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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 1.336 by root, Tue Aug 21 00:31:18 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 1.4 ();
		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
716	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1154	if (my $cb = $EXTCMD{$type}) {
717	if (my %reply = $cb->[0]->($pl, $msg)) {	1155	my @reply = $cb->($pl, @payload);
		1156
718	$pl->ext_reply ($msg->{msgid}, %reply);	1157	$pl->ext_reply ($reply, @reply)
719	}	1158	if $reply;
720	}	1159	}
721	} else {	1160	} else {
722	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1161	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
723	}	1162	}
724		1163
725	cf::override;	1164	cf::override;
726	},	1165	},
727	);	1166	);
728		1167
		1168	sub load_extensions {
		1169	cf::sync_job {
		1170	my %todo;
		1171
		1172	for my $path (<$LIBDIR/*.ext>) {
		1173	next unless -r $path;
		1174
		1175	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1176	my $base = $1;
		1177	my $pkg = $1;
		1178	$pkg =~ s/[^[:word:]]/_/g;
		1179	$pkg = "ext::$pkg";
		1180
		1181	open my $fh, "<:utf8", $path
		1182	or die "$path: $!";
		1183
		1184	my $source = do { local $/; <$fh> };
		1185
		1186	my %ext = (
		1187	path => $path,
		1188	base => $base,
		1189	pkg => $pkg,
		1190	);
		1191
		1192	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1193	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1194
		1195	$ext{source} =
		1196	"package $pkg; use strict; use utf8;\n"
		1197	. "#line 1 \"$path\"\n{\n"
		1198	. $source
		1199	. "\n};\n1";
		1200
		1201	$todo{$base} = \%ext;
		1202	}
		1203
		1204	my %done;
		1205	while (%todo) {
		1206	my $progress;
		1207
		1208	while (my ($k, $v) = each %todo) {
		1209	for (split /,\s*/, $v->{meta}{depends}) {
		1210	goto skip
		1211	unless exists $done{$_};
		1212	}
		1213
		1214	warn "... loading '$k' into '$v->{pkg}'\n";
		1215
		1216	unless (eval $v->{source}) {
		1217	my $msg = $@ ? "$v->{path}: $@\n"
		1218	: "$v->{base}: extension inactive.\n";
		1219
		1220	if (exists $v->{meta}{mandatory}) {
		1221	warn $msg;
		1222	warn "mandatory extension failed to load, exiting.\n";
		1223	exit 1;
		1224	}
		1225
		1226	warn $msg;
		1227	}
		1228
		1229	$done{$k} = delete $todo{$k};
		1230	push @EXTS, $v->{pkg};
		1231	$progress = 1;
		1232	}
		1233
		1234	skip:
		1235	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1236	unless $progress;
		1237	}
		1238	};
		1239	}
		1240
		1241	#############################################################################
		1242
		1243	=back
		1244
		1245	=head2 CORE EXTENSIONS
		1246
		1247	Functions and methods that extend core crossfire objects.
		1248
		1249	=cut
		1250
		1251	package cf::player;
		1252
		1253	use Coro::AIO;
		1254
		1255	=head3 cf::player
		1256
		1257	=over 4
		1258
		1259	=item cf::player::find $login
		1260
		1261	Returns the given player object, loading it if necessary (might block).
		1262
		1263	=cut
		1264
		1265	sub playerdir($) {
		1266	"$PLAYERDIR/"
		1267	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1268	}
		1269
		1270	sub path($) {
		1271	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1272
		1273	(playerdir $login) . "/playerdata"
		1274	}
		1275
		1276	sub find_active($) {
		1277	$cf::PLAYER{$_[0]}
		1278	and $cf::PLAYER{$_[0]}->active
		1279	and $cf::PLAYER{$_[0]}
		1280	}
		1281
		1282	sub exists($) {
		1283	my ($login) = @_;
		1284
		1285	$cf::PLAYER{$login}
		1286	or cf::sync_job { !aio_stat path $login }
		1287	}
		1288
		1289	sub find($) {
		1290	return $cf::PLAYER{$_[0]} || do {
		1291	my $login = $_[0];
		1292
		1293	my $guard = cf::lock_acquire "user_find:$login";
		1294
		1295	$cf::PLAYER{$_[0]} || do {
		1296	# rename old playerfiles to new ones
		1297	#TODO: remove when no longer required
		1298	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1299	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1300	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1301	aio_unlink +(playerdir $login) . "/$login.pl";
		1302
		1303	my $pl = load_pl path $login
		1304	or return;
		1305	$cf::PLAYER{$login} = $pl
		1306	}
		1307	}
		1308	}
		1309
		1310	sub save($) {
		1311	my ($pl) = @_;
		1312
		1313	return if $pl->{deny_save};
		1314
		1315	my $path = path $pl;
		1316	my $guard = cf::lock_acquire "user_save:$path";
		1317
		1318	return if $pl->{deny_save};
		1319
		1320	aio_mkdir playerdir $pl, 0770;
		1321	$pl->{last_save} = $cf::RUNTIME;
		1322
		1323	$pl->save_pl ($path);
		1324	Coro::cede;
		1325	}
		1326
		1327	sub new($) {
		1328	my ($login) = @_;
		1329
		1330	my $self = create;
		1331
		1332	$self->ob->name ($login);
		1333	$self->{deny_save} = 1;
		1334
		1335	$cf::PLAYER{$login} = $self;
		1336
		1337	$self
		1338	}
		1339
		1340	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1341
		1342	=cut
		1343
		1344	sub send_msg {
		1345	my $ns = shift->ns
		1346	or return;
		1347	$ns->send_msg (@_);
		1348	}
		1349
		1350	=item $pl->quit_character
		1351
		1352	Nukes the player without looking back. If logged in, the connection will
		1353	be destroyed. May block for a long time.
		1354
		1355	=cut
		1356
		1357	sub quit_character {
		1358	my ($pl) = @_;
		1359
		1360	my $name = $pl->ob->name;
		1361
		1362	$pl->{deny_save} = 1;
		1363	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1364
		1365	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1366	$pl->deactivate;
		1367	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1368	$pl->ns->destroy if $pl->ns;
		1369
		1370	my $path = playerdir $pl;
		1371	my $temp = "$path~$cf::RUNTIME~deleting~";
		1372	aio_rename $path, $temp;
		1373	delete $cf::PLAYER{$pl->ob->name};
		1374	$pl->destroy;
		1375
		1376	my $prefix = qr<^~\Q$name\E/>;
		1377
		1378	# nuke player maps
		1379	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1380
		1381	IO::AIO::aio_rmtree $temp;
		1382	}
		1383
		1384	=item $pl->kick
		1385
		1386	Kicks a player out of the game. This destroys the connection.
		1387
		1388	=cut
		1389
		1390	sub kick {
		1391	my ($pl, $kicker) = @_;
		1392
		1393	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1394	$pl->killer ("kicked");
		1395	$pl->ns->destroy;
		1396	}
		1397
		1398	=item cf::player::list_logins
		1399
		1400	Returns am arrayref of all valid playernames in the system, can take a
		1401	while and may block, so not sync_job-capable, ever.
		1402
		1403	=cut
		1404
		1405	sub list_logins {
		1406	my $dirs = aio_readdir $PLAYERDIR
		1407	or return [];
		1408
		1409	my @logins;
		1410
		1411	for my $login (@$dirs) {
		1412	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1413	aio_read $fh, 0, 512, my $buf, 0 or next;
		1414	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1415
		1416	utf8::decode $login;
		1417	push @logins, $login;
		1418	}
		1419
		1420	\@logins
		1421	}
		1422
		1423	=item $player->maps
		1424
		1425	Returns an arrayref of map paths that are private for this
		1426	player. May block.
		1427
		1428	=cut
		1429
		1430	sub maps($) {
		1431	my ($pl) = @_;
		1432
		1433	$pl = ref $pl ? $pl->ob->name : $pl;
		1434
		1435	my $files = aio_readdir playerdir $pl
		1436	or return;
		1437
		1438	my @paths;
		1439
		1440	for (@$files) {
		1441	utf8::decode $_;
		1442	next if /\.(?:pl|pst)$/;
		1443	next unless /^$PATH_SEP/o;
		1444
		1445	push @paths, cf::map::normalise "~$pl/$_";
		1446	}
		1447
		1448	\@paths
		1449	}
		1450
		1451	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1452
		1453	Expand crossfire pod fragments into protocol xml.
		1454
		1455	=cut
		1456
		1457	sub expand_cfpod {
		1458	((my $self), (local $_)) = @_;
		1459
		1460	# escape & and <
		1461	s/&/&amp;/g;
		1462	s/(?<![BIUGH])</&lt;/g;
		1463
		1464	# this is buggy, it needs to properly take care of nested <'s
		1465
		1466	1 while
		1467	# replace B<>, I<>, U<> etc.
