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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.114 by root, Mon Jan 1 16:00:10 2007 UTC vs.
Revision 1.389 by root, Sat Oct 20 04:39:57 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);
		1132	warn sprintf "loading %s (%d,%d)\n",
		1133	$decname, length $data, scalar @{$av || []};
		1134
822	return ($data, $av);	1135	($data, $av)
823	}	1136	}
		1137
		1138	=head2 COMMAND CALLBACKS
		1139
		1140	=over 4
		1141
		1142	=cut
824		1143
825	#############################################################################	1144	#############################################################################
826	# command handling &c	1145	# command handling &c
827		1146
828	=item cf::register_command $name => \&callback($ob,$args);	1147	=item cf::register_command $name => \&callback($ob,$args);
…		…
841	push @{ $COMMAND{$name} }, [$caller, $cb];	1160	push @{ $COMMAND{$name} }, [$caller, $cb];
842	}	1161	}
843		1162
844	=item cf::register_extcmd $name => \&callback($pl,$packet);	1163	=item cf::register_extcmd $name => \&callback($pl,$packet);
845		1164
846	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.
847		1170
848	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
849	called.	1172	called.
850		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
851	=cut	1185	=cut
852		1186
853	sub register_extcmd {	1187	sub register_extcmd {
854	my ($name, $cb) = @_;	1188	my ($name, $cb) = @_;
855		1189
856	my $caller = caller;
857	#warn "registering extcmd '$name' to '$caller'";
858
859	$EXTCMD{$name} = [$cb, $caller];	1190	$EXTCMD{$name} = $cb;
		1191	}
		1192
		1193	sub register_exticmd {
		1194	my ($name, $cb) = @_;
		1195
		1196	$EXTICMD{$name} = $cb;
860	}	1197	}
861		1198
862	cf::player->attach (	1199	cf::player->attach (
863	on_command => sub {	1200	on_command => sub {
864	my ($pl, $name, $params) = @_;	1201	my ($pl, $name, $params) = @_;
…		…
873	cf::override;	1210	cf::override;
874	},	1211	},
875	on_extcmd => sub {	1212	on_extcmd => sub {
876	my ($pl, $buf) = @_;	1213	my ($pl, $buf) = @_;
877		1214
878	my $msg = eval { from_json $buf };	1215	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
879		1216
880	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
881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1225	if (my $cb = $EXTCMD{$type}) {
882	if (my %reply = $cb->[0]->($pl, $msg)) {	1226	@reply = $cb->($pl, @payload);
883	$pl->ext_reply ($msg->{msgid}, %reply);
884	}
885	}	1227	}
		1228
		1229	$pl->ext_reply ($reply, @reply)
		1230	if $reply;
		1231
886	} else {	1232	} else {
887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1233	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
888	}	1234	}
889		1235
890	cf::override;	1236	cf::override;
891	},	1237	},
892	);	1238	);
893		1239
894	sub register {
895	my ($base, $pkg) = @_;
896
897	#TODO
898	}
899
900	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($) {
901	my ($path) = @_;	1637	my ($path) = @_;
902		1638
903	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1639	my ($match, $specificity);
904	my $base = $1;
905	my $pkg = $1;
906	$pkg =~ s/[^[:word:]]/_/g;
907	$pkg = "ext::$pkg";
908		1640
909	warn "loading '$path' into '$pkg'\n";	1641	for my $region (list) {
910		1642	if ($region->{match} && $path =~ $region->{match}) {
911	open my $fh, "<:utf8", $path	1643	($match, $specificity) = ($region, $region->specificity)
912	or die "$path: $!";	1644	if $region->specificity > $specificity;
913		1645	}
914	my $source =
915	"package $pkg; use strict; use utf8;\n"
916	. "#line 1 \"$path\"\n{\n"
917	. (do { local $/; <$fh> })
918	. "\n};\n1";
919
920	eval $source
921	or die $@ ? "$path: $@\n"
922	: "extension disabled.\n";
923
924	push @exts, $pkg;
925	$ext_pkg{$base} = $pkg;
926
927	# no strict 'refs';
928	# @{"$pkg\::ISA"} = ext::;
929
930	register $base, $pkg;
931	}
932
933	sub unload_extension {
934	my ($pkg) = @_;
935
936	warn "removing extension $pkg\n";
937
938	# remove hooks
939	#TODO
940	# for my $idx (0 .. $#PLUGIN_EVENT) {
941	# delete $hook[$idx]{$pkg};
942	# }	1646	}
943		1647
944	# remove commands	1648	$match
945	for my $name (keys %COMMAND) {
946	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
947
948	if (@cb) {
949	$COMMAND{$name} = \@cb;
950	} else {
951	delete $COMMAND{$name};
952	}
953	}
954
955	# remove extcmds
956	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
957	delete $EXTCMD{$name};
958	}
959
960	if (my $cb = $pkg->can ("unload")) {
961	eval {
962	$cb->($pkg);
963	1
964	} or warn "$pkg unloaded, but with errors: $@";
965	}
966
967	Symbol::delete_package $pkg;
968	}
969
970	sub load_extensions {
971	for my $ext (<$LIBDIR/*.ext>) {
972	next unless -r $ext;
973	eval {
974	load_extension $ext;
975	1
976	} or warn "$ext not loaded: $@";
977	}
978	}
979
980	#############################################################################
981	# load/save/clean perl data associated with a map
982
983	*cf::mapsupport::on_clean = sub {
984	my ($map) = @_;
985
986	my $path = $map->tmpname;
987	defined $path or return;
988
989	unlink "$path.pst";
990	};
991
992	cf::map->attach (prio => -10000, package => cf::mapsupport::);
993
994	#############################################################################
995	# load/save perl data associated with player->ob objects
996
997	sub all_objects(@) {
998	@_, map all_objects ($_->inv), @_
999	}
1000
1001	# TODO: compatibility cruft, remove when no longer needed
1002	cf::player->attach (
1003	on_load => sub {
1004	my ($pl, $path) = @_;
1005
1006	for my $o (all_objects $pl->ob) {
1007	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1008	$o->set_ob_key_value ("_perl_data");
1009
1010	%$o = %{ Storable::thaw pack "H*", $value };
1011	}
1012	}
1013	},
1014	);
1015
1016	#############################################################################
1017
1018	=head2 CORE EXTENSIONS
1019
1020	Functions and methods that extend core crossfire objects.
1021
1022	=head3 cf::player
1023
1024	=over 4
1025
1026	=item cf::player::exists $login
1027
1028	Returns true when the given account exists.
1029
1030	=cut
1031
1032	sub cf::player::exists($) {
1033	cf::player::find $_[0]
1034	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1035	}
1036
1037	=item $player->ext_reply ($msgid, $msgtype, %msg)
1038
1039	Sends an ext reply to the player.
1040
1041	=cut
1042
1043	sub cf::player::ext_reply($$$%) {
1044	my ($self, $id, %msg) = @_;
1045
1046	$msg{msgid} = $id;
1047
1048	$self->send ("ext " . to_json \%msg);
1049	}	1649	}
1050		1650
1051	=back	1651	=back
1052
1053		1652
1054	=head3 cf::map	1653	=head3 cf::map
1055		1654
1056	=over 4	1655	=over 4
1057		1656
…		…
1060	package cf::map;	1659	package cf::map;
1061		1660
1062	use Fcntl;	1661	use Fcntl;
1063	use Coro::AIO;	1662	use Coro::AIO;
1064		1663
		1664	use overload
		1665	'""' => \&as_string,
		1666	fallback => 1;
		1667
1065	our $MAX_RESET = 7200;	1668	our $MAX_RESET = 3600;
1066	our $DEFAULT_RESET = 3600;	1669	our $DEFAULT_RESET = 3000;
1067		1670
1068	sub generate_random_map {	1671	sub generate_random_map {
1069	my ($path, $rmp) = @_;	1672	my ($self, $rmp) = @_;
1070
1071	# mit "rum" bekleckern, nicht	1673	# mit "rum" bekleckern, nicht
1072	cf::map::_create_random_map	1674	$self->_create_random_map (
1073	$path,
1074	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1675	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1075	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1676	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1076	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1677	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1077	$rmp->{exit_on_final_map},	1678	$rmp->{exit_on_final_map},
1078	$rmp->{xsize}, $rmp->{ysize},	1679	$rmp->{xsize}, $rmp->{ysize},
1079	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1680	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1080	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1681	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1081	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1682	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1082	$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},
1083	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1684	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1084	(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"
1085	}	1814	}
1086		1815
1087	# and all this just because we cannot iterate over	1816	# and all this just because we cannot iterate over
1088	# all maps in C++...	1817	# all maps in C++...
