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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.119 by root, Tue Jan 2 08:26:42 2007 UTC vs.
Revision 1.388 by root, Thu Oct 18 02:56:13 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 Storable;	8	use Socket;
		9	use Event;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.3;	15	use Coro 4.1 ();
		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 2.51 ();
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_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
		88	our $DB_ENV;
46		89
47	our %CFG;	90	our %CFG;
48		91
49	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	93	our $RUNTIME;
51		94
52	our %MAP; # all maps	95	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	96	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	97	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	98
56	our %EXT_CORO;	99	# used to convert map paths into valid unix filenames by replacing / by ∕
		100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
57		105
58	binmode STDOUT;	106	binmode STDOUT;
59	binmode STDERR;	107	binmode STDERR;
60		108
61	# read virtual server time, if available	109	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
66	}	114	}
67		115
68	mkdir cf::localdir;	116	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		118
74	# a special map that is always available	119	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		120
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	121	sub cf::map::normalise;
78		122
79	#############################################################################	123	#############################################################################
80		124
81	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
82		126
…		…
89	=item $cf::RUNTIME	133	=item $cf::RUNTIME
90		134
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	136	every server tick.
93		137
94	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		141
96	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
98		146
99	=item $cf::NOW	147	=item $cf::NOW
100		148
101	The time of the last (current) server tick.	149	The time of the last (current) server tick.
102		150
103	=item $cf::TICK	151	=item $cf::TICK
104		152
105	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
106		164
107	=item %cf::CFG	165	=item %cf::CFG
108		166
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	168	from wherever your confdir points to.
		169
		170	=item cf::wait_for_tick, cf::wait_for_tick_begin
		171
		172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		173	returns directly I<after> the tick processing (and consequently, can only wake one process
		174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
111		181
112	=back	182	=back
113		183
114	=cut	184	=cut
115		185
116	BEGIN {	186	BEGIN {
117	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	188	my $msg = join "", @_;
119	utf8::encode $msg;
120		189
121	$msg .= "\n"	190	$msg .= "\n"
122	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
123		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		194
124	LOG llevError, "cfperl: $msg";	195	LOG llevError, $msg;
125	};	196	};
126	}	197	}
127		198
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		206
135	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	208	# within the Safe compartment.
137	for my $pkg (qw(	209	for my $pkg (qw(
138	cf::global cf::attachable	210	cf::global cf::attachable
…		…
147		219
148	$Event::DIED = sub {	220	$Event::DIED = sub {
149	warn "error in event callback: @_";	221	warn "error in event callback: @_";
150	};	222	};
151		223
152	my %ext_pkg;	224	#############################################################################
153	my @exts;
154	my @hook;
155		225
156	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
157		227
158	=over 4	228	=over 4
159		229
160	=cut	230	=item dumpval $ref
161		231
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	232	=cut
		233
		234	sub dumpval {
		235	eval {
		236	local $SIG{__DIE__};
		237	my $d;
		238	if (1) {
		239	$d = new Data::Dumper([$_[0]], ["*var"]);
		240	$d->Terse(1);
		241	$d->Indent(2);
		242	$d->Quotekeys(0);
		243	$d->Useqq(1);
		244	#$d->Bless(...);
		245	$d->Seen($_[1]) if @_ > 1;
		246	$d = $d->Dump();
		247	}
		248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		249	$d
		250	} || "[unable to dump $_[0]: '$@']";
		251	}
163		252
164	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
165		254
166	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
167		256
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
176		258
177	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
178		260
179	=cut	261	=cut
180		262
181	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
183	JSON::Syck::Dump $_[0]	265	sub to_json ($) { $json_coder->encode ($_[0]) }
		266	sub from_json ($) { $json_coder->decode ($_[0]) }
		267
		268	=item cf::lock_wait $string
		269
		270	Wait until the given lock is available. See cf::lock_acquire.
		271
		272	=item my $lock = cf::lock_acquire $string
		273
		274	Wait until the given lock is available and then acquires it and returns
		275	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		276	for example when the coroutine gets canceled), the lock is automatically
		277	returned.
		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
		282	Lock names should begin with a unique identifier (for example, cf::map::find
		283	uses map_find and cf::map::load uses map_load).
		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
		289	=cut
		290
		291	our %LOCK;
		292	our %LOCKER;#d#
		293
		294	sub lock_wait($) {
		295	my ($key) = @_;
		296
		297	if ($LOCKER{$key} == $Coro::current) {#d#
		298	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		299	return;#d#
		300	}#d#
		301
		302	# wait for lock, if any
		303	while ($LOCK{$key}) {
		304	push @{ $LOCK{$key} }, $Coro::current;
		305	Coro::schedule;
		306	}
184	}	307	}
		308
		309	sub lock_acquire($) {
		310	my ($key) = @_;
		311
		312	# wait, to be sure we are not locked
		313	lock_wait $key;
		314
		315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
		317
		318	Coro::guard {
		319	delete $LOCKER{$key};#d#
		320	# wake up all waiters, to be on the safe side
		321	$_->ready for @{ delete $LOCK{$key} };
		322	}
		323	}
		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
		331	sub freeze_mainloop {
		332	return unless $TICK_WATCHER->is_active;
		333
		334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
		337	$TICK_WATCHER->stop;
		338	$guard
		339	}
		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	$Coro::current->desc ("timeslot manager");
		360
		361	my $signal = new Coro::Signal;
		362
		363	while () {
		364	next_job:
		365	my $avail = cf::till_tick;
		366	if ($avail > 0.01) {
		367	for (0 .. $#SLOT_QUEUE) {
		368	if ($SLOT_QUEUE[$_][0] < $avail) {
		369	my $job = splice @SLOT_QUEUE, $_, 1, ();
		370	$job->[2]->send;
		371	Coro::cede;
		372	goto next_job;
		373	}
		374	}
		375	}
		376
		377	if (@SLOT_QUEUE) {
		378	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		379	push @cf::WAIT_FOR_TICK, $signal;
		380	$signal->wait;
		381	} else {
		382	Coro::schedule;
		383	}
		384	}
		385	};
		386
		387	sub get_slot($;$$) {
		388	my ($time, $pri, $name) = @_;
		389
		390	$time = $TICK * .6 if $time > $TICK * .6;
		391	my $sig = new Coro::Signal;
		392
		393	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		394	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		395	$SLOT_QUEUE->ready;
		396	$sig->wait;
		397	}
		398
		399	=item cf::async { BLOCK }
		400
		401	Currently the same as Coro::async_pool, meaning you cannot use
		402	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		403	thing you are allowed to do is call C<prio> on it.
		404
		405	=cut
		406
		407	BEGIN { *async = \&Coro::async_pool }
185		408
186	=item cf::sync_job { BLOCK }	409	=item cf::sync_job { BLOCK }
187		410
188	The design of crossfire+ requires that the main coro ($Coro::main) is	411	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	412	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.	413	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		414	acceptable.
191		415
192	If it must be done, put the blocking parts into C<sync_job>. This will run	416	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	417	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	418	server will be frozen during this time, so the block should either finish
195	fast or be very important.	419	fast or be very important.
…		…
198		422
199	sub sync_job(&) {	423	sub sync_job(&) {
200	my ($job) = @_;	424	my ($job) = @_;
201		425
202	if ($Coro::current == $Coro::main) {	426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
203	# this is the main coro, too bad, we have to block	429	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	430	# till the operation succeeds, freezing the server :/
205		431
		432	LOG llevError, Carp::longmess "sync job";#d#
		433
206	# TODO: use suspend/resume instead	434	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	435	# (but this is cancel-safe)
208	local $FREEZE = 1;	436	my $freeze_guard = freeze_mainloop;
209		437
210	my $busy = 1;	438	my $busy = 1;
211	my @res;	439	my @res;
212		440
213	(Coro::async {	441	(async {
		442	$Coro::current->desc ("sync job coro");
214	@res = eval { $job->() };	443	@res = eval { $job->() };
215	warn $@ if $@;	444	warn $@ if $@;
216	undef $busy;	445	undef $busy;
217	})->prio (Coro::PRIO_MAX);	446	})->prio (Coro::PRIO_MAX);
218		447
219	while ($busy) {	448	while ($busy) {
		449	if (Coro::nready) {
220	Coro::cede_notself;	450	Coro::cede_notself;
221	Event::one_event unless Coro::nready;	451	} else {
		452	Event::one_event;
222	}	453	}
		454	}
		455
		456	$time = Event::time - $time;
		457
		458	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		459	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		460
		461	$tick_start += $time; # do not account sync jobs to server load
223		462
224	wantarray ? @res : $res[0]	463	wantarray ? @res : $res[0]
225	} else {	464	} else {
226	# we are in another coroutine, how wonderful, everything just works	465	# we are in another coroutine, how wonderful, everything just works
227		466
228	$job->()	467	$job->()
229	}	468	}
230	}	469	}
231		470
232	=item $coro = cf::coro { BLOCK }	471	=item $coro = cf::async_ext { BLOCK }
233		472
234	Creates and returns a new coro. This coro is automcatially being canceled	473	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	474	extension calling this is being unloaded.
236		475
237	=cut	476	=cut
238		477
239	sub coro(&) {	478	sub async_ext(&) {
240	my $cb = shift;	479	my $cb = shift;
241		480
242	my $coro; $coro = async {	481	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		482
249	$coro->on_destroy (sub {	483	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	484	delete $EXT_CORO{$coro+0};
251	});	485	});
252	$EXT_CORO{$coro+0} = $coro;	486	$EXT_CORO{$coro+0} = $coro;
253		487
254	$coro	488	$coro
255	}	489	}
256		490
257	sub write_runtime {	491	=item fork_call { }, $args
258	my $runtime = cf::localdir . "/runtime";
259		492
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	493	Executes the given code block with the given arguments in a seperate
261	or return;	494	process, returning the results. Everything must be serialisable with
		495	Coro::Storable. May, of course, block. Note that the executed sub may
		496	never block itself or use any form of Event handling.
262		497
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	498	=cut
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;
266		499
267	aio_fsync $fh	500	sub fork_call(&@) {
268	and return;	501	my ($cb, @args) = @_;
269		502
270	close $fh	503	# we seemingly have to make a local copy of the whole thing,
271	or return;	504	# otherwise perl prematurely frees the stuff :/
		505	# TODO: investigate and fix (likely this will be rather laborious)
272		506
273	aio_rename "$runtime~", $runtime	507	my @res = Coro::Util::fork_eval {
274	and return;	508	reset_signals;
		509	&$cb
		510	}, @args;
275		511
		512	wantarray ? @res : $res[-1]
		513	}
		514
		515	=item $value = cf::db_get $family => $key
		516
		517	Returns a single value from the environment database.
		518
		519	=item cf::db_put $family => $key => $value
		520
		521	Stores the given C<$value> in the family. It can currently store binary
		522	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		523
		524	=item $db = cf::db_table "name"
		525
		526	Create and/or open a new database table. The string must not be "db" and must be unique
		527	within each server.
		528
		529	=cut
		530
		531	sub db_table($) {
		532	my ($name) = @_;
		533	my $db = BDB::db_create $DB_ENV;
		534
		535	eval {
		536	$db->set_flags (BDB::CHKSUM);
		537
		538	utf8::encode $name;
		539	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		540	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		541	cf::cleanup "db_open(db): $!" if $!;
		542	};
		543	cf::cleanup "db_open(db): $@" if $@;
		544
		545	$db
		546	}
		547
		548	our $DB;
		549
		550	sub db_init {
		551	cf::sync_job {
		552	$DB ||= db_table "db";
		553	};
		554	}
		555
		556	sub db_get($$) {
		557	my $key = "$_[0]/$_[1]";
		558
		559	cf::sync_job {
		560	BDB::db_get $DB, undef, $key, my $data;
		561
		562	$! ? ()
		563	: $data
276	1	564	}
		565	}
		566
		567	sub db_put($$$) {
		568	BDB::dbreq_pri 4;
		569	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		570	}
		571
		572	=item cf::cache $id => [$paths...], $processversion => $process
		573
		574	Generic caching function that returns the value of the resource $id,
		575	caching and regenerating as required.
		576
		577	This function can block.
		578
		579	=cut
		580
		581	sub cache {
		582	my ($id, $src, $processversion, $process) = @_;
		583
		584	my $meta =
		585	join "\x00",
		586	$processversion,
		587	map {
		588	aio_stat $_
		589	and Carp::croak "$_: $!";
		590
		591	($_, (stat _)[7,9])
		592	} @$src;
		593
		594	my $dbmeta = db_get cache => "$id/meta";
		595	if ($dbmeta ne $meta) {
		596	# changed, we may need to process
		597
		598	my @data;
		599	my $md5;
		600
		601	for (0 .. $#$src) {
		602	0 <= aio_load $src->[$_], $data[$_]
		603	or Carp::croak "$src->[$_]: $!";
		604	}
		605
		606	# if processing is expensive, check
		607	# checksum first
		608	if (1) {
		609	$md5 =
		610	join "\x00",
		611	$processversion,
		612	map {
		613	cf::cede_to_tick;
		614	($src->[$_], Digest::MD5::md5_hex $data[$_])
		615	} 0.. $#$src;
		616
		617
		618	my $dbmd5 = db_get cache => "$id/md5";
		619	if ($dbmd5 eq $md5) {
		620	db_put cache => "$id/meta", $meta;
		621
		622	return db_get cache => "$id/data";
		623	}
		624	}
		625
		626	my $t1 = Time::HiRes::time;
		627	my $data = $process->(\@data);
		628	my $t2 = Time::HiRes::time;
		629
		630	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		631
		632	db_put cache => "$id/data", $data;
		633	db_put cache => "$id/md5" , $md5;
		634	db_put cache => "$id/meta", $meta;
		635
		636	return $data;
		637	}
		638
		639	db_get cache => "$id/data"
		640	}
		641
		642	=item cf::datalog type => key => value, ...
