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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.105 by root, Sun Dec 31 17:17:23 2006 UTC vs.
Revision 1.273 by root, Mon Jun 4 12:19:08 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
176	JSON::Syck::Dump $_[0]
177	}
178		252
179	# main coro must never ever "block" except in Event	253	=item my $lock = cf::lock_acquire $string
180	# sync_job ensures this by running the job in a coroutine	254
181	# and waiting in Event while the server is otherwise frozen	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} }, $Coro::current;
		277	Coro::schedule;
		278	}
		279	}
		280
		281	sub lock_acquire($) {
		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	$guard
		309	}
		310
		311	=item cf::async { BLOCK }
		312
		313	Currently the same as Coro::async_pool, meaning you cannot use
		314	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		315	thing you are allowed to do is call C<prio> on it.
		316
		317	=cut
		318
		319	BEGIN { *async = \&Coro::async_pool }
		320
		321	=item cf::sync_job { BLOCK }
		322
		323	The design of crossfire+ requires that the main coro ($Coro::main) is
		324	always able to handle events or runnable, as crossfire+ is only partly
		325	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		326
		327	If it must be done, put the blocking parts into C<sync_job>. This will run
		328	the given BLOCK in another coroutine while waiting for the result. The
		329	server will be frozen during this time, so the block should either finish
		330	fast or be very important.
		331
		332	=cut
		333
182	sub sync_job(&) {	334	sub sync_job(&) {
183	my ($job) = @_;	335	my ($job) = @_;
184		336
185	my $busy = 1;
186	my @res;
187
188	local $FREEZE = 1;
189
190	my $coro = Coro::async {
191	@res = eval { $job->() };
192	warn $@ if $@;
193	undef $busy;
194	};
195
196	if ($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;
197	$coro->prio (Coro::PRIO_MAX);	354	})->prio (Coro::PRIO_MAX);
		355
198	while ($busy) {	356	while ($busy) {
199	Coro::cede_notself;	357	Coro::cede or Event::one_event;
200	Event::one_event unless Coro::nready;
201	}	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]
202	} else {	368	} else {
203	$coro->join;	369	# we are in another coroutine, how wonderful, everything just works
		370
		371	$job->()
204	}	372	}
205
206	wantarray ? @res : $res[0]
207	}	373	}
208		374
209	=item $coro = cf::coro { BLOCK }	375	=item $coro = cf::async_ext { BLOCK }
210		376
211	Creates and returns a new coro. This coro is automcatially being canceled	377	Like async, but this coro is automatically being canceled when the
212	when the extension calling this is being unloaded.	378	extension calling this is being unloaded.
213		379
214	=cut	380	=cut
215		381
216	sub coro(&) {	382	sub async_ext(&) {
217	my $cb = shift;	383	my $cb = shift;
218		384
219	my $coro; $coro = async {	385	my $coro = &Coro::async ($cb);
220	eval {
221	$cb->();
222	};
223	warn $@ if $@;
224	};
225		386
226	$coro->on_destroy (sub {	387	$coro->on_destroy (sub {
227	delete $EXT_CORO{$coro+0};	388	delete $EXT_CORO{$coro+0};
228	});	389	});
229	$EXT_CORO{$coro+0} = $coro;	390	$EXT_CORO{$coro+0} = $coro;
230		391
231	$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~", $runtime
		426	and return;
		427
		428	warn "runtime file written.\n";#d#
		429
		430	1
		431	}
		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
232	}	442	}
233		443
234	=back	444	=back
235		445
236	=cut	446	=cut
…		…
367	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
368	our @CB_MAP = ();	578	our @CB_MAP = ();
369		579
370	my %attachment;	580	my %attachment;
371		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
372	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
373	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
374		590
375	use sort 'stable';	591	use sort 'stable';
376		592
…		…
410	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
411		627
412	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
413	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
414	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
415	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
416		632
417	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
418	my $pkg = shift @arg;	634	my $pkg = shift @arg;
419		635
420	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
461	if (ref $_[0]) {	677	if (ref $_[0]) {
462	_object_attach @_;	678	_object_attach @_;
463	} else {	679	} else {
464	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
465	}	681	}
		682	_recalc_want;
466	};	683	};
467		684
468	# all those should be optimised	685	# all those should be optimised
469	sub cf::attachable::detach {	686	sub cf::attachable::detach {
470	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
473	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
474	reattach ($obj);	691	reattach ($obj);
475	} else {	692	} else {
476	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
477	}	694	}
		695	_recalc_want;
478	};	696	};
479		697
480	sub cf::attachable::attached {	698	sub cf::attachable::attached {
481	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
482		700
…		…
547	# object support	765	# object support
548		766
549	sub reattach {	767	sub reattach {
550	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
551	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
552		772
553	my $registry = $obj->registry;	773	my $registry = $obj->registry;
554		774
555	@$registry = ();	775	@$registry = ();
556		776
…		…
603	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
604		824
605	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
606	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
607	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
608	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
609	close $fh;	829	close $fh;
610		830
611	if (@$objs) {	831	if (@$objs) {
612	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) {
613	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
614	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
615	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
616	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
617	close $fh;	837	close $fh;
618	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
619	}	839	}
620	} else {	840	} else {
621	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
649	or return;	869	or return;
650		870
651	unless (aio_stat "$filename.pst") {	871	unless (aio_stat "$filename.pst") {
652	(aio_load "$filename.pst", $av) >= 0	872	(aio_load "$filename.pst", $av) >= 0
653	or return;	873	or return;
654	$av = eval { (Storable::thaw <$av>)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
655	}	875	}
656		876
		877	warn sprintf "loading %s (%d)\n",
		878	$filename, length $data, scalar @{$av || []};#d#
657	return ($data, $av);	879	return ($data, $av);
658	}	880	}
659		881
660	#############################################################################	882	#############################################################################
661	# command handling &c	883	# command handling &c
…		…
686	=cut	908	=cut
687		909
688	sub register_extcmd {	910	sub register_extcmd {
689	my ($name, $cb) = @_;	911	my ($name, $cb) = @_;
690		912
691	my $caller = caller;
692	#warn "registering extcmd '$name' to '$caller'";
693
694	$EXTCMD{$name} = [$cb, $caller];	913	$EXTCMD{$name} = $cb;
695	}	914	}
696		915
697	cf::player->attach (	916	cf::player->attach (
698	on_command => sub {	917	on_command => sub {
699	my ($pl, $name, $params) = @_;	918	my ($pl, $name, $params) = @_;
…		…
712		931
713	my $msg = eval { from_json $buf };	932	my $msg = eval { from_json $buf };
714		933
715	if (ref $msg) {	934	if (ref $msg) {
