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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.104 by root, Sat Dec 30 16:56:16 2006 UTC vs.
Revision 1.331 by root, Mon Aug 13 13:10:01 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3;	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;
		22	use Coro::AIO;
		23	use Coro::Storable;
18		24
19	use IO::AIO 2.3;	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 (2); # run main coroutine ("the server") with very high priority	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
		60	our $RELOAD; # number of reloads so far
36	our @EVENT;	61	our @EVENT;
37	our $LIBDIR = datadir . "/ext";
38		62
39	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(!)
40	our $TICK_WATCHER;	76	our $TICK_WATCHER;
		77	our $AIO_POLL_WATCHER;
		78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
41	our $NEXT_TICK;	79	our $NEXT_TICK;
42	our $NOW;	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;
43		85
44	our %CFG;	86	our %CFG;
45		87
46	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
47	our $RUNTIME;	89	our $RUNTIME;
48		90
		91	our %PLAYER; # all users
49	our %MAP; # all maps	92	our %MAP; # all maps
50	our $LINK_MAP; # the special {link} map	93	our $LINK_MAP; # the special {link} map, which is always available
51	our $FREEZE;	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 $tick_start; # for load detecting purposes
52		101
53	binmode STDOUT;	102	binmode STDOUT;
54	binmode STDERR;	103	binmode STDERR;
55		104
56	# read virtual server time, if available	105	# read virtual server time, if available
57	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
58	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
59	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
60	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
61	}	110	}
62		111
63	mkdir cf::localdir;	112	mkdir $_
64	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
65	mkdir cf::localdir . "/" . cf::tmpdir;
66	mkdir cf::localdir . "/" . cf::uniquedir;
67		114
68	our %EXT_CORO;	115	our $EMERGENCY_POSITION;
		116
		117	sub cf::map::normalise;
69		118
70	#############################################################################	119	#############################################################################
71		120
72	=head2 GLOBAL VARIABLES	121	=head2 GLOBAL VARIABLES
73		122
…		…
80	=item $cf::RUNTIME	129	=item $cf::RUNTIME
81		130
82	The time this server has run, starts at 0 and is increased by $cf::TICK on	131	The time this server has run, starts at 0 and is increased by $cf::TICK on
83	every server tick.	132	every server tick.
84		133
85	=item $cf::LIBDIR	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
86		137
87	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
88	be found. It will be added to C<@INC> automatically.	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.
89		142
90	=item $cf::NOW	143	=item $cf::NOW
91		144
92	The time of the last (current) server tick.	145	The time of the last (current) server tick.
93		146
94	=item $cf::TICK	147	=item $cf::TICK
95		148
96	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.
97		160
98	=item %cf::CFG	161	=item %cf::CFG
99		162
100	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
101	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.
102		177
103	=back	178	=back
104		179
105	=cut	180	=cut
106		181
107	BEGIN {	182	BEGIN {
108	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
109	my $msg = join "", @_;	184	my $msg = join "", @_;
110	utf8::encode $msg;
111		185
112	$msg .= "\n"	186	$msg .= "\n"
113	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
114		188
		189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
115	LOG llevError, "cfperl: $msg";	192	LOG llevError, $msg;
116	};	193	};
117	}	194	}
118		195
119	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
120	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
121	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
122	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
123	@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';
124	@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)
125		203
126	# 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
127	# within the Safe compartment.	205	# within the Safe compartment.
128	for my $pkg (qw(	206	for my $pkg (qw(
129	cf::global cf::attachable	207	cf::global cf::attachable
…		…
138		216
139	$Event::DIED = sub {	217	$Event::DIED = sub {
140	warn "error in event callback: @_";	218	warn "error in event callback: @_";
141	};	219	};
142		220
143	my %ext_pkg;	221	#############################################################################
144	my @exts;
145	my @hook;
146		222
147	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
148		224
149	=over 4	225	=over 4
150		226
151	=cut	227	=item dumpval $ref
152		228
153	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	}
154		249
155	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
156		251
157	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
158		253
159	=cut
160
161	sub from_json($) {
162	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
163	JSON::Syck::Load $_[0]
164	}
165
166	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
167		255
168	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
169		257
170	=cut	258	=cut
171		259
172	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
173	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
174	JSON::Syck::Dump $_[0]
175	}
176		261
		262	sub to_json ($) { $json_coder->encode ($_[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
177	=item $coro = cf::coro { BLOCK }	448	=item $coro = cf::async_ext { BLOCK }
178		449
179	Creates and returns a new coro. This coro is automcatially being canceled	450	Like async, but this coro is automatically being canceled when the
180	when the extension calling this is being unloaded.	451	extension calling this is being unloaded.
181		452
182	=cut	453	=cut
183		454
184	sub coro(&) {	455	sub async_ext(&) {
185	my $cb = shift;	456	my $cb = shift;
186		457
187	my $coro; $coro = async {	458	my $coro = &Coro::async ($cb);
188	eval {
189	$cb->();
190	};
191	warn $@ if $@;
192	};
193		459
194	$coro->on_destroy (sub {	460	$coro->on_destroy (sub {
195	delete $EXT_CORO{$coro+0};	461	delete $EXT_CORO{$coro+0};
196	});	462	});
197	$EXT_CORO{$coro+0} = $coro;	463	$EXT_CORO{$coro+0} = $coro;
198		464
199	$coro	465	$coro
200	}	466	}
201		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 });
		655	}
		656
202	=back	657	=back
203		658
204	=cut	659	=cut
205		660
206	#############################################################################	661	#############################################################################
…		…
211	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")
212	to it. All such attachable objects support the following methods.	667	to it. All such attachable objects support the following methods.
213		668
214	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>
215	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
216	crossfire+).	671	Crossfire TRT).
217		672
218	=over 4	673	=over 4
219		674
220	=item $attachable->attach ($attachment, key => $value...)	675	=item $attachable->attach ($attachment, key => $value...)
221		676
…		…
335	our @CB_TYPE = (); # registry for type (cf-object class) based events	790	our @CB_TYPE = (); # registry for type (cf-object class) based events
336	our @CB_MAP = ();	791	our @CB_MAP = ();
337		792
338	my %attachment;	793	my %attachment;
339		794
		795	sub cf::attachable::thawer_merge {
		796	# simply override everything except _meta
		797	local $_[0]{_meta};
		798	%{$_[0]} = %{$_[1]};
		799	}
		800
340	sub _attach_cb($$$$) {	801	sub _attach_cb($$$$) {
341	my ($registry, $event, $prio, $cb) = @_;	802	my ($registry, $event, $prio, $cb) = @_;
342		803
343	use sort 'stable';	804	use sort 'stable';
344		805
…		…
378	$registry = $CB_TYPE[$object_type] ||= [];	839	$registry = $CB_TYPE[$object_type] ||= [];
379		840
380	} elsif ($type eq "subtype") {	841	} elsif ($type eq "subtype") {
381	defined $object_type or Carp::croak "subtype specified without type";	842	defined $object_type or Carp::croak "subtype specified without type";
382	my $object_subtype = shift @arg;	843	my $object_subtype = shift @arg;
383	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	844	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
384		845
385	} elsif ($type eq "package") {	846	} elsif ($type eq "package") {
386	my $pkg = shift @arg;	847	my $pkg = shift @arg;
387		848
388	while (my ($name, $id) = each %cb_id) {	849	while (my ($name, $id) = each %cb_id) {
…		…
417	_attach $registry, $klass, @attach;	878	_attach $registry, $klass, @attach;
418	}	879	}
419		880
420	$obj->{$name} = \%arg;	881	$obj->{$name} = \%arg;
421	} else {	882	} else {
422	warn "object uses attachment '$name' that is not available, postponing.\n";	883	warn "object uses attachment '$name' which is not available, postponing.\n";
423	}	884	}
424		885
425	$obj->{_attachment}{$name} = undef;	886	$obj->{_attachment}{$name} = undef;
426	}	887	}
427		888
…		…
429	if (ref $_[0]) {	890	if (ref $_[0]) {
430	_object_attach @_;	891	_object_attach @_;
431	} else {	892	} else {
432	_attach shift->_attach_registry, @_;	893	_attach shift->_attach_registry, @_;
433	}	894	}
		895	_recalc_want;
434	};	896	};
435		897
436	# all those should be optimised	898	# all those should be optimised
437	sub cf::attachable::detach {	899	sub cf::attachable::detach {
438	my ($obj, $name) = @_;	900	my ($obj, $name) = @_;
…		…
441	delete $obj->{_attachment}{$name};	903	delete $obj->{_attachment}{$name};
442	reattach ($obj);	904	reattach ($obj);
443	} else {	905	} else {
444	Carp::croak "cannot, currently, detach class attachments";	906	Carp::croak "cannot, currently, detach class attachments";
445	}	907	}
		908	_recalc_want;
446	};	909	};
447		910
448	sub cf::attachable::attached {	911	sub cf::attachable::attached {
449	my ($obj, $name) = @_;	912	my ($obj, $name) = @_;
450		913
…		…
465	";	928	";
466	die if $@;	929	die if $@;
467	}	930	}
468		931
469	our $override;	932	our $override;
470	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?
471		934
472	sub override {	935	sub override {
473	$override = 1;	936	$override = 1;
474	@invoke_results = ();	937	@INVOKE_RESULTS = (@_);
475	}	938	}
476		939
477	sub do_invoke {	940	sub do_invoke {
478	my $event = shift;	941	my $event = shift;
479	my $callbacks = shift;	942	my $callbacks = shift;
480		943
481	@invoke_results = ();	944	@INVOKE_RESULTS = ();
482		945
483	local $override;	946	local $override;
484		947
485	for (@$callbacks) {	948	for (@$callbacks) {
486	eval { &{$_->[1]} };	949	eval { &{$_->[1]} };
…		…
503		966
504	Generate an object-specific event with the given arguments.	967	Generate an object-specific event with the given arguments.
