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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.113 by root, Mon Jan 1 15:32:40 2007 UTC vs.
Revision 1.394 by root, Thu Nov 8 19:43:25 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 Deliantra 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 Deliantra 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	if ($path =~ s{^\?random/}{}) {
295	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
296	$self->{random} = cf::from_json $data;
297	} else {
298	if ($path =~ s{^~([^/]+)?}{}) {
299	$self->{user_rel} = 1;
300
301	if (defined $1) {
302	$self->{user} = $1;
303	} elsif ($base =~ m{^~([^/]+)/}) {
304	$self->{user} = $1;
305	} else {
306	warn "cannot resolve user-relative path without user <$path,$base>\n";
307	}
308	} elsif ($path =~ /^\//) {
309	# already absolute
310	} else {
311	$base =~ s{[^/]+/?$}{};
312	return $class->new ("$base/$path");
313	}
314
315	for ($path) {
316	redo if s{/\.?/}{/};
317	redo if s{/[^/]+/\.\./}{/};
318	}
319	}
320
321	$self->{path} = $path;
322
323	$self
324	}
325
326	# the name / primary key / in-game path
327	sub as_string {
328	my ($self) = @_;
329
330	$self->{user_rel} ? "~$self->{user}$self->{path}"
331	: $self->{random} ? "?random/$self->{path}"
332	: $self->{path}
333	}
334
335	# the displayed name, this is a one way mapping
336	sub visible_name {
337	my ($self) = @_;
338
339	# if (my $rmp = $self->{random}) {
340	# # todo: be more intelligent about this
341	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
342	# } else {
343	$self->as_string
344	# }
345	}
346
347	# escape the /'s in the path
348	sub _escaped_path {
349	# ∕ is U+2215
350	(my $path = $_[0]{path}) =~ s/\//∕/g;
351	$path
352	}
353
354	# the original (read-only) location
355	sub load_path {
356	my ($self) = @_;
357
358	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
359	}
360
361	# the temporary/swap location
362	sub save_path {
363	my ($self) = @_;
364
365	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
366	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
367	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
368	}
369
370	# the unique path, might be eq to save_path
371	sub uniq_path {
372	my ($self) = @_;
373
374	$self->{user_rel} || $self->{random}
375	? undef
376	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
377	}
378
379	# return random map parameters, or undef
380	sub random_map_params {
381	my ($self) = @_;
382
383	$self->{random}
384	}
385
386	# this is somewhat ugly, but style maps do need special treatment
387	sub is_style_map {
388	$_[0]{path} =~ m{^/styles/}
389	}
390
391	package cf;
392		656
393	#############################################################################	657	#############################################################################
394		658
395	=head2 ATTACHABLE OBJECTS	659	=head2 ATTACHABLE OBJECTS
396		660
…		…
398	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")
399	to it. All such attachable objects support the following methods.	663	to it. All such attachable objects support the following methods.
400		664
401	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>
402	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
403	crossfire+).	667	Deliantra).
404		668
405	=over 4	669	=over 4
406		670
407	=item $attachable->attach ($attachment, key => $value...)	671	=item $attachable->attach ($attachment, key => $value...)
408		672
…		…
522	our @CB_TYPE = (); # registry for type (cf-object class) based events	786	our @CB_TYPE = (); # registry for type (cf-object class) based events
523	our @CB_MAP = ();	787	our @CB_MAP = ();
524		788
525	my %attachment;	789	my %attachment;
526		790
		791	sub cf::attachable::thawer_merge {
		792	# simply override everything except _meta
		793	local $_[0]{_meta};
		794	%{$_[0]} = %{$_[1]};
		795	}
		796
527	sub _attach_cb($$$$) {	797	sub _attach_cb($$$$) {
528	my ($registry, $event, $prio, $cb) = @_;	798	my ($registry, $event, $prio, $cb) = @_;
529		799
530	use sort 'stable';	800	use sort 'stable';
531		801
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	835	$registry = $CB_TYPE[$object_type] ||= [];
566		836
567	} elsif ($type eq "subtype") {	837	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	838	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	839	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	840	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		841
572	} elsif ($type eq "package") {	842	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	843	my $pkg = shift @arg;
574		844
575	while (my ($name, $id) = each %cb_id) {	845	while (my ($name, $id) = each %cb_id) {
…		…
604	_attach $registry, $klass, @attach;	874	_attach $registry, $klass, @attach;
605	}	875	}
606		876
607	$obj->{$name} = \%arg;	877	$obj->{$name} = \%arg;
608	} else {	878	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	879	warn "object uses attachment '$name' which is not available, postponing.\n";
610	}	880	}
611		881
612	$obj->{_attachment}{$name} = undef;	882	$obj->{_attachment}{$name} = undef;
613	}	883	}
614		884
…		…
616	if (ref $_[0]) {	886	if (ref $_[0]) {
617	_object_attach @_;	887	_object_attach @_;
618	} else {	888	} else {
619	_attach shift->_attach_registry, @_;	889	_attach shift->_attach_registry, @_;
620	}	890	}
		891	_recalc_want;
621	};	892	};
622		893
623	# all those should be optimised	894	# all those should be optimised
624	sub cf::attachable::detach {	895	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	896	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	899	delete $obj->{_attachment}{$name};
629	reattach ($obj);	900	reattach ($obj);
630	} else {	901	} else {
631	Carp::croak "cannot, currently, detach class attachments";	902	Carp::croak "cannot, currently, detach class attachments";
632	}	903	}
		904	_recalc_want;
633	};	905	};
634		906
635	sub cf::attachable::attached {	907	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	908	my ($obj, $name) = @_;
637		909
…		…
652	";	924	";
653	die if $@;	925	die if $@;
654	}	926	}
655		927
656	our $override;	928	our $override;
657	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?
658		930
659	sub override {	931	sub override {
660	$override = 1;	932	$override = 1;
661	@invoke_results = ();	933	@INVOKE_RESULTS = (@_);
662	}	934	}
663		935
664	sub do_invoke {	936	sub do_invoke {
665	my $event = shift;	937	my $event = shift;
666	my $callbacks = shift;	938	my $callbacks = shift;
667		939
668	@invoke_results = ();	940	@INVOKE_RESULTS = ();
669		941
670	local $override;	942	local $override;
671		943
672	for (@$callbacks) {	944	for (@$callbacks) {
673	eval { &{$_->[1]} };	945	eval { &{$_->[1]} };
…		…
690		962
691	Generate an object-specific event with the given arguments.	963	Generate an object-specific event with the given arguments.
