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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.111 by root, Mon Jan 1 12:28:47 2007 UTC vs.
Revision 1.365 by root, Tue Sep 11 13:27:56 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3;	15	use Coro 3.64 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
		28	use Data::Dumper;
20	use Digest::MD5;	29	use Digest::MD5;
21	use Fcntl;	30	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.32 ();
24	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
25		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
26	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
27		44
28	# 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?
29	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
30		47
31	$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
32		49
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		51
35	our %COMMAND = ();	52	our %COMMAND = ();
36	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
38		60
		61	our $RELOAD; # number of reloads so far
39	our @EVENT;	62	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		63
42	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(!)
43	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	80	our $NEXT_TICK;
45	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 $BDB_CHECKPOINT_WATCHER;
		86	our $BDB_TRICKLE_WATCHER;
		87	our $DB_ENV;
46		88
47	our %CFG;	89	our %CFG;
48		90
49	our $UPTIME; $UPTIME ||= time;	91	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	92	our $RUNTIME;
51		93
52	our %MAP; # all maps	94	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	95	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	96	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	97
56	our %EXT_CORO;	98	# used to convert map paths into valid unix filenames by replacing / by ∕
		99	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		100
		101	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		102	our $LOADAVG; # same thing, but with alpha-smoothing
		103	our $tick_start; # for load detecting purposes
57		104
58	binmode STDOUT;	105	binmode STDOUT;
59	binmode STDERR;	106	binmode STDERR;
60		107
61	# read virtual server time, if available	108	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	109	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	110	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	111	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	112	$RUNTIME = <$fh> + 0.;
66	}	113	}
67		114
68	mkdir cf::localdir;	115	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	116	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		117
74	# a special map that is always available	118	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		119
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	120	sub cf::map::normalise;
78		121
79	#############################################################################	122	#############################################################################
80		123
81	=head2 GLOBAL VARIABLES	124	=head2 GLOBAL VARIABLES
82		125
…		…
89	=item $cf::RUNTIME	132	=item $cf::RUNTIME
90		133
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	134	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	135	every server tick.
93		136
94	=item $cf::LIBDIR	137	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		138	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		139	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		140
96	The perl library directory, where extensions and cf-specific modules can	141	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	142	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		143	unique-items directory, player file directory, random maps directory and
		144	database environment.
98		145
99	=item $cf::NOW	146	=item $cf::NOW
100		147
101	The time of the last (current) server tick.	148	The time of the last (current) server tick.
102		149
103	=item $cf::TICK	150	=item $cf::TICK
104		151
105	The interval between server ticks, in seconds.	152	The interval between server ticks, in seconds.
		153
		154	=item $cf::LOADAVG
		155
		156	The current CPU load on the server (alpha-smoothed), as a value between 0
		157	(none) and 1 (overloaded), indicating how much time is spent on processing
		158	objects per tick. Healthy values are < 0.5.
		159
		160	=item $cf::LOAD
		161
		162	The raw value load value from the last tick.
106		163
107	=item %cf::CFG	164	=item %cf::CFG
108		165
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	166	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	167	from wherever your confdir points to.
		168
		169	=item cf::wait_for_tick, cf::wait_for_tick_begin
		170
		171	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		172	returns directly I<after> the tick processing (and consequently, can only wake one process
		173	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		174
		175	=item @cf::INVOKE_RESULTS
		176
		177	This array contains the results of the last C<invoke ()> call. When
		178	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		179	that call.
111		180
112	=back	181	=back
113		182
114	=cut	183	=cut
115		184
116	BEGIN {	185	BEGIN {
117	*CORE::GLOBAL::warn = sub {	186	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	187	my $msg = join "", @_;
119	utf8::encode $msg;
120		188
121	$msg .= "\n"	189	$msg .= "\n"
122	unless $msg =~ /\n$/;	190	unless $msg =~ /\n$/;
123		191
		192	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		193
124	LOG llevError, "cfperl: $msg";	194	LOG llevError, $msg;
125	};	195	};
126	}	196	}
127		197
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	198	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	199	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	200	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	201	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	202	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		203	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	204	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		205
135	# we bless all objects into (empty) derived classes to force a method lookup	206	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	207	# within the Safe compartment.
137	for my $pkg (qw(	208	for my $pkg (qw(
138	cf::global cf::attachable	209	cf::global cf::attachable
…		…
147		218
148	$Event::DIED = sub {	219	$Event::DIED = sub {
149	warn "error in event callback: @_";	220	warn "error in event callback: @_";
150	};	221	};
151		222
152	my %ext_pkg;	223	#############################################################################
153	my @exts;
154	my @hook;
155		224
156	=head2 UTILITY FUNCTIONS	225	=head2 UTILITY FUNCTIONS
157		226
158	=over 4	227	=over 4
159		228
160	=cut	229	=item dumpval $ref
161		230
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	231	=cut
		232
		233	sub dumpval {
		234	eval {
		235	local $SIG{__DIE__};
		236	my $d;
		237	if (1) {
		238	$d = new Data::Dumper([$_[0]], ["*var"]);
		239	$d->Terse(1);
		240	$d->Indent(2);
		241	$d->Quotekeys(0);
		242	$d->Useqq(1);
		243	#$d->Bless(...);
		244	$d->Seen($_[1]) if @_ > 1;
		245	$d = $d->Dump();
		246	}
		247	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		248	$d
		249	} || "[unable to dump $_[0]: '$@']";
		250	}
163		251
164	=item $ref = cf::from_json $json	252	=item $ref = cf::from_json $json
165		253
166	Converts a JSON string into the corresponding perl data structure.	254	Converts a JSON string into the corresponding perl data structure.
167		255
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	256	=item $json = cf::to_json $ref
176		257
177	Converts a perl data structure into its JSON representation.	258	Converts a perl data structure into its JSON representation.
178		259
179	=cut	260	=cut
180		261
181	sub to_json($) {	262	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	263
183	JSON::Syck::Dump $_[0]	264	sub to_json ($) { $json_coder->encode ($_[0]) }
		265	sub from_json ($) { $json_coder->decode ($_[0]) }
		266
		267	=item cf::lock_wait $string
		268
		269	Wait until the given lock is available. See cf::lock_acquire.
		270
		271	=item my $lock = cf::lock_acquire $string
		272
		273	Wait until the given lock is available and then acquires it and returns
		274	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		275	for example when the coroutine gets canceled), the lock is automatically
		276	returned.
		277
		278	Locks are *not* recursive, locking from the same coro twice results in a
		279	deadlocked coro.
		280
		281	Lock names should begin with a unique identifier (for example, cf::map::find
		282	uses map_find and cf::map::load uses map_load).
		283
		284	=item $locked = cf::lock_active $string
		285
		286	Return true if the lock is currently active, i.e. somebody has locked it.
		287
		288	=cut
		289
		290	our %LOCK;
		291	our %LOCKER;#d#
		292
		293	sub lock_wait($) {
		294	my ($key) = @_;
		295
		296	if ($LOCKER{$key} == $Coro::current) {#d#
		297	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		298	return;#d#
		299	}#d#
		300
		301	# wait for lock, if any
		302	while ($LOCK{$key}) {
		303	push @{ $LOCK{$key} }, $Coro::current;
		304	Coro::schedule;
		305	}
184	}	306	}
		307
		308	sub lock_acquire($) {
		309	my ($key) = @_;
		310
		311	# wait, to be sure we are not locked
		312	lock_wait $key;
		313
		314	$LOCK{$key} = [];
		315	$LOCKER{$key} = $Coro::current;#d#
		316
		317	Coro::guard {
		318	delete $LOCKER{$key};#d#
		319	# wake up all waiters, to be on the safe side
		320	$_->ready for @{ delete $LOCK{$key} };
		321	}
		322	}
		323
		324	sub lock_active($) {
		325	my ($key) = @_;
		326
		327	! ! $LOCK{$key}
		328	}
		329
		330	sub freeze_mainloop {
		331	return unless $TICK_WATCHER->is_active;
		332
		333	my $guard = Coro::guard {
		334	$TICK_WATCHER->start;
		335	};
		336	$TICK_WATCHER->stop;
		337	$guard
		338	}
		339
		340	=item cf::get_slot $time[, $priority[, $name]]
		341
		342	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		343	This call blocks and returns only when you have at least C<$time> seconds
		344	of cpu time till the next tick. The slot is only valid till the next cede.
		345
		346	The optional C<$name> can be used to identify the job to run. It might be
		347	used for statistical purposes and should identify the same time-class.
		348
		349	Useful for short background jobs.
		350
		351	=cut
		352
		353	our @SLOT_QUEUE;
		354	our $SLOT_QUEUE;
		355
		356	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		357	$SLOT_QUEUE = Coro::async {
		358	my $signal = new Coro::Signal;
		359
		360	while () {
		361	next_job:
		362	my $avail = cf::till_tick;
		363	if ($avail > 0.01) {
		364	for (0 .. $#SLOT_QUEUE) {
		365	if ($SLOT_QUEUE[$_][0] < $avail) {
		366	my $job = splice @SLOT_QUEUE, $_, 1, ();
		367	$job->[2]->send;
		368	Coro::cede;
		369	goto next_job;
		370	}
		371	}
		372	}
		373
		374	if (@SLOT_QUEUE) {
		375	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		376	push @cf::WAIT_FOR_TICK, $signal;
		377	$signal->wait;
		378	} else {
		379	Coro::schedule;
		380	}
		381	}
		382	};
		383
		384	sub get_slot($;$$) {
		385	my ($time, $pri, $name) = @_;
		386
		387	$time = $TICK * .6 if $time > $TICK * .6;
		388	my $sig = new Coro::Signal;
		389
		390	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		391	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		392	$SLOT_QUEUE->ready;
		393	$sig->wait;
		394	}
		395
		396	=item cf::async { BLOCK }
		397
		398	Currently the same as Coro::async_pool, meaning you cannot use
		399	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		400	thing you are allowed to do is call C<prio> on it.
		401
		402	=cut
		403
		404	BEGIN { *async = \&Coro::async_pool }
185		405
186	=item cf::sync_job { BLOCK }	406	=item cf::sync_job { BLOCK }
187		407
188	The design of crossfire+ requires that the main coro ($Coro::main) is	408	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	409	is always able to handle events or runnable, as Crossfire TRT is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	410	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		411	acceptable.
191		412
192	If it must be done, put the blocking parts into C<sync_job>. This will run	413	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	414	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	415	server will be frozen during this time, so the block should either finish
195	fast or be very important.	416	fast or be very important.
…		…
197	=cut	418	=cut
198		419
199	sub sync_job(&) {	420	sub sync_job(&) {
200	my ($job) = @_;	421	my ($job) = @_;
201		422
202	my $busy = 1;
203	my @res;
204
205	my $coro = Coro::async {
206	@res = eval { $job->() };
207	warn $@ if $@;
208	undef $busy;
209	};
210
211	if ($Coro::current == $Coro::main) {	423	if ($Coro::current == $Coro::main) {
		424	my $time = Event::time;
		425
		426	# this is the main coro, too bad, we have to block
		427	# till the operation succeeds, freezing the server :/
		428
212	# TODO: use suspend/resume instead	429	# TODO: use suspend/resume instead
213	local $FREEZE = 1;	430	# (but this is cancel-safe)
		431	my $freeze_guard = freeze_mainloop;
		432
		433	my $busy = 1;
		434	my @res;
		435
		436	(async {
		437	@res = eval { $job->() };
		438	warn $@ if $@;
		439	undef $busy;
214	$coro->prio (Coro::PRIO_MAX);	440	})->prio (Coro::PRIO_MAX);
		441
215	while ($busy) {	442	while ($busy) {
216	Coro::cede_notself;	443	Coro::cede or Event::one_event;
217	Event::one_event unless Coro::nready;
218	}	444	}
		445
		446	$time = Event::time - $time;
		447
		448	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		449	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		450
		451	$tick_start += $time; # do not account sync jobs to server load
		452
		453	wantarray ? @res : $res[0]
219	} else {	454	} else {
220	$coro->join;	455	# we are in another coroutine, how wonderful, everything just works
		456
		457	$job->()
221	}	458	}
222
223	wantarray ? @res : $res[0]
224	}	459	}
225		460
226	=item $coro = cf::coro { BLOCK }	461	=item $coro = cf::async_ext { BLOCK }
227		462
228	Creates and returns a new coro. This coro is automcatially being canceled	463	Like async, but this coro is automatically being canceled when the
229	when the extension calling this is being unloaded.	464	extension calling this is being unloaded.
230		465
231	=cut	466	=cut
232		467
233	sub coro(&) {	468	sub async_ext(&) {
234	my $cb = shift;	469	my $cb = shift;
235		470
236	my $coro; $coro = async {	471	my $coro = &Coro::async ($cb);
237	eval {
238	$cb->();
239	};
240	warn $@ if $@;
241	};
242		472
243	$coro->on_destroy (sub {	473	$coro->on_destroy (sub {
244	delete $EXT_CORO{$coro+0};	474	delete $EXT_CORO{$coro+0};
245	});	475	});
246	$EXT_CORO{$coro+0} = $coro;	476	$EXT_CORO{$coro+0} = $coro;
247		477
248	$coro	478	$coro
249	}	479	}
250		480
251	sub write_runtime {	481	=item fork_call { }, $args
252	my $runtime = cf::localdir . "/runtime";
253		482
254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	483	Executes the given code block with the given arguments in a seperate
255	or return;	484	process, returning the results. Everything must be serialisable with
		485	Coro::Storable. May, of course, block. Note that the executed sub may
		486	never block itself or use any form of Event handling.
256		487
257	my $value = $cf::RUNTIME;	488	=cut
258	(aio_write $fh, 0, (length $value), $value, 0) <= 0
259	and return;
260		489
261	aio_fsync $fh	490	sub fork_call(&@) {
262	and return;	491	my ($cb, @args) = @_;
263		492
264	close $fh	493	# we seemingly have to make a local copy of the whole thing,
265	or return;	494	# otherwise perl prematurely frees the stuff :/
		495	# TODO: investigate and fix (likely this will be rather laborious)
266		496
267	aio_rename "$runtime~", $runtime	497	my @res = Coro::Util::fork_eval {
268	and return;	498	reset_signals;
		499	&$cb
		500	}, @args;
269		501
		502	wantarray ? @res : $res[-1]
		503	}
		504
		505	=item $value = cf::db_get $family => $key
		506
		507	Returns a single value from the environment database.
		508
		509	=item cf::db_put $family => $key => $value
		510
		511	Stores the given C<$value> in the family. It can currently store binary
		512	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		513
		514	=item $db = cf::db_table "name"
		515
		516	Create and/or open a new database table. The string must not be "db" and must be unique
		517	within each server.
		518
		519	=cut
		520
		521	sub db_table($) {
		522	my ($name) = @_;
		523	my $db = BDB::db_create $DB_ENV;
		524
		525	eval {
		526	$db->set_flags (BDB::CHKSUM);
		527
		528	utf8::encode $name;
		529	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		530	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		531	cf::cleanup "db_open(db): $!" if $!;
		532	};
		533	cf::cleanup "db_open(db): $@" if $@;
		534
		535	$db
		536	}
		537
		538	our $DB;
		539
		540	sub db_init {
		541	cf::sync_job {
		542	$DB ||= db_table "db";
		543	};
		544	}
		545
		546	sub db_get($$) {
		547	my $key = "$_[0]/$_[1]";
		548
		549	cf::sync_job {
		550	BDB::db_get $DB, undef, $key, my $data;
		551
		552	$! ? ()
		553	: $data
270	1	554	}
		555	}
		556
		557	sub db_put($$$) {
		558	BDB::dbreq_pri 4;
		559	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		560	}
		561
		562	=item cf::cache $id => [$paths...], $processversion => $process
		563
		564	Generic caching function that returns the value of the resource $id,
		565	caching and regenerating as required.