		1468	s/B<([^\>]*)>/<b>$1<\/b>/
		1469	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1470	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1471	# replace G<male|female> tags
		1472	|| s{G<([^>|]*)\|([^>]*)>}{
		1473	$self->gender ? $2 : $1
		1474	}ge
		1475	# replace H<hint text>
		1476	|| s{H<([^\>]*)>}
		1477	{
		1478	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1479	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1480	"")
		1481	[$self->{hintmode}]
		1482	}ge;
		1483
		1484	# create single paragraphs (very hackish)
		1485	s/(?<=\S)\n(?=\w)/ /g;
		1486
		1487	# compress some whitespace
		1488	s/\s+\n/\n/g; # ws line-ends
		1489	s/\n\n+/\n/g; # double lines
		1490	s/^\n+//; # beginning lines
		1491	s/\n+$//; # ending lines
		1492
		1493	$_
		1494	}
		1495
		1496	sub hintmode {
		1497	$_[0]{hintmode} = $_[1] if @_ > 1;
		1498	$_[0]{hintmode}
		1499	}
		1500
		1501	=item $player->ext_reply ($msgid, @msg)
		1502
		1503	Sends an ext reply to the player.
		1504
		1505	=cut
		1506
		1507	sub ext_reply($$@) {
		1508	my ($self, $id, @msg) = @_;
		1509
		1510	$self->ns->ext_reply ($id, @msg)
		1511	}
		1512
		1513	=item $player->ext_msg ($type, @msg)
		1514
		1515	Sends an ext event to the client.
		1516
		1517	=cut
		1518
		1519	sub ext_msg($$@) {
		1520	my ($self, $type, @msg) = @_;
		1521
		1522	$self->ns->ext_msg ($type, @msg);
		1523	}
		1524
		1525	=head3 cf::region
		1526
		1527	=over 4
		1528
		1529	=cut
		1530
		1531	package cf::region;
		1532
		1533	=item cf::region::find_by_path $path
		1534
		1535	Tries to decuce the likely region for a map knowing only its path.
		1536
		1537	=cut
		1538
		1539	sub find_by_path($) {
		1540	my ($path) = @_;
		1541
		1542	my ($match, $specificity);
		1543
		1544	for my $region (list) {
		1545	if ($region->{match} && $path =~ $region->{match}) {
		1546	($match, $specificity) = ($region, $region->specificity)
		1547	if $region->specificity > $specificity;
		1548	}
		1549	}
		1550
		1551	$match
		1552	}
		1553
		1554	=back
		1555
		1556	=head3 cf::map
		1557
		1558	=over 4
		1559
		1560	=cut
		1561
		1562	package cf::map;
		1563
		1564	use Fcntl;
		1565	use Coro::AIO;
		1566
		1567	use overload
		1568	'""' => \&as_string,
		1569	fallback => 1;
		1570
		1571	our $MAX_RESET = 3600;
		1572	our $DEFAULT_RESET = 3000;
		1573
		1574	sub generate_random_map {
		1575	my ($self, $rmp) = @_;
		1576	# mit "rum" bekleckern, nicht
		1577	$self->_create_random_map (
		1578	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1579	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1580	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1581	$rmp->{exit_on_final_map},
		1582	$rmp->{xsize}, $rmp->{ysize},
		1583	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1584	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1585	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1586	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1587	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1588	(cf::region::find $rmp->{region}), $rmp->{custom}
		1589	)
		1590	}
		1591
		1592	=item cf::map->register ($regex, $prio)
		1593
		1594	Register a handler for the map path matching the given regex at the
		1595	givne priority (higher is better, built-in handlers have priority 0, the
		1596	default).
		1597
		1598	=cut
		1599
729	sub register {	1600	sub register {
		1601	my (undef, $regex, $prio) = @_;
		1602	my $pkg = caller;
		1603
		1604	no strict;
		1605	push @{"$pkg\::ISA"}, __PACKAGE__;
		1606
		1607	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1608	}
		1609
		1610	# also paths starting with '/'
		1611	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1612
		1613	sub thawer_merge {
730	my ($base, $pkg) = @_;	1614	my ($self, $merge) = @_;
731		1615
732	#TODO	1616	# we have to keep some variables in memory intact
733	}	1617	local $self->{path};
		1618	local $self->{load_path};
734		1619
735	sub load_extension {	1620	$self->SUPER::thawer_merge ($merge);
		1621	}
		1622
		1623	sub normalise {
736	my ($path) = @_;	1624	my ($path, $base) = @_;
737		1625
738	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1626	$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		1627
744	warn "loading '$path' into '$pkg'\n";	1628	$path =~ s/\.map$//;
745		1629
746	open my $fh, "<:utf8", $path	1630	# map plan:
747	or die "$path: $!";	1631	#
		1632	# /! non-realised random map exit (special hack!)
		1633	# {... are special paths that are not being touched
		1634	# ?xxx/... are special absolute paths
		1635	# ?random/... random maps
		1636	# /... normal maps
		1637	# ~user/... per-player map of a specific user
748		1638
749	my $source =	1639	$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		1640
755	eval $source	1641	# treat it as relative path if it starts with
756	or die $@ ? "$path: $@\n"	1642	# something that looks reasonable
757	: "extension disabled.\n";	1643	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1644	$base or Carp::carp "normalise called with relative path and no base: '$path'";
758		1645
759	push @exts, $pkg;	1646	$base =~ s{[^/]+/?$}{};
760	$ext_pkg{$base} = $pkg;	1647	$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	# }	1648	}
778		1649
779	# remove commands	1650	for ($path) {
780	for my $name (keys %COMMAND) {	1651	redo if s{//}{/};
781	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1652	redo if s{/\.?/}{/};
		1653	redo if s{/[^/]+/\.\./}{/};
		1654	}
782		1655
783	if (@cb) {	1656	$path
784	$COMMAND{$name} = \@cb;	1657	}
		1658
		1659	sub new_from_path {
		1660	my (undef, $path, $base) = @_;
		1661
		1662	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1663
		1664	$path = normalise $path, $base;
		1665
		1666	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1667	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1668	my $self = bless cf::map::new, $pkg;
		1669	$self->{path} = $path; $self->path ($path);
		1670	$self->init; # pass $1 etc.
		1671	return $self;
		1672	}
		1673	}
		1674
		1675	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1676	()
		1677	}
		1678
		1679	sub init {
		1680	my ($self) = @_;
		1681
		1682	$self
		1683	}
		1684
		1685	sub as_string {
		1686	my ($self) = @_;
		1687
		1688	"$self->{path}"
		1689	}
		1690
		1691	# the displayed name, this is a one way mapping
		1692	sub visible_name {
		1693	&as_string
		1694	}
		1695
		1696	# the original (read-only) location
		1697	sub load_path {
		1698	my ($self) = @_;
		1699
		1700	"$MAPDIR/$self->{path}.map"
		1701	}
		1702
		1703	# the temporary/swap location
		1704	sub save_path {
		1705	my ($self) = @_;
		1706
		1707	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1708	"$TMPDIR/$path.map"
		1709	}
		1710
		1711	# the unique path, undef == no special unique path
		1712	sub uniq_path {
		1713	my ($self) = @_;
		1714
		1715	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1716	"$UNIQUEDIR/$path"
		1717	}
		1718
		1719	# and all this just because we cannot iterate over
		1720	# all maps in C++...