716	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
717	if (my %reply = $cb->[0]->($pl, $msg)) {	936	if (my %reply = $cb->($pl, $msg)) {
718	$pl->ext_reply ($msg->{msgid}, %reply);	937	$pl->ext_reply ($msg->{msgid}, %reply);
719	}	938	}
720	}	939	}
721	} else {	940	} else {
722	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
724		943
725	cf::override;	944	cf::override;
726	},	945	},
727	);	946	);
728		947
729	sub register {
730	my ($base, $pkg) = @_;
731
732	#TODO
733	}
734
735	sub load_extension {	948	sub load_extension {
736	my ($path) = @_;	949	my ($path) = @_;
737		950
738	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	951	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
739	my $base = $1;	952	my $base = $1;
740	my $pkg = $1;	953	my $pkg = $1;
741	$pkg =~ s/[^[:word:]]/_/g;	954	$pkg =~ s/[^[:word:]]/_/g;
742	$pkg = "ext::$pkg";	955	$pkg = "ext::$pkg";
743		956
744	warn "loading '$path' into '$pkg'\n";	957	warn "... loading '$path' into '$pkg'\n";
745		958
746	open my $fh, "<:utf8", $path	959	open my $fh, "<:utf8", $path
747	or die "$path: $!";	960	or die "$path: $!";
748		961
749	my $source =	962	my $source =
750	"package $pkg; use strict; use utf8;\n"	963	"package $pkg; use strict; use utf8;\n"
751	. "#line 1 \"$path\"\n{\n"	964	. "#line 1 \"$path\"\n{\n"
752	. (do { local $/; <$fh> })	965	. (do { local $/; <$fh> })
753	. "\n};\n1";	966	. "\n};\n1";
754		967
755	eval $source	968	unless (eval $source) {
756	or die $@ ? "$path: $@\n"	969	my $msg = $@ ? "$path: $@\n"
757	: "extension disabled.\n";	970	: "extension disabled.\n";
758		971	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
759	push @exts, $pkg;	972	warn $@;
760	$ext_pkg{$base} = $pkg;	973	warn "mandatory extension failed to load, exiting.\n";
761		974	exit 1;
762	# no strict 'refs';	975	}
763	# @{"$pkg\::ISA"} = ext::;	976	die $@;
764
765	register $base, $pkg;
766	}
767
768	sub unload_extension {
769	my ($pkg) = @_;
770
771	warn "removing extension $pkg\n";
772
773	# remove hooks
774	#TODO
775	# for my $idx (0 .. $#PLUGIN_EVENT) {
776	# delete $hook[$idx]{$pkg};
777	# }	977	}
778		978
779	# remove commands	979	push @EXTS, $pkg;
780	for my $name (keys %COMMAND) {
781	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
782
783	if (@cb) {
784	$COMMAND{$name} = \@cb;
785	} else {
786	delete $COMMAND{$name};
787	}
788	}
789
790	# remove extcmds
791	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
792	delete $EXTCMD{$name};
793	}
794
795	if (my $cb = $pkg->can ("unload")) {
796	eval {
797	$cb->($pkg);
798	1
799	} or warn "$pkg unloaded, but with errors: $@";
800	}
801
802	Symbol::delete_package $pkg;
803	}	980	}
804		981
805	sub load_extensions {	982	sub load_extensions {
806	for my $ext (<$LIBDIR/*.ext>) {	983	for my $ext (<$LIBDIR/*.ext>) {
807	next unless -r $ext;	984	next unless -r $ext;
…		…
811	} or warn "$ext not loaded: $@";	988	} or warn "$ext not loaded: $@";
812	}	989	}
813	}	990	}
814		991
815	#############################################################################	992	#############################################################################
816	# load/save/clean perl data associated with a map
817		993
818	*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	local $self->{deny_save};
		1311	local $self->{deny_reset};
		1312
		1313	$self->SUPER::thawer_merge ($merge);
		1314	}
		1315
		1316	sub normalise {
		1317	my ($path, $base) = @_;
		1318
		1319	$path = "$path"; # make sure its a string
		1320
		1321	$path =~ s/\.map$//;
		1322
		1323	# map plan:
		1324	#
		1325	# /! non-realised random map exit (special hack!)
		1326	# {... are special paths that are not being touched
		1327	# ?xxx/... are special absolute paths
		1328	# ?random/... random maps
		1329	# /... normal maps
		1330	# ~user/... per-player map of a specific user
		1331
		1332	$path =~ s/$PATH_SEP/\//go;
		1333
		1334	# treat it as relative path if it starts with
		1335	# something that looks reasonable
		1336	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1337	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1338
		1339	$base =~ s{[^/]+/?$}{};
		1340	$path = "$base/$path";
		1341	}
		1342
		1343	for ($path) {
		1344	redo if s{//}{/};
		1345	redo if s{/\.?/}{/};
		1346	redo if s{/[^/]+/\.\./}{/};
		1347	}
		1348
		1349	$path
		1350	}
		1351
		1352	sub new_from_path {
		1353	my (undef, $path, $base) = @_;
		1354
		1355	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1356
		1357	$path = normalise $path, $base;
		1358
		1359	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1360	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1361	my $self = bless cf::map::new, $pkg;
		1362	$self->{path} = $path; $self->path ($path);
		1363	$self->init; # pass $1 etc.
		1364	return $self;
		1365	}
		1366	}
		1367
		1368	Carp::carp "unable to resolve path '$path' (base '$base').";
		1369	()
		1370	}
		1371
		1372	sub init {
		1373	my ($self) = @_;
		1374
		1375	$self
		1376	}
		1377
		1378	sub as_string {
		1379	my ($self) = @_;
		1380
		1381	"$self->{path}"
		1382	}
		1383
		1384	# the displayed name, this is a one way mapping
		1385	sub visible_name {
		1386	&as_string
		1387	}
		1388
		1389	# the original (read-only) location
		1390	sub load_path {
		1391	my ($self) = @_;
		1392
		1393	"$MAPDIR/$self->{path}.map"
		1394	}
		1395
		1396	# the temporary/swap location
		1397	sub save_path {
		1398	my ($self) = @_;
		1399
		1400	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1401	"$TMPDIR/$path.map"
		1402	}
		1403
		1404	# the unique path, undef == no special unique path
		1405	sub uniq_path {
		1406	my ($self) = @_;
		1407
		1408	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1409	"$UNIQUEDIR/$path"
		1410	}
		1411
		1412	# and all this just because we cannot iterate over
		1413	# all maps in C++...
		1414	sub change_all_map_light {
		1415	my ($change) = @_;
		1416
		1417	$_->change_map_light ($change)
		1418	for grep $_->outdoor, values %cf::MAP;
		1419	}
		1420
		1421	sub unlink_save {
		1422	my ($self) = @_;
		1423
		1424	utf8::encode (my $save = $self->save_path);
		1425	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1426	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1427	}
		1428
		1429	sub load_header_from($) {
		1430	my ($self, $path) = @_;
		1431
		1432	utf8::encode $path;
		1433	#aio_open $path, O_RDONLY, 0
		1434	# or return;
		1435
		1436	$self->_load_header ($path)
		1437	or return;
		1438
		1439	$self->{load_path} = $path;
		1440
		1441	1
		1442	}
		1443
		1444	sub load_header_orig {
		1445	my ($self) = @_;
		1446
		1447	$self->load_header_from ($self->load_path)
		1448	}
		1449
		1450	sub load_header_temp {
		1451	my ($self) = @_;
		1452
		1453	$self->load_header_from ($self->save_path)
		1454	}
		1455
		1456	sub prepare_temp {
		1457	my ($self) = @_;
		1458
		1459	$self->last_access ((delete $self->{last_access})
		1460	|| $cf::RUNTIME); #d#
		1461	# safety
		1462	$self->{instantiate_time} = $cf::RUNTIME
		1463	if $self->{instantiate_time} > $cf::RUNTIME;
		1464	}
		1465
		1466	sub prepare_orig {
		1467	my ($self) = @_;
		1468
		1469	$self->{load_original} = 1;
		1470	$self->{instantiate_time} = $cf::RUNTIME;
		1471	$self->last_access ($cf::RUNTIME);
		1472	$self->instantiate;
		1473	}
		1474
		1475	sub load_header {
		1476	my ($self) = @_;
		1477
		1478	if ($self->load_header_temp) {
		1479	$self->prepare_temp;
		1480	} else {
		1481	$self->load_header_orig
		1482	or return;
		1483	$self->prepare_orig;
		1484	}
		1485
		1486	$self->default_region (cf::region::find_by_path $self->{path})
		1487	unless $self->default_region;
		1488
		1489	1
		1490	}
		1491
		1492	sub find;
		1493	sub find {
		1494	my ($path, $origin) = @_;
		1495