505		968
506	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
507	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
508	results (if you must, access C<@cf::invoke_results> directly).	971	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
509		972
510	=back	973	=back
511		974
512	=cut	975	=cut
513		976
514	#############################################################################	977	#############################################################################
515	# object support	978	# object support
		979	#
		980
		981	sub _can_merge {
		982	my ($ob1, $ob2) = @_;
		983
		984	local $Storable::canonical = 1;
		985	my $fob1 = Storable::freeze $ob1;
		986	my $fob2 = Storable::freeze $ob2;
		987
		988	$fob1 eq $fob2
		989	}
516		990
517	sub reattach {	991	sub reattach {
518	# basically do the same as instantiate, without calling instantiate	992	# basically do the same as instantiate, without calling instantiate
519	my ($obj) = @_;	993	my ($obj) = @_;
		994
		995	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
520		996
521	my $registry = $obj->registry;	997	my $registry = $obj->registry;
522		998
523	@$registry = ();	999	@$registry = ();
524		1000
…		…
563	);	1039	);
564		1040
565	sub object_freezer_save {	1041	sub object_freezer_save {
566	my ($filename, $rdata, $objs) = @_;	1042	my ($filename, $rdata, $objs) = @_;
567		1043
		1044	sync_job {
568	if (length $$rdata) {	1045	if (length $$rdata) {
569	warn sprintf "saving %s (%d,%d)\n",	1046	warn sprintf "saving %s (%d,%d)\n",
570	$filename, length $$rdata, scalar @$objs;	1047	$filename, length $$rdata, scalar @$objs;
571		1048
572	if (open my $fh, ">:raw", "$filename~") {	1049	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
573	chmod SAVE_MODE, $fh;
574	syswrite $fh, $$rdata;
575	close $fh;
576
577	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
578	chmod SAVE_MODE, $fh;	1050	chmod SAVE_MODE, $fh;
579	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	1051	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1052	aio_fsync $fh if $cf::USE_FSYNC;
580	close $fh;	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 $fh;
581	rename "$filename.pst~", "$filename.pst";	1062	aio_rename "$filename.pst~", "$filename.pst";
		1063	}
		1064	} else {
		1065	aio_unlink "$filename.pst";
		1066	}
		1067
		1068	aio_rename "$filename~", $filename;
582	} else {	1069	} else {
583	unlink "$filename.pst";	1070	warn "FATAL: $filename~: $!\n";
584	}	1071	}
585
586	rename "$filename~", $filename;
587	} else {	1072	} else {
588	warn "FATAL: $filename~: $!\n";
589	}
590	} else {
591	unlink $filename;	1073	aio_unlink $filename;
592	unlink "$filename.pst";	1074	aio_unlink "$filename.pst";
		1075	}
593	}	1076	}
594	}	1077	}
595		1078
596	sub object_freezer_as_string {	1079	sub object_freezer_as_string {
597	my ($rdata, $objs) = @_;	1080	my ($rdata, $objs) = @_;
…		…
602	}	1085	}
603		1086
604	sub object_thawer_load {	1087	sub object_thawer_load {
605	my ($filename) = @_;	1088	my ($filename) = @_;
606		1089
607	local $/;	1090	my ($data, $av);
608		1091
609	my $av;	1092	(aio_load $filename, $data) >= 0
		1093	or return;
610		1094
611	#TODO: use sysread etc.	1095	unless (aio_stat "$filename.pst") {
612	if (open my $data, "<:raw:perlio", $filename) {	1096	(aio_load "$filename.pst", $av) >= 0
613	$data = <$data>;	1097	or return;
614	if (open my $pst, "<:raw:perlio", "$filename.pst") {
615	$av = eval { (Storable::thaw <$pst>)->{objs} };	1098	$av = eval { (Storable::thaw $av)->{objs} };
616	}	1099	}
		1100
		1101	warn sprintf "loading %s (%d)\n",
		1102	$filename, length $data, scalar @{$av || []};
617	return ($data, $av);	1103	return ($data, $av);
618	}
619
620	()
621	}	1104	}
		1105
		1106	=head2 COMMAND CALLBACKS
		1107
		1108	=over 4
		1109
		1110	=cut
622		1111
623	#############################################################################	1112	#############################################################################
624	# command handling &c	1113	# command handling &c
625		1114
626	=item cf::register_command $name => \&callback($ob,$args);	1115	=item cf::register_command $name => \&callback($ob,$args);
…		…
639	push @{ $COMMAND{$name} }, [$caller, $cb];	1128	push @{ $COMMAND{$name} }, [$caller, $cb];
640	}	1129	}
641		1130
642	=item cf::register_extcmd $name => \&callback($pl,$packet);	1131	=item cf::register_extcmd $name => \&callback($pl,$packet);
643		1132
644	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.
645		1138
646	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
647	called.	1140	called.
648		1141
		1142	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1143
		1144	Register a callback for execution when the client sends an (asynchronous)
		1145	exticmd packet. Exti commands are processed by the server as soon as they
		1146	are received, i.e. out of order w.r.t. other commands. The first argument
		1147	is a client socket. Exti commands can be received anytime, even before
		1148	log-in.
		1149
		1150	If the callback returns something, it is sent back as if reply was being
		1151	called.
		1152
649	=cut	1153	=cut
650		1154
651	sub register_extcmd {	1155	sub register_extcmd {
652	my ($name, $cb) = @_;	1156	my ($name, $cb) = @_;
653		1157
654	my $caller = caller;
655	#warn "registering extcmd '$name' to '$caller'";
656
657	$EXTCMD{$name} = [$cb, $caller];	1158	$EXTCMD{$name} = $cb;
		1159	}
		1160
		1161	sub register_exticmd {
		1162	my ($name, $cb) = @_;
		1163
		1164	$EXTICMD{$name} = $cb;
658	}	1165	}
659		1166
660	cf::player->attach (	1167	cf::player->attach (
661	on_command => sub {	1168	on_command => sub {
662	my ($pl, $name, $params) = @_;	1169	my ($pl, $name, $params) = @_;
…		…
671	cf::override;	1178	cf::override;
672	},	1179	},
673	on_extcmd => sub {	1180	on_extcmd => sub {
674	my ($pl, $buf) = @_;	1181	my ($pl, $buf) = @_;
675		1182
676	my $msg = eval { from_json $buf };	1183	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
677		1184
678	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
679	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
680	if (my %reply = $cb->[0]->($pl, $msg)) {	1192	my @reply = $cb->($pl, @payload);
		1193
681	$pl->ext_reply ($msg->{msgid}, %reply);	1194	$pl->ext_reply ($reply, @reply)
682	}	1195	if $reply;
683	}	1196	}
684	} else {	1197	} else {
685	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
686	}	1199	}
687		1200
688	cf::override;	1201	cf::override;
689	},	1202	},
690	);	1203	);
691		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 $player->send_msg ($channel, $msg, $color, [extra...])
		1378
		1379	=cut
		1380
		1381	sub send_msg {
		1382	my $ns = shift->ns
		1383	or return;
		1384	$ns->send_msg (@_);
		1385	}
		1386
		1387	=item $pl->quit_character
		1388
		1389	Nukes the player without looking back. If logged in, the connection will
		1390	be destroyed. May block for a long time.
		1391
		1392	=cut
		1393
		1394	sub quit_character {
		1395	my ($pl) = @_;
		1396
		1397	my $name = $pl->ob->name;
		1398
		1399	$pl->{deny_save} = 1;
		1400	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1401
		1402	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1403	$pl->deactivate;
		1404	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1405	$pl->ns->destroy if $pl->ns;
		1406
		1407	my $path = playerdir $pl;
		1408	my $temp = "$path~$cf::RUNTIME~deleting~";
		1409	aio_rename $path, $temp;
		1410	delete $cf::PLAYER{$pl->ob->name};
		1411	$pl->destroy;
		1412
		1413	my $prefix = qr<^~\Q$name\E/>;
		1414
		1415	# nuke player maps
		1416	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1417
		1418	IO::AIO::aio_rmtree $temp;
		1419	}
		1420
		1421	=item $pl->kick
		1422
		1423	Kicks a player out of the game. This destroys the connection.
		1424
		1425	=cut
		1426
		1427	sub kick {
		1428	my ($pl, $kicker) = @_;
		1429
		1430	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1431	$pl->killer ("kicked");
		1432	$pl->ns->destroy;
		1433	}
		1434
		1435	=item cf::player::list_logins
		1436
		1437	Returns am arrayref of all valid playernames in the system, can take a
		1438	while and may block, so not sync_job-capable, ever.
		1439
		1440	=cut
		1441
		1442	sub list_logins {
		1443	my $dirs = aio_readdir $PLAYERDIR
		1444	or return [];
		1445
		1446	my @logins;
		1447
		1448	for my $login (@$dirs) {
		1449	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1450	aio_read $fh, 0, 512, my $buf, 0 or next;
		1451	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1452
		1453	utf8::decode $login;
		1454	push @logins, $login;
		1455	}
		1456
		1457	\@logins
		1458	}
		1459
		1460	=item $player->maps
		1461
		1462	Returns an arrayref of map paths that are private for this
		1463	player. May block.
		1464
		1465	=cut
		1466
		1467	sub maps($) {
		1468	my ($pl) = @_;
		1469
		1470	$pl = ref $pl ? $pl->ob->name : $pl;
		1471
		1472	my $files = aio_readdir playerdir $pl
		1473	or return;
		1474
		1475	my @paths;
		1476
		1477	for (@$files) {
		1478	utf8::decode $_;
		1479	next if /\.(?:pl|pst)$/;
		1480	next unless /^$PATH_SEP/o;
		1481
		1482	push @paths, cf::map::normalise "~$pl/$_";
		1483	}
		1484
		1485	\@paths
		1486	}
		1487
		1488	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1489
		1490	Expand crossfire pod fragments into protocol xml.
		1491
		1492	=cut
		1493
		1494	sub expand_cfpod {
		1495	((my $self), (local $_)) = @_;
		1496
		1497	# escape & and <
		1498	s/&/&amp;/g;
		1499	s/(?<![BIUGH])</&lt;/g;
		1500
		1501	# this is buggy, it needs to properly take care of nested <'s
		1502
		1503	1 while
		1504	# replace B<>, I<>, U<> etc.
