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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.106 by root, Sun Dec 31 17:29:22 2006 UTC vs.
Revision 1.277 by root, Sun Jun 10 04:24:50 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;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
		27	use Digest::MD5;
20	use Fcntl;	28	use Fcntl;
21	use IO::AIO 2.31 ();
22	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
23	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
24		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
25	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
26		41
27	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
28	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
29		44
30	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
31		46
32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
33		48
34	our %COMMAND = ();	49	our %COMMAND = ();
35	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
36	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
37		56
		57	our $RELOAD; # number of reloads so far
38	our @EVENT;	58	our @EVENT;
39	our $LIBDIR = datadir . "/ext";
40		59
41	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
42	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
43	our $NEXT_TICK;	76	our $NEXT_TICK;
44	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
45		82
46	our %CFG;	83	our %CFG;
47		84
48	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
49	our $RUNTIME;	86	our $RUNTIME;
50		87
		88	our %PLAYER; # all users
51	our %MAP; # all maps	89	our %MAP; # all maps
52	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
53	our $FREEZE;	91
		92	# used to convert map paths into valid unix filenames by replacing / by ∕
		93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
54		98
55	binmode STDOUT;	99	binmode STDOUT;
56	binmode STDERR;	100	binmode STDERR;
57		101
58	# read virtual server time, if available	102	# read virtual server time, if available
59	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
60	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
61	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
62	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
63	}	107	}
64		108
65	mkdir cf::localdir;	109	mkdir $_
66	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
67	mkdir cf::localdir . "/" . cf::tmpdir;
68	mkdir cf::localdir . "/" . cf::uniquedir;
69		111
70	our %EXT_CORO;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
71		115
72	#############################################################################	116	#############################################################################
73		117
74	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
75		119
…		…
82	=item $cf::RUNTIME	126	=item $cf::RUNTIME
83		127
84	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
85	every server tick.	129	every server tick.
86		130
87	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
88		134
89	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
90	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
91		139
92	=item $cf::NOW	140	=item $cf::NOW
93		141
94	The time of the last (current) server tick.	142	The time of the last (current) server tick.
95		143
96	=item $cf::TICK	144	=item $cf::TICK
97		145
98	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
99		157
100	=item %cf::CFG	158	=item %cf::CFG
101		159
102	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
103	from wherever your confdir points to.	161	from wherever your confdir points to.
		162
		163	=item cf::wait_for_tick, cf::wait_for_tick_begin
		164
		165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		166	returns directly I<after> the tick processing (and consequently, can only wake one process
		167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
104		168
105	=back	169	=back
106		170
107	=cut	171	=cut
108		172
109	BEGIN {	173	BEGIN {
110	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
111	my $msg = join "", @_;	175	my $msg = join "", @_;
112	utf8::encode $msg;
113		176
114	$msg .= "\n"	177	$msg .= "\n"
115	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
116		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
117	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
118	};	184	};
119	}	185	}
120		186
121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
122	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
123	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
124	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
125	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		192	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
126	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	193	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
127		194
128	# we bless all objects into (empty) derived classes to force a method lookup	195	# we bless all objects into (empty) derived classes to force a method lookup
129	# within the Safe compartment.	196	# within the Safe compartment.
130	for my $pkg (qw(	197	for my $pkg (qw(
131	cf::global cf::attachable	198	cf::global cf::attachable
…		…
140		207
141	$Event::DIED = sub {	208	$Event::DIED = sub {
142	warn "error in event callback: @_";	209	warn "error in event callback: @_";
143	};	210	};
144		211
145	my %ext_pkg;
146	my @exts;
147	my @hook;
148
149	=head2 UTILITY FUNCTIONS	212	=head2 UTILITY FUNCTIONS
150		213
151	=over 4	214	=over 4
152		215
153	=cut	216	=item dumpval $ref
154		217
		218	=cut
		219
		220	sub dumpval {
		221	eval {
		222	local $SIG{__DIE__};
		223	my $d;
		224	if (1) {
		225	$d = new Data::Dumper([$_[0]], ["*var"]);
		226	$d->Terse(1);
		227	$d->Indent(2);
		228	$d->Quotekeys(0);
		229	$d->Useqq(1);
		230	#$d->Bless(...);
		231	$d->Seen($_[1]) if @_ > 1;
		232	$d = $d->Dump();
		233	}
		234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		235	$d
		236	} || "[unable to dump $_[0]: '$@']";
		237	}
		238
155	use JSON::Syck (); # TODO# replace by JSON::PC once working	239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
156		240
157	=item $ref = cf::from_json $json	241	=item $ref = cf::from_json $json
158		242
159	Converts a JSON string into the corresponding perl data structure.	243	Converts a JSON string into the corresponding perl data structure.
160		244
161	=cut
162
163	sub from_json($) {
164	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
165	JSON::Syck::Load $_[0]
166	}
167
168	=item $json = cf::to_json $ref	245	=item $json = cf::to_json $ref
169		246
170	Converts a perl data structure into its JSON representation.	247	Converts a perl data structure into its JSON representation.
171		248
172	=cut	249	=item cf::lock_wait $string
173		250
174	sub to_json($) {	251	Wait until the given lock is available. See cf::lock_acquire.
175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	252
176	JSON::Syck::Dump $_[0]	253	=item my $lock = cf::lock_acquire $string
		254
		255	Wait until the given lock is available and then acquires it and returns
		256	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		257	for example when the coroutine gets canceled), the lock is automatically
		258	returned.
		259
		260	Lock names should begin with a unique identifier (for example, cf::map::find
		261	uses map_find and cf::map::load uses map_load).
		262
		263	=item $locked = cf::lock_active $string
		264
		265	Return true if the lock is currently active, i.e. somebody has locked it.
		266
		267	=cut
		268
		269	our %LOCK;
		270
		271	sub lock_wait($) {
		272	my ($key) = @_;
		273
		274	# wait for lock, if any
		275	while ($LOCK{$key}) {
		276	push @{ $LOCK{$key} }, $Coro::current;
		277	Coro::schedule;
		278	}
177	}	279	}
		280
		281	sub lock_acquire($) {
		282	my ($key) = @_;
		283
		284	# wait, to be sure we are not locked
		285	lock_wait $key;
		286
		287	$LOCK{$key} = [];
		288
		289	Coro::guard {
		290	# wake up all waiters, to be on the safe side
		291	$_->ready for @{ delete $LOCK{$key} };
		292	}
		293	}
		294
		295	sub lock_active($) {
		296	my ($key) = @_;
		297
		298	! ! $LOCK{$key}
		299	}
		300
		301	sub freeze_mainloop {
		302	return unless $TICK_WATCHER->is_active;
		303
		304	my $guard = Coro::guard {
		305	$TICK_WATCHER->start;
		306	};
		307	$TICK_WATCHER->stop;
		308	$guard
		309	}
		310
		311	=item cf::async { BLOCK }
		312
		313	Currently the same as Coro::async_pool, meaning you cannot use
		314	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		315	thing you are allowed to do is call C<prio> on it.
		316
		317	=cut
		318
		319	BEGIN { *async = \&Coro::async_pool }
178		320
179	=item cf::sync_job { BLOCK }	321	=item cf::sync_job { BLOCK }
180		322
181	The design of crossfire+ requires that the main coro ($Coro::main) is	323	The design of crossfire+ requires that the main coro ($Coro::main) is
182	always able to handle events or runnable, as crossfire+ is only partly	324	always able to handle events or runnable, as crossfire+ is only partly
…		…
190	=cut	332	=cut
191		333
192	sub sync_job(&) {	334	sub sync_job(&) {
193	my ($job) = @_;	335	my ($job) = @_;
194		336
195	my $busy = 1;
196	my @res;
197
198	# TODO: use suspend/resume instead
199	local $FREEZE = 1;
200
201	my $coro = Coro::async {
202	@res = eval { $job->() };
203	warn $@ if $@;
204	undef $busy;
205	};
206
207	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
		340	# this is the main coro, too bad, we have to block
		341	# till the operation succeeds, freezing the server :/
		342
		343	# TODO: use suspend/resume instead
		344	# (but this is cancel-safe)
		345	my $freeze_guard = freeze_mainloop;
		346
		347	my $busy = 1;
		348	my @res;
		349
		350	(async {
		351	@res = eval { $job->() };
		352	warn $@ if $@;
		353	undef $busy;
208	$coro->prio (Coro::PRIO_MAX);	354	})->prio (Coro::PRIO_MAX);
		355
209	while ($busy) {	356	while ($busy) {
210	Coro::cede_notself;	357	Coro::cede or Event::one_event;
211	Event::one_event unless Coro::nready;
212	}	358	}
		359
		360	$time = Event::time - $time;
		361
		362	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		363	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		364
		365	$tick_start += $time; # do not account sync jobs to server load
		366
		367	wantarray ? @res : $res[0]
213	} else {	368	} else {
214	$coro->join;	369	# we are in another coroutine, how wonderful, everything just works
		370
		371	$job->()
215	}	372	}
216
217	wantarray ? @res : $res[0]
218	}	373	}
219		374
220	=item $coro = cf::coro { BLOCK }	375	=item $coro = cf::async_ext { BLOCK }
221		376
222	Creates and returns a new coro. This coro is automcatially being canceled	377	Like async, but this coro is automatically being canceled when the
223	when the extension calling this is being unloaded.	378	extension calling this is being unloaded.
224		379
225	=cut	380	=cut
226		381
227	sub coro(&) {	382	sub async_ext(&) {
228	my $cb = shift;	383	my $cb = shift;
229		384
230	my $coro; $coro = async {	385	my $coro = &Coro::async ($cb);
231	eval {
232	$cb->();
233	};
234	warn $@ if $@;
235	};
236		386
237	$coro->on_destroy (sub {	387	$coro->on_destroy (sub {
238	delete $EXT_CORO{$coro+0};	388	delete $EXT_CORO{$coro+0};
239	});	389	});
240	$EXT_CORO{$coro+0} = $coro;	390	$EXT_CORO{$coro+0} = $coro;
241		391
242	$coro	392	$coro
		393	}
		394
		395	sub write_runtime {
		396	my $runtime = "$LOCALDIR/runtime";
		397
		398	# first touch the runtime file to show we are still running:
		399	# the fsync below can take a very very long time.