		566
		567	This function can block.
		568
		569	=cut
		570
		571	sub cache {
		572	my ($id, $src, $processversion, $process) = @_;
		573
		574	my $meta =
		575	join "\x00",
		576	$processversion,
		577	map {
		578	aio_stat $_
		579	and Carp::croak "$_: $!";
		580
		581	($_, (stat _)[7,9])
		582	} @$src;
		583
		584	my $dbmeta = db_get cache => "$id/meta";
		585	if ($dbmeta ne $meta) {
		586	# changed, we may need to process
		587
		588	my @data;
		589	my $md5;
		590
		591	for (0 .. $#$src) {
		592	0 <= aio_load $src->[$_], $data[$_]
		593	or Carp::croak "$src->[$_]: $!";
		594	}
		595
		596	# if processing is expensive, check
		597	# checksum first
		598	if (1) {
		599	$md5 =
		600	join "\x00",
		601	$processversion,
		602	map {
		603	cf::cede_to_tick;
		604	($src->[$_], Digest::MD5::md5_hex $data[$_])
		605	} 0.. $#$src;
		606
		607
		608	my $dbmd5 = db_get cache => "$id/md5";
		609	if ($dbmd5 eq $md5) {
		610	db_put cache => "$id/meta", $meta;
		611
		612	return db_get cache => "$id/data";
		613	}
		614	}
		615
		616	my $t1 = Time::HiRes::time;
		617	my $data = $process->(\@data);
		618	my $t2 = Time::HiRes::time;
		619
		620	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		621
		622	db_put cache => "$id/data", $data;
		623	db_put cache => "$id/md5" , $md5;
		624	db_put cache => "$id/meta", $meta;
		625
		626	return $data;
		627	}
		628
		629	db_get cache => "$id/data"
		630	}
		631
		632	=item cf::datalog type => key => value, ...
		633
		634	Log a datalog packet of the given type with the given key-value pairs.
		635
		636	=cut
		637
		638	sub datalog($@) {
		639	my ($type, %kv) = @_;
		640	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
271	}	641	}
272		642
273	=back	643	=back
274		644
275	=cut	645	=cut
276
277	#############################################################################
278
279	package cf::path;
280
281	sub new {
282	my ($class, $path, $base) = @_;
283
284	$path = $path->as_string if ref $path;
285
286	my $self = bless { }, $class;
287
288	if ($path =~ s{^\?random/}{}) {
289	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
290	$self->{random} = cf::from_json $data;
291	} else {
292	if ($path =~ s{^~([^/]+)?}{}) {
293	$self->{user_rel} = 1;
294
295	if (defined $1) {
296	$self->{user} = $1;
297	} elsif ($base =~ m{^~([^/]+)/}) {
298	$self->{user} = $1;
299	} else {
300	warn "cannot resolve user-relative path without user <$path,$base>\n";
301	}
302	} elsif ($path =~ /^\//) {
303	# already absolute
304	} else {
305	$base =~ s{[^/]+/?$}{};
306	return $class->new ("$base/$path");
307	}
308
309	for ($path) {
310	redo if s{/\.?/}{/};
311	redo if s{/[^/]+/\.\./}{/};
312	}
313	}
314
315	$self->{path} = $path;
316
317	$self
318	}
319
320	# the name / primary key / in-game path
321	sub as_string {
322	my ($self) = @_;
323
324	$self->{user_rel} ? "~$self->{user}$self->{path}"
325	: $self->{random} ? "?random/$self->{path}"
326	: $self->{path}
327	}
328
329	# the displayed name, this is a one way mapping
330	sub visible_name {
331	my ($self) = @_;
332
333	# if (my $rmp = $self->{random}) {
334	# # todo: be more intelligent about this
335	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
336	# } else {
337	$self->as_string
338	# }
339	}
340
341	# escape the /'s in the path
342	sub _escaped_path {
343	# ∕ is U+2215
344	(my $path = $_[0]{path}) =~ s/\//∕/g;
345	$path
346	}
347
348	# the original (read-only) location
349	sub load_path {
350	my ($self) = @_;
351
352	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
353	}
354
355	# the temporary/swap location
356	sub save_path {
357	my ($self) = @_;
358
359	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
360	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
361	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
362	}
363
364	# the unique path, might be eq to save_path
365	sub uniq_path {
366	my ($self) = @_;
367
368	$self->{user_rel} || $self->{random}
369	? undef
370	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
371	}
372
373	# return random map parameters, or undef
374	sub random_map_params {
375	my ($self) = @_;
376
377	$self->{random}
378	}
379
380	# this is somewhat ugly, but style maps do need special treatment
381	sub is_style_map {
382	$_[0]{path} =~ m{^/styles/}
383	}
384
385	package cf;
386		646
387	#############################################################################	647	#############################################################################
388		648
389	=head2 ATTACHABLE OBJECTS	649	=head2 ATTACHABLE OBJECTS
390		650
…		…
392	attach callbacks/event handlers (a collection of which is called an "attachment")	652	attach callbacks/event handlers (a collection of which is called an "attachment")
393	to it. All such attachable objects support the following methods.	653	to it. All such attachable objects support the following methods.
394		654
395	In the following description, CLASS can be any of C<global>, C<object>	655	In the following description, CLASS can be any of C<global>, C<object>
396	C<player>, C<client> or C<map> (i.e. the attachable objects in	656	C<player>, C<client> or C<map> (i.e. the attachable objects in
397	crossfire+).	657	Crossfire TRT).
398		658
399	=over 4	659	=over 4
400		660
401	=item $attachable->attach ($attachment, key => $value...)	661	=item $attachable->attach ($attachment, key => $value...)
402		662
…		…
516	our @CB_TYPE = (); # registry for type (cf-object class) based events	776	our @CB_TYPE = (); # registry for type (cf-object class) based events
517	our @CB_MAP = ();	777	our @CB_MAP = ();
518		778
519	my %attachment;	779	my %attachment;
520		780
		781	sub cf::attachable::thawer_merge {
		782	# simply override everything except _meta
		783	local $_[0]{_meta};
		784	%{$_[0]} = %{$_[1]};
		785	}
		786
521	sub _attach_cb($$$$) {	787	sub _attach_cb($$$$) {
522	my ($registry, $event, $prio, $cb) = @_;	788	my ($registry, $event, $prio, $cb) = @_;
523		789
524	use sort 'stable';	790	use sort 'stable';
525		791
…		…
559	$registry = $CB_TYPE[$object_type] ||= [];	825	$registry = $CB_TYPE[$object_type] ||= [];
560		826
561	} elsif ($type eq "subtype") {	827	} elsif ($type eq "subtype") {
562	defined $object_type or Carp::croak "subtype specified without type";	828	defined $object_type or Carp::croak "subtype specified without type";
563	my $object_subtype = shift @arg;	829	my $object_subtype = shift @arg;
564	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	830	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
565		831
566	} elsif ($type eq "package") {	832	} elsif ($type eq "package") {
567	my $pkg = shift @arg;	833	my $pkg = shift @arg;
568		834
569	while (my ($name, $id) = each %cb_id) {	835	while (my ($name, $id) = each %cb_id) {
…		…
598	_attach $registry, $klass, @attach;	864	_attach $registry, $klass, @attach;
599	}	865	}
600		866
601	$obj->{$name} = \%arg;	867	$obj->{$name} = \%arg;
602	} else {	868	} else {
603	warn "object uses attachment '$name' that is not available, postponing.\n";	869	warn "object uses attachment '$name' which is not available, postponing.\n";
604	}	870	}
605		871
606	$obj->{_attachment}{$name} = undef;	872	$obj->{_attachment}{$name} = undef;
607	}	873	}
608		874
…		…
610	if (ref $_[0]) {	876	if (ref $_[0]) {
611	_object_attach @_;	877	_object_attach @_;
612	} else {	878	} else {
613	_attach shift->_attach_registry, @_;	879	_attach shift->_attach_registry, @_;
614	}	880	}
		881	_recalc_want;
615	};	882	};
616		883
617	# all those should be optimised	884	# all those should be optimised
618	sub cf::attachable::detach {	885	sub cf::attachable::detach {
619	my ($obj, $name) = @_;	886	my ($obj, $name) = @_;
…		…
622	delete $obj->{_attachment}{$name};	889	delete $obj->{_attachment}{$name};
623	reattach ($obj);	890	reattach ($obj);
624	} else {	891	} else {
625	Carp::croak "cannot, currently, detach class attachments";	892	Carp::croak "cannot, currently, detach class attachments";
626	}	893	}
		894	_recalc_want;
627	};	895	};
628		896
629	sub cf::attachable::attached {	897	sub cf::attachable::attached {
630	my ($obj, $name) = @_;	898	my ($obj, $name) = @_;
631		899
…		…
646	";	914	";
647	die if $@;	915	die if $@;
648	}	916	}
649		917
650	our $override;	918	our $override;
651	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	919	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
652		920
653	sub override {	921	sub override {
654	$override = 1;	922	$override = 1;
655	@invoke_results = ();	923	@INVOKE_RESULTS = (@_);
656	}	924	}
657		925
658	sub do_invoke {	926	sub do_invoke {
659	my $event = shift;	927	my $event = shift;
660	my $callbacks = shift;	928	my $callbacks = shift;
661		929
662	@invoke_results = ();	930	@INVOKE_RESULTS = ();
663		931
664	local $override;	932	local $override;
665		933
666	for (@$callbacks) {	934	for (@$callbacks) {
667	eval { &{$_->[1]} };	935	eval { &{$_->[1]} };
…		…
684		952
685	Generate an object-specific event with the given arguments.	953	Generate an object-specific event with the given arguments.
686		954
687	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	955	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
688	removed in future versions), and there is no public API to access override	956	removed in future versions), and there is no public API to access override
689	results (if you must, access C<@cf::invoke_results> directly).	957	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
690		958
691	=back	959	=back
692		960
693	=cut	961	=cut
694		962
695	#############################################################################	963	#############################################################################
696	# object support	964	# object support
		965	#
		966
		967	sub _can_merge {
		968	my ($ob1, $ob2) = @_;
		969
		970	local $Storable::canonical = 1;
		971	my $fob1 = Storable::freeze $ob1;
		972	my $fob2 = Storable::freeze $ob2;
		973
		974	$fob1 eq $fob2
		975	}
697		976
698	sub reattach {	977	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	978	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	979	my ($obj) = @_;
		980
		981	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		982
702	my $registry = $obj->registry;	983	my $registry = $obj->registry;
703		984
704	@$registry = ();	985	@$registry = ();
705		986
…		…
744	);	1025	);
745		1026
746	sub object_freezer_save {	1027	sub object_freezer_save {
747	my ($filename, $rdata, $objs) = @_;	1028	my ($filename, $rdata, $objs) = @_;
748		1029
		1030	my $guard = cf::lock_acquire "io";
		1031
749	sync_job {	1032	sync_job {
750	if (length $$rdata) {	1033	if (length $$rdata) {
		1034	utf8::decode (my $decname = $filename);
751	warn sprintf "saving %s (%d,%d)\n",	1035	warn sprintf "saving %s (%d,%d)\n",
752	$filename, length $$rdata, scalar @$objs;	1036	$decname, length $$rdata, scalar @$objs;
753		1037
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1038	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	1039	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1040	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	1041	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	1042	close $fh;
759		1043
760	if (@$objs) {	1044	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1045	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	1046	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	1047	my $data = Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	1048	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	1049	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	1050	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	1051	aio_rename "$filename.pst~", "$filename.pst";
768	}	1052	}
769	} else {	1053	} else {
770	aio_unlink "$filename.pst";	1054	aio_unlink "$filename.pst";
…		…
776	}	1060	}
777	} else {	1061	} else {
778	aio_unlink $filename;	1062	aio_unlink $filename;
779	aio_unlink "$filename.pst";	1063	aio_unlink "$filename.pst";
780	}	1064	}
781	}	1065	};
		1066
		1067	undef $guard;
782	}	1068	}
783		1069
784	sub object_freezer_as_string {	1070	sub object_freezer_as_string {
785	my ($rdata, $objs) = @_;	1071	my ($rdata, $objs) = @_;
786		1072
…		…
791		1077
792	sub object_thawer_load {	1078	sub object_thawer_load {
793	my ($filename) = @_;	1079	my ($filename) = @_;
794		1080
795	my ($data, $av);	1081	my ($data, $av);
		1082
		1083	my $guard = cf::lock_acquire "io";
796		1084
797	(aio_load $filename, $data) >= 0	1085	(aio_load $filename, $data) >= 0
798	or return;	1086	or return;
799		1087
800	unless (aio_stat "$filename.pst") {	1088	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	1089	(aio_load "$filename.pst", $av) >= 0
802	or return;	1090	or return;
		1091
		1092	undef $guard;
803	$av = eval { (Storable::thaw <$av>)->{objs} };	1093	$av = eval { (Storable::thaw $av)->{objs} };
804	}	1094	}
805		1095
		1096	utf8::decode (my $decname = $filename);
		1097	warn sprintf "loading %s (%d,%d)\n",
		1098	$decname, length $data, scalar @{$av || []};
		1099
806	return ($data, $av);	1100	($data, $av)
807	}	1101	}
		1102
		1103	=head2 COMMAND CALLBACKS
		1104
		1105	=over 4
		1106
		1107	=cut
808		1108
809	#############################################################################	1109	#############################################################################
810	# command handling &c	1110	# command handling &c
811		1111
812	=item cf::register_command $name => \&callback($ob,$args);	1112	=item cf::register_command $name => \&callback($ob,$args);
…		…
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1125	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1126	}
827		1127
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1128	=item cf::register_extcmd $name => \&callback($pl,$packet);
829		1129
830	Register a callbackf ro execution when the client sends an extcmd packet.	1130	Register a callback for execution when the client sends an (synchronous)
		1131	extcmd packet. Ext commands will be processed in the order they are
		1132	received by the server, like other user commands. The first argument is
		1133	the logged-in player. Ext commands can only be processed after a player
		1134	has logged in successfully.
831		1135
832	If the callback returns something, it is sent back as if reply was being	1136	If the callback returns something, it is sent back as if reply was being
833	called.	1137	called.
834		1138
		1139	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1140
		1141	Register a callback for execution when the client sends an (asynchronous)
		1142	exticmd packet. Exti commands are processed by the server as soon as they
		1143	are received, i.e. out of order w.r.t. other commands. The first argument
		1144	is a client socket. Exti commands can be received anytime, even before
		1145	log-in.
		1146
		1147	If the callback returns something, it is sent back as if reply was being
		1148	called.
