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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 1.344 by root, Mon Aug 27 02:43:38 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 3.64 ();
		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;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
		28	use Data::Dumper;
		29	use Digest::MD5;
20	use Fcntl;	30	use Fcntl;
21	use IO::AIO 2.31 ();
22	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.32 ();
23	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
24		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
25	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
26		44
27	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
28	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
29		47
30	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
31		49
32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
33		51
34	our %COMMAND = ();	52	our %COMMAND = ();
35	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
36	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
37		60
		61	our $RELOAD; # number of reloads so far
38	our @EVENT;	62	our @EVENT;
39	our $LIBDIR = datadir . "/ext";
40		63
41	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
42	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
43	our $NEXT_TICK;	80	our $NEXT_TICK;
44	our $NOW;	81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $DB_ENV;
45		86
46	our %CFG;	87	our %CFG;
47		88
48	our $UPTIME; $UPTIME ||= time;	89	our $UPTIME; $UPTIME ||= time;
49	our $RUNTIME;	90	our $RUNTIME;
50		91
		92	our %PLAYER; # all users
51	our %MAP; # all maps	93	our %MAP; # all maps
52	our $LINK_MAP; # the special {link} map	94	our $LINK_MAP; # the special {link} map, which is always available
53	our $FREEZE;	95
		96	# used to convert map paths into valid unix filenames by replacing / by ∕
		97	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		98
		99	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		100	our $LOADAVG; # same thing, but with alpha-smoothing
		101	our $tick_start; # for load detecting purposes
54		102
55	binmode STDOUT;	103	binmode STDOUT;
56	binmode STDERR;	104	binmode STDERR;
57		105
58	# read virtual server time, if available	106	# read virtual server time, if available
59	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	107	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
60	open my $fh, "<", cf::localdir . "/runtime"	108	open my $fh, "<", "$LOCALDIR/runtime"
61	or die "unable to read runtime file: $!";	109	or die "unable to read runtime file: $!";
62	$RUNTIME = <$fh> + 0.;	110	$RUNTIME = <$fh> + 0.;
63	}	111	}
64		112
65	mkdir cf::localdir;	113	mkdir $_
66	mkdir cf::localdir . "/" . cf::playerdir;	114	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
67	mkdir cf::localdir . "/" . cf::tmpdir;
68	mkdir cf::localdir . "/" . cf::uniquedir;
69		115
70	our %EXT_CORO;	116	our $EMERGENCY_POSITION;
		117
		118	sub cf::map::normalise;
71		119
72	#############################################################################	120	#############################################################################
73		121
74	=head2 GLOBAL VARIABLES	122	=head2 GLOBAL VARIABLES
75		123
…		…
82	=item $cf::RUNTIME	130	=item $cf::RUNTIME
83		131
84	The time this server has run, starts at 0 and is increased by $cf::TICK on	132	The time this server has run, starts at 0 and is increased by $cf::TICK on
85	every server tick.	133	every server tick.
86		134
87	=item $cf::LIBDIR	135	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		136	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		137	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
88		138
89	The perl library directory, where extensions and cf-specific modules can	139	Various directories - "/etc", read-only install directory, perl-library
90	be found. It will be added to C<@INC> automatically.	140	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		141	unique-items directory, player file directory, random maps directory and
		142	database environment.
91		143
92	=item $cf::NOW	144	=item $cf::NOW
93		145
94	The time of the last (current) server tick.	146	The time of the last (current) server tick.
95		147
96	=item $cf::TICK	148	=item $cf::TICK
97		149
98	The interval between server ticks, in seconds.	150	The interval between server ticks, in seconds.
		151
		152	=item $cf::LOADAVG
		153
		154	The current CPU load on the server (alpha-smoothed), as a value between 0
		155	(none) and 1 (overloaded), indicating how much time is spent on processing
		156	objects per tick. Healthy values are < 0.5.
		157
		158	=item $cf::LOAD
		159
		160	The raw value load value from the last tick.
99		161
100	=item %cf::CFG	162	=item %cf::CFG
101		163
102	Configuration for the server, loaded from C</etc/crossfire/config>, or	164	Configuration for the server, loaded from C</etc/crossfire/config>, or
103	from wherever your confdir points to.	165	from wherever your confdir points to.
		166
		167	=item cf::wait_for_tick, cf::wait_for_tick_begin
		168
		169	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		170	returns directly I<after> the tick processing (and consequently, can only wake one process
		171	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		172
		173	=item @cf::INVOKE_RESULTS
		174
		175	This array contains the results of the last C<invoke ()> call. When
		176	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		177	that call.
104		178
105	=back	179	=back
106		180
107	=cut	181	=cut
108		182
109	BEGIN {	183	BEGIN {
110	*CORE::GLOBAL::warn = sub {	184	*CORE::GLOBAL::warn = sub {
111	my $msg = join "", @_;	185	my $msg = join "", @_;
112	utf8::encode $msg;
113		186
114	$msg .= "\n"	187	$msg .= "\n"
115	unless $msg =~ /\n$/;	188	unless $msg =~ /\n$/;
116		189
		190	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		191
		192	utf8::encode $msg;
117	LOG llevError, "cfperl: $msg";	193	LOG llevError, $msg;
118	};	194	};
119	}	195	}
120		196
121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	197	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
122	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	198	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
123	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	199	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
124	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	200	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
125	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	201	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		202	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
126	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	203	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
127		204
128	# we bless all objects into (empty) derived classes to force a method lookup	205	# we bless all objects into (empty) derived classes to force a method lookup
129	# within the Safe compartment.	206	# within the Safe compartment.
130	for my $pkg (qw(	207	for my $pkg (qw(
131	cf::global cf::attachable	208	cf::global cf::attachable
…		…
140		217
141	$Event::DIED = sub {	218	$Event::DIED = sub {
142	warn "error in event callback: @_";	219	warn "error in event callback: @_";
143	};	220	};
144		221
145	my %ext_pkg;	222	#############################################################################
146	my @exts;
147	my @hook;
148		223
149	=head2 UTILITY FUNCTIONS	224	=head2 UTILITY FUNCTIONS
150		225
151	=over 4	226	=over 4
152		227
153	=cut	228	=item dumpval $ref
154		229
155	use JSON::Syck (); # TODO# replace by JSON::PC once working	230	=cut
		231
		232	sub dumpval {
		233	eval {
		234	local $SIG{__DIE__};
		235	my $d;
		236	if (1) {
		237	$d = new Data::Dumper([$_[0]], ["*var"]);
		238	$d->Terse(1);
		239	$d->Indent(2);
		240	$d->Quotekeys(0);
		241	$d->Useqq(1);
		242	#$d->Bless(...);
		243	$d->Seen($_[1]) if @_ > 1;
		244	$d = $d->Dump();
		245	}
		246	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		247	$d
		248	} || "[unable to dump $_[0]: '$@']";
		249	}
156		250
157	=item $ref = cf::from_json $json	251	=item $ref = cf::from_json $json
158		252
159	Converts a JSON string into the corresponding perl data structure.	253	Converts a JSON string into the corresponding perl data structure.
160		254
161	=cut
162
163	sub from_json($) {
164	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
165	JSON::Syck::Load $_[0]
166	}
167
168	=item $json = cf::to_json $ref	255	=item $json = cf::to_json $ref
169		256
170	Converts a perl data structure into its JSON representation.	257	Converts a perl data structure into its JSON representation.
171		258
172	=cut	259	=cut
173		260
174	sub to_json($) {	261	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
176	JSON::Syck::Dump $_[0]
177	}
178		262
179	# main coro must never ever "block" except in Event	263	sub to_json ($) { $json_coder->encode ($_[0]) }
180	# sync_job ensures this by running the job in a coroutine	264	sub from_json ($) { $json_coder->decode ($_[0]) }
181	# and waiting in Event while the server is otherwise frozen	265
		266	=item cf::lock_wait $string
		267
		268	Wait until the given lock is available. See cf::lock_acquire.
		269
		270	=item my $lock = cf::lock_acquire $string
		271
		272	Wait until the given lock is available and then acquires it and returns
		273	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		274	for example when the coroutine gets canceled), the lock is automatically
		275	returned.
		276
		277	Lock names should begin with a unique identifier (for example, cf::map::find
		278	uses map_find and cf::map::load uses map_load).
		279
		280	=item $locked = cf::lock_active $string
		281
		282	Return true if the lock is currently active, i.e. somebody has locked it.
		283
		284	=cut
		285
		286	our %LOCK;
		287
		288	sub lock_wait($) {
		289	my ($key) = @_;
		290
		291	# wait for lock, if any
		292	while ($LOCK{$key}) {
		293	push @{ $LOCK{$key} }, $Coro::current;
		294	Coro::schedule;
		295	}
		296	}
		297
		298	sub lock_acquire($) {
		299	my ($key) = @_;
		300
		301	# wait, to be sure we are not locked
		302	lock_wait $key;
		303
		304	$LOCK{$key} = [];
		305
		306	Coro::guard {
		307	# wake up all waiters, to be on the safe side
		308	$_->ready for @{ delete $LOCK{$key} };
		309	}
		310	}
		311
		312	sub lock_active($) {
		313	my ($key) = @_;
		314
		315	! ! $LOCK{$key}
		316	}
		317
		318	sub freeze_mainloop {
		319	return unless $TICK_WATCHER->is_active;
		320
		321	my $guard = Coro::guard {
		322	$TICK_WATCHER->start;
		323	};
		324	$TICK_WATCHER->stop;
		325	$guard
		326	}
		327
		328	=item cf::get_slot $time[, $priority[, $name]]
		329
		330	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		331	This call blocks and returns only when you have at least C<$time> seconds
		332	of cpu time till the next tick. The slot is only valid till the next cede.
		333
		334	The optional C<$name> can be used to identify the job to run. It might be
		335	used for statistical purposes and should identify the same time-class.
		336
		337	Useful for short background jobs.
		338
		339	=cut
		340
		341	our @SLOT_QUEUE;
		342	our $SLOT_QUEUE;
		343
		344	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		345	$SLOT_QUEUE = Coro::async {
		346	my $signal = new Coro::Signal;
		347
		348	while () {
		349	next_job:
		350	my $avail = cf::till_tick;
		351	if ($avail > 0.01) {
		352	for (0 .. $#SLOT_QUEUE) {
		353	if ($SLOT_QUEUE[$_][0] < $avail) {
		354	my $job = splice @SLOT_QUEUE, $_, 1, ();
		355	$job->[2]->send;
		356	Coro::cede;
		357	goto next_job;
		358	}
		359	}
		360	}
		361
		362	if (@SLOT_QUEUE) {
		363	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		364	push @cf::WAIT_FOR_TICK, $signal;
		365	$signal->wait;
		366	} else {
		367	Coro::schedule;
		368	}
		369	}
		370	};
		371
		372	sub get_slot($;$$) {
		373	my ($time, $pri, $name) = @_;
		374
		375	$time = $TICK * .6 if $time > $TICK * .6;
		376	my $sig = new Coro::Signal;
		377
		378	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		379	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		380	$SLOT_QUEUE->ready;
		381	$sig->wait;
		382	}
		383
		384	=item cf::async { BLOCK }
		385
		386	Currently the same as Coro::async_pool, meaning you cannot use
		387	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		388	thing you are allowed to do is call C<prio> on it.
		389
		390	=cut
		391
		392	BEGIN { *async = \&Coro::async_pool }
		393
		394	=item cf::sync_job { BLOCK }
		395
		396	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
		397	is always able to handle events or runnable, as Crossfire TRT is only
		398	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		399	acceptable.
		400
		401	If it must be done, put the blocking parts into C<sync_job>. This will run
		402	the given BLOCK in another coroutine while waiting for the result. The
		403	server will be frozen during this time, so the block should either finish
		404	fast or be very important.
		405
		406	=cut
		407
182	sub sync_job(&) {	408	sub sync_job(&) {
183	my ($job) = @_;	409	my ($job) = @_;
184		410
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) {	411	if ($Coro::current == $Coro::main) {
		412	my $time = Event::time;
		413
		414	# this is the main coro, too bad, we have to block
		415	# till the operation succeeds, freezing the server :/
		416
		417	# TODO: use suspend/resume instead
		418	# (but this is cancel-safe)
		419	my $freeze_guard = freeze_mainloop;
		420
		421	my $busy = 1;
		422	my @res;
		423
		424	(async {
		425	@res = eval { $job->() };
		426	warn $@ if $@;
		427	undef $busy;
197	$coro->prio (Coro::PRIO_MAX);	428	})->prio (Coro::PRIO_MAX);
		429
198	while ($busy) {	430	while ($busy) {
199	Coro::cede_notself;	431	Coro::cede or Event::one_event;
200	Event::one_event unless Coro::nready;
201	}	432	}
		433
		434	$time = Event::time - $time;
		435
		436	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		437	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		438
		439	$tick_start += $time; # do not account sync jobs to server load
		440
		441	wantarray ? @res : $res[0]
202	} else {	442	} else {
203	$coro->join;	443	# we are in another coroutine, how wonderful, everything just works
		444
		445	$job->()
204	}	446	}
205
206	wantarray ? @res : $res[0]
207	}	447	}
208		448
209	=item $coro = cf::coro { BLOCK }	449	=item $coro = cf::async_ext { BLOCK }
210		450
211	Creates and returns a new coro. This coro is automcatially being canceled	451	Like async, but this coro is automatically being canceled when the
212	when the extension calling this is being unloaded.	452	extension calling this is being unloaded.