		1505	s/B<([^\>]*)>/<b>$1<\/b>/
		1506	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1507	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1508	# replace G<male|female> tags
		1509	|| s{G<([^>|]*)\|([^>]*)>}{
		1510	$self->gender ? $2 : $1
		1511	}ge
		1512	# replace H<hint text>
		1513	|| s{H<([^\>]*)>}
		1514	{
		1515	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1516	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1517	"")
		1518	[$self->{hintmode}]
		1519	}ge;
		1520
		1521	# create single paragraphs (very hackish)
		1522	s/(?<=\S)\n(?=\w)/ /g;
		1523
		1524	# compress some whitespace
		1525	s/\s+\n/\n/g; # ws line-ends
		1526	s/\n\n+/\n/g; # double lines
		1527	s/^\n+//; # beginning lines
		1528	s/\n+$//; # ending lines
		1529
		1530	$_
		1531	}
		1532
		1533	sub hintmode {
		1534	$_[0]{hintmode} = $_[1] if @_ > 1;
		1535	$_[0]{hintmode}
		1536	}
		1537
		1538	=item $player->ext_reply ($msgid, @msg)
		1539
		1540	Sends an ext reply to the player.
		1541
		1542	=cut
		1543
		1544	sub ext_reply($$@) {
		1545	my ($self, $id, @msg) = @_;
		1546
		1547	if ($self->ns->extcmd == 2) {
		1548	$self->send ("ext " . $self->ns->{json_coder}->encode (["reply-$id", @msg]));
		1549	} elsif ($self->ns->extcmd == 1) {
		1550	#TODO: version 1, remove
		1551	unshift @msg, msgtype => "reply", msgid => $id;
		1552	$self->send ("ext " . $self->ns->{json_coder}->encode ({@msg}));
		1553	}
		1554	}
		1555
		1556	=item $player->ext_msg ($type, @msg)
		1557
		1558	Sends an ext event to the client.
		1559
		1560	=cut
		1561
		1562	sub ext_msg($$@) {
		1563	my ($self, $type, @msg) = @_;
		1564
		1565	$self->ns->ext_msg ($type, @msg);
		1566	}
		1567
		1568	=head3 cf::region
		1569
		1570	=over 4
		1571
		1572	=cut
		1573
		1574	package cf::region;
		1575
		1576	=item cf::region::find_by_path $path
		1577
		1578	Tries to decuce the likely region for a map knowing only its path.
		1579
		1580	=cut
		1581
		1582	sub find_by_path($) {
		1583	my ($path) = @_;
		1584
		1585	my ($match, $specificity);
		1586
		1587	for my $region (list) {
		1588	if ($region->{match} && $path =~ $region->{match}) {
		1589	($match, $specificity) = ($region, $region->specificity)
		1590	if $region->specificity > $specificity;
		1591	}
		1592	}
		1593
		1594	$match
		1595	}
		1596
		1597	=back
		1598
		1599	=head3 cf::map
		1600
		1601	=over 4
		1602
		1603	=cut
		1604
		1605	package cf::map;
		1606
		1607	use Fcntl;
		1608	use Coro::AIO;
		1609
		1610	use overload
		1611	'""' => \&as_string,
		1612	fallback => 1;
		1613
		1614	our $MAX_RESET = 3600;
		1615	our $DEFAULT_RESET = 3000;
		1616
		1617	sub generate_random_map {
		1618	my ($self, $rmp) = @_;
		1619	# mit "rum" bekleckern, nicht
		1620	$self->_create_random_map (
		1621	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1622	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1623	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1624	$rmp->{exit_on_final_map},
		1625	$rmp->{xsize}, $rmp->{ysize},
		1626	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1627	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1628	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1629	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1630	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1631	(cf::region::find $rmp->{region}), $rmp->{custom}
		1632	)
		1633	}
		1634
		1635	=item cf::map->register ($regex, $prio)
		1636
		1637	Register a handler for the map path matching the given regex at the
		1638	givne priority (higher is better, built-in handlers have priority 0, the
		1639	default).
		1640
		1641	=cut
		1642
692	sub register {	1643	sub register {
		1644	my (undef, $regex, $prio) = @_;
		1645	my $pkg = caller;
		1646
		1647	no strict;
		1648	push @{"$pkg\::ISA"}, __PACKAGE__;
		1649
		1650	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1651	}
		1652
		1653	# also paths starting with '/'
		1654	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1655
		1656	sub thawer_merge {
693	my ($base, $pkg) = @_;	1657	my ($self, $merge) = @_;
694		1658
695	#TODO	1659	# we have to keep some variables in memory intact
696	}	1660	local $self->{path};
		1661	local $self->{load_path};
697		1662
698	sub load_extension {	1663	$self->SUPER::thawer_merge ($merge);
		1664	}
		1665
		1666	sub normalise {
699	my ($path) = @_;	1667	my ($path, $base) = @_;
700		1668
701	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1669	$path = "$path"; # make sure its a string
702	my $base = $1;
703	my $pkg = $1;
704	$pkg =~ s/[^[:word:]]/_/g;
705	$pkg = "ext::$pkg";
706		1670
707	warn "loading '$path' into '$pkg'\n";	1671	$path =~ s/\.map$//;
708		1672
709	open my $fh, "<:utf8", $path	1673	# map plan:
710	or die "$path: $!";	1674	#
		1675	# /! non-realised random map exit (special hack!)
		1676	# {... are special paths that are not being touched
		1677	# ?xxx/... are special absolute paths
		1678	# ?random/... random maps
		1679	# /... normal maps
		1680	# ~user/... per-player map of a specific user
711		1681
712	my $source =	1682	$path =~ s/$PATH_SEP/\//go;
713	"package $pkg; use strict; use utf8;\n"
714	. "#line 1 \"$path\"\n{\n"
715	. (do { local $/; <$fh> })
716	. "\n};\n1";
717		1683
718	eval $source	1684	# treat it as relative path if it starts with
719	or die $@ ? "$path: $@\n"	1685	# something that looks reasonable
720	: "extension disabled.\n";	1686	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1687	$base or Carp::carp "normalise called with relative path and no base: '$path'";
721		1688
722	push @exts, $pkg;	1689	$base =~ s{[^/]+/?$}{};
723	$ext_pkg{$base} = $pkg;	1690	$path = "$base/$path";
724
725	# no strict 'refs';
726	# @{"$pkg\::ISA"} = ext::;
727
728	register $base, $pkg;
729	}
730
731	sub unload_extension {
732	my ($pkg) = @_;
733
734	warn "removing extension $pkg\n";
735
736	# remove hooks
737	#TODO
738	# for my $idx (0 .. $#PLUGIN_EVENT) {
739	# delete $hook[$idx]{$pkg};
740	# }	1691	}
741		1692
742	# remove commands	1693	for ($path) {
743	for my $name (keys %COMMAND) {	1694	redo if s{//}{/};
744	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1695	redo if s{/\.?/}{/};
		1696	redo if s{/[^/]+/\.\./}{/};
		1697	}
745		1698
746	if (@cb) {	1699	$path
747	$COMMAND{$name} = \@cb;	1700	}
		1701
		1702	sub new_from_path {
		1703	my (undef, $path, $base) = @_;
		1704
		1705	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1706
		1707	$path = normalise $path, $base;
		1708
		1709	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1710	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1711	my $self = bless cf::map::new, $pkg;
		1712	$self->{path} = $path; $self->path ($path);
		1713	$self->init; # pass $1 etc.
		1714	return $self;
		1715	}
		1716	}
		1717
		1718	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1719	()
		1720	}
		1721
		1722	sub init {
		1723	my ($self) = @_;
		1724
		1725	$self
		1726	}
		1727
		1728	sub as_string {
		1729	my ($self) = @_;
		1730
		1731	"$self->{path}"
		1732	}
		1733
		1734	# the displayed name, this is a one way mapping
		1735	sub visible_name {
		1736	&as_string
		1737	}
		1738
		1739	# the original (read-only) location
		1740	sub load_path {
		1741	my ($self) = @_;
		1742
		1743	"$MAPDIR/$self->{path}.map"
		1744	}
		1745
		1746	# the temporary/swap location
		1747	sub save_path {
		1748	my ($self) = @_;
		1749
		1750	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1751	"$TMPDIR/$path.map"
		1752	}
		1753
		1754	# the unique path, undef == no special unique path
		1755	sub uniq_path {
		1756	my ($self) = @_;
		1757
		1758	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1759	"$UNIQUEDIR/$path"
		1760	}
		1761
		1762	# and all this just because we cannot iterate over
		1763	# all maps in C++...
		1764	sub change_all_map_light {
		1765	my ($change) = @_;
		1766
		1767	$_->change_map_light ($change)
		1768	for grep $_->outdoor, values %cf::MAP;
		1769	}
		1770
		1771	sub decay_objects {
		1772	my ($self) = @_;
		1773
		1774	return if $self->{deny_reset};
		1775
		1776	$self->do_decay_objects;
		1777	}
		1778
		1779	sub unlink_save {
		1780	my ($self) = @_;
		1781
		1782	utf8::encode (my $save = $self->save_path);
		1783	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1784	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1785	}
		1786
		1787	sub load_header_from($) {
		1788	my ($self, $path) = @_;
		1789
		1790	utf8::encode $path;
		1791	#aio_open $path, O_RDONLY, 0
		1792	# or return;
		1793
		1794	$self->_load_header ($path)
		1795	or return;
		1796
		1797	$self->{load_path} = $path;
		1798
		1799	1
		1800	}
		1801
		1802	sub load_header_orig {
		1803	my ($self) = @_;
		1804
		1805	$self->load_header_from ($self->load_path)
		1806	}
		1807
		1808	sub load_header_temp {
		1809	my ($self) = @_;
		1810
		1811	$self->load_header_from ($self->save_path)
		1812	}
		1813
		1814	sub prepare_temp {
		1815	my ($self) = @_;
		1816
		1817	$self->last_access ((delete $self->{last_access})
		1818	|| $cf::RUNTIME); #d#
		1819	# safety
		1820	$self->{instantiate_time} = $cf::RUNTIME
		1821	if $self->{instantiate_time} > $cf::RUNTIME;
		1822	}
		1823
		1824	sub prepare_orig {
		1825	my ($self) = @_;
		1826
		1827	$self->{load_original} = 1;
		1828	$self->{instantiate_time} = $cf::RUNTIME;
		1829	$self->last_access ($cf::RUNTIME);
		1830	$self->instantiate;
		1831	}
		1832
		1833	sub load_header {
		1834	my ($self) = @_;
		1835
		1836	if ($self->load_header_temp) {
		1837	$self->prepare_temp;
748	} else {	1838	} else {
749	delete $COMMAND{$name};	1839	$self->load_header_orig
750	}	1840	or return;
		1841	$self->prepare_orig;
		1842	}
		1843
		1844	$self->{deny_reset} = 1
		1845	if $self->no_reset;
		1846
		1847	$self->default_region (cf::region::find_by_path $self->{path})
		1848	unless $self->default_region;
		1849
751	}	1850	1
		1851	}
752		1852