		643
		644	Log a datalog packet of the given type with the given key-value pairs.
		645
		646	=cut
		647
		648	sub datalog($@) {
		649	my ($type, %kv) = @_;
		650	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
277	}	651	}
278		652
279	=back	653	=back
280		654
281	=cut	655	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	# {... are special paths that are not touched
295	# ?xxx/... are special absolute paths
296	# ?random/... random maps
297	# /! non-realised random map exit
298	# /... normal maps
299	# ~/... per-player maps without a specific player (DO NOT USE)
300	# ~user/... per-player map of a specific user
301
302	if ($path =~ /^{/) {
303	# fine as it is
304	} elsif ($path =~ s{^\?random/}{}) {
305	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
306	$self->{random} = cf::from_json $data;
307	} else {
308	if ($path =~ s{^~([^/]+)?}{}) {
309	$self->{user_rel} = 1;
310
311	if (defined $1) {
312	$self->{user} = $1;
313	} elsif ($base =~ m{^~([^/]+)/}) {
314	$self->{user} = $1;
315	} else {
316	warn "cannot resolve user-relative path without user <$path,$base>\n";
317	}
318	} elsif ($path =~ /^\//) {
319	# already absolute
320	} else {
321	$base =~ s{[^/]+/?$}{};
322	return $class->new ("$base/$path");
323	}
324
325	for ($path) {
326	redo if s{/\.?/}{/};
327	redo if s{/[^/]+/\.\./}{/};
328	}
329	}
330
331	$self->{path} = $path;
332
333	$self
334	}
335
336	# the name / primary key / in-game path
337	sub as_string {
338	my ($self) = @_;
339
340	$self->{user_rel} ? "~$self->{user}$self->{path}"
341	: $self->{random} ? "?random/$self->{path}"
342	: $self->{path}
343	}
344
345	# the displayed name, this is a one way mapping
346	sub visible_name {
347	my ($self) = @_;
348
349	# if (my $rmp = $self->{random}) {
350	# # todo: be more intelligent about this
351	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
352	# } else {
353	$self->as_string
354	# }
355	}
356
357	# escape the /'s in the path
358	sub _escaped_path {
359	# ∕ is U+2215
360	(my $path = $_[0]{path}) =~ s/\//∕/g;
361	$path
362	}
363
364	# the original (read-only) location
365	sub load_path {
366	my ($self) = @_;
367
368	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
369	}
370
371	# the temporary/swap location
372	sub save_path {
373	my ($self) = @_;
374
375	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
376	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
377	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
378	}
379
380	# the unique path, might be eq to save_path
381	sub uniq_path {
382	my ($self) = @_;
383
384	$self->{user_rel} || $self->{random}
385	? undef
386	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
387	}
388
389	# return random map parameters, or undef
390	sub random_map_params {
391	my ($self) = @_;
392
393	$self->{random}
394	}
395
396	# this is somewhat ugly, but style maps do need special treatment
397	sub is_style_map {
398	$_[0]{path} =~ m{^/styles/}
399	}
400
401	package cf;
402		656
403	#############################################################################	657	#############################################################################
404		658
405	=head2 ATTACHABLE OBJECTS	659	=head2 ATTACHABLE OBJECTS
406		660
…		…
408	attach callbacks/event handlers (a collection of which is called an "attachment")	662	attach callbacks/event handlers (a collection of which is called an "attachment")
409	to it. All such attachable objects support the following methods.	663	to it. All such attachable objects support the following methods.
410		664
411	In the following description, CLASS can be any of C<global>, C<object>	665	In the following description, CLASS can be any of C<global>, C<object>
412	C<player>, C<client> or C<map> (i.e. the attachable objects in	666	C<player>, C<client> or C<map> (i.e. the attachable objects in
413	crossfire+).	667	Crossfire TRT).
414		668
415	=over 4	669	=over 4
416		670
417	=item $attachable->attach ($attachment, key => $value...)	671	=item $attachable->attach ($attachment, key => $value...)
418		672
…		…
532	our @CB_TYPE = (); # registry for type (cf-object class) based events	786	our @CB_TYPE = (); # registry for type (cf-object class) based events
533	our @CB_MAP = ();	787	our @CB_MAP = ();
534		788
535	my %attachment;	789	my %attachment;
536		790
		791	sub cf::attachable::thawer_merge {
		792	# simply override everything except _meta
		793	local $_[0]{_meta};
		794	%{$_[0]} = %{$_[1]};
		795	}
		796
537	sub _attach_cb($$$$) {	797	sub _attach_cb($$$$) {
538	my ($registry, $event, $prio, $cb) = @_;	798	my ($registry, $event, $prio, $cb) = @_;
539		799
540	use sort 'stable';	800	use sort 'stable';
541		801
…		…
575	$registry = $CB_TYPE[$object_type] ||= [];	835	$registry = $CB_TYPE[$object_type] ||= [];
576		836
577	} elsif ($type eq "subtype") {	837	} elsif ($type eq "subtype") {
578	defined $object_type or Carp::croak "subtype specified without type";	838	defined $object_type or Carp::croak "subtype specified without type";
579	my $object_subtype = shift @arg;	839	my $object_subtype = shift @arg;
580	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	840	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
581		841
582	} elsif ($type eq "package") {	842	} elsif ($type eq "package") {
583	my $pkg = shift @arg;	843	my $pkg = shift @arg;
584		844
585	while (my ($name, $id) = each %cb_id) {	845	while (my ($name, $id) = each %cb_id) {
…		…
614	_attach $registry, $klass, @attach;	874	_attach $registry, $klass, @attach;
615	}	875	}
616		876
617	$obj->{$name} = \%arg;	877	$obj->{$name} = \%arg;
618	} else {	878	} else {
619	warn "object uses attachment '$name' that is not available, postponing.\n";	879	warn "object uses attachment '$name' which is not available, postponing.\n";
620	}	880	}
621		881
622	$obj->{_attachment}{$name} = undef;	882	$obj->{_attachment}{$name} = undef;
623	}	883	}
624		884
…		…
626	if (ref $_[0]) {	886	if (ref $_[0]) {
627	_object_attach @_;	887	_object_attach @_;
628	} else {	888	} else {
629	_attach shift->_attach_registry, @_;	889	_attach shift->_attach_registry, @_;
630	}	890	}
		891	_recalc_want;
631	};	892	};
632		893
633	# all those should be optimised	894	# all those should be optimised
634	sub cf::attachable::detach {	895	sub cf::attachable::detach {
635	my ($obj, $name) = @_;	896	my ($obj, $name) = @_;
…		…
638	delete $obj->{_attachment}{$name};	899	delete $obj->{_attachment}{$name};
639	reattach ($obj);	900	reattach ($obj);
640	} else {	901	} else {
641	Carp::croak "cannot, currently, detach class attachments";	902	Carp::croak "cannot, currently, detach class attachments";
642	}	903	}
		904	_recalc_want;
643	};	905	};
644		906
645	sub cf::attachable::attached {	907	sub cf::attachable::attached {
646	my ($obj, $name) = @_;	908	my ($obj, $name) = @_;
647		909
…		…
662	";	924	";
663	die if $@;	925	die if $@;
664	}	926	}
665		927
666	our $override;	928	our $override;
667	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	929	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
668		930
669	sub override {	931	sub override {
670	$override = 1;	932	$override = 1;
671	@invoke_results = ();	933	@INVOKE_RESULTS = (@_);
672	}	934	}
673		935
674	sub do_invoke {	936	sub do_invoke {
675	my $event = shift;	937	my $event = shift;
676	my $callbacks = shift;	938	my $callbacks = shift;
677		939
678	@invoke_results = ();	940	@INVOKE_RESULTS = ();
679		941
680	local $override;	942	local $override;
681		943
682	for (@$callbacks) {	944	for (@$callbacks) {
683	eval { &{$_->[1]} };	945	eval { &{$_->[1]} };
…		…
700		962
701	Generate an object-specific event with the given arguments.	963	Generate an object-specific event with the given arguments.
702		964
703	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	965	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
704	removed in future versions), and there is no public API to access override	966	removed in future versions), and there is no public API to access override
705	results (if you must, access C<@cf::invoke_results> directly).	967	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
706		968
707	=back	969	=back
708		970
709	=cut	971	=cut
710		972
711	#############################################################################	973	#############################################################################
712	# object support	974	# object support
		975
		976	sub _object_equal($$);
		977	sub _object_equal($$) {
		978	my ($a, $b) = @_;
		979
		980	return 0 unless (ref $a) eq (ref $b);
		981
		982	if ("HASH" eq ref $a) {
		983	my @ka = keys %$a;
		984	my @kb = keys %$b;
		985
		986	return 0 if @ka != @kb;
		987
		988	for (0 .. $#ka) {
		989	return 0 unless $ka[$_] eq $kb[$_];
		990	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		991	}
		992
		993	} elsif ("ARRAY" eq ref $a) {
		994
		995	return 0 if @$a != @$b;
		996
		997	for (0 .. $#$a) {
		998	return 0 unless _object_equal $a->[$_], $b->[$_];
		999	}
		1000
		1001	} elsif ($a ne $b) {
		1002	return 0;
		1003	}
		1004
		1005	1
		1006	}
		1007
		1008	our $SLOW_MERGES;#d#
		1009	sub _can_merge {
		1010	my ($ob1, $ob2) = @_;
		1011
		1012	++$SLOW_MERGES;#d#
		1013
		1014	# we do the slow way here
		1015	return _object_equal $ob1, $ob2
		1016	}
713		1017
714	sub reattach {	1018	sub reattach {
715	# basically do the same as instantiate, without calling instantiate	1019	# basically do the same as instantiate, without calling instantiate
716	my ($obj) = @_;	1020	my ($obj) = @_;
		1021
		1022	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		1023
718	my $registry = $obj->registry;	1024	my $registry = $obj->registry;
719		1025
720	@$registry = ();	1026	@$registry = ();
721		1027
…		…
762	sub object_freezer_save {	1068	sub object_freezer_save {
763	my ($filename, $rdata, $objs) = @_;	1069	my ($filename, $rdata, $objs) = @_;
764		1070
765	sync_job {	1071	sync_job {
766	if (length $$rdata) {	1072	if (length $$rdata) {
		1073	utf8::decode (my $decname = $filename);
767	warn sprintf "saving %s (%d,%d)\n",	1074	warn sprintf "saving %s (%d,%d)\n",
768	$filename, length $$rdata, scalar @$objs;	1075	$decname, length $$rdata, scalar @$objs;
769		1076
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1077	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	1078	chmod SAVE_MODE, $fh;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1079	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh;	1080	aio_fsync $fh if $cf::USE_FSYNC;
774	close $fh;	1081	close $fh;
775		1082
776	if (@$objs) {	1083	if (@$objs) {
777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1084	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
778	chmod SAVE_MODE, $fh;	1085	chmod SAVE_MODE, $fh;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	1086	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	1087	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh;	1088	aio_fsync $fh if $cf::USE_FSYNC;
782	close $fh;	1089	close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	1090	aio_rename "$filename.pst~", "$filename.pst";
784	}	1091	}
785	} else {	1092	} else {
786	aio_unlink "$filename.pst";	1093	aio_unlink "$filename.pst";
…		…
792	}	1099	}
793	} else {	1100	} else {
794	aio_unlink $filename;	1101	aio_unlink $filename;
795	aio_unlink "$filename.pst";	1102	aio_unlink "$filename.pst";
796	}	1103	}
797	}	1104	};
798	}	1105	}
799		1106
800	sub object_freezer_as_string {	1107	sub object_freezer_as_string {
801	my ($rdata, $objs) = @_;	1108	my ($rdata, $objs) = @_;
802		1109
…		…
814	or return;	1121	or return;
815		1122
816	unless (aio_stat "$filename.pst") {	1123	unless (aio_stat "$filename.pst") {
817	(aio_load "$filename.pst", $av) >= 0	1124	(aio_load "$filename.pst", $av) >= 0
818	or return;	1125	or return;
		1126
819	$av = eval { (Storable::thaw $av)->{objs} };	1127	my $st = eval { Coro::Storable::thaw $av };
		1128	$av = $st->{objs};
820	}	1129	}
821		1130
		1131	utf8::decode (my $decname = $filename);
822	warn sprintf "loading %s (%d)\n",	1132	warn sprintf "loading %s (%d,%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1133	$decname, length $data, scalar @{$av || []};
		1134
824	return ($data, $av);	1135	($data, $av)
825	}	1136	}
		1137
		1138	=head2 COMMAND CALLBACKS
		1139
		1140	=over 4
		1141
		1142	=cut
826		1143
827	#############################################################################	1144	#############################################################################
828	# command handling &c	1145	# command handling &c
829		1146
830	=item cf::register_command $name => \&callback($ob,$args);	1147	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1160	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1161	}
845		1162
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1163	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1164
848	Register a callbackf ro execution when the client sends an extcmd packet.	1165	Register a callback for execution when the client sends an (synchronous)
		1166	extcmd packet. Ext commands will be processed in the order they are
		1167	received by the server, like other user commands. The first argument is
		1168	the logged-in player. Ext commands can only be processed after a player
		1169	has logged in successfully.
849		1170
850	If the callback returns something, it is sent back as if reply was being	1171	If the callback returns something, it is sent back as if reply was being
851	called.	1172	called.
852		1173
		1174	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1175
		1176	Register a callback for execution when the client sends an (asynchronous)
		1177	exticmd packet. Exti commands are processed by the server as soon as they
		1178	are received, i.e. out of order w.r.t. other commands. The first argument
		1179	is a client socket. Exti commands can be received anytime, even before
		1180	log-in.
		1181
		1182	If the callback returns something, it is sent back as if reply was being
		1183	called.
		1184
853	=cut	1185	=cut
854		1186
855	sub register_extcmd {	1187	sub register_extcmd {
856	my ($name, $cb) = @_;	1188	my ($name, $cb) = @_;
857		1189
858	my $caller = caller;
859	#warn "registering extcmd '$name' to '$caller'";
860
861	$EXTCMD{$name} = [$cb, $caller];	1190	$EXTCMD{$name} = $cb;
		1191	}
		1192
		1193	sub register_exticmd {
		1194	my ($name, $cb) = @_;
		1195
		1196	$EXTICMD{$name} = $cb;
862	}	1197	}
863		1198
864	cf::player->attach (	1199	cf::player->attach (
865	on_command => sub {	1200	on_command => sub {
866	my ($pl, $name, $params) = @_;	1201	my ($pl, $name, $params) = @_;
…		…
875	cf::override;	1210	cf::override;
876	},	1211	},
877	on_extcmd => sub {	1212	on_extcmd => sub {
878	my ($pl, $buf) = @_;	1213	my ($pl, $buf) = @_;
879		1214
880	my $msg = eval { from_json $buf };	1215	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
881		1216
882	if (ref $msg) {	1217	if (ref $msg) {
		1218	my ($type, $reply, @payload) =
		1219	"ARRAY" eq ref $msg
		1220	? @$msg
		1221	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1222
		1223	my @reply;
		1224
883	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1225	if (my $cb = $EXTCMD{$type}) {
884	if (my %reply = $cb->[0]->($pl, $msg)) {	1226	@reply = $cb->($pl, @payload);
885	$pl->ext_reply ($msg->{msgid}, %reply);
886	}
887	}	1227	}
		1228
		1229	$pl->ext_reply ($reply, @reply)
		1230	if $reply;
		1231
888	} else {	1232	} else {
889	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1233	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
890	}	1234	}
891		1235
892	cf::override;	1236	cf::override;
893	},	1237	},
894	);	1238	);
895		1239
896	sub register {
897	my ($base, $pkg) = @_;
898
899	#TODO
900	}
901
902	sub load_extension {	1240	sub load_extensions {
		1241	cf::sync_job {
		1242	my %todo;
		1243
		1244	for my $path (<$LIBDIR/*.ext>) {
		1245	next unless -r $path;
		1246
		1247	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1248	my $base = $1;
		1249	my $pkg = $1;
		1250	$pkg =~ s/[^[:word:]]/_/g;
		1251	$pkg = "ext::$pkg";
		1252
		1253	open my $fh, "<:utf8", $path
		1254	or die "$path: $!";
		1255
		1256	my $source = do { local $/; <$fh> };
		1257
		1258	my %ext = (
		1259	path => $path,
		1260	base => $base,
		1261	pkg => $pkg,
		1262	);
		1263
		1264	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1265	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1266
		1267	$ext{source} =
		1268	"package $pkg; use strict; use utf8;\n"
		1269	. "#line 1 \"$path\"\n{\n"
		1270	. $source
		1271	. "\n};\n1";
		1272
		1273	$todo{$base} = \%ext;
		1274	}
		1275
		1276	my %done;
		1277	while (%todo) {
		1278	my $progress;
		1279
		1280	while (my ($k, $v) = each %todo) {
		1281	for (split /,\s*/, $v->{meta}{depends}) {
		1282	goto skip
		1283	unless exists $done{$_};
		1284	}
		1285
		1286	warn "... loading '$k' into '$v->{pkg}'\n";
		1287
		1288	unless (eval $v->{source}) {
		1289	my $msg = $@ ? "$v->{path}: $@\n"
		1290	: "$v->{base}: extension inactive.\n";
		1291
		1292	if (exists $v->{meta}{mandatory}) {
		1293	warn $msg;
		1294	warn "mandatory extension failed to load, exiting.\n";
		1295	exit 1;
		1296	}
		1297
		1298	warn $msg;
		1299	}
		1300
		1301	$done{$k} = delete $todo{$k};
		1302	push @EXTS, $v->{pkg};
		1303	$progress = 1;
		1304	}
		1305
		1306	skip:
		1307	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1308	unless $progress;
		1309	}
		1310	};
		1311	}
		1312
		1313	#############################################################################
