
		2392
		2393	=cut
		2394
		2395	sub parse_random_map_params {
		2396	my ($spec) = @_;
		2397
		2398	my $rmp = { # defaults
		2399	xsize => (cf::rndm 15, 40),
		2400	ysize => (cf::rndm 15, 40),
		2401	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2402	#layout => string,
		2403	};
		2404
		2405	for (split /\n/, $spec) {
		2406	my ($k, $v) = split /\s+/, $_, 2;
		2407
		2408	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2409	}
		2410
		2411	$rmp
		2412	}
		2413
		2414	sub prepare_random_map {
		2415	my ($exit) = @_;
		2416
		2417	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2418
		2419	# all this does is basically replace the /! path by
		2420	# a new random map path (?random/...) with a seed
		2421	# that depends on the exit object
		2422
		2423	my $rmp = parse_random_map_params $exit->msg;
		2424
		2425	if ($exit->map) {
		2426	$rmp->{region} = $exit->region->name;
		2427	$rmp->{origin_map} = $exit->map->path;
		2428	$rmp->{origin_x} = $exit->x;
		2429	$rmp->{origin_y} = $exit->y;
		2430	}
		2431
		2432	$rmp->{random_seed} ||= $exit->random_seed;
		2433
		2434	my $data = cf::to_json $rmp;
		2435	my $md5 = Digest::MD5::md5_hex $data;
		2436	my $meta = "$RANDOMDIR/$md5.meta";
		2437
		2438	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2439	aio_write $fh, 0, (length $data), $data, 0;
		2440	undef $fh;
		2441	aio_rename "$meta~", $meta;
		2442
		2443	$exit->slaying ("?random/$md5");
		2444	$exit->msg (undef);
		2445	}
		2446	}
		2447
		2448	sub cf::object::player::enter_exit {
		2449	my ($self, $exit) = @_;
		2450
		2451	return unless $self->type == cf::PLAYER;
		2452
		2453	if ($exit->slaying eq "/!") {
		2454	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2455	# the problem is that $exit might not survive long enough
		2456	# so it needs to be done right now, right here
		2457	cf::sync_job { prepare_random_map $exit };
		2458	}
		2459
		2460	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2461	my $hp = $exit->stats->hp;
		2462	my $sp = $exit->stats->sp;
		2463
		2464	$self->enter_link;
		2465
		2466	# if exit is damned, update players death & WoR home-position
		2467	$self->contr->savebed ($slaying, $hp, $sp)
		2468	if $exit->flag (FLAG_DAMNED);
		2469
		2470	(async {
		2471	$self->deactivate_recursive; # just to be sure
		2472	unless (eval {
		2473	$self->goto ($slaying, $hp, $sp);
		2474
		2475	1;
		2476	}) {
		2477	$self->message ("Something went wrong deep within the crossfire server. "
		2478	. "I'll try to bring you back to the map you were before. "
		2479	. "Please report this to the dungeon master!",
		2480	cf::NDI_UNIQUE | cf::NDI_RED);
		2481
		2482	warn "ERROR in enter_exit: $@";
		2483	$self->leave_link;
		2484	}
		2485	})->prio (1);
		2486	}
		2487
829	=head3 cf::client	2488	=head3 cf::client
830		2489
831	=over 4	2490	=over 4
832		2491
833	=item $client->send_drawinfo ($text, $flags)	2492	=item $client->send_drawinfo ($text, $flags)
…		…
839		2498
840	sub cf::client::send_drawinfo {	2499	sub cf::client::send_drawinfo {
841	my ($self, $text, $flags) = @_;	2500	my ($self, $text, $flags) = @_;
842		2501
843	utf8::encode $text;	2502	utf8::encode $text;
844	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2503	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
845	}	2504	}
846		2505
		2506	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2507
		2508	Send a drawinfo or msg packet to the client, formatting the msg for the
		2509	client if neccessary. C<$type> should be a string identifying the type of
		2510	the message, with C<log> being the default. If C<$color> is negative, suppress
		2511	the message unless the client supports the msg packet.
		2512
		2513	=cut
		2514
		2515	sub cf::client::send_msg {
		2516	my ($self, $channel, $msg, $color, @extra) = @_;
		2517
		2518	$msg = $self->pl->expand_cfpod ($msg);
		2519
		2520	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2521
		2522	if (ref $channel) {
		2523	# send meta info to client, if not yet sent
		2524	unless (exists $self->{channel}{$channel->{id}}) {
		2525	$self->{channel}{$channel->{id}} = $channel;
		2526	$self->ext_msg (channel_info => $channel);
		2527	}
		2528
		2529	$channel = $channel->{id};
		2530	}
		2531
		2532	return unless @extra || length $msg;
		2533
		2534	if ($self->can_msg) {
		2535	# default colour, mask it out
		2536	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2537	if $color & cf::NDI_DEF;
		2538
		2539	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2540	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2541	} else {
		2542	if ($color >= 0) {
		2543	# replace some tags by gcfclient-compatible ones
		2544	for ($msg) {
		2545	1 while
		2546	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2547	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2548	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2549	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2550	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2551	}
		2552
		2553	$color &= cf::NDI_COLOR_MASK;
		2554
		2555	if (0 && $msg =~ /\[/) {
		2556	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2557	} else {
		2558	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2559	$self->send_packet ("drawinfo $color $msg")
		2560	}
		2561	}
		2562	}
		2563	}
		2564
		2565	=item $client->ext_msg ($type, @msg)