		1496	$path = normalise $path, $origin && $origin->path;
		1497
		1498	cf::lock_wait "map_find:$path";
		1499
		1500	$cf::MAP{$path} || do {
		1501	my $guard = cf::lock_acquire "map_find:$path";
		1502	my $map = new_from_path cf::map $path
		1503	or return;
		1504
		1505	$map->{last_save} = $cf::RUNTIME;
		1506
		1507	$map->load_header
		1508	or return;
		1509
		1510	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1511	# doing this can freeze the server in a sync job, obviously
		1512	#$cf::WAIT_FOR_TICK->wait;
		1513	$map->reset;
		1514	undef $guard;
		1515	return find $path;
		1516	}
		1517
		1518	$cf::MAP{$path} = $map
		1519	}
		1520	}
		1521
		1522	sub pre_load { }
		1523	sub post_load { }
		1524
		1525	sub load {
		1526	my ($self) = @_;
		1527
		1528	local $self->{deny_reset} = 1; # loading can take a long time
		1529
		1530	my $path = $self->{path};
		1531
		1532	{
		1533	my $guard = cf::lock_acquire "map_load:$path";
		1534
		1535	return if $self->in_memory != cf::MAP_SWAPPED;
		1536
		1537	$self->in_memory (cf::MAP_LOADING);
		1538
		1539	$self->alloc;
		1540
		1541	$self->pre_load;
		1542	Coro::cede;
		1543
		1544	$self->_load_objects ($self->{load_path}, 1)
		1545	or return;
		1546
		1547	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1548	if delete $self->{load_original};
		1549
		1550	if (my $uniq = $self->uniq_path) {
		1551	utf8::encode $uniq;
		1552	if (aio_open $uniq, O_RDONLY, 0) {
		1553	$self->clear_unique_items;
		1554	$self->_load_objects ($uniq, 0);
		1555	}
		1556	}
		1557
		1558	Coro::cede;
		1559	# now do the right thing for maps
		1560	$self->link_multipart_objects;
		1561	$self->difficulty ($self->estimate_difficulty)
		1562	unless $self->difficulty;
		1563	Coro::cede;
		1564
		1565	unless ($self->{deny_activate}) {
		1566	$self->decay_objects;
		1567	$self->fix_auto_apply;
		1568	$self->update_buttons;
		1569	Coro::cede;
		1570	$self->set_darkness_map;
		1571	Coro::cede;
		1572	$self->activate;
		1573	}
		1574
		1575	$self->in_memory (cf::MAP_IN_MEMORY);
		1576	}
		1577
		1578	$self->post_load;
		1579	}
		1580
		1581	sub customise_for {
		1582	my ($self, $ob) = @_;
		1583
		1584	return find "~" . $ob->name . "/" . $self->{path}
		1585	if $self->per_player;
		1586
		1587	$self
		1588	}
		1589
		1590	# find and load all maps in the 3x3 area around a map
		1591	sub load_diag {
819	my ($map) = @_;	1592	my ($map) = @_;
820		1593
821	my $path = $map->tmpname;	1594	my @diag; # diagonal neighbours
822	defined $path or return;
823		1595
824	unlink "$path.pst";	1596	for (0 .. 3) {
825	};	1597	my $neigh = $map->tile_path ($_)
		1598	or next;
		1599	$neigh = find $neigh, $map
		1600	or next;
		1601	$neigh->load;
826		1602
827	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1603	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1604	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1605	}
828		1606
829	#############################################################################	1607	for (@diag) {
830	# load/save perl data associated with player->ob objects	1608	my $neigh = find @$_
831		1609	or next;
832	sub all_objects(@) {	1610	$neigh->load;
833	@_, map all_objects ($_->inv), @_	1611	}
834	}	1612	}
835		1613
836	# TODO: compatibility cruft, remove when no longer needed	1614	sub find_sync {
837	cf::player->attach (	1615	my ($path, $origin) = @_;
838	on_load => sub {
839	my ($pl, $path) = @_;
840		1616
841	for my $o (all_objects $pl->ob) {	1617	cf::sync_job { find $path, $origin }
842	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1618	}
843	$o->set_ob_key_value ("_perl_data");
844		1619
845	%$o = %{ Storable::thaw pack "H*", $value };	1620	sub do_load_sync {
		1621	my ($map) = @_;
		1622
		1623	cf::sync_job { $map->load };
		1624	}
		1625
		1626	our %MAP_PREFETCH;
		1627	our $MAP_PREFETCHER = undef;
		1628
		1629	sub find_async {
		1630	my ($path, $origin) = @_;
		1631
		1632	$path = normalise $path, $origin && $origin->{path};
		1633
		1634	if (my $map = $cf::MAP{$path}) {
		1635	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1636	}
		1637
		1638	undef $MAP_PREFETCH{$path};
		1639	$MAP_PREFETCHER ||= cf::async {
		1640	while (%MAP_PREFETCH) {
		1641	for my $path (keys %MAP_PREFETCH) {
		1642	my $map = find $path
		1643	or next;
		1644	$map->load;
		1645
		1646	delete $MAP_PREFETCH{$path};
846	}	1647	}
847	}	1648	}
		1649	undef $MAP_PREFETCHER;
		1650	};
		1651	$MAP_PREFETCHER->prio (6);
		1652
		1653	()
		1654	}
		1655
		1656	sub save {
		1657	my ($self) = @_;
		1658
		1659	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1660
		1661	$self->{last_save} = $cf::RUNTIME;
		1662
		1663	return unless $self->dirty;
		1664
		1665	my $save = $self->save_path; utf8::encode $save;
		1666	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1667
		1668	$self->{load_path} = $save;
		1669
		1670	return if $self->{deny_save};
		1671
		1672	local $self->{last_access} = $self->last_access;#d#
		1673
		1674	cf::async {
		1675	$_->contr->save for $self->players;
		1676	};
		1677
		1678	if ($uniq) {
		1679	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1680	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1681	} else {
		1682	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
848	},	1683	}
849	);	1684	}
850		1685
851	#############################################################################	1686	sub swap_out {
		1687	my ($self) = @_;
852		1688
853	=head2 CORE EXTENSIONS	1689	# save first because save cedes
		1690	$self->save;
854		1691
855	Functions and methods that extend core crossfire objects.	1692	my $lock = cf::lock_acquire "map_data:" . $self->path;
856		1693
857	=head3 cf::player	1694	return if $self->players;
		1695	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1696	return if $self->{deny_save};
		1697
		1698	$self->clear;
		1699	$self->in_memory (cf::MAP_SWAPPED);
		1700	}
		1701
		1702	sub reset_at {
		1703	my ($self) = @_;
		1704
		1705	# TODO: safety, remove and allow resettable per-player maps
		1706	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1707	return 1e99 if $self->{deny_reset};
		1708
		1709	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1710	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1711
		1712	$time + $to
		1713	}
		1714
		1715	sub should_reset {
		1716	my ($self) = @_;
		1717
		1718	$self->reset_at <= $cf::RUNTIME
		1719	}
		1720
		1721	sub reset {
		1722	my ($self) = @_;
		1723
		1724	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1725
		1726	return if $self->players;
		1727	return if $self->isa ("ext::map_per_player");#d#
		1728
		1729	warn "resetting map ", $self->path;#d#
		1730
		1731	$self->in_memory (cf::MAP_SWAPPED);
		1732
		1733	# need to save uniques path
		1734	unless ($self->{deny_save}) {
		1735	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1736
		1737	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1738	if $uniq;
		1739	}
		1740
		1741	delete $cf::MAP{$self->path};
		1742
		1743	$self->clear;
		1744
		1745	$_->clear_links_to ($self) for values %cf::MAP;
		1746
		1747	$self->unlink_save;
		1748	$self->destroy;
		1749	}
		1750
		1751	my $nuke_counter = "aaaa";
		1752
		1753	sub nuke {
		1754	my ($self) = @_;
		1755
		1756	delete $cf::MAP{$self->path};
		1757
		1758	$self->unlink_save;
		1759
		1760	bless $self, "cf::map";
		1761	delete $self->{deny_reset};
		1762	$self->{deny_save} = 1;
		1763	$self->reset_timeout (1);
		1764	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1765
		1766	$cf::MAP{$self->path} = $self;
		1767
		1768	$self->reset; # polite request, might not happen
		1769	}
		1770
		1771	=item cf::map::unique_maps
		1772
		1773	Returns an arrayref of paths of all shared maps that have
		1774	instantiated unique items. May block.