1089	sub change_all_map_light {	1818	sub change_all_map_light {
1090	my ($change) = @_;	1819	my ($change) = @_;
1091		1820
1092	$_->change_map_light ($change) for values %cf::MAP;	1821	$_->change_map_light ($change)
		1822	for grep $_->outdoor, values %cf::MAP;
1093	}	1823	}
1094		1824
		1825	sub decay_objects {
		1826	my ($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
1095	sub try_load_header($) {	1841	sub load_header_from($) {
1096	my ($path) = @_;	1842	my ($self, $path) = @_;
1097		1843
1098	utf8::encode $path;	1844	utf8::encode $path;
1099	aio_open $path, O_RDONLY, 0	1845	my $f = new_from_file cf::object::thawer $path
1100	or return;	1846	or return;
1101		1847
1102	my $map = cf::map::new	1848	$self->_load_header ($f)
1103	or return;	1849	or return;
1104		1850
1105	$map->load_header ($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
1106	or return;	1897	or return;
		1898	$self->prepare_orig;
		1899	}
1107		1900
1108	$map->{load_path} = $path;	1901	$self->{deny_reset} = 1
		1902	if $self->no_reset;
1109		1903
1110	$map	1904	$self->default_region (cf::region::find_by_path $self->{path})
1111	}	1905	unless $self->default_region;
1112		1906
		1907	1
		1908	}
		1909
		1910	sub find;
1113	sub find_map {	1911	sub find {
1114	my ($path, $origin) = @_;	1912	my ($path, $origin) = @_;
1115		1913
1116	#warn "find_map<$path,$origin>\n";#d#
1117
1118	$path = new cf::path $path, $origin && $origin->path;	1914	$path = normalise $path, $origin && $origin->path;
1119	my $key = $path->as_string;
1120		1915
		1916	cf::lock_wait "map_data:$path";#d#remove
		1917	cf::lock_wait "map_find:$path";
		1918
1121	$cf::MAP{$key} || do {	1919	$cf::MAP{$path} || do {
1122	# do it the slow way	1920	my $guard1 = cf::lock_acquire "map_find:$path";
1123	my $map = try_load_header $path->save_path;	1921	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1124		1922
1125	if ($map) {	1923	my $map = new_from_path cf::map $path
1126	# safety
1127	$map->{instantiate_time} = $cf::RUNTIME
1128	if $map->{instantiate_time} > $cf::RUNTIME;
1129	} else {
1130	if (my $rmp = $path->random_map_params) {
1131	$map = generate_random_map $key, $rmp;
1132	} else {
1133	$map = try_load_header $path->load_path;
1134	}
1135
1136	$map or return;	1924	or return;
1137		1925
1138	$map->{load_original} = 1;
1139	$map->{instantiate_time} = $cf::RUNTIME;
1140	$map->instantiate;
1141
1142	# per-player maps become, after loading, normal maps
1143	$map->per_player (0) if $path->{user_rel};
1144	}
1145
1146	$map->path ($key);
1147	$map->{path} = $path;
1148	$map->last_access ($cf::RUNTIME);	1926	$map->{last_save} = $cf::RUNTIME;
1149		1927
1150	if ($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;
1151	$map->reset;	1936	$map->reset;
1152	$map = find_map $path;	1937	return find $path;
1153	}	1938	}
1154		1939
1155	$cf::MAP{$key} = $map	1940	$cf::MAP{$path} = $map
1156	}	1941	}
1157	}	1942	}
		1943
		1944	sub pre_load { }
		1945	sub post_load { }
1158		1946
1159	sub load {	1947	sub load {
1160	my ($self) = @_;	1948	my ($self) = @_;
1161		1949
1162	return if $self->in_memory != cf::MAP_SWAPPED;	1950	local $self->{deny_reset} = 1; # loading can take a long time
1163
1164	$self->in_memory (cf::MAP_LOADING);
1165		1951
1166	my $path = $self->{path};	1952	my $path = $self->{path};
1167		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
1168	$self->alloc;	1962	$self->alloc;
1169	$self->load_objects ($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)
1170	or return;	1970	or return;
1171		1971
1172	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1972	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1173	if delete $self->{load_original};	1973	if delete $self->{load_original};
1174		1974
1175	if (my $uniq = $path->uniq_path) {	1975	if (my $uniq = $self->uniq_path) {
1176	utf8::encode $uniq;	1976	utf8::encode $uniq;
1177	if (aio_open $uniq, O_RDONLY, 0) {	1977	unless (aio_stat $uniq) {
		1978	if (my $f = new_from_file cf::object::thawer $uniq) {
1178	$self->clear_unique_items;	1979	$self->clear_unique_items;
1179	$self->load_objects ($uniq, 0);	1980	$self->_load_objects ($f);
		1981	$f->resolve_delayed_derefs;
		1982	}
1180	}	1983	}
1181	}	1984	}
1182		1985
		1986	$f->resolve_delayed_derefs;
		1987
		1988	cf::cede_to_tick;
1183	# now do the right thing for maps	1989	# now do the right thing for maps
1184	$self->link_multipart_objects;	1990	$self->link_multipart_objects;
1185
1186	if ($self->{path}->is_style_map) {
1187	$self->{deny_save} = 1;
1188	$self->{deny_reset} = 1;
1189	} else {
1190	$self->fix_auto_apply;
1191	$self->decay_objects;
1192	$self->update_buttons;
1193	$self->set_darkness_map;
1194	$self->difficulty ($self->estimate_difficulty)	1991	$self->difficulty ($self->estimate_difficulty)
1195	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;
1196	$self->activate;	2002	$self->activate;
1197	}	2003	}
1198		2004
		2005	$self->{last_save} = $cf::RUNTIME;
		2006	$self->last_access ($cf::RUNTIME);
		2007
1199	$self->in_memory (cf::MAP_IN_MEMORY);	2008	$self->in_memory (cf::MAP_IN_MEMORY);
1200	}	2009	}
1201		2010
1202	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	$neigh->load;
		2049	}
		2050	}
		2051
		2052	sub find_sync {
1203	my ($path, $origin) = @_;	2053	my ($path, $origin) = @_;
1204		2054
1205	#warn "load_map_sync<$path, $origin>\n";#d#	2055	cf::sync_job { find $path, $origin }
		2056	}
1206		2057
1207	cf::sync_job {	2058	sub do_load_sync {
1208	my $map = cf::map::find_map $path, $origin	2059	my ($map) = @_;
1209	or return;	2060
1210	$map->load;	2061	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1211	$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;
1212	}	2094	};
		2095	$MAP_PREFETCHER->prio (6);
		2096
		2097	()
1213	}	2098	}
1214		2099
1215	sub save {	2100	sub save {
1216	my ($self) = @_;	2101	my ($self) = @_;
1217		2102
1218	my $save = $self->{path}->save_path; utf8::encode $save;	2103	my $lock = cf::lock_acquire "map_data:$self->{path}";
1219	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1220		2104
1221	$self->{last_save} = $cf::RUNTIME;	2105	$self->{last_save} = $cf::RUNTIME;
1222		2106
1223	return unless $self->dirty;	2107	return unless $self->dirty;
1224		2108
		2109	my $save = $self->save_path; utf8::encode $save;
		2110	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2111
1225	$self->{load_path} = $save;	2112	$self->{load_path} = $save;
1226		2113
1227	return if $self->{deny_save};	2114	return if $self->{deny_save};
1228		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 $self->players;
		2121	};
		2122
1229	if ($uniq) {	2123	if ($uniq) {
1230	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2124	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1231	$self->save_objects ($uniq, cf::IO_UNIQUES);	2125	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1232	} else {	2126	} else {
1233	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2127	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1234	}	2128	}
1235	}	2129	}
1236		2130
1237	sub swap_out {	2131	sub swap_out {
1238	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}";
1239		2138
1240	return if $self->players;	2139	return if $self->players;
1241	return if $self->in_memory != cf::MAP_IN_MEMORY;	2140	return if $self->in_memory != cf::MAP_IN_MEMORY;
1242	return if $self->{deny_save};	2141	return if $self->{deny_save};
1243		2142
		2143	$self->in_memory (cf::MAP_SWAPPED);
		2144
1244	$self->save;	2145	$self->deactivate;
		2146	$_->clear_links_to ($self) for values %cf::MAP;
1245	$self->clear;	2147	$self->clear;
1246	$self->in_memory (cf::MAP_SWAPPED);
1247	}	2148	}
1248		2149
1249	sub reset_at {	2150	sub reset_at {
1250	my ($self) = @_;	2151	my ($self) = @_;
1251		2152
1252	# TODO: safety, remove and allow resettable per-player maps	2153	# TODO: safety, remove and allow resettable per-player maps
1253	return 1e99 if $self->{path}{user_rel};
1254	return 1e99 if $self->{deny_reset};	2154	return 1e99 if $self->{deny_reset};
1255		2155
1256	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2156	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1257	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2157	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1258		2158
…		…
1263	my ($self) = @_;	2163	my ($self) = @_;
1264		2164
1265	$self->reset_at <= $cf::RUNTIME	2165	$self->reset_at <= $cf::RUNTIME
1266	}	2166	}
1267		2167
1268	sub unlink_save {
1269	my ($self) = @_;
1270
1271	utf8::encode (my $save = $self->{path}->save_path);
1272	aioreq_pri 3; IO::AIO::aio_unlink $save;
1273	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1274	}
1275
1276	sub rename {
1277	my ($self, $new_path) = @_;
1278
1279	$self->unlink_save;
1280
1281	delete $cf::MAP{$self->path};
1282	$self->{path} = new cf::path $new_path;
1283	$self->path ($self->{path}->as_string);
1284	$cf::MAP{$self->path} = $self;
1285
1286	$self->save;
1287	}
1288
1289	sub reset {	2168	sub reset {
1290	my ($self) = @_;	2169	my ($self) = @_;
1291		2170
		2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2172
1292	return if $self->players;	2173	return if $self->players;
1293	return if $self->{path}{user_rel};#d#
1294		2174
1295	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	}
1296		2186
1297	delete $cf::MAP{$self->path};	2187	delete $cf::MAP{$self->path};
1298		2188
		2189	$self->deactivate;
1299	$_->clear_links_to ($self) for values %cf::MAP;	2190	$_->clear_links_to ($self) for values %cf::MAP;
		2191	$self->clear;
1300		2192
1301	$self->unlink_save;	2193	$self->unlink_save;
1302	$self->destroy;	2194	$self->destroy;
1303	}	2195	}
1304		2196
1305	my $nuke_counter = "aaaa";	2197	my $nuke_counter = "aaaa";
1306		2198
1307	sub nuke {	2199	sub nuke {
1308	my ($self) = @_;	2200	my ($self) = @_;
1309		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};
1310	$self->{deny_save} = 1;	2211	$self->{deny_save} = 1;
1311	$self->reset_timeout (1);	2212	$self->reset_timeout (1);
1312	$self->rename ("{nuke}/" . ($nuke_counter++));	2213	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2214
		2215	$cf::MAP{$self->path} = $self;
		2216	}
		2217
1313	$self->reset; # polite request, might not happen	2218	$self->reset; # polite request, might not happen
1314	}	2219	}
1315		2220
1316	sub customise_for {	2221	=item $maps = cf::map::tmp_maps
1317	my ($map, $ob) = @_;
1318		2222
1319	if ($map->per_player) {	2223	Returns an arrayref with all map paths of currently instantiated and saved
1320	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2224	maps. May block.