		1149
835	=cut	1150	=cut
836		1151
837	sub register_extcmd {	1152	sub register_extcmd {
838	my ($name, $cb) = @_;	1153	my ($name, $cb) = @_;
839		1154
840	my $caller = caller;
841	#warn "registering extcmd '$name' to '$caller'";
842
843	$EXTCMD{$name} = [$cb, $caller];	1155	$EXTCMD{$name} = $cb;
		1156	}
		1157
		1158	sub register_exticmd {
		1159	my ($name, $cb) = @_;
		1160
		1161	$EXTICMD{$name} = $cb;
844	}	1162	}
845		1163
846	cf::player->attach (	1164	cf::player->attach (
847	on_command => sub {	1165	on_command => sub {
848	my ($pl, $name, $params) = @_;	1166	my ($pl, $name, $params) = @_;
…		…
857	cf::override;	1175	cf::override;
858	},	1176	},
859	on_extcmd => sub {	1177	on_extcmd => sub {
860	my ($pl, $buf) = @_;	1178	my ($pl, $buf) = @_;
861		1179
862	my $msg = eval { from_json $buf };	1180	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
863		1181
864	if (ref $msg) {	1182	if (ref $msg) {
		1183	my ($type, $reply, @payload) =
		1184	"ARRAY" eq ref $msg
		1185	? @$msg
		1186	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1187
		1188	my @reply;
		1189
865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1190	if (my $cb = $EXTCMD{$type}) {
866	if (my %reply = $cb->[0]->($pl, $msg)) {	1191	@reply = $cb->($pl, @payload);
867	$pl->ext_reply ($msg->{msgid}, %reply);
868	}
869	}	1192	}
		1193
		1194	$pl->ext_reply ($reply, @reply)
		1195	if $reply;
		1196
870	} else {	1197	} else {
871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
872	}	1199	}
873		1200
874	cf::override;	1201	cf::override;
875	},	1202	},
876	);	1203	);
877		1204
878	sub register {
879	my ($base, $pkg) = @_;
880
881	#TODO
882	}
883
884	sub load_extension {	1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
		1209	for my $path (<$LIBDIR/*.ext>) {
		1210	next unless -r $path;
		1211
		1212	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1213	my $base = $1;
		1214	my $pkg = $1;
		1215	$pkg =~ s/[^[:word:]]/_/g;
		1216	$pkg = "ext::$pkg";
		1217
		1218	open my $fh, "<:utf8", $path
		1219	or die "$path: $!";
		1220
		1221	my $source = do { local $/; <$fh> };
		1222
		1223	my %ext = (
		1224	path => $path,
		1225	base => $base,
		1226	pkg => $pkg,
		1227	);
		1228
		1229	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1230	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1231
		1232	$ext{source} =
		1233	"package $pkg; use strict; use utf8;\n"
		1234	. "#line 1 \"$path\"\n{\n"
		1235	. $source
		1236	. "\n};\n1";
		1237
		1238	$todo{$base} = \%ext;
		1239	}
		1240
		1241	my %done;
		1242	while (%todo) {
		1243	my $progress;
		1244
		1245	while (my ($k, $v) = each %todo) {
		1246	for (split /,\s*/, $v->{meta}{depends}) {
		1247	goto skip
		1248	unless exists $done{$_};
		1249	}
		1250
		1251	warn "... loading '$k' into '$v->{pkg}'\n";
		1252
		1253	unless (eval $v->{source}) {
		1254	my $msg = $@ ? "$v->{path}: $@\n"
		1255	: "$v->{base}: extension inactive.\n";
		1256
		1257	if (exists $v->{meta}{mandatory}) {
		1258	warn $msg;
		1259	warn "mandatory extension failed to load, exiting.\n";
		1260	exit 1;
		1261	}
		1262
		1263	warn $msg;
		1264	}
		1265
		1266	$done{$k} = delete $todo{$k};
		1267	push @EXTS, $v->{pkg};
		1268	$progress = 1;
		1269	}
		1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
		1275	};
		1276	}
		1277
		1278	#############################################################################
		1279
		1280	=back
		1281
		1282	=head2 CORE EXTENSIONS
		1283
		1284	Functions and methods that extend core crossfire objects.
		1285
		1286	=cut
		1287
		1288	package cf::player;
		1289
		1290	use Coro::AIO;
		1291
		1292	=head3 cf::player
		1293
		1294	=over 4
		1295
		1296	=item cf::player::num_playing
		1297
		1298	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1299
		1300	=cut
		1301
		1302	sub num_playing {
		1303	scalar grep
		1304	$_->ob->map
		1305	&& !$_->hidden
		1306	&& !$_->ob->flag (cf::FLAG_WIZ),
		1307	cf::player::list
		1308	}
		1309
		1310	=item cf::player::find $login
		1311
		1312	Returns the given player object, loading it if necessary (might block).
		1313
		1314	=cut
		1315
		1316	sub playerdir($) {
		1317	"$PLAYERDIR/"
		1318	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1319	}
		1320
		1321	sub path($) {
		1322	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1323
		1324	(playerdir $login) . "/playerdata"
		1325	}
		1326
		1327	sub find_active($) {
		1328	$cf::PLAYER{$_[0]}
		1329	and $cf::PLAYER{$_[0]}->active
		1330	and $cf::PLAYER{$_[0]}
		1331	}
		1332
		1333	sub exists($) {
		1334	my ($login) = @_;
		1335
		1336	$cf::PLAYER{$login}
		1337	or cf::sync_job { !aio_stat path $login }
		1338	}
		1339
		1340	sub find($) {
		1341	return $cf::PLAYER{$_[0]} || do {
		1342	my $login = $_[0];
		1343
		1344	my $guard = cf::lock_acquire "user_find:$login";
		1345
		1346	$cf::PLAYER{$_[0]} || do {
		1347	# rename old playerfiles to new ones
		1348	#TODO: remove when no longer required
		1349	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1350	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1351	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1352	aio_unlink +(playerdir $login) . "/$login.pl";
		1353
		1354	my $f = new_from_file cf::object::thawer path $login
		1355	or return;
		1356
		1357	$f->next;
		1358	my $pl = cf::player::load_pl $f
		1359	or return;
		1360	local $cf::PLAYER_LOADING{$login} = $pl;
		1361	$f->resolve_delayed_derefs;
		1362	$cf::PLAYER{$login} = $pl
		1363	}
		1364	}
		1365	}
		1366
		1367	sub save($) {
		1368	my ($pl) = @_;
		1369
		1370	return if $pl->{deny_save};
		1371
		1372	my $path = path $pl;
		1373	my $guard = cf::lock_acquire "user_save:$path";
		1374
		1375	return if $pl->{deny_save};
		1376
		1377	aio_mkdir playerdir $pl, 0770;
		1378	$pl->{last_save} = $cf::RUNTIME;
		1379
		1380	$pl->save_pl ($path);
		1381	cf::cede_to_tick;
		1382	}
		1383
		1384	sub new($) {
		1385	my ($login) = @_;
		1386
		1387	my $self = create;
		1388
		1389	$self->ob->name ($login);
		1390	$self->{deny_save} = 1;
		1391
		1392	$cf::PLAYER{$login} = $self;
		1393
		1394	$self
		1395	}
		1396
		1397	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1398
		1399	=cut
		1400
		1401	sub send_msg {
		1402	my $ns = shift->ns
		1403	or return;
		1404	$ns->send_msg (@_);
		1405	}
		1406
		1407	=item $pl->quit_character
		1408
		1409	Nukes the player without looking back. If logged in, the connection will
		1410	be destroyed. May block for a long time.
		1411
		1412	=cut
		1413
		1414	sub quit_character {
		1415	my ($pl) = @_;
		1416
		1417	my $name = $pl->ob->name;
		1418
		1419	$pl->{deny_save} = 1;
		1420	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1421
		1422	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1423	$pl->deactivate;
		1424	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1425	$pl->ns->destroy if $pl->ns;
		1426
		1427	my $path = playerdir $pl;
		1428	my $temp = "$path~$cf::RUNTIME~deleting~";
		1429	aio_rename $path, $temp;
		1430	delete $cf::PLAYER{$pl->ob->name};
		1431	$pl->destroy;
		1432
		1433	my $prefix = qr<^~\Q$name\E/>;
		1434
		1435	# nuke player maps
		1436	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1437
		1438	IO::AIO::aio_rmtree $temp;
		1439	}
		1440
		1441	=item $pl->kick
		1442
		1443	Kicks a player out of the game. This destroys the connection.
		1444
		1445	=cut
		1446
		1447	sub kick {
		1448	my ($pl, $kicker) = @_;
		1449
		1450	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1451	$pl->killer ("kicked");
		1452	$pl->ns->destroy;
		1453	}
		1454
		1455	=item cf::player::list_logins
		1456
		1457	Returns am arrayref of all valid playernames in the system, can take a
		1458	while and may block, so not sync_job-capable, ever.
		1459
		1460	=cut
		1461
		1462	sub list_logins {
		1463	my $dirs = aio_readdir $PLAYERDIR
		1464	or return [];
		1465
		1466	my @logins;
		1467
		1468	for my $login (@$dirs) {
		1469	my $path = path $login;
		1470
		1471	# a .pst is a dead give-away for a valid player
		1472	unless (-e "$path.pst") {
		1473	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1474	aio_read $fh, 0, 512, my $buf, 0 or next;
		1475	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1476	}
		1477
		1478	utf8::decode $login;
		1479	push @logins, $login;
		1480	}
		1481
		1482	\@logins
		1483	}
		1484
		1485	=item $player->maps
		1486
		1487	Returns an arrayref of map paths that are private for this
		1488	player. May block.
		1489
		1490	=cut
		1491
		1492	sub maps($) {
		1493	my ($pl) = @_;
		1494
		1495	$pl = ref $pl ? $pl->ob->name : $pl;
		1496
		1497	my $files = aio_readdir playerdir $pl
		1498	or return;
		1499
		1500	my @paths;
		1501
		1502	for (@$files) {
		1503	utf8::decode $_;
		1504	next if /\.(?:pl|pst)$/;
		1505	next unless /^$PATH_SEP/o;
		1506
		1507	push @paths, cf::map::normalise "~$pl/$_";
		1508	}
		1509
		1510	\@paths
		1511	}
		1512
		1513	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1514
		1515	Expand crossfire pod fragments into protocol xml.
		1516
		1517	=cut
		1518
		1519	sub expand_cfpod {
		1520	((my $self), (local $_)) = @_;
		1521
		1522	# escape & and <
		1523	s/&/&amp;/g;
		1524	s/(?<![BIUGHT])</&lt;/g;
		1525
		1526	# this is buggy, it needs to properly take care of nested <'s
		1527
		1528	1 while
		1529	# replace B<>, I<>, U<> etc.
		1530	s/B<([^\>]*)>/<b>$1<\/b>/
		1531	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1532	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1533	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1534	# replace G<male|female> tags
		1535	|| s{G<([^>|]*)\|([^>]*)>}{
		1536	$self->gender ? $2 : $1
		1537	}ge
		1538	# replace H<hint text>
		1539	|| s{H<([^\>]*)>}
		1540	{
		1541	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1542	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1543	"")
		1544	[$self->{hintmode}]
		1545	}ge;
		1546
		1547	# create single paragraphs (very hackish)
		1548	s/(?<=\S)\n(?=\w)/ /g;
		1549
		1550	# compress some whitespace
		1551	s/\s+\n/\n/g; # ws line-ends
		1552	s/\n\n+/\n/g; # double lines
		1553	s/^\n+//; # beginning lines
		1554	s/\n+$//; # ending lines
		1555
		1556	$_
		1557	}
		1558
		1559	sub hintmode {
		1560	$_[0]{hintmode} = $_[1] if @_ > 1;
		1561	$_[0]{hintmode}
		1562	}
		1563
		1564	=item $player->ext_reply ($msgid, @msg)
		1565
		1566	Sends an ext reply to the player.
		1567
		1568	=cut
		1569
		1570	sub ext_reply($$@) {
		1571	my ($self, $id, @msg) = @_;
		1572
		1573	$self->ns->ext_reply ($id, @msg)
		1574	}
		1575
		1576	=item $player->ext_msg ($type, @msg)
		1577
		1578	Sends an ext event to the client.
		1579
		1580	=cut
		1581
		1582	sub ext_msg($$@) {
		1583	my ($self, $type, @msg) = @_;
		1584
		1585	$self->ns->ext_msg ($type, @msg);
		1586	}
		1587
		1588	=head3 cf::region
		1589
		1590	=over 4
		1591
		1592	=cut
		1593
		1594	package cf::region;
		1595
		1596	=item cf::region::find_by_path $path
		1597
		1598	Tries to decuce the likely region for a map knowing only its path.
		1599
		1600	=cut
		1601
		1602	sub find_by_path($) {
885	my ($path) = @_;	1603	my ($path) = @_;
886		1604
887	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1605	my ($match, $specificity);
888	my $base = $1;
889	my $pkg = $1;
890	$pkg =~ s/[^[:word:]]/_/g;
891	$pkg = "ext::$pkg";
892		1606
893	warn "loading '$path' into '$pkg'\n";	1607	for my $region (list) {
894		1608	if ($region->{match} && $path =~ $region->{match}) {
895	open my $fh, "<:utf8", $path	1609	($match, $specificity) = ($region, $region->specificity)
896	or die "$path: $!";	1610	if $region->specificity > $specificity;
897		1611	}
898	my $source =
899	"package $pkg; use strict; use utf8;\n"
900	. "#line 1 \"$path\"\n{\n"
901	. (do { local $/; <$fh> })
902	. "\n};\n1";
903
904	eval $source
905	or die $@ ? "$path: $@\n"
906	: "extension disabled.\n";
907
908	push @exts, $pkg;
909	$ext_pkg{$base} = $pkg;
910
911	# no strict 'refs';
912	# @{"$pkg\::ISA"} = ext::;
913
914	register $base, $pkg;
915	}
916
917	sub unload_extension {
918	my ($pkg) = @_;
919
920	warn "removing extension $pkg\n";
921
922	# remove hooks
923	#TODO
924	# for my $idx (0 .. $#PLUGIN_EVENT) {
925	# delete $hook[$idx]{$pkg};
926	# }	1612	}
927		1613
928	# remove commands	1614	$match
929	for my $name (keys %COMMAND) {
930	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
931
932	if (@cb) {
933	$COMMAND{$name} = \@cb;
934	} else {
935	delete $COMMAND{$name};
936	}
937	}
938
939	# remove extcmds
940	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
941	delete $EXTCMD{$name};
942	}
943
944	if (my $cb = $pkg->can ("unload")) {
945	eval {
946	$cb->($pkg);
947	1
948	} or warn "$pkg unloaded, but with errors: $@";
949	}
950
951	Symbol::delete_package $pkg;
952	}
953
954	sub load_extensions {
955	for my $ext (<$LIBDIR/*.ext>) {
956	next unless -r $ext;
957	eval {
958	load_extension $ext;
959	1
960	} or warn "$ext not loaded: $@";
961	}
962	}
963
964	#############################################################################
965	# load/save/clean perl data associated with a map
966
967	*cf::mapsupport::on_clean = sub {
968	my ($map) = @_;
969
970	my $path = $map->tmpname;
971	defined $path or return;
972
973	unlink "$path.pst";
974	};
975
976	cf::map->attach (prio => -10000, package => cf::mapsupport::);
977
978	#############################################################################
979	# load/save perl data associated with player->ob objects
980
981	sub all_objects(@) {
982	@_, map all_objects ($_->inv), @_
983	}
984
985	# TODO: compatibility cruft, remove when no longer needed
986	cf::player->attach (
987	on_load => sub {
988	my ($pl, $path) = @_;
989
990	for my $o (all_objects $pl->ob) {
991	if (my $value = $o->get_ob_key_value ("_perl_data")) {
992	$o->set_ob_key_value ("_perl_data");
993
994	%$o = %{ Storable::thaw pack "H*", $value };
995	}
996	}
997	},
998	);
999
1000	#############################################################################