		1775
		1776	=cut
		1777
		1778	sub unique_maps() {
		1779	my $files = aio_readdir $UNIQUEDIR
		1780	or return;
		1781
		1782	my @paths;
		1783
		1784	for (@$files) {
		1785	utf8::decode $_;
		1786	next if /\.pst$/;
		1787	next unless /^$PATH_SEP/o;
		1788
		1789	push @paths, cf::map::normalise $_;
		1790	}
		1791
		1792	\@paths
		1793	}
		1794
		1795	package cf;
		1796
		1797	=back
		1798
		1799	=head3 cf::object
		1800
		1801	=cut
		1802
		1803	package cf::object;
858		1804
859	=over 4	1805	=over 4
860		1806
861	=item cf::player::exists $login	1807	=item $ob->inv_recursive
862		1808
863	Returns true when the given account exists.	1809	Returns the inventory of the object _and_ their inventories, recursively.
864		1810
865	=cut	1811	=cut
866		1812
867	sub cf::player::exists($) {	1813	sub inv_recursive_;
868	cf::player::find $_[0]	1814	sub inv_recursive_ {
869	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1815	map { $_, inv_recursive_ $_->inv } @_
870	}	1816	}
871		1817
872	=item $player->ext_reply ($msgid, $msgtype, %msg)	1818	sub inv_recursive {
873		1819	inv_recursive_ inv $_[0]
874	Sends an ext reply to the player.
875
876	=cut
877
878	sub cf::player::ext_reply($$$%) {
879	my ($self, $id, %msg) = @_;
880
881	$msg{msgid} = $id;
882
883	$self->send ("ext " . to_json \%msg);
884	}	1820	}
		1821
		1822	package cf;
885		1823
886	=back	1824	=back
887		1825
888	=head3 cf::object::player	1826	=head3 cf::object::player
889		1827
…		…
927	(ref $cf::CFG{"may_$access"}	1865	(ref $cf::CFG{"may_$access"}
928	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1866	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
929	: $cf::CFG{"may_$access"})	1867	: $cf::CFG{"may_$access"})
930	}	1868	}
931		1869
		1870	=item $player_object->enter_link
		1871
		1872	Freezes the player and moves him/her to a special map (C<{link}>).
		1873
		1874	The player should be reasonably safe there for short amounts of time. You
		1875	I<MUST> call C<leave_link> as soon as possible, though.
		1876
		1877	Will never block.
		1878
		1879	=item $player_object->leave_link ($map, $x, $y)
		1880
		1881	Moves the player out of the special C<{link}> map onto the specified
		1882	map. If the map is not valid (or omitted), the player will be moved back
		1883	to the location he/she was before the call to C<enter_link>, or, if that
		1884	fails, to the emergency map position.
		1885
		1886	Might block.
		1887
		1888	=cut
		1889
		1890	sub link_map {
		1891	unless ($LINK_MAP) {
		1892	$LINK_MAP = cf::map::find "{link}"
		1893	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1894	$LINK_MAP->load;
		1895	}
		1896
		1897	$LINK_MAP
		1898	}
		1899
		1900	sub cf::object::player::enter_link {
		1901	my ($self) = @_;
		1902
		1903	$self->deactivate_recursive;
		1904
		1905	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1906
		1907	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1908	if $self->map && $self->map->{path} ne "{link}";
		1909
		1910	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1911	}
		1912
		1913	sub cf::object::player::leave_link {
		1914	my ($self, $map, $x, $y) = @_;
		1915
		1916	return unless $self->contr->active;
		1917
		1918	my $link_pos = delete $self->{_link_pos};
		1919
		1920	unless ($map) {
		1921	# restore original map position
		1922	($map, $x, $y) = @{ $link_pos || [] };
		1923	$map = cf::map::find $map;
		1924
		1925	unless ($map) {
		1926	($map, $x, $y) = @$EMERGENCY_POSITION;
		1927	$map = cf::map::find $map
		1928	or die "FATAL: cannot load emergency map\n";
		1929	}
		1930	}
		1931
		1932	($x, $y) = (-1, -1)
		1933	unless (defined $x) && (defined $y);
		1934
		1935	# use -1 or undef as default coordinates, not 0, 0
		1936	($x, $y) = ($map->enter_x, $map->enter_y)
		1937	if $x <=0 && $y <= 0;
		1938
		1939	$map->load;
		1940	$map->load_diag;
		1941
		1942	return unless $self->contr->active;
		1943	$self->activate_recursive;
		1944
		1945	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		1946	$self->enter_map ($map, $x, $y);
		1947	}
		1948
		1949	=item $player_object->goto ($path, $x, $y[, $check->($map)])
		1950
		1951	Moves the player to the given map-path and coordinates by first freezing
		1952	her, loading and preparing them map, calling the provided $check callback
		1953	that has to return the map if sucecssful, and then unfreezes the player on
		1954	the new (success) or old (failed) map position.
		1955
		1956	=cut
		1957
		1958	our $GOTOGEN;
		1959
		1960	sub cf::object::player::goto {
		1961	my ($self, $path, $x, $y, $check) = @_;
		1962
		1963	# do generation counting so two concurrent goto's will be executed in-order
		1964	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		1965
		1966	$self->enter_link;
		1967
		1968	(async {
		1969	my $map = eval {
		1970	my $map = cf::map::find $path;
		1971
		1972	if ($map) {
		1973	$map = $map->customise_for ($self);
		1974	$map = $check->($map) if $check && $map;
		1975	} else {
		1976	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1977	}
		1978
		1979	$map
		1980	};
		1981
		1982	if ($@) {
		1983	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		1984	LOG llevError | logBacktrace, Carp::longmess $@;
		1985	}
		1986
		1987	if ($gen == $self->{_goto_generation}) {
		1988	delete $self->{_goto_generation};
		1989	$self->leave_link ($map, $x, $y);
		1990	}
		1991	})->prio (1);
		1992	}
		1993
		1994	=item $player_object->enter_exit ($exit_object)
		1995
		1996	=cut
		1997
		1998	sub parse_random_map_params {
		1999	my ($spec) = @_;
		2000
		2001	my $rmp = { # defaults
		2002	xsize => (cf::rndm 15, 40),
		2003	ysize => (cf::rndm 15, 40),
		2004	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2005	#layout => string,
		2006	};
		2007
		2008	for (split /\n/, $spec) {
		2009	my ($k, $v) = split /\s+/, $_, 2;
		2010
		2011	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2012	}
		2013
		2014	$rmp
		2015	}
		2016
		2017	sub prepare_random_map {
		2018	my ($exit) = @_;
		2019
		2020	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2021
		2022	# all this does is basically replace the /! path by
		2023	# a new random map path (?random/...) with a seed
		2024	# that depends on the exit object
		2025
		2026	my $rmp = parse_random_map_params $exit->msg;
		2027
		2028	if ($exit->map) {
		2029	$rmp->{region} = $exit->region->name;
		2030	$rmp->{origin_map} = $exit->map->path;
		2031	$rmp->{origin_x} = $exit->x;
		2032	$rmp->{origin_y} = $exit->y;
		2033	}
		2034
		2035	$rmp->{random_seed} ||= $exit->random_seed;
		2036
		2037	my $data = cf::to_json $rmp;
		2038	my $md5 = Digest::MD5::md5_hex $data;
		2039	my $meta = "$RANDOMDIR/$md5.meta";
		2040
		2041	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2042	aio_write $fh, 0, (length $data), $data, 0;
		2043	undef $fh;
		2044	aio_rename "$meta~", $meta;
		2045
		2046	$exit->slaying ("?random/$md5");
		2047	$exit->msg (undef);
		2048	}
		2049	}
		2050
		2051	sub cf::object::player::enter_exit {
		2052	my ($self, $exit) = @_;
		2053
		2054	return unless $self->type == cf::PLAYER;
		2055
		2056	if ($exit->slaying eq "/!") {
		2057	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2058	# the problem is that $exit might not survive long enough
		2059	# so it needs to be done right now, right here
		2060	cf::sync_job { prepare_random_map $exit };
		2061	}
		2062
		2063	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2064	my $hp = $exit->stats->hp;
		2065	my $sp = $exit->stats->sp;
		2066
		2067	$self->enter_link;
		2068
		2069	(async {
		2070	$self->deactivate_recursive; # just to be sure
		2071	unless (eval {
		2072	$self->goto ($slaying, $hp, $sp);
		2073
		2074	1;
		2075	}) {
		2076	$self->message ("Something went wrong deep within the crossfire server. "
		2077	. "I'll try to bring you back to the map you were before. "
		2078	. "Please report this to the dungeon master!",
		2079	cf::NDI_UNIQUE | cf::NDI_RED);
		2080
		2081	warn "ERROR in enter_exit: $@";
		2082	$self->leave_link;
		2083	}
		2084	})->prio (1);
		2085	}
		2086
932	=head3 cf::client	2087	=head3 cf::client
933		2088
934	=over 4	2089	=over 4
935		2090
936	=item $client->send_drawinfo ($text, $flags)	2091	=item $client->send_drawinfo ($text, $flags)
…		…
942		2097
943	sub cf::client::send_drawinfo {	2098	sub cf::client::send_drawinfo {
944	my ($self, $text, $flags) = @_;	2099	my ($self, $text, $flags) = @_;
945		2100
946	utf8::encode $text;	2101	utf8::encode $text;
947	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2102	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
948	}	2103	}
949		2104
		2105	=item $client->ext_event ($type, %msg)