753	# remove extcmds	1853	sub find;
754	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1854	sub find {
755	delete $EXTCMD{$name};	1855	my ($path, $origin) = @_;
		1856
		1857	$path = normalise $path, $origin && $origin->path;
		1858
		1859	cf::lock_wait "map_find:$path";
		1860
		1861	$cf::MAP{$path} || do {
		1862	my $guard = cf::lock_acquire "map_find:$path";
		1863	my $map = new_from_path cf::map $path
		1864	or return;
		1865
		1866	$map->{last_save} = $cf::RUNTIME;
		1867
		1868	$map->load_header
		1869	or return;
		1870
		1871	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1872	# doing this can freeze the server in a sync job, obviously
		1873	#$cf::WAIT_FOR_TICK->wait;
		1874	$map->reset;
		1875	undef $guard;
		1876	return find $path;
		1877	}
		1878
		1879	$cf::MAP{$path} = $map
		1880	}
		1881	}
		1882
		1883	sub pre_load { }
		1884	sub post_load { }
		1885
		1886	sub load {
		1887	my ($self) = @_;
		1888
		1889	local $self->{deny_reset} = 1; # loading can take a long time
		1890
		1891	my $path = $self->{path};
		1892
756	}	1893	{
		1894	my $guard = cf::lock_acquire "map_load:$path";
757		1895
758	if (my $cb = $pkg->can ("unload")) {	1896	return if $self->in_memory != cf::MAP_SWAPPED;
759	eval {	1897
760	$cb->($pkg);	1898	$self->in_memory (cf::MAP_LOADING);
		1899
		1900	$self->alloc;
		1901
		1902	$self->pre_load;
		1903	Coro::cede;
		1904
		1905	$self->_load_objects ($self->{load_path}, 1)
		1906	or return;
		1907
		1908	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1909	if delete $self->{load_original};
		1910
		1911	if (my $uniq = $self->uniq_path) {
		1912	utf8::encode $uniq;
		1913	if (aio_open $uniq, O_RDONLY, 0) {
		1914	$self->clear_unique_items;
		1915	$self->_load_objects ($uniq, 0);
761	1	1916	}
762	} or warn "$pkg unloaded, but with errors: $@";	1917	}
763	}
764		1918
765	Symbol::delete_package $pkg;	1919	Coro::cede;
766	}	1920	# now do the right thing for maps
		1921	$self->link_multipart_objects;
		1922	$self->difficulty ($self->estimate_difficulty)
		1923	unless $self->difficulty;
		1924	Coro::cede;
767		1925
768	sub load_extensions {	1926	unless ($self->{deny_activate}) {
769	for my $ext (<$LIBDIR/*.ext>) {	1927	$self->decay_objects;
770	next unless -r $ext;	1928	$self->fix_auto_apply;
771	eval {	1929	$self->update_buttons;
772	load_extension $ext;	1930	Coro::cede;
773	1	1931	$self->set_darkness_map;
774	} or warn "$ext not loaded: $@";	1932	Coro::cede;
775	}	1933	$self->activate;
776	}	1934	}
777		1935
778	#############################################################################	1936	$self->{last_save} = $cf::RUNTIME;
779	# load/save/clean perl data associated with a map	1937	$self->last_access ($cf::RUNTIME);
780		1938
781	*cf::mapsupport::on_clean = sub {	1939	$self->in_memory (cf::MAP_IN_MEMORY);
		1940	}
		1941
		1942	$self->post_load;
		1943	}
		1944
		1945	sub customise_for {
		1946	my ($self, $ob) = @_;
		1947
		1948	return find "~" . $ob->name . "/" . $self->{path}
		1949	if $self->per_player;
		1950
		1951	# return find "?party/" . $ob->name . "/" . $self->{path}
		1952	# if $self->per_party;
		1953
		1954	$self
		1955	}
		1956
		1957	# find and load all maps in the 3x3 area around a map
		1958	sub load_diag {
782	my ($map) = @_;	1959	my ($map) = @_;
783		1960
784	my $path = $map->tmpname;	1961	my @diag; # diagonal neighbours
785	defined $path or return;
786		1962
787	unlink "$path.pst";	1963	for (0 .. 3) {
788	};	1964	my $neigh = $map->tile_path ($_)
		1965	or next;
		1966	$neigh = find $neigh, $map
		1967	or next;
		1968	$neigh->load;
789		1969
790	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1970	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1971	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1972	}
791		1973
792	#############################################################################	1974	for (@diag) {
793	# load/save perl data associated with player->ob objects	1975	my $neigh = find @$_
794		1976	or next;
795	sub all_objects(@) {	1977	$neigh->load;
796	@_, map all_objects ($_->inv), @_	1978	}
797	}	1979	}
798		1980
799	# TODO: compatibility cruft, remove when no longer needed	1981	sub find_sync {
800	cf::player->attach (	1982	my ($path, $origin) = @_;
801	on_load => sub {
802	my ($pl, $path) = @_;
803		1983
804	for my $o (all_objects $pl->ob) {	1984	cf::sync_job { find $path, $origin }
805	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1985	}
806	$o->set_ob_key_value ("_perl_data");
807		1986
808	%$o = %{ Storable::thaw pack "H*", $value };	1987	sub do_load_sync {
		1988	my ($map) = @_;
		1989
		1990	cf::sync_job { $map->load };
		1991	}
		1992
		1993	our %MAP_PREFETCH;
		1994	our $MAP_PREFETCHER = undef;
		1995
		1996	sub find_async {
		1997	my ($path, $origin) = @_;
		1998
		1999	$path = normalise $path, $origin && $origin->{path};
		2000
		2001	if (my $map = $cf::MAP{$path}) {
		2002	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		2003	}
		2004
		2005	undef $MAP_PREFETCH{$path};
		2006	$MAP_PREFETCHER ||= cf::async {
		2007	while (%MAP_PREFETCH) {
		2008	for my $path (keys %MAP_PREFETCH) {
		2009	if (my $map = find $path) {
		2010	$map->load;
		2011	}
		2012
		2013	delete $MAP_PREFETCH{$path};
809	}	2014	}
810	}	2015	}
		2016	undef $MAP_PREFETCHER;
		2017	};
		2018	$MAP_PREFETCHER->prio (6);
		2019
		2020	()
		2021	}
		2022
		2023	sub save {
		2024	my ($self) = @_;
		2025
		2026	my $lock = cf::lock_acquire "map_data:" . $self->path;
		2027
		2028	$self->{last_save} = $cf::RUNTIME;
		2029
		2030	return unless $self->dirty;
		2031
		2032	my $save = $self->save_path; utf8::encode $save;
		2033	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2034
		2035	$self->{load_path} = $save;
		2036
		2037	return if $self->{deny_save};
		2038
		2039	local $self->{last_access} = $self->last_access;#d#
		2040
		2041	cf::async {
		2042	$_->contr->save for $self->players;
		2043	};
		2044
		2045	if ($uniq) {
		2046	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2047	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2048	} else {
		2049	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
811	},	2050	}
812	);	2051	}
813		2052
814	#############################################################################	2053	sub swap_out {
		2054	my ($self) = @_;
815		2055
816	=head2 CORE EXTENSIONS	2056	# save first because save cedes
		2057	$self->save;
817		2058
818	Functions and methods that extend core crossfire objects.	2059	my $lock = cf::lock_acquire "map_data:" . $self->path;
819		2060
820	=head3 cf::player	2061	return if $self->players;
		2062	return if $self->in_memory != cf::MAP_IN_MEMORY;
		2063	return if $self->{deny_save};
		2064
		2065	$self->clear;
		2066	$self->in_memory (cf::MAP_SWAPPED);
		2067	}
		2068
		2069	sub reset_at {
		2070	my ($self) = @_;
		2071
		2072	# TODO: safety, remove and allow resettable per-player maps
		2073	return 1e99 if $self->{deny_reset};
		2074
		2075	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2076	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2077
		2078	$time + $to
		2079	}
		2080
		2081	sub should_reset {
		2082	my ($self) = @_;
		2083
		2084	$self->reset_at <= $cf::RUNTIME
		2085	}
		2086
		2087	sub reset {
		2088	my ($self) = @_;
		2089
		2090	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2091
		2092	return if $self->players;
		2093
		2094	warn "resetting map ", $self->path;
		2095
		2096	$self->in_memory (cf::MAP_SWAPPED);
		2097
		2098	# need to save uniques path
		2099	unless ($self->{deny_save}) {
		2100	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2101
		2102	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2103	if $uniq;
		2104	}
		2105
		2106	delete $cf::MAP{$self->path};
		2107
		2108	$self->clear;
		2109
		2110	$_->clear_links_to ($self) for values %cf::MAP;
		2111
		2112	$self->unlink_save;
		2113	$self->destroy;
		2114	}
		2115
		2116	my $nuke_counter = "aaaa";
		2117
		2118	sub nuke {
		2119	my ($self) = @_;
		2120
		2121	delete $cf::MAP{$self->path};
		2122
		2123	$self->unlink_save;
		2124
		2125	bless $self, "cf::map";
		2126	delete $self->{deny_reset};
		2127	$self->{deny_save} = 1;
		2128	$self->reset_timeout (1);
		2129	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2130
		2131	$cf::MAP{$self->path} = $self;
		2132
		2133	$self->reset; # polite request, might not happen
		2134	}
		2135
		2136	=item $maps = cf::map::tmp_maps
		2137
		2138	Returns an arrayref with all map paths of currently instantiated and saved
		2139	maps. May block.
		2140
		2141	=cut
		2142
		2143	sub tmp_maps() {
		2144	[
		2145	map {
		2146	utf8::decode $_;
		2147	/\.map$/
		2148	? normalise $_
		2149	: ()
		2150	} @{ aio_readdir $TMPDIR or [] }
		2151	]
		2152	}
		2153
		2154	=item $maps = cf::map::random_maps
		2155
		2156	Returns an arrayref with all map paths of currently instantiated and saved
		2157	random maps. May block.
		2158
		2159	=cut
		2160
		2161	sub random_maps() {
		2162	[
		2163	map {
		2164	utf8::decode $_;
		2165	/\.map$/
		2166	? normalise "?random/$_"
		2167	: ()
		2168	} @{ aio_readdir $RANDOMDIR or [] }
		2169	]
		2170	}
		2171
		2172	=item cf::map::unique_maps
		2173
		2174	Returns an arrayref of paths of all shared maps that have
		2175	instantiated unique items. May block.
		2176
		2177	=cut
		2178
		2179	sub unique_maps() {
		2180	[
		2181	map {
		2182	utf8::decode $_;
		2183	/\.map$/
		2184	? normalise $_
		2185	: ()
		2186	} @{ aio_readdir $UNIQUEDIR or [] }
		2187	]
		2188	}
		2189
		2190	package cf;
		2191
		2192	=back
		2193
		2194	=head3 cf::object
		2195
		2196	=cut
		2197
		2198	package cf::object;
821		2199
822	=over 4	2200	=over 4
823		2201
824	=item cf::player::exists $login	2202	=item $ob->inv_recursive
825		2203
826	Returns true when the given account exists.	2204	Returns the inventory of the object _and_ their inventories, recursively.