		1314
		1315	=back
		1316
		1317	=head2 CORE EXTENSIONS
		1318
		1319	Functions and methods that extend core crossfire objects.
		1320
		1321	=cut
		1322
		1323	package cf::player;
		1324
		1325	use Coro::AIO;
		1326
		1327	=head3 cf::player
		1328
		1329	=over 4
		1330
		1331	=item cf::player::num_playing
		1332
		1333	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1334
		1335	=cut
		1336
		1337	sub num_playing {
		1338	scalar grep
		1339	$_->ob->map
		1340	&& !$_->hidden
		1341	&& !$_->ob->flag (cf::FLAG_WIZ),
		1342	cf::player::list
		1343	}
		1344
		1345	=item cf::player::find $login
		1346
		1347	Returns the given player object, loading it if necessary (might block).
		1348
		1349	=cut
		1350
		1351	sub playerdir($) {
		1352	"$PLAYERDIR/"
		1353	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1354	}
		1355
		1356	sub path($) {
		1357	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1358
		1359	(playerdir $login) . "/playerdata"
		1360	}
		1361
		1362	sub find_active($) {
		1363	$cf::PLAYER{$_[0]}
		1364	and $cf::PLAYER{$_[0]}->active
		1365	and $cf::PLAYER{$_[0]}
		1366	}
		1367
		1368	sub exists($) {
		1369	my ($login) = @_;
		1370
		1371	$cf::PLAYER{$login}
		1372	or cf::sync_job { !aio_stat path $login }
		1373	}
		1374
		1375	sub find($) {
		1376	return $cf::PLAYER{$_[0]} || do {
		1377	my $login = $_[0];
		1378
		1379	my $guard = cf::lock_acquire "user_find:$login";
		1380
		1381	$cf::PLAYER{$_[0]} || do {
		1382	# rename old playerfiles to new ones
		1383	#TODO: remove when no longer required
		1384	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1385	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1386	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1387	aio_unlink +(playerdir $login) . "/$login.pl";
		1388
		1389	my $f = new_from_file cf::object::thawer path $login
		1390	or return;
		1391
		1392	my $pl = cf::player::load_pl $f
		1393	or return;
		1394	local $cf::PLAYER_LOADING{$login} = $pl;
		1395	$f->resolve_delayed_derefs;
		1396	$cf::PLAYER{$login} = $pl
		1397	}
		1398	}
		1399	}
		1400
		1401	sub save($) {
		1402	my ($pl) = @_;
		1403
		1404	return if $pl->{deny_save};
		1405
		1406	my $path = path $pl;
		1407	my $guard = cf::lock_acquire "user_save:$path";
		1408
		1409	return if $pl->{deny_save};
		1410
		1411	aio_mkdir playerdir $pl, 0770;
		1412	$pl->{last_save} = $cf::RUNTIME;
		1413
		1414	$pl->save_pl ($path);
		1415	cf::cede_to_tick;
		1416	}
		1417
		1418	sub new($) {
		1419	my ($login) = @_;
		1420
		1421	my $self = create;
		1422
		1423	$self->ob->name ($login);
		1424	$self->{deny_save} = 1;
		1425
		1426	$cf::PLAYER{$login} = $self;
		1427
		1428	$self
		1429	}
		1430
		1431	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1432
		1433	=cut
		1434
		1435	sub send_msg {
		1436	my $ns = shift->ns
		1437	or return;
		1438	$ns->send_msg (@_);
		1439	}
		1440
		1441	=item $pl->quit_character
		1442
		1443	Nukes the player without looking back. If logged in, the connection will
		1444	be destroyed. May block for a long time.
		1445
		1446	=cut
		1447
		1448	sub quit_character {
		1449	my ($pl) = @_;
		1450
		1451	my $name = $pl->ob->name;
		1452
		1453	$pl->{deny_save} = 1;
		1454	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1455
		1456	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1457	$pl->deactivate;
		1458	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1459	$pl->ns->destroy if $pl->ns;
		1460
		1461	my $path = playerdir $pl;
		1462	my $temp = "$path~$cf::RUNTIME~deleting~";
		1463	aio_rename $path, $temp;
		1464	delete $cf::PLAYER{$pl->ob->name};
		1465	$pl->destroy;
		1466
		1467	my $prefix = qr<^~\Q$name\E/>;
		1468
		1469	# nuke player maps
		1470	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1471
		1472	IO::AIO::aio_rmtree $temp;
		1473	}
		1474
		1475	=item $pl->kick
		1476
		1477	Kicks a player out of the game. This destroys the connection.
		1478
		1479	=cut
		1480
		1481	sub kick {
		1482	my ($pl, $kicker) = @_;
		1483
		1484	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1485	$pl->killer ("kicked");
		1486	$pl->ns->destroy;
		1487	}
		1488
		1489	=item cf::player::list_logins
		1490
		1491	Returns am arrayref of all valid playernames in the system, can take a
		1492	while and may block, so not sync_job-capable, ever.
		1493
		1494	=cut
		1495
		1496	sub list_logins {
		1497	my $dirs = aio_readdir $PLAYERDIR
		1498	or return [];
		1499
		1500	my @logins;
		1501
		1502	for my $login (@$dirs) {
		1503	my $path = path $login;
		1504
		1505	# a .pst is a dead give-away for a valid player
		1506	unless (-e "$path.pst") {
		1507	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1508	aio_read $fh, 0, 512, my $buf, 0 or next;
		1509	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1510	}
		1511
		1512	utf8::decode $login;
		1513	push @logins, $login;
		1514	}
		1515
		1516	\@logins
		1517	}
		1518
		1519	=item $player->maps
		1520
		1521	Returns an arrayref of map paths that are private for this
		1522	player. May block.
		1523
		1524	=cut
		1525
		1526	sub maps($) {
		1527	my ($pl) = @_;
		1528
		1529	$pl = ref $pl ? $pl->ob->name : $pl;
		1530
		1531	my $files = aio_readdir playerdir $pl
		1532	or return;
		1533
		1534	my @paths;
		1535
		1536	for (@$files) {
		1537	utf8::decode $_;
		1538	next if /\.(?:pl|pst)$/;
		1539	next unless /^$PATH_SEP/o;
		1540
		1541	push @paths, cf::map::normalise "~$pl/$_";
		1542	}
		1543
		1544	\@paths
		1545	}
		1546
		1547	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1548
		1549	Expand crossfire pod fragments into protocol xml.
		1550
		1551	=cut
		1552
		1553	sub expand_cfpod {
		1554	((my $self), (local $_)) = @_;
		1555
		1556	# escape & and <
		1557	s/&/&amp;/g;
		1558	s/(?<![BIUGHT])</&lt;/g;
		1559
		1560	# this is buggy, it needs to properly take care of nested <'s
		1561
		1562	1 while
		1563	# replace B<>, I<>, U<> etc.
		1564	s/B<([^\>]*)>/<b>$1<\/b>/
		1565	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1566	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1567	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1568	# replace G<male|female> tags
		1569	|| s{G<([^>|]*)\|([^>]*)>}{
		1570	$self->gender ? $2 : $1
		1571	}ge
		1572	# replace H<hint text>
		1573	|| s{H<([^\>]*)>}
		1574	{
		1575	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1576	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1577	"")
		1578	[$self->{hintmode}]
		1579	}ge;
		1580
		1581	# create single paragraphs (very hackish)
		1582	s/(?<=\S)\n(?=\w)/ /g;
		1583
		1584	# compress some whitespace
		1585	s/\s+\n/\n/g; # ws line-ends
		1586	s/\n\n+/\n/g; # double lines
		1587	s/^\n+//; # beginning lines
		1588	s/\n+$//; # ending lines
		1589
		1590	$_
		1591	}
		1592
		1593	sub hintmode {
		1594	$_[0]{hintmode} = $_[1] if @_ > 1;
		1595	$_[0]{hintmode}
		1596	}
		1597
		1598	=item $player->ext_reply ($msgid, @msg)
		1599
		1600	Sends an ext reply to the player.
		1601
		1602	=cut
		1603
		1604	sub ext_reply($$@) {
		1605	my ($self, $id, @msg) = @_;
		1606
		1607	$self->ns->ext_reply ($id, @msg)
		1608	}
		1609
		1610	=item $player->ext_msg ($type, @msg)
		1611
		1612	Sends an ext event to the client.
		1613
		1614	=cut
		1615
		1616	sub ext_msg($$@) {
		1617	my ($self, $type, @msg) = @_;
		1618
		1619	$self->ns->ext_msg ($type, @msg);
		1620	}
		1621
		1622	=head3 cf::region
		1623
		1624	=over 4
		1625
		1626	=cut
		1627
		1628	package cf::region;
		1629
		1630	=item cf::region::find_by_path $path
		1631
		1632	Tries to decuce the likely region for a map knowing only its path.
		1633
		1634	=cut
		1635
		1636	sub find_by_path($) {
903	my ($path) = @_;	1637	my ($path) = @_;
904		1638
905	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1639	my ($match, $specificity);
906	my $base = $1;
907	my $pkg = $1;
908	$pkg =~ s/[^[:word:]]/_/g;
909	$pkg = "ext::$pkg";
910		1640
911	warn "loading '$path' into '$pkg'\n";	1641	for my $region (list) {
912		1642	if ($region->{match} && $path =~ $region->{match}) {
913	open my $fh, "<:utf8", $path	1643	($match, $specificity) = ($region, $region->specificity)
914	or die "$path: $!";	1644	if $region->specificity > $specificity;
915		1645	}
916	my $source =
917	"package $pkg; use strict; use utf8;\n"
918	. "#line 1 \"$path\"\n{\n"
919	. (do { local $/; <$fh> })
920	. "\n};\n1";
921
922	eval $source
923	or die $@ ? "$path: $@\n"
924	: "extension disabled.\n";
925
926	push @exts, $pkg;
927	$ext_pkg{$base} = $pkg;
928
929	# no strict 'refs';
930	# @{"$pkg\::ISA"} = ext::;
931
932	register $base, $pkg;
933	}
934
935	sub unload_extension {
936	my ($pkg) = @_;
937
938	warn "removing extension $pkg\n";
939
940	# remove hooks
941	#TODO
942	# for my $idx (0 .. $#PLUGIN_EVENT) {
943	# delete $hook[$idx]{$pkg};
944	# }	1646	}
945		1647
946	# remove commands	1648	$match
947	for my $name (keys %COMMAND) {
948	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
949
950	if (@cb) {
951	$COMMAND{$name} = \@cb;
952	} else {
953	delete $COMMAND{$name};
954	}
955	}
956
957	# remove extcmds
958	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
959	delete $EXTCMD{$name};
960	}
961
962	if (my $cb = $pkg->can ("unload")) {
963	eval {
964	$cb->($pkg);
965	1
966	} or warn "$pkg unloaded, but with errors: $@";
967	}
968
969	Symbol::delete_package $pkg;
970	}
971
972	sub load_extensions {
973	for my $ext (<$LIBDIR/*.ext>) {
974	next unless -r $ext;
975	eval {
976	load_extension $ext;
977	1
978	} or warn "$ext not loaded: $@";
979	}
980	}
981
982	#############################################################################
983	# load/save/clean perl data associated with a map
984
985	*cf::mapsupport::on_clean = sub {
986	my ($map) = @_;
987
988	my $path = $map->tmpname;
989	defined $path or return;
990
991	unlink "$path.pst";
992	};
993
994	cf::map->attach (prio => -10000, package => cf::mapsupport::);
995
996	#############################################################################
997	# load/save perl data associated with player->ob objects
998
999	sub all_objects(@) {
1000	@_, map all_objects ($_->inv), @_
1001	}
1002
1003	# TODO: compatibility cruft, remove when no longer needed
1004	cf::player->attach (
1005	on_load => sub {
1006	my ($pl, $path) = @_;
1007
1008	for my $o (all_objects $pl->ob) {
1009	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1010	$o->set_ob_key_value ("_perl_data");
1011
1012	%$o = %{ Storable::thaw pack "H*", $value };
1013	}
1014	}
1015	},
1016	);
1017
1018	#############################################################################
1019
1020	=head2 CORE EXTENSIONS
1021
1022	Functions and methods that extend core crossfire objects.
1023
1024	=head3 cf::player
1025
1026	=over 4
1027
1028	=item cf::player::exists $login
1029
1030	Returns true when the given account exists.
1031
1032	=cut
1033
1034	sub cf::player::exists($) {
1035	cf::player::find $_[0]
1036	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1037	}
1038
1039	=item $player->ext_reply ($msgid, $msgtype, %msg)
1040
1041	Sends an ext reply to the player.
1042
1043	=cut
1044
1045	sub cf::player::ext_reply($$$%) {
1046	my ($self, $id, %msg) = @_;
1047
1048	$msg{msgid} = $id;
1049
1050	$self->send ("ext " . to_json \%msg);
1051	}	1649	}
1052		1650
1053	=back	1651	=back
1054
1055		1652
1056	=head3 cf::map	1653	=head3 cf::map
1057		1654
1058	=over 4	1655	=over 4
1059		1656
…		…
1062	package cf::map;	1659	package cf::map;
1063		1660
1064	use Fcntl;	1661	use Fcntl;
1065	use Coro::AIO;	1662	use Coro::AIO;
1066		1663
		1664	use overload
		1665	'""' => \&as_string,
		1666	fallback => 1;
		1667
1067	our $MAX_RESET = 7200;	1668	our $MAX_RESET = 3600;
1068	our $DEFAULT_RESET = 3600;	1669	our $DEFAULT_RESET = 3000;
1069		1670
1070	sub generate_random_map {	1671	sub generate_random_map {
1071	my ($path, $rmp) = @_;	1672	my ($self, $rmp) = @_;
1072
1073	# mit "rum" bekleckern, nicht	1673	# mit "rum" bekleckern, nicht
1074	cf::map::_create_random_map	1674	$self->_create_random_map (
1075	$path,
1076	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1675	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1077	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1676	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1078	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1677	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1079	$rmp->{exit_on_final_map},	1678	$rmp->{exit_on_final_map},
1080	$rmp->{xsize}, $rmp->{ysize},	1679	$rmp->{xsize}, $rmp->{ysize},
1081	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1680	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1082	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1681	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1083	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1682	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1084	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1683	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1085	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1684	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1086	(cf::region::find $rmp->{region})	1685	(cf::region::find $rmp->{region}), $rmp->{custom}
		1686	)
		1687	}
		1688
		1689	=item cf::map->register ($regex, $prio)
		1690
		1691	Register a handler for the map path matching the given regex at the
		1692	givne priority (higher is better, built-in handlers have priority 0, the
		1693	default).