		1721	sub change_all_map_light {
		1722	my ($change) = @_;
		1723
		1724	$_->change_map_light ($change)
		1725	for grep $_->outdoor, values %cf::MAP;
		1726	}
		1727
		1728	sub decay_objects {
		1729	my ($self) = @_;
		1730
		1731	return if $self->{deny_reset};
		1732
		1733	$self->do_decay_objects;
		1734	}
		1735
		1736	sub unlink_save {
		1737	my ($self) = @_;
		1738
		1739	utf8::encode (my $save = $self->save_path);
		1740	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1741	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1742	}
		1743
		1744	sub load_header_from($) {
		1745	my ($self, $path) = @_;
		1746
		1747	utf8::encode $path;
		1748	#aio_open $path, O_RDONLY, 0
		1749	# or return;
		1750
		1751	$self->_load_header ($path)
		1752	or return;
		1753
		1754	$self->{load_path} = $path;
		1755
		1756	1
		1757	}
		1758
		1759	sub load_header_orig {
		1760	my ($self) = @_;
		1761
		1762	$self->load_header_from ($self->load_path)
		1763	}
		1764
		1765	sub load_header_temp {
		1766	my ($self) = @_;
		1767
		1768	$self->load_header_from ($self->save_path)
		1769	}
		1770
		1771	sub prepare_temp {
		1772	my ($self) = @_;
		1773
		1774	$self->last_access ((delete $self->{last_access})
		1775	|| $cf::RUNTIME); #d#
		1776	# safety
		1777	$self->{instantiate_time} = $cf::RUNTIME
		1778	if $self->{instantiate_time} > $cf::RUNTIME;
		1779	}
		1780
		1781	sub prepare_orig {
		1782	my ($self) = @_;
		1783
		1784	$self->{load_original} = 1;
		1785	$self->{instantiate_time} = $cf::RUNTIME;
		1786	$self->last_access ($cf::RUNTIME);
		1787	$self->instantiate;
		1788	}
		1789
		1790	sub load_header {
		1791	my ($self) = @_;
		1792
		1793	if ($self->load_header_temp) {
		1794	$self->prepare_temp;
785	} else {	1795	} else {
786	delete $COMMAND{$name};	1796	$self->load_header_orig
787	}	1797	or return;
		1798	$self->prepare_orig;
		1799	}
		1800
		1801	$self->{deny_reset} = 1
		1802	if $self->no_reset;
		1803
		1804	$self->default_region (cf::region::find_by_path $self->{path})
		1805	unless $self->default_region;
		1806
788	}	1807	1
		1808	}
789		1809
790	# remove extcmds	1810	sub find;
791	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1811	sub find {
792	delete $EXTCMD{$name};	1812	my ($path, $origin) = @_;
		1813
		1814	$path = normalise $path, $origin && $origin->path;
		1815
		1816	cf::lock_wait "map_find:$path";
		1817
		1818	$cf::MAP{$path} || do {
		1819	my $guard = cf::lock_acquire "map_find:$path";
		1820	my $map = new_from_path cf::map $path
		1821	or return;
		1822
		1823	$map->{last_save} = $cf::RUNTIME;
		1824
		1825	$map->load_header
		1826	or return;
		1827
		1828	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1829	# doing this can freeze the server in a sync job, obviously
		1830	#$cf::WAIT_FOR_TICK->wait;
		1831	$map->reset;
		1832	undef $guard;
		1833	return find $path;
		1834	}
		1835
		1836	$cf::MAP{$path} = $map
		1837	}
		1838	}
		1839
		1840	sub pre_load { }
		1841	sub post_load { }
		1842
		1843	sub load {
		1844	my ($self) = @_;
		1845
		1846	local $self->{deny_reset} = 1; # loading can take a long time
		1847
		1848	my $path = $self->{path};
		1849
793	}	1850	{
		1851	my $guard = cf::lock_acquire "map_load:$path";
794		1852
795	if (my $cb = $pkg->can ("unload")) {	1853	return if $self->in_memory != cf::MAP_SWAPPED;
796	eval {	1854
797	$cb->($pkg);	1855	$self->in_memory (cf::MAP_LOADING);
		1856
		1857	$self->alloc;
		1858
		1859	$self->pre_load;
		1860	Coro::cede;
		1861
		1862	$self->_load_objects ($self->{load_path}, 1)
		1863	or return;
		1864
		1865	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1866	if delete $self->{load_original};
		1867
		1868	if (my $uniq = $self->uniq_path) {
		1869	utf8::encode $uniq;
		1870	if (aio_open $uniq, O_RDONLY, 0) {
		1871	$self->clear_unique_items;
		1872	$self->_load_objects ($uniq, 0);
798	1	1873	}
799	} or warn "$pkg unloaded, but with errors: $@";	1874	}
800	}
801		1875
802	Symbol::delete_package $pkg;	1876	Coro::cede;
803	}	1877	# now do the right thing for maps
		1878	$self->link_multipart_objects;
		1879	$self->difficulty ($self->estimate_difficulty)
		1880	unless $self->difficulty;
		1881	Coro::cede;
804		1882
805	sub load_extensions {	1883	unless ($self->{deny_activate}) {
806	for my $ext (<$LIBDIR/*.ext>) {	1884	$self->decay_objects;
807	next unless -r $ext;	1885	$self->fix_auto_apply;
808	eval {	1886	$self->update_buttons;
809	load_extension $ext;	1887	Coro::cede;
810	1	1888	$self->set_darkness_map;
811	} or warn "$ext not loaded: $@";	1889	Coro::cede;
812	}	1890	$self->activate;
813	}	1891	}
814		1892
815	#############################################################################	1893	$self->{last_save} = $cf::RUNTIME;
816	# load/save/clean perl data associated with a map	1894	$self->last_access ($cf::RUNTIME);
817		1895
818	*cf::mapsupport::on_clean = sub {	1896	$self->in_memory (cf::MAP_IN_MEMORY);
		1897	}
		1898
		1899	$self->post_load;
		1900	}
		1901
		1902	sub customise_for {
		1903	my ($self, $ob) = @_;
		1904
		1905	return find "~" . $ob->name . "/" . $self->{path}
		1906	if $self->per_player;
		1907
		1908	# return find "?party/" . $ob->name . "/" . $self->{path}
		1909	# if $self->per_party;
		1910
		1911	$self
		1912	}
		1913
		1914	# find and load all maps in the 3x3 area around a map
		1915	sub load_neighbours {
819	my ($map) = @_;	1916	my ($map) = @_;
820		1917
821	my $path = $map->tmpname;	1918	my @neigh; # diagonal neighbours
822	defined $path or return;
823		1919
824	unlink "$path.pst";	1920	for (0 .. 3) {
825	};	1921	my $neigh = $map->tile_path ($_)
		1922	or next;
		1923	$neigh = find $neigh, $map
		1924	or next;
		1925	$neigh->load;
826		1926
827	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1927	push @neigh,
		1928	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		1929	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1930	}
828		1931
829	#############################################################################	1932	for (grep defined $_->[0], @neigh) {
830	# load/save perl data associated with player->ob objects	1933	my ($path, $origin) = @$_;
831		1934	my $neigh = find $path, $origin
832	sub all_objects(@) {	1935	or next;
833	@_, map all_objects ($_->inv), @_	1936	$neigh->load;
		1937	}
834	}	1938	}
835		1939
836	# TODO: compatibility cruft, remove when no longer needed	1940	sub find_sync {
837	cf::player->attach (	1941	my ($path, $origin) = @_;
838	on_load => sub {
839	my ($pl, $path) = @_;
840		1942
841	for my $o (all_objects $pl->ob) {	1943	cf::sync_job { find $path, $origin }
842	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1944	}
843	$o->set_ob_key_value ("_perl_data");
844		1945
845	%$o = %{ Storable::thaw pack "H*", $value };	1946	sub do_load_sync {
		1947	my ($map) = @_;
		1948
		1949	cf::sync_job { $map->load };
		1950	}
		1951
		1952	our %MAP_PREFETCH;
		1953	our $MAP_PREFETCHER = undef;
		1954
		1955	sub find_async {
		1956	my ($path, $origin) = @_;
		1957
		1958	$path = normalise $path, $origin && $origin->{path};
		1959
		1960	if (my $map = $cf::MAP{$path}) {
		1961	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1962	}
		1963
		1964	undef $MAP_PREFETCH{$path};
		1965	$MAP_PREFETCHER ||= cf::async {
		1966	while (%MAP_PREFETCH) {
		1967	for my $path (keys %MAP_PREFETCH) {
		1968	if (my $map = find $path) {
		1969	$map->load;
		1970	}
		1971
		1972	delete $MAP_PREFETCH{$path};
846	}	1973	}
847	}	1974	}
		1975	undef $MAP_PREFETCHER;
		1976	};
		1977	$MAP_PREFETCHER->prio (6);
		1978
		1979	()
		1980	}
		1981
		1982	sub save {
		1983	my ($self) = @_;
		1984
		1985	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1986
		1987	$self->{last_save} = $cf::RUNTIME;
		1988
		1989	return unless $self->dirty;
		1990
		1991	my $save = $self->save_path; utf8::encode $save;
		1992	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1993
		1994	$self->{load_path} = $save;
		1995
		1996	return if $self->{deny_save};
		1997
		1998	local $self->{last_access} = $self->last_access;#d#
		1999
		2000	cf::async {
		2001	$_->contr->save for $self->players;
		2002	};
		2003
		2004	if ($uniq) {
		2005	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2006	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2007	} else {
		2008	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
848	},	2009	}
849	);	2010	}
850		2011
851	#############################################################################	2012	sub swap_out {
		2013	my ($self) = @_;
852		2014
853	=head2 CORE EXTENSIONS	2015	# save first because save cedes
		2016	$self->save;
854		2017
855	Functions and methods that extend core crossfire objects.	2018	my $lock = cf::lock_acquire "map_data:" . $self->path;
856		2019
857	=head3 cf::player	2020	return if $self->players;
		2021	return if $self->in_memory != cf::MAP_IN_MEMORY;
		2022	return if $self->{deny_save};
		2023
		2024	$self->clear;
		2025	$self->in_memory (cf::MAP_SWAPPED);
		2026	}
		2027
		2028	sub reset_at {
		2029	my ($self) = @_;
		2030
		2031	# TODO: safety, remove and allow resettable per-player maps
		2032	return 1e99 if $self->{deny_reset};
		2033
		2034	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2035	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2036
		2037	$time + $to
		2038	}
		2039
		2040	sub should_reset {
		2041	my ($self) = @_;
		2042
		2043	$self->reset_at <= $cf::RUNTIME
		2044	}
		2045
		2046	sub reset {
		2047	my ($self) = @_;
		2048
		2049	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2050
		2051	return if $self->players;
		2052
		2053	warn "resetting map ", $self->path;
		2054
		2055	$self->in_memory (cf::MAP_SWAPPED);
		2056
		2057	# need to save uniques path
		2058	unless ($self->{deny_save}) {
		2059	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2060
		2061	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2062	if $uniq;
		2063	}
		2064
		2065	delete $cf::MAP{$self->path};
		2066
		2067	$self->clear;
		2068
		2069	$_->clear_links_to ($self) for values %cf::MAP;
		2070
		2071	$self->unlink_save;
		2072	$self->destroy;
		2073	}
		2074
		2075	my $nuke_counter = "aaaa";
		2076
		2077	sub nuke {
		2078	my ($self) = @_;
		2079
		2080	delete $cf::MAP{$self->path};
		2081
		2082	$self->unlink_save;
		2083
		2084	bless $self, "cf::map";
		2085	delete $self->{deny_reset};
		2086	$self->{deny_save} = 1;
		2087	$self->reset_timeout (1);
		2088	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2089
		2090	$cf::MAP{$self->path} = $self;
		2091
		2092	$self->reset; # polite request, might not happen
		2093	}
		2094
		2095	=item $maps = cf::map::tmp_maps
		2096
		2097	Returns an arrayref with all map paths of currently instantiated and saved
		2098	maps. May block.