		400
		401	IO::AIO::aio_utime $runtime, undef, undef;
		402
		403	my $guard = cf::lock_acquire "write_runtime";
		404
		405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		406	or return;
		407
		408	my $value = $cf::RUNTIME + 90 + 10;
		409	# 10 is the runtime save interval, for a monotonic clock
		410	# 60 allows for the watchdog to kill the server.
		411
		412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		413	and return;
		414
		415	# always fsync - this file is important
		416	aio_fsync $fh
		417	and return;
		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
		422	close $fh
		423	or return;
		424
		425	aio_rename "$runtime~", $runtime
		426	and return;
		427
		428	warn "runtime file written.\n";
		429
		430	1
		431	}
		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
243	}	442	}
244		443
245	=back	444	=back
246		445
247	=cut	446	=cut
…		…
378	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
379	our @CB_MAP = ();	578	our @CB_MAP = ();
380		579
381	my %attachment;	580	my %attachment;
382		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
383	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
384	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
385		590
386	use sort 'stable';	591	use sort 'stable';
387		592
…		…
421	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
422		627
423	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
424	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
425	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
426	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
427		632
428	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
429	my $pkg = shift @arg;	634	my $pkg = shift @arg;
430		635
431	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
472	if (ref $_[0]) {	677	if (ref $_[0]) {
473	_object_attach @_;	678	_object_attach @_;
474	} else {	679	} else {
475	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
476	}	681	}
		682	_recalc_want;
477	};	683	};
478		684
479	# all those should be optimised	685	# all those should be optimised
480	sub cf::attachable::detach {	686	sub cf::attachable::detach {
481	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
484	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
485	reattach ($obj);	691	reattach ($obj);
486	} else {	692	} else {
487	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
488	}	694	}
		695	_recalc_want;
489	};	696	};
490		697
491	sub cf::attachable::attached {	698	sub cf::attachable::attached {
492	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
493		700
…		…
558	# object support	765	# object support
559		766
560	sub reattach {	767	sub reattach {
561	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
562	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
563		772
564	my $registry = $obj->registry;	773	my $registry = $obj->registry;
565		774
566	@$registry = ();	775	@$registry = ();
567		776
…		…
614	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
615		824
616	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
617	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
618	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
619	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
620	close $fh;	829	close $fh;
621		830
622	if (@$objs) {	831	if (@$objs) {
623	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
624	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
625	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
626	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
627	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
628	close $fh;	837	close $fh;
629	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
630	}	839	}
631	} else {	840	} else {
632	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
660	or return;	869	or return;
661		870
662	unless (aio_stat "$filename.pst") {	871	unless (aio_stat "$filename.pst") {
663	(aio_load "$filename.pst", $av) >= 0	872	(aio_load "$filename.pst", $av) >= 0
664	or return;	873	or return;
665	$av = eval { (Storable::thaw <$av>)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
666	}	875	}
667		876
		877	warn sprintf "loading %s (%d)\n",
		878	$filename, length $data, scalar @{$av || []};
668	return ($data, $av);	879	return ($data, $av);
669	}	880	}
670		881
671	#############################################################################	882	#############################################################################
672	# command handling &c	883	# command handling &c
…		…
697	=cut	908	=cut
698		909
699	sub register_extcmd {	910	sub register_extcmd {
700	my ($name, $cb) = @_;	911	my ($name, $cb) = @_;
701		912
702	my $caller = caller;
703	#warn "registering extcmd '$name' to '$caller'";
704
705	$EXTCMD{$name} = [$cb, $caller];	913	$EXTCMD{$name} = $cb;
706	}	914	}
707		915
708	cf::player->attach (	916	cf::player->attach (
709	on_command => sub {	917	on_command => sub {
710	my ($pl, $name, $params) = @_;	918	my ($pl, $name, $params) = @_;
…		…
723		931
724	my $msg = eval { from_json $buf };	932	my $msg = eval { from_json $buf };
725		933
726	if (ref $msg) {	934	if (ref $msg) {
727	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
728	if (my %reply = $cb->[0]->($pl, $msg)) {	936	if (my %reply = $cb->($pl, $msg)) {
729	$pl->ext_reply ($msg->{msgid}, %reply);	937	$pl->ext_reply ($msg->{msgid}, %reply);
730	}	938	}
731	}	939	}
732	} else {	940	} else {
733	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
735		943
736	cf::override;	944	cf::override;
737	},	945	},
738	);	946	);
739		947
740	sub register {
741	my ($base, $pkg) = @_;
742
743	#TODO
744	}
745
746	sub load_extension {	948	sub load_extension {
747	my ($path) = @_;	949	my ($path) = @_;
748		950
749	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	951	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
750	my $base = $1;	952	my $base = $1;
751	my $pkg = $1;	953	my $pkg = $1;
752	$pkg =~ s/[^[:word:]]/_/g;	954	$pkg =~ s/[^[:word:]]/_/g;
753	$pkg = "ext::$pkg";	955	$pkg = "ext::$pkg";
754		956
755	warn "loading '$path' into '$pkg'\n";	957	warn "... loading '$path' into '$pkg'\n";
756		958
757	open my $fh, "<:utf8", $path	959	open my $fh, "<:utf8", $path
758	or die "$path: $!";	960	or die "$path: $!";
759		961
760	my $source =	962	my $source =
761	"package $pkg; use strict; use utf8;\n"	963	"package $pkg; use strict; use utf8;\n"
762	. "#line 1 \"$path\"\n{\n"	964	. "#line 1 \"$path\"\n{\n"
763	. (do { local $/; <$fh> })	965	. (do { local $/; <$fh> })
764	. "\n};\n1";	966	. "\n};\n1";
765		967
766	eval $source	968	unless (eval $source) {
767	or die $@ ? "$path: $@\n"	969	my $msg = $@ ? "$path: $@\n"
768	: "extension disabled.\n";	970	: "extension disabled.\n";
769		971	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
770	push @exts, $pkg;	972	warn $@;
771	$ext_pkg{$base} = $pkg;	973	warn "mandatory extension failed to load, exiting.\n";
772		974	exit 1;
773	# no strict 'refs';	975	}
774	# @{"$pkg\::ISA"} = ext::;	976	die $@;
775
776	register $base, $pkg;
777	}
778
779	sub unload_extension {
780	my ($pkg) = @_;
781
782	warn "removing extension $pkg\n";
783
784	# remove hooks
785	#TODO
786	# for my $idx (0 .. $#PLUGIN_EVENT) {
787	# delete $hook[$idx]{$pkg};
788	# }	977	}
789		978
790	# remove commands	979	push @EXTS, $pkg;
791	for my $name (keys %COMMAND) {
792	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
793
794	if (@cb) {
795	$COMMAND{$name} = \@cb;
796	} else {
797	delete $COMMAND{$name};
798	}
799	}
800
801	# remove extcmds
802	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
803	delete $EXTCMD{$name};
804	}
805
806	if (my $cb = $pkg->can ("unload")) {
807	eval {
808	$cb->($pkg);
809	1
810	} or warn "$pkg unloaded, but with errors: $@";
811	}
812
813	Symbol::delete_package $pkg;
814	}	980	}
815		981
816	sub load_extensions {	982	sub load_extensions {
817	for my $ext (<$LIBDIR/*.ext>) {	983	for my $ext (<$LIBDIR/*.ext>) {
818	next unless -r $ext;	984	next unless -r $ext;
…		…
822	} or warn "$ext not loaded: $@";	988	} or warn "$ext not loaded: $@";
823	}	989	}
824	}	990	}
825		991
826	#############################################################################	992	#############################################################################
827	# load/save/clean perl data associated with a map
828		993
829	*cf::mapsupport::on_clean = sub {	994	=head2 CORE EXTENSIONS
		995
		996	Functions and methods that extend core crossfire objects.
		997
		998	=cut
		999
		1000	package cf::player;
		1001
		1002	use Coro::AIO;
		1003
		1004	=head3 cf::player
		1005
		1006	=over 4
		1007
		1008	=item cf::player::find $login
		1009
		1010	Returns the given player object, loading it if necessary (might block).
		1011
		1012	=cut
		1013
		1014	sub playerdir($) {
		1015	"$PLAYERDIR/"
		1016	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1017	}
		1018
		1019	sub path($) {
		1020	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1021
		1022	(playerdir $login) . "/playerdata"
		1023	}
		1024
		1025	sub find_active($) {
		1026	$cf::PLAYER{$_[0]}
		1027	and $cf::PLAYER{$_[0]}->active
		1028	and $cf::PLAYER{$_[0]}
		1029	}
		1030
		1031	sub exists($) {
		1032	my ($login) = @_;
		1033
		1034	$cf::PLAYER{$login}
		1035	or cf::sync_job { !aio_stat path $login }
		1036	}
		1037
		1038	sub find($) {
		1039	return $cf::PLAYER{$_[0]} || do {
		1040	my $login = $_[0];
		1041
		1042	my $guard = cf::lock_acquire "user_find:$login";
		1043
		1044	$cf::PLAYER{$_[0]} || do {
		1045	# rename old playerfiles to new ones
		1046	#TODO: remove when no longer required
		1047	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1048	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1049	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1050	aio_unlink +(playerdir $login) . "/$login.pl";
		1051
		1052	my $pl = load_pl path $login
		1053	or return;
		1054	$cf::PLAYER{$login} = $pl
		1055	}
		1056	}
		1057	}
		1058
		1059	sub save($) {
		1060	my ($pl) = @_;
		1061
		1062	return if $pl->{deny_save};
		1063
		1064	my $path = path $pl;
		1065	my $guard = cf::lock_acquire "user_save:$path";
		1066
		1067	return if $pl->{deny_save};
		1068
		1069	aio_mkdir playerdir $pl, 0770;
		1070	$pl->{last_save} = $cf::RUNTIME;
		1071
		1072	$pl->save_pl ($path);
		1073	Coro::cede;
		1074	}
		1075
		1076	sub new($) {
		1077	my ($login) = @_;
		1078
		1079	my $self = create;
		1080
		1081	$self->ob->name ($login);
		1082	$self->{deny_save} = 1;
		1083
		1084	$cf::PLAYER{$login} = $self;
		1085
		1086	$self
		1087	}
		1088
		1089	=item $pl->quit_character
		1090
		1091	Nukes the player without looking back. If logged in, the connection will
		1092	be destroyed. May block for a long time.