		1694
		1695	=cut
		1696
		1697	sub register {
		1698	my (undef, $regex, $prio) = @_;
		1699	my $pkg = caller;
		1700
		1701	no strict;
		1702	push @{"$pkg\::ISA"}, __PACKAGE__;
		1703
		1704	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1705	}
		1706
		1707	# also paths starting with '/'
		1708	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1709
		1710	sub thawer_merge {
		1711	my ($self, $merge) = @_;
		1712
		1713	# we have to keep some variables in memory intact
		1714	local $self->{path};
		1715	local $self->{load_path};
		1716
		1717	$self->SUPER::thawer_merge ($merge);
		1718	}
		1719
		1720	sub normalise {
		1721	my ($path, $base) = @_;
		1722
		1723	$path = "$path"; # make sure its a string
		1724
		1725	$path =~ s/\.map$//;
		1726
		1727	# map plan:
		1728	#
		1729	# /! non-realised random map exit (special hack!)
		1730	# {... are special paths that are not being touched
		1731	# ?xxx/... are special absolute paths
		1732	# ?random/... random maps
		1733	# /... normal maps
		1734	# ~user/... per-player map of a specific user
		1735
		1736	$path =~ s/$PATH_SEP/\//go;
		1737
		1738	# treat it as relative path if it starts with
		1739	# something that looks reasonable
		1740	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1741	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1742
		1743	$base =~ s{[^/]+/?$}{};
		1744	$path = "$base/$path";
		1745	}
		1746
		1747	for ($path) {
		1748	redo if s{//}{/};
		1749	redo if s{/\.?/}{/};
		1750	redo if s{/[^/]+/\.\./}{/};
		1751	}
		1752
		1753	$path
		1754	}
		1755
		1756	sub new_from_path {
		1757	my (undef, $path, $base) = @_;
		1758
		1759	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1760
		1761	$path = normalise $path, $base;
		1762
		1763	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1764	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1765	my $self = bless cf::map::new, $pkg;
		1766	$self->{path} = $path; $self->path ($path);
		1767	$self->init; # pass $1 etc.
		1768	return $self;
		1769	}
		1770	}
		1771
		1772	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1773	()
		1774	}
		1775
		1776	sub init {
		1777	my ($self) = @_;
		1778
		1779	$self
		1780	}
		1781
		1782	sub as_string {
		1783	my ($self) = @_;
		1784
		1785	"$self->{path}"
		1786	}
		1787
		1788	# the displayed name, this is a one way mapping
		1789	sub visible_name {
		1790	&as_string
		1791	}
		1792
		1793	# the original (read-only) location
		1794	sub load_path {
		1795	my ($self) = @_;
		1796
		1797	"$MAPDIR/$self->{path}.map"
		1798	}
		1799
		1800	# the temporary/swap location
		1801	sub save_path {
		1802	my ($self) = @_;
		1803
		1804	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1805	"$TMPDIR/$path.map"
		1806	}
		1807
		1808	# the unique path, undef == no special unique path
		1809	sub uniq_path {
		1810	my ($self) = @_;
		1811
		1812	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1813	"$UNIQUEDIR/$path"
1087	}	1814	}
1088		1815
1089	# and all this just because we cannot iterate over	1816	# and all this just because we cannot iterate over
1090	# all maps in C++...	1817	# all maps in C++...
1091	sub change_all_map_light {	1818	sub change_all_map_light {
1092	my ($change) = @_;	1819	my ($change) = @_;
1093		1820
1094	$_->change_map_light ($change) for values %cf::MAP;	1821	$_->change_map_light ($change)
		1822	for grep $_->outdoor, values %cf::MAP;
1095	}	1823	}
1096		1824
		1825	sub decay_objects {
		1826	my ($self) = @_;
		1827
		1828	return if $self->{deny_reset};
		1829
		1830	$self->do_decay_objects;
		1831	}
		1832
		1833	sub unlink_save {
		1834	my ($self) = @_;
		1835
		1836	utf8::encode (my $save = $self->save_path);
		1837	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1838	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1839	}
		1840
1097	sub try_load_header($) {	1841	sub load_header_from($) {
1098	my ($path) = @_;	1842	my ($self, $path) = @_;
1099		1843
1100	utf8::encode $path;	1844	utf8::encode $path;
1101	aio_open $path, O_RDONLY, 0	1845	my $f = new_from_file cf::object::thawer $path
1102	or return;	1846	or return;
1103		1847
1104	my $map = cf::map::new	1848	$self->_load_header ($f)
1105	or return;	1849	or return;
1106		1850
1107	$map->load_header ($path)	1851	local $MAP_LOADING{$self->{path}} = $self;
		1852	$f->resolve_delayed_derefs;
		1853
		1854	$self->{load_path} = $path;
		1855
		1856	1
		1857	}
		1858
		1859	sub load_header_orig {
		1860	my ($self) = @_;
		1861
		1862	$self->load_header_from ($self->load_path)
		1863	}
		1864
		1865	sub load_header_temp {
		1866	my ($self) = @_;
		1867
		1868	$self->load_header_from ($self->save_path)
		1869	}
		1870
		1871	sub prepare_temp {
		1872	my ($self) = @_;
		1873
		1874	$self->last_access ((delete $self->{last_access})
		1875	|| $cf::RUNTIME); #d#
		1876	# safety
		1877	$self->{instantiate_time} = $cf::RUNTIME
		1878	if $self->{instantiate_time} > $cf::RUNTIME;
		1879	}
		1880
		1881	sub prepare_orig {
		1882	my ($self) = @_;
		1883
		1884	$self->{load_original} = 1;
		1885	$self->{instantiate_time} = $cf::RUNTIME;
		1886	$self->last_access ($cf::RUNTIME);
		1887	$self->instantiate;
		1888	}
		1889
		1890	sub load_header {
		1891	my ($self) = @_;
		1892
		1893	if ($self->load_header_temp) {
		1894	$self->prepare_temp;
		1895	} else {
		1896	$self->load_header_orig
1108	or return;	1897	or return;
		1898	$self->prepare_orig;
		1899	}
1109		1900
1110	$map->{load_path} = $path;	1901	$self->{deny_reset} = 1
		1902	if $self->no_reset;
1111		1903
1112	$map	1904	$self->default_region (cf::region::find_by_path $self->{path})
1113	}	1905	unless $self->default_region;
1114		1906
		1907	1
		1908	}
		1909
		1910	sub find;
1115	sub find_map {	1911	sub find {
1116	my ($path, $origin) = @_;	1912	my ($path, $origin) = @_;
1117		1913
1118	#warn "find_map<$path,$origin>\n";#d#
1119
1120	$path = new cf::path $path, $origin && $origin->path;	1914	$path = normalise $path, $origin && $origin->path;
1121	my $key = $path->as_string;
1122		1915
		1916	cf::lock_wait "map_data:$path";#d#remove
		1917	cf::lock_wait "map_find:$path";
		1918
1123	$cf::MAP{$key} || do {	1919	$cf::MAP{$path} || do {
1124	# do it the slow way	1920	my $guard1 = cf::lock_acquire "map_find:$path";
1125	my $map = try_load_header $path->save_path;	1921	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1126		1922
1127	if ($map) {	1923	my $map = new_from_path cf::map $path
1128	# safety
1129	$map->{instantiate_time} = $cf::RUNTIME
1130	if $map->{instantiate_time} > $cf::RUNTIME;
1131	} else {
1132	if (my $rmp = $path->random_map_params) {
1133	$map = generate_random_map $key, $rmp;
1134	} else {
1135	$map = try_load_header $path->load_path;
1136	}
1137
1138	$map or return;	1924	or return;
1139		1925
1140	$map->{load_original} = 1;
1141	$map->{instantiate_time} = $cf::RUNTIME;
1142	$map->instantiate;
1143
1144	# per-player maps become, after loading, normal maps
1145	$map->per_player (0) if $path->{user_rel};
1146	}
1147	#Coro::Timer::sleep 1;#d#
1148
1149	$map->path ($key);
1150	$map->{path} = $path;
1151	$map->{last_save} = $cf::RUNTIME;	1926	$map->{last_save} = $cf::RUNTIME;
1152	$map->last_access ($cf::RUNTIME);
1153		1927
1154	if ($map->should_reset) {	1928	$map->load_header
		1929	or return;
		1930
		1931	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1932	# doing this can freeze the server in a sync job, obviously
		1933	#$cf::WAIT_FOR_TICK->wait;
		1934	undef $guard1;
		1935	undef $guard2;
1155	$map->reset;	1936	$map->reset;
1156	$map = find_map $path;	1937	return find $path;
1157	}	1938	}
1158		1939
1159	$cf::MAP{$key} = $map	1940	$cf::MAP{$path} = $map
1160	}	1941	}
1161	}	1942	}
		1943
		1944	sub pre_load { }
		1945	sub post_load { }
1162		1946
1163	sub load {	1947	sub load {
1164	my ($self) = @_;	1948	my ($self) = @_;
1165		1949
1166	return if $self->in_memory != cf::MAP_SWAPPED;	1950	local $self->{deny_reset} = 1; # loading can take a long time
1167
1168	$self->in_memory (cf::MAP_LOADING);
1169		1951
1170	my $path = $self->{path};	1952	my $path = $self->{path};
1171		1953
		1954	{
		1955	my $guard = cf::lock_acquire "map_data:$path";
		1956
		1957	return unless $self->valid;
		1958	return unless $self->in_memory == cf::MAP_SWAPPED;
		1959
		1960	$self->in_memory (cf::MAP_LOADING);
		1961
1172	$self->alloc;	1962	$self->alloc;
1173	$self->load_objects ($self->{load_path}, 1)	1963
		1964	$self->pre_load;
		1965	cf::cede_to_tick;
		1966
		1967	my $f = new_from_file cf::object::thawer $self->{load_path};
		1968	$f->skip_block;
		1969	$self->_load_objects ($f)
1174	or return;	1970	or return;
1175		1971
1176	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1972	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1177	if delete $self->{load_original};	1973	if delete $self->{load_original};
1178		1974
1179	if (my $uniq = $path->uniq_path) {	1975	if (my $uniq = $self->uniq_path) {
1180	utf8::encode $uniq;	1976	utf8::encode $uniq;
1181	if (aio_open $uniq, O_RDONLY, 0) {	1977	unless (aio_stat $uniq) {
		1978	if (my $f = new_from_file cf::object::thawer $uniq) {
1182	$self->clear_unique_items;	1979	$self->clear_unique_items;
1183	$self->load_objects ($uniq, 0);	1980	$self->_load_objects ($f);
		1981	$f->resolve_delayed_derefs;
		1982	}
1184	}	1983	}
1185	}	1984	}
1186		1985
		1986	$f->resolve_delayed_derefs;
		1987
		1988	cf::cede_to_tick;
1187	# now do the right thing for maps	1989	# now do the right thing for maps
1188	$self->link_multipart_objects;	1990	$self->link_multipart_objects;
1189
1190	if ($self->{path}->is_style_map) {
1191	$self->{deny_save} = 1;
1192	$self->{deny_reset} = 1;
1193	} else {
1194	$self->fix_auto_apply;
1195	$self->decay_objects;
1196	$self->update_buttons;
1197	$self->set_darkness_map;
1198	$self->difficulty ($self->estimate_difficulty)	1991	$self->difficulty ($self->estimate_difficulty)
1199	unless $self->difficulty;	1992	unless $self->difficulty;
		1993	cf::cede_to_tick;
		1994
		1995	unless ($self->{deny_activate}) {
		1996	$self->decay_objects;
		1997	$self->fix_auto_apply;
		1998	$self->update_buttons;
		1999	cf::cede_to_tick;
		2000	$self->set_darkness_map;
		2001	cf::cede_to_tick;
1200	$self->activate;	2002	$self->activate;
1201	}	2003	}
1202		2004
		2005	$self->{last_save} = $cf::RUNTIME;
		2006	$self->last_access ($cf::RUNTIME);
		2007
1203	$self->in_memory (cf::MAP_IN_MEMORY);	2008	$self->in_memory (cf::MAP_IN_MEMORY);
1204	}	2009	}
1205		2010
1206	sub load_map_sync {	2011	$self->post_load;
		2012	}
		2013
		2014	sub customise_for {
		2015	my ($self, $ob) = @_;
		2016
		2017	return find "~" . $ob->name . "/" . $self->{path}
		2018	if $self->per_player;
		2019
		2020	# return find "?party/" . $ob->name . "/" . $self->{path}
		2021	# if $self->per_party;
		2022
		2023	$self
		2024	}
		2025
		2026	# find and load all maps in the 3x3 area around a map
		2027	sub load_neighbours {
		2028	my ($map) = @_;
		2029
		2030	my @neigh; # diagonal neighbours
		2031
		2032	for (0 .. 3) {
		2033	my $neigh = $map->tile_path ($_)
		2034	or next;
		2035	$neigh = find $neigh, $map
		2036	or next;
		2037	$neigh->load;
		2038
		2039	push @neigh,
		2040	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2041	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2042	}
		2043
		2044	for (grep defined $_->[0], @neigh) {
		2045	my ($path, $origin) = @$_;
		2046	my $neigh = find $path, $origin
		2047	or next;
		2048	$neigh->load;
		2049	}
		2050	}
		2051
		2052	sub find_sync {
1207	my ($path, $origin) = @_;	2053	my ($path, $origin) = @_;
1208		2054
1209	#warn "load_map_sync<$path, $origin>\n";#d#	2055	cf::sync_job { find $path, $origin }
		2056	}
1210		2057
1211	cf::sync_job {	2058	sub do_load_sync {
1212	my $map = cf::map::find_map $path, $origin	2059	my ($map) = @_;
1213	or return;	2060
1214	$map->load;	2061	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1215	$map	2062	if $Coro::current == $Coro::main;
		2063
		2064	cf::sync_job { $map->load };
		2065	}
		2066
		2067	our %MAP_PREFETCH;
		2068	our $MAP_PREFETCHER = undef;
		2069
		2070	sub find_async {
		2071	my ($path, $origin, $load) = @_;
		2072
		2073	$path = normalise $path, $origin && $origin->{path};
		2074
		2075	if (my $map = $cf::MAP{$path}) {
		2076	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2077	}
		2078
		2079	$MAP_PREFETCH{$path} |= $load;
		2080
		2081	$MAP_PREFETCHER ||= cf::async {
		2082	$Coro::current->{desc} = "map prefetcher";
		2083
		2084	while (%MAP_PREFETCH) {
		2085	while (my ($k, $v) = each %MAP_PREFETCH) {
		2086	if (my $map = find $k) {
		2087	$map->load if $v;
		2088	}
		2089
		2090	delete $MAP_PREFETCH{$k};
		2091	}
		2092	}
		2093	undef $MAP_PREFETCHER;
1216	}	2094	};
		2095	$MAP_PREFETCHER->prio (6);
		2096
		2097	()
1217	}	2098	}
1218		2099
1219	sub save {	2100	sub save {
1220	my ($self) = @_;	2101	my ($self) = @_;
1221		2102
		2103	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2104
1222	$self->{last_save} = $cf::RUNTIME;	2105	$self->{last_save} = $cf::RUNTIME;
1223		2106
1224	return unless $self->dirty;	2107	return unless $self->dirty;
1225		2108
1226	my $save = $self->{path}->save_path; utf8::encode $save;	2109	my $save = $self->save_path; utf8::encode $save;