		2106
		2107	Sends an exti event to the client.
		2108
		2109	=cut
		2110
		2111	sub cf::client::ext_event($$%) {
		2112	my ($self, $type, %msg) = @_;
		2113
		2114	$msg{msgtype} = "event_$type";
		2115	$self->send_packet ("ext " . cf::to_json \%msg);
		2116	}
950		2117
951	=item $success = $client->query ($flags, "text", \&cb)	2118	=item $success = $client->query ($flags, "text", \&cb)
952		2119
953	Queues a query to the client, calling the given callback with	2120	Queues a query to the client, calling the given callback with
954	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2121	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
979	on_reply => sub {	2146	on_reply => sub {
980	my ($ns, $msg) = @_;	2147	my ($ns, $msg) = @_;
981		2148
982	# this weird shuffling is so that direct followup queries	2149	# this weird shuffling is so that direct followup queries
983	# get handled first	2150	# get handled first
984	my $queue = delete $ns->{query_queue};	2151	my $queue = delete $ns->{query_queue}
		2152	or return; # be conservative, not sure how that can happen, but we saw a crash here
985		2153
986	(shift @$queue)->[1]->($msg);	2154	(shift @$queue)->[1]->($msg);
		2155	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
987		2156
988	push @{ $ns->{query_queue} }, @$queue;	2157	push @{ $ns->{query_queue} }, @$queue;
989		2158
990	if (@{ $ns->{query_queue} } == @$queue) {	2159	if (@{ $ns->{query_queue} } == @$queue) {
991	if (@$queue) {	2160	if (@$queue) {
…		…
995	}	2164	}
996	}	2165	}
997	},	2166	},
998	);	2167	);
999		2168
1000	=item $client->coro (\&cb)	2169	=item $client->async (\&cb)
1001		2170
1002	Create a new coroutine, running the specified callback. The coroutine will	2171	Create a new coroutine, running the specified callback. The coroutine will
1003	be automatically cancelled when the client gets destroyed (e.g. on logout,	2172	be automatically cancelled when the client gets destroyed (e.g. on logout,
1004	or loss of connection).	2173	or loss of connection).
1005		2174
1006	=cut	2175	=cut
1007		2176
1008	sub cf::client::coro {	2177	sub cf::client::async {
1009	my ($self, $cb) = @_;	2178	my ($self, $cb) = @_;
1010		2179
1011	my $coro; $coro = async {	2180	my $coro = &Coro::async ($cb);
1012	eval {
1013	$cb->();
1014	};
1015	warn $@ if $@;
1016	};
1017		2181
1018	$coro->on_destroy (sub {	2182	$coro->on_destroy (sub {
1019	delete $self->{_coro}{$coro+0};	2183	delete $self->{_coro}{$coro+0};
1020	});	2184	});
1021		2185
…		…
1054		2218
1055	# here we export the classes and methods available to script code	2219	# here we export the classes and methods available to script code
1056		2220
1057	=pod	2221	=pod
1058		2222
1059	The following fucntions and emthods are available within a safe environment:	2223	The following functions and methods are available within a safe environment:
1060		2224
1061	cf::object contr pay_amount pay_player map	2225	cf::object contr pay_amount pay_player map
1062	cf::object::player player	2226	cf::object::player player
1063	cf::player peaceful	2227	cf::player peaceful
1064	cf::map trigger	2228	cf::map trigger
…		…
1149	#############################################################################	2313	#############################################################################
1150		2314
1151	=head2 EXTENSION DATABASE SUPPORT	2315	=head2 EXTENSION DATABASE SUPPORT
1152		2316
1153	Crossfire maintains a very simple database for extension use. It can	2317	Crossfire maintains a very simple database for extension use. It can
1154	currently store anything that can be serialised using Storable, which	2318	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1155	excludes objects.	2319	convert to/from binary).
1156		2320
1157	The parameter C<$family> should best start with the name of the extension	2321	The parameter C<$family> should best start with the name of the extension
1158	using it, it should be unique.	2322	using it, it should be unique.
1159		2323
1160	=over 4	2324	=over 4
1161		2325
1162	=item $hashref = cf::db_get $family
1163
1164	Return a hashref for use by the extension C<$family>, which can be
1165	modified. After modifications, you have to call C<cf::db_dirty> or
1166	C<cf::db_sync>.
1167
1168	=item $value = cf::db_get $family => $key	2326	=item $value = cf::db_get $family => $key
1169		2327
1170	Returns a single value from the database	2328	Returns a single value from the database.
1171
1172	=item cf::db_put $family => $hashref
1173
1174	Stores the given family hashref into the database. Updates are delayed, if
1175	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1176		2329
1177	=item cf::db_put $family => $key => $value	2330	=item cf::db_put $family => $key => $value
1178		2331
1179	Stores the given C<$value> in the family hash. Updates are delayed, if you	2332	Stores the given C<$value> in the family.
1180	want the data to be synced to disk immediately, use C<cf::db_sync>.
1181
1182	=item cf::db_dirty
1183
1184	Marks the database as dirty, to be updated at a later time.
1185
1186	=item cf::db_sync
1187
1188	Immediately write the database to disk I<if it is dirty>.
1189		2333
1190	=cut	2334	=cut
1191		2335
1192	our $DB;	2336	our $DB;
1193		2337
1194	{	2338	sub db_init {
1195	my $path = cf::localdir . "/database.pst";	2339	unless ($DB) {
		2340	$DB = BDB::db_create $DB_ENV;
1196		2341
1197	sub db_load() {	2342	cf::sync_job {
1198	warn "loading database $path\n";#d# remove later	2343	eval {
1199	$DB = stat $path ? Storable::retrieve $path : { };	2344	$DB->set_flags (BDB::CHKSUM);
1200	}
1201		2345
1202	my $pid;	2346	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1203		2347	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1204	sub db_save() {	2348	cf::cleanup "db_open(db): $!" if $!;
1205	warn "saving database $path\n";#d# remove later	2349	};
1206	waitpid $pid, 0 if $pid;	2350	cf::cleanup "db_open(db): $@" if $@;
1207	if (0 == ($pid = fork)) {
1208	$DB->{_meta}{version} = 1;
1209	Storable::nstore $DB, "$path~";
1210	rename "$path~", $path;
1211	cf::_exit 0 if defined $pid;
1212	}	2351	};
1213	}
1214
1215	my $dirty;
1216
1217	sub db_sync() {
1218	db_save if $dirty;
1219	undef $dirty;
1220	}
1221
1222	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1223	db_sync;
1224	});	2352	}
		2353	}
1225		2354
1226	sub db_dirty() {
1227	$dirty = 1;
1228	$idle->start;
1229	}
1230
1231	sub db_get($;$) {	2355	sub db_get($$) {
1232	@_ >= 2	2356	my $key = "$_[0]/$_[1]";
1233	? $DB->{$_[0]}{$_[1]}
1234	: ($DB->{$_[0]} ||= { })
1235	}
1236		2357
		2358	cf::sync_job {
		2359	BDB::db_get $DB, undef, $key, my $data;
		2360
		2361	$! ? ()
		2362	: $data
		2363	}
		2364	}
		2365
1237	sub db_put($$;$) {	2366	sub db_put($$$) {
1238	if (@_ >= 3) {	2367	BDB::dbreq_pri 4;
1239	$DB->{$_[0]}{$_[1]} = $_[2];	2368	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1240	} else {	2369	}
1241	$DB->{$_[0]} = $_[1];
1242	}
1243	db_dirty;
1244	}
1245		2370
1246	cf::global->attach (	2371	=item cf::cache $id => [$paths...], $processversion => $process
1247	prio => 10000,	2372
1248	on_cleanup => sub {	2373	Generic caching function that returns the value of the resource $id,
1249	db_sync;	2374	caching and regenerating as required.