1001
1002	=head2 CORE EXTENSIONS
1003
1004	Functions and methods that extend core crossfire objects.
1005
1006	=head3 cf::player
1007
1008	=over 4
1009
1010	=item cf::player::exists $login
1011
1012	Returns true when the given account exists.
1013
1014	=cut
1015
1016	sub cf::player::exists($) {
1017	cf::player::find $_[0]
1018	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1019	}
1020
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)
1022
1023	Sends an ext reply to the player.
1024
1025	=cut
1026
1027	sub cf::player::ext_reply($$$%) {
1028	my ($self, $id, %msg) = @_;
1029
1030	$msg{msgid} = $id;
1031
1032	$self->send ("ext " . to_json \%msg);
1033	}	1615	}
1034		1616
1035	=back	1617	=back
1036
1037		1618
1038	=head3 cf::map	1619	=head3 cf::map
1039		1620
1040	=over 4	1621	=over 4
1041		1622
…		…
1044	package cf::map;	1625	package cf::map;
1045		1626
1046	use Fcntl;	1627	use Fcntl;
1047	use Coro::AIO;	1628	use Coro::AIO;
1048		1629
		1630	use overload
		1631	'""' => \&as_string,
		1632	fallback => 1;
		1633
1049	our $MAX_RESET = 7200;	1634	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1635	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1636
1054	sub generate_random_map {	1637	sub generate_random_map {
1055	my ($path, $rmp) = @_;	1638	my ($self, $rmp) = @_;
1056
1057	# mit "rum" bekleckern, nicht	1639	# mit "rum" bekleckern, nicht
1058	cf::map::_create_random_map	1640	$self->_create_random_map (
1059	$path,
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1641	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1642	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1643	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},	1644	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},	1645	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1646	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1647	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1648	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1649	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1650	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(cf::region::find $rmp->{region})	1651	(cf::region::find $rmp->{region}), $rmp->{custom}
		1652	)
		1653	}
		1654
		1655	=item cf::map->register ($regex, $prio)
		1656
		1657	Register a handler for the map path matching the given regex at the
		1658	givne priority (higher is better, built-in handlers have priority 0, the
		1659	default).
		1660
		1661	=cut
		1662
		1663	sub register {
		1664	my (undef, $regex, $prio) = @_;
		1665	my $pkg = caller;
		1666
		1667	no strict;
		1668	push @{"$pkg\::ISA"}, __PACKAGE__;
		1669
		1670	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1671	}
		1672
		1673	# also paths starting with '/'
		1674	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1675
		1676	sub thawer_merge {
		1677	my ($self, $merge) = @_;
		1678
		1679	# we have to keep some variables in memory intact
		1680	local $self->{path};
		1681	local $self->{load_path};
		1682
		1683	$self->SUPER::thawer_merge ($merge);
		1684	}
		1685
		1686	sub normalise {
		1687	my ($path, $base) = @_;
		1688
		1689	$path = "$path"; # make sure its a string
		1690
		1691	$path =~ s/\.map$//;
		1692
		1693	# map plan:
		1694	#
		1695	# /! non-realised random map exit (special hack!)
		1696	# {... are special paths that are not being touched
		1697	# ?xxx/... are special absolute paths
		1698	# ?random/... random maps
		1699	# /... normal maps
		1700	# ~user/... per-player map of a specific user
		1701
		1702	$path =~ s/$PATH_SEP/\//go;
		1703
		1704	# treat it as relative path if it starts with
		1705	# something that looks reasonable
		1706	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1707	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1708
		1709	$base =~ s{[^/]+/?$}{};
		1710	$path = "$base/$path";
		1711	}
		1712
		1713	for ($path) {
		1714	redo if s{//}{/};
		1715	redo if s{/\.?/}{/};
		1716	redo if s{/[^/]+/\.\./}{/};
		1717	}
		1718
		1719	$path
		1720	}
		1721
		1722	sub new_from_path {
		1723	my (undef, $path, $base) = @_;
		1724
		1725	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1726
		1727	$path = normalise $path, $base;
		1728
		1729	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1730	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1731	my $self = bless cf::map::new, $pkg;
		1732	$self->{path} = $path; $self->path ($path);
		1733	$self->init; # pass $1 etc.
		1734	return $self;
		1735	}
		1736	}
		1737
		1738	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1739	()
		1740	}
		1741
		1742	sub init {
		1743	my ($self) = @_;
		1744
		1745	$self
		1746	}
		1747
		1748	sub as_string {
		1749	my ($self) = @_;
		1750
		1751	"$self->{path}"
		1752	}
		1753
		1754	# the displayed name, this is a one way mapping
		1755	sub visible_name {
		1756	&as_string
		1757	}
		1758
		1759	# the original (read-only) location
		1760	sub load_path {
		1761	my ($self) = @_;
		1762
		1763	"$MAPDIR/$self->{path}.map"
		1764	}
		1765
		1766	# the temporary/swap location
		1767	sub save_path {
		1768	my ($self) = @_;
		1769
		1770	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1771	"$TMPDIR/$path.map"
		1772	}
		1773
		1774	# the unique path, undef == no special unique path
		1775	sub uniq_path {
		1776	my ($self) = @_;
		1777
		1778	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1779	"$UNIQUEDIR/$path"
1071	}	1780	}
1072		1781
1073	# and all this just because we cannot iterate over	1782	# and all this just because we cannot iterate over
1074	# all maps in C++...	1783	# all maps in C++...
1075	sub change_all_map_light {	1784	sub change_all_map_light {
1076	my ($change) = @_;	1785	my ($change) = @_;
1077		1786
1078	$_->change_map_light ($change) for values %cf::MAP;	1787	$_->change_map_light ($change)
		1788	for grep $_->outdoor, values %cf::MAP;
1079	}	1789	}
1080		1790
		1791	sub decay_objects {
		1792	my ($self) = @_;
		1793
		1794	return if $self->{deny_reset};
		1795
		1796	$self->do_decay_objects;
		1797	}
		1798
		1799	sub unlink_save {
		1800	my ($self) = @_;
		1801
		1802	utf8::encode (my $save = $self->save_path);
		1803	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1804	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1805	}
		1806
1081	sub try_load_header($) {	1807	sub load_header_from($) {
1082	my ($path) = @_;	1808	my ($self, $path) = @_;
1083		1809
1084	utf8::encode $path;	1810	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	1811	my $f = new_from_file cf::object::thawer $path
1086	or return;	1812	or return;
1087		1813
1088	my $map = cf::map::new	1814	$self->_load_header ($f)
1089	or return;	1815	or return;
1090		1816
1091	$map->load_header ($path)	1817	local $MAP_LOADING{$self->{path}} = $self;
		1818	$f->resolve_delayed_derefs;
		1819
		1820	$self->{load_path} = $path;
		1821
		1822	1
		1823	}
		1824
		1825	sub load_header_orig {
		1826	my ($self) = @_;
		1827
		1828	$self->load_header_from ($self->load_path)
		1829	}
		1830
		1831	sub load_header_temp {
		1832	my ($self) = @_;
		1833
		1834	$self->load_header_from ($self->save_path)
		1835	}
		1836
		1837	sub prepare_temp {
		1838	my ($self) = @_;
		1839
		1840	$self->last_access ((delete $self->{last_access})
		1841	|| $cf::RUNTIME); #d#
		1842	# safety
		1843	$self->{instantiate_time} = $cf::RUNTIME
		1844	if $self->{instantiate_time} > $cf::RUNTIME;
		1845	}
		1846
		1847	sub prepare_orig {
		1848	my ($self) = @_;
		1849
		1850	$self->{load_original} = 1;
		1851	$self->{instantiate_time} = $cf::RUNTIME;
		1852	$self->last_access ($cf::RUNTIME);
		1853	$self->instantiate;
		1854	}
		1855
		1856	sub load_header {
		1857	my ($self) = @_;
		1858
		1859	if ($self->load_header_temp) {
		1860	$self->prepare_temp;
		1861	} else {
		1862	$self->load_header_orig
1092	or return;	1863	or return;
		1864	$self->prepare_orig;
		1865	}
1093		1866
1094	$map->{load_path} = $path;	1867	$self->{deny_reset} = 1
1095	use Data::Dumper; warn Dumper $map;#d#	1868	if $self->no_reset;
1096		1869
1097	$map	1870	$self->default_region (cf::region::find_by_path $self->{path})
1098	}	1871	unless $self->default_region;
1099		1872
		1873	1
		1874	}
		1875
		1876	sub find;
1100	sub find_map {	1877	sub find {
1101	my ($path, $origin) = @_;	1878	my ($path, $origin) = @_;
1102		1879
1103	#warn "find_map<$path,$origin>\n";#d#	1880	$path = normalise $path, $origin && $origin->path;
1104		1881
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	1882	cf::lock_wait "map_data:$path";#d#remove
1106	my $key = $path->as_string;	1883	cf::lock_wait "map_find:$path";
1107		1884
1108	$cf::MAP{$key} || do {	1885	$cf::MAP{$path} || do {
1109	# do it the slow way	1886	my $guard1 = cf::lock_acquire "map_find:$path";
1110	my $map = try_load_header $path->save_path;	1887	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1111		1888
1112	if ($map) {	1889	my $map = new_from_path cf::map $path
1113	# safety
1114	$map->{instantiate_time} = $cf::RUNTIME
1115	if $map->{instantiate_time} > $cf::RUNTIME;
1116	} else {
1117	if (my $rmp = $path->random_map_params) {
1118	$map = generate_random_map $key, $rmp;
1119	} else {
1120	$map = try_load_header $path->load_path;
1121	}
1122
1123	$map or return;	1890	or return;
1124		1891
1125	$map->{load_original} = 1;
1126	$map->{instantiate_time} = $cf::RUNTIME;
1127	$map->instantiate;
1128
1129	# per-player maps become, after loading, normal maps
1130	$map->per_player (0) if $path->{user_rel};
1131	}
1132
1133	$map->path ($key);
1134	$map->{path} = $path;
1135	$map->last_access ($cf::RUNTIME);	1892	$map->{last_save} = $cf::RUNTIME;
1136		1893
1137	$map->reset if $map->should_reset;	1894	$map->load_header
		1895	or return;
1138		1896
		1897	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1898	# doing this can freeze the server in a sync job, obviously
		1899	#$cf::WAIT_FOR_TICK->wait;
		1900	undef $guard1;
		1901	undef $guard2;
		1902	$map->reset;
		1903	return find $path;
		1904	}
		1905
1139	$cf::MAP{$key} = $map	1906	$cf::MAP{$path} = $map
1140	}	1907	}
1141	}	1908	}
		1909
		1910	sub pre_load { }
		1911	sub post_load { }
1142		1912
1143	sub load {	1913	sub load {
1144	my ($self) = @_;	1914	my ($self) = @_;
1145		1915
1146	return if $self->in_memory != cf::MAP_SWAPPED;	1916	local $self->{deny_reset} = 1; # loading can take a long time
1147
1148	$self->in_memory (cf::MAP_LOADING);
1149		1917
1150	my $path = $self->{path};	1918	my $path = $self->{path};
1151		1919
		1920	{
		1921	my $guard = cf::lock_acquire "map_data:$path";
		1922
		1923	return unless $self->valid;
		1924	return unless $self->in_memory == cf::MAP_SWAPPED;
		1925
		1926	$self->in_memory (cf::MAP_LOADING);
		1927
1152	$self->alloc;	1928	$self->alloc;
1153	$self->load_objects ($self->{load_path}, 1)	1929
		1930	$self->pre_load;
		1931	cf::cede_to_tick;
		1932
		1933	my $f = new_from_file cf::object::thawer $self->{load_path};
		1934	$f->skip_block;
		1935	$self->_load_objects ($f)
1154	or return;	1936	or return;
1155		1937
1156	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) if delete $self->{load_original};	1938	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1939	if delete $self->{load_original};
1157		1940
1158	if (my $uniq = $path->uniq_path) {	1941	if (my $uniq = $self->uniq_path) {
1159	utf8::encode $uniq;	1942	utf8::encode $uniq;
1160	if (aio_open $uniq, O_RDONLY, 0) {	1943	unless (aio_stat $uniq) {
		1944	if (my $f = new_from_file cf::object::thawer $uniq) {
1161	$self->clear_unique_items;	1945	$self->clear_unique_items;
1162	$self->load_objects ($uniq, 0);	1946	$self->_load_objects ($f);
		1947	$f->resolve_delayed_derefs;
		1948	}
1163	}	1949	}
1164	}	1950	}
1165		1951
		1952	$f->resolve_delayed_derefs;
		1953
		1954	cf::cede_to_tick;
1166	# now do the right thing for maps	1955	# now do the right thing for maps
1167	$self->link_multipart_objects;	1956	$self->link_multipart_objects;
1168
1169	if ($self->{path}->is_style_map) {
1170	$self->{deny_save} = 1;
1171	$self->{deny_reset} = 1;
1172	} else {
1173	$self->fix_auto_apply;
1174	$self->decay_objects;
1175	$self->update_buttons;
1176	$self->set_darkness_map;
1177	$self->difficulty ($self->estimate_difficulty)	1957	$self->difficulty ($self->estimate_difficulty)
1178	unless $self->difficulty;	1958	unless $self->difficulty;
		1959	cf::cede_to_tick;
		1960
		1961	unless ($self->{deny_activate}) {
		1962	$self->decay_objects;
		1963	$self->fix_auto_apply;
		1964	$self->update_buttons;
		1965	cf::cede_to_tick;
		1966	$self->set_darkness_map;
		1967	cf::cede_to_tick;
1179	$self->activate;	1968	$self->activate;
1180	}	1969	}
1181		1970
		1971	$self->{last_save} = $cf::RUNTIME;
		1972	$self->last_access ($cf::RUNTIME);
		1973
1182	$self->in_memory (cf::MAP_IN_MEMORY);	1974	$self->in_memory (cf::MAP_IN_MEMORY);
1183	}	1975	}
1184		1976
1185	sub load_map_sync {	1977	$self->post_load;
		1978	}
		1979
		1980	sub customise_for {
		1981	my ($self, $ob) = @_;
		1982
		1983	return find "~" . $ob->name . "/" . $self->{path}
		1984	if $self->per_player;
		1985
		1986	# return find "?party/" . $ob->name . "/" . $self->{path}
		1987	# if $self->per_party;
		1988
		1989	$self
		1990	}
		1991
		1992	# find and load all maps in the 3x3 area around a map
		1993	sub load_neighbours {
		1994	my ($map) = @_;
		1995
		1996	my @neigh; # diagonal neighbours
		1997
		1998	for (0 .. 3) {
		1999	my $neigh = $map->tile_path ($_)
		2000	or next;
		2001	$neigh = find $neigh, $map
		2002	or next;
		2003	$neigh->load;
		2004
		2005	push @neigh,
		2006	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2007	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2008	}
		2009
		2010	for (grep defined $_->[0], @neigh) {
		2011	my ($path, $origin) = @$_;
		2012	my $neigh = find $path, $origin
		2013	or next;
		2014	$neigh->load;
		2015	}
		2016	}
		2017
		2018	sub find_sync {
1186	my ($path, $origin) = @_;	2019	my ($path, $origin) = @_;
1187		2020
1188	#warn "load_map_sync<$path, $origin>\n";#d#	2021	cf::sync_job { find $path, $origin }
		2022	}
1189		2023
1190	cf::sync_job {	2024	sub do_load_sync {