1227	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2110	my $uniq = $self->uniq_path; utf8::encode $uniq;
1228		2111
1229	$self->{load_path} = $save;	2112	$self->{load_path} = $save;
1230		2113
1231	return if $self->{deny_save};	2114	return if $self->{deny_save};
1232		2115
		2116	local $self->{last_access} = $self->last_access;#d#
		2117
		2118	cf::async {
		2119	$Coro::current->{desc} = "map player save";
		2120	$_->contr->save for $self->players;
		2121	};
		2122
1233	if ($uniq) {	2123	if ($uniq) {
1234	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2124	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1235	$self->save_objects ($uniq, cf::IO_UNIQUES);	2125	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1236	} else {	2126	} else {
1237	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2127	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1238	}	2128	}
1239	}	2129	}
1240		2130
1241	sub swap_out {	2131	sub swap_out {
1242	my ($self) = @_;	2132	my ($self) = @_;
		2133
		2134	# save first because save cedes
		2135	$self->save;
		2136
		2137	my $lock = cf::lock_acquire "map_data:$self->{path}";
1243		2138
1244	return if $self->players;	2139	return if $self->players;
1245	return if $self->in_memory != cf::MAP_IN_MEMORY;	2140	return if $self->in_memory != cf::MAP_IN_MEMORY;
1246	return if $self->{deny_save};	2141	return if $self->{deny_save};
1247		2142
		2143	$self->in_memory (cf::MAP_SWAPPED);
		2144
1248	$self->save;	2145	$self->deactivate;
		2146	$_->clear_links_to ($self) for values %cf::MAP;
1249	$self->clear;	2147	$self->clear;
1250	$self->in_memory (cf::MAP_SWAPPED);
1251	}	2148	}
1252		2149
1253	sub reset_at {	2150	sub reset_at {
1254	my ($self) = @_;	2151	my ($self) = @_;
1255		2152
1256	# TODO: safety, remove and allow resettable per-player maps	2153	# TODO: safety, remove and allow resettable per-player maps
1257	return 1e99 if $self->{path}{user_rel};
1258	return 1e99 if $self->{deny_reset};	2154	return 1e99 if $self->{deny_reset};
1259		2155
1260	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2156	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1261	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2157	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1262		2158
…		…
1267	my ($self) = @_;	2163	my ($self) = @_;
1268		2164
1269	$self->reset_at <= $cf::RUNTIME	2165	$self->reset_at <= $cf::RUNTIME
1270	}	2166	}
1271		2167
1272	sub unlink_save {
1273	my ($self) = @_;
1274
1275	utf8::encode (my $save = $self->{path}->save_path);
1276	aioreq_pri 3; IO::AIO::aio_unlink $save;
1277	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1278	}
1279
1280	sub rename {
1281	my ($self, $new_path) = @_;
1282
1283	$self->unlink_save;
1284
1285	delete $cf::MAP{$self->path};
1286	$self->{path} = new cf::path $new_path;
1287	$self->path ($self->{path}->as_string);
1288	$cf::MAP{$self->path} = $self;
1289
1290	$self->save;
1291	}
1292
1293	sub reset {	2168	sub reset {
1294	my ($self) = @_;	2169	my ($self) = @_;
1295		2170
		2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2172
1296	return if $self->players;	2173	return if $self->players;
1297	return if $self->{path}{user_rel};#d#
1298		2174
1299	warn "resetting map ", $self->path;#d#	2175	warn "resetting map ", $self->path;
		2176
		2177	$self->in_memory (cf::MAP_SWAPPED);
		2178
		2179	# need to save uniques path
		2180	unless ($self->{deny_save}) {
		2181	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2182
		2183	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2184	if $uniq;
		2185	}
1300		2186
1301	delete $cf::MAP{$self->path};	2187	delete $cf::MAP{$self->path};
1302		2188
		2189	$self->deactivate;
1303	$_->clear_links_to ($self) for values %cf::MAP;	2190	$_->clear_links_to ($self) for values %cf::MAP;
		2191	$self->clear;
1304		2192
1305	$self->unlink_save;	2193	$self->unlink_save;
1306	$self->destroy;	2194	$self->destroy;
1307	}	2195	}
1308		2196
1309	my $nuke_counter = "aaaa";	2197	my $nuke_counter = "aaaa";
1310		2198
1311	sub nuke {	2199	sub nuke {
1312	my ($self) = @_;	2200	my ($self) = @_;
1313		2201
		2202	{
		2203	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2204
		2205	delete $cf::MAP{$self->path};
		2206
		2207	$self->unlink_save;
		2208
		2209	bless $self, "cf::map";
		2210	delete $self->{deny_reset};
1314	$self->{deny_save} = 1;	2211	$self->{deny_save} = 1;
1315	$self->reset_timeout (1);	2212	$self->reset_timeout (1);
1316	$self->rename ("{nuke}/" . ($nuke_counter++));	2213	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2214
		2215	$cf::MAP{$self->path} = $self;
		2216	}
		2217
1317	$self->reset; # polite request, might not happen	2218	$self->reset; # polite request, might not happen
1318	}	2219	}
1319		2220
1320	sub customise_for {	2221	=item $maps = cf::map::tmp_maps
1321	my ($map, $ob) = @_;
1322		2222
1323	if ($map->per_player) {	2223	Returns an arrayref with all map paths of currently instantiated and saved
1324	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2224	maps. May block.
		2225
		2226	=cut
		2227
		2228	sub tmp_maps() {
1325	}	2229	[
1326		2230	map {
1327	$map	2231	utf8::decode $_;
		2232	/\.map$/
		2233	? normalise $_
		2234	: ()
		2235	} @{ aio_readdir $TMPDIR or [] }
		2236	]
1328	}	2237	}
1329		2238
1330	sub emergency_save {	2239	=item $maps = cf::map::random_maps
1331	local $cf::FREEZE = 1;
1332		2240
1333	warn "enter emergency map save\n";	2241	Returns an arrayref with all map paths of currently instantiated and saved
		2242	random maps. May block.
1334		2243
1335	cf::sync_job {	2244	=cut
1336	warn "begin emergency map save\n";
1337	$_->save for values %cf::MAP;
1338	};
1339		2245
1340	warn "end emergency map save\n";	2246	sub random_maps() {
		2247	[
		2248	map {
		2249	utf8::decode $_;
		2250	/\.map$/
		2251	? normalise "?random/$_"
		2252	: ()
		2253	} @{ aio_readdir $RANDOMDIR or [] }
		2254	]
		2255	}
		2256
		2257	=item cf::map::unique_maps
		2258
		2259	Returns an arrayref of paths of all shared maps that have
		2260	instantiated unique items. May block.
		2261
		2262	=cut
		2263
		2264	sub unique_maps() {
		2265	[
		2266	map {
		2267	utf8::decode $_;
		2268	/\.map$/
		2269	? normalise $_
		2270	: ()
		2271	} @{ aio_readdir $UNIQUEDIR or [] }
		2272	]
1341	}	2273	}
1342		2274
1343	package cf;	2275	package cf;
1344		2276
1345	=back	2277	=back
1346		2278
		2279	=head3 cf::object
		2280
		2281	=cut
		2282
		2283	package cf::object;
		2284
		2285	=over 4
		2286
		2287	=item $ob->inv_recursive
		2288
		2289	Returns the inventory of the object _and_ their inventories, recursively.
		2290
		2291	=cut
		2292
		2293	sub inv_recursive_;
		2294	sub inv_recursive_ {
		2295	map { $_, inv_recursive_ $_->inv } @_
		2296	}
		2297
		2298	sub inv_recursive {
		2299	inv_recursive_ inv $_[0]
		2300	}
		2301
		2302	=item $ref = $ob->ref
		2303
		2304	creates and returns a persistent reference to an objetc that can be stored as a string.
		2305
		2306	=item $ob = cf::object::deref ($refstring)
		2307
		2308	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2309	even if the object actually exists. May block.
		2310
		2311	=cut
		2312
		2313	sub deref {
		2314	my ($ref) = @_;
		2315
		2316	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2317	my ($uuid, $name) = ($1, $2);
		2318	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2319	or return;
		2320	$pl->ob->uuid eq $uuid
		2321	or return;
		2322
		2323	$pl->ob
		2324	} else {
		2325	warn "$ref: cannot resolve object reference\n";
		2326	undef
		2327	}
		2328	}
		2329
		2330	package cf;
		2331
		2332	=back
1347		2333
1348	=head3 cf::object::player	2334	=head3 cf::object::player
1349		2335
1350	=over 4	2336	=over 4
1351		2337
…		…
1365		2351
1366	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2352	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1367		2353
1368	if ($self->{record_replies}) {	2354	if ($self->{record_replies}) {
1369	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2355	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2356
1370	} else {	2357	} else {
		2358	my $pl = $self->contr;
		2359
		2360	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2361	my $dialog = $pl->{npc_dialog};
		2362	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2363
		2364	} else {
1371	$msg = $npc->name . " says: $msg" if $npc;	2365	$msg = $npc->name . " says: $msg" if $npc;
1372	$self->message ($msg, $flags);	2366	$self->message ($msg, $flags);
		2367	}
1373	}	2368	}
		2369	}
		2370
		2371	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2372
		2373	=cut
		2374
		2375	sub cf::object::send_msg {
		2376	my $pl = shift->contr
		2377	or return;
		2378	$pl->send_msg (@_);
1374	}	2379	}
1375		2380
1376	=item $player_object->may ("access")	2381	=item $player_object->may ("access")
1377		2382
1378	Returns wether the given player is authorized to access resource "access"	2383	Returns wether the given player is authorized to access resource "access"
…		…
1391		2396
1392	=item $player_object->enter_link	2397	=item $player_object->enter_link
1393		2398
1394	Freezes the player and moves him/her to a special map (C<{link}>).	2399	Freezes the player and moves him/her to a special map (C<{link}>).
1395		2400
1396	The player should be reaosnably safe there for short amounts of time. You	2401	The player should be reasonably safe there for short amounts of time. You
1397	I<MUST> call C<leave_link> as soon as possible, though.	2402	I<MUST> call C<leave_link> as soon as possible, though.
1398		2403
		2404	Will never block.
		2405
1399	=item $player_object->leave_link ($map, $x, $y)	2406	=item $player_object->leave_link ($map, $x, $y)
1400		2407
1401	Moves the player out of the specila link map onto the given map. If the	2408	Moves the player out of the special C<{link}> map onto the specified
1402	map is not valid (or omitted), the player will be moved back to the	2409	map. If the map is not valid (or omitted), the player will be moved back
1403	location he/she was before the call to C<enter_link>, or, if that fails,	2410	to the location he/she was before the call to C<enter_link>, or, if that
1404	to the emergency map position.	2411	fails, to the emergency map position.
1405		2412
1406	Might block.	2413	Might block.
1407		2414
1408	=cut	2415	=cut
		2416
		2417	sub link_map {
		2418	unless ($LINK_MAP) {
		2419	$LINK_MAP = cf::map::find "{link}"
		2420	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2421	$LINK_MAP->load;
		2422	}
		2423
		2424	$LINK_MAP
		2425	}
1409		2426
1410	sub cf::object::player::enter_link {	2427	sub cf::object::player::enter_link {
1411	my ($self) = @_;	2428	my ($self) = @_;
1412		2429
1413	return if $self->map == $LINK_MAP;
1414
1415	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1416	if $self->map;
1417
1418	$self->enter_map ($LINK_MAP, 20, 20);
1419	$self->deactivate_recursive;	2430	$self->deactivate_recursive;
		2431
		2432	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2433
		2434	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2435	if $self->map && $self->map->{path} ne "{link}";
		2436
		2437	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1420	}	2438	}
1421		2439
1422	sub cf::object::player::leave_link {	2440	sub cf::object::player::leave_link {
1423	my ($self, $map, $x, $y) = @_;	2441	my ($self, $map, $x, $y) = @_;
		2442
		2443	return unless $self->contr->active;
1424		2444
1425	my $link_pos = delete $self->{_link_pos};	2445	my $link_pos = delete $self->{_link_pos};
1426		2446
1427	unless ($map) {	2447	unless ($map) {
1428	# restore original map position	2448	# restore original map position
1429	($map, $x, $y) = @{ $link_pos || [] };	2449	($map, $x, $y) = @{ $link_pos || [] };
1430	$map = cf::map::find_map $map;	2450	$map = cf::map::find $map;
1431		2451
1432	unless ($map) {	2452	unless ($map) {
1433	($map, $x, $y) = @$EMERGENCY_POSITION;	2453	($map, $x, $y) = @$EMERGENCY_POSITION;
1434	$map = cf::map::find_map $map	2454	$map = cf::map::find $map
1435	or die "FATAL: cannot load emergency map\n";	2455	or die "FATAL: cannot load emergency map\n";
1436	}	2456	}
1437	}	2457	}
1438		2458
1439	($x, $y) = (-1, -1)	2459	($x, $y) = (-1, -1)
…		…
1442	# use -1 or undef as default coordinates, not 0, 0	2462	# use -1 or undef as default coordinates, not 0, 0
1443	($x, $y) = ($map->enter_x, $map->enter_y)	2463	($x, $y) = ($map->enter_x, $map->enter_y)
1444	if $x <=0 && $y <= 0;	2464	if $x <=0 && $y <= 0;
1445		2465
1446	$map->load;	2466	$map->load;
		2467	$map->load_neighbours;
1447		2468
		2469	return unless $self->contr->active;
1448	$self->activate_recursive;	2470	$self->activate_recursive;
		2471
		2472	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1449	$self->enter_map ($map, $x, $y);	2473	$self->enter_map ($map, $x, $y);
1450	}	2474	}
1451		2475
1452	=item $player_object->goto_map ($path, $x, $y)	2476	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1453		2477
1454	=cut	2478	Moves the player to the given map-path and coordinates by first freezing
		2479	her, loading and preparing them map, calling the provided $check callback
		2480	that has to return the map if sucecssful, and then unfreezes the player on
		2481	the new (success) or old (failed) map position. In either case, $done will
		2482	be called at the end of this process.