		1093
		1094	=cut
		1095
		1096	sub quit_character {
		1097	my ($pl) = @_;
		1098
		1099	my $name = $pl->ob->name;
		1100
		1101	$pl->{deny_save} = 1;
		1102	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1103
		1104	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1105	$pl->deactivate;
		1106	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1107	$pl->ns->destroy if $pl->ns;
		1108
		1109	my $path = playerdir $pl;
		1110	my $temp = "$path~$cf::RUNTIME~deleting~";
		1111	aio_rename $path, $temp;
		1112	delete $cf::PLAYER{$pl->ob->name};
		1113	$pl->destroy;
		1114
		1115	my $prefix = qr<^~\Q$name\E/>;
		1116
		1117	# nuke player maps
		1118	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1119
		1120	IO::AIO::aio_rmtree $temp;
		1121	}
		1122
		1123	=item $pl->kick
		1124
		1125	Kicks a player out of the game. This destroys the connection.
		1126
		1127	=cut
		1128
		1129	sub kick {
		1130	my ($pl, $kicker) = @_;
		1131
		1132	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1133	$pl->killer ("kicked");
		1134	$pl->ns->destroy;
		1135	}
		1136
		1137	=item cf::player::list_logins
		1138
		1139	Returns am arrayref of all valid playernames in the system, can take a
		1140	while and may block, so not sync_job-capable, ever.
		1141
		1142	=cut
		1143
		1144	sub list_logins {
		1145	my $dirs = aio_readdir $PLAYERDIR
		1146	or return [];
		1147
		1148	my @logins;
		1149
		1150	for my $login (@$dirs) {
		1151	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1152	aio_read $fh, 0, 512, my $buf, 0 or next;
		1153	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1154
		1155	utf8::decode $login;
		1156	push @logins, $login;
		1157	}
		1158
		1159	\@logins
		1160	}
		1161
		1162	=item $player->maps
		1163
		1164	Returns an arrayref of map paths that are private for this
		1165	player. May block.
		1166
		1167	=cut
		1168
		1169	sub maps($) {
		1170	my ($pl) = @_;
		1171
		1172	$pl = ref $pl ? $pl->ob->name : $pl;
		1173
		1174	my $files = aio_readdir playerdir $pl
		1175	or return;
		1176
		1177	my @paths;
		1178
		1179	for (@$files) {
		1180	utf8::decode $_;
		1181	next if /\.(?:pl|pst)$/;
		1182	next unless /^$PATH_SEP/o;
		1183
		1184	push @paths, cf::map::normalise "~$pl/$_";
		1185	}
		1186
		1187	\@paths
		1188	}
		1189
		1190	=item $player->ext_reply ($msgid, %msg)
		1191
		1192	Sends an ext reply to the player.
		1193
		1194	=cut
		1195
		1196	sub ext_reply($$%) {
		1197	my ($self, $id, %msg) = @_;
		1198
		1199	$msg{msgid} = $id;
		1200
		1201	$self->send ("ext " . cf::to_json \%msg);
		1202	}
		1203
		1204	=item $player->ext_event ($type, %msg)
		1205
		1206	Sends an ext event to the client.
		1207
		1208	=cut
		1209
		1210	sub ext_event($$%) {
		1211	my ($self, $type, %msg) = @_;
		1212
		1213	$self->ns->ext_event ($type, %msg);
		1214	}
		1215
		1216	=head3 cf::region
		1217
		1218	=over 4
		1219
		1220	=cut
		1221
		1222	package cf::region;
		1223
		1224	=item cf::region::find_by_path $path
		1225
		1226	Tries to decuce the probable region for a map knowing only its path.
		1227
		1228	=cut
		1229
		1230	sub find_by_path($) {
		1231	my ($path) = @_;
		1232
		1233	my ($match, $specificity);
		1234
		1235	for my $region (list) {
		1236	if ($region->match && $path =~ $region->match) {
		1237	($match, $specificity) = ($region, $region->specificity)
		1238	if $region->specificity > $specificity;
		1239	}
		1240	}
		1241
		1242	$match
		1243	}
		1244
		1245	=back
		1246
		1247	=head3 cf::map
		1248
		1249	=over 4
		1250
		1251	=cut
		1252
		1253	package cf::map;
		1254
		1255	use Fcntl;
		1256	use Coro::AIO;
		1257
		1258	use overload
		1259	'""' => \&as_string,
		1260	fallback => 1;
		1261
		1262	our $MAX_RESET = 3600;
		1263	our $DEFAULT_RESET = 3000;
		1264
		1265	sub generate_random_map {
		1266	my ($self, $rmp) = @_;
		1267	# mit "rum" bekleckern, nicht
		1268	$self->_create_random_map (
		1269	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1270	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1271	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1272	$rmp->{exit_on_final_map},
		1273	$rmp->{xsize}, $rmp->{ysize},
		1274	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1275	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1276	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1277	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1278	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1279	(cf::region::find $rmp->{region}), $rmp->{custom}
		1280	)
		1281	}
		1282
		1283	=item cf::map->register ($regex, $prio)
		1284
		1285	Register a handler for the map path matching the given regex at the
		1286	givne priority (higher is better, built-in handlers have priority 0, the
		1287	default).
		1288
		1289	=cut
		1290
		1291	sub register {
		1292	my (undef, $regex, $prio) = @_;
		1293	my $pkg = caller;
		1294
		1295	no strict;
		1296	push @{"$pkg\::ISA"}, __PACKAGE__;
		1297
		1298	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1299	}
		1300
		1301	# also paths starting with '/'
		1302	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1303
		1304	sub thawer_merge {
		1305	my ($self, $merge) = @_;
		1306
		1307	# we have to keep some variables in memory intact
		1308	local $self->{path};
		1309	local $self->{load_path};
		1310
		1311	$self->SUPER::thawer_merge ($merge);
		1312	}
		1313
		1314	sub normalise {
		1315	my ($path, $base) = @_;
		1316
		1317	$path = "$path"; # make sure its a string
		1318
		1319	$path =~ s/\.map$//;
		1320
		1321	# map plan:
		1322	#
		1323	# /! non-realised random map exit (special hack!)
		1324	# {... are special paths that are not being touched
		1325	# ?xxx/... are special absolute paths
		1326	# ?random/... random maps
		1327	# /... normal maps
		1328	# ~user/... per-player map of a specific user
		1329
		1330	$path =~ s/$PATH_SEP/\//go;
		1331
		1332	# treat it as relative path if it starts with
		1333	# something that looks reasonable
		1334	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1335	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1336
		1337	$base =~ s{[^/]+/?$}{};
		1338	$path = "$base/$path";
		1339	}
		1340
		1341	for ($path) {
		1342	redo if s{//}{/};
		1343	redo if s{/\.?/}{/};
		1344	redo if s{/[^/]+/\.\./}{/};
		1345	}
		1346
		1347	$path
		1348	}
		1349
		1350	sub new_from_path {
		1351	my (undef, $path, $base) = @_;
		1352
		1353	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1354
		1355	$path = normalise $path, $base;
		1356
		1357	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1358	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1359	my $self = bless cf::map::new, $pkg;
		1360	$self->{path} = $path; $self->path ($path);
		1361	$self->init; # pass $1 etc.
		1362	return $self;
		1363	}
		1364	}
		1365
		1366	Carp::carp "unable to resolve path '$path' (base '$base').";
		1367	()
		1368	}
		1369
		1370	sub init {
		1371	my ($self) = @_;
		1372
		1373	$self
		1374	}
		1375
		1376	sub as_string {
		1377	my ($self) = @_;
		1378
		1379	"$self->{path}"
		1380	}
		1381
		1382	# the displayed name, this is a one way mapping
		1383	sub visible_name {
		1384	&as_string
		1385	}
		1386
		1387	# the original (read-only) location
		1388	sub load_path {
		1389	my ($self) = @_;
		1390
		1391	"$MAPDIR/$self->{path}.map"
		1392	}
		1393
		1394	# the temporary/swap location
		1395	sub save_path {
		1396	my ($self) = @_;
		1397
		1398	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1399	"$TMPDIR/$path.map"
		1400	}
		1401
		1402	# the unique path, undef == no special unique path
		1403	sub uniq_path {
		1404	my ($self) = @_;
		1405
		1406	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1407	"$UNIQUEDIR/$path"
		1408	}
		1409
		1410	# and all this just because we cannot iterate over
		1411	# all maps in C++...