1191	my $map = cf::map::find_map $path, $origin	2025	my ($map) = @_;
1192	or return;	2026
1193	$map->load;	2027	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1194	$map	2028	if $Coro::current == $Coro::main;
		2029
		2030	cf::sync_job { $map->load };
		2031	}
		2032
		2033	our %MAP_PREFETCH;
		2034	our $MAP_PREFETCHER = undef;
		2035
		2036	sub find_async {
		2037	my ($path, $origin, $load) = @_;
		2038
		2039	$path = normalise $path, $origin && $origin->{path};
		2040
		2041	if (my $map = $cf::MAP{$path}) {
		2042	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2043	}
		2044
		2045	$MAP_PREFETCH{$path} |= $load;
		2046
		2047	$MAP_PREFETCHER ||= cf::async {
		2048	while (%MAP_PREFETCH) {
		2049	while (my ($k, $v) = each %MAP_PREFETCH) {
		2050	if (my $map = find $k) {
		2051	$map->load if $v;
		2052	}
		2053
		2054	delete $MAP_PREFETCH{$k};
		2055	}
		2056	}
		2057	undef $MAP_PREFETCHER;
1195	}	2058	};
		2059	$MAP_PREFETCHER->prio (6);
		2060
		2061	()
1196	}	2062	}
1197		2063
1198	sub save {	2064	sub save {
1199	my ($self) = @_;	2065	my ($self) = @_;
1200		2066
1201	my $save = $self->{path}->save_path; utf8::encode $save;	2067	my $lock = cf::lock_acquire "map_data:$self->{path}";
1202	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1203		2068
1204	$self->{last_save} = $cf::RUNTIME;	2069	$self->{last_save} = $cf::RUNTIME;
1205		2070
1206	return unless $self->dirty;	2071	return unless $self->dirty;
1207		2072
		2073	my $save = $self->save_path; utf8::encode $save;
		2074	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2075
1208	$self->{load_path} = $save;	2076	$self->{load_path} = $save;
1209		2077
1210	return if $self->{deny_save};	2078	return if $self->{deny_save};
1211		2079
1212	warn "saving map ", $self->path;	2080	local $self->{last_access} = $self->last_access;#d#
		2081
		2082	cf::async {
		2083	$_->contr->save for $self->players;
		2084	};
1213		2085
1214	if ($uniq) {	2086	if ($uniq) {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2087	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1216	$self->save_objects ($uniq, cf::IO_UNIQUES);	2088	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1217	} else {	2089	} else {
1218	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2090	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1219	}	2091	}
1220	}	2092	}
1221		2093
1222	sub swap_out {	2094	sub swap_out {
1223	my ($self) = @_;	2095	my ($self) = @_;
		2096
		2097	# save first because save cedes
		2098	$self->save;
		2099
		2100	my $lock = cf::lock_acquire "map_data:$self->{path}";
1224		2101
1225	return if $self->players;	2102	return if $self->players;
1226	return if $self->in_memory != cf::MAP_IN_MEMORY;	2103	return if $self->in_memory != cf::MAP_IN_MEMORY;
1227	return if $self->{deny_save};	2104	return if $self->{deny_save};
1228		2105
		2106	$self->in_memory (cf::MAP_SWAPPED);
		2107
1229	$self->save;	2108	$self->deactivate;
		2109	$_->clear_links_to ($self) for values %cf::MAP;
1230	$self->clear;	2110	$self->clear;
1231	$self->in_memory (cf::MAP_SWAPPED);	2111	}
		2112
		2113	sub reset_at {
		2114	my ($self) = @_;
		2115
		2116	# TODO: safety, remove and allow resettable per-player maps
		2117	return 1e99 if $self->{deny_reset};
		2118
		2119	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2120	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2121
		2122	$time + $to
1232	}	2123	}
1233		2124
1234	sub should_reset {	2125	sub should_reset {
1235	my ($map) = @_;
1236
1237	# TODO: safety, remove and allow resettable per-player maps
1238	return if $map->{path}{user_rel};#d#
1239	return if $map->{deny_reset};
1240	#return unless $map->reset_timeout;
1241
1242	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1243	my $to = $map->reset_timeout || $DEFAULT_RESET;
1244	$to = $MAX_RESET if $to > $MAX_RESET;
1245
1246	$time + $to < $cf::RUNTIME
1247	}
1248
1249	sub unlink_save {
1250	my ($self) = @_;	2126	my ($self) = @_;
1251		2127
1252	utf8::encode (my $save = $self->{path}->save_path);	2128	$self->reset_at <= $cf::RUNTIME
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1255	}	2129	}
1256		2130
1257	sub reset {	2131	sub reset {
1258	my ($self) = @_;	2132	my ($self) = @_;
1259		2133
		2134	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2135
1260	return if $self->players;	2136	return if $self->players;
1261	return if $self->{path}{user_rel};#d#
1262		2137
1263	warn "resetting map ", $self->path;#d#	2138	warn "resetting map ", $self->path;
		2139
		2140	$self->in_memory (cf::MAP_SWAPPED);
		2141
		2142	# need to save uniques path
		2143	unless ($self->{deny_save}) {
		2144	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2145
		2146	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2147	if $uniq;
		2148	}
1264		2149
1265	delete $cf::MAP{$self->path};	2150	delete $cf::MAP{$self->path};
1266		2151
		2152	$self->deactivate;
1267	$_->clear_links_to ($self) for values %cf::MAP;	2153	$_->clear_links_to ($self) for values %cf::MAP;
		2154	$self->clear;
1268		2155
1269	$self->unlink_save;	2156	$self->unlink_save;
1270	$self->destroy;	2157	$self->destroy;
1271	}	2158	}
1272		2159
1273	sub customise_for {	2160	my $nuke_counter = "aaaa";
1274	my ($map, $ob) = @_;
1275		2161
1276	if ($map->per_player) {	2162	sub nuke {
1277	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2163	my ($self) = @_;
		2164
1278	}	2165	{
		2166	my $lock = cf::lock_acquire "map_data:$self->{path}";
1279		2167
1280	$map	2168	delete $cf::MAP{$self->path};
1281	}
1282		2169
1283	sub emergency_save {	2170	$self->unlink_save;
1284	local $cf::FREEZE = 1;
1285		2171
1286	warn "enter emergency map save\n";	2172	bless $self, "cf::map";
		2173	delete $self->{deny_reset};
		2174	$self->{deny_save} = 1;
		2175	$self->reset_timeout (1);
		2176	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1287		2177
1288	cf::sync_job {	2178	$cf::MAP{$self->path} = $self;
1289	warn "begin emergency map save\n";
1290	$_->save for values %cf::MAP;
1291	};	2179	}
1292		2180
1293	warn "end emergency map save\n";	2181	$self->reset; # polite request, might not happen
		2182	}
		2183
		2184	=item $maps = cf::map::tmp_maps
		2185
		2186	Returns an arrayref with all map paths of currently instantiated and saved
		2187	maps. May block.
		2188
		2189	=cut
		2190
		2191	sub tmp_maps() {
		2192	[
		2193	map {
		2194	utf8::decode $_;
		2195	/\.map$/
		2196	? normalise $_
		2197	: ()
		2198	} @{ aio_readdir $TMPDIR or [] }
		2199	]
		2200	}
		2201
		2202	=item $maps = cf::map::random_maps
		2203
		2204	Returns an arrayref with all map paths of currently instantiated and saved
		2205	random maps. May block.
		2206
		2207	=cut
		2208
		2209	sub random_maps() {
		2210	[
		2211	map {
		2212	utf8::decode $_;
		2213	/\.map$/
		2214	? normalise "?random/$_"
		2215	: ()
		2216	} @{ aio_readdir $RANDOMDIR or [] }
		2217	]
		2218	}
		2219
		2220	=item cf::map::unique_maps
		2221
		2222	Returns an arrayref of paths of all shared maps that have
		2223	instantiated unique items. May block.
		2224
		2225	=cut
		2226
		2227	sub unique_maps() {
		2228	[
		2229	map {
		2230	utf8::decode $_;
		2231	/\.map$/
		2232	? normalise $_
		2233	: ()
		2234	} @{ aio_readdir $UNIQUEDIR or [] }
		2235	]
1294	}	2236	}
1295		2237
1296	package cf;	2238	package cf;
1297		2239
1298	=back	2240	=back
1299		2241
		2242	=head3 cf::object
		2243
		2244	=cut
		2245
		2246	package cf::object;
		2247
		2248	=over 4
		2249
		2250	=item $ob->inv_recursive
		2251
		2252	Returns the inventory of the object _and_ their inventories, recursively.
		2253
		2254	=cut
		2255
		2256	sub inv_recursive_;
		2257	sub inv_recursive_ {
		2258	map { $_, inv_recursive_ $_->inv } @_
		2259	}
		2260
		2261	sub inv_recursive {
		2262	inv_recursive_ inv $_[0]
		2263	}
		2264
		2265	=item $ref = $ob->ref
		2266
		2267	creates and returns a persistent reference to an objetc that can be stored as a string.
		2268
		2269	=item $ob = cf::object::deref ($refstring)
		2270
		2271	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2272	even if the object actually exists. May block.
		2273
		2274	=cut
		2275
		2276	sub deref {
		2277	my ($ref) = @_;
		2278
		2279	# temporary compatibility#TODO#remove
		2280	$ref =~ s{^<}{player/<};
		2281
		2282	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2283	my ($uuid, $name) = ($1, $2);
		2284	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2285	or return;
		2286	$pl->ob->uuid eq $uuid
		2287	or return;
		2288
		2289	$pl->ob
		2290	} else {
		2291	warn "$ref: cannot resolve object reference\n";
		2292	undef
		2293	}
		2294	}
		2295
		2296	package cf;
		2297
		2298	=back
1300		2299
1301	=head3 cf::object::player	2300	=head3 cf::object::player
1302		2301
1303	=over 4	2302	=over 4
1304		2303
…		…
1318		2317
1319	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2318	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1320		2319
1321	if ($self->{record_replies}) {	2320	if ($self->{record_replies}) {
1322	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2321	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2322
1323	} else {	2323	} else {
		2324	my $pl = $self->contr;
		2325
		2326	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2327	my $dialog = $pl->{npc_dialog};
		2328	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2329
		2330	} else {
1324	$msg = $npc->name . " says: $msg" if $npc;	2331	$msg = $npc->name . " says: $msg" if $npc;
1325	$self->message ($msg, $flags);	2332	$self->message ($msg, $flags);
		2333	}
1326	}	2334	}
		2335	}
		2336
		2337	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2338
		2339	=cut
		2340
		2341	sub cf::object::send_msg {
		2342	my $pl = shift->contr
		2343	or return;
		2344	$pl->send_msg (@_);
1327	}	2345	}
1328		2346
1329	=item $player_object->may ("access")	2347	=item $player_object->may ("access")
1330		2348
1331	Returns wether the given player is authorized to access resource "access"	2349	Returns wether the given player is authorized to access resource "access"
…		…
1340	(ref $cf::CFG{"may_$access"}	2358	(ref $cf::CFG{"may_$access"}
1341	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2359	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1342	: $cf::CFG{"may_$access"})	2360	: $cf::CFG{"may_$access"})
1343	}	2361	}
1344		2362
		2363	=item $player_object->enter_link
		2364
		2365	Freezes the player and moves him/her to a special map (C<{link}>).
		2366
		2367	The player should be reasonably safe there for short amounts of time. You
		2368	I<MUST> call C<leave_link> as soon as possible, though.
		2369
		2370	Will never block.
		2371
		2372	=item $player_object->leave_link ($map, $x, $y)
		2373
		2374	Moves the player out of the special C<{link}> map onto the specified
		2375	map. If the map is not valid (or omitted), the player will be moved back
		2376	to the location he/she was before the call to C<enter_link>, or, if that
		2377	fails, to the emergency map position.
		2378
		2379	Might block.
		2380
		2381	=cut
		2382
		2383	sub link_map {
		2384	unless ($LINK_MAP) {
		2385	$LINK_MAP = cf::map::find "{link}"
		2386	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2387	$LINK_MAP->load;
		2388	}
		2389
		2390	$LINK_MAP
		2391	}
		2392
1345	sub cf::object::player::enter_link {	2393	sub cf::object::player::enter_link {
1346	my ($self) = @_;	2394	my ($self) = @_;
1347		2395
1348	return if $self->map == $LINK_MAP;
1349
1350	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1351	if $self->map;
1352
1353	$self->enter_map ($LINK_MAP, 20, 20);
1354	$self->deactivate_recursive;	2396	$self->deactivate_recursive;
		2397
		2398	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2399
		2400	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2401	if $self->map && $self->map->{path} ne "{link}";
		2402
		2403	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1355	}	2404	}
1356		2405
1357	sub cf::object::player::leave_link {	2406	sub cf::object::player::leave_link {
1358	my ($self, $map, $x, $y) = @_;	2407	my ($self, $map, $x, $y) = @_;
1359		2408
		2409	return unless $self->contr->active;
		2410
1360	my $link_pos = delete $self->{_link_pos};	2411	my $link_pos = delete $self->{_link_pos};
1361		2412
1362	unless ($map) {	2413	unless ($map) {
1363	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1364
1365	# restore original map position	2414	# restore original map position
1366	($map, $x, $y) = @{ $link_pos || [] };	2415	($map, $x, $y) = @{ $link_pos || [] };
1367	$map = cf::map::find_map $map;	2416	$map = cf::map::find $map;
1368		2417
1369	unless ($map) {	2418	unless ($map) {
1370	($map, $x, $y) = @$EMERGENCY_POSITION;	2419	($map, $x, $y) = @$EMERGENCY_POSITION;
1371	$map = cf::map::find_map $map	2420	$map = cf::map::find $map
1372	or die "FATAL: cannot load emergency map\n";	2421	or die "FATAL: cannot load emergency map\n";
1373	}	2422	}
1374	}	2423	}
1375		2424
1376	($x, $y) = (-1, -1)	2425	($x, $y) = (-1, -1)
…		…
1379	# use -1 or undef as default coordinates, not 0, 0	2428	# use -1 or undef as default coordinates, not 0, 0
1380	($x, $y) = ($map->enter_x, $map->enter_y)	2429	($x, $y) = ($map->enter_x, $map->enter_y)
1381	if $x <=0 && $y <= 0;	2430	if $x <=0 && $y <= 0;
1382		2431
1383	$map->load;	2432	$map->load;
		2433	$map->load_neighbours;
1384		2434
		2435	return unless $self->contr->active;
1385	$self->activate_recursive;	2436	$self->activate_recursive;
		2437
		2438	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1386	$self->enter_map ($map, $x, $y);	2439	$self->enter_map ($map, $x, $y);
1387	}	2440	}
1388		2441
1389	=item $player_object->goto_map ($map, $x, $y)	2442	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1390		2443
1391	=cut	2444	Moves the player to the given map-path and coordinates by first freezing
		2445	her, loading and preparing them map, calling the provided $check callback
		2446	that has to return the map if sucecssful, and then unfreezes the player on
		2447	the new (success) or old (failed) map position. In either case, $done will
		2448	be called at the end of this process.