		2225
		2226	=cut
		2227
		2228	sub tmp_maps() {
1321	}	2229	[
1322		2230	map {
1323	$map	2231	utf8::decode $_;
		2232	/\.map$/
		2233	? normalise $_
		2234	: ()
		2235	} @{ aio_readdir $TMPDIR or [] }
		2236	]
1324	}	2237	}
1325		2238
1326	sub emergency_save {	2239	=item $maps = cf::map::random_maps
1327	local $cf::FREEZE = 1;
1328		2240
1329	warn "enter emergency map save\n";	2241	Returns an arrayref with all map paths of currently instantiated and saved
		2242	random maps. May block.
1330		2243
1331	cf::sync_job {	2244	=cut
1332	warn "begin emergency map save\n";
1333	$_->save for values %cf::MAP;
1334	};
1335		2245
1336	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	]
1337	}	2273	}
1338		2274
1339	package cf;	2275	package cf;
1340		2276
1341	=back	2277	=back
1342		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
1343		2333
1344	=head3 cf::object::player	2334	=head3 cf::object::player
1345		2335
1346	=over 4	2336	=over 4
1347		2337
…		…
1361		2351
1362	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2352	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1363		2353
1364	if ($self->{record_replies}) {	2354	if ($self->{record_replies}) {
1365	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2355	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2356
1366	} 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 {
1367	$msg = $npc->name . " says: $msg" if $npc;	2365	$msg = $npc->name . " says: $msg" if $npc;
1368	$self->message ($msg, $flags);	2366	$self->message ($msg, $flags);
		2367	}
1369	}	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 (@_);
1370	}	2379	}
1371		2380
1372	=item $player_object->may ("access")	2381	=item $player_object->may ("access")
1373		2382
1374	Returns wether the given player is authorized to access resource "access"	2383	Returns wether the given player is authorized to access resource "access"
…		…
1383	(ref $cf::CFG{"may_$access"}	2392	(ref $cf::CFG{"may_$access"}
1384	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2393	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1385	: $cf::CFG{"may_$access"})	2394	: $cf::CFG{"may_$access"})
1386	}	2395	}
1387		2396
		2397	=item $player_object->enter_link
		2398
		2399	Freezes the player and moves him/her to a special map (C<{link}>).
		2400
		2401	The player should be reasonably safe there for short amounts of time. You
		2402	I<MUST> call C<leave_link> as soon as possible, though.
		2403
		2404	Will never block.
		2405
		2406	=item $player_object->leave_link ($map, $x, $y)
		2407
		2408	Moves the player out of the special C<{link}> map onto the specified
		2409	map. If the map is not valid (or omitted), the player will be moved back
		2410	to the location he/she was before the call to C<enter_link>, or, if that
		2411	fails, to the emergency map position.
		2412
		2413	Might block.
		2414
		2415	=cut
		2416
		2417	sub link_map {
		2418	unless ($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	$LINK_MAP
		2425	}
		2426
1388	sub cf::object::player::enter_link {	2427	sub cf::object::player::enter_link {
1389	my ($self) = @_;	2428	my ($self) = @_;
1390		2429
1391	return if $self->map == $LINK_MAP;
1392
1393	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1394	if $self->map;
1395
1396	$self->enter_map ($LINK_MAP, 20, 20);
1397	$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);
1398	}	2438	}
1399		2439
1400	sub cf::object::player::leave_link {	2440	sub cf::object::player::leave_link {
1401	my ($self, $map, $x, $y) = @_;	2441	my ($self, $map, $x, $y) = @_;
1402		2442
		2443	return unless $self->contr->active;
		2444
1403	my $link_pos = delete $self->{_link_pos};	2445	my $link_pos = delete $self->{_link_pos};
1404		2446
1405	unless ($map) {	2447	unless ($map) {
1406	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1407
1408	# restore original map position	2448	# restore original map position
1409	($map, $x, $y) = @{ $link_pos || [] };	2449	($map, $x, $y) = @{ $link_pos || [] };
1410	$map = cf::map::find_map $map;	2450	$map = cf::map::find $map;
1411		2451
1412	unless ($map) {	2452	unless ($map) {
1413	($map, $x, $y) = @$EMERGENCY_POSITION;	2453	($map, $x, $y) = @$EMERGENCY_POSITION;
1414	$map = cf::map::find_map $map	2454	$map = cf::map::find $map
1415	or die "FATAL: cannot load emergency map\n";	2455	or die "FATAL: cannot load emergency map\n";
1416	}	2456	}
1417	}	2457	}
1418		2458
1419	($x, $y) = (-1, -1)	2459	($x, $y) = (-1, -1)
…		…
1422	# use -1 or undef as default coordinates, not 0, 0	2462	# use -1 or undef as default coordinates, not 0, 0
1423	($x, $y) = ($map->enter_x, $map->enter_y)	2463	($x, $y) = ($map->enter_x, $map->enter_y)
1424	if $x <=0 && $y <= 0;	2464	if $x <=0 && $y <= 0;
1425		2465
1426	$map->load;	2466	$map->load;
		2467	$map->load_neighbours;
1427		2468
		2469	return unless $self->contr->active;
1428	$self->activate_recursive;	2470	$self->activate_recursive;
		2471
		2472	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1429	$self->enter_map ($map, $x, $y);	2473	$self->enter_map ($map, $x, $y);
1430	}	2474	}
1431		2475
1432	=item $player_object->goto_map ($map, $x, $y)	2476	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1433		2477
1434	=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.