		1412	sub change_all_map_light {
		1413	my ($change) = @_;
		1414
		1415	$_->change_map_light ($change)
		1416	for grep $_->outdoor, values %cf::MAP;
		1417	}
		1418
		1419	sub decay_objects {
		1420	my ($self) = @_;
		1421
		1422	return if $self->{deny_reset};
		1423
		1424	$self->do_decay_objects;
		1425	}
		1426
		1427	sub unlink_save {
		1428	my ($self) = @_;
		1429
		1430	utf8::encode (my $save = $self->save_path);
		1431	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1432	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1433	}
		1434
		1435	sub load_header_from($) {
		1436	my ($self, $path) = @_;
		1437
		1438	utf8::encode $path;
		1439	#aio_open $path, O_RDONLY, 0
		1440	# or return;
		1441
		1442	$self->_load_header ($path)
		1443	or return;
		1444
		1445	$self->{load_path} = $path;
		1446
		1447	1
		1448	}
		1449
		1450	sub load_header_orig {
		1451	my ($self) = @_;
		1452
		1453	$self->load_header_from ($self->load_path)
		1454	}
		1455
		1456	sub load_header_temp {
		1457	my ($self) = @_;
		1458
		1459	$self->load_header_from ($self->save_path)
		1460	}
		1461
		1462	sub prepare_temp {
		1463	my ($self) = @_;
		1464
		1465	$self->last_access ((delete $self->{last_access})
		1466	|| $cf::RUNTIME); #d#
		1467	# safety
		1468	$self->{instantiate_time} = $cf::RUNTIME
		1469	if $self->{instantiate_time} > $cf::RUNTIME;
		1470	}
		1471
		1472	sub prepare_orig {
		1473	my ($self) = @_;
		1474
		1475	$self->{load_original} = 1;
		1476	$self->{instantiate_time} = $cf::RUNTIME;
		1477	$self->last_access ($cf::RUNTIME);
		1478	$self->instantiate;
		1479	}
		1480
		1481	sub load_header {
		1482	my ($self) = @_;
		1483
		1484	if ($self->load_header_temp) {
		1485	$self->prepare_temp;
		1486	} else {
		1487	$self->load_header_orig
		1488	or return;
		1489	$self->prepare_orig;
		1490	}
		1491
		1492	$self->{deny_reset} = 1
		1493	if $self->no_reset;
		1494
		1495	$self->default_region (cf::region::find_by_path $self->{path})
		1496	unless $self->default_region;
		1497
		1498	1
		1499	}
		1500
		1501	sub find;
		1502	sub find {
		1503	my ($path, $origin) = @_;
		1504
		1505	$path = normalise $path, $origin && $origin->path;
		1506
		1507	cf::lock_wait "map_find:$path";
		1508
		1509	$cf::MAP{$path} || do {
		1510	my $guard = cf::lock_acquire "map_find:$path";
		1511	my $map = new_from_path cf::map $path
		1512	or return;
		1513
		1514	$map->{last_save} = $cf::RUNTIME;
		1515
		1516	$map->load_header
		1517	or return;
		1518
		1519	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1520	# doing this can freeze the server in a sync job, obviously
		1521	#$cf::WAIT_FOR_TICK->wait;
		1522	$map->reset;
		1523	undef $guard;
		1524	return find $path;
		1525	}
		1526
		1527	$cf::MAP{$path} = $map
		1528	}
		1529	}
		1530
		1531	sub pre_load { }
		1532	sub post_load { }
		1533
		1534	sub load {
		1535	my ($self) = @_;
		1536
		1537	local $self->{deny_reset} = 1; # loading can take a long time
		1538
		1539	my $path = $self->{path};
		1540
		1541	{
		1542	my $guard = cf::lock_acquire "map_load:$path";
		1543
		1544	return if $self->in_memory != cf::MAP_SWAPPED;
		1545
		1546	$self->in_memory (cf::MAP_LOADING);
		1547
		1548	$self->alloc;
		1549
		1550	$self->pre_load;
		1551	Coro::cede;
		1552
		1553	$self->_load_objects ($self->{load_path}, 1)
		1554	or return;
		1555
		1556	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1557	if delete $self->{load_original};
		1558
		1559	if (my $uniq = $self->uniq_path) {
		1560	utf8::encode $uniq;
		1561	if (aio_open $uniq, O_RDONLY, 0) {
		1562	$self->clear_unique_items;
		1563	$self->_load_objects ($uniq, 0);
		1564	}
		1565	}
		1566
		1567	Coro::cede;
		1568	# now do the right thing for maps
		1569	$self->link_multipart_objects;
		1570	$self->difficulty ($self->estimate_difficulty)
		1571	unless $self->difficulty;
		1572	Coro::cede;
		1573
		1574	unless ($self->{deny_activate}) {
		1575	$self->decay_objects;
		1576	$self->fix_auto_apply;
		1577	$self->update_buttons;
		1578	Coro::cede;
		1579	$self->set_darkness_map;
		1580	Coro::cede;
		1581	$self->activate;
		1582	}
		1583
		1584	$self->in_memory (cf::MAP_IN_MEMORY);
		1585	}
		1586
		1587	$self->post_load;
		1588	}
		1589
		1590	sub customise_for {
		1591	my ($self, $ob) = @_;
		1592
		1593	return find "~" . $ob->name . "/" . $self->{path}
		1594	if $self->per_player;
		1595
		1596	# return find "?party/" . $ob->name . "/" . $self->{path}
		1597	# if $self->per_party;
		1598
		1599	$self
		1600	}
		1601
		1602	# find and load all maps in the 3x3 area around a map
		1603	sub load_diag {
830	my ($map) = @_;	1604	my ($map) = @_;
831		1605
832	my $path = $map->tmpname;	1606	my @diag; # diagonal neighbours
833	defined $path or return;
834		1607
835	unlink "$path.pst";	1608	for (0 .. 3) {
836	};	1609	my $neigh = $map->tile_path ($_)
		1610	or next;
		1611	$neigh = find $neigh, $map
		1612	or next;
		1613	$neigh->load;
837		1614
838	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1615	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1616	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1617	}
839		1618
840	#############################################################################	1619	for (@diag) {
841	# load/save perl data associated with player->ob objects	1620	my $neigh = find @$_
842		1621	or next;
843	sub all_objects(@) {	1622	$neigh->load;
844	@_, map all_objects ($_->inv), @_	1623	}
845	}	1624	}
846		1625
847	# TODO: compatibility cruft, remove when no longer needed	1626	sub find_sync {
848	cf::player->attach (	1627	my ($path, $origin) = @_;
849	on_load => sub {
850	my ($pl, $path) = @_;
851		1628
852	for my $o (all_objects $pl->ob) {	1629	cf::sync_job { find $path, $origin }
853	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1630	}
854	$o->set_ob_key_value ("_perl_data");
855		1631
856	%$o = %{ Storable::thaw pack "H*", $value };	1632	sub do_load_sync {
		1633	my ($map) = @_;
		1634
		1635	cf::sync_job { $map->load };
		1636	}
		1637
		1638	our %MAP_PREFETCH;
		1639	our $MAP_PREFETCHER = undef;
		1640
		1641	sub find_async {
		1642	my ($path, $origin) = @_;
		1643
		1644	$path = normalise $path, $origin && $origin->{path};
		1645
		1646	if (my $map = $cf::MAP{$path}) {
		1647	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1648	}
		1649
		1650	undef $MAP_PREFETCH{$path};
		1651	$MAP_PREFETCHER ||= cf::async {
		1652	while (%MAP_PREFETCH) {
		1653	for my $path (keys %MAP_PREFETCH) {
		1654	my $map = find $path
		1655	or next;
		1656	$map->load;
		1657
		1658	delete $MAP_PREFETCH{$path};
857	}	1659	}
858	}	1660	}
		1661	undef $MAP_PREFETCHER;
		1662	};
		1663	$MAP_PREFETCHER->prio (6);
		1664
		1665	()
		1666	}
		1667
		1668	sub save {
		1669	my ($self) = @_;
		1670
		1671	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1672
		1673	$self->{last_save} = $cf::RUNTIME;
		1674
		1675	return unless $self->dirty;
		1676
		1677	my $save = $self->save_path; utf8::encode $save;
		1678	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1679
		1680	$self->{load_path} = $save;
		1681
		1682	return if $self->{deny_save};
		1683
		1684	local $self->{last_access} = $self->last_access;#d#
		1685
		1686	cf::async {
		1687	$_->contr->save for $self->players;
		1688	};
		1689
		1690	if ($uniq) {
		1691	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1692	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1693	} else {
		1694	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
859	},	1695	}
860	);	1696	}
861		1697
862	#############################################################################	1698	sub swap_out {
		1699	my ($self) = @_;
863		1700
864	=head2 CORE EXTENSIONS	1701	# save first because save cedes
		1702	$self->save;
865		1703
866	Functions and methods that extend core crossfire objects.	1704	my $lock = cf::lock_acquire "map_data:" . $self->path;
867		1705
868	=head3 cf::player	1706	return if $self->players;
		1707	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1708	return if $self->{deny_save};
		1709
		1710	$self->clear;
		1711	$self->in_memory (cf::MAP_SWAPPED);
		1712	}
		1713
		1714	sub reset_at {
		1715	my ($self) = @_;
		1716
		1717	# TODO: safety, remove and allow resettable per-player maps
		1718	return 1e99 if $self->{deny_reset};
		1719
		1720	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1721	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1722
		1723	$time + $to
		1724	}
		1725
		1726	sub should_reset {
		1727	my ($self) = @_;
		1728
		1729	$self->reset_at <= $cf::RUNTIME
		1730	}
		1731
		1732	sub reset {
		1733	my ($self) = @_;
		1734
		1735	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1736
		1737	return if $self->players;
		1738
		1739	warn "resetting map ", $self->path;
		1740
		1741	$self->in_memory (cf::MAP_SWAPPED);
		1742
		1743	# need to save uniques path
		1744	unless ($self->{deny_save}) {
		1745	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1746
		1747	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1748	if $uniq;
		1749	}
		1750
		1751	delete $cf::MAP{$self->path};
		1752
		1753	$self->clear;
		1754
		1755	$_->clear_links_to ($self) for values %cf::MAP;
		1756
		1757	$self->unlink_save;
		1758	$self->destroy;
		1759	}
		1760
		1761	my $nuke_counter = "aaaa";
		1762
		1763	sub nuke {
		1764	my ($self) = @_;
		1765
		1766	delete $cf::MAP{$self->path};
		1767
		1768	$self->unlink_save;
		1769
		1770	bless $self, "cf::map";
		1771	delete $self->{deny_reset};
		1772	$self->{deny_save} = 1;
		1773	$self->reset_timeout (1);
		1774	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1775
		1776	$cf::MAP{$self->path} = $self;
		1777
		1778	$self->reset; # polite request, might not happen
		1779	}
		1780
		1781	=item $maps = cf::map::tmp_maps
		1782
		1783	Returns an arrayref with all map paths of currently instantiated and saved
		1784	maps. May block.
		1785
		1786	=cut
		1787
		1788	sub tmp_maps() {
		1789	[
		1790	map {
		1791	utf8::decode $_;
		1792	/\.map$/
		1793	? normalise $_
		1794	: ()
		1795	} @{ aio_readdir $TMPDIR or [] }
		1796	]
		1797	}
		1798
		1799	=item $maps = cf::map::random_maps
		1800
		1801	Returns an arrayref with all map paths of currently instantiated and saved
		1802	random maps. May block.