1392		2449
		2450	=cut
		2451
		2452	our $GOTOGEN;
		2453
1393	sub cf::object::player::goto_map {	2454	sub cf::object::player::goto {
1394	my ($self, $path, $x, $y) = @_;	2455	my ($self, $path, $x, $y, $check, $done) = @_;
		2456
		2457	# do generation counting so two concurrent goto's will be executed in-order
		2458	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1395		2459
1396	$self->enter_link;	2460	$self->enter_link;
1397		2461
1398	(Coro::async {	2462	(async {
1399	$path = new cf::path $path;	2463	# *tag paths override both path and x|y
		2464	if ($path =~ /^\*(.*)$/) {
		2465	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2466	my $ob = $obs[rand @obs];
		2467	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2468	}
		2469	}
1400		2470
		2471	my $map = eval {
1401	my $map = cf::map::find_map $path->as_string;	2472	my $map = cf::map::find $path;
		2473
		2474	if ($map) {
1402	$map = $map->customise_for ($self) if $map;	2475	$map = $map->customise_for ($self);
		2476	$map = $check->($map) if $check && $map;
		2477	} else {
		2478	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2479	}
1403		2480
1404	warn "entering ", $map->path, " at ($x, $y)\n"
1405	if $map;	2481	$map
		2482	};
1406		2483
		2484	if ($@) {
		2485	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2486	LOG llevError | logBacktrace, Carp::longmess $@;
		2487	}
		2488
		2489	if ($gen == $self->{_goto_generation}) {
		2490	delete $self->{_goto_generation};
1407	$self->leave_link ($map, $x, $y);	2491	$self->leave_link ($map, $x, $y);
		2492	}
		2493
		2494	$done->() if $done;
1408	})->prio (1);	2495	})->prio (1);
1409	}	2496	}
1410		2497
1411	=item $player_object->enter_exit ($exit_object)	2498	=item $player_object->enter_exit ($exit_object)
1412		2499
…		…
1414		2501
1415	sub parse_random_map_params {	2502	sub parse_random_map_params {
1416	my ($spec) = @_;	2503	my ($spec) = @_;
1417		2504
1418	my $rmp = { # defaults	2505	my $rmp = { # defaults
1419	xsize => 10,	2506	xsize => (cf::rndm 15, 40),
1420	ysize => 10,	2507	ysize => (cf::rndm 15, 40),
		2508	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2509	#layout => string,
1421	};	2510	};
1422		2511
1423	for (split /\n/, $spec) {	2512	for (split /\n/, $spec) {
1424	my ($k, $v) = split /\s+/, $_, 2;	2513	my ($k, $v) = split /\s+/, $_, 2;
1425		2514
…		…
1429	$rmp	2518	$rmp
1430	}	2519	}
1431		2520
1432	sub prepare_random_map {	2521	sub prepare_random_map {
1433	my ($exit) = @_;	2522	my ($exit) = @_;
		2523
		2524	my $guard = cf::lock_acquire "exit_prepare:$exit";
1434		2525
1435	# all this does is basically replace the /! path by	2526	# all this does is basically replace the /! path by
1436	# a new random map path (?random/...) with a seed	2527	# a new random map path (?random/...) with a seed
1437	# that depends on the exit object	2528	# that depends on the exit object
1438		2529
1439	my $rmp = parse_random_map_params $exit->msg;	2530	my $rmp = parse_random_map_params $exit->msg;
1440		2531
1441	if ($exit->map) {	2532	if ($exit->map) {
1442	$rmp->{region} = $exit->map->region_name;	2533	$rmp->{region} = $exit->region->name;
1443	$rmp->{origin_map} = $exit->map->path;	2534	$rmp->{origin_map} = $exit->map->path;
1444	$rmp->{origin_x} = $exit->x;	2535	$rmp->{origin_x} = $exit->x;
1445	$rmp->{origin_y} = $exit->y;	2536	$rmp->{origin_y} = $exit->y;
1446	}	2537	}
1447		2538
1448	$rmp->{random_seed} ||= $exit->random_seed;	2539	$rmp->{random_seed} ||= $exit->random_seed;
1449		2540
1450	my $data = cf::to_json $rmp;	2541	my $data = cf::to_json $rmp;
1451	my $md5 = Digest::MD5::md5_hex $data;	2542	my $md5 = Digest::MD5::md5_hex $data;
		2543	my $meta = "$RANDOMDIR/$md5.meta";
1452		2544
1453	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2545	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1454	aio_write $fh, 0, (length $data), $data, 0;	2546	aio_write $fh, 0, (length $data), $data, 0;
		2547	undef $fh;
		2548	aio_rename "$meta~", $meta;
1455		2549
1456	$exit->slaying ("?random/$md5");	2550	$exit->slaying ("?random/$md5");
1457	$exit->msg (undef);	2551	$exit->msg (undef);
1458	}	2552	}
1459	}	2553	}
…		…
1461	sub cf::object::player::enter_exit {	2555	sub cf::object::player::enter_exit {
1462	my ($self, $exit) = @_;	2556	my ($self, $exit) = @_;
1463		2557
1464	return unless $self->type == cf::PLAYER;	2558	return unless $self->type == cf::PLAYER;
1465		2559
		2560	if ($exit->slaying eq "/!") {
		2561	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2562	# the problem is that $exit might not survive long enough
		2563	# so it needs to be done right now, right here
		2564	cf::sync_job { prepare_random_map $exit };
		2565	}
		2566
		2567	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2568	my $hp = $exit->stats->hp;
		2569	my $sp = $exit->stats->sp;
		2570
1466	$self->enter_link;	2571	$self->enter_link;
1467		2572
		2573	# if exit is damned, update players death & WoR home-position
		2574	$self->contr->savebed ($slaying, $hp, $sp)
		2575	if $exit->flag (FLAG_DAMNED);
		2576
1468	(Coro::async {	2577	(async {
		2578	$self->deactivate_recursive; # just to be sure
1469	unless (eval {	2579	unless (eval {
1470		2580	$self->goto ($slaying, $hp, $sp);
1471	prepare_random_map $exit
1472	if $exit->slaying eq "/!";
1473
1474	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1475	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1476		2581
1477	1;	2582	1;
1478	}) {	2583	}) {
1479	$self->message ("Something went wrong deep within the crossfire server. "	2584	$self->message ("Something went wrong deep within the crossfire server. "
1480	. "I'll try to bring you back to the map you were before. "	2585	. "I'll try to bring you back to the map you were before. "
1481	. "Please report this to the dungeon master",	2586	. "Please report this to the dungeon master!",
1482	cf::NDI_UNIQUE | cf::NDI_RED);	2587	cf::NDI_UNIQUE | cf::NDI_RED);
1483		2588
1484	warn "ERROR in enter_exit: $@";	2589	warn "ERROR in enter_exit: $@";
1485	$self->leave_link;	2590	$self->leave_link;
1486	}	2591	}
1487	})->prio (1);	2592	})->prio (1);
…		…
1500		2605
1501	sub cf::client::send_drawinfo {	2606	sub cf::client::send_drawinfo {
1502	my ($self, $text, $flags) = @_;	2607	my ($self, $text, $flags) = @_;
1503		2608
1504	utf8::encode $text;	2609	utf8::encode $text;
1505	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2610	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1506	}	2611	}
1507		2612
		2613	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2614
		2615	Send a drawinfo or msg packet to the client, formatting the msg for the
		2616	client if neccessary. C<$type> should be a string identifying the type of
		2617	the message, with C<log> being the default. If C<$color> is negative, suppress
		2618	the message unless the client supports the msg packet.
		2619
		2620	=cut
		2621
		2622	our %CHANNEL = (
		2623	"c/identify" => {
		2624	id => "identify",
		2625	title => "Identify",
		2626	reply => undef,
		2627	tooltip => "Items recently identified",
		2628	},
		2629	"c/examine" => {
		2630	id => "examine",
		2631	title => "Examine",
		2632	reply => undef,
		2633	tooltip => "Signs and other items you examined",
		2634	},
		2635	);
		2636
		2637	sub cf::client::send_msg {
		2638	my ($self, $channel, $msg, $color, @extra) = @_;
		2639
		2640	$msg = $self->pl->expand_cfpod ($msg);
		2641
		2642	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2643
		2644	# check predefined channels, for the benefit of C
		2645	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2646
		2647	if (ref $channel) {
		2648	# send meta info to client, if not yet sent
		2649	unless (exists $self->{channel}{$channel->{id}}) {
		2650	$self->{channel}{$channel->{id}} = $channel;
		2651	$self->ext_msg (channel_info => $channel)
		2652	if $self->can_msg;
		2653	}
		2654
		2655	$channel = $channel->{id};
		2656	}
		2657
		2658	return unless @extra || length $msg;
		2659
		2660	if ($self->can_msg) {
		2661	# default colour, mask it out
		2662	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2663	if $color & cf::NDI_DEF;
		2664
		2665	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2666	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2667	} else {
		2668	if ($color >= 0) {
		2669	# replace some tags by gcfclient-compatible ones
		2670	for ($msg) {
		2671	1 while
		2672	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2673	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2674	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2675	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2676	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2677	}
		2678
		2679	$color &= cf::NDI_COLOR_MASK;
		2680
		2681	utf8::encode $msg;
		2682
		2683	if (0 && $msg =~ /\[/) {
		2684	# COMMAND/INFO
		2685	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2686	} else {
		2687	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2688	$self->send_packet ("drawinfo $color $msg")
		2689	}
		2690	}
		2691	}
		2692	}
		2693
		2694	=item $client->ext_msg ($type, @msg)
		2695
		2696	Sends an ext event to the client.
		2697
		2698	=cut
		2699
		2700	sub cf::client::ext_msg($$@) {
		2701	my ($self, $type, @msg) = @_;
		2702
		2703	if ($self->extcmd == 2) {
		2704	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2705	} elsif ($self->extcmd == 1) { # TODO: remove
		2706	push @msg, msgtype => "event_$type";
		2707	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2708	}
		2709	}
		2710
		2711	=item $client->ext_reply ($msgid, @msg)
		2712
		2713	Sends an ext reply to the client.
		2714
		2715	=cut
		2716
		2717	sub cf::client::ext_reply($$@) {
		2718	my ($self, $id, @msg) = @_;
		2719
		2720	if ($self->extcmd == 2) {
		2721	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2722	} elsif ($self->extcmd == 1) {
		2723	#TODO: version 1, remove
		2724	unshift @msg, msgtype => "reply", msgid => $id;
		2725	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2726	}
		2727	}
1508		2728
1509	=item $success = $client->query ($flags, "text", \&cb)	2729	=item $success = $client->query ($flags, "text", \&cb)
1510		2730
1511	Queues a query to the client, calling the given callback with	2731	Queues a query to the client, calling the given callback with
1512	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2732	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1513	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2733	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1514		2734
1515	Queries can fail, so check the return code. Or don't, as queries will become	2735	Queries can fail, so check the return code. Or don't, as queries will
1516	reliable at some point in the future.	2736	become reliable at some point in the future.
1517		2737
1518	=cut	2738	=cut
1519		2739
1520	sub cf::client::query {	2740	sub cf::client::query {
1521	my ($self, $flags, $text, $cb) = @_;	2741	my ($self, $flags, $text, $cb) = @_;
…		…
1529	utf8::encode $text;	2749	utf8::encode $text;
1530	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2750	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1531		2751
1532	$self->send_packet ($self->{query_queue}[0][0])	2752	$self->send_packet ($self->{query_queue}[0][0])
1533	if @{ $self->{query_queue} } == 1;	2753	if @{ $self->{query_queue} } == 1;
		2754
		2755	1
1534	}	2756	}
1535		2757
1536	cf::client->attach (	2758	cf::client->attach (
		2759	on_connect => sub {
		2760	my ($ns) = @_;
		2761
		2762	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2763	},
1537	on_reply => sub {	2764	on_reply => sub {
1538	my ($ns, $msg) = @_;	2765	my ($ns, $msg) = @_;
1539		2766
1540	# this weird shuffling is so that direct followup queries	2767	# this weird shuffling is so that direct followup queries
1541	# get handled first	2768	# get handled first
1542	my $queue = delete $ns->{query_queue};	2769	my $queue = delete $ns->{query_queue}
		2770	or return; # be conservative, not sure how that can happen, but we saw a crash here
1543		2771
1544	(shift @$queue)->[1]->($msg);	2772	(shift @$queue)->[1]->($msg);
		2773	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1545		2774
1546	push @{ $ns->{query_queue} }, @$queue;	2775	push @{ $ns->{query_queue} }, @$queue;
1547		2776
1548	if (@{ $ns->{query_queue} } == @$queue) {	2777	if (@{ $ns->{query_queue} } == @$queue) {
1549	if (@$queue) {	2778	if (@$queue) {
…		…
1551	} else {	2780	} else {
1552	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2781	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1553	}	2782	}
1554	}	2783	}
1555	},	2784	},
		2785	on_exticmd => sub {
		2786	my ($ns, $buf) = @_;
		2787
		2788	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2789
		2790	if (ref $msg) {
		2791	my ($type, $reply, @payload) =
		2792	"ARRAY" eq ref $msg
		2793	? @$msg
		2794	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2795
		2796	my @reply;
		2797
		2798	if (my $cb = $EXTICMD{$type}) {
		2799	@reply = $cb->($ns, @payload);
		2800	}
		2801
		2802	$ns->ext_reply ($reply, @reply)
		2803	if $reply;
		2804
		2805	} else {
		2806	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2807	}
		2808
		2809	cf::override;
		2810	},
1556	);	2811	);
1557		2812
1558	=item $client->coro (\&cb)	2813	=item $client->async (\&cb)
1559		2814
1560	Create a new coroutine, running the specified callback. The coroutine will	2815	Create a new coroutine, running the specified callback. The coroutine will
1561	be automatically cancelled when the client gets destroyed (e.g. on logout,	2816	be automatically cancelled when the client gets destroyed (e.g. on logout,
1562	or loss of connection).	2817	or loss of connection).