		2099
		2100	=cut
		2101
		2102	sub tmp_maps() {
		2103	[
		2104	map {
		2105	utf8::decode $_;
		2106	/\.map$/
		2107	? normalise $_
		2108	: ()
		2109	} @{ aio_readdir $TMPDIR or [] }
		2110	]
		2111	}
		2112
		2113	=item $maps = cf::map::random_maps
		2114
		2115	Returns an arrayref with all map paths of currently instantiated and saved
		2116	random maps. May block.
		2117
		2118	=cut
		2119
		2120	sub random_maps() {
		2121	[
		2122	map {
		2123	utf8::decode $_;
		2124	/\.map$/
		2125	? normalise "?random/$_"
		2126	: ()
		2127	} @{ aio_readdir $RANDOMDIR or [] }
		2128	]
		2129	}
		2130
		2131	=item cf::map::unique_maps
		2132
		2133	Returns an arrayref of paths of all shared maps that have
		2134	instantiated unique items. May block.
		2135
		2136	=cut
		2137
		2138	sub unique_maps() {
		2139	[
		2140	map {
		2141	utf8::decode $_;
		2142	/\.map$/
		2143	? normalise $_
		2144	: ()
		2145	} @{ aio_readdir $UNIQUEDIR or [] }
		2146	]
		2147	}
		2148
		2149	package cf;
		2150
		2151	=back
		2152
		2153	=head3 cf::object
		2154
		2155	=cut
		2156
		2157	package cf::object;
858		2158
859	=over 4	2159	=over 4
860		2160
861	=item cf::player::exists $login	2161	=item $ob->inv_recursive
862		2162
863	Returns true when the given account exists.	2163	Returns the inventory of the object _and_ their inventories, recursively.
864		2164
865	=cut	2165	=cut
866		2166
867	sub cf::player::exists($) {	2167	sub inv_recursive_;
868	cf::player::find $_[0]	2168	sub inv_recursive_ {
869	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2169	map { $_, inv_recursive_ $_->inv } @_
870	}	2170	}
871		2171
872	=item $player->ext_reply ($msgid, $msgtype, %msg)	2172	sub inv_recursive {
873		2173	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	}	2174	}
		2175
		2176	package cf;
885		2177
886	=back	2178	=back
887		2179
888	=head3 cf::object::player	2180	=head3 cf::object::player
889		2181
…		…
905		2197
906	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2198	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
907		2199
908	if ($self->{record_replies}) {	2200	if ($self->{record_replies}) {
909	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2201	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2202
910	} else {	2203	} else {
		2204	my $pl = $self->contr;
		2205
		2206	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2207	my $dialog = $pl->{npc_dialog};
		2208	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2209
		2210	} else {
911	$msg = $npc->name . " says: $msg" if $npc;	2211	$msg = $npc->name . " says: $msg" if $npc;
912	$self->message ($msg, $flags);	2212	$self->message ($msg, $flags);
		2213	}
913	}	2214	}
		2215	}
		2216
		2217	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2218
		2219	=cut
		2220
		2221	sub cf::object::send_msg {
		2222	my $pl = shift->contr
		2223	or return;
		2224	$pl->send_msg (@_);
914	}	2225	}
915		2226
916	=item $player_object->may ("access")	2227	=item $player_object->may ("access")
917		2228
918	Returns wether the given player is authorized to access resource "access"	2229	Returns wether the given player is authorized to access resource "access"
…		…
927	(ref $cf::CFG{"may_$access"}	2238	(ref $cf::CFG{"may_$access"}
928	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2239	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
929	: $cf::CFG{"may_$access"})	2240	: $cf::CFG{"may_$access"})
930	}	2241	}
931		2242
		2243	=item $player_object->enter_link
		2244
		2245	Freezes the player and moves him/her to a special map (C<{link}>).
		2246
		2247	The player should be reasonably safe there for short amounts of time. You
		2248	I<MUST> call C<leave_link> as soon as possible, though.
		2249
		2250	Will never block.
		2251
		2252	=item $player_object->leave_link ($map, $x, $y)
		2253
		2254	Moves the player out of the special C<{link}> map onto the specified
		2255	map. If the map is not valid (or omitted), the player will be moved back
		2256	to the location he/she was before the call to C<enter_link>, or, if that
		2257	fails, to the emergency map position.
		2258
		2259	Might block.
		2260
		2261	=cut
		2262
		2263	sub link_map {
		2264	unless ($LINK_MAP) {
		2265	$LINK_MAP = cf::map::find "{link}"
		2266	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2267	$LINK_MAP->load;
		2268	}
		2269
		2270	$LINK_MAP
		2271	}
		2272
		2273	sub cf::object::player::enter_link {
		2274	my ($self) = @_;
		2275
		2276	$self->deactivate_recursive;
		2277
		2278	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2279
		2280	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2281	if $self->map && $self->map->{path} ne "{link}";
		2282
		2283	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2284	}
		2285
		2286	sub cf::object::player::leave_link {
		2287	my ($self, $map, $x, $y) = @_;
		2288
		2289	return unless $self->contr->active;
		2290
		2291	my $link_pos = delete $self->{_link_pos};
		2292
		2293	unless ($map) {
		2294	# restore original map position
		2295	($map, $x, $y) = @{ $link_pos || [] };
		2296	$map = cf::map::find $map;
		2297
		2298	unless ($map) {
		2299	($map, $x, $y) = @$EMERGENCY_POSITION;
		2300	$map = cf::map::find $map
		2301	or die "FATAL: cannot load emergency map\n";
		2302	}
		2303	}
		2304
		2305	($x, $y) = (-1, -1)
		2306	unless (defined $x) && (defined $y);
		2307
		2308	# use -1 or undef as default coordinates, not 0, 0
		2309	($x, $y) = ($map->enter_x, $map->enter_y)
		2310	if $x <=0 && $y <= 0;
		2311
		2312	$map->load;
		2313	$map->load_neighbours;
		2314
		2315	return unless $self->contr->active;
		2316	$self->activate_recursive;
		2317
		2318	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2319	$self->enter_map ($map, $x, $y);
		2320	}
		2321
		2322	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
		2323
		2324	Moves the player to the given map-path and coordinates by first freezing
		2325	her, loading and preparing them map, calling the provided $check callback
		2326	that has to return the map if sucecssful, and then unfreezes the player on
		2327	the new (success) or old (failed) map position. In either case, $done will
		2328	be called at the end of this process.