213		453
214	=cut	454	=cut
215		455
216	sub coro(&) {	456	sub async_ext(&) {
217	my $cb = shift;	457	my $cb = shift;
218		458
219	my $coro; $coro = async {	459	my $coro = &Coro::async ($cb);
220	eval {
221	$cb->();
222	};
223	warn $@ if $@;
224	};
225		460
226	$coro->on_destroy (sub {	461	$coro->on_destroy (sub {
227	delete $EXT_CORO{$coro+0};	462	delete $EXT_CORO{$coro+0};
228	});	463	});
229	$EXT_CORO{$coro+0} = $coro;	464	$EXT_CORO{$coro+0} = $coro;
230		465
231	$coro	466	$coro
232	}	467	}
233		468
		469	=item fork_call { }, $args
		470
		471	Executes the given code block with the given arguments in a seperate
		472	process, returning the results. Everything must be serialisable with
		473	Coro::Storable. May, of course, block. Note that the executed sub may
		474	never block itself or use any form of Event handling.
		475
		476	=cut
		477
		478	sub fork_call(&@) {
		479	my ($cb, @args) = @_;
		480
		481	# we seemingly have to make a local copy of the whole thing,
		482	# otherwise perl prematurely frees the stuff :/
		483	# TODO: investigate and fix (liekly this will be rather laborious)
		484
		485	my @res = Coro::Util::fork_eval {
		486	reset_signals;
		487	&$cb
		488	}, @args;
		489
		490	wantarray ? @res : $res[-1]
		491	}
		492
		493	=item $value = cf::db_get $family => $key
		494
		495	Returns a single value from the environment database.
		496
		497	=item cf::db_put $family => $key => $value
		498
		499	Stores the given C<$value> in the family. It can currently store binary
		500	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		501
		502	=cut
		503
		504	our $DB;
		505
		506	sub db_init {
		507	unless ($DB) {
		508	$DB = BDB::db_create $DB_ENV;
		509
		510	cf::sync_job {
		511	eval {
		512	$DB->set_flags (BDB::CHKSUM);
		513
		514	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		515	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		516	cf::cleanup "db_open(db): $!" if $!;
		517	};
		518	cf::cleanup "db_open(db): $@" if $@;
		519	};
		520	}
		521	}
		522
		523	sub db_get($$) {
		524	my $key = "$_[0]/$_[1]";
		525
		526	cf::sync_job {
		527	BDB::db_get $DB, undef, $key, my $data;
		528
		529	$! ? ()
		530	: $data
		531	}
		532	}
		533
		534	sub db_put($$$) {
		535	BDB::dbreq_pri 4;
		536	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		537	}
		538
		539	=item cf::cache $id => [$paths...], $processversion => $process
		540
		541	Generic caching function that returns the value of the resource $id,
		542	caching and regenerating as required.
		543
		544	This function can block.
		545
		546	=cut
		547
		548	sub cache {
		549	my ($id, $src, $processversion, $process) = @_;
		550
		551	my $meta =
		552	join "\x00",
		553	$processversion,
		554	map {
		555	aio_stat $_
		556	and Carp::croak "$_: $!";
		557
		558	($_, (stat _)[7,9])
		559	} @$src;
		560
		561	my $dbmeta = db_get cache => "$id/meta";
		562	if ($dbmeta ne $meta) {
		563	# changed, we may need to process
		564
		565	my @data;
		566	my $md5;
		567
		568	for (0 .. $#$src) {
		569	0 <= aio_load $src->[$_], $data[$_]
		570	or Carp::croak "$src->[$_]: $!";
		571	}
		572
		573	# if processing is expensive, check
		574	# checksum first
		575	if (1) {
		576	$md5 =
		577	join "\x00",
		578	$processversion,
		579	map {
		580	Coro::cede;
		581	($src->[$_], Digest::MD5::md5_hex $data[$_])
		582	} 0.. $#$src;
		583
		584
		585	my $dbmd5 = db_get cache => "$id/md5";
		586	if ($dbmd5 eq $md5) {
		587	db_put cache => "$id/meta", $meta;
		588
		589	return db_get cache => "$id/data";
		590	}
		591	}
		592
		593	my $t1 = Time::HiRes::time;
		594	my $data = $process->(\@data);
		595	my $t2 = Time::HiRes::time;
		596
		597	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		598
		599	db_put cache => "$id/data", $data;
		600	db_put cache => "$id/md5" , $md5;
		601	db_put cache => "$id/meta", $meta;
		602
		603	return $data;
		604	}
		605
		606	db_get cache => "$id/data"
		607	}
		608
		609	=item cf::datalog type => key => value, ...
		610
		611	Log a datalog packet of the given type with the given key-value pairs.
		612
		613	=cut
		614
		615	sub datalog($@) {
		616	my ($type, %kv) = @_;
		617	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		618	}
		619
234	=back	620	=back
235		621
236	=cut	622	=cut
237		623
238	#############################################################################	624	#############################################################################
…		…
243	attach callbacks/event handlers (a collection of which is called an "attachment")	629	attach callbacks/event handlers (a collection of which is called an "attachment")
244	to it. All such attachable objects support the following methods.	630	to it. All such attachable objects support the following methods.
245		631
246	In the following description, CLASS can be any of C<global>, C<object>	632	In the following description, CLASS can be any of C<global>, C<object>
247	C<player>, C<client> or C<map> (i.e. the attachable objects in	633	C<player>, C<client> or C<map> (i.e. the attachable objects in
248	crossfire+).	634	Crossfire TRT).
249		635
250	=over 4	636	=over 4
251		637
252	=item $attachable->attach ($attachment, key => $value...)	638	=item $attachable->attach ($attachment, key => $value...)
253		639
…		…
367	our @CB_TYPE = (); # registry for type (cf-object class) based events	753	our @CB_TYPE = (); # registry for type (cf-object class) based events
368	our @CB_MAP = ();	754	our @CB_MAP = ();
369		755
370	my %attachment;	756	my %attachment;
371		757
		758	sub cf::attachable::thawer_merge {
		759	# simply override everything except _meta
		760	local $_[0]{_meta};
		761	%{$_[0]} = %{$_[1]};
		762	}
		763
372	sub _attach_cb($$$$) {	764	sub _attach_cb($$$$) {
373	my ($registry, $event, $prio, $cb) = @_;	765	my ($registry, $event, $prio, $cb) = @_;
374		766
375	use sort 'stable';	767	use sort 'stable';
376		768
…		…
410	$registry = $CB_TYPE[$object_type] ||= [];	802	$registry = $CB_TYPE[$object_type] ||= [];
411		803
412	} elsif ($type eq "subtype") {	804	} elsif ($type eq "subtype") {
413	defined $object_type or Carp::croak "subtype specified without type";	805	defined $object_type or Carp::croak "subtype specified without type";
414	my $object_subtype = shift @arg;	806	my $object_subtype = shift @arg;
415	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	807	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
416		808
417	} elsif ($type eq "package") {	809	} elsif ($type eq "package") {
418	my $pkg = shift @arg;	810	my $pkg = shift @arg;
419		811
420	while (my ($name, $id) = each %cb_id) {	812	while (my ($name, $id) = each %cb_id) {
…		…
449	_attach $registry, $klass, @attach;	841	_attach $registry, $klass, @attach;
450	}	842	}
451		843
452	$obj->{$name} = \%arg;	844	$obj->{$name} = \%arg;
453	} else {	845	} else {
454	warn "object uses attachment '$name' that is not available, postponing.\n";	846	warn "object uses attachment '$name' which is not available, postponing.\n";
455	}	847	}
456		848
457	$obj->{_attachment}{$name} = undef;	849	$obj->{_attachment}{$name} = undef;
458	}	850	}
459		851
…		…
461	if (ref $_[0]) {	853	if (ref $_[0]) {
462	_object_attach @_;	854	_object_attach @_;
463	} else {	855	} else {
464	_attach shift->_attach_registry, @_;	856	_attach shift->_attach_registry, @_;
465	}	857	}
		858	_recalc_want;
466	};	859	};
467		860
468	# all those should be optimised	861	# all those should be optimised
469	sub cf::attachable::detach {	862	sub cf::attachable::detach {
470	my ($obj, $name) = @_;	863	my ($obj, $name) = @_;
…		…
473	delete $obj->{_attachment}{$name};	866	delete $obj->{_attachment}{$name};
474	reattach ($obj);	867	reattach ($obj);
475	} else {	868	} else {
476	Carp::croak "cannot, currently, detach class attachments";	869	Carp::croak "cannot, currently, detach class attachments";
477	}	870	}
		871	_recalc_want;
478	};	872	};
479		873
480	sub cf::attachable::attached {	874	sub cf::attachable::attached {
481	my ($obj, $name) = @_;	875	my ($obj, $name) = @_;
482		876
…		…
497	";	891	";
498	die if $@;	892	die if $@;
499	}	893	}
500		894
501	our $override;	895	our $override;
502	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	896	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
503		897
504	sub override {	898	sub override {
505	$override = 1;	899	$override = 1;
506	@invoke_results = ();	900	@INVOKE_RESULTS = (@_);
507	}	901	}
508		902
509	sub do_invoke {	903	sub do_invoke {
510	my $event = shift;	904	my $event = shift;
511	my $callbacks = shift;	905	my $callbacks = shift;
512		906
513	@invoke_results = ();	907	@INVOKE_RESULTS = ();
514		908
515	local $override;	909	local $override;
516		910
517	for (@$callbacks) {	911	for (@$callbacks) {
518	eval { &{$_->[1]} };	912	eval { &{$_->[1]} };
…		…
535		929
536	Generate an object-specific event with the given arguments.	930	Generate an object-specific event with the given arguments.
537		931
538	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	932	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
539	removed in future versions), and there is no public API to access override	933	removed in future versions), and there is no public API to access override
540	results (if you must, access C<@cf::invoke_results> directly).	934	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
541		935
542	=back	936	=back
543		937
544	=cut	938	=cut
545		939
546	#############################################################################	940	#############################################################################
547	# object support	941	# object support
		942	#
		943
		944	sub _can_merge {
		945	my ($ob1, $ob2) = @_;
		946
		947	local $Storable::canonical = 1;
		948	my $fob1 = Storable::freeze $ob1;
		949	my $fob2 = Storable::freeze $ob2;
		950
		951	$fob1 eq $fob2
		952	}
548		953
549	sub reattach {	954	sub reattach {
550	# basically do the same as instantiate, without calling instantiate	955	# basically do the same as instantiate, without calling instantiate
551	my ($obj) = @_;	956	my ($obj) = @_;
		957
		958	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
552		959
553	my $registry = $obj->registry;	960	my $registry = $obj->registry;
554		961
555	@$registry = ();	962	@$registry = ();
556		963
…		…
603	$filename, length $$rdata, scalar @$objs;	1010	$filename, length $$rdata, scalar @$objs;
604		1011
605	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1012	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
606	chmod SAVE_MODE, $fh;	1013	chmod SAVE_MODE, $fh;
607	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1014	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
608	aio_fsync $fh;	1015	aio_fsync $fh if $cf::USE_FSYNC;
609	close $fh;	1016	close $fh;
610		1017
611	if (@$objs) {	1018	if (@$objs) {
612	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1019	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
613	chmod SAVE_MODE, $fh;	1020	chmod SAVE_MODE, $fh;
614	my $data = Storable::nfreeze { version => 1, objs => $objs };	1021	my $data = Storable::nfreeze { version => 1, objs => $objs };
615	aio_write $fh, 0, (length $data), $data, 0;	1022	aio_write $fh, 0, (length $data), $data, 0;
616	aio_fsync $fh;	1023	aio_fsync $fh if $cf::USE_FSYNC;
617	close $fh;	1024	close $fh;
618	aio_rename "$filename.pst~", "$filename.pst";	1025	aio_rename "$filename.pst~", "$filename.pst";
619	}	1026	}
620	} else {	1027	} else {
621	aio_unlink "$filename.pst";	1028	aio_unlink "$filename.pst";
…		…
649	or return;	1056	or return;
650		1057
651	unless (aio_stat "$filename.pst") {	1058	unless (aio_stat "$filename.pst") {
652	(aio_load "$filename.pst", $av) >= 0	1059	(aio_load "$filename.pst", $av) >= 0
653	or return;	1060	or return;
654	$av = eval { (Storable::thaw <$av>)->{objs} };	1061	$av = eval { (Storable::thaw $av)->{objs} };
655	}	1062	}
656		1063
		1064	warn sprintf "loading %s (%d)\n",
		1065	$filename, length $data, scalar @{$av || []};
657	return ($data, $av);	1066	return ($data, $av);
658	}	1067	}
		1068
		1069	=head2 COMMAND CALLBACKS
		1070
		1071	=over 4
		1072
		1073	=cut
659		1074
660	#############################################################################	1075	#############################################################################
661	# command handling &c	1076	# command handling &c
662		1077
663	=item cf::register_command $name => \&callback($ob,$args);	1078	=item cf::register_command $name => \&callback($ob,$args);
…		…
676	push @{ $COMMAND{$name} }, [$caller, $cb];	1091	push @{ $COMMAND{$name} }, [$caller, $cb];
677	}	1092	}
678		1093
679	=item cf::register_extcmd $name => \&callback($pl,$packet);	1094	=item cf::register_extcmd $name => \&callback($pl,$packet);
680		1095
681	Register a callbackf ro execution when the client sends an extcmd packet.	1096	Register a callback for execution when the client sends an (synchronous)
		1097	extcmd packet. Ext commands will be processed in the order they are
		1098	received by the server, like other user commands. The first argument is
		1099	the logged-in player. Ext commands can only be processed after a player
		1100	has logged in successfully.