1435		2483
		2484	=cut
		2485
		2486	our $GOTOGEN;
		2487
1436	sub cf::object::player::goto_map {	2488	sub cf::object::player::goto {
1437	my ($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;
1438		2493
1439	$self->enter_link;	2494	$self->enter_link;
1440		2495
1441	(Coro::async {	2496	(async {
1442	$path = new cf::path $path;	2497	$Coro::current->{desc} = "player::goto $path $x $y";
1443		2498
1444	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) {
1445	$map = $map->customise_for ($self) if $map;	2522	$map = $map->customise_for ($self);
		2523	$map = $check->($map) if $check && $map;
		2524	} else {
		2525	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2526	}
1446		2527
1447	warn "entering ", $map->path, " at ($x, $y)\n"
1448	if $map;	2528	$map
		2529	};
1449		2530
		2531	if ($@) {
		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};
1450	$self->leave_link ($map, $x, $y);	2538	$self->leave_link ($map, $x, $y);
		2539	}
		2540
		2541	$done->() if $done;
1451	})->prio (1);	2542	})->prio (1);
1452	}	2543	}
1453		2544
1454	=item $player_object->enter_exit ($exit_object)	2545	=item $player_object->enter_exit ($exit_object)
1455		2546
…		…
1457		2548
1458	sub parse_random_map_params {	2549	sub parse_random_map_params {
1459	my ($spec) = @_;	2550	my ($spec) = @_;
1460		2551
1461	my $rmp = { # defaults	2552	my $rmp = { # defaults
1462	xsize => 10,	2553	xsize => (cf::rndm 15, 40),
1463	ysize => 10,	2554	ysize => (cf::rndm 15, 40),
		2555	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2556	#layout => string,
1464	};	2557	};
1465		2558
1466	for (split /\n/, $spec) {	2559	for (split /\n/, $spec) {
1467	my ($k, $v) = split /\s+/, $_, 2;	2560	my ($k, $v) = split /\s+/, $_, 2;
1468		2561
…		…
1472	$rmp	2565	$rmp
1473	}	2566	}
1474		2567
1475	sub prepare_random_map {	2568	sub prepare_random_map {
1476	my ($exit) = @_;	2569	my ($exit) = @_;
		2570
		2571	my $guard = cf::lock_acquire "exit_prepare:$exit";
1477		2572
1478	# all this does is basically replace the /! path by	2573	# all this does is basically replace the /! path by
1479	# a new random map path (?random/...) with a seed	2574	# a new random map path (?random/...) with a seed
1480	# that depends on the exit object	2575	# that depends on the exit object
1481		2576
1482	my $rmp = parse_random_map_params $exit->msg;	2577	my $rmp = parse_random_map_params $exit->msg;
1483		2578
1484	if ($exit->map) {	2579	if ($exit->map) {
1485	$rmp->{region} = $exit->map->region_name;	2580	$rmp->{region} = $exit->region->name;
1486	$rmp->{origin_map} = $exit->map->path;	2581	$rmp->{origin_map} = $exit->map->path;
1487	$rmp->{origin_x} = $exit->x;	2582	$rmp->{origin_x} = $exit->x;
1488	$rmp->{origin_y} = $exit->y;	2583	$rmp->{origin_y} = $exit->y;
1489	}	2584	}
1490		2585
1491	$rmp->{random_seed} ||= $exit->random_seed;	2586	$rmp->{random_seed} ||= $exit->random_seed;
1492		2587
1493	my $data = cf::to_json $rmp;	2588	my $data = cf::to_json $rmp;
1494	my $md5 = Digest::MD5::md5_hex $data;	2589	my $md5 = Digest::MD5::md5_hex $data;
		2590	my $meta = "$RANDOMDIR/$md5.meta";
1495		2591
1496	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) {
1497	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;
1498		2596
1499	$exit->slaying ("?random/$md5");	2597	$exit->slaying ("?random/$md5");
1500	$exit->msg (undef);	2598	$exit->msg (undef);
1501	}	2599	}
1502	}	2600	}
…		…
1504	sub cf::object::player::enter_exit {	2602	sub cf::object::player::enter_exit {
1505	my ($self, $exit) = @_;	2603	my ($self, $exit) = @_;
1506		2604
1507	return unless $self->type == cf::PLAYER;	2605	return unless $self->type == cf::PLAYER;
1508		2606
		2607	if ($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
1509	$self->enter_link;	2618	$self->enter_link;
1510		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
1511	(Coro::async {	2624	(async {
		2625	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2626
		2627	$self->deactivate_recursive; # just to be sure
1512	unless (eval {	2628	unless (eval {
1513		2629	$self->goto ($slaying, $hp, $sp);
1514	prepare_random_map $exit
1515	if $exit->slaying eq "/!";
1516
1517	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1518	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1519		2630
1520	1;	2631	1;
1521	}) {	2632	}) {
1522	$self->message ("Something went wrong deep within the crossfire server. "	2633	$self->message ("Something went wrong deep within the crossfire server. "
1523	. "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. "
1524	. "Please report this to the dungeon master",	2635	. "Please report this to the dungeon master!",
1525	cf::NDI_UNIQUE | cf::NDI_RED);	2636	cf::NDI_UNIQUE | cf::NDI_RED);
1526		2637
1527	warn "ERROR in enter_exit: $@";	2638	warn "ERROR in enter_exit: $@";
1528	$self->leave_link;	2639	$self->leave_link;
1529	}	2640	}
1530	})->prio (1);	2641	})->prio (1);
…		…
1543		2654
1544	sub cf::client::send_drawinfo {	2655	sub cf::client::send_drawinfo {
1545	my ($self, $text, $flags) = @_;	2656	my ($self, $text, $flags) = @_;
1546		2657
1547	utf8::encode $text;	2658	utf8::encode $text;
1548	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2659	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1549	}	2660	}
1550		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<$color> is negative, suppress
		2667	the message unless the client supports the msg packet.
		2668
		2669	=cut
		2670
		2671	our %CHANNEL = (
		2672	"c/identify" => {
		2673	id => "infobox",
		2674	title => "Identify",
		2675	reply => undef,
		2676	tooltip => "Items recently identified",
		2677	},
		2678	"c/examine" => {
		2679	id => "infobox",
		2680	title => "Examine",
		2681	reply => undef,
		2682	tooltip => "Signs and other items you examined",
		2683	},
		2684	"c/book" => {
		2685	id => "infobox",
		2686	title => "Book",
		2687	reply => undef,
		2688	tooltip => "The contents of a note or book",
		2689	},
		2690	"c/lookat" => {
		2691	id => "infobox",
		2692	title => "Look",
		2693	reply => undef,
		2694	tooltip => "What you saw there",
		2695	},
		2696	);
		2697
		2698	sub cf::client::send_msg {
		2699	my ($self, $channel, $msg, $color, @extra) = @_;
		2700
		2701	$msg = $self->pl->expand_cfpod ($msg);
		2702
		2703	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2704
		2705	# check predefined channels, for the benefit of C
		2706	if ($CHANNEL{$channel}) {
		2707	$channel = $CHANNEL{$channel};
		2708
		2709	$self->ext_msg (channel_info => $channel)
		2710	if $self->can_msg;
		2711
		2712	$channel = $channel->{id};
		2713
		2714	} elsif (ref $channel) {
		2715	# send meta info to client, if not yet sent
		2716	unless (exists $self->{channel}{$channel->{id}}) {
		2717	$self->{channel}{$channel->{id}} = $channel;
		2718	$self->ext_msg (channel_info => $channel)
		2719	if $self->can_msg;
		2720	}
		2721
		2722	$channel = $channel->{id};
		2723	}
		2724
		2725	return unless @extra || length $msg;
		2726
		2727	if ($self->can_msg) {
		2728	# default colour, mask it out
		2729	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2730	if $color & cf::NDI_DEF;
		2731
		2732	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2733	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2734	} else {
		2735	if ($color >= 0) {
		2736	# replace some tags by gcfclient-compatible ones
		2737	for ($msg) {
		2738	1 while
		2739	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2740	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2741	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2742	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2743	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2744	}
		2745
		2746	$color &= cf::NDI_COLOR_MASK;
		2747
		2748	utf8::encode $msg;
		2749
		2750	if (0 && $msg =~ /\[/) {
		2751	# COMMAND/INFO
		2752	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2753	} else {
		2754	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2755	$self->send_packet ("drawinfo $color $msg")
		2756	}
		2757	}
		2758	}
		2759	}
		2760
		2761	=item $client->ext_msg ($type, @msg)
		2762
		2763	Sends an ext event to the client.
		2764
		2765	=cut
		2766
		2767	sub cf::client::ext_msg($$@) {
		2768	my ($self, $type, @msg) = @_;
		2769
		2770	if ($self->extcmd == 2) {
		2771	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2772	} elsif ($self->extcmd == 1) { # TODO: remove
		2773	push @msg, msgtype => "event_$type";
		2774	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2775	}
		2776	}
		2777
		2778	=item $client->ext_reply ($msgid, @msg)
		2779
		2780	Sends an ext reply to the client.
		2781
		2782	=cut
		2783
		2784	sub cf::client::ext_reply($$@) {
		2785	my ($self, $id, @msg) = @_;
		2786
		2787	if ($self->extcmd == 2) {
		2788	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2789	} elsif ($self->extcmd == 1) {
		2790	#TODO: version 1, remove
		2791	unshift @msg, msgtype => "reply", msgid => $id;
		2792	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2793	}
		2794	}
1551		2795
1552	=item $success = $client->query ($flags, "text", \&cb)	2796	=item $success = $client->query ($flags, "text", \&cb)
1553		2797
1554	Queues a query to the client, calling the given callback with	2798	Queues a query to the client, calling the given callback with
1555	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2799	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1556	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2800	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1557		2801
1558	Queries can fail, so check the return code. Or don't, as queries will become	2802	Queries can fail, so check the return code. Or don't, as queries will
1559	reliable at some point in the future.	2803	become reliable at some point in the future.