692		964
693	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
694	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
695	results (if you must, access C<@cf::invoke_results> directly).	967	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
696		968
697	=back	969	=back
698		970
699	=cut	971	=cut
700		972
701	#############################################################################	973	#############################################################################
702	# object support	974	# object support
		975
		976	sub _object_equal($$);
		977	sub _object_equal($$) {
		978	my ($a, $b) = @_;
		979
		980	return 0 unless (ref $a) eq (ref $b);
		981
		982	if ("HASH" eq ref $a) {
		983	my @ka = keys %$a;
		984	my @kb = keys %$b;
		985
		986	return 0 if @ka != @kb;
		987
		988	for (0 .. $#ka) {
		989	return 0 unless $ka[$_] eq $kb[$_];
		990	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		991	}
		992
		993	} elsif ("ARRAY" eq ref $a) {
		994
		995	return 0 if @$a != @$b;
		996
		997	for (0 .. $#$a) {
		998	return 0 unless _object_equal $a->[$_], $b->[$_];
		999	}
		1000
		1001	} elsif ($a ne $b) {
		1002	return 0;
		1003	}
		1004
		1005	1
		1006	}
		1007
		1008	our $SLOW_MERGES;#d#
		1009	sub _can_merge {
		1010	my ($ob1, $ob2) = @_;
		1011
		1012	++$SLOW_MERGES;#d#
		1013
		1014	# we do the slow way here
		1015	return _object_equal $ob1, $ob2
		1016	}
703		1017
704	sub reattach {	1018	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	1019	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	1020	my ($obj) = @_;
		1021
		1022	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
707		1023
708	my $registry = $obj->registry;	1024	my $registry = $obj->registry;
709		1025
710	@$registry = ();	1026	@$registry = ();
711		1027
…		…
752	sub object_freezer_save {	1068	sub object_freezer_save {
753	my ($filename, $rdata, $objs) = @_;	1069	my ($filename, $rdata, $objs) = @_;
754		1070
755	sync_job {	1071	sync_job {
756	if (length $$rdata) {	1072	if (length $$rdata) {
		1073	utf8::decode (my $decname = $filename);
757	warn sprintf "saving %s (%d,%d)\n",	1074	warn sprintf "saving %s (%d,%d)\n",
758	$filename, length $$rdata, scalar @$objs;	1075	$decname, length $$rdata, scalar @$objs;
759		1076
760	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1077	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
761	chmod SAVE_MODE, $fh;	1078	chmod SAVE_MODE, $fh;
762	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1079	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
763	aio_fsync $fh;	1080	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	1081	close $fh;
765		1082
766	if (@$objs) {	1083	if (@$objs) {
767	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) {
768	chmod SAVE_MODE, $fh;	1085	chmod SAVE_MODE, $fh;
769	my $data = Storable::nfreeze { version => 1, objs => $objs };	1086	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
770	aio_write $fh, 0, (length $data), $data, 0;	1087	aio_write $fh, 0, (length $data), $data, 0;
771	aio_fsync $fh;	1088	aio_fsync $fh if $cf::USE_FSYNC;
772	close $fh;	1089	close $fh;
773	aio_rename "$filename.pst~", "$filename.pst";	1090	aio_rename "$filename.pst~", "$filename.pst";
774	}	1091	}
775	} else {	1092	} else {
776	aio_unlink "$filename.pst";	1093	aio_unlink "$filename.pst";
…		…
782	}	1099	}
783	} else {	1100	} else {
784	aio_unlink $filename;	1101	aio_unlink $filename;
785	aio_unlink "$filename.pst";	1102	aio_unlink "$filename.pst";
786	}	1103	}
787	}	1104	};
788	}	1105	}
789		1106
790	sub object_freezer_as_string {	1107	sub object_freezer_as_string {
791	my ($rdata, $objs) = @_;	1108	my ($rdata, $objs) = @_;
792		1109
…		…
804	or return;	1121	or return;
805		1122
806	unless (aio_stat "$filename.pst") {	1123	unless (aio_stat "$filename.pst") {
807	(aio_load "$filename.pst", $av) >= 0	1124	(aio_load "$filename.pst", $av) >= 0
808	or return;	1125	or return;
		1126
809	$av = eval { (Storable::thaw $av)->{objs} };	1127	my $st = eval { Coro::Storable::thaw $av };
		1128	$av = $st->{objs};
810	}	1129	}
811		1130
		1131	utf8::decode (my $decname = $filename);
		1132	warn sprintf "loading %s (%d,%d)\n",
		1133	$decname, length $data, scalar @{$av || []};
		1134
812	return ($data, $av);	1135	($data, $av)
813	}	1136	}
		1137
		1138	=head2 COMMAND CALLBACKS
		1139
		1140	=over 4
		1141
		1142	=cut
814		1143
815	#############################################################################	1144	#############################################################################
816	# command handling &c	1145	# command handling &c
817		1146
818	=item cf::register_command $name => \&callback($ob,$args);	1147	=item cf::register_command $name => \&callback($ob,$args);
…		…
831	push @{ $COMMAND{$name} }, [$caller, $cb];	1160	push @{ $COMMAND{$name} }, [$caller, $cb];
832	}	1161	}
833		1162
834	=item cf::register_extcmd $name => \&callback($pl,$packet);	1163	=item cf::register_extcmd $name => \&callback($pl,$packet);
835		1164
836	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.
837		1170
838	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
839	called.	1172	called.
840		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
841	=cut	1185	=cut
842		1186
843	sub register_extcmd {	1187	sub register_extcmd {
844	my ($name, $cb) = @_;	1188	my ($name, $cb) = @_;
845		1189
846	my $caller = caller;
847	#warn "registering extcmd '$name' to '$caller'";
848
849	$EXTCMD{$name} = [$cb, $caller];	1190	$EXTCMD{$name} = $cb;
		1191	}
		1192
		1193	sub register_exticmd {
		1194	my ($name, $cb) = @_;
		1195
		1196	$EXTICMD{$name} = $cb;
850	}	1197	}
851		1198
852	cf::player->attach (	1199	cf::player->attach (
853	on_command => sub {	1200	on_command => sub {
854	my ($pl, $name, $params) = @_;	1201	my ($pl, $name, $params) = @_;
…		…
863	cf::override;	1210	cf::override;
864	},	1211	},
865	on_extcmd => sub {	1212	on_extcmd => sub {
866	my ($pl, $buf) = @_;	1213	my ($pl, $buf) = @_;
867		1214
868	my $msg = eval { from_json $buf };	1215	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
869		1216
870	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
871	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1225	if (my $cb = $EXTCMD{$type}) {
872	if (my %reply = $cb->[0]->($pl, $msg)) {	1226	@reply = $cb->($pl, @payload);
873	$pl->ext_reply ($msg->{msgid}, %reply);
874	}
875	}	1227	}
		1228
		1229	$pl->ext_reply ($reply, @reply)
		1230	if $reply;
		1231
876	} else {	1232	} else {
877	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1233	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
878	}	1234	}
879		1235
880	cf::override;	1236	cf::override;
881	},	1237	},
882	);	1238	);
883		1239
884	sub register {
885	my ($base, $pkg) = @_;
886
887	#TODO
888	}
889
890	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	use re 'eval';
		1554
		1555	my $group;
		1556	my $interior; $interior = qr{
		1557	# match a pod interior sequence sans C<< >>
		1558	(?:
		1559	\ (.*?)\ (?{ $group = $^N })
		1560	| < (??{$interior}) >
		1561	)
		1562	}x;
		1563
		1564	sub expand_cfpod {
		1565	my ($self, $pod) = @_;
		1566
		1567	my $xml;
		1568
		1569	while () {
		1570	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1571	$group = $1;
		1572
		1573	$group =~ s/&/&amp;/g;
		1574	$group =~ s/</&lt;/g;
		1575
		1576	$xml .= $group;
		1577	} elsif ($pod =~ m%\G
		1578	([BCGHITU])
		1579	<
		1580	(?:
		1581	([^<>]*) (?{ $group = $^N })
		1582	| < $interior >
		1583	)
		1584	>
		1585	%gcsx
		1586	) {
		1587	my ($code, $data) = ($1, $group);
		1588
		1589	if ($code eq "B") {
		1590	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1591	} elsif ($code eq "I") {
		1592	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1593	} elsif ($code eq "U") {
		1594	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1595	} elsif ($code eq "C") {
		1596	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1597	} elsif ($code eq "T") {
		1598	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1599	} elsif ($code eq "G") {
		1600	my ($male, $female) = split /\|/, $data;
		1601	$data = $self->gender ? $female : $male;
		1602	$xml .= expand_cfpod ($self, $data);
		1603	} elsif ($code eq "H") {
		1604	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1605	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1606	"")
		1607	[$self->{hintmode}];
		1608	} else {
		1609	$xml .= "error processing '$code($data)' directive";
		1610	}
		1611	} else {
		1612	if ($pod =~ /\G(.+)/) {
		1613	warn "parse error while expanding $pod (at $1)";
		1614	}
		1615	last;
		1616	}
		1617	}
		1618
		1619	for ($xml) {
		1620	# create single paragraphs (very hackish)
		1621	s/(?<=\S)\n(?=\w)/ /g;
		1622
		1623	# compress some whitespace
		1624	s/\s+\n/\n/g; # ws line-ends
		1625	s/\n\n+/\n/g; # double lines
		1626	s/^\n+//; # beginning lines
		1627	s/\n+$//; # ending lines
		1628	}
		1629
		1630	$xml
		1631	}
		1632
		1633	no re 'eval';
		1634
		1635	sub hintmode {
		1636	$_[0]{hintmode} = $_[1] if @_ > 1;
		1637	$_[0]{hintmode}
		1638	}
		1639
		1640	=item $player->ext_reply ($msgid, @msg)
		1641
		1642	Sends an ext reply to the player.
		1643
		1644	=cut
		1645
		1646	sub ext_reply($$@) {
		1647	my ($self, $id, @msg) = @_;
		1648
		1649	$self->ns->ext_reply ($id, @msg)
		1650	}
		1651
		1652	=item $player->ext_msg ($type, @msg)
		1653
		1654	Sends an ext event to the client.
		1655
		1656	=cut
		1657
		1658	sub ext_msg($$@) {
		1659	my ($self, $type, @msg) = @_;
		1660
		1661	$self->ns->ext_msg ($type, @msg);
		1662	}
		1663
		1664	=head3 cf::region
		1665
		1666	=over 4
		1667
		1668	=cut
		1669
		1670	package cf::region;