827		2205
828	=cut	2206	=cut
829		2207
830	sub cf::player::exists($) {	2208	sub inv_recursive_;
831	cf::player::find $_[0]	2209	sub inv_recursive_ {
832	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2210	map { $_, inv_recursive_ $_->inv } @_
833	}	2211	}
834		2212
835	=item $player->ext_reply ($msgid, $msgtype, %msg)	2213	sub inv_recursive {
836		2214	inv_recursive_ inv $_[0]
837	Sends an ext reply to the player.
838
839	=cut
840
841	sub cf::player::ext_reply($$$%) {
842	my ($self, $id, %msg) = @_;
843
844	$msg{msgid} = $id;
845
846	$self->send ("ext " . to_json \%msg);
847	}	2215	}
		2216
		2217	package cf;
848		2218
849	=back	2219	=back
850		2220
851	=head3 cf::object::player	2221	=head3 cf::object::player
852		2222
…		…
868		2238
869	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2239	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
870		2240
871	if ($self->{record_replies}) {	2241	if ($self->{record_replies}) {
872	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2242	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2243
873	} else {	2244	} else {
		2245	my $pl = $self->contr;
		2246
		2247	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2248	my $dialog = $pl->{npc_dialog};
		2249	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2250
		2251	} else {
874	$msg = $npc->name . " says: $msg" if $npc;	2252	$msg = $npc->name . " says: $msg" if $npc;
875	$self->message ($msg, $flags);	2253	$self->message ($msg, $flags);
		2254	}
876	}	2255	}
		2256	}
		2257
		2258	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2259
		2260	=cut
		2261
		2262	sub cf::object::send_msg {
		2263	my $pl = shift->contr
		2264	or return;
		2265	$pl->send_msg (@_);
877	}	2266	}
878		2267
879	=item $player_object->may ("access")	2268	=item $player_object->may ("access")
880		2269
881	Returns wether the given player is authorized to access resource "access"	2270	Returns wether the given player is authorized to access resource "access"
…		…
890	(ref $cf::CFG{"may_$access"}	2279	(ref $cf::CFG{"may_$access"}
891	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2280	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
892	: $cf::CFG{"may_$access"})	2281	: $cf::CFG{"may_$access"})
893	}	2282	}
894		2283
		2284	=item $player_object->enter_link
		2285
		2286	Freezes the player and moves him/her to a special map (C<{link}>).
		2287
		2288	The player should be reasonably safe there for short amounts of time. You
		2289	I<MUST> call C<leave_link> as soon as possible, though.
		2290
		2291	Will never block.
		2292
		2293	=item $player_object->leave_link ($map, $x, $y)
		2294
		2295	Moves the player out of the special C<{link}> map onto the specified
		2296	map. If the map is not valid (or omitted), the player will be moved back
		2297	to the location he/she was before the call to C<enter_link>, or, if that
		2298	fails, to the emergency map position.
		2299
		2300	Might block.
		2301
		2302	=cut
		2303
		2304	sub link_map {
		2305	unless ($LINK_MAP) {
		2306	$LINK_MAP = cf::map::find "{link}"
		2307	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2308	$LINK_MAP->load;
		2309	}
		2310
		2311	$LINK_MAP
		2312	}
		2313
		2314	sub cf::object::player::enter_link {
		2315	my ($self) = @_;
		2316
		2317	$self->deactivate_recursive;
		2318
		2319	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2320
		2321	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2322	if $self->map && $self->map->{path} ne "{link}";
		2323
		2324	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2325	}
		2326
		2327	sub cf::object::player::leave_link {
		2328	my ($self, $map, $x, $y) = @_;
		2329
		2330	return unless $self->contr->active;
		2331
		2332	my $link_pos = delete $self->{_link_pos};
		2333
		2334	unless ($map) {
		2335	# restore original map position
		2336	($map, $x, $y) = @{ $link_pos || [] };
		2337	$map = cf::map::find $map;
		2338
		2339	unless ($map) {
		2340	($map, $x, $y) = @$EMERGENCY_POSITION;
		2341	$map = cf::map::find $map
		2342	or die "FATAL: cannot load emergency map\n";
		2343	}
		2344	}
		2345
		2346	($x, $y) = (-1, -1)
		2347	unless (defined $x) && (defined $y);
		2348
		2349	# use -1 or undef as default coordinates, not 0, 0
		2350	($x, $y) = ($map->enter_x, $map->enter_y)
		2351	if $x <=0 && $y <= 0;
		2352
		2353	$map->load;
		2354	$map->load_diag;
		2355
		2356	return unless $self->contr->active;
		2357	$self->activate_recursive;
		2358
		2359	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2360	$self->enter_map ($map, $x, $y);
		2361	}
		2362
		2363	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
		2364
		2365	Moves the player to the given map-path and coordinates by first freezing
		2366	her, loading and preparing them map, calling the provided $check callback
		2367	that has to return the map if sucecssful, and then unfreezes the player on
		2368	the new (success) or old (failed) map position. In either case, $done will
		2369	be called at the end of this process.
		2370
		2371	=cut
		2372
		2373	our $GOTOGEN;
		2374
		2375	sub cf::object::player::goto {
		2376	my ($self, $path, $x, $y, $check, $done) = @_;
		2377
		2378	# do generation counting so two concurrent goto's will be executed in-order
		2379	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2380
		2381	$self->enter_link;
		2382
		2383	(async {
		2384	my $map = eval {
		2385	my $map = cf::map::find $path;
		2386
		2387	if ($map) {
		2388	$map = $map->customise_for ($self);
		2389	$map = $check->($map) if $check && $map;
		2390	} else {
		2391	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2392	}
		2393
		2394	$map
		2395	};
		2396
		2397	if ($@) {
		2398	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2399	LOG llevError | logBacktrace, Carp::longmess $@;
		2400	}
		2401
		2402	if ($gen == $self->{_goto_generation}) {
		2403	delete $self->{_goto_generation};
		2404	$self->leave_link ($map, $x, $y);
		2405	}
		2406
		2407	$done->() if $done;
		2408	})->prio (1);
		2409	}
		2410
		2411	=item $player_object->enter_exit ($exit_object)
		2412
		2413	=cut
		2414
		2415	sub parse_random_map_params {
		2416	my ($spec) = @_;
		2417
		2418	my $rmp = { # defaults
		2419	xsize => (cf::rndm 15, 40),
		2420	ysize => (cf::rndm 15, 40),
		2421	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2422	#layout => string,
		2423	};
		2424
		2425	for (split /\n/, $spec) {
		2426	my ($k, $v) = split /\s+/, $_, 2;
		2427
		2428	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2429	}
		2430
		2431	$rmp
		2432	}
		2433
		2434	sub prepare_random_map {
		2435	my ($exit) = @_;
		2436
		2437	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2438
		2439	# all this does is basically replace the /! path by
		2440	# a new random map path (?random/...) with a seed
		2441	# that depends on the exit object
		2442
		2443	my $rmp = parse_random_map_params $exit->msg;
		2444
		2445	if ($exit->map) {
		2446	$rmp->{region} = $exit->region->name;
		2447	$rmp->{origin_map} = $exit->map->path;
		2448	$rmp->{origin_x} = $exit->x;
		2449	$rmp->{origin_y} = $exit->y;
		2450	}
		2451
		2452	$rmp->{random_seed} ||= $exit->random_seed;
		2453
		2454	my $data = cf::to_json $rmp;
		2455	my $md5 = Digest::MD5::md5_hex $data;
		2456	my $meta = "$RANDOMDIR/$md5.meta";
		2457
		2458	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2459	aio_write $fh, 0, (length $data), $data, 0;
		2460	undef $fh;
		2461	aio_rename "$meta~", $meta;
		2462
		2463	$exit->slaying ("?random/$md5");
		2464	$exit->msg (undef);
		2465	}
		2466	}
		2467
		2468	sub cf::object::player::enter_exit {
		2469	my ($self, $exit) = @_;
		2470
		2471	return unless $self->type == cf::PLAYER;
		2472
		2473	if ($exit->slaying eq "/!") {
		2474	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2475	# the problem is that $exit might not survive long enough
		2476	# so it needs to be done right now, right here
		2477	cf::sync_job { prepare_random_map $exit };
		2478	}
		2479
		2480	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2481	my $hp = $exit->stats->hp;
		2482	my $sp = $exit->stats->sp;
		2483
		2484	$self->enter_link;
		2485
		2486	# if exit is damned, update players death & WoR home-position
		2487	$self->contr->savebed ($slaying, $hp, $sp)
		2488	if $exit->flag (FLAG_DAMNED);
		2489
		2490	(async {
		2491	$self->deactivate_recursive; # just to be sure
		2492	unless (eval {
		2493	$self->goto ($slaying, $hp, $sp);
		2494
		2495	1;
		2496	}) {
		2497	$self->message ("Something went wrong deep within the crossfire server. "
		2498	. "I'll try to bring you back to the map you were before. "
		2499	. "Please report this to the dungeon master!",
		2500	cf::NDI_UNIQUE | cf::NDI_RED);
		2501
		2502	warn "ERROR in enter_exit: $@";
		2503	$self->leave_link;
		2504	}
		2505	})->prio (1);
		2506	}
		2507
895	=head3 cf::client	2508	=head3 cf::client
896		2509
897	=over 4	2510	=over 4
898		2511
899	=item $client->send_drawinfo ($text, $flags)	2512	=item $client->send_drawinfo ($text, $flags)
…		…
905		2518
906	sub cf::client::send_drawinfo {	2519	sub cf::client::send_drawinfo {
907	my ($self, $text, $flags) = @_;	2520	my ($self, $text, $flags) = @_;
908		2521
909	utf8::encode $text;	2522	utf8::encode $text;
910	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2523	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
911	}	2524	}
912		2525
		2526	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2527
		2528	Send a drawinfo or msg packet to the client, formatting the msg for the
		2529	client if neccessary. C<$type> should be a string identifying the type of
		2530	the message, with C<log> being the default. If C<$color> is negative, suppress
		2531	the message unless the client supports the msg packet.
		2532
		2533	=cut
		2534
		2535	sub cf::client::send_msg {
		2536	my ($self, $channel, $msg, $color, @extra) = @_;
		2537
		2538	$msg = $self->pl->expand_cfpod ($msg);
		2539
		2540	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2541
		2542	if (ref $channel) {
		2543	# send meta info to client, if not yet sent
		2544	unless (exists $self->{channel}{$channel->{id}}) {
		2545	$self->{channel}{$channel->{id}} = $channel;
		2546	$self->ext_msg (channel_info => $channel);
		2547	}
		2548
		2549	$channel = $channel->{id};
		2550	}
		2551
		2552	return unless @extra || length $msg;
		2553
		2554	if ($self->can_msg) {
		2555	# default colour, mask it out
		2556	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2557	if $color & cf::NDI_DEF;
		2558
		2559	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2560	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2561	} else {
		2562	if ($color >= 0) {
		2563	# replace some tags by gcfclient-compatible ones
		2564	for ($msg) {
		2565	1 while
		2566	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2567	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2568	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2569	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2570	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2571	}
		2572
		2573	$color &= cf::NDI_COLOR_MASK;
		2574
		2575	utf8::encode $msg;
		2576
		2577	if (0 && $msg =~ /\[/) {
		2578	# COMMAND/INFO
		2579	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2580	} else {
		2581	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2582	$self->send_packet ("drawinfo $color $msg")
		2583	}
		2584	}
		2585	}
		2586	}
		2587
		2588	=item $client->ext_msg ($type, @msg)
		2589
		2590	Sends an ext event to the client.
		2591
		2592	=cut
		2593
		2594	sub cf::client::ext_msg($$@) {
		2595	my ($self, $type, @msg) = @_;
		2596
		2597	my $extcmd = $self->extcmd;
		2598
		2599	if ($extcmd == 2) {
		2600	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2601	} elsif ($extcmd == 1) { # TODO: remove
		2602	push @msg, msgtype => "event_$type";
		2603	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2604	}
		2605	}
913		2606
914	=item $success = $client->query ($flags, "text", \&cb)	2607	=item $success = $client->query ($flags, "text", \&cb)
915		2608
916	Queues a query to the client, calling the given callback with	2609	Queues a query to the client, calling the given callback with
917	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2610	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
918	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2611	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
919		2612
920	Queries can fail, so check the return code. Or don't, as queries will become	2613	Queries can fail, so check the return code. Or don't, as queries will
921	reliable at some point in the future.	2614	become reliable at some point in the future.