		2375
		2376	This function can block.
		2377
		2378	=cut
		2379
		2380	sub cache {
		2381	my ($id, $src, $processversion, $process) = @_;
		2382
		2383	my $meta =
		2384	join "\x00",
		2385	$processversion,
		2386	map {
		2387	aio_stat $_
		2388	and Carp::croak "$_: $!";
		2389
		2390	($_, (stat _)[7,9])
		2391	} @$src;
		2392
		2393	my $dbmeta = db_get cache => "$id/meta";
		2394	if ($dbmeta ne $meta) {
		2395	# changed, we may need to process
		2396
		2397	my @data;
		2398	my $md5;
		2399
		2400	for (0 .. $#$src) {
		2401	0 <= aio_load $src->[$_], $data[$_]
		2402	or Carp::croak "$src->[$_]: $!";
1250	},	2403	}
1251	);	2404
		2405	# if processing is expensive, check
		2406	# checksum first
		2407	if (1) {
		2408	$md5 =
		2409	join "\x00",
		2410	$processversion,
		2411	map {
		2412	Coro::cede;
		2413	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2414	} 0.. $#$src;
		2415
		2416
		2417	my $dbmd5 = db_get cache => "$id/md5";
		2418	if ($dbmd5 eq $md5) {
		2419	db_put cache => "$id/meta", $meta;
		2420
		2421	return db_get cache => "$id/data";
		2422	}
		2423	}
		2424
		2425	my $t1 = Time::HiRes::time;
		2426	my $data = $process->(\@data);
		2427	my $t2 = Time::HiRes::time;
		2428
		2429	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2430
		2431	db_put cache => "$id/data", $data;
		2432	db_put cache => "$id/md5" , $md5;
		2433	db_put cache => "$id/meta", $meta;
		2434
		2435	return $data;
		2436	}
		2437
		2438	db_get cache => "$id/data"
		2439	}
		2440
		2441	=item fork_call { }, $args
		2442
		2443	Executes the given code block with the given arguments in a seperate
		2444	process, returning the results. Everything must be serialisable with
		2445	Coro::Storable. May, of course, block. Note that the executed sub may
		2446	never block itself or use any form of Event handling.
		2447
		2448	=cut
		2449
		2450	sub fork_call(&@) {
		2451	my ($cb, @args) = @_;
		2452
		2453	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2454	# or die "socketpair: $!";
		2455	pipe my $fh1, my $fh2
		2456	or die "pipe: $!";
		2457
		2458	if (my $pid = fork) {
		2459	close $fh2;
		2460
		2461	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2462	$res = Coro::Storable::thaw $res;
		2463
		2464	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2465
		2466	die $$res unless "ARRAY" eq ref $res;
		2467
		2468	return wantarray ? @$res : $res->[-1];
		2469	} else {
		2470	reset_signals;
		2471	local $SIG{__WARN__};
		2472	local $SIG{__DIE__};
		2473	eval {
		2474	close $fh1;
		2475
		2476	my @res = eval { $cb->(@args) };
		2477	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2478	};
		2479
		2480	warn $@ if $@;
		2481	_exit 0;
		2482	}
1252	}	2483	}
1253		2484
1254	#############################################################################	2485	#############################################################################
1255	# the server's main()	2486	# the server's init and main functions
		2487
		2488	sub load_facedata($) {
		2489	my ($path) = @_;
		2490
		2491	warn "loading facedata from $path\n";
		2492
		2493	my $facedata;
		2494	0 < aio_load $path, $facedata
		2495	or die "$path: $!";
		2496
		2497	$facedata = Coro::Storable::thaw $facedata;
		2498
		2499	$facedata->{version} == 2
		2500	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2501
		2502	{
		2503	my $faces = $facedata->{faceinfo};
		2504
		2505	while (my ($face, $info) = each %$faces) {
		2506	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2507	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2508	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2509	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2510	Coro::cede;
		2511	}
		2512
		2513	while (my ($face, $info) = each %$faces) {
		2514	next unless $info->{smooth};
		2515	my $idx = cf::face::find $face
		2516	or next;
		2517	if (my $smooth = cf::face::find $info->{smooth}) {
		2518	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2519	} else {
		2520	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2521	}
		2522	Coro::cede;
		2523	}
		2524	}
		2525
		2526	{
		2527	my $anims = $facedata->{animinfo};
		2528
		2529	while (my ($anim, $info) = each %$anims) {
		2530	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2531	Coro::cede;
		2532	}
		2533
		2534	cf::anim::invalidate_all; # d'oh
		2535	}
		2536
		2537	1
		2538	}
		2539
		2540	sub reload_regions {
		2541	load_resource_file "$MAPDIR/regions"
		2542	or die "unable to load regions file\n";
		2543	}
		2544
		2545	sub reload_facedata {
		2546	load_facedata "$DATADIR/facedata"
		2547	or die "unable to load facedata\n";
		2548	}
		2549
		2550	sub reload_archetypes {
		2551	load_resource_file "$DATADIR/archetypes"
		2552	or die "unable to load archetypes\n";
		2553	}
		2554
		2555	sub reload_treasures {
		2556	load_resource_file "$DATADIR/treasures"
		2557	or die "unable to load treasurelists\n";
		2558	}
		2559
		2560	sub reload_resources {
		2561	warn "reloading resource files...\n";
		2562
		2563	reload_regions;
		2564	reload_facedata;
		2565	reload_archetypes;
		2566	reload_treasures;
		2567
		2568	warn "finished reloading resource files\n";
		2569	}
		2570
		2571	sub init {
		2572	reload_resources;
		2573	}
1256		2574
1257	sub cfg_load {	2575	sub cfg_load {
1258	open my $fh, "<:utf8", cf::confdir . "/config"	2576	open my $fh, "<:utf8", "$CONFDIR/config"
1259	or return;	2577	or return;
1260		2578
1261	local $/;	2579	local $/;
1262	*CFG = YAML::Syck::Load <$fh>;	2580	*CFG = YAML::Syck::Load <$fh>;
		2581
		2582	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2583
		2584	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2585	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2586
		2587	if (exists $CFG{mlockall}) {
		2588	eval {
		2589	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2590	and die "WARNING: m(un)lockall failed: $!\n";
		2591	};
		2592	warn $@ if $@;
		2593	}
1263	}	2594	}
1264		2595
1265	sub main {	2596	sub main {
		2597	# we must not ever block the main coroutine
		2598	local $Coro::idle = sub {
		2599	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2600	(async {
		2601	Event::one_event;
		2602	})->prio (Coro::PRIO_MAX);
		2603	};
		2604
1266	cfg_load;	2605	cfg_load;
1267	db_load;	2606	db_init;
1268	load_extensions;	2607	load_extensions;
		2608
		2609	$TICK_WATCHER->start;
1269	Event::loop;	2610	Event::loop;
1270	}	2611	}
1271		2612
1272	#############################################################################	2613	#############################################################################
1273	# initialisation	2614	# initialisation and cleanup
1274		2615
1275	sub _perl_reload() {	2616	# install some emergency cleanup handlers
		2617	BEGIN {
		2618	for my $signal (qw(INT HUP TERM)) {
		2619	Event->signal (
		2620	reentrant => 0,
		2621	data => WF_AUTOCANCEL,
		2622	signal => $signal,
		2623	prio => 0,
		2624	cb => sub {
		2625	cf::cleanup "SIG$signal";
		2626	},
		2627	);
		2628	}
		2629	}
		2630
		2631	sub emergency_save() {
		2632	my $freeze_guard = cf::freeze_mainloop;
		2633
		2634	warn "enter emergency perl save\n";
		2635
		2636	cf::sync_job {
		2637	# use a peculiar iteration method to avoid tripping on perl
		2638	# refcount bugs in for. also avoids problems with players
		2639	# and maps saved/destroyed asynchronously.