		1671
		1672	=item cf::region::find_by_path $path
		1673
		1674	Tries to decuce the likely region for a map knowing only its path.
		1675
		1676	=cut
		1677
		1678	sub find_by_path($) {
891	my ($path) = @_;	1679	my ($path) = @_;
892		1680
893	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1681	my ($match, $specificity);
894	my $base = $1;
895	my $pkg = $1;
896	$pkg =~ s/[^[:word:]]/_/g;
897	$pkg = "ext::$pkg";
898		1682
899	warn "loading '$path' into '$pkg'\n";	1683	for my $region (list) {
900		1684	if ($region->{match} && $path =~ $region->{match}) {
901	open my $fh, "<:utf8", $path	1685	($match, $specificity) = ($region, $region->specificity)
902	or die "$path: $!";	1686	if $region->specificity > $specificity;
903		1687	}
904	my $source =
905	"package $pkg; use strict; use utf8;\n"
906	. "#line 1 \"$path\"\n{\n"
907	. (do { local $/; <$fh> })
908	. "\n};\n1";
909
910	eval $source
911	or die $@ ? "$path: $@\n"
912	: "extension disabled.\n";
913
914	push @exts, $pkg;
915	$ext_pkg{$base} = $pkg;
916
917	# no strict 'refs';
918	# @{"$pkg\::ISA"} = ext::;
919
920	register $base, $pkg;
921	}
922
923	sub unload_extension {
924	my ($pkg) = @_;
925
926	warn "removing extension $pkg\n";
927
928	# remove hooks
929	#TODO
930	# for my $idx (0 .. $#PLUGIN_EVENT) {
931	# delete $hook[$idx]{$pkg};
932	# }	1688	}
933		1689
934	# remove commands	1690	$match
935	for my $name (keys %COMMAND) {
936	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
937
938	if (@cb) {
939	$COMMAND{$name} = \@cb;
940	} else {
941	delete $COMMAND{$name};
942	}
943	}
944
945	# remove extcmds
946	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
947	delete $EXTCMD{$name};
948	}
949
950	if (my $cb = $pkg->can ("unload")) {
951	eval {
952	$cb->($pkg);
953	1
954	} or warn "$pkg unloaded, but with errors: $@";
955	}
956
957	Symbol::delete_package $pkg;
958	}
959
960	sub load_extensions {
961	for my $ext (<$LIBDIR/*.ext>) {
962	next unless -r $ext;
963	eval {
964	load_extension $ext;
965	1
966	} or warn "$ext not loaded: $@";
967	}
968	}
969
970	#############################################################################
971	# load/save/clean perl data associated with a map
972
973	*cf::mapsupport::on_clean = sub {
974	my ($map) = @_;
975
976	my $path = $map->tmpname;
977	defined $path or return;
978
979	unlink "$path.pst";
980	};
981
982	cf::map->attach (prio => -10000, package => cf::mapsupport::);
983
984	#############################################################################
985	# load/save perl data associated with player->ob objects
986
987	sub all_objects(@) {
988	@_, map all_objects ($_->inv), @_
989	}
990
991	# TODO: compatibility cruft, remove when no longer needed
992	cf::player->attach (
993	on_load => sub {
994	my ($pl, $path) = @_;
995
996	for my $o (all_objects $pl->ob) {
997	if (my $value = $o->get_ob_key_value ("_perl_data")) {
998	$o->set_ob_key_value ("_perl_data");
999
1000	%$o = %{ Storable::thaw pack "H*", $value };
1001	}
1002	}
1003	},
1004	);
1005
1006	#############################################################################
1007
1008	=head2 CORE EXTENSIONS
1009
1010	Functions and methods that extend core crossfire objects.
1011
1012	=head3 cf::player
1013
1014	=over 4
1015
1016	=item cf::player::exists $login
1017
1018	Returns true when the given account exists.
1019
1020	=cut
1021
1022	sub cf::player::exists($) {
1023	cf::player::find $_[0]
1024	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1025	}
1026
1027	=item $player->ext_reply ($msgid, $msgtype, %msg)
1028
1029	Sends an ext reply to the player.
1030
1031	=cut
1032
1033	sub cf::player::ext_reply($$$%) {
1034	my ($self, $id, %msg) = @_;
1035
1036	$msg{msgid} = $id;
1037
1038	$self->send ("ext " . to_json \%msg);
1039	}	1691	}
1040		1692
1041	=back	1693	=back
1042
1043		1694
1044	=head3 cf::map	1695	=head3 cf::map
1045		1696
1046	=over 4	1697	=over 4
1047		1698
…		…
1050	package cf::map;	1701	package cf::map;
1051		1702
1052	use Fcntl;	1703	use Fcntl;
1053	use Coro::AIO;	1704	use Coro::AIO;
1054		1705
		1706	use overload
		1707	'""' => \&as_string,
		1708	fallback => 1;
		1709
1055	our $MAX_RESET = 7200;	1710	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	1711	our $DEFAULT_RESET = 3000;
1057		1712
1058	sub generate_random_map {	1713	sub generate_random_map {
1059	my ($path, $rmp) = @_;	1714	my ($self, $rmp) = @_;
1060
1061	# mit "rum" bekleckern, nicht	1715	# mit "rum" bekleckern, nicht
1062	cf::map::_create_random_map	1716	$self->_create_random_map (
1063	$path,
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1717	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1718	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1719	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},	1720	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},	1721	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1722	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1723	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1724	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1725	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1726	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(cf::region::find $rmp->{region})	1727	(cf::region::find $rmp->{region}), $rmp->{custom}
		1728	)
		1729	}
		1730
		1731	=item cf::map->register ($regex, $prio)
		1732
		1733	Register a handler for the map path matching the given regex at the
		1734	givne priority (higher is better, built-in handlers have priority 0, the
		1735	default).
		1736
		1737	=cut
		1738
		1739	sub register {
		1740	my (undef, $regex, $prio) = @_;
		1741	my $pkg = caller;
		1742
		1743	no strict;
		1744	push @{"$pkg\::ISA"}, __PACKAGE__;
		1745
		1746	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1747	}
		1748
		1749	# also paths starting with '/'
		1750	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1751
		1752	sub thawer_merge {
		1753	my ($self, $merge) = @_;
		1754
		1755	# we have to keep some variables in memory intact
		1756	local $self->{path};
		1757	local $self->{load_path};
		1758
		1759	$self->SUPER::thawer_merge ($merge);
		1760	}
		1761
		1762	sub normalise {
		1763	my ($path, $base) = @_;
		1764
		1765	$path = "$path"; # make sure its a string
		1766
		1767	$path =~ s/\.map$//;
		1768
		1769	# map plan:
		1770	#
		1771	# /! non-realised random map exit (special hack!)
		1772	# {... are special paths that are not being touched
		1773	# ?xxx/... are special absolute paths
		1774	# ?random/... random maps
		1775	# /... normal maps
		1776	# ~user/... per-player map of a specific user
		1777
		1778	$path =~ s/$PATH_SEP/\//go;
		1779
		1780	# treat it as relative path if it starts with
		1781	# something that looks reasonable
		1782	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1783	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1784
		1785	$base =~ s{[^/]+/?$}{};
		1786	$path = "$base/$path";
		1787	}
		1788
		1789	for ($path) {
		1790	redo if s{//}{/};
		1791	redo if s{/\.?/}{/};
		1792	redo if s{/[^/]+/\.\./}{/};
		1793	}
		1794
		1795	$path
		1796	}
		1797
		1798	sub new_from_path {
		1799	my (undef, $path, $base) = @_;
		1800
		1801	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1802
		1803	$path = normalise $path, $base;
		1804
		1805	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1806	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1807	my $self = bless cf::map::new, $pkg;
		1808	$self->{path} = $path; $self->path ($path);
		1809	$self->init; # pass $1 etc.
		1810	return $self;
		1811	}
		1812	}
		1813
		1814	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1815	()
		1816	}
		1817
		1818	sub init {
		1819	my ($self) = @_;
		1820
		1821	$self
		1822	}
		1823
		1824	sub as_string {
		1825	my ($self) = @_;
		1826
		1827	"$self->{path}"
		1828	}
		1829
		1830	# the displayed name, this is a one way mapping
		1831	sub visible_name {
		1832	&as_string
		1833	}
		1834
		1835	# the original (read-only) location
		1836	sub load_path {
		1837	my ($self) = @_;
		1838
		1839	"$MAPDIR/$self->{path}.map"
		1840	}
		1841
		1842	# the temporary/swap location
		1843	sub save_path {
		1844	my ($self) = @_;
		1845
		1846	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1847	"$TMPDIR/$path.map"
		1848	}
		1849
		1850	# the unique path, undef == no special unique path
		1851	sub uniq_path {
		1852	my ($self) = @_;
		1853
		1854	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1855	"$UNIQUEDIR/$path"
1075	}	1856	}
1076		1857
1077	# and all this just because we cannot iterate over	1858	# and all this just because we cannot iterate over
1078	# all maps in C++...	1859	# all maps in C++...