922		2615
923	=cut	2616	=cut
924		2617
925	sub cf::client::query {	2618	sub cf::client::query {
926	my ($self, $flags, $text, $cb) = @_;	2619	my ($self, $flags, $text, $cb) = @_;
…		…
934	utf8::encode $text;	2627	utf8::encode $text;
935	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2628	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
936		2629
937	$self->send_packet ($self->{query_queue}[0][0])	2630	$self->send_packet ($self->{query_queue}[0][0])
938	if @{ $self->{query_queue} } == 1;	2631	if @{ $self->{query_queue} } == 1;
		2632
		2633	1
939	}	2634	}
940		2635
941	cf::client->attach (	2636	cf::client->attach (
		2637	on_connect => sub {
		2638	my ($ns) = @_;
		2639
		2640	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2641	},
942	on_reply => sub {	2642	on_reply => sub {
943	my ($ns, $msg) = @_;	2643	my ($ns, $msg) = @_;
944		2644
945	# this weird shuffling is so that direct followup queries	2645	# this weird shuffling is so that direct followup queries
946	# get handled first	2646	# get handled first
947	my $queue = delete $ns->{query_queue};	2647	my $queue = delete $ns->{query_queue}
		2648	or return; # be conservative, not sure how that can happen, but we saw a crash here
948		2649
949	(shift @$queue)->[1]->($msg);	2650	(shift @$queue)->[1]->($msg);
		2651	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
950		2652
951	push @{ $ns->{query_queue} }, @$queue;	2653	push @{ $ns->{query_queue} }, @$queue;
952		2654
953	if (@{ $ns->{query_queue} } == @$queue) {	2655	if (@{ $ns->{query_queue} } == @$queue) {
954	if (@$queue) {	2656	if (@$queue) {
…		…
956	} else {	2658	} else {
957	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2659	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
958	}	2660	}
959	}	2661	}
960	},	2662	},
		2663	on_exticmd => sub {
		2664	my ($ns, $buf) = @_;
		2665
		2666	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2667
		2668	if (ref $msg) {
		2669	my ($type, $reply, @payload) =
		2670	"ARRAY" eq ref $msg
		2671	? @$msg
		2672	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2673
		2674	if (my $cb = $EXTICMD{$type}) {
		2675	my @reply = $cb->($ns, @payload);
		2676
		2677	$ns->ext_reply ($reply, @reply)
		2678	if $reply;
		2679	}
		2680	} else {
		2681	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2682	}
		2683
		2684	cf::override;
		2685	},
961	);	2686	);
962		2687
963	=item $client->coro (\&cb)	2688	=item $client->async (\&cb)
964		2689
965	Create a new coroutine, running the specified callback. The coroutine will	2690	Create a new coroutine, running the specified callback. The coroutine will
966	be automatically cancelled when the client gets destroyed (e.g. on logout,	2691	be automatically cancelled when the client gets destroyed (e.g. on logout,
967	or loss of connection).	2692	or loss of connection).
968		2693
969	=cut	2694	=cut
970		2695
971	sub cf::client::coro {	2696	sub cf::client::async {
972	my ($self, $cb) = @_;	2697	my ($self, $cb) = @_;
973		2698
974	my $coro; $coro = async {	2699	my $coro = &Coro::async ($cb);
975	eval {
976	$cb->();
977	};
978	warn $@ if $@;
979	};
980		2700
981	$coro->on_destroy (sub {	2701	$coro->on_destroy (sub {
982	delete $self->{_coro}{$coro+0};	2702	delete $self->{_coro}{$coro+0};
983	});	2703	});
984		2704
…		…
1011	our $safe = new Safe "safe";	2731	our $safe = new Safe "safe";
1012	our $safe_hole = new Safe::Hole;	2732	our $safe_hole = new Safe::Hole;
1013		2733
1014	$SIG{FPE} = 'IGNORE';	2734	$SIG{FPE} = 'IGNORE';
1015		2735
1016	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2736	$safe->permit_only (Opcode::opset qw(
		2737	:base_core :base_mem :base_orig :base_math
		2738	grepstart grepwhile mapstart mapwhile
		2739	sort time
		2740	));
1017		2741
1018	# here we export the classes and methods available to script code	2742	# here we export the classes and methods available to script code
1019		2743
1020	=pod	2744	=pod
1021		2745
1022	The following fucntions and emthods are available within a safe environment:	2746	The following functions and methods are available within a safe environment:
1023		2747
1024	cf::object contr pay_amount pay_player map	2748	cf::object
		2749	contr pay_amount pay_player map x y force_find force_add
		2750	insert remove name archname title slaying race
		2751
1025	cf::object::player player	2752	cf::object::player
1026	cf::player peaceful	2753	player
1027	cf::map trigger	2754
		2755	cf::player
		2756	peaceful
		2757
		2758	cf::map
		2759	trigger
1028		2760
1029	=cut	2761	=cut
1030		2762
1031	for (	2763	for (
1032	["cf::object" => qw(contr pay_amount pay_player map)],	2764	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2765	insert remove inv name archname title slaying race)],
1033	["cf::object::player" => qw(player)],	2766	["cf::object::player" => qw(player)],
1034	["cf::player" => qw(peaceful)],	2767	["cf::player" => qw(peaceful)],
1035	["cf::map" => qw(trigger)],	2768	["cf::map" => qw(trigger)],
1036	) {	2769	) {
1037	no strict 'refs';	2770	no strict 'refs';
…		…
1108	=back	2841	=back
1109		2842
1110	=cut	2843	=cut
1111		2844
1112	#############################################################################	2845	#############################################################################
		2846	# the server's init and main functions
1113		2847
1114	=head2 EXTENSION DATABASE SUPPORT	2848	sub load_facedata($) {
		2849	my ($path) = @_;
1115		2850
1116	Crossfire maintains a very simple database for extension use. It can	2851	warn "loading facedata from $path\n";
1117	currently store anything that can be serialised using Storable, which
1118	excludes objects.
1119		2852
1120	The parameter C<$family> should best start with the name of the extension	2853	my $facedata;
1121	using it, it should be unique.	2854	0 < aio_load $path, $facedata
		2855	or die "$path: $!";
1122		2856
1123	=over 4	2857	$facedata = Coro::Storable::thaw $facedata;
1124		2858
1125	=item $hashref = cf::db_get $family	2859	$facedata->{version} == 2
		2860	or cf::cleanup "$path: version mismatch, cannot proceed.";
1126		2861
1127	Return a hashref for use by the extension C<$family>, which can be
1128	modified. After modifications, you have to call C<cf::db_dirty> or
1129	C<cf::db_sync>.
1130
1131	=item $value = cf::db_get $family => $key
1132
1133	Returns a single value from the database
1134
1135	=item cf::db_put $family => $hashref
1136
1137	Stores the given family hashref into the database. Updates are delayed, if
1138	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1139
1140	=item cf::db_put $family => $key => $value
1141
1142	Stores the given C<$value> in the family hash. Updates are delayed, if you
1143	want the data to be synced to disk immediately, use C<cf::db_sync>.
1144
1145	=item cf::db_dirty
1146
1147	Marks the database as dirty, to be updated at a later time.
1148
1149	=item cf::db_sync
1150
1151	Immediately write the database to disk I<if it is dirty>.
1152
1153	=cut
1154
1155	our $DB;
1156
1157	{
1158	my $path = cf::localdir . "/database.pst";
1159
1160	sub db_load() {
1161	warn "loading database $path\n";#d# remove later
1162	$DB = stat $path ? Storable::retrieve $path : { };
1163	}	2862	{
		2863	my $faces = $facedata->{faceinfo};
1164		2864
1165	my $pid;	2865	while (my ($face, $info) = each %$faces) {
		2866	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2867	cf::face::set_visibility $idx, $info->{visibility};
		2868	cf::face::set_magicmap $idx, $info->{magicmap};
		2869	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2870	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1166		2871
1167	sub db_save() {	2872	cf::cede_to_tick;
1168	warn "saving database $path\n";#d# remove later
1169	waitpid $pid, 0 if $pid;
1170	if (0 == ($pid = fork)) {
1171	$DB->{_meta}{version} = 1;
1172	Storable::nstore $DB, "$path~";
1173	rename "$path~", $path;
1174	cf::_exit 0 if defined $pid;
1175	}
1176	}
1177
1178	my $dirty;
1179
1180	sub db_sync() {
1181	db_save if $dirty;
1182	undef $dirty;
1183	}
1184
1185	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1186	db_sync;
1187	});
1188
1189	sub db_dirty() {
1190	$dirty = 1;
1191	$idle->start;
1192	}
1193
1194	sub db_get($;$) {
1195	@_ >= 2
1196	? $DB->{$_[0]}{$_[1]}
1197	: ($DB->{$_[0]} ||= { })
1198	}
1199
1200	sub db_put($$;$) {
1201	if (@_ >= 3) {
1202	$DB->{$_[0]}{$_[1]} = $_[2];
1203	} else {
1204	$DB->{$_[0]} = $_[1];
1205	}
1206	db_dirty;
1207	}
1208
1209	cf::global->attach (
1210	prio => 10000,
1211	on_cleanup => sub {
1212	db_sync;
1213	},	2873	}
1214	);
1215	}
1216		2874
1217	#############################################################################	2875	while (my ($face, $info) = each %$faces) {
1218	# the server's main()	2876	next unless $info->{smooth};
		2877	my $idx = cf::face::find $face
		2878	or next;
		2879	if (my $smooth = cf::face::find $info->{smooth}) {
		2880	cf::face::set_smooth $idx, $smooth;
		2881	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2882	} else {
		2883	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2884	}
		2885
		2886	cf::cede_to_tick;
		2887	}
		2888	}
		2889
		2890	{
		2891	my $anims = $facedata->{animinfo};
		2892
		2893	while (my ($anim, $info) = each %$anims) {
		2894	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2895	cf::cede_to_tick;
		2896	}
		2897
		2898	cf::anim::invalidate_all; # d'oh
		2899	}
		2900
		2901	{
		2902	# TODO: for gcfclient pleasure, we should give resources
		2903	# that gcfclient doesn't grok a >10000 face index.