		2566
		2567	Sends an ext event to the client.
		2568
		2569	=cut
		2570
		2571	sub cf::client::ext_msg($$@) {
		2572	my ($self, $type, @msg) = @_;
		2573
		2574	my $extcmd = $self->extcmd;
		2575
		2576	if ($extcmd == 2) {
		2577	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2578	} elsif ($extcmd == 1) { # TODO: remove
		2579	push @msg, msgtype => "event_$type";
		2580	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2581	}
		2582	}
847		2583
848	=item $success = $client->query ($flags, "text", \&cb)	2584	=item $success = $client->query ($flags, "text", \&cb)
849		2585
850	Queues a query to the client, calling the given callback with	2586	Queues a query to the client, calling the given callback with
851	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2587	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
852	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2588	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
853		2589
854	Queries can fail, so check the return code. Or don't, as queries will become	2590	Queries can fail, so check the return code. Or don't, as queries will
855	reliable at some point in the future.	2591	become reliable at some point in the future.
856		2592
857	=cut	2593	=cut
858		2594
859	sub cf::client::query {	2595	sub cf::client::query {
860	my ($self, $flags, $text, $cb) = @_;	2596	my ($self, $flags, $text, $cb) = @_;
…		…
868	utf8::encode $text;	2604	utf8::encode $text;
869	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2605	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
870		2606
871	$self->send_packet ($self->{query_queue}[0][0])	2607	$self->send_packet ($self->{query_queue}[0][0])
872	if @{ $self->{query_queue} } == 1;	2608	if @{ $self->{query_queue} } == 1;
		2609
		2610	1
873	}	2611	}
874		2612
875	cf::client->attach (	2613	cf::client->attach (
		2614	on_connect => sub {
		2615	my ($ns) = @_;
		2616
		2617	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2618	},
876	on_reply => sub {	2619	on_reply => sub {
877	my ($ns, $msg) = @_;	2620	my ($ns, $msg) = @_;
878		2621
879	# this weird shuffling is so that direct followup queries	2622	# this weird shuffling is so that direct followup queries
880	# get handled first	2623	# get handled first
881	my $queue = delete $ns->{query_queue};	2624	my $queue = delete $ns->{query_queue}
		2625	or return; # be conservative, not sure how that can happen, but we saw a crash here
882		2626
883	(shift @$queue)->[1]->($msg);	2627	(shift @$queue)->[1]->($msg);
		2628	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
884		2629
885	push @{ $ns->{query_queue} }, @$queue;	2630	push @{ $ns->{query_queue} }, @$queue;
886		2631
887	if (@{ $ns->{query_queue} } == @$queue) {	2632	if (@{ $ns->{query_queue} } == @$queue) {
888	if (@$queue) {	2633	if (@$queue) {
889	$ns->send_packet ($ns->{query_queue}[0][0]);	2634	$ns->send_packet ($ns->{query_queue}[0][0]);
890	} else {	2635	} else {
891	$ns->state (ST_PLAYING);	2636	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
892	}	2637	}
893	}	2638	}
		2639	},
		2640	on_exticmd => sub {
		2641	my ($ns, $buf) = @_;
		2642
		2643	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2644
		2645	if (ref $msg) {
		2646	my ($type, $reply, @payload) =
		2647	"ARRAY" eq ref $msg
		2648	? @$msg
		2649	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2650
		2651	if (my $cb = $EXTICMD{$type}) {
		2652	my @reply = $cb->($ns, @payload);
		2653
		2654	$ns->ext_reply ($reply, @reply)
		2655	if $reply;
		2656	}
		2657	} else {
		2658	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2659	}
		2660
		2661	cf::override;
894	},	2662	},
895	);	2663	);
896		2664
897	=item $client->coro (\&cb)	2665	=item $client->async (\&cb)
898		2666
899	Create a new coroutine, running the specified callback. The coroutine will	2667	Create a new coroutine, running the specified callback. The coroutine will
900	be automatically cancelled when the client gets destroyed (e.g. on logout,	2668	be automatically cancelled when the client gets destroyed (e.g. on logout,
901	or loss of connection).	2669	or loss of connection).