		2329
		2330	=cut
		2331
		2332	our $GOTOGEN;
		2333
		2334	sub cf::object::player::goto {
		2335	my ($self, $path, $x, $y, $check, $done) = @_;
		2336
		2337	# do generation counting so two concurrent goto's will be executed in-order
		2338	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2339
		2340	$self->enter_link;
		2341
		2342	(async {
		2343	my $map = eval {
		2344	my $map = cf::map::find $path;
		2345
		2346	if ($map) {
		2347	$map = $map->customise_for ($self);
		2348	$map = $check->($map) if $check && $map;
		2349	} else {
		2350	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2351	}
		2352
		2353	$map
		2354	};
		2355
		2356	if ($@) {
		2357	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2358	LOG llevError | logBacktrace, Carp::longmess $@;
		2359	}
		2360
		2361	if ($gen == $self->{_goto_generation}) {
		2362	delete $self->{_goto_generation};
		2363	$self->leave_link ($map, $x, $y);
		2364	}
		2365
		2366	$done->() if $done;
		2367	})->prio (1);
		2368	}
		2369
		2370	=item $player_object->enter_exit ($exit_object)
		2371
		2372	=cut
		2373
		2374	sub parse_random_map_params {
		2375	my ($spec) = @_;
		2376
		2377	my $rmp = { # defaults
		2378	xsize => (cf::rndm 15, 40),
		2379	ysize => (cf::rndm 15, 40),
		2380	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2381	#layout => string,
		2382	};
		2383
		2384	for (split /\n/, $spec) {
		2385	my ($k, $v) = split /\s+/, $_, 2;
		2386
		2387	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2388	}
		2389
		2390	$rmp
		2391	}
		2392
		2393	sub prepare_random_map {
		2394	my ($exit) = @_;
		2395
		2396	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2397
		2398	# all this does is basically replace the /! path by
		2399	# a new random map path (?random/...) with a seed
		2400	# that depends on the exit object
		2401
		2402	my $rmp = parse_random_map_params $exit->msg;
		2403
		2404	if ($exit->map) {
		2405	$rmp->{region} = $exit->region->name;
		2406	$rmp->{origin_map} = $exit->map->path;
		2407	$rmp->{origin_x} = $exit->x;
		2408	$rmp->{origin_y} = $exit->y;
		2409	}
		2410
		2411	$rmp->{random_seed} ||= $exit->random_seed;
		2412
		2413	my $data = cf::to_json $rmp;
		2414	my $md5 = Digest::MD5::md5_hex $data;
		2415	my $meta = "$RANDOMDIR/$md5.meta";
		2416
		2417	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2418	aio_write $fh, 0, (length $data), $data, 0;
		2419	undef $fh;
		2420	aio_rename "$meta~", $meta;
		2421
		2422	$exit->slaying ("?random/$md5");
		2423	$exit->msg (undef);
		2424	}
		2425	}
		2426
		2427	sub cf::object::player::enter_exit {
		2428	my ($self, $exit) = @_;
		2429
		2430	return unless $self->type == cf::PLAYER;
		2431
		2432	if ($exit->slaying eq "/!") {
		2433	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2434	# the problem is that $exit might not survive long enough
		2435	# so it needs to be done right now, right here
		2436	cf::sync_job { prepare_random_map $exit };
		2437	}
		2438
		2439	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2440	my $hp = $exit->stats->hp;
		2441	my $sp = $exit->stats->sp;
		2442
		2443	$self->enter_link;
		2444
		2445	# if exit is damned, update players death & WoR home-position
		2446	$self->contr->savebed ($slaying, $hp, $sp)
		2447	if $exit->flag (FLAG_DAMNED);
		2448
		2449	(async {
		2450	$self->deactivate_recursive; # just to be sure
		2451	unless (eval {
		2452	$self->goto ($slaying, $hp, $sp);
		2453
		2454	1;
		2455	}) {
		2456	$self->message ("Something went wrong deep within the crossfire server. "
		2457	. "I'll try to bring you back to the map you were before. "
		2458	. "Please report this to the dungeon master!",
		2459	cf::NDI_UNIQUE | cf::NDI_RED);
		2460
		2461	warn "ERROR in enter_exit: $@";
		2462	$self->leave_link;
		2463	}
		2464	})->prio (1);
		2465	}
		2466
932	=head3 cf::client	2467	=head3 cf::client
933		2468
934	=over 4	2469	=over 4
935		2470
936	=item $client->send_drawinfo ($text, $flags)	2471	=item $client->send_drawinfo ($text, $flags)
…		…
942		2477
943	sub cf::client::send_drawinfo {	2478	sub cf::client::send_drawinfo {
944	my ($self, $text, $flags) = @_;	2479	my ($self, $text, $flags) = @_;
945		2480
946	utf8::encode $text;	2481	utf8::encode $text;
947	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2482	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
948	}	2483	}
949		2484
		2485	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2486
		2487	Send a drawinfo or msg packet to the client, formatting the msg for the
		2488	client if neccessary. C<$type> should be a string identifying the type of
		2489	the message, with C<log> being the default. If C<$color> is negative, suppress
		2490	the message unless the client supports the msg packet.
		2491
		2492	=cut
		2493
		2494	sub cf::client::send_msg {
		2495	my ($self, $channel, $msg, $color, @extra) = @_;
		2496
		2497	$msg = $self->pl->expand_cfpod ($msg);
		2498
		2499	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2500
		2501	if (ref $channel) {
		2502	# send meta info to client, if not yet sent
		2503	unless (exists $self->{channel}{$channel->{id}}) {
		2504	$self->{channel}{$channel->{id}} = $channel;
		2505	$self->ext_msg (channel_info => $channel);
		2506	}
		2507
		2508	$channel = $channel->{id};
		2509	}
		2510
		2511	return unless @extra || length $msg;
		2512
		2513	if ($self->can_msg) {
		2514	# default colour, mask it out
		2515	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2516	if $color & cf::NDI_DEF;
		2517
		2518	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2519	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2520	} else {
		2521	if ($color >= 0) {
		2522	# replace some tags by gcfclient-compatible ones
		2523	for ($msg) {
		2524	1 while
		2525	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2526	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2527	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2528	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2529	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2530	}
		2531
		2532	$color &= cf::NDI_COLOR_MASK;
		2533
		2534	utf8::encode $msg;
		2535
		2536	if (0 && $msg =~ /\[/) {
		2537	# COMMAND/INFO
		2538	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2539	} else {
		2540	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2541	$self->send_packet ("drawinfo $color $msg")
		2542	}
		2543	}
		2544	}
		2545	}
		2546
		2547	=item $client->ext_msg ($type, @msg)
		2548
		2549	Sends an ext event to the client.
		2550
		2551	=cut
		2552
		2553	sub cf::client::ext_msg($$@) {
		2554	my ($self, $type, @msg) = @_;
		2555
		2556	my $extcmd = $self->extcmd;
		2557
		2558	if ($extcmd == 2) {
		2559	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2560	} elsif ($extcmd == 1) { # TODO: remove
		2561	push @msg, msgtype => "event_$type";
		2562	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2563	}
		2564	}
		2565
		2566	=item $client->ext_reply ($msgid, @msg)
		2567
		2568	Sends an ext reply to the client.
		2569
		2570	=cut
		2571
		2572	sub cf::client::ext_reply($$@) {
		2573	my ($self, $id, @msg) = @_;
		2574
		2575	if ($self->extcmd == 2) {
		2576	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2577	} elsif ($self->ns->extcmd == 1) {
		2578	#TODO: version 1, remove
		2579	unshift @msg, msgtype => "reply", msgid => $id;
		2580	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2581	}
		2582	}
950		2583
951	=item $success = $client->query ($flags, "text", \&cb)	2584	=item $success = $client->query ($flags, "text", \&cb)
952		2585
953	Queues a query to the client, calling the given callback with	2586	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>,	2587	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>.	2588	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
956		2589
957	Queries can fail, so check the return code. Or don't, as queries will become	2590	Queries can fail, so check the return code. Or don't, as queries will
958	reliable at some point in the future.	2591	become reliable at some point in the future.
959		2592
960	=cut	2593	=cut
961		2594
962	sub cf::client::query {	2595	sub cf::client::query {
963	my ($self, $flags, $text, $cb) = @_;	2596	my ($self, $flags, $text, $cb) = @_;
…		…
971	utf8::encode $text;	2604	utf8::encode $text;
972	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2605	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
973		2606
974	$self->send_packet ($self->{query_queue}[0][0])	2607	$self->send_packet ($self->{query_queue}[0][0])
975	if @{ $self->{query_queue} } == 1;	2608	if @{ $self->{query_queue} } == 1;
		2609
		2610	1
976	}	2611	}
977		2612
978	cf::client->attach (	2613	cf::client->attach (
		2614	on_connect => sub {
		2615	my ($ns) = @_;
		2616
		2617	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2618	},
979	on_reply => sub {	2619	on_reply => sub {
980	my ($ns, $msg) = @_;	2620	my ($ns, $msg) = @_;
981		2621
982	# this weird shuffling is so that direct followup queries	2622	# this weird shuffling is so that direct followup queries
983	# get handled first	2623	# get handled first
984	my $queue = delete $ns->{query_queue};	2624	my $queue = delete $ns->{query_queue}
		2625	or return; # be conservative, not sure how that can happen, but we saw a crash here
985		2626
986	(shift @$queue)->[1]->($msg);	2627	(shift @$queue)->[1]->($msg);
		2628	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
987		2629
988	push @{ $ns->{query_queue} }, @$queue;	2630	push @{ $ns->{query_queue} }, @$queue;
989		2631
990	if (@{ $ns->{query_queue} } == @$queue) {	2632	if (@{ $ns->{query_queue} } == @$queue) {
991	if (@$queue) {	2633	if (@$queue) {
…		…
993	} else {	2635	} else {
994	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2636	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
995	}	2637	}
996	}	2638	}
997	},	2639	},
		2640	on_exticmd => sub {
		2641	my ($ns, $buf) = @_;
		2642
		2643	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2644
		2645	if (ref $msg) {
		2646	my ($type, $reply, @payload) =
		2647	"ARRAY" eq ref $msg
		2648	? @$msg
		2649	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2650
		2651	if (my $cb = $EXTICMD{$type}) {
		2652	my @reply = $cb->($ns, @payload);
		2653
		2654	$ns->ext_reply ($reply, @reply)
		2655	if $reply;
		2656	}
		2657	} else {
		2658	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2659	}
		2660
		2661	cf::override;
		2662	},
998	);	2663	);
999		2664
1000	=item $client->coro (\&cb)	2665	=item $client->async (\&cb)
1001		2666
1002	Create a new coroutine, running the specified callback. The coroutine will	2667	Create a new coroutine, running the specified callback. The coroutine will
1003	be automatically cancelled when the client gets destroyed (e.g. on logout,	2668	be automatically cancelled when the client gets destroyed (e.g. on logout,
1004	or loss of connection).	2669	or loss of connection).