		2640	warn "begin emergency player save\n";
		2641	for my $login (keys %cf::PLAYER) {
		2642	my $pl = $cf::PLAYER{$login} or next;
		2643	$pl->valid or next;
		2644	$pl->save;
		2645	}
		2646	warn "end emergency player save\n";
		2647
		2648	warn "begin emergency map save\n";
		2649	for my $path (keys %cf::MAP) {
		2650	my $map = $cf::MAP{$path} or next;
		2651	$map->valid or next;
		2652	$map->save;
		2653	}
		2654	warn "end emergency map save\n";
		2655
		2656	warn "begin emergency database checkpoint\n";
		2657	BDB::db_env_txn_checkpoint $DB_ENV;
		2658	warn "end emergency database checkpoint\n";
		2659	};
		2660
		2661	warn "leave emergency perl save\n";
		2662	}
		2663
		2664	sub post_cleanup {
		2665	my ($make_core) = @_;
		2666
		2667	warn Carp::longmess "post_cleanup backtrace"
		2668	if $make_core;
		2669	}
		2670
		2671	sub do_reload_perl() {
		2672	# can/must only be called in main
		2673	if ($Coro::current != $Coro::main) {
		2674	warn "can only reload from main coroutine";
		2675	return;
		2676	}
		2677
1276	warn "reloading...";	2678	warn "reloading...";
1277		2679
1278	eval {	2680	warn "entering sync_job";
1279	local $FREEZE = 1;
1280		2681
		2682	cf::sync_job {
		2683	cf::write_runtime; # external watchdog should not bark
1281	cf::emergency_save;	2684	cf::emergency_save;
		2685	cf::write_runtime; # external watchdog should not bark
1282		2686
1283	# cancel all watchers	2687	warn "syncing database to disk";
		2688	BDB::db_env_txn_checkpoint $DB_ENV;
		2689
		2690	# if anything goes wrong in here, we should simply crash as we already saved
		2691
		2692	warn "cancelling all WF_AUTOCANCEL watchers";
1284	for (Event::all_watchers) {	2693	for (Event::all_watchers) {
1285	$_->cancel if $_->data & WF_AUTOCANCEL;	2694	$_->cancel if $_->data & WF_AUTOCANCEL;
1286	}	2695	}
1287		2696
		2697	warn "flushing outstanding aio requests";
		2698	for (;;) {
		2699	BDB::flush;
		2700	IO::AIO::flush;
		2701	Coro::cede;
		2702	last unless IO::AIO::nreqs || BDB::nreqs;
		2703	warn "iterate...";
		2704	}
		2705
		2706	++$RELOAD;
		2707
1288	# cancel all extension coros	2708	warn "cancelling all extension coros";
1289	$_->cancel for values %EXT_CORO;	2709	$_->cancel for values %EXT_CORO;
1290	%EXT_CORO = ();	2710	%EXT_CORO = ();
1291		2711
1292	# unload all extensions	2712	warn "removing commands";
1293	for (@exts) {	2713	%COMMAND = ();
		2714
		2715	warn "removing ext commands";
		2716	%EXTCMD = ();
		2717
		2718	warn "unloading/nuking all extensions";
		2719	for my $pkg (@EXTS) {
1294	warn "unloading <$_>";	2720	warn "... unloading $pkg";
1295	unload_extension $_;	2721
		2722	if (my $cb = $pkg->can ("unload")) {
		2723	eval {
		2724	$cb->($pkg);
		2725	1
		2726	} or warn "$pkg unloaded, but with errors: $@";
1296	}	2727	}
1297		2728
		2729	warn "... nuking $pkg";
		2730	Symbol::delete_package $pkg;
		2731	}
		2732
1298	# unload all modules loaded from $LIBDIR	2733	warn "unloading all perl modules loaded from $LIBDIR";
1299	while (my ($k, $v) = each %INC) {	2734	while (my ($k, $v) = each %INC) {
1300	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2735	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1301		2736
1302	warn "removing <$k>";	2737	warn "... unloading $k";
1303	delete $INC{$k};	2738	delete $INC{$k};
1304		2739
1305	$k =~ s/\.pm$//;	2740	$k =~ s/\.pm$//;
1306	$k =~ s/\//::/g;	2741	$k =~ s/\//::/g;
1307		2742
…		…
1310	}	2745	}
1311		2746
1312	Symbol::delete_package $k;	2747	Symbol::delete_package $k;
1313	}	2748	}
1314		2749
1315	# sync database to disk
1316	cf::db_sync;
1317	IO::AIO::flush;
1318
1319	# get rid of safe::, as good as possible	2750	warn "getting rid of safe::, as good as possible";
1320	Symbol::delete_package "safe::$_"	2751	Symbol::delete_package "safe::$_"
1321	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2752	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1322		2753
1323	# remove register_script_function callbacks
1324	# TODO
1325
1326	# unload cf.pm "a bit"	2754	warn "unloading cf.pm \"a bit\"";
1327	delete $INC{"cf.pm"};	2755	delete $INC{"cf.pm"};
		2756	delete $INC{"cf/pod.pm"};
1328		2757
1329	# don't, removes xs symbols, too,	2758	# don't, removes xs symbols, too,
1330	# and global variables created in xs	2759	# and global variables created in xs
1331	#Symbol::delete_package __PACKAGE__;	2760	#Symbol::delete_package __PACKAGE__;
1332		2761
1333	# reload cf.pm	2762	warn "unload completed, starting to reload now";
		2763
1334	warn "reloading cf.pm";	2764	warn "reloading cf.pm";
1335	require cf;	2765	require cf;
1336	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2766	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1337		2767
1338	# load config and database again	2768	warn "loading config and database again";
1339	cf::cfg_load;	2769	cf::cfg_load;
1340	cf::db_load;
1341		2770
1342	# load extensions
1343	warn "load extensions";	2771	warn "loading extensions";
1344	cf::load_extensions;	2772	cf::load_extensions;
1345		2773
1346	# reattach attachments to objects	2774	warn "reattaching attachments to objects/players";
1347	warn "reattach";	2775	_global_reattach; # objects, sockets
1348	_global_reattach;	2776	warn "reattaching attachments to maps";
		2777	reattach $_ for values %MAP;
		2778	warn "reattaching attachments to players";
		2779	reattach $_ for values %PLAYER;
		2780
		2781	warn "leaving sync_job";
		2782
		2783	1
		2784	} or do {
		2785	warn $@;
		2786	warn "error while reloading, exiting.";
		2787	exit 1;
1349	};	2788	};
1350	warn $@ if $@;
1351		2789
1352	warn "reloaded";	2790	warn "reloaded";
1353	};	2791	};
1354		2792
1355	sub perl_reload() {	2793	our $RELOAD_WATCHER; # used only during reload
1356	_perl_reload;
1357	}
1358		2794
1359	register "<global>", __PACKAGE__;	2795	sub reload_perl() {
		2796	# doing reload synchronously and two reloads happen back-to-back,
		2797	# coro crashes during coro_state_free->destroy here.