902		2670
903	=cut	2671	=cut
904		2672
905	sub cf::client::coro {	2673	sub cf::client::async {
906	my ($self, $cb) = @_;	2674	my ($self, $cb) = @_;
907		2675
908	my $coro; $coro = async {	2676	my $coro = &Coro::async ($cb);
909	eval {	2677
910	$cb->();	2678	$coro->on_destroy (sub {
911	};
912	warn $@ if $@;
913	warn "cancel myself\n";#d#
914	delete $self->{_coro}{$coro+0};	2679	delete $self->{_coro}{$coro+0};
915	};	2680	});
916		2681
917	$self->{_coro}{$coro+0} = $coro;	2682	$self->{_coro}{$coro+0} = $coro;
		2683
		2684	$coro
918	}	2685	}
919		2686
920	cf::client->attach (	2687	cf::client->attach (
921	on_destroy => sub {	2688	on_destroy => sub {
922	my ($ns) = @_;	2689	my ($ns) = @_;
923		2690
924	warn "cancel $_" for values %{ $ns->{_coro} || {} };#d#
925	$_->cancel for values %{ $ns->{_coro} || {} };	2691	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
926	},	2692	},
927	);	2693	);
928		2694
929	=back	2695	=back
930		2696
…		…
948		2714
949	# here we export the classes and methods available to script code	2715	# here we export the classes and methods available to script code
950		2716
951	=pod	2717	=pod
952		2718
953	The following fucntions and emthods are available within a safe environment:	2719	The following functions and methods are available within a safe environment:
954		2720
955	cf::object contr pay_amount pay_player map	2721	cf::object
		2722	contr pay_amount pay_player map x y force_find force_add
		2723	insert remove
		2724
956	cf::object::player player	2725	cf::object::player
957	cf::player peaceful	2726	player
958	cf::map trigger	2727
		2728	cf::player
		2729	peaceful
		2730
		2731	cf::map
		2732	trigger
959		2733
960	=cut	2734	=cut
961		2735
962	for (	2736	for (
963	["cf::object" => qw(contr pay_amount pay_player map)],	2737	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2738	insert remove)],
964	["cf::object::player" => qw(player)],	2739	["cf::object::player" => qw(player)],
965	["cf::player" => qw(peaceful)],	2740	["cf::player" => qw(peaceful)],
966	["cf::map" => qw(trigger)],	2741	["cf::map" => qw(trigger)],
967	) {	2742	) {
968	no strict 'refs';	2743	no strict 'refs';
…		…
1039	=back	2814	=back
1040		2815
1041	=cut	2816	=cut
1042		2817
1043	#############################################################################	2818	#############################################################################
		2819	# the server's init and main functions
1044		2820
1045	=head2 EXTENSION DATABASE SUPPORT	2821	sub load_facedata($) {
		2822	my ($path) = @_;
1046		2823
1047	Crossfire maintains a very simple database for extension use. It can	2824	warn "loading facedata from $path\n";
1048	currently store anything that can be serialised using Storable, which
1049	excludes objects.
1050		2825
1051	The parameter C<$family> should best start with the name of the extension	2826	my $facedata;
1052	using it, it should be unique.	2827	0 < aio_load $path, $facedata
		2828	or die "$path: $!";
1053		2829
1054	=over 4	2830	$facedata = Coro::Storable::thaw $facedata;
1055		2831
1056	=item $hashref = cf::db_get $family	2832	$facedata->{version} == 2
		2833	or cf::cleanup "$path: version mismatch, cannot proceed.";
1057		2834
1058	Return a hashref for use by the extension C<$family>, which can be
1059	modified. After modifications, you have to call C<cf::db_dirty> or
1060	C<cf::db_sync>.
1061
1062	=item $value = cf::db_get $family => $key
1063
1064	Returns a single value from the database
1065
1066	=item cf::db_put $family => $hashref
1067
1068	Stores the given family hashref into the database. Updates are delayed, if
1069	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1070
1071	=item cf::db_put $family => $key => $value
1072
1073	Stores the given C<$value> in the family hash. Updates are delayed, if you
1074	want the data to be synced to disk immediately, use C<cf::db_sync>.