1005		2670
1006	=cut	2671	=cut
1007		2672
1008	sub cf::client::coro {	2673	sub cf::client::async {
1009	my ($self, $cb) = @_;	2674	my ($self, $cb) = @_;
1010		2675
1011	my $coro; $coro = async {	2676	my $coro = &Coro::async ($cb);
1012	eval {
1013	$cb->();
1014	};
1015	warn $@ if $@;
1016	};
1017		2677
1018	$coro->on_destroy (sub {	2678	$coro->on_destroy (sub {
1019	delete $self->{_coro}{$coro+0};	2679	delete $self->{_coro}{$coro+0};
1020	});	2680	});
1021		2681
…		…
1048	our $safe = new Safe "safe";	2708	our $safe = new Safe "safe";
1049	our $safe_hole = new Safe::Hole;	2709	our $safe_hole = new Safe::Hole;
1050		2710
1051	$SIG{FPE} = 'IGNORE';	2711	$SIG{FPE} = 'IGNORE';
1052		2712
1053	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2713	$safe->permit_only (Opcode::opset qw(
		2714	:base_core :base_mem :base_orig :base_math
		2715	grepstart grepwhile mapstart mapwhile
		2716	sort time
		2717	));
1054		2718
1055	# here we export the classes and methods available to script code	2719	# here we export the classes and methods available to script code
1056		2720
1057	=pod	2721	=pod
1058		2722
1059	The following fucntions and emthods are available within a safe environment:	2723	The following functions and methods are available within a safe environment:
1060		2724
1061	cf::object contr pay_amount pay_player map	2725	cf::object
		2726	contr pay_amount pay_player map x y force_find force_add
		2727	insert remove name archname title slaying race
		2728
1062	cf::object::player player	2729	cf::object::player
1063	cf::player peaceful	2730	player
1064	cf::map trigger	2731
		2732	cf::player
		2733	peaceful
		2734
		2735	cf::map
		2736	trigger
1065		2737
1066	=cut	2738	=cut
1067		2739
1068	for (	2740	for (
1069	["cf::object" => qw(contr pay_amount pay_player map)],	2741	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2742	insert remove inv name archname title slaying race)],
1070	["cf::object::player" => qw(player)],	2743	["cf::object::player" => qw(player)],
1071	["cf::player" => qw(peaceful)],	2744	["cf::player" => qw(peaceful)],
1072	["cf::map" => qw(trigger)],	2745	["cf::map" => qw(trigger)],
1073	) {	2746	) {
1074	no strict 'refs';	2747	no strict 'refs';
…		…
1145	=back	2818	=back
1146		2819
1147	=cut	2820	=cut
1148		2821
1149	#############################################################################	2822	#############################################################################
		2823	# the server's init and main functions
1150		2824
1151	=head2 EXTENSION DATABASE SUPPORT	2825	sub load_facedata($) {
		2826	my ($path) = @_;
1152		2827
1153	Crossfire maintains a very simple database for extension use. It can	2828	my $enc = JSON::XS->new->utf8->canonical;
1154	currently store anything that can be serialised using Storable, which
1155	excludes objects.
1156		2829
1157	The parameter C<$family> should best start with the name of the extension	2830	warn "loading facedata from $path\n";
1158	using it, it should be unique.
1159		2831
1160	=over 4	2832	my $facedata;
		2833	0 < aio_load $path, $facedata
		2834	or die "$path: $!";
1161		2835
1162	=item $hashref = cf::db_get $family	2836	$facedata = Coro::Storable::thaw $facedata;
1163		2837
1164	Return a hashref for use by the extension C<$family>, which can be	2838	$facedata->{version} == 2
1165	modified. After modifications, you have to call C<cf::db_dirty> or	2839	or cf::cleanup "$path: version mismatch, cannot proceed.";
1166	C<cf::db_sync>.
1167		2840
1168	=item $value = cf::db_get $family => $key	2841	# patch in the exptable
1169		2842	$facedata->{resource}{"res/exp_table"} = {
1170	Returns a single value from the database	2843	type => FT_RSRC,
1171		2844	data => $enc->encode ([map cf::level_to_min_exp $_, 0 .. 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	});	2845	};
		2846	cf::cede_to_tick;
1225		2847
1226	sub db_dirty() {
1227	$dirty = 1;
1228	$idle->start;
1229	}	2848	{
		2849	my $faces = $facedata->{faceinfo};
1230		2850
1231	sub db_get($;$) {	2851	while (my ($face, $info) = each %$faces) {
1232	@_ >= 2	2852	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1233	? $DB->{$_[0]}{$_[1]}	2853	cf::face::set_visibility $idx, $info->{visibility};
1234	: ($DB->{$_[0]} ||= { })	2854	cf::face::set_magicmap $idx, $info->{magicmap};
1235	}	2855	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		2856	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1236		2857
1237	sub db_put($$;$) {	2858	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	},	2859	}
1251	);
1252	}
1253		2860
1254	#############################################################################	2861	while (my ($face, $info) = each %$faces) {
1255	# the server's main()	2862	next unless $info->{smooth};
		2863	my $idx = cf::face::find $face
		2864	or next;
		2865	if (my $smooth = cf::face::find $info->{smooth}) {
		2866	cf::face::set_smooth $idx, $smooth;
		2867	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2868	} else {
		2869	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2870	}
		2871
		2872	cf::cede_to_tick;
		2873	}
		2874	}
		2875
		2876	{
		2877	my $anims = $facedata->{animinfo};
		2878
		2879	while (my ($anim, $info) = each %$anims) {
		2880	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2881	cf::cede_to_tick;
		2882	}
		2883
		2884	cf::anim::invalidate_all; # d'oh
		2885	}
		2886
		2887	{
		2888	# TODO: for gcfclient pleasure, we should give resources
		2889	# that gcfclient doesn't grok a >10000 face index.
		2890	my $res = $facedata->{resource};
		2891
		2892	my $soundconf = delete $res->{"res/sound.conf"};
		2893
		2894	while (my ($name, $info) = each %$res) {
		2895	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2896	my $data;
		2897
		2898	if ($info->{type} & 1) {
		2899	# prepend meta info
		2900
		2901	my $meta = $enc->encode ({
		2902	name => $name,
		2903	%{ $info->{meta} || {} },
		2904	});
		2905
		2906	$data = pack "(w/a*)*", $meta, $info->{data};
		2907	}
		2908
		2909	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		2910	cf::face::set_type $idx, $info->{type};
		2911
		2912	cf::cede_to_tick;
		2913	}
		2914
		2915	if ($soundconf) {
		2916	$soundconf = $enc->decode (delete $soundconf->{data});
		2917
		2918	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2919	my $sound = $soundconf->{compat}[$_]
		2920	or next;
		2921
		2922	my $face = cf::face::find "sound/$sound->[1]";
		2923	cf::sound::set $sound->[0] => $face;
		2924	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2925	}
		2926
		2927	while (my ($k, $v) = each %{$soundconf->{event}}) {
		2928	my $face = cf::face::find "sound/$v";
		2929	cf::sound::set $k => $face;
		2930	}
		2931	}
		2932	}
		2933
		2934	1
		2935	}
		2936
		2937	register_exticmd fx_want => sub {
		2938	my ($ns, $want) = @_;
		2939
		2940	while (my ($k, $v) = each %$want) {
		2941	$ns->fx_want ($k, $v);
		2942	}
		2943	};
		2944
		2945	sub reload_regions {
		2946	load_resource_file "$MAPDIR/regions"
		2947	or die "unable to load regions file\n";
		2948
		2949	for (cf::region::list) {
		2950	$_->{match} = qr/$_->{match}/
		2951	if exists $_->{match};
		2952	}
		2953	}
		2954
		2955	sub reload_facedata {
		2956	load_facedata "$DATADIR/facedata"
		2957	or die "unable to load facedata\n";
		2958	}
		2959
		2960	sub reload_archetypes {
		2961	load_resource_file "$DATADIR/archetypes"
		2962	or die "unable to load archetypes\n";
		2963	#d# NEED to laod twice to resolve forward references
		2964	# this really needs to be done in an extra post-pass
		2965	# (which needs to be synchronous, so solve it differently)
		2966	load_resource_file "$DATADIR/archetypes"
		2967	or die "unable to load archetypes\n";
		2968	}
		2969
		2970	sub reload_treasures {
		2971	load_resource_file "$DATADIR/treasures"
		2972	or die "unable to load treasurelists\n";
		2973	}
		2974
		2975	sub reload_resources {
		2976	warn "reloading resource files...\n";
		2977
		2978	reload_regions;
		2979	reload_facedata;
		2980	#reload_archetypes;#d#
		2981	reload_archetypes;
		2982	reload_treasures;
		2983
		2984	warn "finished reloading resource files\n";
		2985	}
		2986
		2987	sub init {
		2988	reload_resources;
		2989	}
1256		2990
1257	sub cfg_load {	2991	sub cfg_load {
1258	open my $fh, "<:utf8", cf::confdir . "/config"	2992	open my $fh, "<:utf8", "$CONFDIR/config"
1259	or return;	2993	or return;
1260		2994
1261	local $/;	2995	local $/;
1262	*CFG = YAML::Syck::Load <$fh>;	2996	*CFG = YAML::Syck::Load <$fh>;
		2997
		2998	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2999
		3000	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3001	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3002
		3003	if (exists $CFG{mlockall}) {
		3004	eval {
		3005	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3006	and die "WARNING: m(un)lockall failed: $!\n";
		3007	};
		3008	warn $@ if $@;
		3009	}
1263	}	3010	}
1264		3011
1265	sub main {	3012	sub main {
		3013	# we must not ever block the main coroutine
		3014	local $Coro::idle = sub {
		3015	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3016	(async {
		3017	Event::one_event;
		3018	})->prio (Coro::PRIO_MAX);
		3019	};
		3020
1266	cfg_load;	3021	cfg_load;
1267	db_load;	3022	db_init;
1268	load_extensions;	3023	load_extensions;
		3024
		3025	$TICK_WATCHER->start;
1269	Event::loop;	3026	Event::loop;
1270	}	3027	}
1271		3028
1272	#############################################################################	3029	#############################################################################
1273	# initialisation	3030	# initialisation and cleanup
1274		3031
1275	sub _perl_reload() {	3032	# install some emergency cleanup handlers
		3033	BEGIN {
		3034	for my $signal (qw(INT HUP TERM)) {
		3035	Event->signal (
		3036	reentrant => 0,
		3037	data => WF_AUTOCANCEL,
		3038	signal => $signal,
		3039	prio => 0,
		3040	cb => sub {
		3041	cf::cleanup "SIG$signal";
		3042	},
		3043	);
		3044	}
		3045	}
		3046
		3047	sub write_runtime {
		3048	my $runtime = "$LOCALDIR/runtime";
		3049
		3050	# first touch the runtime file to show we are still running:
		3051	# the fsync below can take a very very long time.