		1803
		1804	=cut
		1805
		1806	sub random_maps() {
		1807	[
		1808	map {
		1809	utf8::decode $_;
		1810	/\.map$/
		1811	? normalise "?random/$_"
		1812	: ()
		1813	} @{ aio_readdir $RANDOMDIR or [] }
		1814	]
		1815	}
		1816
		1817	=item cf::map::unique_maps
		1818
		1819	Returns an arrayref of paths of all shared maps that have
		1820	instantiated unique items. May block.
		1821
		1822	=cut
		1823
		1824	sub unique_maps() {
		1825	[
		1826	map {
		1827	utf8::decode $_;
		1828	/\.map$/
		1829	? normalise $_
		1830	: ()
		1831	} @{ aio_readdir $UNIQUEDIR or [] }
		1832	]
		1833	}
		1834
		1835	package cf;
		1836
		1837	=back
		1838
		1839	=head3 cf::object
		1840
		1841	=cut
		1842
		1843	package cf::object;
869		1844
870	=over 4	1845	=over 4
871		1846
872	=item cf::player::exists $login	1847	=item $ob->inv_recursive
873		1848
874	Returns true when the given account exists.	1849	Returns the inventory of the object _and_ their inventories, recursively.
875		1850
876	=cut	1851	=cut
877		1852
878	sub cf::player::exists($) {	1853	sub inv_recursive_;
879	cf::player::find $_[0]	1854	sub inv_recursive_ {
880	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1855	map { $_, inv_recursive_ $_->inv } @_
881	}	1856	}
882		1857
883	=item $player->ext_reply ($msgid, $msgtype, %msg)	1858	sub inv_recursive {
884		1859	inv_recursive_ inv $_[0]
885	Sends an ext reply to the player.
886
887	=cut
888
889	sub cf::player::ext_reply($$$%) {
890	my ($self, $id, %msg) = @_;
891
892	$msg{msgid} = $id;
893
894	$self->send ("ext " . to_json \%msg);
895	}	1860	}
		1861
		1862	package cf;
896		1863
897	=back	1864	=back
898		1865
899	=head3 cf::object::player	1866	=head3 cf::object::player
900		1867
…		…
938	(ref $cf::CFG{"may_$access"}	1905	(ref $cf::CFG{"may_$access"}
939	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1906	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
940	: $cf::CFG{"may_$access"})	1907	: $cf::CFG{"may_$access"})
941	}	1908	}
942		1909
		1910	=item $player_object->enter_link
		1911
		1912	Freezes the player and moves him/her to a special map (C<{link}>).
		1913
		1914	The player should be reasonably safe there for short amounts of time. You
		1915	I<MUST> call C<leave_link> as soon as possible, though.
		1916
		1917	Will never block.
		1918
		1919	=item $player_object->leave_link ($map, $x, $y)
		1920
		1921	Moves the player out of the special C<{link}> map onto the specified
		1922	map. If the map is not valid (or omitted), the player will be moved back
		1923	to the location he/she was before the call to C<enter_link>, or, if that
		1924	fails, to the emergency map position.
		1925
		1926	Might block.
		1927
		1928	=cut
		1929
		1930	sub link_map {
		1931	unless ($LINK_MAP) {
		1932	$LINK_MAP = cf::map::find "{link}"
		1933	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1934	$LINK_MAP->load;
		1935	}
		1936
		1937	$LINK_MAP
		1938	}
		1939
		1940	sub cf::object::player::enter_link {
		1941	my ($self) = @_;
		1942
		1943	$self->deactivate_recursive;
		1944
		1945	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1946
		1947	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1948	if $self->map && $self->map->{path} ne "{link}";
		1949
		1950	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1951	}
		1952
		1953	sub cf::object::player::leave_link {
		1954	my ($self, $map, $x, $y) = @_;
		1955
		1956	return unless $self->contr->active;
		1957
		1958	my $link_pos = delete $self->{_link_pos};
		1959
		1960	unless ($map) {
		1961	# restore original map position
		1962	($map, $x, $y) = @{ $link_pos || [] };
		1963	$map = cf::map::find $map;
		1964
		1965	unless ($map) {
		1966	($map, $x, $y) = @$EMERGENCY_POSITION;
		1967	$map = cf::map::find $map
		1968	or die "FATAL: cannot load emergency map\n";
		1969	}
		1970	}
		1971
		1972	($x, $y) = (-1, -1)
		1973	unless (defined $x) && (defined $y);
		1974
		1975	# use -1 or undef as default coordinates, not 0, 0
		1976	($x, $y) = ($map->enter_x, $map->enter_y)
		1977	if $x <=0 && $y <= 0;
		1978
		1979	$map->load;
		1980	$map->load_diag;
		1981
		1982	return unless $self->contr->active;
		1983	$self->activate_recursive;
		1984
		1985	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		1986	$self->enter_map ($map, $x, $y);
		1987	}
		1988
		1989	=item $player_object->goto ($path, $x, $y[, $check->($map)])
		1990
		1991	Moves the player to the given map-path and coordinates by first freezing
		1992	her, loading and preparing them map, calling the provided $check callback
		1993	that has to return the map if sucecssful, and then unfreezes the player on
		1994	the new (success) or old (failed) map position.
		1995
		1996	=cut
		1997
		1998	our $GOTOGEN;
		1999
		2000	sub cf::object::player::goto {
		2001	my ($self, $path, $x, $y, $check) = @_;
		2002
		2003	# do generation counting so two concurrent goto's will be executed in-order
		2004	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2005
		2006	$self->enter_link;
		2007
		2008	(async {
		2009	my $map = eval {
		2010	my $map = cf::map::find $path;
		2011
		2012	if ($map) {
		2013	$map = $map->customise_for ($self);
		2014	$map = $check->($map) if $check && $map;
		2015	} else {
		2016	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2017	}
		2018
		2019	$map
		2020	};
		2021
		2022	if ($@) {
		2023	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2024	LOG llevError | logBacktrace, Carp::longmess $@;
		2025	}
		2026
		2027	if ($gen == $self->{_goto_generation}) {
		2028	delete $self->{_goto_generation};
		2029	$self->leave_link ($map, $x, $y);
		2030	}
		2031	})->prio (1);
		2032	}
		2033
		2034	=item $player_object->enter_exit ($exit_object)
		2035
		2036	=cut
		2037
		2038	sub parse_random_map_params {
		2039	my ($spec) = @_;
		2040
		2041	my $rmp = { # defaults
		2042	xsize => (cf::rndm 15, 40),
		2043	ysize => (cf::rndm 15, 40),
		2044	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2045	#layout => string,
		2046	};
		2047
		2048	for (split /\n/, $spec) {
		2049	my ($k, $v) = split /\s+/, $_, 2;
		2050
		2051	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2052	}
		2053
		2054	$rmp
		2055	}
		2056
		2057	sub prepare_random_map {
		2058	my ($exit) = @_;
		2059
		2060	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2061
		2062	# all this does is basically replace the /! path by
		2063	# a new random map path (?random/...) with a seed
		2064	# that depends on the exit object
		2065
		2066	my $rmp = parse_random_map_params $exit->msg;
		2067
		2068	if ($exit->map) {
		2069	$rmp->{region} = $exit->region->name;
		2070	$rmp->{origin_map} = $exit->map->path;
		2071	$rmp->{origin_x} = $exit->x;
		2072	$rmp->{origin_y} = $exit->y;
		2073	}
		2074
		2075	$rmp->{random_seed} ||= $exit->random_seed;
		2076
		2077	my $data = cf::to_json $rmp;
		2078	my $md5 = Digest::MD5::md5_hex $data;
		2079	my $meta = "$RANDOMDIR/$md5.meta";
		2080
		2081	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2082	aio_write $fh, 0, (length $data), $data, 0;
		2083	undef $fh;
		2084	aio_rename "$meta~", $meta;
		2085
		2086	$exit->slaying ("?random/$md5");
		2087	$exit->msg (undef);
		2088	}
		2089	}
		2090
		2091	sub cf::object::player::enter_exit {
		2092	my ($self, $exit) = @_;
		2093
		2094	return unless $self->type == cf::PLAYER;
		2095
		2096	if ($exit->slaying eq "/!") {
		2097	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2098	# the problem is that $exit might not survive long enough
		2099	# so it needs to be done right now, right here
		2100	cf::sync_job { prepare_random_map $exit };
		2101	}
		2102
		2103	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2104	my $hp = $exit->stats->hp;
		2105	my $sp = $exit->stats->sp;
		2106
		2107	$self->enter_link;
		2108
		2109	(async {
		2110	$self->deactivate_recursive; # just to be sure
		2111	unless (eval {
		2112	$self->goto ($slaying, $hp, $sp);
		2113
		2114	1;
		2115	}) {
		2116	$self->message ("Something went wrong deep within the crossfire server. "
		2117	. "I'll try to bring you back to the map you were before. "
		2118	. "Please report this to the dungeon master!",
		2119	cf::NDI_UNIQUE | cf::NDI_RED);
		2120
		2121	warn "ERROR in enter_exit: $@";
		2122	$self->leave_link;
		2123	}
		2124	})->prio (1);
		2125	}
		2126
943	=head3 cf::client	2127	=head3 cf::client
944		2128
945	=over 4	2129	=over 4
946		2130
947	=item $client->send_drawinfo ($text, $flags)	2131	=item $client->send_drawinfo ($text, $flags)
…		…
953		2137
954	sub cf::client::send_drawinfo {	2138	sub cf::client::send_drawinfo {
955	my ($self, $text, $flags) = @_;	2139	my ($self, $text, $flags) = @_;
956		2140
957	utf8::encode $text;	2141	utf8::encode $text;
958	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2142	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
959	}	2143	}
960		2144
		2145	=item $client->ext_event ($type, %msg)
		2146
		2147	Sends an exti event to the client.
		2148
		2149	=cut
		2150
		2151	sub cf::client::ext_event($$%) {
		2152	my ($self, $type, %msg) = @_;
		2153
		2154	$msg{msgtype} = "event_$type";
		2155	$self->send_packet ("ext " . cf::to_json \%msg);
		2156	}
961		2157
962	=item $success = $client->query ($flags, "text", \&cb)	2158	=item $success = $client->query ($flags, "text", \&cb)
963		2159
964	Queues a query to the client, calling the given callback with	2160	Queues a query to the client, calling the given callback with
965	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2161	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
990	on_reply => sub {	2186	on_reply => sub {
991	my ($ns, $msg) = @_;	2187	my ($ns, $msg) = @_;
992		2188
993	# this weird shuffling is so that direct followup queries	2189	# this weird shuffling is so that direct followup queries
994	# get handled first	2190	# get handled first
995	my $queue = delete $ns->{query_queue};	2191	my $queue = delete $ns->{query_queue}
		2192	or return; # be conservative, not sure how that can happen, but we saw a crash here
996		2193
997	(shift @$queue)->[1]->($msg);	2194	(shift @$queue)->[1]->($msg);
		2195	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
998		2196
999	push @{ $ns->{query_queue} }, @$queue;	2197	push @{ $ns->{query_queue} }, @$queue;
1000		2198
1001	if (@{ $ns->{query_queue} } == @$queue) {	2199	if (@{ $ns->{query_queue} } == @$queue) {
1002	if (@$queue) {	2200	if (@$queue) {
…		…
1006	}	2204	}
1007	}	2205	}
1008	},	2206	},
1009	);	2207	);
1010		2208
1011	=item $client->coro (\&cb)	2209	=item $client->async (\&cb)
1012		2210
1013	Create a new coroutine, running the specified callback. The coroutine will	2211	Create a new coroutine, running the specified callback. The coroutine will
1014	be automatically cancelled when the client gets destroyed (e.g. on logout,	2212	be automatically cancelled when the client gets destroyed (e.g. on logout,
1015	or loss of connection).	2213	or loss of connection).