1075
1076	=item cf::db_dirty
1077
1078	Marks the database as dirty, to be updated at a later time.
1079
1080	=item cf::db_sync
1081
1082	Immediately write the database to disk I<if it is dirty>.
1083
1084	=cut
1085
1086	our $DB;
1087
1088	{
1089	my $path = cf::localdir . "/database.pst";
1090
1091	sub db_load() {
1092	warn "loading database $path\n";#d# remove later
1093	$DB = stat $path ? Storable::retrieve $path : { };
1094	}	2835	{
		2836	my $faces = $facedata->{faceinfo};
1095		2837
1096	my $pid;	2838	while (my ($face, $info) = each %$faces) {
		2839	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2840	cf::face::set_visibility $idx, $info->{visibility};
		2841	cf::face::set_magicmap $idx, $info->{magicmap};
		2842	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2843	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1097		2844
1098	sub db_save() {	2845	cf::cede_to_tick;
1099	warn "saving database $path\n";#d# remove later
1100	waitpid $pid, 0 if $pid;
1101	if (0 == ($pid = fork)) {
1102	$DB->{_meta}{version} = 1;
1103	Storable::nstore $DB, "$path~";
1104	rename "$path~", $path;
1105	cf::_exit 0 if defined $pid;
1106	}
1107	}
1108
1109	my $dirty;
1110
1111	sub db_sync() {
1112	db_save if $dirty;
1113	undef $dirty;
1114	}
1115
1116	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1117	db_sync;
1118	});
1119
1120	sub db_dirty() {
1121	$dirty = 1;
1122	$idle->start;
1123	}
1124
1125	sub db_get($;$) {
1126	@_ >= 2
1127	? $DB->{$_[0]}{$_[1]}
1128	: ($DB->{$_[0]} ||= { })
1129	}
1130
1131	sub db_put($$;$) {
1132	if (@_ >= 3) {
1133	$DB->{$_[0]}{$_[1]} = $_[2];
1134	} else {
1135	$DB->{$_[0]} = $_[1];
1136	}
1137	db_dirty;
1138	}
1139
1140	cf::global->attach (
1141	prio => 10000,
1142	on_cleanup => sub {
1143	db_sync;
1144	},	2846	}
1145	);
1146	}
1147		2847
1148	#############################################################################	2848	while (my ($face, $info) = each %$faces) {
1149	# the server's main()	2849	next unless $info->{smooth};
		2850	my $idx = cf::face::find $face
		2851	or next;
		2852	if (my $smooth = cf::face::find $info->{smooth}) {
		2853	cf::face::set_smooth $idx, $smooth;
		2854	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2855	} else {
		2856	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2857	}
		2858
		2859	cf::cede_to_tick;
		2860	}
		2861	}
		2862
		2863	{
		2864	my $anims = $facedata->{animinfo};
		2865
		2866	while (my ($anim, $info) = each %$anims) {
		2867	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2868	cf::cede_to_tick;
		2869	}
		2870
		2871	cf::anim::invalidate_all; # d'oh
		2872	}
		2873
		2874	{
		2875	# TODO: for gcfclient pleasure, we should give resources
		2876	# that gcfclient doesn't grok a >10000 face index.
		2877	my $res = $facedata->{resource};
		2878	my $enc = JSON::XS->new->utf8->canonical;
		2879
		2880	my $soundconf = delete $res->{"res/sound.conf"};
		2881
		2882	while (my ($name, $info) = each %$res) {
		2883	my $meta = $enc->encode ({
		2884	name => $name,
		2885	%{ $info->{meta} || {} },
		2886	});
		2887
		2888	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2889
		2890	if ($info->{type} & 1) {
		2891	# prepend meta info
		2892
		2893	my $data = pack "(w/a*)*", $meta, $info->{data};
		2894	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2895
		2896	cf::face::set_data $idx, 0, $data, $chk;
		2897	} else {
		2898	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};
		2899	}
		2900
		2901	cf::face::set_type $idx, $info->{type};
		2902
		2903	cf::cede_to_tick;
		2904	}
		2905
		2906	if ($soundconf) {
		2907	$soundconf = $enc->decode (delete $soundconf->{data});
		2908
		2909	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2910	my $sound = $soundconf->{compat}[$_]
		2911	or next;
		2912
		2913	my $face = cf::face::find "sound/$sound->[1]";
		2914
		2915	cf::sound::set $sound->[0] => $face;
		2916	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2917	}
		2918
		2919	#TODO
		2920	}
		2921	}
		2922
		2923	1
		2924	}
		2925
		2926	register_exticmd fx_want => sub {
		2927	my ($ns, $want) = @_;
		2928
		2929	while (my ($k, $v) = each %$want) {
		2930	$ns->fx_want ($k, $v);
		2931	}
		2932	};
		2933
		2934	sub reload_regions {
		2935	load_resource_file "$MAPDIR/regions"
		2936	or die "unable to load regions file\n";