		3052
		3053	IO::AIO::aio_utime $runtime, undef, undef;
		3054
		3055	my $guard = cf::lock_acquire "write_runtime";
		3056
		3057	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3058	or return;
		3059
		3060	my $value = $cf::RUNTIME + 90 + 10;
		3061	# 10 is the runtime save interval, for a monotonic clock
		3062	# 60 allows for the watchdog to kill the server.
		3063
		3064	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3065	and return;
		3066
		3067	# always fsync - this file is important
		3068	aio_fsync $fh
		3069	and return;
		3070
		3071	# touch it again to show we are up-to-date
		3072	aio_utime $fh, undef, undef;
		3073
		3074	close $fh
		3075	or return;
		3076
		3077	aio_rename "$runtime~", $runtime
		3078	and return;
		3079
		3080	warn "runtime file written.\n";
		3081
		3082	1
		3083	}
		3084
		3085	sub emergency_save() {
		3086	my $freeze_guard = cf::freeze_mainloop;
		3087
		3088	warn "enter emergency perl save\n";
		3089
		3090	cf::sync_job {
		3091	# use a peculiar iteration method to avoid tripping on perl
		3092	# refcount bugs in for. also avoids problems with players
		3093	# and maps saved/destroyed asynchronously.
		3094	warn "begin emergency player save\n";
		3095	for my $login (keys %cf::PLAYER) {
		3096	my $pl = $cf::PLAYER{$login} or next;
		3097	$pl->valid or next;
		3098	$pl->save;
		3099	}
		3100	warn "end emergency player save\n";
		3101
		3102	warn "begin emergency map save\n";
		3103	for my $path (keys %cf::MAP) {
		3104	my $map = $cf::MAP{$path} or next;
		3105	$map->valid or next;
		3106	$map->save;
		3107	}
		3108	warn "end emergency map save\n";
		3109
		3110	warn "begin emergency database checkpoint\n";
		3111	BDB::db_env_txn_checkpoint $DB_ENV;
		3112	warn "end emergency database checkpoint\n";
		3113	};
		3114
		3115	warn "leave emergency perl save\n";
		3116	}
		3117
		3118	sub post_cleanup {
		3119	my ($make_core) = @_;
		3120
		3121	warn Carp::longmess "post_cleanup backtrace"
		3122	if $make_core;
		3123	}
		3124
		3125	sub do_reload_perl() {
		3126	# can/must only be called in main
		3127	if ($Coro::current != $Coro::main) {
		3128	warn "can only reload from main coroutine";
		3129	return;
		3130	}
		3131
1276	warn "reloading...";	3132	warn "reloading...";
1277		3133
1278	eval {	3134	warn "entering sync_job";
1279	local $FREEZE = 1;
1280		3135
		3136	cf::sync_job {
		3137	cf::write_runtime; # external watchdog should not bark
1281	cf::emergency_save;	3138	cf::emergency_save;
		3139	cf::write_runtime; # external watchdog should not bark
1282		3140
1283	# cancel all watchers	3141	warn "syncing database to disk";
		3142	BDB::db_env_txn_checkpoint $DB_ENV;
		3143
		3144	# if anything goes wrong in here, we should simply crash as we already saved
		3145
		3146	warn "cancelling all WF_AUTOCANCEL watchers";
1284	for (Event::all_watchers) {	3147	for (Event::all_watchers) {
1285	$_->cancel if $_->data & WF_AUTOCANCEL;	3148	$_->cancel if $_->data & WF_AUTOCANCEL;
1286	}	3149	}
1287		3150
		3151	warn "flushing outstanding aio requests";
		3152	for (;;) {
		3153	BDB::flush;
		3154	IO::AIO::flush;
		3155	Coro::cede;
		3156	last unless IO::AIO::nreqs || BDB::nreqs;
		3157	warn "iterate...";
		3158	}
		3159
		3160	++$RELOAD;
		3161
1288	# cancel all extension coros	3162	warn "cancelling all extension coros";
1289	$_->cancel for values %EXT_CORO;	3163	$_->cancel for values %EXT_CORO;
1290	%EXT_CORO = ();	3164	%EXT_CORO = ();
1291		3165
1292	# unload all extensions	3166	warn "removing commands";
1293	for (@exts) {	3167	%COMMAND = ();
		3168
		3169	warn "removing ext/exti commands";
		3170	%EXTCMD = ();
		3171	%EXTICMD = ();
		3172
		3173	warn "unloading/nuking all extensions";
		3174	for my $pkg (@EXTS) {
1294	warn "unloading <$_>";	3175	warn "... unloading $pkg";
1295	unload_extension $_;	3176
		3177	if (my $cb = $pkg->can ("unload")) {
		3178	eval {
		3179	$cb->($pkg);
		3180	1
		3181	} or warn "$pkg unloaded, but with errors: $@";
1296	}	3182	}
1297		3183
		3184	warn "... nuking $pkg";
		3185	Symbol::delete_package $pkg;
		3186	}
		3187
1298	# unload all modules loaded from $LIBDIR	3188	warn "unloading all perl modules loaded from $LIBDIR";
1299	while (my ($k, $v) = each %INC) {	3189	while (my ($k, $v) = each %INC) {
1300	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3190	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1301		3191
1302	warn "removing <$k>";	3192	warn "... unloading $k";
1303	delete $INC{$k};	3193	delete $INC{$k};
1304		3194
1305	$k =~ s/\.pm$//;	3195	$k =~ s/\.pm$//;
1306	$k =~ s/\//::/g;	3196	$k =~ s/\//::/g;
1307		3197
…		…
1310	}	3200	}
1311		3201
1312	Symbol::delete_package $k;	3202	Symbol::delete_package $k;
1313	}	3203	}
1314		3204
1315	# sync database to disk
1316	cf::db_sync;
1317	IO::AIO::flush;
1318
1319	# get rid of safe::, as good as possible	3205	warn "getting rid of safe::, as good as possible";
1320	Symbol::delete_package "safe::$_"	3206	Symbol::delete_package "safe::$_"
1321	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3207	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1322		3208
1323	# remove register_script_function callbacks
1324	# TODO
1325
1326	# unload cf.pm "a bit"	3209	warn "unloading cf.pm \"a bit\"";
1327	delete $INC{"cf.pm"};	3210	delete $INC{"cf.pm"};
		3211	delete $INC{"cf/pod.pm"};
1328		3212
1329	# don't, removes xs symbols, too,	3213	# don't, removes xs symbols, too,
1330	# and global variables created in xs	3214	# and global variables created in xs
1331	#Symbol::delete_package __PACKAGE__;	3215	#Symbol::delete_package __PACKAGE__;
1332		3216
1333	# reload cf.pm	3217	warn "unload completed, starting to reload now";
		3218
1334	warn "reloading cf.pm";	3219	warn "reloading cf.pm";
1335	require cf;	3220	require cf;
1336	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3221	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1337		3222
1338	# load config and database again	3223	warn "loading config and database again";
1339	cf::cfg_load;	3224	cf::cfg_load;
1340	cf::db_load;
1341		3225
1342	# load extensions
1343	warn "load extensions";	3226	warn "loading extensions";
1344	cf::load_extensions;	3227	cf::load_extensions;
1345		3228
1346	# reattach attachments to objects	3229	warn "reattaching attachments to objects/players";
1347	warn "reattach";	3230	_global_reattach; # objects, sockets
1348	_global_reattach;	3231	warn "reattaching attachments to maps";
		3232	reattach $_ for values %MAP;
		3233	warn "reattaching attachments to players";
		3234	reattach $_ for values %PLAYER;
		3235
		3236	warn "leaving sync_job";
		3237
		3238	1
		3239	} or do {
		3240	warn $@;
		3241	warn "error while reloading, exiting.";
		3242	exit 1;
1349	};	3243	};
1350	warn $@ if $@;
1351		3244
1352	warn "reloaded";	3245	warn "reloaded";
1353	};	3246	};
1354		3247
1355	sub perl_reload() {	3248	our $RELOAD_WATCHER; # used only during reload
1356	_perl_reload;
1357	}
1358		3249
1359	register "<global>", __PACKAGE__;	3250	sub reload_perl() {
		3251	# doing reload synchronously and two reloads happen back-to-back,
		3252	# coro crashes during coro_state_free->destroy here.