682		1101
683	If the callback returns something, it is sent back as if reply was being	1102	If the callback returns something, it is sent back as if reply was being
684	called.	1103	called.
685		1104
		1105	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1106
		1107	Register a callback for execution when the client sends an (asynchronous)
		1108	exticmd packet. Exti commands are processed by the server as soon as they
		1109	are received, i.e. out of order w.r.t. other commands. The first argument
		1110	is a client socket. Exti commands can be received anytime, even before
		1111	log-in.
		1112
		1113	If the callback returns something, it is sent back as if reply was being
		1114	called.
		1115
686	=cut	1116	=cut
687		1117
688	sub register_extcmd {	1118	sub register_extcmd {
689	my ($name, $cb) = @_;	1119	my ($name, $cb) = @_;
690		1120
691	my $caller = caller;
692	#warn "registering extcmd '$name' to '$caller'";
693
694	$EXTCMD{$name} = [$cb, $caller];	1121	$EXTCMD{$name} = $cb;
		1122	}
		1123
		1124	sub register_exticmd {
		1125	my ($name, $cb) = @_;
		1126
		1127	$EXTICMD{$name} = $cb;
695	}	1128	}
696		1129
697	cf::player->attach (	1130	cf::player->attach (
698	on_command => sub {	1131	on_command => sub {
699	my ($pl, $name, $params) = @_;	1132	my ($pl, $name, $params) = @_;
…		…
708	cf::override;	1141	cf::override;
709	},	1142	},
710	on_extcmd => sub {	1143	on_extcmd => sub {
711	my ($pl, $buf) = @_;	1144	my ($pl, $buf) = @_;
712		1145
713	my $msg = eval { from_json $buf };	1146	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
714		1147
715	if (ref $msg) {	1148	if (ref $msg) {
		1149	my ($type, $reply, @payload) =
		1150	"ARRAY" eq ref $msg
		1151	? @$msg
		1152	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1153
		1154	my @reply;
		1155
716	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1156	if (my $cb = $EXTCMD{$type}) {
717	if (my %reply = $cb->[0]->($pl, $msg)) {	1157	@reply = $cb->($pl, @payload);
718	$pl->ext_reply ($msg->{msgid}, %reply);
719	}
720	}	1158	}
		1159
		1160	$pl->ext_reply ($reply, @reply)
		1161	if $reply;
		1162
721	} else {	1163	} else {
722	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1164	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
723	}	1165	}
724		1166
725	cf::override;	1167	cf::override;
726	},	1168	},
727	);	1169	);
728		1170
		1171	sub load_extensions {
		1172	cf::sync_job {
		1173	my %todo;
		1174
		1175	for my $path (<$LIBDIR/*.ext>) {
		1176	next unless -r $path;
		1177
		1178	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1179	my $base = $1;
		1180	my $pkg = $1;
		1181	$pkg =~ s/[^[:word:]]/_/g;
		1182	$pkg = "ext::$pkg";
		1183
		1184	open my $fh, "<:utf8", $path
		1185	or die "$path: $!";
		1186
		1187	my $source = do { local $/; <$fh> };
		1188
		1189	my %ext = (
		1190	path => $path,
		1191	base => $base,
		1192	pkg => $pkg,
		1193	);
		1194
		1195	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1196	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1197
		1198	$ext{source} =
		1199	"package $pkg; use strict; use utf8;\n"
		1200	. "#line 1 \"$path\"\n{\n"
		1201	. $source
		1202	. "\n};\n1";
		1203
		1204	$todo{$base} = \%ext;
		1205	}
		1206
		1207	my %done;
		1208	while (%todo) {
		1209	my $progress;
		1210
		1211	while (my ($k, $v) = each %todo) {
		1212	for (split /,\s*/, $v->{meta}{depends}) {
		1213	goto skip
		1214	unless exists $done{$_};
		1215	}
		1216
		1217	warn "... loading '$k' into '$v->{pkg}'\n";
		1218
		1219	unless (eval $v->{source}) {
		1220	my $msg = $@ ? "$v->{path}: $@\n"
		1221	: "$v->{base}: extension inactive.\n";
		1222
		1223	if (exists $v->{meta}{mandatory}) {
		1224	warn $msg;
		1225	warn "mandatory extension failed to load, exiting.\n";
		1226	exit 1;
		1227	}
		1228
		1229	warn $msg;
		1230	}
		1231
		1232	$done{$k} = delete $todo{$k};
		1233	push @EXTS, $v->{pkg};
		1234	$progress = 1;
		1235	}
		1236
		1237	skip:
		1238	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1239	unless $progress;
		1240	}
		1241	};
		1242	}
		1243
		1244	#############################################################################
		1245
		1246	=back
		1247
		1248	=head2 CORE EXTENSIONS
		1249
		1250	Functions and methods that extend core crossfire objects.
		1251
		1252	=cut
		1253
		1254	package cf::player;
		1255
		1256	use Coro::AIO;
		1257
		1258	=head3 cf::player
		1259
		1260	=over 4
		1261
		1262	=item cf::player::find $login
		1263
		1264	Returns the given player object, loading it if necessary (might block).
		1265
		1266	=cut
		1267
		1268	sub playerdir($) {
		1269	"$PLAYERDIR/"
		1270	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1271	}
		1272
		1273	sub path($) {
		1274	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1275
		1276	(playerdir $login) . "/playerdata"
		1277	}
		1278
		1279	sub find_active($) {
		1280	$cf::PLAYER{$_[0]}
		1281	and $cf::PLAYER{$_[0]}->active
		1282	and $cf::PLAYER{$_[0]}
		1283	}
		1284
		1285	sub exists($) {
		1286	my ($login) = @_;
		1287
		1288	$cf::PLAYER{$login}
		1289	or cf::sync_job { !aio_stat path $login }
		1290	}
		1291
		1292	sub find($) {
		1293	return $cf::PLAYER{$_[0]} || do {
		1294	my $login = $_[0];
		1295
		1296	my $guard = cf::lock_acquire "user_find:$login";
		1297
		1298	$cf::PLAYER{$_[0]} || do {
		1299	# rename old playerfiles to new ones
		1300	#TODO: remove when no longer required
		1301	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1302	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1303	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1304	aio_unlink +(playerdir $login) . "/$login.pl";
		1305
		1306	my $pl = load_pl path $login
		1307	or return;
		1308	$cf::PLAYER{$login} = $pl
		1309	}
		1310	}
		1311	}
		1312
		1313	sub save($) {
		1314	my ($pl) = @_;
		1315
		1316	return if $pl->{deny_save};
		1317
		1318	my $path = path $pl;
		1319	my $guard = cf::lock_acquire "user_save:$path";
		1320
		1321	return if $pl->{deny_save};
		1322
		1323	aio_mkdir playerdir $pl, 0770;
		1324	$pl->{last_save} = $cf::RUNTIME;
		1325
		1326	$pl->save_pl ($path);
		1327	Coro::cede;
		1328	}
		1329
		1330	sub new($) {
		1331	my ($login) = @_;
		1332
		1333	my $self = create;
		1334
		1335	$self->ob->name ($login);
		1336	$self->{deny_save} = 1;
		1337
		1338	$cf::PLAYER{$login} = $self;
		1339
		1340	$self
		1341	}
		1342
		1343	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1344
		1345	=cut
		1346
		1347	sub send_msg {
		1348	my $ns = shift->ns
		1349	or return;
		1350	$ns->send_msg (@_);
		1351	}
		1352
		1353	=item $pl->quit_character
		1354
		1355	Nukes the player without looking back. If logged in, the connection will
		1356	be destroyed. May block for a long time.
		1357
		1358	=cut
		1359
		1360	sub quit_character {
		1361	my ($pl) = @_;
		1362
		1363	my $name = $pl->ob->name;
		1364
		1365	$pl->{deny_save} = 1;
		1366	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1367
		1368	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1369	$pl->deactivate;
		1370	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1371	$pl->ns->destroy if $pl->ns;
		1372
		1373	my $path = playerdir $pl;
		1374	my $temp = "$path~$cf::RUNTIME~deleting~";
		1375	aio_rename $path, $temp;
		1376	delete $cf::PLAYER{$pl->ob->name};
		1377	$pl->destroy;
		1378
		1379	my $prefix = qr<^~\Q$name\E/>;
		1380
		1381	# nuke player maps
		1382	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1383
		1384	IO::AIO::aio_rmtree $temp;
		1385	}
		1386
		1387	=item $pl->kick
		1388
		1389	Kicks a player out of the game. This destroys the connection.
		1390
		1391	=cut
		1392
		1393	sub kick {
		1394	my ($pl, $kicker) = @_;
		1395
		1396	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1397	$pl->killer ("kicked");
		1398	$pl->ns->destroy;
		1399	}
		1400
		1401	=item cf::player::list_logins
		1402
		1403	Returns am arrayref of all valid playernames in the system, can take a
		1404	while and may block, so not sync_job-capable, ever.
		1405
		1406	=cut
		1407
		1408	sub list_logins {
		1409	my $dirs = aio_readdir $PLAYERDIR
		1410	or return [];
		1411
		1412	my @logins;
		1413
		1414	for my $login (@$dirs) {
		1415	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1416	aio_read $fh, 0, 512, my $buf, 0 or next;
		1417	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1418
		1419	utf8::decode $login;
		1420	push @logins, $login;
		1421	}
		1422
		1423	\@logins
		1424	}
		1425
		1426	=item $player->maps
		1427
		1428	Returns an arrayref of map paths that are private for this
		1429	player. May block.
		1430
		1431	=cut
		1432
		1433	sub maps($) {
		1434	my ($pl) = @_;
		1435
		1436	$pl = ref $pl ? $pl->ob->name : $pl;
		1437
		1438	my $files = aio_readdir playerdir $pl
		1439	or return;
		1440
		1441	my @paths;
		1442
		1443	for (@$files) {
		1444	utf8::decode $_;
		1445	next if /\.(?:pl|pst)$/;
		1446	next unless /^$PATH_SEP/o;
		1447
		1448	push @paths, cf::map::normalise "~$pl/$_";
		1449	}
		1450
		1451	\@paths
		1452	}
		1453
		1454	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1455
		1456	Expand crossfire pod fragments into protocol xml.
		1457
		1458	=cut
		1459
		1460	sub expand_cfpod {
		1461	((my $self), (local $_)) = @_;
		1462
		1463	# escape & and <
		1464	s/&/&amp;/g;
		1465	s/(?<![BIUGH])</&lt;/g;
		1466
		1467	# this is buggy, it needs to properly take care of nested <'s
		1468
		1469	1 while
		1470	# replace B<>, I<>, U<> etc.