1079	sub change_all_map_light {	1860	sub change_all_map_light {
1080	my ($change) = @_;	1861	my ($change) = @_;
1081		1862
1082	$_->change_map_light ($change) for values %cf::MAP;	1863	$_->change_map_light ($change)
		1864	for grep $_->outdoor, values %cf::MAP;
1083	}	1865	}
1084		1866
		1867	sub decay_objects {
		1868	my ($self) = @_;
		1869
		1870	return if $self->{deny_reset};
		1871
		1872	$self->do_decay_objects;
		1873	}
		1874
		1875	sub unlink_save {
		1876	my ($self) = @_;
		1877
		1878	utf8::encode (my $save = $self->save_path);
		1879	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1880	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1881	}
		1882
1085	sub try_load_header($) {	1883	sub load_header_from($) {
1086	my ($path) = @_;	1884	my ($self, $path) = @_;
1087		1885
1088	utf8::encode $path;	1886	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	1887	my $f = new_from_file cf::object::thawer $path
1090	or return;	1888	or return;
1091		1889
1092	my $map = cf::map::new	1890	$self->_load_header ($f)
1093	or return;	1891	or return;
1094		1892
1095	$map->load_header ($path)	1893	local $MAP_LOADING{$self->{path}} = $self;
		1894	$f->resolve_delayed_derefs;
		1895
		1896	$self->{load_path} = $path;
		1897
		1898	1
		1899	}
		1900
		1901	sub load_header_orig {
		1902	my ($self) = @_;
		1903
		1904	$self->load_header_from ($self->load_path)
		1905	}
		1906
		1907	sub load_header_temp {
		1908	my ($self) = @_;
		1909
		1910	$self->load_header_from ($self->save_path)
		1911	}
		1912
		1913	sub prepare_temp {
		1914	my ($self) = @_;
		1915
		1916	$self->last_access ((delete $self->{last_access})
		1917	|| $cf::RUNTIME); #d#
		1918	# safety
		1919	$self->{instantiate_time} = $cf::RUNTIME
		1920	if $self->{instantiate_time} > $cf::RUNTIME;
		1921	}
		1922
		1923	sub prepare_orig {
		1924	my ($self) = @_;
		1925
		1926	$self->{load_original} = 1;
		1927	$self->{instantiate_time} = $cf::RUNTIME;
		1928	$self->last_access ($cf::RUNTIME);
		1929	$self->instantiate;
		1930	}
		1931
		1932	sub load_header {
		1933	my ($self) = @_;
		1934
		1935	if ($self->load_header_temp) {
		1936	$self->prepare_temp;
		1937	} else {
		1938	$self->load_header_orig
1096	or return;	1939	or return;
		1940	$self->prepare_orig;
		1941	}
1097		1942
1098	$map->{load_path} = $path;	1943	$self->{deny_reset} = 1
		1944	if $self->no_reset;
1099		1945
1100	$map	1946	$self->default_region (cf::region::find_by_path $self->{path})
1101	}	1947	unless $self->default_region;
1102		1948
		1949	1
		1950	}
		1951
		1952	sub find;
1103	sub find_map {	1953	sub find {
1104	my ($path, $origin) = @_;	1954	my ($path, $origin) = @_;
1105		1955
1106	#warn "find_map<$path,$origin>\n";#d#
1107
1108	$path = new cf::path $path, $origin && $origin->path;	1956	$path = normalise $path, $origin && $origin->path;
1109	my $key = $path->as_string;
1110		1957
		1958	cf::lock_wait "map_data:$path";#d#remove
		1959	cf::lock_wait "map_find:$path";
		1960
1111	$cf::MAP{$key} || do {	1961	$cf::MAP{$path} || do {
1112	# do it the slow way	1962	my $guard1 = cf::lock_acquire "map_find:$path";
1113	my $map = try_load_header $path->save_path;	1963	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1114		1964
1115	if ($map) {	1965	my $map = new_from_path cf::map $path
1116	# safety
1117	$map->{instantiate_time} = $cf::RUNTIME
1118	if $map->{instantiate_time} > $cf::RUNTIME;
1119	} else {
1120	if (my $rmp = $path->random_map_params) {
1121	$map = generate_random_map $key, $rmp;
1122	} else {
1123	$map = try_load_header $path->load_path;
1124	}
1125
1126	$map or return;	1966	or return;
1127		1967
1128	$map->{load_original} = 1;
1129	$map->{instantiate_time} = $cf::RUNTIME;
1130	$map->instantiate;
1131
1132	# per-player maps become, after loading, normal maps
1133	$map->per_player (0) if $path->{user_rel};
1134	}
1135
1136	$map->path ($key);
1137	$map->{path} = $path;
1138	$map->last_access ($cf::RUNTIME);	1968	$map->{last_save} = $cf::RUNTIME;
1139		1969
1140	if ($map->should_reset) {	1970	$map->load_header
		1971	or return;
		1972
		1973	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1974	# doing this can freeze the server in a sync job, obviously
		1975	#$cf::WAIT_FOR_TICK->wait;
		1976	undef $guard1;
		1977	undef $guard2;
1141	$map->reset;	1978	$map->reset;
1142	$map = find_map $path;	1979	return find $path;
1143	}	1980	}
1144		1981
1145	$cf::MAP{$key} = $map	1982	$cf::MAP{$path} = $map
1146	}	1983	}
1147	}	1984	}
		1985
		1986	sub pre_load { }
		1987	sub post_load { }
1148		1988
1149	sub load {	1989	sub load {
1150	my ($self) = @_;	1990	my ($self) = @_;
1151		1991
1152	return if $self->in_memory != cf::MAP_SWAPPED;	1992	local $self->{deny_reset} = 1; # loading can take a long time
1153
1154	$self->in_memory (cf::MAP_LOADING);
1155		1993
1156	my $path = $self->{path};	1994	my $path = $self->{path};
1157		1995
		1996	{
		1997	my $guard = cf::lock_acquire "map_data:$path";
		1998
		1999	return unless $self->valid;
		2000	return unless $self->in_memory == cf::MAP_SWAPPED;
		2001
		2002	$self->in_memory (cf::MAP_LOADING);
		2003
1158	$self->alloc;	2004	$self->alloc;
1159	$self->load_objects ($self->{load_path}, 1)	2005
		2006	$self->pre_load;
		2007	cf::cede_to_tick;
		2008
		2009	my $f = new_from_file cf::object::thawer $self->{load_path};
		2010	$f->skip_block;
		2011	$self->_load_objects ($f)
1160	or return;	2012	or return;
1161		2013
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2014	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1163	if delete $self->{load_original};	2015	if delete $self->{load_original};
1164		2016
1165	if (my $uniq = $path->uniq_path) {	2017	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	2018	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	2019	unless (aio_stat $uniq) {
		2020	if (my $f = new_from_file cf::object::thawer $uniq) {
1168	$self->clear_unique_items;	2021	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	2022	$self->_load_objects ($f);
		2023	$f->resolve_delayed_derefs;
		2024	}
1170	}	2025	}
1171	}	2026	}
1172		2027
		2028	$f->resolve_delayed_derefs;
		2029
		2030	cf::cede_to_tick;
1173	# now do the right thing for maps	2031	# now do the right thing for maps
1174	$self->link_multipart_objects;	2032	$self->link_multipart_objects;
1175
1176	if ($self->{path}->is_style_map) {
1177	$self->{deny_save} = 1;
1178	$self->{deny_reset} = 1;
1179	} else {
1180	$self->fix_auto_apply;
1181	$self->decay_objects;
1182	$self->update_buttons;
1183	$self->set_darkness_map;
1184	$self->difficulty ($self->estimate_difficulty)	2033	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	2034	unless $self->difficulty;
		2035	cf::cede_to_tick;
		2036
		2037	unless ($self->{deny_activate}) {
		2038	$self->decay_objects;
		2039	$self->fix_auto_apply;
		2040	$self->update_buttons;
		2041	cf::cede_to_tick;
		2042	$self->set_darkness_map;
		2043	cf::cede_to_tick;
1186	$self->activate;	2044	$self->activate;
1187	}	2045	}
1188		2046
		2047	$self->{last_save} = $cf::RUNTIME;
		2048	$self->last_access ($cf::RUNTIME);
		2049
1189	$self->in_memory (cf::MAP_IN_MEMORY);	2050	$self->in_memory (cf::MAP_IN_MEMORY);
1190	}	2051	}
1191		2052
1192	sub load_map_sync {	2053	$self->post_load;
		2054	}
		2055
		2056	sub customise_for {
		2057	my ($self, $ob) = @_;
		2058
		2059	return find "~" . $ob->name . "/" . $self->{path}
		2060	if $self->per_player;
		2061
		2062	# return find "?party/" . $ob->name . "/" . $self->{path}
		2063	# if $self->per_party;
		2064
		2065	$self
		2066	}
		2067
		2068	# find and load all maps in the 3x3 area around a map
		2069	sub load_neighbours {
		2070	my ($map) = @_;
		2071
		2072	my @neigh; # diagonal neighbours
		2073
		2074	for (0 .. 3) {
		2075	my $neigh = $map->tile_path ($_)
		2076	or next;
		2077	$neigh = find $neigh, $map