1016		2214
1017	=cut	2215	=cut
1018		2216
1019	sub cf::client::coro {	2217	sub cf::client::async {
1020	my ($self, $cb) = @_;	2218	my ($self, $cb) = @_;
1021		2219
1022	my $coro; $coro = async {	2220	my $coro = &Coro::async ($cb);
1023	eval {
1024	$cb->();
1025	};
1026	warn $@ if $@;
1027	};
1028		2221
1029	$coro->on_destroy (sub {	2222	$coro->on_destroy (sub {
1030	delete $self->{_coro}{$coro+0};	2223	delete $self->{_coro}{$coro+0};
1031	});	2224	});
1032		2225
…		…
1065		2258
1066	# here we export the classes and methods available to script code	2259	# here we export the classes and methods available to script code
1067		2260
1068	=pod	2261	=pod
1069		2262
1070	The following fucntions and emthods are available within a safe environment:	2263	The following functions and methods are available within a safe environment:
1071		2264
1072	cf::object contr pay_amount pay_player map	2265	cf::object contr pay_amount pay_player map
1073	cf::object::player player	2266	cf::object::player player
1074	cf::player peaceful	2267	cf::player peaceful
1075	cf::map trigger	2268	cf::map trigger
…		…
1160	#############################################################################	2353	#############################################################################
1161		2354
1162	=head2 EXTENSION DATABASE SUPPORT	2355	=head2 EXTENSION DATABASE SUPPORT
1163		2356
1164	Crossfire maintains a very simple database for extension use. It can	2357	Crossfire maintains a very simple database for extension use. It can
1165	currently store anything that can be serialised using Storable, which	2358	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1166	excludes objects.	2359	convert to/from binary).
1167		2360
1168	The parameter C<$family> should best start with the name of the extension	2361	The parameter C<$family> should best start with the name of the extension
1169	using it, it should be unique.	2362	using it, it should be unique.
1170		2363
1171	=over 4	2364	=over 4
1172		2365
1173	=item $hashref = cf::db_get $family
1174
1175	Return a hashref for use by the extension C<$family>, which can be
1176	modified. After modifications, you have to call C<cf::db_dirty> or
1177	C<cf::db_sync>.
1178
1179	=item $value = cf::db_get $family => $key	2366	=item $value = cf::db_get $family => $key
1180		2367
1181	Returns a single value from the database	2368	Returns a single value from the database.
1182
1183	=item cf::db_put $family => $hashref
1184
1185	Stores the given family hashref into the database. Updates are delayed, if
1186	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1187		2369
1188	=item cf::db_put $family => $key => $value	2370	=item cf::db_put $family => $key => $value
1189		2371
1190	Stores the given C<$value> in the family hash. Updates are delayed, if you	2372	Stores the given C<$value> in the family.
1191	want the data to be synced to disk immediately, use C<cf::db_sync>.
1192
1193	=item cf::db_dirty
1194
1195	Marks the database as dirty, to be updated at a later time.
1196
1197	=item cf::db_sync
1198
1199	Immediately write the database to disk I<if it is dirty>.
1200		2373
1201	=cut	2374	=cut
1202		2375
1203	our $DB;	2376	our $DB;
1204		2377
1205	{	2378	sub db_init {
1206	my $path = cf::localdir . "/database.pst";	2379	unless ($DB) {
		2380	$DB = BDB::db_create $DB_ENV;
1207		2381
1208	sub db_load() {	2382	cf::sync_job {
1209	warn "loading database $path\n";#d# remove later	2383	eval {
1210	$DB = stat $path ? Storable::retrieve $path : { };	2384	$DB->set_flags (BDB::CHKSUM);
1211	}
1212		2385
1213	my $pid;	2386	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1214		2387	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1215	sub db_save() {	2388	cf::cleanup "db_open(db): $!" if $!;
1216	warn "saving database $path\n";#d# remove later	2389	};
1217	waitpid $pid, 0 if $pid;	2390	cf::cleanup "db_open(db): $@" if $@;
1218	if (0 == ($pid = fork)) {
1219	$DB->{_meta}{version} = 1;
1220	Storable::nstore $DB, "$path~";
1221	rename "$path~", $path;
1222	cf::_exit 0 if defined $pid;
1223	}	2391	};
1224	}
1225
1226	my $dirty;
1227
1228	sub db_sync() {
1229	db_save if $dirty;
1230	undef $dirty;
1231	}
1232
1233	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1234	db_sync;
1235	});	2392	}
		2393	}
1236		2394
1237	sub db_dirty() {
1238	$dirty = 1;
1239	$idle->start;
1240	}
1241
1242	sub db_get($;$) {	2395	sub db_get($$) {
1243	@_ >= 2	2396	my $key = "$_[0]/$_[1]";
1244	? $DB->{$_[0]}{$_[1]}
1245	: ($DB->{$_[0]} ||= { })
1246	}
1247		2397
		2398	cf::sync_job {
		2399	BDB::db_get $DB, undef, $key, my $data;
		2400
		2401	$! ? ()
		2402	: $data
		2403	}
		2404	}
		2405
1248	sub db_put($$;$) {	2406	sub db_put($$$) {
1249	if (@_ >= 3) {	2407	BDB::dbreq_pri 4;
1250	$DB->{$_[0]}{$_[1]} = $_[2];	2408	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1251	} else {	2409	}
1252	$DB->{$_[0]} = $_[1];
1253	}
1254	db_dirty;
1255	}
1256		2410
1257	cf::global->attach (	2411	=item cf::cache $id => [$paths...], $processversion => $process
1258	prio => 10000,	2412
1259	on_cleanup => sub {	2413	Generic caching function that returns the value of the resource $id,
1260	db_sync;	2414	caching and regenerating as required.
		2415
		2416	This function can block.
		2417
		2418	=cut
		2419
		2420	sub cache {
		2421	my ($id, $src, $processversion, $process) = @_;
		2422
		2423	my $meta =
		2424	join "\x00",
		2425	$processversion,
		2426	map {
		2427	aio_stat $_
		2428	and Carp::croak "$_: $!";
		2429
		2430	($_, (stat _)[7,9])
		2431	} @$src;
		2432
		2433	my $dbmeta = db_get cache => "$id/meta";
		2434	if ($dbmeta ne $meta) {
		2435	# changed, we may need to process
		2436
		2437	my @data;
		2438	my $md5;
		2439
		2440	for (0 .. $#$src) {
		2441	0 <= aio_load $src->[$_], $data[$_]
		2442	or Carp::croak "$src->[$_]: $!";
1261	},	2443	}
1262	);	2444
		2445	# if processing is expensive, check
		2446	# checksum first
		2447	if (1) {
		2448	$md5 =
		2449	join "\x00",
		2450	$processversion,
		2451	map {
		2452	Coro::cede;
		2453	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2454	} 0.. $#$src;
		2455
		2456
		2457	my $dbmd5 = db_get cache => "$id/md5";
		2458	if ($dbmd5 eq $md5) {
		2459	db_put cache => "$id/meta", $meta;
		2460
		2461	return db_get cache => "$id/data";
		2462	}
		2463	}
		2464
		2465	my $t1 = Time::HiRes::time;
		2466	my $data = $process->(\@data);
		2467	my $t2 = Time::HiRes::time;
		2468
		2469	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2470
		2471	db_put cache => "$id/data", $data;
		2472	db_put cache => "$id/md5" , $md5;
		2473	db_put cache => "$id/meta", $meta;
		2474
		2475	return $data;
		2476	}
		2477
		2478	db_get cache => "$id/data"
		2479	}
		2480
		2481	=item fork_call { }, $args
		2482
		2483	Executes the given code block with the given arguments in a seperate
		2484	process, returning the results. Everything must be serialisable with
		2485	Coro::Storable. May, of course, block. Note that the executed sub may
		2486	never block itself or use any form of Event handling.