1563		2818
1564	=cut	2819	=cut
1565		2820
1566	sub cf::client::coro {	2821	sub cf::client::async {
1567	my ($self, $cb) = @_;	2822	my ($self, $cb) = @_;
1568		2823
1569	my $coro; $coro = async {	2824	my $coro = &Coro::async ($cb);
1570	eval {
1571	$cb->();
1572	};
1573	warn $@ if $@;
1574	};
1575		2825
1576	$coro->on_destroy (sub {	2826	$coro->on_destroy (sub {
1577	delete $self->{_coro}{$coro+0};	2827	delete $self->{_coro}{$coro+0};
1578	});	2828	});
1579		2829
…		…
1606	our $safe = new Safe "safe";	2856	our $safe = new Safe "safe";
1607	our $safe_hole = new Safe::Hole;	2857	our $safe_hole = new Safe::Hole;
1608		2858
1609	$SIG{FPE} = 'IGNORE';	2859	$SIG{FPE} = 'IGNORE';
1610		2860
1611	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2861	$safe->permit_only (Opcode::opset qw(
		2862	:base_core :base_mem :base_orig :base_math
		2863	grepstart grepwhile mapstart mapwhile
		2864	sort time
		2865	));
1612		2866
1613	# here we export the classes and methods available to script code	2867	# here we export the classes and methods available to script code
1614		2868
1615	=pod	2869	=pod
1616		2870
1617	The following fucntions and emthods are available within a safe environment:	2871	The following functions and methods are available within a safe environment:
1618		2872
1619	cf::object contr pay_amount pay_player map	2873	cf::object
		2874	contr pay_amount pay_player map x y force_find force_add
		2875	insert remove name archname title slaying race decrease_ob_nr
		2876
1620	cf::object::player player	2877	cf::object::player
1621	cf::player peaceful	2878	player
1622	cf::map trigger	2879
		2880	cf::player
		2881	peaceful
		2882
		2883	cf::map
		2884	trigger
1623		2885
1624	=cut	2886	=cut
1625		2887
1626	for (	2888	for (
1627	["cf::object" => qw(contr pay_amount pay_player map)],	2889	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2890	insert remove inv name archname title slaying race
		2891	decrease_ob_nr)],
1628	["cf::object::player" => qw(player)],	2892	["cf::object::player" => qw(player)],
1629	["cf::player" => qw(peaceful)],	2893	["cf::player" => qw(peaceful)],
1630	["cf::map" => qw(trigger)],	2894	["cf::map" => qw(trigger)],
1631	) {	2895	) {
1632	no strict 'refs';	2896	no strict 'refs';
…		…
1703	=back	2967	=back
1704		2968
1705	=cut	2969	=cut
1706		2970
1707	#############################################################################	2971	#############################################################################
		2972	# the server's init and main functions
1708		2973
1709	=head2 EXTENSION DATABASE SUPPORT	2974	sub load_facedata($) {
		2975	my ($path) = @_;
1710		2976
1711	Crossfire maintains a very simple database for extension use. It can	2977	# HACK to clear player env face cache, we need some signal framework
1712	currently store anything that can be serialised using Storable, which	2978	# for this (global event?)
1713	excludes objects.	2979	%ext::player_env::MUSIC_FACE_CACHE = ();
1714		2980
1715	The parameter C<$family> should best start with the name of the extension	2981	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1716	using it, it should be unique.
1717		2982
1718	=over 4	2983	warn "loading facedata from $path\n";
1719		2984
1720	=item $hashref = cf::db_get $family	2985	my $facedata;
		2986	0 < aio_load $path, $facedata
		2987	or die "$path: $!";
1721		2988
1722	Return a hashref for use by the extension C<$family>, which can be	2989	$facedata = Coro::Storable::thaw $facedata;
1723	modified. After modifications, you have to call C<cf::db_dirty> or
1724	C<cf::db_sync>.
1725		2990
1726	=item $value = cf::db_get $family => $key	2991	$facedata->{version} == 2
		2992	or cf::cleanup "$path: version mismatch, cannot proceed.";
1727		2993
1728	Returns a single value from the database	2994	# patch in the exptable
1729		2995	$facedata->{resource}{"res/exp_table"} = {
1730	=item cf::db_put $family => $hashref	2996	type => FT_RSRC,
1731		2997	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1732	Stores the given family hashref into the database. Updates are delayed, if
1733	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1734
1735	=item cf::db_put $family => $key => $value
1736
1737	Stores the given C<$value> in the family hash. Updates are delayed, if you
1738	want the data to be synced to disk immediately, use C<cf::db_sync>.
1739
1740	=item cf::db_dirty
1741
1742	Marks the database as dirty, to be updated at a later time.
1743
1744	=item cf::db_sync
1745
1746	Immediately write the database to disk I<if it is dirty>.
1747
1748	=cut
1749
1750	our $DB;
1751
1752	{
1753	my $path = cf::localdir . "/database.pst";
1754
1755	sub db_load() {
1756	warn "loading database $path\n";#d# remove later
1757	$DB = stat $path ? Storable::retrieve $path : { };
1758	}
1759
1760	my $pid;
1761
1762	sub db_save() {
1763	warn "saving database $path\n";#d# remove later
1764	waitpid $pid, 0 if $pid;
1765	if (0 == ($pid = fork)) {
1766	$DB->{_meta}{version} = 1;
1767	Storable::nstore $DB, "$path~";
1768	rename "$path~", $path;
1769	cf::_exit 0 if defined $pid;
1770	}
1771	}
1772
1773	my $dirty;
1774
1775	sub db_sync() {
1776	db_save if $dirty;
1777	undef $dirty;
1778	}
1779
1780	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1781	db_sync;
1782	});	2998	};
		2999	cf::cede_to_tick;
1783		3000
1784	sub db_dirty() {
1785	$dirty = 1;
1786	$idle->start;
1787	}	3001	{
		3002	my $faces = $facedata->{faceinfo};
1788		3003
1789	sub db_get($;$) {	3004	while (my ($face, $info) = each %$faces) {
1790	@_ >= 2	3005	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1791	? $DB->{$_[0]}{$_[1]}	3006	cf::face::set_visibility $idx, $info->{visibility};
1792	: ($DB->{$_[0]} ||= { })	3007	cf::face::set_magicmap $idx, $info->{magicmap};
1793	}	3008	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3009	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1794		3010
1795	sub db_put($$;$) {	3011	cf::cede_to_tick;
1796	if (@_ >= 3) {
1797	$DB->{$_[0]}{$_[1]} = $_[2];
1798	} else {
1799	$DB->{$_[0]} = $_[1];
1800	}
1801	db_dirty;
1802	}
1803
1804	cf::global->attach (
1805	prio => 10000,
1806	on_cleanup => sub {
1807	db_sync;
1808	},	3012	}
1809	);
1810	}
1811		3013
1812	#############################################################################	3014	while (my ($face, $info) = each %$faces) {
1813	# the server's main()	3015	next unless $info->{smooth};
		3016	my $idx = cf::face::find $face
		3017	or next;
		3018	if (my $smooth = cf::face::find $info->{smooth}) {
		3019	cf::face::set_smooth $idx, $smooth;
		3020	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3021	} else {
		3022	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3023	}
1814		3024
1815	sub cfg_load {	3025	cf::cede_to_tick;
		3026	}
		3027	}
		3028
		3029	{
		3030	my $anims = $facedata->{animinfo};
		3031
		3032	while (my ($anim, $info) = each %$anims) {
		3033	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3034	cf::cede_to_tick;
		3035	}
		3036
		3037	cf::anim::invalidate_all; # d'oh
		3038	}
		3039
		3040	{
		3041	# TODO: for gcfclient pleasure, we should give resources
		3042	# that gcfclient doesn't grok a >10000 face index.
		3043	my $res = $facedata->{resource};
		3044
		3045	my $soundconf = delete $res->{"res/sound.conf"};
		3046
		3047	while (my ($name, $info) = each %$res) {
		3048	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3049	my $data;
		3050
		3051	if ($info->{type} & 1) {
		3052	# prepend meta info
		3053
		3054	my $meta = $enc->encode ({
		3055	name => $name,
		3056	%{ $info->{meta} || {} },
		3057	});
		3058
		3059	$data = pack "(w/a*)*", $meta, $info->{data};
		3060	} else {
		3061	$data = $info->{data};
		3062	}
		3063
		3064	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3065	cf::face::set_type $idx, $info->{type};
		3066
		3067	cf::cede_to_tick;
		3068	}
		3069
		3070	if ($soundconf) {
		3071	$soundconf = $enc->decode (delete $soundconf->{data});
		3072
		3073	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3074	my $sound = $soundconf->{compat}[$_]
		3075	or next;
		3076
		3077	my $face = cf::face::find "sound/$sound->[1]";
		3078	cf::sound::set $sound->[0] => $face;
		3079	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3080	}
		3081
		3082	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3083	my $face = cf::face::find "sound/$v";
		3084	cf::sound::set $k => $face;
		3085	}
		3086	}
		3087	}
		3088
		3089	1
		3090	}
		3091
		3092	register_exticmd fx_want => sub {
		3093	my ($ns, $want) = @_;
		3094
		3095	while (my ($k, $v) = each %$want) {
		3096	$ns->fx_want ($k, $v);
		3097	}
		3098	};
		3099
		3100	sub reload_regions {
		3101	# HACK to clear player env face cache, we need some signal framework
		3102	# for this (global event?)
		3103	%ext::player_env::MUSIC_FACE_CACHE = ();
		3104
		3105	load_resource_file "$MAPDIR/regions"
		3106	or die "unable to load regions file\n";
		3107
		3108	for (cf::region::list) {
		3109	$_->{match} = qr/$_->{match}/
		3110	if exists $_->{match};
		3111	}
		3112	}
		3113
		3114	sub reload_facedata {
		3115	load_facedata "$DATADIR/facedata"
		3116	or die "unable to load facedata\n";
		3117	}
		3118
		3119	sub reload_archetypes {
		3120	load_resource_file "$DATADIR/archetypes"
		3121	or die "unable to load archetypes\n";
		3122	#d# NEED to laod twice to resolve forward references
		3123	# this really needs to be done in an extra post-pass
		3124	# (which needs to be synchronous, so solve it differently)
		3125	load_resource_file "$DATADIR/archetypes"
		3126	or die "unable to load archetypes\n";
		3127	}
		3128
		3129	sub reload_treasures {
		3130	load_resource_file "$DATADIR/treasures"
		3131	or die "unable to load treasurelists\n";
		3132	}
		3133
		3134	sub reload_resources {
		3135	warn "reloading resource files...\n";
		3136
		3137	reload_regions;
		3138	reload_facedata;
		3139	#reload_archetypes;#d#
		3140	reload_archetypes;
		3141	reload_treasures;
		3142
		3143	warn "finished reloading resource files\n";
		3144	}
		3145
		3146	sub init {
		3147	reload_resources;
		3148	}
		3149
		3150	sub reload_config {
1816	open my $fh, "<:utf8", cf::confdir . "/config"	3151	open my $fh, "<:utf8", "$CONFDIR/config"
1817	or return;	3152	or return;
1818		3153
1819	local $/;	3154	local $/;
1820	*CFG = YAML::Syck::Load <$fh>;	3155	*CFG = YAML::Syck::Load <$fh>;
		3156
		3157	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3158
		3159	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3160	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3161
		3162	if (exists $CFG{mlockall}) {
		3163	eval {
		3164	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3165	and die "WARNING: m(un)lockall failed: $!\n";
		3166	};
		3167	warn $@ if $@;
		3168	}
1821	}	3169	}
1822		3170
1823	sub main {	3171	sub main {
1824	# we must not ever block the main coroutine	3172	# we must not ever block the main coroutine
1825	local $Coro::idle = sub {	3173	local $Coro::idle = sub {
1826	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3174	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1827	(Coro::unblock_sub {	3175	(async {
1828	Event::one_event;	3176	Event::one_event;
1829	})->();	3177	})->prio (Coro::PRIO_MAX);
1830	};	3178	};
1831		3179
1832	cfg_load;	3180	reload_config;
1833	db_load;	3181	db_init;
1834	load_extensions;	3182	load_extensions;
		3183
		3184	$TICK_WATCHER->start;
1835	Event::loop;	3185	Event::loop;
1836	}	3186	}
1837		3187
1838	#############################################################################	3188	#############################################################################
1839	# initialisation	3189	# initialisation and cleanup
1840		3190
		3191	# install some emergency cleanup handlers
		3192	BEGIN {
		3193	for my $signal (qw(INT HUP TERM)) {
		3194	Event->signal (
		3195	reentrant => 0,
		3196	data => WF_AUTOCANCEL,
		3197	signal => $signal,
		3198	prio => 0,
		3199	cb => sub {
		3200	cf::cleanup "SIG$signal";
		3201	},
		3202	);
		3203	}
		3204	}
		3205
		3206	sub write_runtime {
		3207	my $runtime = "$LOCALDIR/runtime";
		3208
		3209	# first touch the runtime file to show we are still running:
		3210	# the fsync below can take a very very long time.
		3211
		3212	IO::AIO::aio_utime $runtime, undef, undef;
		3213
		3214	my $guard = cf::lock_acquire "write_runtime";
		3215
		3216	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3217	or return;
		3218
		3219	my $value = $cf::RUNTIME + 90 + 10;
		3220	# 10 is the runtime save interval, for a monotonic clock
		3221	# 60 allows for the watchdog to kill the server.
		3222
		3223	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3224	and return;
		3225
		3226	# always fsync - this file is important
		3227	aio_fsync $fh
		3228	and return;
		3229
		3230	# touch it again to show we are up-to-date
		3231	aio_utime $fh, undef, undef;
		3232
		3233	close $fh
		3234	or return;
		3235
		3236	aio_rename "$runtime~", $runtime
		3237	and return;
		3238
		3239	warn "runtime file written.\n";
		3240
		3241	1
		3242	}
		3243
		3244	sub emergency_save() {
		3245	my $freeze_guard = cf::freeze_mainloop;
		3246
		3247	warn "enter emergency perl save\n";
		3248
		3249	cf::sync_job {
		3250	# use a peculiar iteration method to avoid tripping on perl
		3251	# refcount bugs in for. also avoids problems with players
		3252	# and maps saved/destroyed asynchronously.