1560		2804
1561	=cut	2805	=cut
1562		2806
1563	sub cf::client::query {	2807	sub cf::client::query {
1564	my ($self, $flags, $text, $cb) = @_;	2808	my ($self, $flags, $text, $cb) = @_;
…		…
1572	utf8::encode $text;	2816	utf8::encode $text;
1573	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2817	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1574		2818
1575	$self->send_packet ($self->{query_queue}[0][0])	2819	$self->send_packet ($self->{query_queue}[0][0])
1576	if @{ $self->{query_queue} } == 1;	2820	if @{ $self->{query_queue} } == 1;
		2821
		2822	1
1577	}	2823	}
1578		2824
1579	cf::client->attach (	2825	cf::client->attach (
		2826	on_connect => sub {
		2827	my ($ns) = @_;
		2828
		2829	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2830	},
1580	on_reply => sub {	2831	on_reply => sub {
1581	my ($ns, $msg) = @_;	2832	my ($ns, $msg) = @_;
1582		2833
1583	# this weird shuffling is so that direct followup queries	2834	# this weird shuffling is so that direct followup queries
1584	# get handled first	2835	# get handled first
1585	my $queue = delete $ns->{query_queue};	2836	my $queue = delete $ns->{query_queue}
		2837	or return; # be conservative, not sure how that can happen, but we saw a crash here
1586		2838
1587	(shift @$queue)->[1]->($msg);	2839	(shift @$queue)->[1]->($msg);
		2840	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1588		2841
1589	push @{ $ns->{query_queue} }, @$queue;	2842	push @{ $ns->{query_queue} }, @$queue;
1590		2843
1591	if (@{ $ns->{query_queue} } == @$queue) {	2844	if (@{ $ns->{query_queue} } == @$queue) {
1592	if (@$queue) {	2845	if (@$queue) {
…		…
1594	} else {	2847	} else {
1595	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2848	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1596	}	2849	}
1597	}	2850	}
1598	},	2851	},
		2852	on_exticmd => sub {
		2853	my ($ns, $buf) = @_;
		2854
		2855	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2856
		2857	if (ref $msg) {
		2858	my ($type, $reply, @payload) =
		2859	"ARRAY" eq ref $msg
		2860	? @$msg
		2861	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2862
		2863	my @reply;
		2864
		2865	if (my $cb = $EXTICMD{$type}) {
		2866	@reply = $cb->($ns, @payload);
		2867	}
		2868
		2869	$ns->ext_reply ($reply, @reply)
		2870	if $reply;
		2871
		2872	} else {
		2873	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2874	}
		2875
		2876	cf::override;
		2877	},
1599	);	2878	);
1600		2879
1601	=item $client->coro (\&cb)	2880	=item $client->async (\&cb)
1602		2881
1603	Create a new coroutine, running the specified callback. The coroutine will	2882	Create a new coroutine, running the specified callback. The coroutine will
1604	be automatically cancelled when the client gets destroyed (e.g. on logout,	2883	be automatically cancelled when the client gets destroyed (e.g. on logout,
1605	or loss of connection).	2884	or loss of connection).
1606		2885
1607	=cut	2886	=cut
1608		2887
1609	sub cf::client::coro {	2888	sub cf::client::async {
1610	my ($self, $cb) = @_;	2889	my ($self, $cb) = @_;
1611		2890
1612	my $coro; $coro = async {	2891	my $coro = &Coro::async ($cb);
1613	eval {
1614	$cb->();
1615	};
1616	warn $@ if $@;
1617	};
1618		2892
1619	$coro->on_destroy (sub {	2893	$coro->on_destroy (sub {
1620	delete $self->{_coro}{$coro+0};	2894	delete $self->{_coro}{$coro+0};
1621	});	2895	});
1622		2896
…		…
1649	our $safe = new Safe "safe";	2923	our $safe = new Safe "safe";
1650	our $safe_hole = new Safe::Hole;	2924	our $safe_hole = new Safe::Hole;
1651		2925
1652	$SIG{FPE} = 'IGNORE';	2926	$SIG{FPE} = 'IGNORE';
1653		2927
1654	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2928	$safe->permit_only (Opcode::opset qw(
		2929	:base_core :base_mem :base_orig :base_math
		2930	grepstart grepwhile mapstart mapwhile
		2931	sort time
		2932	));
1655		2933
1656	# here we export the classes and methods available to script code	2934	# here we export the classes and methods available to script code
1657		2935
1658	=pod	2936	=pod
1659		2937
1660	The following fucntions and emthods are available within a safe environment:	2938	The following functions and methods are available within a safe environment:
1661		2939
1662	cf::object contr pay_amount pay_player map	2940	cf::object
		2941	contr pay_amount pay_player map x y force_find force_add destroy
		2942	insert remove name archname title slaying race decrease_ob_nr
		2943
1663	cf::object::player player	2944	cf::object::player
1664	cf::player peaceful	2945	player
1665	cf::map trigger	2946
		2947	cf::player
		2948	peaceful
		2949
		2950	cf::map
		2951	trigger
1666		2952
1667	=cut	2953	=cut
1668		2954
1669	for (	2955	for (
1670	["cf::object" => qw(contr pay_amount pay_player map)],	2956	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2957	insert remove inv name archname title slaying race
		2958	decrease_ob_nr destroy)],
1671	["cf::object::player" => qw(player)],	2959	["cf::object::player" => qw(player)],
1672	["cf::player" => qw(peaceful)],	2960	["cf::player" => qw(peaceful)],
1673	["cf::map" => qw(trigger)],	2961	["cf::map" => qw(trigger)],
1674	) {	2962	) {
1675	no strict 'refs';	2963	no strict 'refs';
…		…
1746	=back	3034	=back
1747		3035
1748	=cut	3036	=cut
1749		3037
1750	#############################################################################	3038	#############################################################################
		3039	# the server's init and main functions
1751		3040
1752	=head2 EXTENSION DATABASE SUPPORT	3041	sub load_facedata($) {
		3042	my ($path) = @_;
1753		3043
1754	Crossfire maintains a very simple database for extension use. It can	3044	# HACK to clear player env face cache, we need some signal framework
1755	currently store anything that can be serialised using Storable, which	3045	# for this (global event?)
1756	excludes objects.	3046	%ext::player_env::MUSIC_FACE_CACHE = ();
1757		3047
1758	The parameter C<$family> should best start with the name of the extension	3048	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1759	using it, it should be unique.
1760		3049
1761	=over 4	3050	warn "loading facedata from $path\n";
1762		3051
1763	=item $hashref = cf::db_get $family	3052	my $facedata;
		3053	0 < aio_load $path, $facedata
		3054	or die "$path: $!";
1764		3055
1765	Return a hashref for use by the extension C<$family>, which can be	3056	$facedata = Coro::Storable::thaw $facedata;
1766	modified. After modifications, you have to call C<cf::db_dirty> or
1767	C<cf::db_sync>.
1768		3057
1769	=item $value = cf::db_get $family => $key	3058	$facedata->{version} == 2
		3059	or cf::cleanup "$path: version mismatch, cannot proceed.";
1770		3060
1771	Returns a single value from the database	3061	# patch in the exptable
1772		3062	$facedata->{resource}{"res/exp_table"} = {
1773	=item cf::db_put $family => $hashref	3063	type => FT_RSRC,
1774		3064	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1775	Stores the given family hashref into the database. Updates are delayed, if
1776	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1777
1778	=item cf::db_put $family => $key => $value
1779
1780	Stores the given C<$value> in the family hash. Updates are delayed, if you
1781	want the data to be synced to disk immediately, use C<cf::db_sync>.