		2078	or next;
		2079	$neigh->load;
		2080
		2081	push @neigh,
		2082	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2083	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2084	}
		2085
		2086	for (grep defined $_->[0], @neigh) {
		2087	my ($path, $origin) = @$_;
		2088	my $neigh = find $path, $origin
		2089	or next;
		2090	$neigh->load;
		2091	}
		2092	}
		2093
		2094	sub find_sync {
1193	my ($path, $origin) = @_;	2095	my ($path, $origin) = @_;
1194		2096
1195	#warn "load_map_sync<$path, $origin>\n";#d#	2097	cf::sync_job { find $path, $origin }
		2098	}
1196		2099
1197	cf::sync_job {	2100	sub do_load_sync {
1198	my $map = cf::map::find_map $path, $origin	2101	my ($map) = @_;
1199	or return;	2102
1200	$map->load;	2103	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1201	$map	2104	if $Coro::current == $Coro::main;
		2105
		2106	cf::sync_job { $map->load };
		2107	}
		2108
		2109	our %MAP_PREFETCH;
		2110	our $MAP_PREFETCHER = undef;
		2111
		2112	sub find_async {
		2113	my ($path, $origin, $load) = @_;
		2114
		2115	$path = normalise $path, $origin && $origin->{path};
		2116
		2117	if (my $map = $cf::MAP{$path}) {
		2118	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2119	}
		2120
		2121	$MAP_PREFETCH{$path} |= $load;
		2122
		2123	$MAP_PREFETCHER ||= cf::async {
		2124	$Coro::current->{desc} = "map prefetcher";
		2125
		2126	while (%MAP_PREFETCH) {
		2127	while (my ($k, $v) = each %MAP_PREFETCH) {
		2128	if (my $map = find $k) {
		2129	$map->load if $v;
		2130	}
		2131
		2132	delete $MAP_PREFETCH{$k};
		2133	}
		2134	}
		2135	undef $MAP_PREFETCHER;
1202	}	2136	};
		2137	$MAP_PREFETCHER->prio (6);
		2138
		2139	()
1203	}	2140	}
1204		2141
1205	sub save {	2142	sub save {
1206	my ($self) = @_;	2143	my ($self) = @_;
1207		2144
1208	my $save = $self->{path}->save_path; utf8::encode $save;	2145	my $lock = cf::lock_acquire "map_data:$self->{path}";
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		2146
1211	$self->{last_save} = $cf::RUNTIME;	2147	$self->{last_save} = $cf::RUNTIME;
1212		2148
1213	return unless $self->dirty;	2149	return unless $self->dirty;
1214		2150
		2151	my $save = $self->save_path; utf8::encode $save;
		2152	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2153
1215	$self->{load_path} = $save;	2154	$self->{load_path} = $save;
1216		2155
1217	return if $self->{deny_save};	2156	return if $self->{deny_save};
1218		2157
		2158	local $self->{last_access} = $self->last_access;#d#
		2159
		2160	cf::async {
		2161	$Coro::current->{desc} = "map player save";
		2162	$_->contr->save for $self->players;
		2163	};
		2164
1219	if ($uniq) {	2165	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2166	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);	2167	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {	2168	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2169	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}	2170	}
1225	}	2171	}
1226		2172
1227	sub swap_out {	2173	sub swap_out {
1228	my ($self) = @_;	2174	my ($self) = @_;
		2175
		2176	# save first because save cedes
		2177	$self->save;
		2178
		2179	my $lock = cf::lock_acquire "map_data:$self->{path}";
1229		2180
1230	return if $self->players;	2181	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;	2182	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};	2183	return if $self->{deny_save};
1233		2184
		2185	$self->in_memory (cf::MAP_SWAPPED);
		2186
1234	$self->save;	2187	$self->deactivate;
		2188	$_->clear_links_to ($self) for values %cf::MAP;
1235	$self->clear;	2189	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);
1237	}	2190	}
1238		2191
1239	sub reset_at {	2192	sub reset_at {
1240	my ($self) = @_;	2193	my ($self) = @_;
1241		2194
1242	# TODO: safety, remove and allow resettable per-player maps	2195	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};
1244	return 1e100 if $self->{deny_reset};	2196	return 1e99 if $self->{deny_reset};
1245		2197
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2198	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	2199	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		2200
1250	$time + $to	2201	$time + $to
1251	}	2202	}
1252		2203
1253	sub should_reset {	2204	sub should_reset {
1254	my ($self) = @_;	2205	my ($self) = @_;
1255		2206
1256	$self->reset_at <= $cf::RUNTIME	2207	$self->reset_at <= $cf::RUNTIME
1257	}	2208	}
1258		2209
1259	sub unlink_save {
1260	my ($self) = @_;
1261
1262	utf8::encode (my $save = $self->{path}->save_path);
1263	aioreq_pri 3; IO::AIO::aio_unlink $save;
1264	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1265	}
1266
1267	sub rename {
1268	my ($self, $new_path) = @_;
1269
1270	$self->unlink_save;
1271
1272	delete $cf::MAP{$self->path};
1273	$self->{path} = new cf::path $new_path;
1274	$self->path ($self->{path}->path);
1275	$cf::MAP{$self->path} = $self;
1276
1277	$self->save;
1278	}
1279
1280	sub reset {	2210	sub reset {
1281	my ($self) = @_;	2211	my ($self) = @_;
1282		2212
		2213	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2214
1283	return if $self->players;	2215	return if $self->players;
1284	return if $self->{path}{user_rel};#d#
1285		2216
1286	warn "resetting map ", $self->path;#d#	2217	warn "resetting map ", $self->path;
		2218
		2219	$self->in_memory (cf::MAP_SWAPPED);
		2220
		2221	# need to save uniques path
		2222	unless ($self->{deny_save}) {
		2223	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2224
		2225	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2226	if $uniq;
		2227	}
1287		2228
1288	delete $cf::MAP{$self->path};	2229	delete $cf::MAP{$self->path};
1289		2230
		2231	$self->deactivate;
1290	$_->clear_links_to ($self) for values %cf::MAP;	2232	$_->clear_links_to ($self) for values %cf::MAP;
		2233	$self->clear;
1291		2234
1292	$self->unlink_save;	2235	$self->unlink_save;
1293	$self->destroy;	2236	$self->destroy;
1294	}	2237	}
1295		2238
1296	sub customise_for {	2239	my $nuke_counter = "aaaa";
1297	my ($map, $ob) = @_;
1298		2240
1299	if ($map->per_player) {	2241	sub nuke {
1300	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2242	my ($self) = @_;
		2243
1301	}	2244	{
		2245	my $lock = cf::lock_acquire "map_data:$self->{path}";
1302		2246
1303	$map	2247	delete $cf::MAP{$self->path};
1304	}
1305		2248
1306	sub emergency_save {	2249	$self->unlink_save;
1307	local $cf::FREEZE = 1;
1308		2250
1309	warn "enter emergency map save\n";	2251	bless $self, "cf::map";
		2252	delete $self->{deny_reset};
		2253	$self->{deny_save} = 1;
		2254	$self->reset_timeout (1);
		2255	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1310		2256
1311	cf::sync_job {	2257	$cf::MAP{$self->path} = $self;
1312	warn "begin emergency map save\n";
1313	$_->save for values %cf::MAP;
1314	};	2258	}
1315		2259
1316	warn "end emergency map save\n";	2260	$self->reset; # polite request, might not happen
		2261	}
		2262
		2263	=item $maps = cf::map::tmp_maps
		2264
		2265	Returns an arrayref with all map paths of currently instantiated and saved
		2266	maps. May block.
		2267
		2268	=cut
		2269
		2270	sub tmp_maps() {
		2271	[
		2272	map {
		2273	utf8::decode $_;
		2274	/\.map$/
		2275	? normalise $_
		2276	: ()
		2277	} @{ aio_readdir $TMPDIR or [] }
		2278	]
		2279	}
		2280
		2281	=item $maps = cf::map::random_maps
		2282
		2283	Returns an arrayref with all map paths of currently instantiated and saved
		2284	random maps. May block.
		2285
		2286	=cut
		2287
		2288	sub random_maps() {
		2289	[
		2290	map {
		2291	utf8::decode $_;
		2292	/\.map$/
		2293	? normalise "?random/$_"
		2294	: ()
		2295	} @{ aio_readdir $RANDOMDIR or [] }
		2296	]
		2297	}
		2298
		2299	=item cf::map::unique_maps
		2300
		2301	Returns an arrayref of paths of all shared maps that have
		2302	instantiated unique items. May block.