		1471	s/B<([^\>]*)>/<b>$1<\/b>/
		1472	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1473	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1474	# replace G<male|female> tags
		1475	|| s{G<([^>|]*)\|([^>]*)>}{
		1476	$self->gender ? $2 : $1
		1477	}ge
		1478	# replace H<hint text>
		1479	|| s{H<([^\>]*)>}
		1480	{
		1481	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1482	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1483	"")
		1484	[$self->{hintmode}]
		1485	}ge;
		1486
		1487	# create single paragraphs (very hackish)
		1488	s/(?<=\S)\n(?=\w)/ /g;
		1489
		1490	# compress some whitespace
		1491	s/\s+\n/\n/g; # ws line-ends
		1492	s/\n\n+/\n/g; # double lines
		1493	s/^\n+//; # beginning lines
		1494	s/\n+$//; # ending lines
		1495
		1496	$_
		1497	}
		1498
		1499	sub hintmode {
		1500	$_[0]{hintmode} = $_[1] if @_ > 1;
		1501	$_[0]{hintmode}
		1502	}
		1503
		1504	=item $player->ext_reply ($msgid, @msg)
		1505
		1506	Sends an ext reply to the player.
		1507
		1508	=cut
		1509
		1510	sub ext_reply($$@) {
		1511	my ($self, $id, @msg) = @_;
		1512
		1513	$self->ns->ext_reply ($id, @msg)
		1514	}
		1515
		1516	=item $player->ext_msg ($type, @msg)
		1517
		1518	Sends an ext event to the client.
		1519
		1520	=cut
		1521
		1522	sub ext_msg($$@) {
		1523	my ($self, $type, @msg) = @_;
		1524
		1525	$self->ns->ext_msg ($type, @msg);
		1526	}
		1527
		1528	=head3 cf::region
		1529
		1530	=over 4
		1531
		1532	=cut
		1533
		1534	package cf::region;
		1535
		1536	=item cf::region::find_by_path $path
		1537
		1538	Tries to decuce the likely region for a map knowing only its path.
		1539
		1540	=cut
		1541
		1542	sub find_by_path($) {
		1543	my ($path) = @_;
		1544
		1545	my ($match, $specificity);
		1546
		1547	for my $region (list) {
		1548	if ($region->{match} && $path =~ $region->{match}) {
		1549	($match, $specificity) = ($region, $region->specificity)
		1550	if $region->specificity > $specificity;
		1551	}
		1552	}
		1553
		1554	$match
		1555	}
		1556
		1557	=back
		1558
		1559	=head3 cf::map
		1560
		1561	=over 4
		1562
		1563	=cut
		1564
		1565	package cf::map;
		1566
		1567	use Fcntl;
		1568	use Coro::AIO;
		1569
		1570	use overload
		1571	'""' => \&as_string,
		1572	fallback => 1;
		1573
		1574	our $MAX_RESET = 3600;
		1575	our $DEFAULT_RESET = 3000;
		1576
		1577	sub generate_random_map {
		1578	my ($self, $rmp) = @_;
		1579	# mit "rum" bekleckern, nicht
		1580	$self->_create_random_map (
		1581	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1582	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1583	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1584	$rmp->{exit_on_final_map},
		1585	$rmp->{xsize}, $rmp->{ysize},
		1586	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1587	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1588	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1589	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1590	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1591	(cf::region::find $rmp->{region}), $rmp->{custom}
		1592	)
		1593	}
		1594
		1595	=item cf::map->register ($regex, $prio)
		1596
		1597	Register a handler for the map path matching the given regex at the
		1598	givne priority (higher is better, built-in handlers have priority 0, the
		1599	default).
		1600
		1601	=cut
		1602
729	sub register {	1603	sub register {
		1604	my (undef, $regex, $prio) = @_;
		1605	my $pkg = caller;
		1606
		1607	no strict;
		1608	push @{"$pkg\::ISA"}, __PACKAGE__;
		1609
		1610	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1611	}
		1612
		1613	# also paths starting with '/'
		1614	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1615
		1616	sub thawer_merge {
730	my ($base, $pkg) = @_;	1617	my ($self, $merge) = @_;
731		1618
732	#TODO	1619	# we have to keep some variables in memory intact
733	}	1620	local $self->{path};
		1621	local $self->{load_path};
734		1622
735	sub load_extension {	1623	$self->SUPER::thawer_merge ($merge);
		1624	}
		1625
		1626	sub normalise {
736	my ($path) = @_;	1627	my ($path, $base) = @_;
737		1628
738	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1629	$path = "$path"; # make sure its a string
739	my $base = $1;
740	my $pkg = $1;
741	$pkg =~ s/[^[:word:]]/_/g;
742	$pkg = "ext::$pkg";
743		1630
744	warn "loading '$path' into '$pkg'\n";	1631	$path =~ s/\.map$//;
745		1632
746	open my $fh, "<:utf8", $path	1633	# map plan:
747	or die "$path: $!";	1634	#
		1635	# /! non-realised random map exit (special hack!)
		1636	# {... are special paths that are not being touched
		1637	# ?xxx/... are special absolute paths
		1638	# ?random/... random maps
		1639	# /... normal maps
		1640	# ~user/... per-player map of a specific user
748		1641
749	my $source =	1642	$path =~ s/$PATH_SEP/\//go;
750	"package $pkg; use strict; use utf8;\n"
751	. "#line 1 \"$path\"\n{\n"
752	. (do { local $/; <$fh> })
753	. "\n};\n1";
754		1643
755	eval $source	1644	# treat it as relative path if it starts with
756	or die $@ ? "$path: $@\n"	1645	# something that looks reasonable
757	: "extension disabled.\n";	1646	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1647	$base or Carp::carp "normalise called with relative path and no base: '$path'";
758		1648
759	push @exts, $pkg;	1649	$base =~ s{[^/]+/?$}{};
760	$ext_pkg{$base} = $pkg;	1650	$path = "$base/$path";
761
762	# no strict 'refs';
763	# @{"$pkg\::ISA"} = ext::;
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	# }	1651	}
778		1652
779	# remove commands	1653	for ($path) {
780	for my $name (keys %COMMAND) {	1654	redo if s{//}{/};
781	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1655	redo if s{/\.?/}{/};
		1656	redo if s{/[^/]+/\.\./}{/};
		1657	}
782		1658
783	if (@cb) {	1659	$path
784	$COMMAND{$name} = \@cb;	1660	}
		1661
		1662	sub new_from_path {
		1663	my (undef, $path, $base) = @_;
		1664
		1665	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1666
		1667	$path = normalise $path, $base;
		1668
		1669	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1670	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1671	my $self = bless cf::map::new, $pkg;
		1672	$self->{path} = $path; $self->path ($path);
		1673	$self->init; # pass $1 etc.
		1674	return $self;
		1675	}
		1676	}
		1677
		1678	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1679	()
		1680	}
		1681
		1682	sub init {
		1683	my ($self) = @_;
		1684
		1685	$self
		1686	}
		1687
		1688	sub as_string {
		1689	my ($self) = @_;
		1690
		1691	"$self->{path}"
		1692	}
		1693
		1694	# the displayed name, this is a one way mapping
		1695	sub visible_name {
		1696	&as_string
		1697	}
		1698
		1699	# the original (read-only) location
		1700	sub load_path {
		1701	my ($self) = @_;
		1702
		1703	"$MAPDIR/$self->{path}.map"
		1704	}
		1705
		1706	# the temporary/swap location
		1707	sub save_path {
		1708	my ($self) = @_;
		1709
		1710	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1711	"$TMPDIR/$path.map"
		1712	}
		1713
		1714	# the unique path, undef == no special unique path
		1715	sub uniq_path {
		1716	my ($self) = @_;
		1717
		1718	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1719	"$UNIQUEDIR/$path"
		1720	}
		1721
		1722	# and all this just because we cannot iterate over
		1723	# all maps in C++...
		1724	sub change_all_map_light {
		1725	my ($change) = @_;
		1726
		1727	$_->change_map_light ($change)
		1728	for grep $_->outdoor, values %cf::MAP;
		1729	}
		1730
		1731	sub decay_objects {
		1732	my ($self) = @_;
		1733
		1734	return if $self->{deny_reset};
		1735
		1736	$self->do_decay_objects;
		1737	}
		1738
		1739	sub unlink_save {
		1740	my ($self) = @_;
		1741
		1742	utf8::encode (my $save = $self->save_path);
		1743	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1744	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1745	}
		1746
		1747	sub load_header_from($) {
		1748	my ($self, $path) = @_;
		1749
		1750	utf8::encode $path;
		1751	#aio_open $path, O_RDONLY, 0
		1752	# or return;
		1753
		1754	$self->_load_header ($path)
		1755	or return;
		1756
		1757	$self->{load_path} = $path;
		1758
		1759	1
		1760	}
		1761
		1762	sub load_header_orig {
		1763	my ($self) = @_;
		1764
		1765	$self->load_header_from ($self->load_path)
		1766	}
		1767
		1768	sub load_header_temp {
		1769	my ($self) = @_;
		1770
		1771	$self->load_header_from ($self->save_path)
		1772	}
		1773
		1774	sub prepare_temp {
		1775	my ($self) = @_;
		1776
		1777	$self->last_access ((delete $self->{last_access})
		1778	|| $cf::RUNTIME); #d#
		1779	# safety
		1780	$self->{instantiate_time} = $cf::RUNTIME
		1781	if $self->{instantiate_time} > $cf::RUNTIME;
		1782	}
		1783
		1784	sub prepare_orig {
		1785	my ($self) = @_;
		1786
		1787	$self->{load_original} = 1;
		1788	$self->{instantiate_time} = $cf::RUNTIME;
		1789	$self->last_access ($cf::RUNTIME);
		1790	$self->instantiate;
		1791	}
		1792
		1793	sub load_header {
		1794	my ($self) = @_;
		1795
		1796	if ($self->load_header_temp) {
		1797	$self->prepare_temp;
785	} else {	1798	} else {
786	delete $COMMAND{$name};	1799	$self->load_header_orig
787	}	1800	or return;
		1801	$self->prepare_orig;
		1802	}
		1803
		1804	$self->{deny_reset} = 1
		1805	if $self->no_reset;
		1806
		1807	$self->default_region (cf::region::find_by_path $self->{path})
		1808	unless $self->default_region;
		1809
788	}	1810	1
		1811	}
789		1812
790	# remove extcmds	1813	sub find;
791	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1814	sub find {
792	delete $EXTCMD{$name};	1815	my ($path, $origin) = @_;
		1816
		1817	$path = normalise $path, $origin && $origin->path;
		1818
		1819	cf::lock_wait "map_find:$path";
		1820
		1821	$cf::MAP{$path} || do {
		1822	my $guard = cf::lock_acquire "map_find:$path";
		1823	my $map = new_from_path cf::map $path
		1824	or return;
		1825
		1826	$map->{last_save} = $cf::RUNTIME;
		1827
		1828	$map->load_header
		1829	or return;
		1830
		1831	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1832	# doing this can freeze the server in a sync job, obviously
		1833	#$cf::WAIT_FOR_TICK->wait;
		1834	$map->reset;
		1835	undef $guard;
		1836	return find $path;
		1837	}
		1838
		1839	$cf::MAP{$path} = $map
		1840	}
		1841	}
		1842
		1843	sub pre_load { }
		1844	sub post_load { }
		1845
		1846	sub load {
		1847	my ($self) = @_;
		1848
		1849	local $self->{deny_reset} = 1; # loading can take a long time
		1850
		1851	my $path = $self->{path};
		1852
793	}	1853	{
		1854	my $guard = cf::lock_acquire "map_load:$path";
794		1855
795	if (my $cb = $pkg->can ("unload")) {	1856	return if $self->in_memory != cf::MAP_SWAPPED;
796	eval {	1857
797	$cb->($pkg);	1858	$self->in_memory (cf::MAP_LOADING);
		1859
		1860	$self->alloc;
		1861
		1862	$self->pre_load;
		1863	Coro::cede;
		1864
		1865	$self->_load_objects ($self->{load_path}, 1)
		1866	or return;
		1867
		1868	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1869	if delete $self->{load_original};
		1870
		1871	if (my $uniq = $self->uniq_path) {
		1872	utf8::encode $uniq;
		1873	if (aio_open $uniq, O_RDONLY, 0) {
		1874	$self->clear_unique_items;
		1875	$self->_load_objects ($uniq, 0);
798	1	1876	}
799	} or warn "$pkg unloaded, but with errors: $@";	1877	}
800	}
801		1878
802	Symbol::delete_package $pkg;	1879	Coro::cede;
803	}	1880	# now do the right thing for maps
		1881	$self->link_multipart_objects;
		1882	$self->difficulty ($self->estimate_difficulty)
		1883	unless $self->difficulty;
		1884	Coro::cede;
804		1885
805	sub load_extensions {	1886	unless ($self->{deny_activate}) {
806	for my $ext (<$LIBDIR/*.ext>) {	1887	$self->decay_objects;
807	next unless -r $ext;	1888	$self->fix_auto_apply;
808	eval {	1889	$self->update_buttons;
809	load_extension $ext;	1890	Coro::cede;
810	1	1891	$self->set_darkness_map;
811	} or warn "$ext not loaded: $@";	1892	Coro::cede;
812	}	1893	$self->activate;
813	}	1894	}
814		1895
815	#############################################################################	1896	$self->{last_save} = $cf::RUNTIME;
816	# load/save/clean perl data associated with a map	1897	$self->last_access ($cf::RUNTIME);
817		1898
818	*cf::mapsupport::on_clean = sub {	1899	$self->in_memory (cf::MAP_IN_MEMORY);