1782
1783	=item cf::db_dirty
1784
1785	Marks the database as dirty, to be updated at a later time.
1786
1787	=item cf::db_sync
1788
1789	Immediately write the database to disk I<if it is dirty>.
1790
1791	=cut
1792
1793	our $DB;
1794
1795	{
1796	my $path = cf::localdir . "/database.pst";
1797
1798	sub db_load() {
1799	warn "loading database $path\n";#d# remove later
1800	$DB = stat $path ? Storable::retrieve $path : { };
1801	}
1802
1803	my $pid;
1804
1805	sub db_save() {
1806	warn "saving database $path\n";#d# remove later
1807	waitpid $pid, 0 if $pid;
1808	if (0 == ($pid = fork)) {
1809	$DB->{_meta}{version} = 1;
1810	Storable::nstore $DB, "$path~";
1811	rename "$path~", $path;
1812	cf::_exit 0 if defined $pid;
1813	}
1814	}
1815
1816	my $dirty;
1817
1818	sub db_sync() {
1819	db_save if $dirty;
1820	undef $dirty;
1821	}
1822
1823	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1824	db_sync;
1825	});	3065	};
		3066	cf::cede_to_tick;
1826		3067
1827	sub db_dirty() {
1828	$dirty = 1;
1829	$idle->start;
1830	}	3068	{
		3069	my $faces = $facedata->{faceinfo};
1831		3070
1832	sub db_get($;$) {	3071	while (my ($face, $info) = each %$faces) {
1833	@_ >= 2	3072	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1834	? $DB->{$_[0]}{$_[1]}	3073	cf::face::set_visibility $idx, $info->{visibility};
1835	: ($DB->{$_[0]} ||= { })	3074	cf::face::set_magicmap $idx, $info->{magicmap};
1836	}	3075	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3076	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1837		3077
1838	sub db_put($$;$) {	3078	cf::cede_to_tick;
1839	if (@_ >= 3) {
1840	$DB->{$_[0]}{$_[1]} = $_[2];
1841	} else {
1842	$DB->{$_[0]} = $_[1];
1843	}
1844	db_dirty;
1845	}
1846
1847	cf::global->attach (
1848	prio => 10000,
1849	on_cleanup => sub {
1850	db_sync;
1851	},	3079	}
1852	);
1853	}
1854		3080
1855	#############################################################################	3081	while (my ($face, $info) = each %$faces) {
1856	# the server's main()	3082	next unless $info->{smooth};
		3083	my $idx = cf::face::find $face
		3084	or next;
		3085	if (my $smooth = cf::face::find $info->{smooth}) {
		3086	cf::face::set_smooth $idx, $smooth;
		3087	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3088	} else {
		3089	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3090	}
1857		3091
1858	sub cfg_load {	3092	cf::cede_to_tick;
		3093	}
		3094	}
		3095
		3096	{
		3097	my $anims = $facedata->{animinfo};
		3098
		3099	while (my ($anim, $info) = each %$anims) {
		3100	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3101	cf::cede_to_tick;
		3102	}
		3103
		3104	cf::anim::invalidate_all; # d'oh
		3105	}
		3106
		3107	{
		3108	# TODO: for gcfclient pleasure, we should give resources
		3109	# that gcfclient doesn't grok a >10000 face index.
		3110	my $res = $facedata->{resource};
		3111
		3112	my $soundconf = delete $res->{"res/sound.conf"};
		3113
		3114	while (my ($name, $info) = each %$res) {
		3115	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3116	my $data;
		3117
		3118	if ($info->{type} & 1) {
		3119	# prepend meta info
		3120
		3121	my $meta = $enc->encode ({
		3122	name => $name,
		3123	%{ $info->{meta} || {} },
		3124	});
		3125
		3126	$data = pack "(w/a*)*", $meta, $info->{data};
		3127	} else {
		3128	$data = $info->{data};
		3129	}
		3130
		3131	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3132	cf::face::set_type $idx, $info->{type};
		3133
		3134	cf::cede_to_tick;
		3135	}
		3136
		3137	if ($soundconf) {
		3138	$soundconf = $enc->decode (delete $soundconf->{data});
		3139
		3140	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3141	my $sound = $soundconf->{compat}[$_]
		3142	or next;
		3143
		3144	my $face = cf::face::find "sound/$sound->[1]";
		3145	cf::sound::set $sound->[0] => $face;
		3146	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3147	}
		3148
		3149	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3150	my $face = cf::face::find "sound/$v";
		3151	cf::sound::set $k => $face;
		3152	}
		3153	}
		3154	}
		3155
		3156	1
		3157	}
		3158
		3159	register_exticmd fx_want => sub {
		3160	my ($ns, $want) = @_;
		3161
		3162	while (my ($k, $v) = each %$want) {
		3163	$ns->fx_want ($k, $v);
		3164	}
		3165	};
		3166
		3167	sub reload_regions {
		3168	# HACK to clear player env face cache, we need some signal framework
		3169	# for this (global event?)
		3170	%ext::player_env::MUSIC_FACE_CACHE = ();
		3171
		3172	load_resource_file "$MAPDIR/regions"
		3173	or die "unable to load regions file\n";
		3174
		3175	for (cf::region::list) {
		3176	$_->{match} = qr/$_->{match}/
		3177	if exists $_->{match};
		3178	}
		3179	}
		3180
		3181	sub reload_facedata {
		3182	load_facedata "$DATADIR/facedata"
		3183	or die "unable to load facedata\n";
		3184	}
		3185
		3186	sub reload_archetypes {
		3187	load_resource_file "$DATADIR/archetypes"
		3188	or die "unable to load archetypes\n";
		3189	#d# NEED to laod twice to resolve forward references
		3190	# this really needs to be done in an extra post-pass
		3191	# (which needs to be synchronous, so solve it differently)
		3192	load_resource_file "$DATADIR/archetypes"
		3193	or die "unable to load archetypes\n";
		3194	}
		3195
		3196	sub reload_treasures {
		3197	load_resource_file "$DATADIR/treasures"
		3198	or die "unable to load treasurelists\n";
		3199	}
		3200
		3201	sub reload_resources {
		3202	warn "reloading resource files...\n";
		3203
		3204	reload_regions;
		3205	reload_facedata;
		3206	#reload_archetypes;#d#
		3207	reload_archetypes;
		3208	reload_treasures;
		3209
		3210	warn "finished reloading resource files\n";
		3211	}
		3212
		3213	sub init {
		3214	reload_resources;
		3215	}
		3216
		3217	sub reload_config {
1859	open my $fh, "<:utf8", cf::confdir . "/config"	3218	open my $fh, "<:utf8", "$CONFDIR/config"
1860	or return;	3219	or return;
1861		3220
1862	local $/;	3221	local $/;
1863	*CFG = YAML::Syck::Load <$fh>;	3222	*CFG = YAML::Syck::Load <$fh>;
		3223
		3224	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3225
		3226	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3227	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3228
		3229	if (exists $CFG{mlockall}) {
		3230	eval {
		3231	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3232	and die "WARNING: m(un)lockall failed: $!\n";
		3233	};
		3234	warn $@ if $@;
		3235	}
1864	}	3236	}
1865		3237
1866	sub main {	3238	sub main {
1867	# we must not ever block the main coroutine	3239	# we must not ever block the main coroutine
1868	local $Coro::idle = sub {	3240	local $Coro::idle = sub {
1869	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3241	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1870	(Coro::unblock_sub {	3242	(async {
		3243	$Coro::current->{desc} = "IDLE BUG HANDLER";
1871	Event::one_event;	3244	Event::one_event;
1872	})->();	3245	})->prio (Coro::PRIO_MAX);
1873	};	3246	};
1874		3247
1875	cfg_load;	3248	reload_config;
1876	db_load;	3249	db_init;
1877	load_extensions;	3250	load_extensions;
		3251
		3252	$TICK_WATCHER->start;
1878	Event::loop;	3253	Event::loop;
1879	}	3254	}
1880		3255
1881	#############################################################################	3256	#############################################################################
1882	# initialisation	3257	# initialisation and cleanup
1883		3258
		3259	# install some emergency cleanup handlers
		3260	BEGIN {
		3261	for my $signal (qw(INT HUP TERM)) {
		3262	Event->signal (
		3263	reentrant => 0,
		3264	data => WF_AUTOCANCEL,
		3265	signal => $signal,
		3266	prio => 0,
		3267	cb => sub {
		3268	cf::cleanup "SIG$signal";
		3269	},
		3270	);
		3271	}
		3272	}
		3273
		3274	sub write_runtime {
		3275	my $runtime = "$LOCALDIR/runtime";
		3276
		3277	# first touch the runtime file to show we are still running:
		3278	# the fsync below can take a very very long time.
		3279
		3280	IO::AIO::aio_utime $runtime, undef, undef;
		3281
		3282	my $guard = cf::lock_acquire "write_runtime";
		3283
		3284	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3285	or return;
		3286
		3287	my $value = $cf::RUNTIME + 90 + 10;
		3288	# 10 is the runtime save interval, for a monotonic clock
		3289	# 60 allows for the watchdog to kill the server.
		3290
		3291	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3292	and return;
		3293
		3294	# always fsync - this file is important
		3295	aio_fsync $fh
		3296	and return;
		3297
		3298	# touch it again to show we are up-to-date
		3299	aio_utime $fh, undef, undef;
		3300
		3301	close $fh
		3302	or return;
		3303
		3304	aio_rename "$runtime~", $runtime
		3305	and return;
		3306
		3307	warn "runtime file written.\n";
		3308
		3309	1
		3310	}
		3311
		3312	sub emergency_save() {
		3313	my $freeze_guard = cf::freeze_mainloop;
		3314
		3315	warn "enter emergency perl save\n";
		3316
		3317	cf::sync_job {
		3318	# use a peculiar iteration method to avoid tripping on perl
		3319	# refcount bugs in for. also avoids problems with players
		3320	# and maps saved/destroyed asynchronously.