		2303
		2304	=cut
		2305
		2306	sub unique_maps() {
		2307	[
		2308	map {
		2309	utf8::decode $_;
		2310	/\.map$/
		2311	? normalise $_
		2312	: ()
		2313	} @{ aio_readdir $UNIQUEDIR or [] }
		2314	]
1317	}	2315	}
1318		2316
1319	package cf;	2317	package cf;
1320		2318
1321	=back	2319	=back
1322		2320
		2321	=head3 cf::object
		2322
		2323	=cut
		2324
		2325	package cf::object;
		2326
		2327	=over 4
		2328
		2329	=item $ob->inv_recursive
		2330
		2331	Returns the inventory of the object _and_ their inventories, recursively.
		2332
		2333	=cut
		2334
		2335	sub inv_recursive_;
		2336	sub inv_recursive_ {
		2337	map { $_, inv_recursive_ $_->inv } @_
		2338	}
		2339
		2340	sub inv_recursive {
		2341	inv_recursive_ inv $_[0]
		2342	}
		2343
		2344	=item $ref = $ob->ref
		2345
		2346	creates and returns a persistent reference to an objetc that can be stored as a string.
		2347
		2348	=item $ob = cf::object::deref ($refstring)
		2349
		2350	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2351	even if the object actually exists. May block.
		2352
		2353	=cut
		2354
		2355	sub deref {
		2356	my ($ref) = @_;
		2357
		2358	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2359	my ($uuid, $name) = ($1, $2);
		2360	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2361	or return;
		2362	$pl->ob->uuid eq $uuid
		2363	or return;
		2364
		2365	$pl->ob
		2366	} else {
		2367	warn "$ref: cannot resolve object reference\n";
		2368	undef
		2369	}
		2370	}
		2371
		2372	package cf;
		2373
		2374	=back
1323		2375
1324	=head3 cf::object::player	2376	=head3 cf::object::player
1325		2377
1326	=over 4	2378	=over 4
1327		2379
…		…
1341		2393
1342	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2394	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1343		2395
1344	if ($self->{record_replies}) {	2396	if ($self->{record_replies}) {
1345	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2397	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2398
1346	} else {	2399	} else {
		2400	my $pl = $self->contr;
		2401
		2402	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2403	my $dialog = $pl->{npc_dialog};
		2404	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2405
		2406	} else {
1347	$msg = $npc->name . " says: $msg" if $npc;	2407	$msg = $npc->name . " says: $msg" if $npc;
1348	$self->message ($msg, $flags);	2408	$self->message ($msg, $flags);
		2409	}
1349	}	2410	}
		2411	}
		2412
		2413	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2414
		2415	=cut
		2416
		2417	sub cf::object::send_msg {
		2418	my $pl = shift->contr
		2419	or return;
		2420	$pl->send_msg (@_);
1350	}	2421	}
1351		2422
1352	=item $player_object->may ("access")	2423	=item $player_object->may ("access")
1353		2424
1354	Returns wether the given player is authorized to access resource "access"	2425	Returns wether the given player is authorized to access resource "access"
…		…
1363	(ref $cf::CFG{"may_$access"}	2434	(ref $cf::CFG{"may_$access"}
1364	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2435	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1365	: $cf::CFG{"may_$access"})	2436	: $cf::CFG{"may_$access"})
1366	}	2437	}
1367		2438
		2439	=item $player_object->enter_link
		2440
		2441	Freezes the player and moves him/her to a special map (C<{link}>).
		2442
		2443	The player should be reasonably safe there for short amounts of time. You
		2444	I<MUST> call C<leave_link> as soon as possible, though.
		2445
		2446	Will never block.
		2447
		2448	=item $player_object->leave_link ($map, $x, $y)
		2449
		2450	Moves the player out of the special C<{link}> map onto the specified
		2451	map. If the map is not valid (or omitted), the player will be moved back
		2452	to the location he/she was before the call to C<enter_link>, or, if that
		2453	fails, to the emergency map position.
		2454
		2455	Might block.
		2456
		2457	=cut
		2458
		2459	sub link_map {
		2460	unless ($LINK_MAP) {
		2461	$LINK_MAP = cf::map::find "{link}"
		2462	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2463	$LINK_MAP->load;
		2464	}
		2465
		2466	$LINK_MAP
		2467	}
		2468
1368	sub cf::object::player::enter_link {	2469	sub cf::object::player::enter_link {
1369	my ($self) = @_;	2470	my ($self) = @_;
1370		2471
1371	return if $self->map == $LINK_MAP;
1372
1373	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1374	if $self->map;
1375
1376	$self->enter_map ($LINK_MAP, 20, 20);
1377	$self->deactivate_recursive;	2472	$self->deactivate_recursive;
		2473
		2474	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2475
		2476	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2477	if $self->map && $self->map->{path} ne "{link}";
		2478
		2479	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1378	}	2480	}
1379		2481
1380	sub cf::object::player::leave_link {	2482	sub cf::object::player::leave_link {
1381	my ($self, $map, $x, $y) = @_;	2483	my ($self, $map, $x, $y) = @_;
1382		2484
		2485	return unless $self->contr->active;
		2486
1383	my $link_pos = delete $self->{_link_pos};	2487	my $link_pos = delete $self->{_link_pos};
1384		2488
1385	unless ($map) {	2489	unless ($map) {
1386	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1387
1388	# restore original map position	2490	# restore original map position
1389	($map, $x, $y) = @{ $link_pos || [] };	2491	($map, $x, $y) = @{ $link_pos || [] };
1390	$map = cf::map::find_map $map;	2492	$map = cf::map::find $map;
1391		2493
1392	unless ($map) {	2494	unless ($map) {
1393	($map, $x, $y) = @$EMERGENCY_POSITION;	2495	($map, $x, $y) = @$EMERGENCY_POSITION;
1394	$map = cf::map::find_map $map	2496	$map = cf::map::find $map
1395	or die "FATAL: cannot load emergency map\n";	2497	or die "FATAL: cannot load emergency map\n";
1396	}	2498	}
1397	}	2499	}
1398		2500
1399	($x, $y) = (-1, -1)	2501	($x, $y) = (-1, -1)
…		…
1402	# use -1 or undef as default coordinates, not 0, 0	2504	# use -1 or undef as default coordinates, not 0, 0
1403	($x, $y) = ($map->enter_x, $map->enter_y)	2505	($x, $y) = ($map->enter_x, $map->enter_y)
1404	if $x <=0 && $y <= 0;	2506	if $x <=0 && $y <= 0;
1405		2507
1406	$map->load;	2508	$map->load;
		2509	$map->load_neighbours;
1407		2510
		2511	return unless $self->contr->active;
1408	$self->activate_recursive;	2512	$self->activate_recursive;
		2513
		2514	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1409	$self->enter_map ($map, $x, $y);	2515	$self->enter_map ($map, $x, $y);
1410	}	2516	}
1411		2517
1412	=item $player_object->goto_map ($map, $x, $y)	2518	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1413		2519
1414	=cut	2520	Moves the player to the given map-path and coordinates by first freezing
		2521	her, loading and preparing them map, calling the provided $check callback
		2522	that has to return the map if sucecssful, and then unfreezes the player on
		2523	the new (success) or old (failed) map position. In either case, $done will
		2524	be called at the end of this process.