		2904	my $res = $facedata->{resource};
		2905	my $enc = JSON::XS->new->utf8->canonical;
		2906
		2907	my $soundconf = delete $res->{"res/sound.conf"};
		2908
		2909	while (my ($name, $info) = each %$res) {
		2910	my $meta = $enc->encode ({
		2911	name => $name,
		2912	%{ $info->{meta} || {} },
		2913	});
		2914
		2915	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2916
		2917	if ($info->{type} & 1) {
		2918	# prepend meta info
		2919
		2920	my $data = pack "(w/a*)*", $meta, $info->{data};
		2921	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2922
		2923	cf::face::set_data $idx, 0, $data, $chk;
		2924	} else {
		2925	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};
		2926	}
		2927
		2928	cf::face::set_type $idx, $info->{type};
		2929
		2930	cf::cede_to_tick;
		2931	}
		2932
		2933	if ($soundconf) {
		2934	$soundconf = $enc->decode (delete $soundconf->{data});
		2935
		2936	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2937	my $sound = $soundconf->{compat}[$_]
		2938	or next;
		2939
		2940	my $face = cf::face::find "sound/$sound->[1]";
		2941	cf::sound::set $sound->[0] => $face;
		2942	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2943	}
		2944
		2945	while (my ($k, $v) = each %{$soundconf->{event}}) {
		2946	my $face = cf::face::find "sound/$v";
		2947	cf::sound::set $k => $face;
		2948	}
		2949	}
		2950	}
		2951
		2952	1
		2953	}
		2954
		2955	register_exticmd fx_want => sub {
		2956	my ($ns, $want) = @_;
		2957
		2958	while (my ($k, $v) = each %$want) {
		2959	$ns->fx_want ($k, $v);
		2960	}
		2961	};
		2962
		2963	sub reload_regions {
		2964	load_resource_file "$MAPDIR/regions"
		2965	or die "unable to load regions file\n";
		2966
		2967	for (cf::region::list) {
		2968	$_->{match} = qr/$_->{match}/
		2969	if exists $_->{match};
		2970	}
		2971	}
		2972
		2973	sub reload_facedata {
		2974	load_facedata "$DATADIR/facedata"
		2975	or die "unable to load facedata\n";
		2976	}
		2977
		2978	sub reload_archetypes {
		2979	load_resource_file "$DATADIR/archetypes"
		2980	or die "unable to load archetypes\n";
		2981	#d# NEED to laod twice to resolve forward references
		2982	# this really needs to be done in an extra post-pass
		2983	# (which needs to be synchronous, so solve it differently)
		2984	load_resource_file "$DATADIR/archetypes"
		2985	or die "unable to load archetypes\n";
		2986	}
		2987
		2988	sub reload_treasures {
		2989	load_resource_file "$DATADIR/treasures"
		2990	or die "unable to load treasurelists\n";
		2991	}
		2992
		2993	sub reload_resources {
		2994	warn "reloading resource files...\n";
		2995
		2996	reload_regions;
		2997	reload_facedata;
		2998	#reload_archetypes;#d#
		2999	reload_archetypes;
		3000	reload_treasures;
		3001
		3002	warn "finished reloading resource files\n";
		3003	}
		3004
		3005	sub init {
		3006	reload_resources;
		3007	}
1219		3008
1220	sub cfg_load {	3009	sub cfg_load {
1221	open my $fh, "<:utf8", cf::confdir . "/config"	3010	open my $fh, "<:utf8", "$CONFDIR/config"
1222	or return;	3011	or return;
1223		3012
1224	local $/;	3013	local $/;
1225	*CFG = YAML::Syck::Load <$fh>;	3014	*CFG = YAML::Syck::Load <$fh>;
		3015
		3016	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3017
		3018	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3019	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3020
		3021	if (exists $CFG{mlockall}) {
		3022	eval {
		3023	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3024	and die "WARNING: m(un)lockall failed: $!\n";
		3025	};
		3026	warn $@ if $@;
		3027	}
1226	}	3028	}
1227		3029
1228	sub main {	3030	sub main {
		3031	# we must not ever block the main coroutine
		3032	local $Coro::idle = sub {
		3033	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3034	(async {
		3035	Event::one_event;
		3036	})->prio (Coro::PRIO_MAX);
		3037	};
		3038
1229	cfg_load;	3039	cfg_load;
1230	db_load;	3040	db_init;
1231	load_extensions;	3041	load_extensions;
		3042
		3043	$TICK_WATCHER->start;
1232	Event::loop;	3044	Event::loop;
1233	}	3045	}
1234		3046
1235	#############################################################################	3047	#############################################################################
1236	# initialisation	3048	# initialisation and cleanup
1237		3049
1238	sub _perl_reload() {	3050	# install some emergency cleanup handlers
		3051	BEGIN {
		3052	for my $signal (qw(INT HUP TERM)) {
		3053	Event->signal (
		3054	reentrant => 0,
		3055	data => WF_AUTOCANCEL,
		3056	signal => $signal,
		3057	prio => 0,
		3058	cb => sub {
		3059	cf::cleanup "SIG$signal";
		3060	},
		3061	);
		3062	}
		3063	}
		3064
		3065	sub write_runtime {
		3066	my $runtime = "$LOCALDIR/runtime";
		3067
		3068	# first touch the runtime file to show we are still running:
		3069	# the fsync below can take a very very long time.
		3070
		3071	IO::AIO::aio_utime $runtime, undef, undef;
		3072
		3073	my $guard = cf::lock_acquire "write_runtime";
		3074
		3075	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3076	or return;
		3077
		3078	my $value = $cf::RUNTIME + 90 + 10;
		3079	# 10 is the runtime save interval, for a monotonic clock
		3080	# 60 allows for the watchdog to kill the server.
		3081
		3082	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3083	and return;
		3084
		3085	# always fsync - this file is important
		3086	aio_fsync $fh
		3087	and return;
		3088
		3089	# touch it again to show we are up-to-date
		3090	aio_utime $fh, undef, undef;
		3091
		3092	close $fh
		3093	or return;
		3094
		3095	aio_rename "$runtime~", $runtime
		3096	and return;
		3097
		3098	warn "runtime file written.\n";
		3099
		3100	1
		3101	}
		3102
		3103	sub emergency_save() {
		3104	my $freeze_guard = cf::freeze_mainloop;
		3105
		3106	warn "enter emergency perl save\n";
		3107
		3108	cf::sync_job {
		3109	# use a peculiar iteration method to avoid tripping on perl
		3110	# refcount bugs in for. also avoids problems with players
		3111	# and maps saved/destroyed asynchronously.
		3112	warn "begin emergency player save\n";
		3113	for my $login (keys %cf::PLAYER) {
		3114	my $pl = $cf::PLAYER{$login} or next;
		3115	$pl->valid or next;
		3116	$pl->save;
		3117	}
		3118	warn "end emergency player save\n";
		3119
		3120	warn "begin emergency map save\n";
		3121	for my $path (keys %cf::MAP) {
		3122	my $map = $cf::MAP{$path} or next;
		3123	$map->valid or next;
		3124	$map->save;
		3125	}
		3126	warn "end emergency map save\n";
		3127
		3128	warn "begin emergency database checkpoint\n";
		3129	BDB::db_env_txn_checkpoint $DB_ENV;
		3130	warn "end emergency database checkpoint\n";
		3131	};
		3132
		3133	warn "leave emergency perl save\n";
		3134	}
		3135
		3136	sub post_cleanup {
		3137	my ($make_core) = @_;
		3138
		3139	warn Carp::longmess "post_cleanup backtrace"
		3140	if $make_core;
		3141	}
		3142
		3143	sub do_reload_perl() {
		3144	# can/must only be called in main
		3145	if ($Coro::current != $Coro::main) {
		3146	warn "can only reload from main coroutine";
		3147	return;
		3148	}
		3149
1239	warn "reloading...";	3150	warn "reloading...";
1240		3151
1241	eval {	3152	warn "entering sync_job";
1242	local $FREEZE = 1;
1243		3153
		3154	cf::sync_job {
		3155	cf::write_runtime; # external watchdog should not bark
1244	cf::emergency_save;	3156	cf::emergency_save;
		3157	cf::write_runtime; # external watchdog should not bark
1245		3158
1246	# cancel all watchers	3159	warn "syncing database to disk";
		3160	BDB::db_env_txn_checkpoint $DB_ENV;
		3161
		3162	# if anything goes wrong in here, we should simply crash as we already saved
		3163
		3164	warn "cancelling all WF_AUTOCANCEL watchers";
1247	for (Event::all_watchers) {	3165	for (Event::all_watchers) {
1248	$_->cancel if $_->data & WF_AUTOCANCEL;	3166	$_->cancel if $_->data & WF_AUTOCANCEL;
1249	}	3167	}
1250		3168
		3169	warn "flushing outstanding aio requests";
		3170	for (;;) {
		3171	BDB::flush;
		3172	IO::AIO::flush;
		3173	Coro::cede;
		3174	last unless IO::AIO::nreqs || BDB::nreqs;
		3175	warn "iterate...";
		3176	}
		3177
		3178	++$RELOAD;
		3179
1251	# cancel all extension coros	3180	warn "cancelling all extension coros";
1252	$_->cancel for values %EXT_CORO;	3181	$_->cancel for values %EXT_CORO;
1253	%EXT_CORO = ();	3182	%EXT_CORO = ();
1254		3183
1255	# unload all extensions	3184	warn "removing commands";
1256	for (@exts) {	3185	%COMMAND = ();
		3186
		3187	warn "removing ext/exti commands";
		3188	%EXTCMD = ();
		3189	%EXTICMD = ();
		3190
		3191	warn "unloading/nuking all extensions";
		3192	for my $pkg (@EXTS) {
1257	warn "unloading <$_>";	3193	warn "... unloading $pkg";
1258	unload_extension $_;	3194
		3195	if (my $cb = $pkg->can ("unload")) {
		3196	eval {
		3197	$cb->($pkg);
		3198	1
		3199	} or warn "$pkg unloaded, but with errors: $@";
1259	}	3200	}
1260		3201
		3202	warn "... nuking $pkg";
		3203	Symbol::delete_package $pkg;
		3204	}
		3205
1261	# unload all modules loaded from $LIBDIR	3206	warn "unloading all perl modules loaded from $LIBDIR";
1262	while (my ($k, $v) = each %INC) {	3207	while (my ($k, $v) = each %INC) {
1263	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3208	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1264		3209
1265	warn "removing <$k>";	3210	warn "... unloading $k";
1266	delete $INC{$k};	3211	delete $INC{$k};
1267		3212
1268	$k =~ s/\.pm$//;	3213	$k =~ s/\.pm$//;
1269	$k =~ s/\//::/g;	3214	$k =~ s/\//::/g;
1270		3215
…		…
1273	}	3218	}
1274		3219
1275	Symbol::delete_package $k;	3220	Symbol::delete_package $k;
1276	}	3221	}
1277		3222
1278	# sync database to disk
1279	cf::db_sync;
1280	IO::AIO::flush;
1281
1282	# get rid of safe::, as good as possible	3223	warn "getting rid of safe::, as good as possible";
1283	Symbol::delete_package "safe::$_"	3224	Symbol::delete_package "safe::$_"
1284	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3225	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1285		3226
1286	# remove register_script_function callbacks
1287	# TODO
1288
1289	# unload cf.pm "a bit"	3227	warn "unloading cf.pm \"a bit\"";
1290	delete $INC{"cf.pm"};	3228	delete $INC{"cf.pm"};
		3229	delete $INC{"cf/pod.pm"};
1291		3230
1292	# don't, removes xs symbols, too,	3231	# don't, removes xs symbols, too,
1293	# and global variables created in xs	3232	# and global variables created in xs
1294	#Symbol::delete_package __PACKAGE__;	3233	#Symbol::delete_package __PACKAGE__;
1295		3234
1296	# reload cf.pm	3235	warn "unload completed, starting to reload now";
		3236
1297	warn "reloading cf.pm";	3237	warn "reloading cf.pm";
1298	require cf;	3238	require cf;
1299	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3239	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1300		3240
1301	# load config and database again	3241	warn "loading config and database again";
1302	cf::cfg_load;	3242	cf::cfg_load;
1303	cf::db_load;
1304		3243
1305	# load extensions
1306	warn "load extensions";	3244	warn "loading extensions";
1307	cf::load_extensions;	3245	cf::load_extensions;
1308		3246
1309	# reattach attachments to objects	3247	warn "reattaching attachments to objects/players";
1310	warn "reattach";	3248	_global_reattach; # objects, sockets
1311	_global_reattach;	3249	warn "reattaching attachments to maps";
		3250	reattach $_ for values %MAP;
		3251	warn "reattaching attachments to players";
		3252	reattach $_ for values %PLAYER;
		3253
		3254	warn "leaving sync_job";
		3255
		3256	1
		3257	} or do {
		3258	warn $@;
		3259	warn "error while reloading, exiting.";
		3260	exit 1;
1312	};	3261	};
1313	warn $@ if $@;
1314		3262
1315	warn "reloaded";	3263	warn "reloaded";
1316	};	3264	};
1317		3265
1318	sub perl_reload() {	3266	our $RELOAD_WATCHER; # used only during reload
1319	_perl_reload;
1320	}
1321		3267
1322	register "<global>", __PACKAGE__;	3268	sub reload_perl() {
		3269	# doing reload synchronously and two reloads happen back-to-back,
		3270	# coro crashes during coro_state_free->destroy here.