		3321	warn "begin emergency player save\n";
		3322	for my $login (keys %cf::PLAYER) {
		3323	my $pl = $cf::PLAYER{$login} or next;
		3324	$pl->valid or next;
		3325	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3326	$pl->save;
		3327	}
		3328	warn "end emergency player save\n";
		3329
		3330	warn "begin emergency map save\n";
		3331	for my $path (keys %cf::MAP) {
		3332	my $map = $cf::MAP{$path} or next;
		3333	$map->valid or next;
		3334	$map->save;
		3335	}
		3336	warn "end emergency map save\n";
		3337
		3338	warn "begin emergency database checkpoint\n";
		3339	BDB::db_env_txn_checkpoint $DB_ENV;
		3340	warn "end emergency database checkpoint\n";
		3341	};
		3342
		3343	warn "leave emergency perl save\n";
		3344	}
		3345
		3346	sub post_cleanup {
		3347	my ($make_core) = @_;
		3348
		3349	warn Carp::longmess "post_cleanup backtrace"
		3350	if $make_core;
		3351	}
		3352
1884	sub reload() {	3353	sub do_reload_perl() {
1885	# can/must only be called in main	3354	# can/must only be called in main
1886	if ($Coro::current != $Coro::main) {	3355	if ($Coro::current != $Coro::main) {
1887	warn "can only reload from main coroutine\n";	3356	warn "can only reload from main coroutine";
1888	return;	3357	return;
1889	}	3358	}
1890		3359
1891	warn "reloading...";	3360	warn "reloading...";
1892		3361
1893	local $FREEZE = 1;	3362	warn "entering sync_job";
		3363
		3364	cf::sync_job {
		3365	cf::write_runtime; # external watchdog should not bark
1894	cf::emergency_save;	3366	cf::emergency_save;
		3367	cf::write_runtime; # external watchdog should not bark
1895		3368
1896	eval {	3369	warn "syncing database to disk";
		3370	BDB::db_env_txn_checkpoint $DB_ENV;
		3371
1897	# if anything goes wrong in here, we should simply crash as we already saved	3372	# if anything goes wrong in here, we should simply crash as we already saved
1898		3373
1899	# cancel all watchers	3374	warn "cancelling all WF_AUTOCANCEL watchers";
1900	for (Event::all_watchers) {	3375	for (Event::all_watchers) {
1901	$_->cancel if $_->data & WF_AUTOCANCEL;	3376	$_->cancel if $_->data & WF_AUTOCANCEL;
1902	}	3377	}
1903		3378
		3379	warn "flushing outstanding aio requests";
		3380	for (;;) {
		3381	BDB::flush;
		3382	IO::AIO::flush;
		3383	Coro::cede_notself;
		3384	last unless IO::AIO::nreqs || BDB::nreqs;
		3385	warn "iterate...";
		3386	}
		3387
		3388	++$RELOAD;
		3389
1904	# cancel all extension coros	3390	warn "cancelling all extension coros";
1905	$_->cancel for values %EXT_CORO;	3391	$_->cancel for values %EXT_CORO;
1906	%EXT_CORO = ();	3392	%EXT_CORO = ();
1907		3393
1908	# unload all extensions	3394	warn "removing commands";
1909	for (@exts) {	3395	%COMMAND = ();
		3396
		3397	warn "removing ext/exti commands";
		3398	%EXTCMD = ();
		3399	%EXTICMD = ();
		3400
		3401	warn "unloading/nuking all extensions";
		3402	for my $pkg (@EXTS) {
1910	warn "unloading <$_>";	3403	warn "... unloading $pkg";
1911	unload_extension $_;	3404
		3405	if (my $cb = $pkg->can ("unload")) {
		3406	eval {
		3407	$cb->($pkg);
		3408	1
		3409	} or warn "$pkg unloaded, but with errors: $@";
1912	}	3410	}
1913		3411
		3412	warn "... nuking $pkg";
		3413	Symbol::delete_package $pkg;
		3414	}
		3415
1914	# unload all modules loaded from $LIBDIR	3416	warn "unloading all perl modules loaded from $LIBDIR";
1915	while (my ($k, $v) = each %INC) {	3417	while (my ($k, $v) = each %INC) {
1916	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3418	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1917		3419
1918	warn "removing <$k>";	3420	warn "... unloading $k";
1919	delete $INC{$k};	3421	delete $INC{$k};
1920		3422
1921	$k =~ s/\.pm$//;	3423	$k =~ s/\.pm$//;
1922	$k =~ s/\//::/g;	3424	$k =~ s/\//::/g;
1923		3425
…		…
1926	}	3428	}
1927		3429
1928	Symbol::delete_package $k;	3430	Symbol::delete_package $k;
1929	}	3431	}
1930		3432
1931	# sync database to disk
1932	cf::db_sync;
1933	IO::AIO::flush;
1934
1935	# get rid of safe::, as good as possible	3433	warn "getting rid of safe::, as good as possible";
1936	Symbol::delete_package "safe::$_"	3434	Symbol::delete_package "safe::$_"
1937	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3435	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1938		3436
1939	# remove register_script_function callbacks
1940	# TODO
1941
1942	# unload cf.pm "a bit"	3437	warn "unloading cf.pm \"a bit\"";
1943	delete $INC{"cf.pm"};	3438	delete $INC{"cf.pm"};
		3439	delete $INC{"cf/pod.pm"};
1944		3440
1945	# don't, removes xs symbols, too,	3441	# don't, removes xs symbols, too,
1946	# and global variables created in xs	3442	# and global variables created in xs
1947	#Symbol::delete_package __PACKAGE__;	3443	#Symbol::delete_package __PACKAGE__;
1948		3444
1949	# reload cf.pm	3445	warn "unload completed, starting to reload now";
		3446
1950	warn "reloading cf.pm";	3447	warn "reloading cf.pm";
1951	require cf;	3448	require cf;
1952	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3449	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1953		3450
1954	# load config and database again	3451	warn "loading config and database again";
1955	cf::cfg_load;	3452	cf::reload_config;
1956	cf::db_load;
1957		3453
1958	# load extensions
1959	warn "load extensions";	3454	warn "loading extensions";
1960	cf::load_extensions;	3455	cf::load_extensions;
1961		3456
1962	# reattach attachments to objects	3457	warn "reattaching attachments to objects/players";
1963	warn "reattach";	3458	_global_reattach; # objects, sockets
1964	_global_reattach;	3459	warn "reattaching attachments to maps";
1965	};	3460	reattach $_ for values %MAP;
		3461	warn "reattaching attachments to players";
		3462	reattach $_ for values %PLAYER;
1966		3463
1967	if ($@) {	3464	warn "leaving sync_job";
		3465
		3466	1
		3467	} or do {
1968	warn $@;	3468	warn $@;
1969	warn "error while reloading, exiting.";	3469	warn "error while reloading, exiting.";
1970	exit 1;	3470	exit 1;
1971	}	3471	};
1972		3472
1973	warn "reloaded successfully";	3473	warn "reloaded";
1974	};	3474	};
1975		3475
1976	#############################################################################	3476	our $RELOAD_WATCHER; # used only during reload
1977		3477
1978	unless ($LINK_MAP) {	3478	sub reload_perl() {
1979	$LINK_MAP = cf::map::new;	3479	# doing reload synchronously and two reloads happen back-to-back,
		3480	# coro crashes during coro_state_free->destroy here.