		2937
		2938	for (cf::region::list) {
		2939	$_->{match} = qr/$_->{match}/
		2940	if exists $_->{match};
		2941	}
		2942	}
		2943
		2944	sub reload_facedata {
		2945	load_facedata "$DATADIR/facedata"
		2946	or die "unable to load facedata\n";
		2947	}
		2948
		2949	sub reload_archetypes {
		2950	load_resource_file "$DATADIR/archetypes"
		2951	or die "unable to load archetypes\n";
		2952	#d# NEED to laod twice to resolve forward references
		2953	# this really needs to be done in an extra post-pass
		2954	# (which needs to be synchronous, so solve it differently)
		2955	load_resource_file "$DATADIR/archetypes"
		2956	or die "unable to load archetypes\n";
		2957	}
		2958
		2959	sub reload_treasures {
		2960	load_resource_file "$DATADIR/treasures"
		2961	or die "unable to load treasurelists\n";
		2962	}
		2963
		2964	sub reload_resources {
		2965	warn "reloading resource files...\n";
		2966
		2967	reload_regions;
		2968	reload_facedata;
		2969	#reload_archetypes;#d#
		2970	reload_archetypes;
		2971	reload_treasures;
		2972
		2973	warn "finished reloading resource files\n";
		2974	}
		2975
		2976	sub init {
		2977	reload_resources;
		2978	}
1150		2979
1151	sub cfg_load {	2980	sub cfg_load {
1152	open my $fh, "<:utf8", cf::confdir . "/config"	2981	open my $fh, "<:utf8", "$CONFDIR/config"
1153	or return;	2982	or return;
1154		2983
1155	local $/;	2984	local $/;
1156	*CFG = YAML::Syck::Load <$fh>;	2985	*CFG = YAML::Syck::Load <$fh>;
		2986
		2987	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2988
		2989	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2990	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2991
		2992	if (exists $CFG{mlockall}) {
		2993	eval {
		2994	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2995	and die "WARNING: m(un)lockall failed: $!\n";
		2996	};
		2997	warn $@ if $@;
		2998	}
1157	}	2999	}
1158		3000
1159	sub main {	3001	sub main {
		3002	# we must not ever block the main coroutine
		3003	local $Coro::idle = sub {
		3004	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3005	(async {
		3006	Event::one_event;
		3007	})->prio (Coro::PRIO_MAX);
		3008	};
		3009
1160	cfg_load;	3010	cfg_load;
1161	db_load;	3011	db_init;
1162	load_extensions;	3012	load_extensions;
		3013
		3014	$TICK_WATCHER->start;
1163	Event::loop;	3015	Event::loop;
1164	}	3016	}
1165		3017
1166	#############################################################################	3018	#############################################################################
1167	# initialisation	3019	# initialisation and cleanup
1168		3020
1169	sub _perl_reload(&) {	3021	# install some emergency cleanup handlers
		3022	BEGIN {
		3023	for my $signal (qw(INT HUP TERM)) {
		3024	Event->signal (
		3025	reentrant => 0,
		3026	data => WF_AUTOCANCEL,
		3027	signal => $signal,
		3028	prio => 0,
		3029	cb => sub {
		3030	cf::cleanup "SIG$signal";
		3031	},
		3032	);
		3033	}
		3034	}
		3035
		3036	sub write_runtime {
		3037	my $runtime = "$LOCALDIR/runtime";
		3038
		3039	# first touch the runtime file to show we are still running:
		3040	# the fsync below can take a very very long time.
		3041
		3042	IO::AIO::aio_utime $runtime, undef, undef;
		3043
		3044	my $guard = cf::lock_acquire "write_runtime";
		3045
		3046	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3047	or return;
		3048
		3049	my $value = $cf::RUNTIME + 90 + 10;
		3050	# 10 is the runtime save interval, for a monotonic clock
		3051	# 60 allows for the watchdog to kill the server.
		3052
		3053	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3054	and return;
		3055
		3056	# always fsync - this file is important
		3057	aio_fsync $fh
		3058	and return;
		3059
		3060	# touch it again to show we are up-to-date
		3061	aio_utime $fh, undef, undef;
		3062
		3063	close $fh
		3064	or return;
		3065
		3066	aio_rename "$runtime~", $runtime
		3067	and return;
		3068
		3069	warn "runtime file written.\n";
		3070
		3071	1
		3072	}
		3073
		3074	sub emergency_save() {
		3075	my $freeze_guard = cf::freeze_mainloop;
		3076
		3077	warn "enter emergency perl save\n";
		3078
		3079	cf::sync_job {
		3080	# use a peculiar iteration method to avoid tripping on perl
		3081	# refcount bugs in for. also avoids problems with players
		3082	# and maps saved/destroyed asynchronously.