1415		2525
		2526	=cut
		2527
		2528	our $GOTOGEN;
		2529
1416	sub cf::object::player::goto_map {	2530	sub cf::object::player::goto {
1417	my ($self, $path, $x, $y) = @_;	2531	my ($self, $path, $x, $y, $check, $done) = @_;
		2532
		2533	# do generation counting so two concurrent goto's will be executed in-order
		2534	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1418		2535
1419	$self->enter_link;	2536	$self->enter_link;
1420		2537
1421	(Coro::async {	2538	(async {
1422	$path = new cf::path $path;	2539	$Coro::current->{desc} = "player::goto $path $x $y";
1423		2540
1424	my $map = cf::map::find_map $path->as_string;	2541	# *tag paths override both path and x|y
		2542	if ($path =~ /^\*(.*)$/) {
		2543	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2544	my $ob = $obs[rand @obs];
		2545
		2546	# see if we actually can go there
		2547	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2548	$ob = $obs[rand @obs];
		2549	} else {
		2550	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2551	}
		2552	# else put us there anyways for now #d#
		2553
		2554	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2555	} else {
		2556	($path, $x, $y) = (undef, undef, undef);
		2557	}
		2558	}
		2559
		2560	my $map = eval {
		2561	my $map = defined $path ? cf::map::find $path : undef;
		2562
		2563	if ($map) {
1425	$map = $map->customise_for ($self) if $map;	2564	$map = $map->customise_for ($self);
		2565	$map = $check->($map) if $check && $map;
		2566	} else {
		2567	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2568	}
1426		2569
1427	warn "entering ", $map->path, " at ($x, $y)\n"
1428	if $map;	2570	$map
		2571	};
1429		2572
		2573	if ($@) {
		2574	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2575	LOG llevError | logBacktrace, Carp::longmess $@;
		2576	}
		2577
		2578	if ($gen == $self->{_goto_generation}) {
		2579	delete $self->{_goto_generation};
1430	$self->leave_link ($map, $x, $y);	2580	$self->leave_link ($map, $x, $y);
		2581	}
		2582
		2583	$done->() if $done;
1431	})->prio (1);	2584	})->prio (1);
1432	}	2585	}
1433		2586
1434	=item $player_object->enter_exit ($exit_object)	2587	=item $player_object->enter_exit ($exit_object)
1435		2588
…		…
1437		2590
1438	sub parse_random_map_params {	2591	sub parse_random_map_params {
1439	my ($spec) = @_;	2592	my ($spec) = @_;
1440		2593
1441	my $rmp = { # defaults	2594	my $rmp = { # defaults
1442	xsize => 10,	2595	xsize => (cf::rndm 15, 40),
1443	ysize => 10,	2596	ysize => (cf::rndm 15, 40),
		2597	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2598	#layout => string,
1444	};	2599	};
1445		2600
1446	for (split /\n/, $spec) {	2601	for (split /\n/, $spec) {
1447	my ($k, $v) = split /\s+/, $_, 2;	2602	my ($k, $v) = split /\s+/, $_, 2;
1448		2603
…		…
1452	$rmp	2607	$rmp
1453	}	2608	}
1454		2609
1455	sub prepare_random_map {	2610	sub prepare_random_map {
1456	my ($exit) = @_;	2611	my ($exit) = @_;
		2612
		2613	my $guard = cf::lock_acquire "exit_prepare:$exit";
1457		2614
1458	# all this does is basically replace the /! path by	2615	# all this does is basically replace the /! path by
1459	# a new random map path (?random/...) with a seed	2616	# a new random map path (?random/...) with a seed
1460	# that depends on the exit object	2617	# that depends on the exit object
1461		2618
1462	my $rmp = parse_random_map_params $exit->msg;	2619	my $rmp = parse_random_map_params $exit->msg;
1463		2620
1464	if ($exit->map) {	2621	if ($exit->map) {
1465	$rmp->{region} = $exit->map->region_name;	2622	$rmp->{region} = $exit->region->name;
1466	$rmp->{origin_map} = $exit->map->path;	2623	$rmp->{origin_map} = $exit->map->path;
1467	$rmp->{origin_x} = $exit->x;	2624	$rmp->{origin_x} = $exit->x;
1468	$rmp->{origin_y} = $exit->y;	2625	$rmp->{origin_y} = $exit->y;
1469	}	2626	}
1470		2627
1471	$rmp->{random_seed} ||= $exit->random_seed;	2628	$rmp->{random_seed} ||= $exit->random_seed;
1472		2629
1473	my $data = cf::to_json $rmp;	2630	my $data = cf::to_json $rmp;
1474	my $md5 = Digest::MD5::md5_hex $data;	2631	my $md5 = Digest::MD5::md5_hex $data;
		2632	my $meta = "$RANDOMDIR/$md5.meta";
1475		2633
1476	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2634	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1477	aio_write $fh, 0, (length $data), $data, 0;	2635	aio_write $fh, 0, (length $data), $data, 0;
		2636	undef $fh;
		2637	aio_rename "$meta~", $meta;
1478		2638
1479	$exit->slaying ("?random/$md5");	2639	$exit->slaying ("?random/$md5");
1480	$exit->msg (undef);	2640	$exit->msg (undef);
1481	}	2641	}
1482	}	2642	}
…		…
1484	sub cf::object::player::enter_exit {	2644	sub cf::object::player::enter_exit {
1485	my ($self, $exit) = @_;	2645	my ($self, $exit) = @_;
1486		2646
1487	return unless $self->type == cf::PLAYER;	2647	return unless $self->type == cf::PLAYER;
1488		2648
		2649	if ($exit->slaying eq "/!") {
		2650	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2651	# the problem is that $exit might not survive long enough
		2652	# so it needs to be done right now, right here
		2653	cf::sync_job { prepare_random_map $exit };
		2654	}
		2655
		2656	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2657	my $hp = $exit->stats->hp;
		2658	my $sp = $exit->stats->sp;
		2659
1489	$self->enter_link;	2660	$self->enter_link;
1490		2661
		2662	# if exit is damned, update players death & WoR home-position
		2663	$self->contr->savebed ($slaying, $hp, $sp)
		2664	if $exit->flag (FLAG_DAMNED);
		2665
1491	(Coro::async {	2666	(async {
		2667	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2668
		2669	$self->deactivate_recursive; # just to be sure
1492	unless (eval {	2670	unless (eval {
1493		2671	$self->goto ($slaying, $hp, $sp);
1494	prepare_random_map $exit
1495	if $exit->slaying eq "/!";
1496
1497	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1498	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1499		2672
1500	1;	2673	1;
1501	}) {	2674	}) {
1502	$self->message ("Something went wrong deep within the crossfire server. "	2675	$self->message ("Something went wrong deep within the crossfire server. "
1503	. "I'll try to bring you back to the map you were before. "	2676	. "I'll try to bring you back to the map you were before. "
1504	. "Please report this to the dungeon master",	2677	. "Please report this to the dungeon master!",
1505	cf::NDI_UNIQUE | cf::NDI_RED);	2678	cf::NDI_UNIQUE | cf::NDI_RED);
1506		2679
1507	warn "ERROR in enter_exit: $@";	2680	warn "ERROR in enter_exit: $@";
1508	$self->leave_link;	2681	$self->leave_link;
1509	}	2682	}
1510	})->prio (1);	2683	})->prio (1);
…		…
1523		2696
1524	sub cf::client::send_drawinfo {	2697	sub cf::client::send_drawinfo {
1525	my ($self, $text, $flags) = @_;	2698	my ($self, $text, $flags) = @_;
1526		2699
1527	utf8::encode $text;	2700	utf8::encode $text;
1528	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2701	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1529	}	2702	}
1530		2703
		2704	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2705
		2706	Send a drawinfo or msg packet to the client, formatting the msg for the
		2707	client if neccessary. C<$type> should be a string identifying the type of
		2708	the message, with C<log> being the default. If C<$color> is negative, suppress
		2709	the message unless the client supports the msg packet.
		2710
		2711	=cut
		2712
		2713	# non-persistent channels (usually the info channel)
		2714	our %CHANNEL = (
		2715	"c/identify" => {
		2716	id => "infobox",
		2717	title => "Identify",
		2718	reply => undef,
		2719	tooltip => "Items recently identified",
		2720	},
		2721	"c/examine" => {
		2722	id => "infobox",
		2723	title => "Examine",
		2724	reply => undef,
		2725	tooltip => "Signs and other items you examined",
		2726	},
		2727	"c/book" => {
		2728	id => "infobox",
		2729	title => "Book",
		2730	reply => undef,
		2731	tooltip => "The contents of a note or book",
		2732	},
		2733	"c/lookat" => {
		2734	id => "infobox",
		2735	title => "Look",
		2736	reply => undef,
		2737	tooltip => "What you saw there",
		2738	},
		2739	"c/who" => {
		2740	id => "infobox",
		2741	title => "Players",
		2742	reply => undef,
		2743	tooltip => "Shows players who are currently online",
		2744	},
		2745	"c/body" => {
		2746	id => "infobox",
		2747	title => "Body Parts",
		2748	reply => undef,
		2749	tooltip => "Shows which body parts you posess and are available",
		2750	},
		2751	"c/uptime" => {
		2752	id => "infobox",
		2753	title => "Uptime",
		2754	reply => undef,
		2755	tooltip => "How long the server has been running since last restart",
		2756	},
		2757	"c/mapinfo" => {
		2758	id => "infobox",
		2759	title => "Map Info",
		2760	reply => undef,
		2761	tooltip => "Information related to the maps",
		2762	},
		2763	);
		2764
		2765	sub cf::client::send_msg {
		2766	my ($self, $channel, $msg, $color, @extra) = @_;
		2767
		2768	$msg = $self->pl->expand_cfpod ($msg);
		2769
		2770	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2771
		2772	# check predefined channels, for the benefit of C
		2773	if ($CHANNEL{$channel}) {
		2774	$channel = $CHANNEL{$channel};
		2775
		2776	$self->ext_msg (channel_info => $channel)
		2777	if $self->can_msg;
		2778
		2779	$channel = $channel->{id};
		2780
		2781	} elsif (ref $channel) {
		2782	# send meta info to client, if not yet sent
		2783	unless (exists $self->{channel}{$channel->{id}}) {
		2784	$self->{channel}{$channel->{id}} = $channel;
		2785	$self->ext_msg (channel_info => $channel)
		2786	if $self->can_msg;
		2787	}
		2788
		2789	$channel = $channel->{id};
		2790	}
		2791
		2792	return unless @extra || length $msg;
		2793
		2794	if ($self->can_msg) {
		2795	# default colour, mask it out
		2796	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2797	if $color & cf::NDI_DEF;
		2798
		2799	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2800	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2801	} else {
		2802	if ($color >= 0) {
		2803	# replace some tags by gcfclient-compatible ones
		2804	for ($msg) {
		2805	1 while
		2806	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2807	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2808	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2809	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2810	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2811	}
		2812
		2813	$color &= cf::NDI_COLOR_MASK;
		2814
		2815	utf8::encode $msg;
		2816
		2817	if (0 && $msg =~ /\[/) {
		2818	# COMMAND/INFO
		2819	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2820	} else {
		2821	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2822	$self->send_packet ("drawinfo $color $msg")
		2823	}
		2824	}
		2825	}
		2826	}
		2827
		2828	=item $client->ext_msg ($type, @msg)