		1900	}
		1901
		1902	$self->post_load;
		1903	}
		1904
		1905	sub customise_for {
		1906	my ($self, $ob) = @_;
		1907
		1908	return find "~" . $ob->name . "/" . $self->{path}
		1909	if $self->per_player;
		1910
		1911	# return find "?party/" . $ob->name . "/" . $self->{path}
		1912	# if $self->per_party;
		1913
		1914	$self
		1915	}
		1916
		1917	# find and load all maps in the 3x3 area around a map
		1918	sub load_neighbours {
819	my ($map) = @_;	1919	my ($map) = @_;
820		1920
821	my $path = $map->tmpname;	1921	my @neigh; # diagonal neighbours
822	defined $path or return;
823		1922
824	unlink "$path.pst";	1923	for (0 .. 3) {
825	};	1924	my $neigh = $map->tile_path ($_)
		1925	or next;
		1926	$neigh = find $neigh, $map
		1927	or next;
		1928	$neigh->load;
826		1929
827	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1930	push @neigh,
		1931	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		1932	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1933	}
828		1934
829	#############################################################################	1935	for (grep defined $_->[0], @neigh) {
830	# load/save perl data associated with player->ob objects	1936	my ($path, $origin) = @$_;
831		1937	my $neigh = find $path, $origin
832	sub all_objects(@) {	1938	or next;
833	@_, map all_objects ($_->inv), @_	1939	$neigh->load;
		1940	}
834	}	1941	}
835		1942
836	# TODO: compatibility cruft, remove when no longer needed	1943	sub find_sync {
837	cf::player->attach (	1944	my ($path, $origin) = @_;
838	on_load => sub {
839	my ($pl, $path) = @_;
840		1945
841	for my $o (all_objects $pl->ob) {	1946	cf::sync_job { find $path, $origin }
842	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1947	}
843	$o->set_ob_key_value ("_perl_data");
844		1948
845	%$o = %{ Storable::thaw pack "H*", $value };	1949	sub do_load_sync {
		1950	my ($map) = @_;
		1951
		1952	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		1953	if $Coro::current == $Coro::main;
		1954
		1955	cf::sync_job { $map->load };
		1956	}
		1957
		1958	our %MAP_PREFETCH;
		1959	our $MAP_PREFETCHER = undef;
		1960
		1961	sub find_async {
		1962	my ($path, $origin, $load) = @_;
		1963
		1964	$path = normalise $path, $origin && $origin->{path};
		1965
		1966	if (my $map = $cf::MAP{$path}) {
		1967	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		1968	}
		1969
		1970	$MAP_PREFETCH{$path} |= $load;
		1971
		1972	$MAP_PREFETCHER ||= cf::async {
		1973	while (%MAP_PREFETCH) {
		1974	while (my ($k, $v) = each %MAP_PREFETCH) {
		1975	if (my $map = find $k) {
		1976	$map->load if $v;
		1977	}
		1978
		1979	delete $MAP_PREFETCH{$k};
846	}	1980	}
847	}	1981	}
		1982	undef $MAP_PREFETCHER;
		1983	};
		1984	$MAP_PREFETCHER->prio (6);
		1985
		1986	()
		1987	}
		1988
		1989	sub save {
		1990	my ($self) = @_;
		1991
		1992	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1993
		1994	$self->{last_save} = $cf::RUNTIME;
		1995
		1996	return unless $self->dirty;
		1997
		1998	my $save = $self->save_path; utf8::encode $save;
		1999	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2000
		2001	$self->{load_path} = $save;
		2002
		2003	return if $self->{deny_save};
		2004
		2005	local $self->{last_access} = $self->last_access;#d#
		2006
		2007	cf::async {
		2008	$_->contr->save for $self->players;
		2009	};
		2010
		2011	if ($uniq) {
		2012	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2013	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2014	} else {
		2015	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
848	},	2016	}
849	);	2017	}
850		2018
851	#############################################################################	2019	sub swap_out {
		2020	my ($self) = @_;
852		2021
853	=head2 CORE EXTENSIONS	2022	# save first because save cedes
		2023	$self->save;
854		2024
855	Functions and methods that extend core crossfire objects.	2025	my $lock = cf::lock_acquire "map_data:" . $self->path;
856		2026
857	=head3 cf::player	2027	return if $self->players;
		2028	return if $self->in_memory != cf::MAP_IN_MEMORY;
		2029	return if $self->{deny_save};
		2030
		2031	$self->clear;
		2032	$self->in_memory (cf::MAP_SWAPPED);
		2033	}
		2034
		2035	sub reset_at {
		2036	my ($self) = @_;
		2037
		2038	# TODO: safety, remove and allow resettable per-player maps
		2039	return 1e99 if $self->{deny_reset};
		2040
		2041	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2042	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2043
		2044	$time + $to
		2045	}
		2046
		2047	sub should_reset {
		2048	my ($self) = @_;
		2049
		2050	$self->reset_at <= $cf::RUNTIME
		2051	}
		2052
		2053	sub reset {
		2054	my ($self) = @_;
		2055
		2056	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2057
		2058	return if $self->players;
		2059
		2060	warn "resetting map ", $self->path;
		2061
		2062	$self->in_memory (cf::MAP_SWAPPED);
		2063
		2064	# need to save uniques path
		2065	unless ($self->{deny_save}) {
		2066	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2067
		2068	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2069	if $uniq;
		2070	}
		2071
		2072	delete $cf::MAP{$self->path};
		2073
		2074	$self->clear;
		2075
		2076	$_->clear_links_to ($self) for values %cf::MAP;
		2077
		2078	$self->unlink_save;
		2079	$self->destroy;
		2080	}
		2081
		2082	my $nuke_counter = "aaaa";
		2083
		2084	sub nuke {
		2085	my ($self) = @_;
		2086
		2087	delete $cf::MAP{$self->path};
		2088
		2089	$self->unlink_save;
		2090
		2091	bless $self, "cf::map";
		2092	delete $self->{deny_reset};
		2093	$self->{deny_save} = 1;
		2094	$self->reset_timeout (1);
		2095	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2096
		2097	$cf::MAP{$self->path} = $self;
		2098
		2099	$self->reset; # polite request, might not happen
		2100	}
		2101
		2102	=item $maps = cf::map::tmp_maps
		2103
		2104	Returns an arrayref with all map paths of currently instantiated and saved
		2105	maps. May block.
		2106
		2107	=cut
		2108
		2109	sub tmp_maps() {
		2110	[
		2111	map {
		2112	utf8::decode $_;
		2113	/\.map$/
		2114	? normalise $_
		2115	: ()
		2116	} @{ aio_readdir $TMPDIR or [] }
		2117	]
		2118	}
		2119
		2120	=item $maps = cf::map::random_maps
		2121
		2122	Returns an arrayref with all map paths of currently instantiated and saved
		2123	random maps. May block.
		2124
		2125	=cut
		2126
		2127	sub random_maps() {
		2128	[
		2129	map {
		2130	utf8::decode $_;
		2131	/\.map$/
		2132	? normalise "?random/$_"
		2133	: ()
		2134	} @{ aio_readdir $RANDOMDIR or [] }
		2135	]
		2136	}
		2137
		2138	=item cf::map::unique_maps
		2139
		2140	Returns an arrayref of paths of all shared maps that have
		2141	instantiated unique items. May block.
		2142
		2143	=cut
		2144
		2145	sub unique_maps() {
		2146	[
		2147	map {
		2148	utf8::decode $_;
		2149	/\.map$/
		2150	? normalise $_
		2151	: ()
		2152	} @{ aio_readdir $UNIQUEDIR or [] }
		2153	]
		2154	}
		2155
		2156	package cf;
		2157
		2158	=back
		2159
		2160	=head3 cf::object
		2161
		2162	=cut
		2163
		2164	package cf::object;
858		2165
859	=over 4	2166	=over 4
860		2167
861	=item cf::player::exists $login	2168	=item $ob->inv_recursive
862		2169
863	Returns true when the given account exists.	2170	Returns the inventory of the object _and_ their inventories, recursively.
864		2171
865	=cut	2172	=cut
866		2173
867	sub cf::player::exists($) {	2174	sub inv_recursive_;
868	cf::player::find $_[0]	2175	sub inv_recursive_ {
869	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2176	map { $_, inv_recursive_ $_->inv } @_
870	}	2177	}
871		2178
872	=item $player->ext_reply ($msgid, $msgtype, %msg)	2179	sub inv_recursive {
873		2180	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	}	2181	}
		2182
		2183	package cf;
885		2184
886	=back	2185	=back
887		2186
888	=head3 cf::object::player	2187	=head3 cf::object::player
889		2188
…		…
905		2204
906	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2205	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
907		2206
908	if ($self->{record_replies}) {	2207	if ($self->{record_replies}) {
909	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2208	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2209
910	} else {	2210	} else {
		2211	my $pl = $self->contr;
		2212
		2213	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2214	my $dialog = $pl->{npc_dialog};
		2215	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2216
		2217	} else {
911	$msg = $npc->name . " says: $msg" if $npc;	2218	$msg = $npc->name . " says: $msg" if $npc;
912	$self->message ($msg, $flags);	2219	$self->message ($msg, $flags);
		2220	}
913	}	2221	}
		2222	}
		2223
		2224	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2225
		2226	=cut
		2227
		2228	sub cf::object::send_msg {
		2229	my $pl = shift->contr
		2230	or return;
		2231	$pl->send_msg (@_);
914	}	2232	}
915		2233
916	=item $player_object->may ("access")	2234	=item $player_object->may ("access")
917		2235
918	Returns wether the given player is authorized to access resource "access"	2236	Returns wether the given player is authorized to access resource "access"
…		…
927	(ref $cf::CFG{"may_$access"}	2245	(ref $cf::CFG{"may_$access"}
928	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2246	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
929	: $cf::CFG{"may_$access"})	2247	: $cf::CFG{"may_$access"})
930	}	2248	}
931		2249
		2250	=item $player_object->enter_link
		2251
		2252	Freezes the player and moves him/her to a special map (C<{link}>).
		2253
		2254	The player should be reasonably safe there for short amounts of time. You
		2255	I<MUST> call C<leave_link> as soon as possible, though.
		2256
		2257	Will never block.
		2258
		2259	=item $player_object->leave_link ($map, $x, $y)
		2260
		2261	Moves the player out of the special C<{link}> map onto the specified
		2262	map. If the map is not valid (or omitted), the player will be moved back
		2263	to the location he/she was before the call to C<enter_link>, or, if that
		2264	fails, to the emergency map position.
		2265
		2266	Might block.
		2267
		2268	=cut
		2269
		2270	sub link_map {
		2271	unless ($LINK_MAP) {
		2272	$LINK_MAP = cf::map::find "{link}"
		2273	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2274	$LINK_MAP->load;
		2275	}
		2276
		2277	$LINK_MAP
		2278	}
		2279
		2280	sub cf::object::player::enter_link {
		2281	my ($self) = @_;
		2282
		2283	$self->deactivate_recursive;
		2284
		2285	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2286
		2287	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2288	if $self->map && $self->map->{path} ne "{link}";
		2289
		2290	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2291	}
		2292
		2293	sub cf::object::player::leave_link {
		2294	my ($self, $map, $x, $y) = @_;
		2295
		2296	return unless $self->contr->active;
		2297
		2298	my $link_pos = delete $self->{_link_pos};
		2299
		2300	unless ($map) {
		2301	# restore original map position
		2302	($map, $x, $y) = @{ $link_pos || [] };
		2303	$map = cf::map::find $map;
		2304
		2305	unless ($map) {
		2306	($map, $x, $y) = @$EMERGENCY_POSITION;
		2307	$map = cf::map::find $map
		2308	or die "FATAL: cannot load emergency map\n";
		2309	}
		2310	}
		2311
		2312	($x, $y) = (-1, -1)
		2313	unless (defined $x) && (defined $y);
		2314
		2315	# use -1 or undef as default coordinates, not 0, 0
		2316	($x, $y) = ($map->enter_x, $map->enter_y)
		2317	if $x <=0 && $y <= 0;
		2318
		2319	$map->load;
		2320	$map->load_neighbours;
		2321
		2322	return unless $self->contr->active;
		2323	$self->activate_recursive;
		2324
		2325	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2326	$self->enter_map ($map, $x, $y);
		2327	}
		2328
		2329	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
		2330
		2331	Moves the player to the given map-path and coordinates by first freezing
		2332	her, loading and preparing them map, calling the provided $check callback
		2333	that has to return the map if sucecssful, and then unfreezes the player on
		2334	the new (success) or old (failed) map position. In either case, $done will
		2335	be called at the end of this process.