		3083	warn "begin emergency player save\n";
		3084	for my $login (keys %cf::PLAYER) {
		3085	my $pl = $cf::PLAYER{$login} or next;
		3086	$pl->valid or next;
		3087	$pl->save;
		3088	}
		3089	warn "end emergency player save\n";
		3090
		3091	warn "begin emergency map save\n";
		3092	for my $path (keys %cf::MAP) {
		3093	my $map = $cf::MAP{$path} or next;
		3094	$map->valid or next;
		3095	$map->save;
		3096	}
		3097	warn "end emergency map save\n";
		3098
		3099	warn "begin emergency database checkpoint\n";
		3100	BDB::db_env_txn_checkpoint $DB_ENV;
		3101	warn "end emergency database checkpoint\n";
		3102	};
		3103
		3104	warn "leave emergency perl save\n";
		3105	}
		3106
		3107	sub post_cleanup {
1170	my ($msg) = @_;	3108	my ($make_core) = @_;
1171		3109
1172	$msg->("reloading...");	3110	warn Carp::longmess "post_cleanup backtrace"
		3111	if $make_core;
		3112	}
1173		3113
1174	eval {	3114	sub do_reload_perl() {
1175	# cancel all watchers	3115	# can/must only be called in main
		3116	if ($Coro::current != $Coro::main) {
		3117	warn "can only reload from main coroutine";
		3118	return;
		3119	}
		3120
		3121	warn "reloading...";
		3122
		3123	warn "entering sync_job";
		3124
		3125	cf::sync_job {
		3126	cf::write_runtime; # external watchdog should not bark
		3127	cf::emergency_save;
		3128	cf::write_runtime; # external watchdog should not bark
		3129
		3130	warn "syncing database to disk";
		3131	BDB::db_env_txn_checkpoint $DB_ENV;
		3132
		3133	# if anything goes wrong in here, we should simply crash as we already saved
		3134
		3135	warn "cancelling all WF_AUTOCANCEL watchers";
1176	for (Event::all_watchers) {	3136	for (Event::all_watchers) {
1177	$_->cancel if $_->data & WF_AUTOCANCEL;	3137	$_->cancel if $_->data & WF_AUTOCANCEL;
1178	}	3138	}
1179		3139
1180	# unload all extensions	3140	warn "flushing outstanding aio requests";
1181	for (@exts) {	3141	for (;;) {
1182	$msg->("unloading <$_>");	3142	BDB::flush;
1183	unload_extension $_;	3143	IO::AIO::flush;
		3144	Coro::cede;
		3145	last unless IO::AIO::nreqs || BDB::nreqs;
		3146	warn "iterate...";
		3147	}
		3148
		3149	++$RELOAD;
		3150
		3151	warn "cancelling all extension coros";
		3152	$_->cancel for values %EXT_CORO;
		3153	%EXT_CORO = ();
		3154
		3155	warn "removing commands";
		3156	%COMMAND = ();
		3157
		3158	warn "removing ext/exti commands";
		3159	%EXTCMD = ();
		3160	%EXTICMD = ();
		3161
		3162	warn "unloading/nuking all extensions";
		3163	for my $pkg (@EXTS) {
		3164	warn "... unloading $pkg";
		3165
		3166	if (my $cb = $pkg->can ("unload")) {
		3167	eval {
		3168	$cb->($pkg);
		3169	1
		3170	} or warn "$pkg unloaded, but with errors: $@";
1184	}	3171	}
1185		3172
		3173	warn "... nuking $pkg";
		3174	Symbol::delete_package $pkg;
		3175	}
		3176
1186	# unload all modules loaded from $LIBDIR	3177	warn "unloading all perl modules loaded from $LIBDIR";
1187	while (my ($k, $v) = each %INC) {	3178	while (my ($k, $v) = each %INC) {
1188	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3179	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1189		3180
1190	$msg->("removing <$k>");	3181	warn "... unloading $k";
1191	delete $INC{$k};	3182	delete $INC{$k};
1192		3183
1193	$k =~ s/\.pm$//;	3184	$k =~ s/\.pm$//;
1194	$k =~ s/\//::/g;	3185	$k =~ s/\//::/g;
1195		3186
…		…
1198	}	3189	}
1199		3190
1200	Symbol::delete_package $k;	3191	Symbol::delete_package $k;
1201	}	3192	}
1202		3193
1203	# sync database to disk
1204	cf::db_sync;
1205
1206	# get rid of safe::, as good as possible	3194	warn "getting rid of safe::, as good as possible";
1207	Symbol::delete_package "safe::$_"	3195	Symbol::delete_package "safe::$_"
1208	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	3196	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1209		3197
1210	# remove register_script_function callbacks
1211	# TODO
1212
1213	# unload cf.pm "a bit"	3198	warn "unloading cf.pm \"a bit\"";
1214	delete $INC{"cf.pm"};	3199	delete $INC{"cf.pm"};
		3200	delete $INC{"cf/pod.pm"};
1215		3201
1216	# don't, removes xs symbols, too,	3202	# don't, removes xs symbols, too,
1217	# and global variables created in xs	3203	# and global variables created in xs
1218	#Symbol::delete_package __PACKAGE__;	3204	#Symbol::delete_package __PACKAGE__;
1219		3205
1220	# reload cf.pm	3206	warn "unload completed, starting to reload now";
		3207
1221	$msg->("reloading cf.pm");	3208	warn "reloading cf.pm";
1222	require cf;	3209	require cf;
		3210	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1223		3211
1224	# load config and database again	3212	warn "loading config and database again";
1225	cf::cfg_load;	3213	cf::cfg_load;
1226	cf::db_load;
1227		3214
1228	# load extensions	3215	warn "loading extensions";
1229	$msg->("load extensions");
1230	cf::load_extensions;	3216	cf::load_extensions;
1231		3217
1232	# reattach attachments to objects	3218	warn "reattaching attachments to objects/players";
1233	$msg->("reattach");	3219	_global_reattach; # objects, sockets
1234	_global_reattach;	3220	warn "reattaching attachments to maps";
		3221	reattach $_ for values %MAP;
		3222	warn "reattaching attachments to players";
		3223	reattach $_ for values %PLAYER;
		3224
		3225	warn "leaving sync_job";
		3226
		3227	1
		3228	} or do {
		3229	warn $@;
		3230	warn "error while reloading, exiting.";
		3231	exit 1;
1235	};	3232	};
1236	$msg->($@) if $@;
1237		3233
1238	$msg->("reloaded");	3234	warn "reloaded";
1239	};	3235	};
1240		3236
1241	sub perl_reload() {	3237	our $RELOAD_WATCHER; # used only during reload
1242	_perl_reload {	3238
1243	warn $_[0];	3239	sub reload_perl() {
1244	print "$_[0]\n";	3240	# doing reload synchronously and two reloads happen back-to-back,
		3241	# coro crashes during coro_state_free->destroy here.