1455		2483
		2484	=cut
		2485
		2486	our $GOTOGEN;
		2487
1456	sub cf::object::player::goto_map {	2488	sub cf::object::player::goto {
1457	my ($self, $path, $x, $y) = @_;	2489	my ($self, $path, $x, $y, $check, $done) = @_;
		2490
		2491	# do generation counting so two concurrent goto's will be executed in-order
		2492	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1458		2493
1459	$self->enter_link;	2494	$self->enter_link;
1460		2495
1461	(Coro::async {	2496	(async {
1462	$path = new cf::path $path;	2497	$Coro::current->{desc} = "player::goto $path $x $y";
1463		2498
1464	my $map = cf::map::find_map $path->as_string;	2499	# *tag paths override both path and x|y
		2500	if ($path =~ /^\*(.*)$/) {
		2501	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2502	my $ob = $obs[rand @obs];
		2503
		2504	# see if we actually can go there
		2505	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2506	$ob = $obs[rand @obs];
		2507	} else {
		2508	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2509	}
		2510	# else put us there anyways for now #d#
		2511
		2512	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2513	} else {
		2514	($path, $x, $y) = (undef, undef, undef);
		2515	}
		2516	}
		2517
		2518	my $map = eval {
		2519	my $map = defined $path ? cf::map::find $path : undef;
		2520
		2521	if ($map) {
1465	$map = $map->customise_for ($self) if $map;	2522	$map = $map->customise_for ($self);
1466		2523	$map = $check->($map) if $check && $map;
1467	# warn "entering ", $map->path, " at ($x, $y)\n"	2524	} else {
1468	# if $map;
1469
1470	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2525	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2526	}
1471		2527
		2528	$map
		2529	};
		2530
		2531	if ($@) {
		2532	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2533	LOG llevError | logBacktrace, Carp::longmess $@;
		2534	}
		2535
		2536	if ($gen == $self->{_goto_generation}) {
		2537	delete $self->{_goto_generation};
1472	$self->leave_link ($map, $x, $y);	2538	$self->leave_link ($map, $x, $y);
		2539	}
		2540
		2541	$done->() if $done;
1473	})->prio (1);	2542	})->prio (1);
1474	}	2543	}
1475		2544
1476	=item $player_object->enter_exit ($exit_object)	2545	=item $player_object->enter_exit ($exit_object)
1477		2546
…		…
1479		2548
1480	sub parse_random_map_params {	2549	sub parse_random_map_params {
1481	my ($spec) = @_;	2550	my ($spec) = @_;
1482		2551
1483	my $rmp = { # defaults	2552	my $rmp = { # defaults
1484	xsize => 10,	2553	xsize => (cf::rndm 15, 40),
1485	ysize => 10,	2554	ysize => (cf::rndm 15, 40),
		2555	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2556	#layout => string,
1486	};	2557	};
1487		2558
1488	for (split /\n/, $spec) {	2559	for (split /\n/, $spec) {
1489	my ($k, $v) = split /\s+/, $_, 2;	2560	my ($k, $v) = split /\s+/, $_, 2;
1490		2561
…		…
1494	$rmp	2565	$rmp
1495	}	2566	}
1496		2567
1497	sub prepare_random_map {	2568	sub prepare_random_map {
1498	my ($exit) = @_;	2569	my ($exit) = @_;
		2570
		2571	my $guard = cf::lock_acquire "exit_prepare:$exit";
1499		2572
1500	# all this does is basically replace the /! path by	2573	# all this does is basically replace the /! path by
1501	# a new random map path (?random/...) with a seed	2574	# a new random map path (?random/...) with a seed
1502	# that depends on the exit object	2575	# that depends on the exit object
1503		2576
1504	my $rmp = parse_random_map_params $exit->msg;	2577	my $rmp = parse_random_map_params $exit->msg;
1505		2578
1506	if ($exit->map) {	2579	if ($exit->map) {
1507	$rmp->{region} = $exit->map->region_name;	2580	$rmp->{region} = $exit->region->name;
1508	$rmp->{origin_map} = $exit->map->path;	2581	$rmp->{origin_map} = $exit->map->path;
1509	$rmp->{origin_x} = $exit->x;	2582	$rmp->{origin_x} = $exit->x;
1510	$rmp->{origin_y} = $exit->y;	2583	$rmp->{origin_y} = $exit->y;
1511	}	2584	}
1512		2585
1513	$rmp->{random_seed} ||= $exit->random_seed;	2586	$rmp->{random_seed} ||= $exit->random_seed;
1514		2587
1515	my $data = cf::to_json $rmp;	2588	my $data = cf::to_json $rmp;
1516	my $md5 = Digest::MD5::md5_hex $data;	2589	my $md5 = Digest::MD5::md5_hex $data;
		2590	my $meta = "$RANDOMDIR/$md5.meta";
1517		2591
1518	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2592	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1519	aio_write $fh, 0, (length $data), $data, 0;	2593	aio_write $fh, 0, (length $data), $data, 0;
		2594	undef $fh;
		2595	aio_rename "$meta~", $meta;
1520		2596
1521	$exit->slaying ("?random/$md5");	2597	$exit->slaying ("?random/$md5");
1522	$exit->msg (undef);	2598	$exit->msg (undef);
1523	}	2599	}
1524	}	2600	}
…		…
1526	sub cf::object::player::enter_exit {	2602	sub cf::object::player::enter_exit {
1527	my ($self, $exit) = @_;	2603	my ($self, $exit) = @_;
1528		2604
1529	return unless $self->type == cf::PLAYER;	2605	return unless $self->type == cf::PLAYER;
1530		2606
		2607	if ($exit->slaying eq "/!") {
		2608	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2609	# the problem is that $exit might not survive long enough
		2610	# so it needs to be done right now, right here
		2611	cf::sync_job { prepare_random_map $exit };
		2612	}
		2613
		2614	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2615	my $hp = $exit->stats->hp;
		2616	my $sp = $exit->stats->sp;
		2617
1531	$self->enter_link;	2618	$self->enter_link;
1532		2619
		2620	# if exit is damned, update players death & WoR home-position
		2621	$self->contr->savebed ($slaying, $hp, $sp)
		2622	if $exit->flag (FLAG_DAMNED);
		2623
1533	(Coro::async {	2624	(async {
		2625	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2626
		2627	$self->deactivate_recursive; # just to be sure
1534	unless (eval {	2628	unless (eval {
1535		2629	$self->goto ($slaying, $hp, $sp);
1536	prepare_random_map $exit
1537	if $exit->slaying eq "/!";
1538
1539	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1540	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1541		2630
1542	1;	2631	1;
1543	}) {	2632	}) {
1544	$self->message ("Something went wrong deep within the crossfire server. "	2633	$self->message ("Something went wrong deep within the crossfire server. "
1545	. "I'll try to bring you back to the map you were before. "	2634	. "I'll try to bring you back to the map you were before. "
1546	. "Please report this to the dungeon master",	2635	. "Please report this to the dungeon master!",
1547	cf::NDI_UNIQUE | cf::NDI_RED);	2636	cf::NDI_UNIQUE | cf::NDI_RED);
1548		2637
1549	warn "ERROR in enter_exit: $@";	2638	warn "ERROR in enter_exit: $@";
1550	$self->leave_link;	2639	$self->leave_link;
1551	}	2640	}
1552	})->prio (1);	2641	})->prio (1);
…		…
1565		2654
1566	sub cf::client::send_drawinfo {	2655	sub cf::client::send_drawinfo {
1567	my ($self, $text, $flags) = @_;	2656	my ($self, $text, $flags) = @_;
1568		2657
1569	utf8::encode $text;	2658	utf8::encode $text;
1570	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2659	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1571	}	2660	}
1572		2661
		2662	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2663
		2664	Send a drawinfo or msg packet to the client, formatting the msg for the
		2665	client if neccessary. C<$type> should be a string identifying the type of
		2666	the message, with C<log> being the default. If C<$color> is negative, suppress
		2667	the message unless the client supports the msg packet.
		2668
		2669	=cut
		2670
		2671	our %CHANNEL = (
		2672	"c/identify" => {
		2673	id => "infobox",
		2674	title => "Identify",
		2675	reply => undef,
		2676	tooltip => "Items recently identified",
		2677	},
		2678	"c/examine" => {
		2679	id => "infobox",
		2680	title => "Examine",
		2681	reply => undef,
		2682	tooltip => "Signs and other items you examined",
		2683	},
		2684	"c/lookat" => {
		2685	id => "infobox",
		2686	title => "Look",
		2687	reply => undef,
		2688	tooltip => "What you saw there",
		2689	},
		2690	);
		2691
		2692	sub cf::client::send_msg {
		2693	my ($self, $channel, $msg, $color, @extra) = @_;
		2694
		2695	$msg = $self->pl->expand_cfpod ($msg);
		2696
		2697	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2698
		2699	# check predefined channels, for the benefit of C
		2700	if ($CHANNEL{$channel}) {
		2701	$channel = $CHANNEL{$channel};
		2702
		2703	$self->ext_msg (channel_info => $channel)
		2704	if $self->can_msg;
		2705
		2706	$channel = $channel->{id};
		2707
		2708	} elsif (ref $channel) {
		2709	# send meta info to client, if not yet sent
		2710	unless (exists $self->{channel}{$channel->{id}}) {
		2711	$self->{channel}{$channel->{id}} = $channel;
		2712	$self->ext_msg (channel_info => $channel)
		2713	if $self->can_msg;
		2714	}
		2715
		2716	$channel = $channel->{id};
		2717	}
		2718
		2719	return unless @extra || length $msg;
		2720
		2721	if ($self->can_msg) {
		2722	# default colour, mask it out
		2723	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2724	if $color & cf::NDI_DEF;
		2725
		2726	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2727	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2728	} else {
		2729	if ($color >= 0) {
		2730	# replace some tags by gcfclient-compatible ones
		2731	for ($msg) {
		2732	1 while
		2733	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2734	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2735	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2736	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2737	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2738	}
		2739
		2740	$color &= cf::NDI_COLOR_MASK;
		2741
		2742	utf8::encode $msg;
		2743
		2744	if (0 && $msg =~ /\[/) {
		2745	# COMMAND/INFO
		2746	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2747	} else {
		2748	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2749	$self->send_packet ("drawinfo $color $msg")
		2750	}
		2751	}
		2752	}
		2753	}
		2754
		2755	=item $client->ext_msg ($type, @msg)
		2756
		2757	Sends an ext event to the client.
		2758
		2759	=cut
		2760
		2761	sub cf::client::ext_msg($$@) {
		2762	my ($self, $type, @msg) = @_;
		2763
		2764	if ($self->extcmd == 2) {
		2765	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2766	} elsif ($self->extcmd == 1) { # TODO: remove
		2767	push @msg, msgtype => "event_$type";
		2768	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2769	}
		2770	}
		2771
		2772	=item $client->ext_reply ($msgid, @msg)
		2773
		2774	Sends an ext reply to the client.
		2775
		2776	=cut
		2777
		2778	sub cf::client::ext_reply($$@) {
		2779	my ($self, $id, @msg) = @_;
		2780
		2781	if ($self->extcmd == 2) {
		2782	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2783	} elsif ($self->extcmd == 1) {
		2784	#TODO: version 1, remove
		2785	unshift @msg, msgtype => "reply", msgid => $id;
		2786	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2787	}
		2788	}
1573		2789
1574	=item $success = $client->query ($flags, "text", \&cb)	2790	=item $success = $client->query ($flags, "text", \&cb)
1575		2791
1576	Queues a query to the client, calling the given callback with	2792	Queues a query to the client, calling the given callback with
1577	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2793	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1578	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2794	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1579		2795
1580	Queries can fail, so check the return code. Or don't, as queries will become	2796	Queries can fail, so check the return code. Or don't, as queries will
1581	reliable at some point in the future.	2797	become reliable at some point in the future.
1582		2798
1583	=cut	2799	=cut
1584		2800
1585	sub cf::client::query {	2801	sub cf::client::query {
1586	my ($self, $flags, $text, $cb) = @_;	2802	my ($self, $flags, $text, $cb) = @_;
…		…
1594	utf8::encode $text;	2810	utf8::encode $text;
1595	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2811	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1596		2812
1597	$self->send_packet ($self->{query_queue}[0][0])	2813	$self->send_packet ($self->{query_queue}[0][0])
1598	if @{ $self->{query_queue} } == 1;	2814	if @{ $self->{query_queue} } == 1;
		2815
		2816	1
1599	}	2817	}
1600		2818
1601	cf::client->attach (	2819	cf::client->attach (
		2820	on_connect => sub {
		2821	my ($ns) = @_;
		2822
		2823	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2824	},
1602	on_reply => sub {	2825	on_reply => sub {
1603	my ($ns, $msg) = @_;	2826	my ($ns, $msg) = @_;
1604		2827
1605	# this weird shuffling is so that direct followup queries	2828	# this weird shuffling is so that direct followup queries
1606	# get handled first	2829	# get handled first
1607	my $queue = delete $ns->{query_queue};	2830	my $queue = delete $ns->{query_queue}
		2831	or return; # be conservative, not sure how that can happen, but we saw a crash here
1608		2832
1609	(shift @$queue)->[1]->($msg);	2833	(shift @$queue)->[1]->($msg);
		2834	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1610		2835
1611	push @{ $ns->{query_queue} }, @$queue;	2836	push @{ $ns->{query_queue} }, @$queue;
1612		2837
1613	if (@{ $ns->{query_queue} } == @$queue) {	2838	if (@{ $ns->{query_queue} } == @$queue) {
1614	if (@$queue) {	2839	if (@$queue) {
…		…
1616	} else {	2841	} else {
1617	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2842	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1618	}	2843	}
1619	}	2844	}
1620	},	2845	},
		2846	on_exticmd => sub {
		2847	my ($ns, $buf) = @_;
		2848
		2849	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2850
		2851	if (ref $msg) {
		2852	my ($type, $reply, @payload) =
		2853	"ARRAY" eq ref $msg
		2854	? @$msg
		2855	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2856
		2857	my @reply;
		2858
		2859	if (my $cb = $EXTICMD{$type}) {
		2860	@reply = $cb->($ns, @payload);
		2861	}
		2862
		2863	$ns->ext_reply ($reply, @reply)
		2864	if $reply;
		2865
		2866	} else {
		2867	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2868	}
		2869
		2870	cf::override;
		2871	},
1621	);	2872	);
1622		2873
1623	=item $client->coro (\&cb)	2874	=item $client->async (\&cb)
1624		2875
1625	Create a new coroutine, running the specified callback. The coroutine will	2876	Create a new coroutine, running the specified callback. The coroutine will
1626	be automatically cancelled when the client gets destroyed (e.g. on logout,	2877	be automatically cancelled when the client gets destroyed (e.g. on logout,
1627	or loss of connection).	2878	or loss of connection).