1360		2798
		2799	$RELOAD_WATCHER ||= Event->timer (
		2800	reentrant => 0,
		2801	after => 0,
		2802	data => WF_AUTOCANCEL,
		2803	cb => sub {
		2804	do_reload_perl;
		2805	undef $RELOAD_WATCHER;
		2806	},
		2807	);
		2808	}
		2809
1361	register_command "perl-reload" => sub {	2810	register_command "reload" => sub {
1362	my ($who, $arg) = @_;	2811	my ($who, $arg) = @_;
1363		2812
1364	if ($who->flag (FLAG_WIZ)) {	2813	if ($who->flag (FLAG_WIZ)) {
1365	$who->message ("reloading...");	2814	$who->message ("reloading server.");
1366	_perl_reload;	2815	async { reload_perl };
1367	}	2816	}
1368	};	2817	};
1369		2818
1370	unshift @INC, $LIBDIR;	2819	unshift @INC, $LIBDIR;
1371		2820
		2821	my $bug_warning = 0;
		2822
		2823	our @WAIT_FOR_TICK;
		2824	our @WAIT_FOR_TICK_BEGIN;
		2825
		2826	sub wait_for_tick {
		2827	return unless $TICK_WATCHER->is_active;
		2828	return if $Coro::current == $Coro::main;
		2829
		2830	my $signal = new Coro::Signal;
		2831	push @WAIT_FOR_TICK, $signal;
		2832	$signal->wait;
		2833	}
		2834
		2835	sub wait_for_tick_begin {
		2836	return unless $TICK_WATCHER->is_active;
		2837	return if $Coro::current == $Coro::main;
		2838
		2839	my $signal = new Coro::Signal;
		2840	push @WAIT_FOR_TICK_BEGIN, $signal;
		2841	$signal->wait;
		2842	}
		2843
		2844	my $min = 1e6;#d#
		2845	my $avg = 10;
1372	$TICK_WATCHER = Event->timer (	2846	$TICK_WATCHER = Event->timer (
1373	reentrant => 0,	2847	reentrant => 0,
		2848	parked => 1,
1374	prio => 0,	2849	prio => 0,
1375	at => $NEXT_TICK || $TICK,	2850	at => $NEXT_TICK || $TICK,
1376	data => WF_AUTOCANCEL,	2851	data => WF_AUTOCANCEL,
1377	cb => sub {	2852	cb => sub {
1378	unless ($FREEZE) {	2853	if ($Coro::current != $Coro::main) {
		2854	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2855	unless ++$bug_warning > 10;
		2856	return;
		2857	}
		2858
		2859	$NOW = $tick_start = Event::time;
		2860
1379	cf::server_tick; # one server iteration	2861	cf::server_tick; # one server iteration
1380	$RUNTIME += $TICK;	2862
		2863	0 && sync_job {#d#
		2864	for(1..10) {
		2865	my $t = Event::time;
		2866	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2867	or die;
		2868
		2869	$map->width (50);
		2870	$map->height (50);
		2871	$map->alloc;
		2872	$map->_load_objects ("/tmp/x.map", 1);
		2873	my $t = Event::time - $t;
		2874
		2875	#next unless $t < 0.0013;#d#
		2876	if ($t < $min) {
		2877	$min = $t;
		2878	}
		2879	$avg = $avg * 0.99 + $t * 0.01;
		2880	}
		2881	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2882	exit 0;
		2883	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
1381	}	2884	};
1382		2885
		2886	$RUNTIME += $TICK;
1383	$NEXT_TICK += $TICK;	2887	$NEXT_TICK += $TICK;
1384		2888
		2889	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2890	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2891	Coro::async_pool {
		2892	write_runtime
		2893	or warn "ERROR: unable to write runtime file: $!";
		2894	};
		2895	}
		2896
		2897	# my $AFTER = Event::time;
		2898	# warn $AFTER - $NOW;#d#
		2899
		2900	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2901	$sig->send;
		2902	}
		2903	while (my $sig = shift @WAIT_FOR_TICK) {
		2904	$sig->send;
		2905	}
		2906
		2907	$NOW = Event::time;
		2908
1385	# if we are delayed by four ticks or more, skip them all	2909	# if we are delayed by four ticks or more, skip them all
1386	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2910	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1387		2911
1388	$TICK_WATCHER->at ($NEXT_TICK);	2912	$TICK_WATCHER->at ($NEXT_TICK);
1389	$TICK_WATCHER->start;	2913	$TICK_WATCHER->start;
		2914
		2915	$LOAD = ($NOW - $tick_start) / $TICK;
		2916	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2917
		2918	_post_tick;
		2919
		2920
1390	},	2921	},
1391	);	2922	);
1392		2923
		2924	{
		2925	BDB::max_poll_time $TICK * 0.1;
		2926	$BDB_POLL_WATCHER = Event->io (
		2927	reentrant => 0,
		2928	fd => BDB::poll_fileno,
		2929	poll => 'r',
		2930	prio => 0,
		2931	data => WF_AUTOCANCEL,
		2932	cb => \&BDB::poll_cb,
		2933	);
		2934	BDB::min_parallel 8;
		2935
		2936	BDB::set_sync_prepare {
		2937	my $status;
		2938	my $current = $Coro::current;
		2939	(
		2940	sub {
		2941	$status = $!;
		2942	$current->ready; undef $current;
		2943	},
		2944	sub {
		2945	Coro::schedule while defined $current;
		2946	$! = $status;
		2947	},
		2948	)
		2949	};
		2950
		2951	unless ($DB_ENV) {
		2952	$DB_ENV = BDB::db_env_create;
		2953
		2954	cf::sync_job {
		2955	eval {
		2956	BDB::db_env_open
		2957	$DB_ENV,
		2958	$BDBDIR,
		2959	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2960	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2961	0666;
		2962
		2963	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2964
		2965	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2966	$DB_ENV->set_lk_detect;
		2967	};
		2968
		2969	cf::cleanup "db_env_open(db): $@" if $@;
		2970	};
		2971	}
		2972	}
		2973
		2974	{
		2975	IO::AIO::min_parallel 8;
		2976
		2977	undef $Coro::AIO::WATCHER;
1393	IO::AIO::max_poll_time $TICK * 0.2;	2978	IO::AIO::max_poll_time $TICK * 0.1;
1394		2979	$AIO_POLL_WATCHER = Event->io (
1395	Event->io (fd => IO::AIO::poll_fileno,	2980	reentrant => 0,
1396	poll => 'r',
1397	prio => 5,
1398	data => WF_AUTOCANCEL,	2981	data => WF_AUTOCANCEL,
		2982	fd => IO::AIO::poll_fileno,
		2983	poll => 'r',
		2984	prio => 6,
1399	cb => \&IO::AIO::poll_cb);	2985	cb => \&IO::AIO::poll_cb,
		2986	);
		2987	}
1400		2988
1401	# we must not ever block the main coroutine	2989	my $_log_backtrace;
1402	$Coro::idle = sub {	2990
1403	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2991	sub _log_backtrace {
1404	warn "FATAL: Coro::idle was called, major BUG\n";	2992	my ($msg, @addr) = @_;
1405	(Coro::unblock_sub {	2993
1406	Event::one_event;	2994	$msg =~ s/\n//;
1407	})->();	2995
1408	};	2996	# limit the # of concurrent backtraces
		2997	if ($_log_backtrace < 2) {
		2998	++$_log_backtrace;
		2999	async {
		3000	my @bt = fork_call {
		3001	@addr = map { sprintf "%x", $_ } @addr;
		3002	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3003	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3004	or die "addr2line: $!";
		3005
		3006	my @funcs;
		3007	my @res = <$fh>;
		3008	chomp for @res;
		3009	while (@res) {
		3010	my ($func, $line) = splice @res, 0, 2, ();
		3011	push @funcs, "[$func] $line";
		3012	}
		3013
		3014	@funcs
		3015	};
		3016
		3017	LOG llevInfo, "[ABT] $msg\n";
		3018	LOG llevInfo, "[ABT] $_\n" for @bt;
		3019	--$_log_backtrace;
		3020	};
		3021	} else {
		3022	LOG llevInfo, "[ABT] $msg\n";
		3023	LOG llevInfo, "[ABT] [suppressed]\n";
		3024	}
		3025	}
		3026
		3027	# load additional modules
		3028	use cf::pod;
		3029
		3030	END { cf::emergency_save }
1409		3031
1410	1	3032	1
1411		3033

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