		3242
		3243	$RELOAD_WATCHER ||= Event->timer (
		3244	reentrant => 0,
		3245	after => 0,
		3246	data => WF_AUTOCANCEL,
		3247	cb => sub {
		3248	do_reload_perl;
		3249	undef $RELOAD_WATCHER;
		3250	},
1245	};	3251	);
1246	}	3252	}
1247		3253
1248	register "<global>", __PACKAGE__;
1249
1250	register_command "perl-reload" => sub {	3254	register_command "reload" => sub {
1251	my ($who, $arg) = @_;	3255	my ($who, $arg) = @_;
1252		3256
1253	if ($who->flag (FLAG_WIZ)) {	3257	if ($who->flag (FLAG_WIZ)) {
1254	_perl_reload {	3258	$who->message ("reloading server.");
1255	warn $_[0];	3259	async { reload_perl };
1256	$who->message ($_[0]);	3260	}
		3261	};
		3262
		3263	unshift @INC, $LIBDIR;
		3264
		3265	my $bug_warning = 0;
		3266
		3267	our @WAIT_FOR_TICK;
		3268	our @WAIT_FOR_TICK_BEGIN;
		3269
		3270	sub wait_for_tick {
		3271	return unless $TICK_WATCHER->is_active;
		3272	return if $Coro::current == $Coro::main;
		3273
		3274	my $signal = new Coro::Signal;
		3275	push @WAIT_FOR_TICK, $signal;
		3276	$signal->wait;
		3277	}
		3278
		3279	sub wait_for_tick_begin {
		3280	return unless $TICK_WATCHER->is_active;
		3281	return if $Coro::current == $Coro::main;
		3282
		3283	my $signal = new Coro::Signal;
		3284	push @WAIT_FOR_TICK_BEGIN, $signal;
		3285	$signal->wait;
		3286	}
		3287
		3288	my $min = 1e6;#d#
		3289	my $avg = 10;
		3290	$TICK_WATCHER = Event->timer (
		3291	reentrant => 0,
		3292	parked => 1,
		3293	prio => 0,
		3294	at => $NEXT_TICK || $TICK,
		3295	data => WF_AUTOCANCEL,
		3296	cb => sub {
		3297	if ($Coro::current != $Coro::main) {
		3298	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3299	unless ++$bug_warning > 10;
		3300	return;
		3301	}
		3302
		3303	$NOW = $tick_start = Event::time;
		3304
		3305	cf::server_tick; # one server iteration
		3306
		3307	0 && sync_job {#d#
		3308	for(1..10) {
		3309	my $t = Event::time;
		3310	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3311	or die;
		3312
		3313	$map->width (50);
		3314	$map->height (50);
		3315	$map->alloc;
		3316	$map->_load_objects ("/tmp/x.map", 1);
		3317	my $t = Event::time - $t;
		3318
		3319	#next unless $t < 0.0013;#d#
		3320	if ($t < $min) {
		3321	$min = $t;
		3322	}
		3323	$avg = $avg * 0.99 + $t * 0.01;
		3324	}
		3325	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3326	exit 0;
		3327	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
1257	};	3328	};
1258	}
1259	};
1260		3329
1261	unshift @INC, $LIBDIR;	3330	$RUNTIME += $TICK;
1262
1263	$TICK_WATCHER = Event->timer (
1264	prio => 0,
1265	at => $NEXT_TICK || 1,
1266	data => WF_AUTOCANCEL,
1267	cb => sub {
1268	cf::server_tick; # one server iteration
1269
1270	my $NOW = Event::time;
1271	$NEXT_TICK += $TICK;	3331	$NEXT_TICK += $TICK;
		3332
		3333	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3334	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3335	Coro::async_pool {
		3336	write_runtime
		3337	or warn "ERROR: unable to write runtime file: $!";
		3338	};
		3339	}
		3340
		3341	# my $AFTER = Event::time;
		3342	# warn $AFTER - $NOW;#d#
		3343
		3344	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3345	$sig->send;
		3346	}
		3347	while (my $sig = shift @WAIT_FOR_TICK) {
		3348	$sig->send;
		3349	}
		3350
		3351	$NOW = Event::time;
1272		3352