1628		2879
1629	=cut	2880	=cut
1630		2881
1631	sub cf::client::coro {	2882	sub cf::client::async {
1632	my ($self, $cb) = @_;	2883	my ($self, $cb) = @_;
1633		2884
1634	my $coro; $coro = async {	2885	my $coro = &Coro::async ($cb);
1635	eval {
1636	$cb->();
1637	};
1638	warn $@ if $@;
1639	};
1640		2886
1641	$coro->on_destroy (sub {	2887	$coro->on_destroy (sub {
1642	delete $self->{_coro}{$coro+0};	2888	delete $self->{_coro}{$coro+0};
1643	});	2889	});
1644		2890
…		…
1671	our $safe = new Safe "safe";	2917	our $safe = new Safe "safe";
1672	our $safe_hole = new Safe::Hole;	2918	our $safe_hole = new Safe::Hole;
1673		2919
1674	$SIG{FPE} = 'IGNORE';	2920	$SIG{FPE} = 'IGNORE';
1675		2921
1676	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2922	$safe->permit_only (Opcode::opset qw(
		2923	:base_core :base_mem :base_orig :base_math
		2924	grepstart grepwhile mapstart mapwhile
		2925	sort time
		2926	));
1677		2927
1678	# here we export the classes and methods available to script code	2928	# here we export the classes and methods available to script code
1679		2929
1680	=pod	2930	=pod
1681		2931
1682	The following fucntions and emthods are available within a safe environment:	2932	The following functions and methods are available within a safe environment:
1683		2933
1684	cf::object contr pay_amount pay_player map	2934	cf::object
		2935	contr pay_amount pay_player map x y force_find force_add destroy
		2936	insert remove name archname title slaying race decrease_ob_nr
		2937
1685	cf::object::player player	2938	cf::object::player
1686	cf::player peaceful	2939	player
1687	cf::map trigger	2940
		2941	cf::player
		2942	peaceful
		2943
		2944	cf::map
		2945	trigger
1688		2946
1689	=cut	2947	=cut
1690		2948
1691	for (	2949	for (
1692	["cf::object" => qw(contr pay_amount pay_player map)],	2950	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2951	insert remove inv name archname title slaying race
		2952	decrease_ob_nr destroy)],
1693	["cf::object::player" => qw(player)],	2953	["cf::object::player" => qw(player)],
1694	["cf::player" => qw(peaceful)],	2954	["cf::player" => qw(peaceful)],
1695	["cf::map" => qw(trigger)],	2955	["cf::map" => qw(trigger)],
1696	) {	2956	) {
1697	no strict 'refs';	2957	no strict 'refs';
…		…
1768	=back	3028	=back
1769		3029
1770	=cut	3030	=cut
1771		3031
1772	#############################################################################	3032	#############################################################################
		3033	# the server's init and main functions
1773		3034
1774	=head2 EXTENSION DATABASE SUPPORT	3035	sub load_facedata($) {
		3036	my ($path) = @_;
1775		3037
1776	Crossfire maintains a very simple database for extension use. It can	3038	# HACK to clear player env face cache, we need some signal framework
1777	currently store anything that can be serialised using Storable, which	3039	# for this (global event?)
1778	excludes objects.	3040	%ext::player_env::MUSIC_FACE_CACHE = ();
1779		3041
1780	The parameter C<$family> should best start with the name of the extension	3042	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1781	using it, it should be unique.
1782		3043
1783	=over 4	3044	warn "loading facedata from $path\n";
1784		3045
1785	=item $hashref = cf::db_get $family	3046	my $facedata;
		3047	0 < aio_load $path, $facedata
		3048	or die "$path: $!";
1786		3049
1787	Return a hashref for use by the extension C<$family>, which can be	3050	$facedata = Coro::Storable::thaw $facedata;
1788	modified. After modifications, you have to call C<cf::db_dirty> or
1789	C<cf::db_sync>.
1790		3051
1791	=item $value = cf::db_get $family => $key	3052	$facedata->{version} == 2
		3053	or cf::cleanup "$path: version mismatch, cannot proceed.";
1792		3054
1793	Returns a single value from the database	3055	# patch in the exptable
1794		3056	$facedata->{resource}{"res/exp_table"} = {
1795	=item cf::db_put $family => $hashref	3057	type => FT_RSRC,
1796		3058	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1797	Stores the given family hashref into the database. Updates are delayed, if
1798	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1799
1800	=item cf::db_put $family => $key => $value
1801
1802	Stores the given C<$value> in the family hash. Updates are delayed, if you
1803	want the data to be synced to disk immediately, use C<cf::db_sync>.
1804
1805	=item cf::db_dirty
1806
1807	Marks the database as dirty, to be updated at a later time.
1808
1809	=item cf::db_sync
1810
1811	Immediately write the database to disk I<if it is dirty>.
1812
1813	=cut
1814
1815	our $DB;
1816
1817	{
1818	my $path = cf::localdir . "/database.pst";
1819
1820	sub db_load() {
1821	warn "loading database $path\n";#d# remove later
1822	$DB = stat $path ? Storable::retrieve $path : { };
1823	}
1824
1825	my $pid;
1826
1827	sub db_save() {
1828	warn "saving database $path\n";#d# remove later
1829	waitpid $pid, 0 if $pid;
1830	if (0 == ($pid = fork)) {
1831	$DB->{_meta}{version} = 1;
1832	Storable::nstore $DB, "$path~";
1833	rename "$path~", $path;
1834	cf::_exit 0 if defined $pid;
1835	}
1836	}
1837
1838	my $dirty;
1839
1840	sub db_sync() {
1841	db_save if $dirty;
1842	undef $dirty;
1843	}
1844
1845	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1846	db_sync;
1847	});	3059	};
		3060	cf::cede_to_tick;
1848		3061
1849	sub db_dirty() {
1850	$dirty = 1;
1851	$idle->start;
1852	}	3062	{
		3063	my $faces = $facedata->{faceinfo};
1853		3064
1854	sub db_get($;$) {	3065	while (my ($face, $info) = each %$faces) {
1855	@_ >= 2	3066	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1856	? $DB->{$_[0]}{$_[1]}	3067	cf::face::set_visibility $idx, $info->{visibility};
1857	: ($DB->{$_[0]} ||= { })	3068	cf::face::set_magicmap $idx, $info->{magicmap};
1858	}	3069	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3070	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1859		3071
1860	sub db_put($$;$) {	3072	cf::cede_to_tick;
1861	if (@_ >= 3) {
1862	$DB->{$_[0]}{$_[1]} = $_[2];
1863	} else {
1864	$DB->{$_[0]} = $_[1];
1865	}
1866	db_dirty;
1867	}
1868
1869	cf::global->attach (
1870	prio => 10000,
1871	on_cleanup => sub {
1872	db_sync;
1873	},	3073	}
1874	);
1875	}
1876		3074
1877	#############################################################################	3075	while (my ($face, $info) = each %$faces) {
1878	# the server's main()	3076	next unless $info->{smooth};
		3077	my $idx = cf::face::find $face
		3078	or next;
		3079	if (my $smooth = cf::face::find $info->{smooth}) {
		3080	cf::face::set_smooth $idx, $smooth;
		3081	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3082	} else {
		3083	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3084	}
1879		3085
1880	sub cfg_load {	3086	cf::cede_to_tick;
		3087	}
		3088	}
		3089
		3090	{
		3091	my $anims = $facedata->{animinfo};
		3092
		3093	while (my ($anim, $info) = each %$anims) {
		3094	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3095	cf::cede_to_tick;
		3096	}
		3097
		3098	cf::anim::invalidate_all; # d'oh
		3099	}
		3100
		3101	{
		3102	# TODO: for gcfclient pleasure, we should give resources
		3103	# that gcfclient doesn't grok a >10000 face index.
		3104	my $res = $facedata->{resource};
		3105
		3106	my $soundconf = delete $res->{"res/sound.conf"};
		3107
		3108	while (my ($name, $info) = each %$res) {
		3109	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3110	my $data;
		3111
		3112	if ($info->{type} & 1) {
		3113	# prepend meta info
		3114
		3115	my $meta = $enc->encode ({
		3116	name => $name,
		3117	%{ $info->{meta} || {} },
		3118	});
		3119
		3120	$data = pack "(w/a*)*", $meta, $info->{data};
		3121	} else {
		3122	$data = $info->{data};
		3123	}
		3124
		3125	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3126	cf::face::set_type $idx, $info->{type};
		3127
		3128	cf::cede_to_tick;
		3129	}
		3130
		3131	if ($soundconf) {
		3132	$soundconf = $enc->decode (delete $soundconf->{data});
		3133
		3134	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3135	my $sound = $soundconf->{compat}[$_]
		3136	or next;
		3137
		3138	my $face = cf::face::find "sound/$sound->[1]";
		3139	cf::sound::set $sound->[0] => $face;
		3140	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3141	}
		3142
		3143	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3144	my $face = cf::face::find "sound/$v";
		3145	cf::sound::set $k => $face;
		3146	}
		3147	}
		3148	}
		3149
		3150	1
		3151	}
		3152
		3153	register_exticmd fx_want => sub {
		3154	my ($ns, $want) = @_;
		3155
		3156	while (my ($k, $v) = each %$want) {
		3157	$ns->fx_want ($k, $v);
		3158	}
		3159	};
		3160
		3161	sub reload_regions {
		3162	# HACK to clear player env face cache, we need some signal framework
		3163	# for this (global event?)
		3164	%ext::player_env::MUSIC_FACE_CACHE = ();
		3165
		3166	load_resource_file "$MAPDIR/regions"
		3167	or die "unable to load regions file\n";
		3168
		3169	for (cf::region::list) {
		3170	$_->{match} = qr/$_->{match}/
		3171	if exists $_->{match};
		3172	}
		3173	}
		3174
		3175	sub reload_facedata {
		3176	load_facedata "$DATADIR/facedata"
		3177	or die "unable to load facedata\n";
		3178	}
		3179
		3180	sub reload_archetypes {
		3181	load_resource_file "$DATADIR/archetypes"
		3182	or die "unable to load archetypes\n";
		3183	#d# NEED to laod twice to resolve forward references
		3184	# this really needs to be done in an extra post-pass
		3185	# (which needs to be synchronous, so solve it differently)
		3186	load_resource_file "$DATADIR/archetypes"
		3187	or die "unable to load archetypes\n";
		3188	}
		3189
		3190	sub reload_treasures {
		3191	load_resource_file "$DATADIR/treasures"
		3192	or die "unable to load treasurelists\n";
		3193	}
		3194
		3195	sub reload_resources {
		3196	warn "reloading resource files...\n";
		3197
		3198	reload_regions;
		3199	reload_facedata;
		3200	#reload_archetypes;#d#
		3201	reload_archetypes;
		3202	reload_treasures;
		3203
		3204	warn "finished reloading resource files\n";
		3205	}
		3206
		3207	sub init {
		3208	reload_resources;
		3209	}
		3210
		3211	sub reload_config {
1881	open my $fh, "<:utf8", cf::confdir . "/config"	3212	open my $fh, "<:utf8", "$CONFDIR/config"
1882	or return;	3213	or return;
1883		3214
1884	local $/;	3215	local $/;
1885	*CFG = YAML::Syck::Load <$fh>;	3216	*CFG = YAML::Syck::Load <$fh>;
		3217
		3218	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3219
		3220	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3221	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3222
		3223	if (exists $CFG{mlockall}) {
		3224	eval {
		3225	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3226	and die "WARNING: m(un)lockall failed: $!\n";
		3227	};
		3228	warn $@ if $@;
		3229	}
1886	}	3230	}
1887		3231
1888	sub main {	3232	sub main {
1889	# we must not ever block the main coroutine	3233	# we must not ever block the main coroutine
1890	local $Coro::idle = sub {	3234	local $Coro::idle = sub {
1891	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3235	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1892	(Coro::unblock_sub {	3236	(async {
		3237	$Coro::current->{desc} = "IDLE BUG HANDLER";
1893	Event::one_event;	3238	Event::one_event;
1894	})->();	3239	})->prio (Coro::PRIO_MAX);
1895	};	3240	};
1896		3241
1897	cfg_load;	3242	reload_config;
1898	db_load;	3243	db_init;
1899	load_extensions;	3244	load_extensions;
		3245
		3246	$TICK_WATCHER->start;
1900	Event::loop;	3247	Event::loop;
1901	}	3248	}
1902		3249
1903	#############################################################################	3250	#############################################################################
1904	# initialisation	3251	# initialisation and cleanup
1905		3252
		3253	# install some emergency cleanup handlers
		3254	BEGIN {
		3255	for my $signal (qw(INT HUP TERM)) {
		3256	Event->signal (
		3257	reentrant => 0,
		3258	data => WF_AUTOCANCEL,
		3259	signal => $signal,
		3260	prio => 0,
		3261	cb => sub {
		3262	cf::cleanup "SIG$signal";
		3263	},
		3264	);
		3265	}
		3266	}
		3267
		3268	sub write_runtime {
		3269	my $runtime = "$LOCALDIR/runtime";
		3270
		3271	# first touch the runtime file to show we are still running:
		3272	# the fsync below can take a very very long time.
		3273
		3274	IO::AIO::aio_utime $runtime, undef, undef;
		3275
		3276	my $guard = cf::lock_acquire "write_runtime";
		3277
		3278	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3279	or return;
		3280
		3281	my $value = $cf::RUNTIME + 90 + 10;
		3282	# 10 is the runtime save interval, for a monotonic clock
		3283	# 60 allows for the watchdog to kill the server.
		3284
		3285	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3286	and return;
		3287
		3288	# always fsync - this file is important
		3289	aio_fsync $fh
		3290	and return;
		3291
		3292	# touch it again to show we are up-to-date
		3293	aio_utime $fh, undef, undef;
		3294
		3295	close $fh
		3296	or return;
		3297
		3298	aio_rename "$runtime~", $runtime
		3299	and return;
		3300
		3301	warn "runtime file written.\n";
		3302
		3303	1
		3304	}
		3305
		3306	sub emergency_save() {
		3307	my $freeze_guard = cf::freeze_mainloop;
		3308
		3309	warn "enter emergency perl save\n";
		3310
		3311	cf::sync_job {
		3312	# use a peculiar iteration method to avoid tripping on perl
		3313	# refcount bugs in for. also avoids problems with players
		3314	# and maps saved/destroyed asynchronously.