		2336
		2337	=cut
		2338
		2339	our $GOTOGEN;
		2340
		2341	sub cf::object::player::goto {
		2342	my ($self, $path, $x, $y, $check, $done) = @_;
		2343
		2344	# do generation counting so two concurrent goto's will be executed in-order
		2345	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2346
		2347	$self->enter_link;
		2348
		2349	(async {
		2350	my $map = eval {
		2351	my $map = cf::map::find $path;
		2352
		2353	if ($map) {
		2354	$map = $map->customise_for ($self);
		2355	$map = $check->($map) if $check && $map;
		2356	} else {
		2357	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2358	}
		2359
		2360	$map
		2361	};
		2362
		2363	if ($@) {
		2364	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2365	LOG llevError | logBacktrace, Carp::longmess $@;
		2366	}
		2367
		2368	if ($gen == $self->{_goto_generation}) {
		2369	delete $self->{_goto_generation};
		2370	$self->leave_link ($map, $x, $y);
		2371	}
		2372
		2373	$done->() if $done;
		2374	})->prio (1);
		2375	}
		2376
		2377	=item $player_object->enter_exit ($exit_object)
		2378
		2379	=cut
		2380
		2381	sub parse_random_map_params {
		2382	my ($spec) = @_;
		2383
		2384	my $rmp = { # defaults
		2385	xsize => (cf::rndm 15, 40),
		2386	ysize => (cf::rndm 15, 40),
		2387	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2388	#layout => string,
		2389	};
		2390
		2391	for (split /\n/, $spec) {
		2392	my ($k, $v) = split /\s+/, $_, 2;
		2393
		2394	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2395	}
		2396
		2397	$rmp
		2398	}
		2399
		2400	sub prepare_random_map {
		2401	my ($exit) = @_;
		2402
		2403	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2404
		2405	# all this does is basically replace the /! path by
		2406	# a new random map path (?random/...) with a seed
		2407	# that depends on the exit object
		2408
		2409	my $rmp = parse_random_map_params $exit->msg;
		2410
		2411	if ($exit->map) {
		2412	$rmp->{region} = $exit->region->name;
		2413	$rmp->{origin_map} = $exit->map->path;
		2414	$rmp->{origin_x} = $exit->x;
		2415	$rmp->{origin_y} = $exit->y;
		2416	}
		2417
		2418	$rmp->{random_seed} ||= $exit->random_seed;
		2419
		2420	my $data = cf::to_json $rmp;
		2421	my $md5 = Digest::MD5::md5_hex $data;
		2422	my $meta = "$RANDOMDIR/$md5.meta";
		2423
		2424	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2425	aio_write $fh, 0, (length $data), $data, 0;
		2426	undef $fh;
		2427	aio_rename "$meta~", $meta;
		2428
		2429	$exit->slaying ("?random/$md5");
		2430	$exit->msg (undef);
		2431	}
		2432	}
		2433
		2434	sub cf::object::player::enter_exit {
		2435	my ($self, $exit) = @_;
		2436
		2437	return unless $self->type == cf::PLAYER;
		2438
		2439	if ($exit->slaying eq "/!") {
		2440	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2441	# the problem is that $exit might not survive long enough
		2442	# so it needs to be done right now, right here
		2443	cf::sync_job { prepare_random_map $exit };
		2444	}
		2445
		2446	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2447	my $hp = $exit->stats->hp;
		2448	my $sp = $exit->stats->sp;
		2449
		2450	$self->enter_link;
		2451
		2452	# if exit is damned, update players death & WoR home-position
		2453	$self->contr->savebed ($slaying, $hp, $sp)
		2454	if $exit->flag (FLAG_DAMNED);
		2455
		2456	(async {
		2457	$self->deactivate_recursive; # just to be sure
		2458	unless (eval {
		2459	$self->goto ($slaying, $hp, $sp);
		2460
		2461	1;
		2462	}) {
		2463	$self->message ("Something went wrong deep within the crossfire server. "
		2464	. "I'll try to bring you back to the map you were before. "
		2465	. "Please report this to the dungeon master!",
		2466	cf::NDI_UNIQUE | cf::NDI_RED);
		2467
		2468	warn "ERROR in enter_exit: $@";
		2469	$self->leave_link;
		2470	}
		2471	})->prio (1);
		2472	}
		2473
932	=head3 cf::client	2474	=head3 cf::client
933		2475
934	=over 4	2476	=over 4
935		2477
936	=item $client->send_drawinfo ($text, $flags)	2478	=item $client->send_drawinfo ($text, $flags)
…		…
942		2484
943	sub cf::client::send_drawinfo {	2485	sub cf::client::send_drawinfo {
944	my ($self, $text, $flags) = @_;	2486	my ($self, $text, $flags) = @_;
945		2487
946	utf8::encode $text;	2488	utf8::encode $text;
947	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2489	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
948	}	2490	}
949		2491
		2492	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2493
		2494	Send a drawinfo or msg packet to the client, formatting the msg for the
		2495	client if neccessary. C<$type> should be a string identifying the type of
		2496	the message, with C<log> being the default. If C<$color> is negative, suppress
		2497	the message unless the client supports the msg packet.
		2498
		2499	=cut
		2500
		2501	sub cf::client::send_msg {
		2502	my ($self, $channel, $msg, $color, @extra) = @_;
		2503
		2504	$msg = $self->pl->expand_cfpod ($msg);
		2505
		2506	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2507
		2508	if (ref $channel) {
		2509	# send meta info to client, if not yet sent
		2510	unless (exists $self->{channel}{$channel->{id}}) {
		2511	$self->{channel}{$channel->{id}} = $channel;
		2512	$self->ext_msg (channel_info => $channel);
		2513	}
		2514
		2515	$channel = $channel->{id};
		2516	}
		2517
		2518	return unless @extra || length $msg;
		2519
		2520	if ($self->can_msg) {
		2521	# default colour, mask it out
		2522	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2523	if $color & cf::NDI_DEF;
		2524
		2525	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2526	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2527	} else {
		2528	if ($color >= 0) {
		2529	# replace some tags by gcfclient-compatible ones
		2530	for ($msg) {
		2531	1 while
		2532	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2533	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2534	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2535	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2536	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2537	}
		2538
		2539	$color &= cf::NDI_COLOR_MASK;
		2540
		2541	utf8::encode $msg;
		2542
		2543	if (0 && $msg =~ /\[/) {
		2544	# COMMAND/INFO
		2545	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2546	} else {
		2547	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2548	$self->send_packet ("drawinfo $color $msg")
		2549	}
		2550	}
		2551	}
		2552	}
		2553
		2554	=item $client->ext_msg ($type, @msg)
		2555
		2556	Sends an ext event to the client.
		2557
		2558	=cut
		2559
		2560	sub cf::client::ext_msg($$@) {
		2561	my ($self, $type, @msg) = @_;
		2562
		2563	if ($self->extcmd == 2) {
		2564	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2565	} elsif ($self->extcmd == 1) { # TODO: remove
		2566	push @msg, msgtype => "event_$type";
		2567	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2568	}
		2569	}
		2570
		2571	=item $client->ext_reply ($msgid, @msg)
		2572
		2573	Sends an ext reply to the client.
		2574
		2575	=cut
		2576
		2577	sub cf::client::ext_reply($$@) {
		2578	my ($self, $id, @msg) = @_;
		2579
		2580	if ($self->extcmd == 2) {
		2581	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2582	} elsif ($self->extcmd == 1) {
		2583	#TODO: version 1, remove
		2584	unshift @msg, msgtype => "reply", msgid => $id;
		2585	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2586	}
		2587	}
950		2588
951	=item $success = $client->query ($flags, "text", \&cb)	2589	=item $success = $client->query ($flags, "text", \&cb)
952		2590
953	Queues a query to the client, calling the given callback with	2591	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>,	2592	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
955	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2593	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
956		2594
957	Queries can fail, so check the return code. Or don't, as queries will become	2595	Queries can fail, so check the return code. Or don't, as queries will
958	reliable at some point in the future.	2596	become reliable at some point in the future.
959		2597
960	=cut	2598	=cut
961		2599
962	sub cf::client::query {	2600	sub cf::client::query {
963	my ($self, $flags, $text, $cb) = @_;	2601	my ($self, $flags, $text, $cb) = @_;
…		…
971	utf8::encode $text;	2609	utf8::encode $text;
972	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2610	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
973		2611
974	$self->send_packet ($self->{query_queue}[0][0])	2612	$self->send_packet ($self->{query_queue}[0][0])
975	if @{ $self->{query_queue} } == 1;	2613	if @{ $self->{query_queue} } == 1;
		2614
		2615	1
976	}	2616	}
977		2617
978	cf::client->attach (	2618	cf::client->attach (
		2619	on_connect => sub {
		2620	my ($ns) = @_;
		2621
		2622	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2623	},
979	on_reply => sub {	2624	on_reply => sub {
980	my ($ns, $msg) = @_;	2625	my ($ns, $msg) = @_;
981		2626
982	# this weird shuffling is so that direct followup queries	2627	# this weird shuffling is so that direct followup queries
983	# get handled first	2628	# get handled first
984	my $queue = delete $ns->{query_queue};	2629	my $queue = delete $ns->{query_queue}
		2630	or return; # be conservative, not sure how that can happen, but we saw a crash here
985		2631
986	(shift @$queue)->[1]->($msg);	2632	(shift @$queue)->[1]->($msg);
		2633	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
987		2634
988	push @{ $ns->{query_queue} }, @$queue;	2635	push @{ $ns->{query_queue} }, @$queue;
989		2636
990	if (@{ $ns->{query_queue} } == @$queue) {	2637	if (@{ $ns->{query_queue} } == @$queue) {
991	if (@$queue) {	2638	if (@$queue) {
…		…
993	} else {	2640	} else {
994	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2641	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
995	}	2642	}
996	}	2643	}
997	},	2644	},
		2645	on_exticmd => sub {
		2646	my ($ns, $buf) = @_;
		2647
		2648	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2649
		2650	if (ref $msg) {
		2651	my ($type, $reply, @payload) =
		2652	"ARRAY" eq ref $msg
		2653	? @$msg
		2654	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2655
		2656	my @reply;
		2657
		2658	if (my $cb = $EXTICMD{$type}) {
		2659	@reply = $cb->($ns, @payload);
		2660	}
		2661
		2662	$ns->ext_reply ($reply, @reply)
		2663	if $reply;
		2664
		2665	} else {
		2666	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2667	}
		2668
		2669	cf::override;
		2670	},
998	);	2671	);
999		2672
1000	=item $client->coro (\&cb)	2673	=item $client->async (\&cb)
1001		2674
1002	Create a new coroutine, running the specified callback. The coroutine will	2675	Create a new coroutine, running the specified callback. The coroutine will
1003	be automatically cancelled when the client gets destroyed (e.g. on logout,	2676	be automatically cancelled when the client gets destroyed (e.g. on logout,
1004	or loss of connection).	2677	or loss of connection).
1005		2678
1006	=cut	2679	=cut
1007		2680
1008	sub cf::client::coro {	2681	sub cf::client::async {
1009	my ($self, $cb) = @_;	2682	my ($self, $cb) = @_;
1010		2683
1011	my $coro; $coro = async {	2684	my $coro = &Coro::async ($cb);
1012	eval {
1013	$cb->();
1014	};
1015	warn $@ if $@;
1016	};
1017		2685
1018	$coro->on_destroy (sub {	2686	$coro->on_destroy (sub {
1019	delete $self->{_coro}{$coro+0};	2687	delete $self->{_coro}{$coro+0};
1020	});	2688	});
1021		2689
…		…
1048	our $safe = new Safe "safe";	2716	our $safe = new Safe "safe";
1049	our $safe_hole = new Safe::Hole;	2717	our $safe_hole = new Safe::Hole;
1050		2718
1051	$SIG{FPE} = 'IGNORE';	2719	$SIG{FPE} = 'IGNORE';
1052		2720
1053	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2721	$safe->permit_only (Opcode::opset qw(
		2722	:base_core :base_mem :base_orig :base_math
		2723	grepstart grepwhile mapstart mapwhile
		2724	sort time
		2725	));
1054		2726
1055	# here we export the classes and methods available to script code	2727	# here we export the classes and methods available to script code
1056		2728
1057	=pod	2729	=pod
1058		2730
1059	The following fucntions and emthods are available within a safe environment:	2731	The following functions and methods are available within a safe environment:
1060		2732
1061	cf::object contr pay_amount pay_player map	2733	cf::object
		2734	contr pay_amount pay_player map x y force_find force_add
		2735	insert remove name archname title slaying race decrease_ob_nr
		2736
1062	cf::object::player player	2737	cf::object::player
1063	cf::player peaceful	2738	player
1064	cf::map trigger	2739
		2740	cf::player
		2741	peaceful
		2742
		2743	cf::map
		2744	trigger
1065		2745
1066	=cut	2746	=cut
1067		2747
1068	for (	2748	for (
1069	["cf::object" => qw(contr pay_amount pay_player map)],	2749	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2750	insert remove inv name archname title slaying race
		2751	decrease_ob_nr)],
1070	["cf::object::player" => qw(player)],	2752	["cf::object::player" => qw(player)],
1071	["cf::player" => qw(peaceful)],	2753	["cf::player" => qw(peaceful)],
1072	["cf::map" => qw(trigger)],	2754	["cf::map" => qw(trigger)],
1073	) {	2755	) {
1074	no strict 'refs';	2756	no strict 'refs';
…		…
1145	=back	2827	=back
1146		2828
1147	=cut	2829	=cut
1148		2830
1149	#############################################################################	2831	#############################################################################
		2832	# the server's init and main functions
1150		2833
1151	=head2 EXTENSION DATABASE SUPPORT	2834	sub load_facedata($) {
		2835	my ($path) = @_;
1152		2836
1153	Crossfire maintains a very simple database for extension use. It can	2837	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1154	currently store anything that can be serialised using Storable, which
1155	excludes objects.