		2487
		2488	=cut
		2489
		2490	sub fork_call(&@) {
		2491	my ($cb, @args) = @_;
		2492
		2493	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2494	# or die "socketpair: $!";
		2495	pipe my $fh1, my $fh2
		2496	or die "pipe: $!";
		2497
		2498	if (my $pid = fork) {
		2499	close $fh2;
		2500
		2501	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2502	$res = Coro::Storable::thaw $res;
		2503
		2504	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2505
		2506	die $$res unless "ARRAY" eq ref $res;
		2507
		2508	return wantarray ? @$res : $res->[-1];
		2509	} else {
		2510	reset_signals;
		2511	local $SIG{__WARN__};
		2512	local $SIG{__DIE__};
		2513	eval {
		2514	close $fh1;
		2515
		2516	my @res = eval { $cb->(@args) };
		2517	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2518	};
		2519
		2520	warn $@ if $@;
		2521	_exit 0;
		2522	}
1263	}	2523	}
1264		2524
1265	#############################################################################	2525	#############################################################################
1266	# the server's main()	2526	# the server's init and main functions
		2527
		2528	sub load_facedata($) {
		2529	my ($path) = @_;
		2530
		2531	warn "loading facedata from $path\n";
		2532
		2533	my $facedata;
		2534	0 < aio_load $path, $facedata
		2535	or die "$path: $!";
		2536
		2537	$facedata = Coro::Storable::thaw $facedata;
		2538
		2539	$facedata->{version} == 2
		2540	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2541
		2542	{
		2543	my $faces = $facedata->{faceinfo};
		2544
		2545	while (my ($face, $info) = each %$faces) {
		2546	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2547	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2548	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2549	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2550	Coro::cede;
		2551	}
		2552
		2553	while (my ($face, $info) = each %$faces) {
		2554	next unless $info->{smooth};
		2555	my $idx = cf::face::find $face
		2556	or next;
		2557	if (my $smooth = cf::face::find $info->{smooth}) {
		2558	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2559	} else {
		2560	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2561	}
		2562	Coro::cede;
		2563	}
		2564	}
		2565
		2566	{
		2567	my $anims = $facedata->{animinfo};
		2568
		2569	while (my ($anim, $info) = each %$anims) {
		2570	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2571	Coro::cede;
		2572	}
		2573
		2574	cf::anim::invalidate_all; # d'oh
		2575	}
		2576
		2577	1
		2578	}
		2579
		2580	sub reload_regions {
		2581	load_resource_file "$MAPDIR/regions"
		2582	or die "unable to load regions file\n";
		2583	}
		2584
		2585	sub reload_facedata {
		2586	load_facedata "$DATADIR/facedata"
		2587	or die "unable to load facedata\n";
		2588	}
		2589
		2590	sub reload_archetypes {
		2591	load_resource_file "$DATADIR/archetypes"
		2592	or die "unable to load archetypes\n";
		2593	}
		2594
		2595	sub reload_treasures {
		2596	load_resource_file "$DATADIR/treasures"
		2597	or die "unable to load treasurelists\n";
		2598	}
		2599
		2600	sub reload_resources {
		2601	warn "reloading resource files...\n";
		2602
		2603	reload_regions;
		2604	reload_facedata;
		2605	#reload_archetypes;#d#
		2606	reload_archetypes;
		2607	reload_treasures;
		2608
		2609	warn "finished reloading resource files\n";
		2610	}
		2611
		2612	sub init {
		2613	reload_resources;
		2614	}
1267		2615
1268	sub cfg_load {	2616	sub cfg_load {
1269	open my $fh, "<:utf8", cf::confdir . "/config"	2617	open my $fh, "<:utf8", "$CONFDIR/config"
1270	or return;	2618	or return;
1271		2619
1272	local $/;	2620	local $/;
1273	*CFG = YAML::Syck::Load <$fh>;	2621	*CFG = YAML::Syck::Load <$fh>;
		2622
		2623	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2624
		2625	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2626	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2627
		2628	if (exists $CFG{mlockall}) {
		2629	eval {
		2630	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2631	and die "WARNING: m(un)lockall failed: $!\n";
		2632	};
		2633	warn $@ if $@;
		2634	}
1274	}	2635	}
1275		2636
1276	sub main {	2637	sub main {
		2638	# we must not ever block the main coroutine
		2639	local $Coro::idle = sub {
		2640	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2641	(async {
		2642	Event::one_event;
		2643	})->prio (Coro::PRIO_MAX);
		2644	};
		2645
1277	cfg_load;	2646	cfg_load;
1278	db_load;	2647	db_init;
1279	load_extensions;	2648	load_extensions;
		2649
		2650	$TICK_WATCHER->start;
1280	Event::loop;	2651	Event::loop;
1281	}	2652	}
1282		2653
1283	#############################################################################	2654	#############################################################################
1284	# initialisation	2655	# initialisation and cleanup
1285		2656
1286	sub _perl_reload() {	2657	# install some emergency cleanup handlers
		2658	BEGIN {
		2659	for my $signal (qw(INT HUP TERM)) {
		2660	Event->signal (
		2661	reentrant => 0,
		2662	data => WF_AUTOCANCEL,
		2663	signal => $signal,
		2664	prio => 0,
		2665	cb => sub {
		2666	cf::cleanup "SIG$signal";
		2667	},
		2668	);
		2669	}
		2670	}
		2671
		2672	sub emergency_save() {
		2673	my $freeze_guard = cf::freeze_mainloop;
		2674
		2675	warn "enter emergency perl save\n";
		2676
		2677	cf::sync_job {
		2678	# use a peculiar iteration method to avoid tripping on perl
		2679	# refcount bugs in for. also avoids problems with players
		2680	# and maps saved/destroyed asynchronously.
		2681	warn "begin emergency player save\n";
		2682	for my $login (keys %cf::PLAYER) {
		2683	my $pl = $cf::PLAYER{$login} or next;
		2684	$pl->valid or next;
		2685	$pl->save;
		2686	}
		2687	warn "end emergency player save\n";
		2688
		2689	warn "begin emergency map save\n";
		2690	for my $path (keys %cf::MAP) {
		2691	my $map = $cf::MAP{$path} or next;
		2692	$map->valid or next;
		2693	$map->save;
		2694	}
		2695	warn "end emergency map save\n";
		2696
		2697	warn "begin emergency database checkpoint\n";
		2698	BDB::db_env_txn_checkpoint $DB_ENV;
		2699	warn "end emergency database checkpoint\n";
		2700	};
		2701
		2702	warn "leave emergency perl save\n";
		2703	}
		2704
		2705	sub post_cleanup {
		2706	my ($make_core) = @_;
		2707
		2708	warn Carp::longmess "post_cleanup backtrace"
		2709	if $make_core;
		2710	}
		2711
		2712	sub do_reload_perl() {
1287	# can/must only be called in main	2713	# can/must only be called in main
1288	if ($Coro::current != $Coro::main) {	2714	if ($Coro::current != $Coro::main) {
1289	warn "can only reload from main coroutine\n";	2715	warn "can only reload from main coroutine";
1290	return;	2716	return;
1291	}	2717	}
1292		2718
1293	warn "reloading...";	2719	warn "reloading...";
1294		2720
1295	local $FREEZE = 1;	2721	warn "entering sync_job";
		2722
		2723	cf::sync_job {
		2724	cf::write_runtime; # external watchdog should not bark
1296	cf::emergency_save;	2725	cf::emergency_save;
		2726	cf::write_runtime; # external watchdog should not bark
1297		2727
1298	eval {	2728	warn "syncing database to disk";
		2729	BDB::db_env_txn_checkpoint $DB_ENV;
		2730
1299	# if anything goes wrong in here, we should simply crash as we already saved	2731	# if anything goes wrong in here, we should simply crash as we already saved
1300		2732
1301	# cancel all watchers	2733	warn "cancelling all WF_AUTOCANCEL watchers";
1302	for (Event::all_watchers) {	2734	for (Event::all_watchers) {
1303	$_->cancel if $_->data & WF_AUTOCANCEL;	2735	$_->cancel if $_->data & WF_AUTOCANCEL;
1304	}	2736	}
1305		2737
		2738	warn "flushing outstanding aio requests";
		2739	for (;;) {
		2740	BDB::flush;
		2741	IO::AIO::flush;
		2742	Coro::cede;
		2743	last unless IO::AIO::nreqs || BDB::nreqs;
		2744	warn "iterate...";
		2745	}
		2746
		2747	++$RELOAD;
		2748
1306	# cancel all extension coros	2749	warn "cancelling all extension coros";
1307	$_->cancel for values %EXT_CORO;	2750	$_->cancel for values %EXT_CORO;
1308	%EXT_CORO = ();	2751	%EXT_CORO = ();
1309		2752
1310	# unload all extensions	2753	warn "removing commands";
1311	for (@exts) {	2754	%COMMAND = ();
		2755
		2756	warn "removing ext commands";
		2757	%EXTCMD = ();
		2758
		2759	warn "unloading/nuking all extensions";
		2760	for my $pkg (@EXTS) {
1312	warn "unloading <$_>";	2761	warn "... unloading $pkg";
1313	unload_extension $_;	2762
		2763	if (my $cb = $pkg->can ("unload")) {
		2764	eval {
		2765	$cb->($pkg);
		2766	1
		2767	} or warn "$pkg unloaded, but with errors: $@";
1314	}	2768	}
1315		2769
		2770	warn "... nuking $pkg";
		2771	Symbol::delete_package $pkg;
		2772	}
		2773
1316	# unload all modules loaded from $LIBDIR	2774	warn "unloading all perl modules loaded from $LIBDIR";
1317	while (my ($k, $v) = each %INC) {	2775	while (my ($k, $v) = each %INC) {
1318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2776	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1319		2777
1320	warn "removing <$k>";	2778	warn "... unloading $k";
1321	delete $INC{$k};	2779	delete $INC{$k};
1322		2780
1323	$k =~ s/\.pm$//;	2781	$k =~ s/\.pm$//;
1324	$k =~ s/\//::/g;	2782	$k =~ s/\//::/g;
1325		2783
…		…
1328	}	2786	}
1329		2787
1330	Symbol::delete_package $k;	2788	Symbol::delete_package $k;
1331	}	2789	}
1332		2790
1333	# sync database to disk
1334	cf::db_sync;
1335	IO::AIO::flush;
1336
1337	# get rid of safe::, as good as possible	2791	warn "getting rid of safe::, as good as possible";
1338	Symbol::delete_package "safe::$_"	2792	Symbol::delete_package "safe::$_"
1339	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2793	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1340		2794
1341	# remove register_script_function callbacks
1342	# TODO
1343
1344	# unload cf.pm "a bit"	2795	warn "unloading cf.pm \"a bit\"";
1345	delete $INC{"cf.pm"};	2796	delete $INC{"cf.pm"};
		2797	delete $INC{"cf/pod.pm"};
1346		2798
1347	# don't, removes xs symbols, too,	2799	# don't, removes xs symbols, too,
1348	# and global variables created in xs	2800	# and global variables created in xs
1349	#Symbol::delete_package __PACKAGE__;	2801	#Symbol::delete_package __PACKAGE__;
1350		2802
1351	# reload cf.pm	2803	warn "unload completed, starting to reload now";
		2804
1352	warn "reloading cf.pm";	2805	warn "reloading cf.pm";
1353	require cf;	2806	require cf;
1354	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2807	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1355		2808
1356	# load config and database again	2809	warn "loading config and database again";
1357	cf::cfg_load;	2810	cf::cfg_load;
1358	cf::db_load;
1359		2811
1360	# load extensions
1361	warn "load extensions";	2812	warn "loading extensions";
1362	cf::load_extensions;	2813	cf::load_extensions;
1363		2814
1364	# reattach attachments to objects	2815	warn "reattaching attachments to objects/players";
1365	warn "reattach";	2816	_global_reattach; # objects, sockets
1366	_global_reattach;	2817	warn "reattaching attachments to maps";
1367	};	2818	reattach $_ for values %MAP;
		2819	warn "reattaching attachments to players";
		2820	reattach $_ for values %PLAYER;
1368		2821
1369	if ($@) {	2822	warn "leaving sync_job";
		2823
		2824	1
		2825	} or do {
1370	warn $@;	2826	warn $@;
1371	warn "error while reloading, exiting.";	2827	warn "error while reloading, exiting.";
1372	exit 1;	2828	exit 1;
1373	}	2829	};
1374		2830
1375	warn "reloaded successfully";	2831	warn "reloaded";
1376	};	2832	};
1377		2833
1378	sub perl_reload() {	2834	our $RELOAD_WATCHER; # used only during reload
1379	_perl_reload;
1380	}
1381		2835
1382	register "<global>", __PACKAGE__;	2836	sub reload_perl() {
		2837	# doing reload synchronously and two reloads happen back-to-back,
		2838	# coro crashes during coro_state_free->destroy here.