		3315	warn "begin emergency player save\n";
		3316	for my $login (keys %cf::PLAYER) {
		3317	my $pl = $cf::PLAYER{$login} or next;
		3318	$pl->valid or next;
		3319	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3320	$pl->save;
		3321	}
		3322	warn "end emergency player save\n";
		3323
		3324	warn "begin emergency map save\n";
		3325	for my $path (keys %cf::MAP) {
		3326	my $map = $cf::MAP{$path} or next;
		3327	$map->valid or next;
		3328	$map->save;
		3329	}
		3330	warn "end emergency map save\n";
		3331
		3332	warn "begin emergency database checkpoint\n";
		3333	BDB::db_env_txn_checkpoint $DB_ENV;
		3334	warn "end emergency database checkpoint\n";
		3335	};
		3336
		3337	warn "leave emergency perl save\n";
		3338	}
		3339
		3340	sub post_cleanup {
		3341	my ($make_core) = @_;
		3342
		3343	warn Carp::longmess "post_cleanup backtrace"
		3344	if $make_core;
		3345	}
		3346
1906	sub reload() {	3347	sub do_reload_perl() {
1907	# can/must only be called in main	3348	# can/must only be called in main
1908	if ($Coro::current != $Coro::main) {	3349	if ($Coro::current != $Coro::main) {
1909	warn "can only reload from main coroutine\n";	3350	warn "can only reload from main coroutine";
1910	return;	3351	return;
1911	}	3352	}
1912		3353
1913	warn "reloading...";	3354	warn "reloading...";
1914		3355
1915	local $FREEZE = 1;	3356	warn "entering sync_job";
		3357
		3358	cf::sync_job {
		3359	cf::write_runtime; # external watchdog should not bark
1916	cf::emergency_save;	3360	cf::emergency_save;
		3361	cf::write_runtime; # external watchdog should not bark
1917		3362
1918	eval {	3363	warn "syncing database to disk";
		3364	BDB::db_env_txn_checkpoint $DB_ENV;
		3365
1919	# if anything goes wrong in here, we should simply crash as we already saved	3366	# if anything goes wrong in here, we should simply crash as we already saved
1920		3367
1921	# cancel all watchers	3368	warn "cancelling all WF_AUTOCANCEL watchers";
1922	for (Event::all_watchers) {	3369	for (Event::all_watchers) {
1923	$_->cancel if $_->data & WF_AUTOCANCEL;	3370	$_->cancel if $_->data & WF_AUTOCANCEL;
1924	}	3371	}
1925		3372
		3373	warn "flushing outstanding aio requests";
		3374	for (;;) {
		3375	BDB::flush;
		3376	IO::AIO::flush;
		3377	Coro::cede_notself;
		3378	last unless IO::AIO::nreqs || BDB::nreqs;
		3379	warn "iterate...";
		3380	}
		3381
		3382	++$RELOAD;
		3383
1926	# cancel all extension coros	3384	warn "cancelling all extension coros";
1927	$_->cancel for values %EXT_CORO;	3385	$_->cancel for values %EXT_CORO;
1928	%EXT_CORO = ();	3386	%EXT_CORO = ();
1929		3387
1930	# unload all extensions	3388	warn "removing commands";
1931	for (@exts) {	3389	%COMMAND = ();
		3390
		3391	warn "removing ext/exti commands";
		3392	%EXTCMD = ();
		3393	%EXTICMD = ();
		3394
		3395	warn "unloading/nuking all extensions";
		3396	for my $pkg (@EXTS) {
1932	warn "unloading <$_>";	3397	warn "... unloading $pkg";
1933	unload_extension $_;	3398
		3399	if (my $cb = $pkg->can ("unload")) {
		3400	eval {
		3401	$cb->($pkg);
		3402	1
		3403	} or warn "$pkg unloaded, but with errors: $@";
1934	}	3404	}
1935		3405
		3406	warn "... nuking $pkg";
		3407	Symbol::delete_package $pkg;
		3408	}
		3409
1936	# unload all modules loaded from $LIBDIR	3410	warn "unloading all perl modules loaded from $LIBDIR";
1937	while (my ($k, $v) = each %INC) {	3411	while (my ($k, $v) = each %INC) {
1938	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3412	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1939		3413
1940	warn "removing <$k>";	3414	warn "... unloading $k";
1941	delete $INC{$k};	3415	delete $INC{$k};
1942		3416
1943	$k =~ s/\.pm$//;	3417	$k =~ s/\.pm$//;
1944	$k =~ s/\//::/g;	3418	$k =~ s/\//::/g;
1945		3419
…		…
1948	}	3422	}
1949		3423
1950	Symbol::delete_package $k;	3424	Symbol::delete_package $k;
1951	}	3425	}
1952		3426
1953	# sync database to disk
1954	cf::db_sync;
1955	IO::AIO::flush;
1956
1957	# get rid of safe::, as good as possible	3427	warn "getting rid of safe::, as good as possible";
1958	Symbol::delete_package "safe::$_"	3428	Symbol::delete_package "safe::$_"
1959	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3429	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1960		3430
1961	# remove register_script_function callbacks
1962	# TODO
1963
1964	# unload cf.pm "a bit"	3431	warn "unloading cf.pm \"a bit\"";
1965	delete $INC{"cf.pm"};	3432	delete $INC{"cf.pm"};
		3433	delete $INC{"cf/pod.pm"};
1966		3434
1967	# don't, removes xs symbols, too,	3435	# don't, removes xs symbols, too,
1968	# and global variables created in xs	3436	# and global variables created in xs
1969	#Symbol::delete_package __PACKAGE__;	3437	#Symbol::delete_package __PACKAGE__;
1970		3438
1971	# reload cf.pm	3439	warn "unload completed, starting to reload now";
		3440
1972	warn "reloading cf.pm";	3441	warn "reloading cf.pm";
1973	require cf;	3442	require cf;
1974	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3443	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1975		3444
1976	# load config and database again	3445	warn "loading config and database again";
1977	cf::cfg_load;	3446	cf::reload_config;
1978	cf::db_load;
1979		3447
1980	# load extensions
1981	warn "load extensions";	3448	warn "loading extensions";
1982	cf::load_extensions;	3449	cf::load_extensions;
1983		3450
1984	# reattach attachments to objects	3451	warn "reattaching attachments to objects/players";
1985	warn "reattach";	3452	_global_reattach; # objects, sockets
1986	_global_reattach;	3453	warn "reattaching attachments to maps";
1987	};	3454	reattach $_ for values %MAP;
		3455	warn "reattaching attachments to players";
		3456	reattach $_ for values %PLAYER;
1988		3457
1989	if ($@) {	3458	warn "leaving sync_job";
		3459
		3460	1
		3461	} or do {
1990	warn $@;	3462	warn $@;
1991	warn "error while reloading, exiting.";	3463	warn "error while reloading, exiting.";
1992	exit 1;	3464	exit 1;
1993	}	3465	};
1994		3466
1995	warn "reloaded successfully";	3467	warn "reloaded";
1996	};	3468	};
1997		3469
1998	#############################################################################	3470	our $RELOAD_WATCHER; # used only during reload
1999		3471
2000	unless ($LINK_MAP) {	3472	sub reload_perl() {
2001	$LINK_MAP = cf::map::new;	3473	# doing reload synchronously and two reloads happen back-to-back,
		3474	# coro crashes during coro_state_free->destroy here.
2002		3475
2003	$LINK_MAP->width (41);	3476	$RELOAD_WATCHER ||= Event->timer (
2004	$LINK_MAP->height (41);	3477	reentrant => 0,
2005	$LINK_MAP->alloc;
2006	$LINK_MAP->path ("{link}");
2007	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2008	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2009
2010	# dirty hack because... archetypes are not yet loaded
2011	Event->timer (
2012	after => 2,	3478	after => 0,
		3479	data => WF_AUTOCANCEL,
2013	cb => sub {	3480	cb => sub {
2014	$_[0]->w->cancel;	3481	do_reload_perl;
2015		3482	undef $RELOAD_WATCHER;
2016	# provide some exits "home"
2017	my $exit = cf::object::new "exit";
2018
2019	$exit->slaying ($EMERGENCY_POSITION->[0]);
2020	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2021	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2022
2023	$LINK_MAP->insert ($exit->clone, 19, 19);
2024	$LINK_MAP->insert ($exit->clone, 19, 20);
2025	$LINK_MAP->insert ($exit->clone, 19, 21);
2026	$LINK_MAP->insert ($exit->clone, 20, 19);
2027	$LINK_MAP->insert ($exit->clone, 20, 21);
2028	$LINK_MAP->insert ($exit->clone, 21, 19);
2029	$LINK_MAP->insert ($exit->clone, 21, 20);
2030	$LINK_MAP->insert ($exit->clone, 21, 21);
2031
2032	$exit->destroy;
2033	});	3483	},
2034		3484	);
2035	$LINK_MAP->{deny_save} = 1;
2036	$LINK_MAP->{deny_reset} = 1;
2037
2038	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2039	}	3485	}
2040
2041	register "<global>", __PACKAGE__;
2042		3486
2043	register_command "reload" => sub {	3487	register_command "reload" => sub {
2044	my ($who, $arg) = @_;	3488	my ($who, $arg) = @_;
2045		3489
2046	if ($who->flag (FLAG_WIZ)) {	3490	if ($who->flag (FLAG_WIZ)) {
2047	$who->message ("start of reload.");
2048	reload;
2049	$who->message ("end of reload.");	3491	$who->message ("reloading server.");
		3492	async {
		3493	$Coro::current->{desc} = "perl_reload";
		3494	reload_perl;
		3495	};
2050	}	3496	}
2051	};	3497	};
2052		3498
2053	unshift @INC, $LIBDIR;	3499	unshift @INC, $LIBDIR;
		3500
		3501	my $bug_warning = 0;
		3502
		3503	our @WAIT_FOR_TICK;
		3504	our @WAIT_FOR_TICK_BEGIN;
		3505
		3506	sub wait_for_tick {
		3507	return unless $TICK_WATCHER->is_active;
		3508	return if $Coro::current == $Coro::main;
		3509
		3510	my $signal = new Coro::Signal;
		3511	push @WAIT_FOR_TICK, $signal;
		3512	$signal->wait;
		3513	}
		3514
		3515	sub wait_for_tick_begin {
		3516	return unless $TICK_WATCHER->is_active;
		3517	return if $Coro::current == $Coro::main;
		3518
		3519	my $signal = new Coro::Signal;
		3520	push @WAIT_FOR_TICK_BEGIN, $signal;
		3521	$signal->wait;
		3522	}
2054		3523
2055	$TICK_WATCHER = Event->timer (	3524	$TICK_WATCHER = Event->timer (
2056	reentrant => 0,	3525	reentrant => 0,
		3526	parked => 1,
2057	prio => 0,	3527	prio => 0,
2058	at => $NEXT_TICK || $TICK,	3528	at => $NEXT_TICK || $TICK,
2059	data => WF_AUTOCANCEL,	3529	data => WF_AUTOCANCEL,
2060	cb => sub {	3530	cb => sub {
2061	unless ($FREEZE) {	3531	if ($Coro::current != $Coro::main) {
		3532	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3533	unless ++$bug_warning > 10;
		3534	return;
		3535	}
		3536
		3537	$NOW = $tick_start = Event::time;
		3538
2062	cf::server_tick; # one server iteration	3539	cf::server_tick; # one server iteration
		3540
2063	$RUNTIME += $TICK;	3541	$RUNTIME += $TICK;
2064	}
2065
2066	$NEXT_TICK += $TICK;	3542	$NEXT_TICK += $TICK;
2067		3543
		3544	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3545	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3546	Coro::async_pool {
		3547	$Coro::current->{desc} = "runtime saver";
		3548	write_runtime
		3549	or warn "ERROR: unable to write runtime file: $!";
		3550	};
		3551	}
		3552
		3553	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3554	$sig->send;
		3555	}
		3556	while (my $sig = shift @WAIT_FOR_TICK) {
		3557	$sig->send;
		3558	}
		3559
		3560	$NOW = Event::time;
		3561
2068	# if we are delayed by four ticks or more, skip them all	3562	# if we are delayed by four ticks or more, skip them all
2069	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3563	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2070		3564
2071	$TICK_WATCHER->at ($NEXT_TICK);	3565	$TICK_WATCHER->at ($NEXT_TICK);
2072	$TICK_WATCHER->start;	3566	$TICK_WATCHER->start;
		3567
		3568	$LOAD = ($NOW - $tick_start) / $TICK;
		3569	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3570
		3571	_post_tick;
2073	},	3572	},
2074	);	3573	);
2075		3574
		3575	{
		3576	BDB::min_parallel 8;
2076	IO::AIO::max_poll_time $TICK * 0.2;	3577	BDB::max_poll_time $TICK * 0.1;
2077		3578	$BDB_POLL_WATCHER = Event->io (
2078	Event->io (	3579	reentrant => 0,
2079	fd => IO::AIO::poll_fileno,	3580	fd => BDB::poll_fileno,
2080	poll => 'r',	3581	poll => 'r',
2081	prio => 5,	3582	prio => 0,
2082	data => WF_AUTOCANCEL,
2083	cb => \&IO::AIO::poll_cb,
2084	);
2085
2086	Event->timer (
2087	data => WF_AUTOCANCEL,	3583	data => WF_AUTOCANCEL,
		3584	cb => \&BDB::poll_cb,
		3585	);
		3586
		3587	BDB::set_sync_prepare {
		3588	my $status;
		3589	my $current = $Coro::current;
		3590	(
		3591	sub {
		3592	$status = $!;
		3593	$current->ready; undef $current;
		3594	},
		3595	sub {
		3596	Coro::schedule while defined $current;
		3597	$! = $status;
		3598	},
		3599	)
		3600	};
		3601
		3602	unless ($DB_ENV) {
		3603	$DB_ENV = BDB::db_env_create;
		3604	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3605	| BDB::LOG_AUTOREMOVE, 1);
		3606	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3607	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3608
		3609	cf::sync_job {
		3610	eval {
		3611	BDB::db_env_open
		3612	$DB_ENV,
		3613	$BDBDIR,
		3614	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3615	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3616	0666;
		3617
		3618	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3619	};
		3620
		3621	cf::cleanup "db_env_open(db): $@" if $@;
		3622	};
		3623	}
		3624
		3625	$BDB_DEADLOCK_WATCHER = Event->timer (
2088	after => 0,	3626	after => 3,
2089	interval => 10,	3627	interval => 1,
		3628	hard => 1,
		3629	prio => 0,
		3630	data => WF_AUTOCANCEL,
2090	cb => sub {	3631	cb => sub {
2091	(Coro::unblock_sub {	3632	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2092	write_runtime	3633	},
2093	or warn "ERROR: unable to write runtime file: $!";	3634	);
		3635	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3636	after => 11,
		3637	interval => 60,
		3638	hard => 1,
		3639	prio => 0,
		3640	data => WF_AUTOCANCEL,
		3641	cb => sub {
		3642	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3643	},
		3644	);
		3645	$BDB_TRICKLE_WATCHER = Event->timer (
		3646	after => 5,
		3647	interval => 10,
		3648	hard => 1,
		3649	prio => 0,
		3650	data => WF_AUTOCANCEL,
		3651	cb => sub {
		3652	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3653	},
		3654	);
		3655	}
		3656
		3657	{
		3658	IO::AIO::min_parallel 8;
		3659
		3660	undef $Coro::AIO::WATCHER;
		3661	IO::AIO::max_poll_time $TICK * 0.1;
		3662	$AIO_POLL_WATCHER = Event->io (
		3663	reentrant => 0,
		3664	data => WF_AUTOCANCEL,
		3665	fd => IO::AIO::poll_fileno,
		3666	poll => 'r',
		3667	prio => 0,
		3668	cb => \&IO::AIO::poll_cb,
		3669	);
		3670	}
		3671
		3672	my $_log_backtrace;
		3673
		3674	sub _log_backtrace {
		3675	my ($msg, @addr) = @_;
		3676
		3677	$msg =~ s/\n//;
		3678
		3679	# limit the # of concurrent backtraces
		3680	if ($_log_backtrace < 2) {
		3681	++$_log_backtrace;
		3682	async {
		3683	$Coro::current->{desc} = "abt $msg";
		3684
		3685	my @bt = fork_call {
		3686	@addr = map { sprintf "%x", $_ } @addr;
		3687	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3688	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3689	or die "addr2line: $!";
		3690
		3691	my @funcs;
		3692	my @res = <$fh>;
		3693	chomp for @res;
		3694	while (@res) {
		3695	my ($func, $line) = splice @res, 0, 2, ();
		3696	push @funcs, "[$func] $line";
		3697	}
		3698
		3699	@funcs
		3700	};
		3701
		3702	LOG llevInfo, "[ABT] $msg\n";
		3703	LOG llevInfo, "[ABT] $_\n" for @bt;
		3704	--$_log_backtrace;
2094	})->();	3705	};
		3706	} else {
		3707	LOG llevInfo, "[ABT] $msg\n";
		3708	LOG llevInfo, "[ABT] [suppressed]\n";
2095	},	3709	}
2096	);	3710	}
		3711
		3712	# load additional modules
		3713	use cf::pod;
		3714
		3715	END { cf::emergency_save }
2097		3716
2098	1	3717	1
2099		3718

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