1156		2838
1157	The parameter C<$family> should best start with the name of the extension	2839	warn "loading facedata from $path\n";
1158	using it, it should be unique.
1159		2840
1160	=over 4	2841	my $facedata;
		2842	0 < aio_load $path, $facedata
		2843	or die "$path: $!";
1161		2844
1162	=item $hashref = cf::db_get $family	2845	$facedata = Coro::Storable::thaw $facedata;
1163		2846
1164	Return a hashref for use by the extension C<$family>, which can be	2847	$facedata->{version} == 2
1165	modified. After modifications, you have to call C<cf::db_dirty> or	2848	or cf::cleanup "$path: version mismatch, cannot proceed.";
1166	C<cf::db_sync>.
1167		2849
1168	=item $value = cf::db_get $family => $key	2850	# patch in the exptable
1169		2851	$facedata->{resource}{"res/exp_table"} = {
1170	Returns a single value from the database	2852	type => FT_RSRC,
1171		2853	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
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
1177	=item cf::db_put $family => $key => $value
1178
1179	Stores the given C<$value> in the family hash. Updates are delayed, if you
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
1190	=cut
1191
1192	our $DB;
1193
1194	{
1195	my $path = cf::localdir . "/database.pst";
1196
1197	sub db_load() {
1198	warn "loading database $path\n";#d# remove later
1199	$DB = stat $path ? Storable::retrieve $path : { };
1200	}
1201
1202	my $pid;
1203
1204	sub db_save() {
1205	warn "saving database $path\n";#d# remove later
1206	waitpid $pid, 0 if $pid;
1207	if (0 == ($pid = fork)) {
1208	$DB->{_meta}{version} = 1;
1209	Storable::nstore $DB, "$path~";
1210	rename "$path~", $path;
1211	cf::_exit 0 if defined $pid;
1212	}
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	});	2854	};
		2855	cf::cede_to_tick;
1225		2856
1226	sub db_dirty() {
1227	$dirty = 1;
1228	$idle->start;
1229	}	2857	{
		2858	my $faces = $facedata->{faceinfo};
1230		2859
1231	sub db_get($;$) {	2860	while (my ($face, $info) = each %$faces) {
1232	@_ >= 2	2861	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1233	? $DB->{$_[0]}{$_[1]}	2862	cf::face::set_visibility $idx, $info->{visibility};
1234	: ($DB->{$_[0]} ||= { })	2863	cf::face::set_magicmap $idx, $info->{magicmap};
1235	}	2864	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		2865	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1236		2866
1237	sub db_put($$;$) {	2867	cf::cede_to_tick;
1238	if (@_ >= 3) {
1239	$DB->{$_[0]}{$_[1]} = $_[2];
1240	} else {
1241	$DB->{$_[0]} = $_[1];
1242	}
1243	db_dirty;
1244	}
1245
1246	cf::global->attach (
1247	prio => 10000,
1248	on_cleanup => sub {
1249	db_sync;
1250	},	2868	}
1251	);
1252	}
1253		2869
1254	#############################################################################	2870	while (my ($face, $info) = each %$faces) {
1255	# the server's main()	2871	next unless $info->{smooth};
		2872	my $idx = cf::face::find $face
		2873	or next;
		2874	if (my $smooth = cf::face::find $info->{smooth}) {
		2875	cf::face::set_smooth $idx, $smooth;
		2876	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2877	} else {
		2878	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2879	}
		2880
		2881	cf::cede_to_tick;
		2882	}
		2883	}
		2884
		2885	{
		2886	my $anims = $facedata->{animinfo};
		2887
		2888	while (my ($anim, $info) = each %$anims) {
		2889	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2890	cf::cede_to_tick;
		2891	}
		2892
		2893	cf::anim::invalidate_all; # d'oh
		2894	}
		2895
		2896	{
		2897	# TODO: for gcfclient pleasure, we should give resources
		2898	# that gcfclient doesn't grok a >10000 face index.
		2899	my $res = $facedata->{resource};
		2900
		2901	my $soundconf = delete $res->{"res/sound.conf"};
		2902
		2903	while (my ($name, $info) = each %$res) {
		2904	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2905	my $data;
		2906
		2907	if ($info->{type} & 1) {
		2908	# prepend meta info
		2909
		2910	my $meta = $enc->encode ({
		2911	name => $name,
		2912	%{ $info->{meta} || {} },
		2913	});
		2914
		2915	$data = pack "(w/a*)*", $meta, $info->{data};
		2916	} else {
		2917	$data = $info->{data};
		2918	}
		2919
		2920	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		2921	cf::face::set_type $idx, $info->{type};
		2922
		2923	cf::cede_to_tick;
		2924	}
		2925
		2926	if ($soundconf) {
		2927	$soundconf = $enc->decode (delete $soundconf->{data});
		2928
		2929	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2930	my $sound = $soundconf->{compat}[$_]
		2931	or next;
		2932
		2933	my $face = cf::face::find "sound/$sound->[1]";
		2934	cf::sound::set $sound->[0] => $face;
		2935	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2936	}
		2937
		2938	while (my ($k, $v) = each %{$soundconf->{event}}) {
		2939	my $face = cf::face::find "sound/$v";
		2940	cf::sound::set $k => $face;
		2941	}
		2942	}
		2943	}
		2944
		2945	1
		2946	}
		2947
		2948	register_exticmd fx_want => sub {
		2949	my ($ns, $want) = @_;
		2950
		2951	while (my ($k, $v) = each %$want) {
		2952	$ns->fx_want ($k, $v);
		2953	}
		2954	};
		2955
		2956	sub reload_regions {
		2957	load_resource_file "$MAPDIR/regions"
		2958	or die "unable to load regions file\n";
		2959
		2960	for (cf::region::list) {
		2961	$_->{match} = qr/$_->{match}/
		2962	if exists $_->{match};
		2963	}
		2964	}
		2965
		2966	sub reload_facedata {
		2967	load_facedata "$DATADIR/facedata"
		2968	or die "unable to load facedata\n";
		2969	}
		2970
		2971	sub reload_archetypes {
		2972	load_resource_file "$DATADIR/archetypes"
		2973	or die "unable to load archetypes\n";
		2974	#d# NEED to laod twice to resolve forward references
		2975	# this really needs to be done in an extra post-pass
		2976	# (which needs to be synchronous, so solve it differently)
		2977	load_resource_file "$DATADIR/archetypes"
		2978	or die "unable to load archetypes\n";
		2979	}
		2980
		2981	sub reload_treasures {
		2982	load_resource_file "$DATADIR/treasures"
		2983	or die "unable to load treasurelists\n";
		2984	}
		2985
		2986	sub reload_resources {
		2987	warn "reloading resource files...\n";
		2988
		2989	reload_regions;
		2990	reload_facedata;
		2991	#reload_archetypes;#d#
		2992	reload_archetypes;
		2993	reload_treasures;
		2994
		2995	warn "finished reloading resource files\n";
		2996	}
		2997
		2998	sub init {
		2999	reload_resources;
		3000	}
1256		3001
1257	sub cfg_load {	3002	sub cfg_load {
1258	open my $fh, "<:utf8", cf::confdir . "/config"	3003	open my $fh, "<:utf8", "$CONFDIR/config"
1259	or return;	3004	or return;
1260		3005
1261	local $/;	3006	local $/;
1262	*CFG = YAML::Syck::Load <$fh>;	3007	*CFG = YAML::Syck::Load <$fh>;
		3008
		3009	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3010
		3011	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3012	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3013
		3014	if (exists $CFG{mlockall}) {
		3015	eval {
		3016	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3017	and die "WARNING: m(un)lockall failed: $!\n";
		3018	};
		3019	warn $@ if $@;
		3020	}
1263	}	3021	}
1264		3022
1265	sub main {	3023	sub main {
		3024	# we must not ever block the main coroutine
		3025	local $Coro::idle = sub {
		3026	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3027	(async {
		3028	Event::one_event;
		3029	})->prio (Coro::PRIO_MAX);
		3030	};
		3031
1266	cfg_load;	3032	cfg_load;
1267	db_load;	3033	db_init;
1268	load_extensions;	3034	load_extensions;
		3035
		3036	$TICK_WATCHER->start;
1269	Event::loop;	3037	Event::loop;
1270	}	3038	}
1271		3039
1272	#############################################################################	3040	#############################################################################
1273	# initialisation	3041	# initialisation and cleanup
1274		3042
1275	sub _perl_reload() {	3043	# install some emergency cleanup handlers
		3044	BEGIN {
		3045	for my $signal (qw(INT HUP TERM)) {
		3046	Event->signal (
		3047	reentrant => 0,
		3048	data => WF_AUTOCANCEL,
		3049	signal => $signal,
		3050	prio => 0,
		3051	cb => sub {
		3052	cf::cleanup "SIG$signal";
		3053	},
		3054	);
		3055	}
		3056	}
		3057
		3058	sub write_runtime {
		3059	my $runtime = "$LOCALDIR/runtime";
		3060
		3061	# first touch the runtime file to show we are still running:
		3062	# the fsync below can take a very very long time.
		3063
		3064	IO::AIO::aio_utime $runtime, undef, undef;
		3065
		3066	my $guard = cf::lock_acquire "write_runtime";
		3067
		3068	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3069	or return;
		3070
		3071	my $value = $cf::RUNTIME + 90 + 10;
		3072	# 10 is the runtime save interval, for a monotonic clock
		3073	# 60 allows for the watchdog to kill the server.
		3074
		3075	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3076	and return;
		3077
		3078	# always fsync - this file is important
		3079	aio_fsync $fh
		3080	and return;
		3081
		3082	# touch it again to show we are up-to-date
		3083	aio_utime $fh, undef, undef;
		3084
		3085	close $fh
		3086	or return;
		3087
		3088	aio_rename "$runtime~", $runtime
		3089	and return;
		3090
		3091	warn "runtime file written.\n";
		3092
		3093	1
		3094	}
		3095
		3096	sub emergency_save() {
		3097	my $freeze_guard = cf::freeze_mainloop;
		3098
		3099	warn "enter emergency perl save\n";
		3100
		3101	cf::sync_job {
		3102	# use a peculiar iteration method to avoid tripping on perl
		3103	# refcount bugs in for. also avoids problems with players
		3104	# and maps saved/destroyed asynchronously.