1323		3271
		3272	$RELOAD_WATCHER ||= Event->timer (
		3273	reentrant => 0,
		3274	after => 0,
		3275	data => WF_AUTOCANCEL,
		3276	cb => sub {
		3277	do_reload_perl;
		3278	undef $RELOAD_WATCHER;
		3279	},
		3280	);
		3281	}
		3282
1324	register_command "perl-reload" => sub {	3283	register_command "reload" => sub {
1325	my ($who, $arg) = @_;	3284	my ($who, $arg) = @_;
1326		3285
1327	if ($who->flag (FLAG_WIZ)) {	3286	if ($who->flag (FLAG_WIZ)) {
1328	$who->message ("reloading...");	3287	$who->message ("reloading server.");
1329	_perl_reload;	3288	async { reload_perl };
1330	}	3289	}
1331	};	3290	};
1332		3291
1333	unshift @INC, $LIBDIR;	3292	unshift @INC, $LIBDIR;
1334		3293
		3294	my $bug_warning = 0;
		3295
		3296	our @WAIT_FOR_TICK;
		3297	our @WAIT_FOR_TICK_BEGIN;
		3298
		3299	sub wait_for_tick {
		3300	return unless $TICK_WATCHER->is_active;
		3301	return if $Coro::current == $Coro::main;
		3302
		3303	my $signal = new Coro::Signal;
		3304	push @WAIT_FOR_TICK, $signal;
		3305	$signal->wait;
		3306	}
		3307
		3308	sub wait_for_tick_begin {
		3309	return unless $TICK_WATCHER->is_active;
		3310	return if $Coro::current == $Coro::main;
		3311
		3312	my $signal = new Coro::Signal;
		3313	push @WAIT_FOR_TICK_BEGIN, $signal;
		3314	$signal->wait;
		3315	}
		3316
		3317	my $min = 1e6;#d#
		3318	my $avg = 10;
1335	$TICK_WATCHER = Event->timer (	3319	$TICK_WATCHER = Event->timer (
1336	reentrant => 0,	3320	reentrant => 0,
		3321	parked => 1,
1337	prio => 0,	3322	prio => 0,
1338	at => $NEXT_TICK || $TICK,	3323	at => $NEXT_TICK || $TICK,
1339	data => WF_AUTOCANCEL,	3324	data => WF_AUTOCANCEL,
1340	cb => sub {	3325	cb => sub {
1341	unless ($FREEZE) {	3326	if ($Coro::current != $Coro::main) {
		3327	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3328	unless ++$bug_warning > 10;
		3329	return;
		3330	}
		3331
		3332	$NOW = $tick_start = Event::time;
		3333
1342	cf::server_tick; # one server iteration	3334	cf::server_tick; # one server iteration
1343	$RUNTIME += $TICK;	3335
		3336	0 && sync_job {#d#
		3337	for(1..10) {
		3338	my $t = Event::time;
		3339	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3340	or die;
		3341
		3342	$map->width (50);
		3343	$map->height (50);
		3344	$map->alloc;
		3345	$map->_load_objects ("/tmp/x.map", 1);
		3346	my $t = Event::time - $t;
		3347
		3348	#next unless $t < 0.0013;#d#
		3349	if ($t < $min) {
		3350	$min = $t;
		3351	}
		3352	$avg = $avg * 0.99 + $t * 0.01;
		3353	}
		3354	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3355	exit 0;
		3356	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
1344	}	3357	};
1345		3358
		3359	$RUNTIME += $TICK;
1346	$NEXT_TICK += $TICK;	3360	$NEXT_TICK += $TICK;
1347		3361
		3362	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3363	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3364	Coro::async_pool {
		3365	write_runtime
		3366	or warn "ERROR: unable to write runtime file: $!";
		3367	};
		3368	}
		3369
		3370	# my $AFTER = Event::time;
		3371	# warn $AFTER - $NOW;#d#
		3372
		3373	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3374	$sig->send;
		3375	}
		3376	while (my $sig = shift @WAIT_FOR_TICK) {
		3377	$sig->send;
		3378	}
		3379
		3380	$NOW = Event::time;
		3381
1348	# if we are delayed by four ticks or more, skip them all	3382	# if we are delayed by four ticks or more, skip them all
1349	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3383	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1350		3384
1351	$TICK_WATCHER->at ($NEXT_TICK);	3385	$TICK_WATCHER->at ($NEXT_TICK);
1352	$TICK_WATCHER->start;	3386	$TICK_WATCHER->start;
		3387
		3388	$LOAD = ($NOW - $tick_start) / $TICK;
		3389	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3390
		3391	_post_tick;
		3392
		3393
1353	},	3394	},
1354	);	3395	);
1355		3396
		3397	{
		3398	BDB::max_poll_time $TICK * 0.1;
		3399	$BDB_POLL_WATCHER = Event->io (
		3400	reentrant => 0,
		3401	fd => BDB::poll_fileno,
		3402	poll => 'r',
		3403	prio => 0,
		3404	data => WF_AUTOCANCEL,
		3405	cb => \&BDB::poll_cb,
		3406	);
		3407	BDB::min_parallel 8;
		3408
		3409	BDB::set_sync_prepare {
		3410	my $status;
		3411	my $current = $Coro::current;
		3412	(
		3413	sub {
		3414	$status = $!;
		3415	$current->ready; undef $current;
		3416	},
		3417	sub {
		3418	Coro::schedule while defined $current;
		3419	$! = $status;
		3420	},
		3421	)
		3422	};
		3423
		3424	unless ($DB_ENV) {
		3425	$DB_ENV = BDB::db_env_create;
		3426
		3427	cf::sync_job {
		3428	eval {
		3429	BDB::db_env_open
		3430	$DB_ENV,
		3431	$BDBDIR,
		3432	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3433	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3434	0666;
		3435
		3436	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3437
		3438	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3439	$DB_ENV->set_lk_detect;
		3440	};
		3441
		3442	cf::cleanup "db_env_open(db): $@" if $@;
		3443	};
		3444	}
		3445	}
		3446
		3447	{
		3448	IO::AIO::min_parallel 8;
		3449
		3450	undef $Coro::AIO::WATCHER;
1356	IO::AIO::max_poll_time $TICK * 0.2;	3451	IO::AIO::max_poll_time $TICK * 0.1;
1357		3452	$AIO_POLL_WATCHER = Event->io (
1358	Event->io (fd => IO::AIO::poll_fileno,	3453	reentrant => 0,
1359	poll => 'r',
1360	prio => 5,
1361	data => WF_AUTOCANCEL,	3454	data => WF_AUTOCANCEL,
		3455	fd => IO::AIO::poll_fileno,
		3456	poll => 'r',
		3457	prio => 6,
1362	cb => \&IO::AIO::poll_cb);	3458	cb => \&IO::AIO::poll_cb,
		3459	);
		3460	}
1363		3461
1364	# we must not ever block the main coroutine	3462	my $_log_backtrace;
1365	$Coro::idle = sub {	3463
1366	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3464	sub _log_backtrace {
1367	warn "FATAL: Coro::idle was called, major BUG\n";	3465	my ($msg, @addr) = @_;
1368	(Coro::unblock_sub {	3466
1369	Event::one_event;	3467	$msg =~ s/\n//;
1370	})->();	3468
1371	};	3469	# limit the # of concurrent backtraces
		3470	if ($_log_backtrace < 2) {
		3471	++$_log_backtrace;
		3472	async {
		3473	my @bt = fork_call {
		3474	@addr = map { sprintf "%x", $_ } @addr;
		3475	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3476	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3477	or die "addr2line: $!";
		3478
		3479	my @funcs;
		3480	my @res = <$fh>;
		3481	chomp for @res;
		3482	while (@res) {
		3483	my ($func, $line) = splice @res, 0, 2, ();
		3484	push @funcs, "[$func] $line";
		3485	}
		3486
		3487	@funcs
		3488	};
		3489
		3490	LOG llevInfo, "[ABT] $msg\n";
		3491	LOG llevInfo, "[ABT] $_\n" for @bt;
		3492	--$_log_backtrace;
		3493	};
		3494	} else {
		3495	LOG llevInfo, "[ABT] $msg\n";
		3496	LOG llevInfo, "[ABT] [suppressed]\n";
		3497	}
		3498	}
		3499
		3500	# load additional modules
		3501	use cf::pod;
		3502
		3503	END { cf::emergency_save }
1372		3504
1373	1	3505	1
1374		3506

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