1273	# if we are delayed by four ticks or more, skip them all	3353	# if we are delayed by four ticks or more, skip them all
1274	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	3354	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1275		3355
1276	$TICK_WATCHER->at ($NEXT_TICK);	3356	$TICK_WATCHER->at ($NEXT_TICK);
1277	$TICK_WATCHER->start;	3357	$TICK_WATCHER->start;
		3358
		3359	$LOAD = ($NOW - $tick_start) / $TICK;
		3360	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3361
		3362	_post_tick;
		3363
		3364
1278	},	3365	},
1279	);	3366	);
1280		3367
		3368	{
		3369	BDB::max_poll_time $TICK * 0.1;
		3370	$BDB_POLL_WATCHER = Event->io (
		3371	reentrant => 0,
		3372	fd => BDB::poll_fileno,
		3373	poll => 'r',
		3374	prio => 0,
		3375	data => WF_AUTOCANCEL,
		3376	cb => \&BDB::poll_cb,
		3377	);
		3378	BDB::min_parallel 8;
		3379
		3380	BDB::set_sync_prepare {
		3381	my $status;
		3382	my $current = $Coro::current;
		3383	(
		3384	sub {
		3385	$status = $!;
		3386	$current->ready; undef $current;
		3387	},
		3388	sub {
		3389	Coro::schedule while defined $current;
		3390	$! = $status;
		3391	},
		3392	)
		3393	};
		3394
		3395	unless ($DB_ENV) {
		3396	$DB_ENV = BDB::db_env_create;
		3397
		3398	cf::sync_job {
		3399	eval {
		3400	BDB::db_env_open
		3401	$DB_ENV,
		3402	$BDBDIR,
		3403	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3404	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3405	0666;
		3406
		3407	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3408
		3409	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3410	$DB_ENV->set_lk_detect;
		3411	};
		3412
		3413	cf::cleanup "db_env_open(db): $@" if $@;
		3414	};
		3415	}
		3416	}
		3417
		3418	{
		3419	IO::AIO::min_parallel 8;
		3420
		3421	undef $Coro::AIO::WATCHER;
1281	IO::AIO::max_poll_time $TICK * 0.2;	3422	IO::AIO::max_poll_time $TICK * 0.1;
1282		3423	$AIO_POLL_WATCHER = Event->io (
1283	Event->io (fd => IO::AIO::poll_fileno,	3424	reentrant => 0,
1284	poll => 'r',
1285	prio => 5,
1286	data => WF_AUTOCANCEL,	3425	data => WF_AUTOCANCEL,
		3426	fd => IO::AIO::poll_fileno,
		3427	poll => 'r',
		3428	prio => 6,
1287	cb => \&IO::AIO::poll_cb);	3429	cb => \&IO::AIO::poll_cb,
		3430	);
		3431	}
		3432
		3433	my $_log_backtrace;
		3434
		3435	sub _log_backtrace {
		3436	my ($msg, @addr) = @_;
		3437
		3438	$msg =~ s/\n//;
		3439
		3440	# limit the # of concurrent backtraces
		3441	if ($_log_backtrace < 2) {
		3442	++$_log_backtrace;
		3443	async {
		3444	my @bt = fork_call {
		3445	@addr = map { sprintf "%x", $_ } @addr;
		3446	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3447	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3448	or die "addr2line: $!";
		3449
		3450	my @funcs;
		3451	my @res = <$fh>;
		3452	chomp for @res;
		3453	while (@res) {
		3454	my ($func, $line) = splice @res, 0, 2, ();
		3455	push @funcs, "[$func] $line";
		3456	}
		3457
		3458	@funcs
		3459	};
		3460
		3461	LOG llevInfo, "[ABT] $msg\n";
		3462	LOG llevInfo, "[ABT] $_\n" for @bt;
		3463	--$_log_backtrace;
		3464	};
		3465	} else {
		3466	LOG llevInfo, "[ABT] $msg\n";
		3467	LOG llevInfo, "[ABT] [suppressed]\n";
		3468	}
		3469	}
		3470
		3471	# load additional modules
		3472	use cf::pod;
		3473
		3474	END { cf::emergency_save }
1288		3475
1289	1	3476	1
1290		3477

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