1360		3253
		3254	$RELOAD_WATCHER ||= Event->timer (
		3255	reentrant => 0,
		3256	after => 0,
		3257	data => WF_AUTOCANCEL,
		3258	cb => sub {
		3259	do_reload_perl;
		3260	undef $RELOAD_WATCHER;
		3261	},
		3262	);
		3263	}
		3264
1361	register_command "perl-reload" => sub {	3265	register_command "reload" => sub {
1362	my ($who, $arg) = @_;	3266	my ($who, $arg) = @_;
1363		3267
1364	if ($who->flag (FLAG_WIZ)) {	3268	if ($who->flag (FLAG_WIZ)) {
1365	$who->message ("reloading...");	3269	$who->message ("reloading server.");
1366	_perl_reload;	3270	async { reload_perl };
1367	}	3271	}
1368	};	3272	};
1369		3273
1370	unshift @INC, $LIBDIR;	3274	unshift @INC, $LIBDIR;
1371		3275
		3276	my $bug_warning = 0;
		3277
		3278	our @WAIT_FOR_TICK;
		3279	our @WAIT_FOR_TICK_BEGIN;
		3280
		3281	sub wait_for_tick {
		3282	return unless $TICK_WATCHER->is_active;
		3283	return if $Coro::current == $Coro::main;
		3284
		3285	my $signal = new Coro::Signal;
		3286	push @WAIT_FOR_TICK, $signal;
		3287	$signal->wait;
		3288	}
		3289
		3290	sub wait_for_tick_begin {
		3291	return unless $TICK_WATCHER->is_active;
		3292	return if $Coro::current == $Coro::main;
		3293
		3294	my $signal = new Coro::Signal;
		3295	push @WAIT_FOR_TICK_BEGIN, $signal;
		3296	$signal->wait;
		3297	}
		3298
		3299	my $min = 1e6;#d#
		3300	my $avg = 10;
1372	$TICK_WATCHER = Event->timer (	3301	$TICK_WATCHER = Event->timer (
1373	reentrant => 0,	3302	reentrant => 0,
		3303	parked => 1,
1374	prio => 0,	3304	prio => 0,
1375	at => $NEXT_TICK || $TICK,	3305	at => $NEXT_TICK || $TICK,
1376	data => WF_AUTOCANCEL,	3306	data => WF_AUTOCANCEL,
1377	cb => sub {	3307	cb => sub {
1378	unless ($FREEZE) {	3308	if ($Coro::current != $Coro::main) {
		3309	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3310	unless ++$bug_warning > 10;
		3311	return;
		3312	}
		3313
		3314	$NOW = $tick_start = Event::time;
		3315
1379	cf::server_tick; # one server iteration	3316	cf::server_tick; # one server iteration
1380	$RUNTIME += $TICK;	3317
		3318	0 && sync_job {#d#
		3319	for(1..10) {
		3320	my $t = Event::time;
		3321	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3322	or die;
		3323
		3324	$map->width (50);
		3325	$map->height (50);
		3326	$map->alloc;
		3327	$map->_load_objects ("/tmp/x.map", 1);
		3328	my $t = Event::time - $t;
		3329
		3330	#next unless $t < 0.0013;#d#
		3331	if ($t < $min) {
		3332	$min = $t;
		3333	}
		3334	$avg = $avg * 0.99 + $t * 0.01;
		3335	}
		3336	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3337	exit 0;
		3338	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
1381	}	3339	};
1382		3340
		3341	$RUNTIME += $TICK;
1383	$NEXT_TICK += $TICK;	3342	$NEXT_TICK += $TICK;
1384		3343
		3344	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3345	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3346	Coro::async_pool {
		3347	write_runtime
		3348	or warn "ERROR: unable to write runtime file: $!";
		3349	};
		3350	}
		3351
		3352	# my $AFTER = Event::time;
		3353	# warn $AFTER - $NOW;#d#
		3354
		3355	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3356	$sig->send;
		3357	}
		3358	while (my $sig = shift @WAIT_FOR_TICK) {
		3359	$sig->send;
		3360	}
		3361
		3362	$NOW = Event::time;
		3363
1385	# if we are delayed by four ticks or more, skip them all	3364	# if we are delayed by four ticks or more, skip them all
1386	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3365	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1387		3366
1388	$TICK_WATCHER->at ($NEXT_TICK);	3367	$TICK_WATCHER->at ($NEXT_TICK);
1389	$TICK_WATCHER->start;	3368	$TICK_WATCHER->start;
		3369
		3370	$LOAD = ($NOW - $tick_start) / $TICK;
		3371	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3372
		3373	_post_tick;
		3374
		3375
1390	},	3376	},
1391	);	3377	);
1392		3378
		3379	{
		3380	BDB::max_poll_time $TICK * 0.1;
		3381	$BDB_POLL_WATCHER = Event->io (
		3382	reentrant => 0,
		3383	fd => BDB::poll_fileno,
		3384	poll => 'r',
		3385	prio => 0,
		3386	data => WF_AUTOCANCEL,
		3387	cb => \&BDB::poll_cb,
		3388	);
		3389	BDB::min_parallel 8;
		3390
		3391	BDB::set_sync_prepare {
		3392	my $status;
		3393	my $current = $Coro::current;
		3394	(
		3395	sub {
		3396	$status = $!;
		3397	$current->ready; undef $current;
		3398	},
		3399	sub {
		3400	Coro::schedule while defined $current;
		3401	$! = $status;
		3402	},
		3403	)
		3404	};
		3405
		3406	unless ($DB_ENV) {
		3407	$DB_ENV = BDB::db_env_create;
		3408
		3409	cf::sync_job {
		3410	eval {
		3411	BDB::db_env_open
		3412	$DB_ENV,
		3413	$BDBDIR,
		3414	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3415	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3416	0666;
		3417
		3418	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3419
		3420	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3421	$DB_ENV->set_lk_detect;
		3422	};
		3423
		3424	cf::cleanup "db_env_open(db): $@" if $@;
		3425	};
		3426	}
		3427	}
		3428
		3429	{
		3430	IO::AIO::min_parallel 8;
		3431
		3432	undef $Coro::AIO::WATCHER;
1393	IO::AIO::max_poll_time $TICK * 0.2;	3433	IO::AIO::max_poll_time $TICK * 0.1;
1394		3434	$AIO_POLL_WATCHER = Event->io (
1395	Event->io (fd => IO::AIO::poll_fileno,	3435	reentrant => 0,
1396	poll => 'r',
1397	prio => 5,
1398	data => WF_AUTOCANCEL,	3436	data => WF_AUTOCANCEL,
		3437	fd => IO::AIO::poll_fileno,
		3438	poll => 'r',
		3439	prio => 6,
1399	cb => \&IO::AIO::poll_cb);	3440	cb => \&IO::AIO::poll_cb,
		3441	);
		3442	}
1400		3443
1401	# we must not ever block the main coroutine	3444	my $_log_backtrace;
1402	$Coro::idle = sub {	3445
1403	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3446	sub _log_backtrace {
1404	warn "FATAL: Coro::idle was called, major BUG\n";	3447	my ($msg, @addr) = @_;
1405	(Coro::unblock_sub {	3448
1406	Event::one_event;	3449	$msg =~ s/\n//;
1407	})->();	3450
1408	};	3451	# limit the # of concurrent backtraces
		3452	if ($_log_backtrace < 2) {
		3453	++$_log_backtrace;
		3454	async {
		3455	my @bt = fork_call {
		3456	@addr = map { sprintf "%x", $_ } @addr;
		3457	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3458	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3459	or die "addr2line: $!";
		3460
		3461	my @funcs;
		3462	my @res = <$fh>;
		3463	chomp for @res;
		3464	while (@res) {
		3465	my ($func, $line) = splice @res, 0, 2, ();
		3466	push @funcs, "[$func] $line";
		3467	}
		3468
		3469	@funcs
		3470	};
		3471
		3472	LOG llevInfo, "[ABT] $msg\n";
		3473	LOG llevInfo, "[ABT] $_\n" for @bt;
		3474	--$_log_backtrace;
		3475	};
		3476	} else {
		3477	LOG llevInfo, "[ABT] $msg\n";
		3478	LOG llevInfo, "[ABT] [suppressed]\n";
		3479	}
		3480	}
		3481
		3482	# load additional modules
		3483	use cf::pod;
		3484
		3485	END { cf::emergency_save }
1409		3486
1410	1	3487	1
1411		3488

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