1383		2839
		2840	$RELOAD_WATCHER ||= Event->timer (
		2841	reentrant => 0,
		2842	after => 0,
		2843	data => WF_AUTOCANCEL,
		2844	cb => sub {
		2845	do_reload_perl;
		2846	undef $RELOAD_WATCHER;
		2847	},
		2848	);
		2849	}
		2850
1384	register_command "perl-reload" => sub {	2851	register_command "reload" => sub {
1385	my ($who, $arg) = @_;	2852	my ($who, $arg) = @_;
1386		2853
1387	if ($who->flag (FLAG_WIZ)) {	2854	if ($who->flag (FLAG_WIZ)) {
1388	$who->message ("reloading...");	2855	$who->message ("reloading server.");
1389	_perl_reload;	2856	async { reload_perl };
1390	}	2857	}
1391	};	2858	};
1392		2859
1393	unshift @INC, $LIBDIR;	2860	unshift @INC, $LIBDIR;
1394		2861
		2862	my $bug_warning = 0;
		2863
		2864	our @WAIT_FOR_TICK;
		2865	our @WAIT_FOR_TICK_BEGIN;
		2866
		2867	sub wait_for_tick {
		2868	return unless $TICK_WATCHER->is_active;
		2869	return if $Coro::current == $Coro::main;
		2870
		2871	my $signal = new Coro::Signal;
		2872	push @WAIT_FOR_TICK, $signal;
		2873	$signal->wait;
		2874	}
		2875
		2876	sub wait_for_tick_begin {
		2877	return unless $TICK_WATCHER->is_active;
		2878	return if $Coro::current == $Coro::main;
		2879
		2880	my $signal = new Coro::Signal;
		2881	push @WAIT_FOR_TICK_BEGIN, $signal;
		2882	$signal->wait;
		2883	}
		2884
		2885	my $min = 1e6;#d#
		2886	my $avg = 10;
1395	$TICK_WATCHER = Event->timer (	2887	$TICK_WATCHER = Event->timer (
1396	reentrant => 0,	2888	reentrant => 0,
		2889	parked => 1,
1397	prio => 0,	2890	prio => 0,
1398	at => $NEXT_TICK || $TICK,	2891	at => $NEXT_TICK || $TICK,
1399	data => WF_AUTOCANCEL,	2892	data => WF_AUTOCANCEL,
1400	cb => sub {	2893	cb => sub {
1401	unless ($FREEZE) {	2894	if ($Coro::current != $Coro::main) {
		2895	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2896	unless ++$bug_warning > 10;
		2897	return;
		2898	}
		2899
		2900	$NOW = $tick_start = Event::time;
		2901
1402	cf::server_tick; # one server iteration	2902	cf::server_tick; # one server iteration
1403	$RUNTIME += $TICK;	2903
		2904	0 && sync_job {#d#
		2905	for(1..10) {
		2906	my $t = Event::time;
		2907	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2908	or die;
		2909
		2910	$map->width (50);
		2911	$map->height (50);
		2912	$map->alloc;
		2913	$map->_load_objects ("/tmp/x.map", 1);
		2914	my $t = Event::time - $t;
		2915
		2916	#next unless $t < 0.0013;#d#
		2917	if ($t < $min) {
		2918	$min = $t;
		2919	}
		2920	$avg = $avg * 0.99 + $t * 0.01;
		2921	}
		2922	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2923	exit 0;
		2924	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
1404	}	2925	};
1405		2926
		2927	$RUNTIME += $TICK;
1406	$NEXT_TICK += $TICK;	2928	$NEXT_TICK += $TICK;
1407		2929
		2930	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2931	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2932	Coro::async_pool {
		2933	write_runtime
		2934	or warn "ERROR: unable to write runtime file: $!";
		2935	};
		2936	}
		2937
		2938	# my $AFTER = Event::time;
		2939	# warn $AFTER - $NOW;#d#
		2940
		2941	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2942	$sig->send;
		2943	}
		2944	while (my $sig = shift @WAIT_FOR_TICK) {
		2945	$sig->send;
		2946	}
		2947
		2948	$NOW = Event::time;
		2949
1408	# if we are delayed by four ticks or more, skip them all	2950	# if we are delayed by four ticks or more, skip them all
1409	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2951	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1410		2952
1411	$TICK_WATCHER->at ($NEXT_TICK);	2953	$TICK_WATCHER->at ($NEXT_TICK);
1412	$TICK_WATCHER->start;	2954	$TICK_WATCHER->start;
		2955
		2956	$LOAD = ($NOW - $tick_start) / $TICK;
		2957	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2958
		2959	_post_tick;
		2960
		2961
1413	},	2962	},
1414	);	2963	);
1415		2964
		2965	{
		2966	BDB::max_poll_time $TICK * 0.1;
		2967	$BDB_POLL_WATCHER = Event->io (
		2968	reentrant => 0,
		2969	fd => BDB::poll_fileno,
		2970	poll => 'r',
		2971	prio => 0,
		2972	data => WF_AUTOCANCEL,
		2973	cb => \&BDB::poll_cb,
		2974	);
		2975	BDB::min_parallel 8;
		2976
		2977	BDB::set_sync_prepare {
		2978	my $status;
		2979	my $current = $Coro::current;
		2980	(
		2981	sub {
		2982	$status = $!;
		2983	$current->ready; undef $current;
		2984	},
		2985	sub {
		2986	Coro::schedule while defined $current;
		2987	$! = $status;
		2988	},
		2989	)
		2990	};
		2991
		2992	unless ($DB_ENV) {
		2993	$DB_ENV = BDB::db_env_create;
		2994
		2995	cf::sync_job {
		2996	eval {
		2997	BDB::db_env_open
		2998	$DB_ENV,
		2999	$BDBDIR,
		3000	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3001	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3002	0666;
		3003
		3004	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3005
		3006	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3007	$DB_ENV->set_lk_detect;
		3008	};
		3009
		3010	cf::cleanup "db_env_open(db): $@" if $@;
		3011	};
		3012	}
		3013	}
		3014
		3015	{
		3016	IO::AIO::min_parallel 8;
		3017
		3018	undef $Coro::AIO::WATCHER;
1416	IO::AIO::max_poll_time $TICK * 0.2;	3019	IO::AIO::max_poll_time $TICK * 0.1;
1417		3020	$AIO_POLL_WATCHER = Event->io (
1418	Event->io (fd => IO::AIO::poll_fileno,	3021	reentrant => 0,
1419	poll => 'r',
1420	prio => 5,
1421	data => WF_AUTOCANCEL,	3022	data => WF_AUTOCANCEL,
		3023	fd => IO::AIO::poll_fileno,
		3024	poll => 'r',
		3025	prio => 6,
1422	cb => \&IO::AIO::poll_cb);	3026	cb => \&IO::AIO::poll_cb,
		3027	);
		3028	}
1423		3029
1424	# we must not ever block the main coroutine	3030	my $_log_backtrace;
1425	$Coro::idle = sub {	3031
1426	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3032	sub _log_backtrace {
1427	warn "FATAL: Coro::idle was called, major BUG\n";	3033	my ($msg, @addr) = @_;
1428	(Coro::unblock_sub {	3034
1429	Event::one_event;	3035	$msg =~ s/\n//;
1430	})->();	3036
1431	};	3037	# limit the # of concurrent backtraces
		3038	if ($_log_backtrace < 2) {
		3039	++$_log_backtrace;
		3040	async {
		3041	my @bt = fork_call {
		3042	@addr = map { sprintf "%x", $_ } @addr;
		3043	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3044	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3045	or die "addr2line: $!";
		3046
		3047	my @funcs;
		3048	my @res = <$fh>;
		3049	chomp for @res;
		3050	while (@res) {
		3051	my ($func, $line) = splice @res, 0, 2, ();
		3052	push @funcs, "[$func] $line";
		3053	}
		3054
		3055	@funcs
		3056	};
		3057
		3058	LOG llevInfo, "[ABT] $msg\n";
		3059	LOG llevInfo, "[ABT] $_\n" for @bt;
		3060	--$_log_backtrace;
		3061	};
		3062	} else {
		3063	LOG llevInfo, "[ABT] $msg\n";
		3064	LOG llevInfo, "[ABT] [suppressed]\n";
		3065	}
		3066	}
		3067
		3068	# load additional modules
		3069	use cf::pod;
		3070
		3071	END { cf::emergency_save }
1432		3072
1433	1	3073	1
1434		3074

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