1980		3481
1981	$LINK_MAP->width (41);	3482	$RELOAD_WATCHER ||= Event->timer (
1982	$LINK_MAP->height (41);	3483	reentrant => 0,
1983	$LINK_MAP->alloc;
1984	$LINK_MAP->path ("{link}");
1985	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1986	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1987
1988	# dirty hack because... archetypes are not yet loaded
1989	Event->timer (
1990	after => 2,	3484	after => 0,
		3485	data => WF_AUTOCANCEL,
1991	cb => sub {	3486	cb => sub {
1992	$_[0]->w->cancel;	3487	do_reload_perl;
1993		3488	undef $RELOAD_WATCHER;
1994	# provide some exits "home"
1995	my $exit = cf::object::new "exit";
1996
1997	$exit->slaying ($EMERGENCY_POSITION->[0]);
1998	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1999	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2000
2001	$LINK_MAP->insert ($exit->clone, 19, 19);
2002	$LINK_MAP->insert ($exit->clone, 19, 20);
2003	$LINK_MAP->insert ($exit->clone, 19, 21);
2004	$LINK_MAP->insert ($exit->clone, 20, 19);
2005	$LINK_MAP->insert ($exit->clone, 20, 21);
2006	$LINK_MAP->insert ($exit->clone, 21, 19);
2007	$LINK_MAP->insert ($exit->clone, 21, 20);
2008	$LINK_MAP->insert ($exit->clone, 21, 21);
2009
2010	$exit->destroy;
2011	});	3489	},
2012		3490	);
2013	$LINK_MAP->{deny_save} = 1;
2014	$LINK_MAP->{deny_reset} = 1;
2015
2016	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2017	}	3491	}
2018
2019	register "<global>", __PACKAGE__;
2020		3492
2021	register_command "reload" => sub {	3493	register_command "reload" => sub {
2022	my ($who, $arg) = @_;	3494	my ($who, $arg) = @_;
2023		3495
2024	if ($who->flag (FLAG_WIZ)) {	3496	if ($who->flag (FLAG_WIZ)) {
2025	$who->message ("start of reload.");
2026	reload;
2027	$who->message ("end of reload.");	3497	$who->message ("reloading server.");
		3498	async {
		3499	$Coro::current->{desc} = "perl_reload";
		3500	reload_perl;
		3501	};
2028	}	3502	}
2029	};	3503	};
2030		3504
2031	unshift @INC, $LIBDIR;	3505	unshift @INC, $LIBDIR;
		3506
		3507	my $bug_warning = 0;
		3508
		3509	our @WAIT_FOR_TICK;
		3510	our @WAIT_FOR_TICK_BEGIN;
		3511
		3512	sub wait_for_tick {
		3513	return unless $TICK_WATCHER->is_active;
		3514	return if $Coro::current == $Coro::main;
		3515
		3516	my $signal = new Coro::Signal;
		3517	push @WAIT_FOR_TICK, $signal;
		3518	$signal->wait;
		3519	}
		3520
		3521	sub wait_for_tick_begin {
		3522	return unless $TICK_WATCHER->is_active;
		3523	return if $Coro::current == $Coro::main;
		3524
		3525	my $signal = new Coro::Signal;
		3526	push @WAIT_FOR_TICK_BEGIN, $signal;
		3527	$signal->wait;
		3528	}
2032		3529
2033	$TICK_WATCHER = Event->timer (	3530	$TICK_WATCHER = Event->timer (
2034	reentrant => 0,	3531	reentrant => 0,
		3532	parked => 1,
2035	prio => 0,	3533	prio => 0,
2036	at => $NEXT_TICK || $TICK,	3534	at => $NEXT_TICK || $TICK,
2037	data => WF_AUTOCANCEL,	3535	data => WF_AUTOCANCEL,
2038	cb => sub {	3536	cb => sub {
2039	unless ($FREEZE) {	3537	if ($Coro::current != $Coro::main) {
		3538	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3539	unless ++$bug_warning > 10;
		3540	return;
		3541	}
		3542
		3543	$NOW = $tick_start = Event::time;
		3544
2040	cf::server_tick; # one server iteration	3545	cf::server_tick; # one server iteration
		3546
2041	$RUNTIME += $TICK;	3547	$RUNTIME += $TICK;
2042	}
2043
2044	$NEXT_TICK += $TICK;	3548	$NEXT_TICK += $TICK;
2045		3549
		3550	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3551	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3552	Coro::async_pool {
		3553	$Coro::current->{desc} = "runtime saver";
		3554	write_runtime
		3555	or warn "ERROR: unable to write runtime file: $!";
		3556	};
		3557	}
		3558
		3559	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3560	$sig->send;
		3561	}
		3562	while (my $sig = shift @WAIT_FOR_TICK) {
		3563	$sig->send;
		3564	}
		3565
		3566	$NOW = Event::time;
		3567
2046	# if we are delayed by four ticks or more, skip them all	3568	# if we are delayed by four ticks or more, skip them all
2047	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3569	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2048		3570
2049	$TICK_WATCHER->at ($NEXT_TICK);	3571	$TICK_WATCHER->at ($NEXT_TICK);
2050	$TICK_WATCHER->start;	3572	$TICK_WATCHER->start;
		3573
		3574	$LOAD = ($NOW - $tick_start) / $TICK;
		3575	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3576
		3577	_post_tick;
2051	},	3578	},
2052	);	3579	);
2053		3580
		3581	{
		3582	BDB::min_parallel 8;
2054	IO::AIO::max_poll_time $TICK * 0.2;	3583	BDB::max_poll_time $TICK * 0.1;
2055		3584	$BDB_POLL_WATCHER = Event->io (
2056	Event->io (	3585	reentrant => 0,
2057	fd => IO::AIO::poll_fileno,	3586	fd => BDB::poll_fileno,
2058	poll => 'r',	3587	poll => 'r',
2059	prio => 5,	3588	prio => 0,
2060	data => WF_AUTOCANCEL,
2061	cb => \&IO::AIO::poll_cb,
2062	);
2063
2064	Event->timer (
2065	data => WF_AUTOCANCEL,	3589	data => WF_AUTOCANCEL,
		3590	cb => \&BDB::poll_cb,
		3591	);
		3592
		3593	BDB::set_sync_prepare {
		3594	my $status;
		3595	my $current = $Coro::current;
		3596	(
		3597	sub {
		3598	$status = $!;
		3599	$current->ready; undef $current;
		3600	},
		3601	sub {
		3602	Coro::schedule while defined $current;
		3603	$! = $status;
		3604	},
		3605	)
		3606	};
		3607
		3608	unless ($DB_ENV) {
		3609	$DB_ENV = BDB::db_env_create;
		3610	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3611	| BDB::LOG_AUTOREMOVE, 1);
		3612	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3613	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3614
		3615	cf::sync_job {
		3616	eval {
		3617	BDB::db_env_open
		3618	$DB_ENV,
		3619	$BDBDIR,
		3620	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3621	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3622	0666;
		3623
		3624	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3625	};
		3626
		3627	cf::cleanup "db_env_open(db): $@" if $@;
		3628	};
		3629	}
		3630
		3631	$BDB_DEADLOCK_WATCHER = Event->timer (
2066	after => 0,	3632	after => 3,
2067	interval => 10,	3633	interval => 1,
		3634	hard => 1,
		3635	prio => 0,
		3636	data => WF_AUTOCANCEL,
2068	cb => sub {	3637	cb => sub {
2069	(Coro::unblock_sub {	3638	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2070	write_runtime	3639	},
2071	or warn "ERROR: unable to write runtime file: $!";	3640	);
		3641	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3642	after => 11,
		3643	interval => 60,
		3644	hard => 1,
		3645	prio => 0,
		3646	data => WF_AUTOCANCEL,
		3647	cb => sub {
		3648	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3649	},
		3650	);
		3651	$BDB_TRICKLE_WATCHER = Event->timer (
		3652	after => 5,
		3653	interval => 10,
		3654	hard => 1,
		3655	prio => 0,
		3656	data => WF_AUTOCANCEL,
		3657	cb => sub {
		3658	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3659	},
		3660	);
		3661	}
		3662
		3663	{
		3664	IO::AIO::min_parallel 8;
		3665
		3666	undef $Coro::AIO::WATCHER;
		3667	IO::AIO::max_poll_time $TICK * 0.1;
		3668	$AIO_POLL_WATCHER = Event->io (
		3669	reentrant => 0,
		3670	data => WF_AUTOCANCEL,
		3671	fd => IO::AIO::poll_fileno,
		3672	poll => 'r',
		3673	prio => 0,
		3674	cb => \&IO::AIO::poll_cb,
		3675	);
		3676	}
		3677
		3678	my $_log_backtrace;
		3679
		3680	sub _log_backtrace {
		3681	my ($msg, @addr) = @_;
		3682
		3683	$msg =~ s/\n//;
		3684
		3685	# limit the # of concurrent backtraces
		3686	if ($_log_backtrace < 2) {
		3687	++$_log_backtrace;
		3688	async {
		3689	$Coro::current->{desc} = "abt $msg";
		3690
		3691	my @bt = fork_call {
		3692	@addr = map { sprintf "%x", $_ } @addr;
		3693	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3694	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3695	or die "addr2line: $!";
		3696
		3697	my @funcs;
		3698	my @res = <$fh>;
		3699	chomp for @res;
		3700	while (@res) {
		3701	my ($func, $line) = splice @res, 0, 2, ();
		3702	push @funcs, "[$func] $line";
		3703	}
		3704
		3705	@funcs
		3706	};
		3707
		3708	LOG llevInfo, "[ABT] $msg\n";
		3709	LOG llevInfo, "[ABT] $_\n" for @bt;
		3710	--$_log_backtrace;
2072	})->();	3711	};
		3712	} else {
		3713	LOG llevInfo, "[ABT] $msg\n";
		3714	LOG llevInfo, "[ABT] [suppressed]\n";
2073	},	3715	}
2074	);	3716	}
		3717
		3718	# load additional modules
		3719	use cf::pod;
		3720
		3721	END { cf::emergency_save }
2075		3722
2076	1	3723	1
2077		3724

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