		3253	warn "begin emergency player save\n";
		3254	for my $login (keys %cf::PLAYER) {
		3255	my $pl = $cf::PLAYER{$login} or next;
		3256	$pl->valid or next;
		3257	$pl->save;
		3258	}
		3259	warn "end emergency player save\n";
		3260
		3261	warn "begin emergency map save\n";
		3262	for my $path (keys %cf::MAP) {
		3263	my $map = $cf::MAP{$path} or next;
		3264	$map->valid or next;
		3265	$map->save;
		3266	}
		3267	warn "end emergency map save\n";
		3268
		3269	warn "begin emergency database checkpoint\n";
		3270	BDB::db_env_txn_checkpoint $DB_ENV;
		3271	warn "end emergency database checkpoint\n";
		3272	};
		3273
		3274	warn "leave emergency perl save\n";
		3275	}
		3276
		3277	sub post_cleanup {
		3278	my ($make_core) = @_;
		3279
		3280	warn Carp::longmess "post_cleanup backtrace"
		3281	if $make_core;
		3282	}
		3283
1841	sub reload() {	3284	sub do_reload_perl() {
1842	# can/must only be called in main	3285	# can/must only be called in main
1843	if ($Coro::current != $Coro::main) {	3286	if ($Coro::current != $Coro::main) {
1844	warn "can only reload from main coroutine\n";	3287	warn "can only reload from main coroutine";
1845	return;	3288	return;
1846	}	3289	}
1847		3290
1848	warn "reloading...";	3291	warn "reloading...";
1849		3292
1850	local $FREEZE = 1;	3293	warn "entering sync_job";
		3294
		3295	cf::sync_job {
		3296	cf::write_runtime; # external watchdog should not bark
1851	cf::emergency_save;	3297	cf::emergency_save;
		3298	cf::write_runtime; # external watchdog should not bark
1852		3299
1853	eval {	3300	warn "syncing database to disk";
		3301	BDB::db_env_txn_checkpoint $DB_ENV;
		3302
1854	# if anything goes wrong in here, we should simply crash as we already saved	3303	# if anything goes wrong in here, we should simply crash as we already saved
1855		3304
1856	# cancel all watchers	3305	warn "cancelling all WF_AUTOCANCEL watchers";
1857	for (Event::all_watchers) {	3306	for (Event::all_watchers) {
1858	$_->cancel if $_->data & WF_AUTOCANCEL;	3307	$_->cancel if $_->data & WF_AUTOCANCEL;
1859	}	3308	}
1860		3309
		3310	warn "flushing outstanding aio requests";
		3311	for (;;) {
		3312	BDB::flush;
		3313	IO::AIO::flush;
		3314	Coro::cede;
		3315	last unless IO::AIO::nreqs || BDB::nreqs;
		3316	warn "iterate...";
		3317	}
		3318
		3319	++$RELOAD;
		3320
1861	# cancel all extension coros	3321	warn "cancelling all extension coros";
1862	$_->cancel for values %EXT_CORO;	3322	$_->cancel for values %EXT_CORO;
1863	%EXT_CORO = ();	3323	%EXT_CORO = ();
1864		3324
1865	# unload all extensions	3325	warn "removing commands";
1866	for (@exts) {	3326	%COMMAND = ();
		3327
		3328	warn "removing ext/exti commands";
		3329	%EXTCMD = ();
		3330	%EXTICMD = ();
		3331
		3332	warn "unloading/nuking all extensions";
		3333	for my $pkg (@EXTS) {
1867	warn "unloading <$_>";	3334	warn "... unloading $pkg";
1868	unload_extension $_;	3335
		3336	if (my $cb = $pkg->can ("unload")) {
		3337	eval {
		3338	$cb->($pkg);
		3339	1
		3340	} or warn "$pkg unloaded, but with errors: $@";
1869	}	3341	}
1870		3342
		3343	warn "... nuking $pkg";
		3344	Symbol::delete_package $pkg;
		3345	}
		3346
1871	# unload all modules loaded from $LIBDIR	3347	warn "unloading all perl modules loaded from $LIBDIR";
1872	while (my ($k, $v) = each %INC) {	3348	while (my ($k, $v) = each %INC) {
1873	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3349	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1874		3350
1875	warn "removing <$k>";	3351	warn "... unloading $k";
1876	delete $INC{$k};	3352	delete $INC{$k};
1877		3353
1878	$k =~ s/\.pm$//;	3354	$k =~ s/\.pm$//;
1879	$k =~ s/\//::/g;	3355	$k =~ s/\//::/g;
1880		3356
…		…
1883	}	3359	}
1884		3360
1885	Symbol::delete_package $k;	3361	Symbol::delete_package $k;
1886	}	3362	}
1887		3363
1888	# sync database to disk
1889	cf::db_sync;
1890	IO::AIO::flush;
1891
1892	# get rid of safe::, as good as possible	3364	warn "getting rid of safe::, as good as possible";
1893	Symbol::delete_package "safe::$_"	3365	Symbol::delete_package "safe::$_"
1894	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3366	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1895		3367
1896	# remove register_script_function callbacks
1897	# TODO
1898
1899	# unload cf.pm "a bit"	3368	warn "unloading cf.pm \"a bit\"";
1900	delete $INC{"cf.pm"};	3369	delete $INC{"cf.pm"};
		3370	delete $INC{"cf/pod.pm"};
1901		3371
1902	# don't, removes xs symbols, too,	3372	# don't, removes xs symbols, too,
1903	# and global variables created in xs	3373	# and global variables created in xs
1904	#Symbol::delete_package __PACKAGE__;	3374	#Symbol::delete_package __PACKAGE__;
1905		3375
1906	# reload cf.pm	3376	warn "unload completed, starting to reload now";
		3377
1907	warn "reloading cf.pm";	3378	warn "reloading cf.pm";
1908	require cf;	3379	require cf;
1909	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3380	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1910		3381
1911	# load config and database again	3382	warn "loading config and database again";
1912	cf::cfg_load;	3383	cf::reload_config;
1913	cf::db_load;
1914		3384
1915	# load extensions
1916	warn "load extensions";	3385	warn "loading extensions";
1917	cf::load_extensions;	3386	cf::load_extensions;
1918		3387
1919	# reattach attachments to objects	3388	warn "reattaching attachments to objects/players";
1920	warn "reattach";	3389	_global_reattach; # objects, sockets
1921	_global_reattach;	3390	warn "reattaching attachments to maps";
1922	};	3391	reattach $_ for values %MAP;
		3392	warn "reattaching attachments to players";
		3393	reattach $_ for values %PLAYER;
1923		3394
1924	if ($@) {	3395	warn "leaving sync_job";
		3396
		3397	1
		3398	} or do {
1925	warn $@;	3399	warn $@;
1926	warn "error while reloading, exiting.";	3400	warn "error while reloading, exiting.";
1927	exit 1;	3401	exit 1;
1928	}	3402	};
1929		3403
1930	warn "reloaded successfully";	3404	warn "reloaded";
1931	};	3405	};
1932		3406
1933	#############################################################################	3407	our $RELOAD_WATCHER; # used only during reload
1934		3408
1935	unless ($LINK_MAP) {	3409	sub reload_perl() {
1936	$LINK_MAP = cf::map::new;	3410	# doing reload synchronously and two reloads happen back-to-back,
		3411	# coro crashes during coro_state_free->destroy here.
1937		3412
1938	$LINK_MAP->width (41);	3413	$RELOAD_WATCHER ||= Event->timer (
1939	$LINK_MAP->height (41);	3414	reentrant => 0,
1940	$LINK_MAP->alloc;
1941	$LINK_MAP->path ("{link}");
1942	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1943	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1944
1945	# dirty hack because... archetypes are not yet loaded
1946	Event->timer (
1947	after => 2,	3415	after => 0,
		3416	data => WF_AUTOCANCEL,
1948	cb => sub {	3417	cb => sub {
1949	$_[0]->w->cancel;	3418	do_reload_perl;
1950		3419	undef $RELOAD_WATCHER;
1951	# provide some exits "home"
1952	my $exit = cf::object::new "exit";
1953
1954	$exit->slaying ($EMERGENCY_POSITION->[0]);
1955	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1956	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1957
1958	$LINK_MAP->insert ($exit->clone, 19, 19);
1959	$LINK_MAP->insert ($exit->clone, 19, 20);
1960	$LINK_MAP->insert ($exit->clone, 19, 21);
1961	$LINK_MAP->insert ($exit->clone, 20, 19);
1962	$LINK_MAP->insert ($exit->clone, 20, 21);
1963	$LINK_MAP->insert ($exit->clone, 21, 19);
1964	$LINK_MAP->insert ($exit->clone, 21, 20);
1965	$LINK_MAP->insert ($exit->clone, 21, 21);
1966
1967	$exit->destroy;
1968	});	3420	},
1969		3421	);
1970	$LINK_MAP->{deny_save} = 1;
1971	$LINK_MAP->{deny_reset} = 1;
1972
1973	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1974	}	3422	}
1975
1976	register "<global>", __PACKAGE__;
1977		3423
1978	register_command "reload" => sub {	3424	register_command "reload" => sub {
1979	my ($who, $arg) = @_;	3425	my ($who, $arg) = @_;
1980		3426
1981	if ($who->flag (FLAG_WIZ)) {	3427	if ($who->flag (FLAG_WIZ)) {
1982	$who->message ("start of reload.");
1983	reload;
1984	$who->message ("end of reload.");	3428	$who->message ("reloading server.");
		3429	async { reload_perl };
1985	}	3430	}
1986	};	3431	};
1987		3432
1988	unshift @INC, $LIBDIR;	3433	unshift @INC, $LIBDIR;
		3434
		3435	my $bug_warning = 0;
		3436
		3437	our @WAIT_FOR_TICK;
		3438	our @WAIT_FOR_TICK_BEGIN;
		3439
		3440	sub wait_for_tick {
		3441	return unless $TICK_WATCHER->is_active;
		3442	return if $Coro::current == $Coro::main;
		3443
		3444	my $signal = new Coro::Signal;
		3445	push @WAIT_FOR_TICK, $signal;
		3446	$signal->wait;
		3447	}
		3448
		3449	sub wait_for_tick_begin {
		3450	return unless $TICK_WATCHER->is_active;
		3451	return if $Coro::current == $Coro::main;
		3452
		3453	my $signal = new Coro::Signal;
		3454	push @WAIT_FOR_TICK_BEGIN, $signal;
		3455	$signal->wait;
		3456	}
		3457
		3458	our $stat_fh;
		3459	sysopen $stat_fh, "/tmp/cfstats", Fcntl::O_APPEND | Fcntl::O_CREAT | Fcntl::O_WRONLY, 0600;#d#
1989		3460
1990	$TICK_WATCHER = Event->timer (	3461	$TICK_WATCHER = Event->timer (
1991	reentrant => 0,	3462	reentrant => 0,
		3463	parked => 1,
1992	prio => 0,	3464	prio => 0,
1993	at => $NEXT_TICK || $TICK,	3465	at => $NEXT_TICK || $TICK,
1994	data => WF_AUTOCANCEL,	3466	data => WF_AUTOCANCEL,
1995	cb => sub {	3467	cb => sub {
1996	unless ($FREEZE) {	3468	if ($Coro::current != $Coro::main) {
		3469	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3470	unless ++$bug_warning > 10;
		3471	return;
		3472	}
		3473
		3474	my @pl = cf::player::list; my $stats = sprintf "%.2f %d %d %d", $RUNTIME, (scalar @pl), cf::object::actives_size, cf::object::objects_size; #d#
		3475
		3476	$NOW = $tick_start = Event::time;
		3477
1997	cf::server_tick; # one server iteration	3478	cf::server_tick; # one server iteration
		3479
1998	$RUNTIME += $TICK;	3480	$RUNTIME += $TICK;
1999	}
2000
2001	$NEXT_TICK += $TICK;	3481	$NEXT_TICK += $TICK;
2002		3482
		3483	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3484	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3485	Coro::async_pool {
		3486	write_runtime
		3487	or warn "ERROR: unable to write runtime file: $!";
		3488	};
		3489	}
		3490
		3491	# my $AFTER = Event::time;
		3492	# warn $AFTER - $NOW;#d#
		3493
		3494	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3495	$sig->send;
		3496	}
		3497	while (my $sig = shift @WAIT_FOR_TICK) {
		3498	$sig->send;
		3499	}
		3500
		3501	$NOW = Event::time;
		3502
2003	# if we are delayed by four ticks or more, skip them all	3503	# if we are delayed by four ticks or more, skip them all
2004	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3504	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2005		3505
2006	$TICK_WATCHER->at ($NEXT_TICK);	3506	$TICK_WATCHER->at ($NEXT_TICK);
2007	$TICK_WATCHER->start;	3507	$TICK_WATCHER->start;
		3508
		3509	$LOAD = ($NOW - $tick_start) / $TICK;
		3510	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3511
		3512	_post_tick;
		3513
		3514	# gather some statistics#d#
		3515	$stats .= sprintf " %d\n", 10000 * ($NOW - $tick_start);#d#
		3516	IO::AIO::aio_write $stat_fh, undef, undef, $stats, 0;#d#
2008	},	3517	},
2009	);	3518	);
2010		3519
		3520	{
		3521	BDB::min_parallel 8;
2011	IO::AIO::max_poll_time $TICK * 0.2;	3522	BDB::max_poll_time $TICK * 0.1;
2012		3523	$BDB_POLL_WATCHER = Event->io (
2013	Event->io (	3524	reentrant => 0,
2014	fd => IO::AIO::poll_fileno,	3525	fd => BDB::poll_fileno,
2015	poll => 'r',	3526	poll => 'r',
2016	prio => 5,	3527	prio => 0,
2017	data => WF_AUTOCANCEL,
2018	cb => \&IO::AIO::poll_cb,
2019	);
2020
2021	Event->timer (
2022	data => WF_AUTOCANCEL,	3528	data => WF_AUTOCANCEL,
		3529	cb => \&BDB::poll_cb,
		3530	);
		3531
		3532	BDB::set_sync_prepare {
		3533	my $status;
		3534	my $current = $Coro::current;
		3535	(
		3536	sub {
		3537	$status = $!;
		3538	$current->ready; undef $current;
		3539	},
		3540	sub {
		3541	Coro::schedule while defined $current;
		3542	$! = $status;
		3543	},
		3544	)
		3545	};
		3546
		3547	unless ($DB_ENV) {
		3548	$DB_ENV = BDB::db_env_create;
		3549
		3550	cf::sync_job {
		3551	eval {
		3552	BDB::db_env_open
		3553	$DB_ENV,
		3554	$BDBDIR,
		3555	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3556	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3557	0666;
		3558
		3559	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3560
		3561	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3562	| BDB::LOG_AUTOREMOVE, 1);
		3563	$DB_ENV->set_lk_detect;
		3564	};
		3565
		3566	cf::cleanup "db_env_open(db): $@" if $@;
		3567	};
		3568	}
		3569
		3570	$BDB_CHECKPOINT_WATCHER = Event->timer (
2023	after => 0,	3571	after => 11,
2024	interval => 10,	3572	interval => 60,
		3573	hard => 1,
		3574	prio => 0,
		3575	data => WF_AUTOCANCEL,
2025	cb => sub {	3576	cb => sub {
2026	(Coro::unblock_sub {	3577	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
2027	write_runtime	3578	},
2028	or warn "ERROR: unable to write runtime file: $!";	3579	);
		3580	$BDB_TRICKLE_WATCHER = Event->timer (
		3581	after => 5,
		3582	interval => 10,
		3583	hard => 1,
		3584	prio => 0,
		3585	data => WF_AUTOCANCEL,
		3586	cb => sub {
		3587	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3588	},
		3589	);
		3590	}
		3591
		3592	{
		3593	IO::AIO::min_parallel 8;
		3594
		3595	undef $Coro::AIO::WATCHER;
		3596	IO::AIO::max_poll_time $TICK * 0.1;
		3597	$AIO_POLL_WATCHER = Event->io (
		3598	reentrant => 0,
		3599	data => WF_AUTOCANCEL,
		3600	fd => IO::AIO::poll_fileno,
		3601	poll => 'r',
		3602	prio => 6,
		3603	cb => \&IO::AIO::poll_cb,
		3604	);
		3605	}
		3606
		3607	my $_log_backtrace;
		3608
		3609	sub _log_backtrace {
		3610	my ($msg, @addr) = @_;
		3611
		3612	$msg =~ s/\n//;
		3613
		3614	# limit the # of concurrent backtraces
		3615	if ($_log_backtrace < 2) {
		3616	++$_log_backtrace;
		3617	async {
		3618	my @bt = fork_call {
		3619	@addr = map { sprintf "%x", $_ } @addr;
		3620	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3621	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3622	or die "addr2line: $!";
		3623
		3624	my @funcs;
		3625	my @res = <$fh>;
		3626	chomp for @res;
		3627	while (@res) {
		3628	my ($func, $line) = splice @res, 0, 2, ();
		3629	push @funcs, "[$func] $line";
		3630	}
		3631
		3632	@funcs
		3633	};
		3634
		3635	LOG llevInfo, "[ABT] $msg\n";
		3636	LOG llevInfo, "[ABT] $_\n" for @bt;
		3637	--$_log_backtrace;
2029	})->();	3638	};
		3639	} else {
		3640	LOG llevInfo, "[ABT] $msg\n";
		3641	LOG llevInfo, "[ABT] [suppressed]\n";
2030	},	3642	}
2031	);	3643	}
		3644
		3645	# load additional modules
		3646	use cf::pod;
		3647
		3648	END { cf::emergency_save }
2032		3649
2033	1	3650	1
2034		3651

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