		3105	warn "begin emergency player save\n";
		3106	for my $login (keys %cf::PLAYER) {
		3107	my $pl = $cf::PLAYER{$login} or next;
		3108	$pl->valid or next;
		3109	$pl->save;
		3110	}
		3111	warn "end emergency player save\n";
		3112
		3113	warn "begin emergency map save\n";
		3114	for my $path (keys %cf::MAP) {
		3115	my $map = $cf::MAP{$path} or next;
		3116	$map->valid or next;
		3117	$map->save;
		3118	}
		3119	warn "end emergency map save\n";
		3120
		3121	warn "begin emergency database checkpoint\n";
		3122	BDB::db_env_txn_checkpoint $DB_ENV;
		3123	warn "end emergency database checkpoint\n";
		3124	};
		3125
		3126	warn "leave emergency perl save\n";
		3127	}
		3128
		3129	sub post_cleanup {
		3130	my ($make_core) = @_;
		3131
		3132	warn Carp::longmess "post_cleanup backtrace"
		3133	if $make_core;
		3134	}
		3135
		3136	sub do_reload_perl() {
		3137	# can/must only be called in main
		3138	if ($Coro::current != $Coro::main) {
		3139	warn "can only reload from main coroutine";
		3140	return;
		3141	}
		3142
1276	warn "reloading...";	3143	warn "reloading...";
1277		3144
1278	eval {	3145	warn "entering sync_job";
1279	local $FREEZE = 1;
1280		3146
		3147	cf::sync_job {
		3148	cf::write_runtime; # external watchdog should not bark
1281	cf::emergency_save;	3149	cf::emergency_save;
		3150	cf::write_runtime; # external watchdog should not bark
1282		3151
1283	# cancel all watchers	3152	warn "syncing database to disk";
		3153	BDB::db_env_txn_checkpoint $DB_ENV;
		3154
		3155	# if anything goes wrong in here, we should simply crash as we already saved
		3156
		3157	warn "cancelling all WF_AUTOCANCEL watchers";
1284	for (Event::all_watchers) {	3158	for (Event::all_watchers) {
1285	$_->cancel if $_->data & WF_AUTOCANCEL;	3159	$_->cancel if $_->data & WF_AUTOCANCEL;
1286	}	3160	}
1287		3161
		3162	warn "flushing outstanding aio requests";
		3163	for (;;) {
		3164	BDB::flush;
		3165	IO::AIO::flush;
		3166	Coro::cede;
		3167	last unless IO::AIO::nreqs || BDB::nreqs;
		3168	warn "iterate...";
		3169	}
		3170
		3171	++$RELOAD;
		3172
1288	# cancel all extension coros	3173	warn "cancelling all extension coros";
1289	$_->cancel for values %EXT_CORO;	3174	$_->cancel for values %EXT_CORO;
1290	%EXT_CORO = ();	3175	%EXT_CORO = ();
1291		3176
1292	# unload all extensions	3177	warn "removing commands";
1293	for (@exts) {	3178	%COMMAND = ();
		3179
		3180	warn "removing ext/exti commands";
		3181	%EXTCMD = ();
		3182	%EXTICMD = ();
		3183
		3184	warn "unloading/nuking all extensions";
		3185	for my $pkg (@EXTS) {
1294	warn "unloading <$_>";	3186	warn "... unloading $pkg";
1295	unload_extension $_;	3187
		3188	if (my $cb = $pkg->can ("unload")) {
		3189	eval {
		3190	$cb->($pkg);
		3191	1
		3192	} or warn "$pkg unloaded, but with errors: $@";
1296	}	3193	}
1297		3194
		3195	warn "... nuking $pkg";
		3196	Symbol::delete_package $pkg;
		3197	}
		3198
1298	# unload all modules loaded from $LIBDIR	3199	warn "unloading all perl modules loaded from $LIBDIR";
1299	while (my ($k, $v) = each %INC) {	3200	while (my ($k, $v) = each %INC) {
1300	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3201	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1301		3202
1302	warn "removing <$k>";	3203	warn "... unloading $k";
1303	delete $INC{$k};	3204	delete $INC{$k};
1304		3205
1305	$k =~ s/\.pm$//;	3206	$k =~ s/\.pm$//;
1306	$k =~ s/\//::/g;	3207	$k =~ s/\//::/g;
1307		3208
…		…
1310	}	3211	}
1311		3212
1312	Symbol::delete_package $k;	3213	Symbol::delete_package $k;
1313	}	3214	}
1314		3215
1315	# sync database to disk
1316	cf::db_sync;
1317	IO::AIO::flush;
1318
1319	# get rid of safe::, as good as possible	3216	warn "getting rid of safe::, as good as possible";
1320	Symbol::delete_package "safe::$_"	3217	Symbol::delete_package "safe::$_"
1321	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3218	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1322		3219
1323	# remove register_script_function callbacks
1324	# TODO
1325
1326	# unload cf.pm "a bit"	3220	warn "unloading cf.pm \"a bit\"";
1327	delete $INC{"cf.pm"};	3221	delete $INC{"cf.pm"};
		3222	delete $INC{"cf/pod.pm"};
1328		3223
1329	# don't, removes xs symbols, too,	3224	# don't, removes xs symbols, too,
1330	# and global variables created in xs	3225	# and global variables created in xs
1331	#Symbol::delete_package __PACKAGE__;	3226	#Symbol::delete_package __PACKAGE__;
1332		3227
1333	# reload cf.pm	3228	warn "unload completed, starting to reload now";
		3229
1334	warn "reloading cf.pm";	3230	warn "reloading cf.pm";
1335	require cf;	3231	require cf;
1336	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3232	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1337		3233
1338	# load config and database again	3234	warn "loading config and database again";
1339	cf::cfg_load;	3235	cf::cfg_load;
1340	cf::db_load;
1341		3236
1342	# load extensions
1343	warn "load extensions";	3237	warn "loading extensions";
1344	cf::load_extensions;	3238	cf::load_extensions;
1345		3239
1346	# reattach attachments to objects	3240	warn "reattaching attachments to objects/players";
1347	warn "reattach";	3241	_global_reattach; # objects, sockets
1348	_global_reattach;	3242	warn "reattaching attachments to maps";
		3243	reattach $_ for values %MAP;
		3244	warn "reattaching attachments to players";
		3245	reattach $_ for values %PLAYER;
		3246
		3247	warn "leaving sync_job";
		3248
		3249	1
		3250	} or do {
		3251	warn $@;
		3252	warn "error while reloading, exiting.";
		3253	exit 1;
1349	};	3254	};
1350	warn $@ if $@;
1351		3255
1352	warn "reloaded";	3256	warn "reloaded";
1353	};	3257	};
1354		3258
1355	sub perl_reload() {	3259	our $RELOAD_WATCHER; # used only during reload
1356	_perl_reload;
1357	}
1358		3260
1359	register "<global>", __PACKAGE__;	3261	sub reload_perl() {
		3262	# doing reload synchronously and two reloads happen back-to-back,
		3263	# coro crashes during coro_state_free->destroy here.
1360		3264
		3265	$RELOAD_WATCHER ||= Event->timer (
		3266	reentrant => 0,
		3267	after => 0,
		3268	data => WF_AUTOCANCEL,
		3269	cb => sub {
		3270	do_reload_perl;
		3271	undef $RELOAD_WATCHER;
		3272	},
		3273	);
		3274	}
		3275
1361	register_command "perl-reload" => sub {	3276	register_command "reload" => sub {
1362	my ($who, $arg) = @_;	3277	my ($who, $arg) = @_;
1363		3278
1364	if ($who->flag (FLAG_WIZ)) {	3279	if ($who->flag (FLAG_WIZ)) {
1365	$who->message ("reloading...");	3280	$who->message ("reloading server.");
1366	_perl_reload;	3281	async { reload_perl };
1367	}	3282	}
1368	};	3283	};
1369		3284
1370	unshift @INC, $LIBDIR;	3285	unshift @INC, $LIBDIR;
1371		3286
		3287	my $bug_warning = 0;
		3288
		3289	our @WAIT_FOR_TICK;
		3290	our @WAIT_FOR_TICK_BEGIN;
		3291
		3292	sub wait_for_tick {
		3293	return unless $TICK_WATCHER->is_active;
		3294	return if $Coro::current == $Coro::main;
		3295
		3296	my $signal = new Coro::Signal;
		3297	push @WAIT_FOR_TICK, $signal;
		3298	$signal->wait;
		3299	}
		3300
		3301	sub wait_for_tick_begin {
		3302	return unless $TICK_WATCHER->is_active;
		3303	return if $Coro::current == $Coro::main;
		3304
		3305	my $signal = new Coro::Signal;
		3306	push @WAIT_FOR_TICK_BEGIN, $signal;
		3307	$signal->wait;
		3308	}
		3309
		3310	my $min = 1e6;#d#
		3311	my $avg = 10;
1372	$TICK_WATCHER = Event->timer (	3312	$TICK_WATCHER = Event->timer (
1373	reentrant => 0,	3313	reentrant => 0,
		3314	parked => 1,
1374	prio => 0,	3315	prio => 0,
1375	at => $NEXT_TICK || $TICK,	3316	at => $NEXT_TICK || $TICK,
1376	data => WF_AUTOCANCEL,	3317	data => WF_AUTOCANCEL,
1377	cb => sub {	3318	cb => sub {
1378	unless ($FREEZE) {	3319	if ($Coro::current != $Coro::main) {
		3320	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3321	unless ++$bug_warning > 10;
		3322	return;
		3323	}
		3324
		3325	$NOW = $tick_start = Event::time;
		3326
1379	cf::server_tick; # one server iteration	3327	cf::server_tick; # one server iteration
1380	$RUNTIME += $TICK;	3328
		3329	0 && sync_job {#d#
		3330	for(1..10) {
		3331	my $t = Event::time;
		3332	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3333	or die;
		3334
		3335	$map->width (50);
		3336	$map->height (50);
		3337	$map->alloc;
		3338	$map->_load_objects ("/tmp/x.map", 1);
		3339	my $t = Event::time - $t;
		3340
		3341	#next unless $t < 0.0013;#d#
		3342	if ($t < $min) {
		3343	$min = $t;
		3344	}
		3345	$avg = $avg * 0.99 + $t * 0.01;
		3346	}
		3347	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3348	exit 0;
		3349	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
1381	}	3350	};
1382		3351
		3352	$RUNTIME += $TICK;
1383	$NEXT_TICK += $TICK;	3353	$NEXT_TICK += $TICK;
1384		3354
		3355	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3356	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3357	Coro::async_pool {
		3358	write_runtime
		3359	or warn "ERROR: unable to write runtime file: $!";
		3360	};
		3361	}
		3362
		3363	# my $AFTER = Event::time;
		3364	# warn $AFTER - $NOW;#d#
		3365
		3366	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3367	$sig->send;
		3368	}
		3369	while (my $sig = shift @WAIT_FOR_TICK) {
		3370	$sig->send;
		3371	}
		3372
		3373	$NOW = Event::time;
		3374
1385	# if we are delayed by four ticks or more, skip them all	3375	# if we are delayed by four ticks or more, skip them all
1386	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3376	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1387		3377
1388	$TICK_WATCHER->at ($NEXT_TICK);	3378	$TICK_WATCHER->at ($NEXT_TICK);
1389	$TICK_WATCHER->start;	3379	$TICK_WATCHER->start;
		3380
		3381	$LOAD = ($NOW - $tick_start) / $TICK;
		3382	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3383
		3384	_post_tick;
		3385
		3386
1390	},	3387	},
1391	);	3388	);
1392		3389
		3390	{
		3391	BDB::max_poll_time $TICK * 0.1;
		3392	$BDB_POLL_WATCHER = Event->io (
		3393	reentrant => 0,
		3394	fd => BDB::poll_fileno,
		3395	poll => 'r',
		3396	prio => 0,
		3397	data => WF_AUTOCANCEL,
		3398	cb => \&BDB::poll_cb,
		3399	);
		3400	BDB::min_parallel 8;
		3401
		3402	BDB::set_sync_prepare {
		3403	my $status;
		3404	my $current = $Coro::current;
		3405	(
		3406	sub {
		3407	$status = $!;
		3408	$current->ready; undef $current;
		3409	},
		3410	sub {
		3411	Coro::schedule while defined $current;
		3412	$! = $status;
		3413	},
		3414	)
		3415	};
		3416
		3417	unless ($DB_ENV) {
		3418	$DB_ENV = BDB::db_env_create;
		3419
		3420	cf::sync_job {
		3421	eval {
		3422	BDB::db_env_open
		3423	$DB_ENV,
		3424	$BDBDIR,
		3425	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3426	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3427	0666;
		3428
		3429	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3430
		3431	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3432	$DB_ENV->set_lk_detect;
		3433	};
		3434
		3435	cf::cleanup "db_env_open(db): $@" if $@;
		3436	};
		3437	}
		3438	}
		3439
		3440	{
		3441	IO::AIO::min_parallel 8;
		3442
		3443	undef $Coro::AIO::WATCHER;
1393	IO::AIO::max_poll_time $TICK * 0.2;	3444	IO::AIO::max_poll_time $TICK * 0.1;
1394		3445	$AIO_POLL_WATCHER = Event->io (
1395	Event->io (fd => IO::AIO::poll_fileno,	3446	reentrant => 0,
1396	poll => 'r',
1397	prio => 5,
1398	data => WF_AUTOCANCEL,	3447	data => WF_AUTOCANCEL,
		3448	fd => IO::AIO::poll_fileno,
		3449	poll => 'r',
		3450	prio => 6,
1399	cb => \&IO::AIO::poll_cb);	3451	cb => \&IO::AIO::poll_cb,
		3452	);
		3453	}
1400		3454
1401	# we must not ever block the main coroutine	3455	my $_log_backtrace;
1402	$Coro::idle = sub {	3456
1403	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3457	sub _log_backtrace {
1404	warn "FATAL: Coro::idle was called, major BUG\n";	3458	my ($msg, @addr) = @_;
1405	(Coro::unblock_sub {	3459
1406	Event::one_event;	3460	$msg =~ s/\n//;
1407	})->();	3461
1408	};	3462	# limit the # of concurrent backtraces
		3463	if ($_log_backtrace < 2) {
		3464	++$_log_backtrace;
		3465	async {
		3466	my @bt = fork_call {
		3467	@addr = map { sprintf "%x", $_ } @addr;
		3468	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3469	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3470	or die "addr2line: $!";
		3471
		3472	my @funcs;
		3473	my @res = <$fh>;
		3474	chomp for @res;
		3475	while (@res) {
		3476	my ($func, $line) = splice @res, 0, 2, ();
		3477	push @funcs, "[$func] $line";
		3478	}
		3479
		3480	@funcs
		3481	};
		3482
		3483	LOG llevInfo, "[ABT] $msg\n";
		3484	LOG llevInfo, "[ABT] $_\n" for @bt;
		3485	--$_log_backtrace;
		3486	};
		3487	} else {
		3488	LOG llevInfo, "[ABT] $msg\n";
		3489	LOG llevInfo, "[ABT] [suppressed]\n";
		3490	}
		3491	}
		3492
		3493	# load additional modules
		3494	use cf::pod;
		3495
		3496	END { cf::emergency_save }
1409		3497
1410	1	3498	1
1411		3499

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