		2829
		2830	Sends an ext event to the client.
		2831
		2832	=cut
		2833
		2834	sub cf::client::ext_msg($$@) {
		2835	my ($self, $type, @msg) = @_;
		2836
		2837	if ($self->extcmd == 2) {
		2838	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2839	} elsif ($self->extcmd == 1) { # TODO: remove
		2840	push @msg, msgtype => "event_$type";
		2841	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2842	}
		2843	}
		2844
		2845	=item $client->ext_reply ($msgid, @msg)
		2846
		2847	Sends an ext reply to the client.
		2848
		2849	=cut
		2850
		2851	sub cf::client::ext_reply($$@) {
		2852	my ($self, $id, @msg) = @_;
		2853
		2854	if ($self->extcmd == 2) {
		2855	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2856	} elsif ($self->extcmd == 1) {
		2857	#TODO: version 1, remove
		2858	unshift @msg, msgtype => "reply", msgid => $id;
		2859	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2860	}
		2861	}
1531		2862
1532	=item $success = $client->query ($flags, "text", \&cb)	2863	=item $success = $client->query ($flags, "text", \&cb)
1533		2864
1534	Queues a query to the client, calling the given callback with	2865	Queues a query to the client, calling the given callback with
1535	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2866	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1536	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2867	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1537		2868
1538	Queries can fail, so check the return code. Or don't, as queries will become	2869	Queries can fail, so check the return code. Or don't, as queries will
1539	reliable at some point in the future.	2870	become reliable at some point in the future.
1540		2871
1541	=cut	2872	=cut
1542		2873
1543	sub cf::client::query {	2874	sub cf::client::query {
1544	my ($self, $flags, $text, $cb) = @_;	2875	my ($self, $flags, $text, $cb) = @_;
…		…
1552	utf8::encode $text;	2883	utf8::encode $text;
1553	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2884	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1554		2885
1555	$self->send_packet ($self->{query_queue}[0][0])	2886	$self->send_packet ($self->{query_queue}[0][0])
1556	if @{ $self->{query_queue} } == 1;	2887	if @{ $self->{query_queue} } == 1;
		2888
		2889	1
1557	}	2890	}
1558		2891
1559	cf::client->attach (	2892	cf::client->attach (
		2893	on_connect => sub {
		2894	my ($ns) = @_;
		2895
		2896	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2897	},
1560	on_reply => sub {	2898	on_reply => sub {
1561	my ($ns, $msg) = @_;	2899	my ($ns, $msg) = @_;
1562		2900
1563	# this weird shuffling is so that direct followup queries	2901	# this weird shuffling is so that direct followup queries
1564	# get handled first	2902	# get handled first
1565	my $queue = delete $ns->{query_queue};	2903	my $queue = delete $ns->{query_queue}
		2904	or return; # be conservative, not sure how that can happen, but we saw a crash here
1566		2905
1567	(shift @$queue)->[1]->($msg);	2906	(shift @$queue)->[1]->($msg);
		2907	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1568		2908
1569	push @{ $ns->{query_queue} }, @$queue;	2909	push @{ $ns->{query_queue} }, @$queue;
1570		2910
1571	if (@{ $ns->{query_queue} } == @$queue) {	2911	if (@{ $ns->{query_queue} } == @$queue) {
1572	if (@$queue) {	2912	if (@$queue) {
…		…
1574	} else {	2914	} else {
1575	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2915	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1576	}	2916	}
1577	}	2917	}
1578	},	2918	},
		2919	on_exticmd => sub {
		2920	my ($ns, $buf) = @_;
		2921
		2922	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2923
		2924	if (ref $msg) {
		2925	my ($type, $reply, @payload) =
		2926	"ARRAY" eq ref $msg
		2927	? @$msg
		2928	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2929
		2930	my @reply;
		2931
		2932	if (my $cb = $EXTICMD{$type}) {
		2933	@reply = $cb->($ns, @payload);
		2934	}
		2935
		2936	$ns->ext_reply ($reply, @reply)
		2937	if $reply;
		2938
		2939	} else {
		2940	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2941	}
		2942
		2943	cf::override;
		2944	},
1579	);	2945	);
1580		2946
1581	=item $client->coro (\&cb)	2947	=item $client->async (\&cb)
1582		2948
1583	Create a new coroutine, running the specified callback. The coroutine will	2949	Create a new coroutine, running the specified callback. The coroutine will
1584	be automatically cancelled when the client gets destroyed (e.g. on logout,	2950	be automatically cancelled when the client gets destroyed (e.g. on logout,
1585	or loss of connection).	2951	or loss of connection).
1586		2952
1587	=cut	2953	=cut
1588		2954
1589	sub cf::client::coro {	2955	sub cf::client::async {
1590	my ($self, $cb) = @_;	2956	my ($self, $cb) = @_;
1591		2957
1592	my $coro; $coro = async {	2958	my $coro = &Coro::async ($cb);
1593	eval {
1594	$cb->();
1595	};
1596	warn $@ if $@;
1597	};
1598		2959
1599	$coro->on_destroy (sub {	2960	$coro->on_destroy (sub {
1600	delete $self->{_coro}{$coro+0};	2961	delete $self->{_coro}{$coro+0};
1601	});	2962	});
1602		2963
…		…
1629	our $safe = new Safe "safe";	2990	our $safe = new Safe "safe";
1630	our $safe_hole = new Safe::Hole;	2991	our $safe_hole = new Safe::Hole;
1631		2992
1632	$SIG{FPE} = 'IGNORE';	2993	$SIG{FPE} = 'IGNORE';
1633		2994
1634	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2995	$safe->permit_only (Opcode::opset qw(
		2996	:base_core :base_mem :base_orig :base_math
		2997	grepstart grepwhile mapstart mapwhile
		2998	sort time
		2999	));
1635		3000
1636	# here we export the classes and methods available to script code	3001	# here we export the classes and methods available to script code
1637		3002
1638	=pod	3003	=pod
1639		3004
1640	The following fucntions and emthods are available within a safe environment:	3005	The following functions and methods are available within a safe environment:
1641		3006
1642	cf::object contr pay_amount pay_player map	3007	cf::object
		3008	contr pay_amount pay_player map x y force_find force_add destroy
		3009	insert remove name archname title slaying race decrease_ob_nr
		3010
1643	cf::object::player player	3011	cf::object::player
1644	cf::player peaceful	3012	player
1645	cf::map trigger	3013
		3014	cf::player
		3015	peaceful
		3016
		3017	cf::map
		3018	trigger
1646		3019
1647	=cut	3020	=cut
1648		3021
1649	for (	3022	for (
1650	["cf::object" => qw(contr pay_amount pay_player map)],	3023	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3024	insert remove inv name archname title slaying race
		3025	decrease_ob_nr destroy)],
1651	["cf::object::player" => qw(player)],	3026	["cf::object::player" => qw(player)],
1652	["cf::player" => qw(peaceful)],	3027	["cf::player" => qw(peaceful)],
1653	["cf::map" => qw(trigger)],	3028	["cf::map" => qw(trigger)],
1654	) {	3029	) {
1655	no strict 'refs';	3030	no strict 'refs';
…		…
1726	=back	3101	=back
1727		3102
1728	=cut	3103	=cut
1729		3104
1730	#############################################################################	3105	#############################################################################
		3106	# the server's init and main functions
1731		3107
1732	=head2 EXTENSION DATABASE SUPPORT	3108	sub load_facedata($) {
		3109	my ($path) = @_;
1733		3110
1734	Crossfire maintains a very simple database for extension use. It can	3111	# HACK to clear player env face cache, we need some signal framework
1735	currently store anything that can be serialised using Storable, which	3112	# for this (global event?)
1736	excludes objects.	3113	%ext::player_env::MUSIC_FACE_CACHE = ();
1737		3114
1738	The parameter C<$family> should best start with the name of the extension	3115	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1739	using it, it should be unique.
1740		3116
1741	=over 4	3117	warn "loading facedata from $path\n";
1742		3118
1743	=item $hashref = cf::db_get $family	3119	my $facedata;
		3120	0 < aio_load $path, $facedata
		3121	or die "$path: $!";
1744		3122
1745	Return a hashref for use by the extension C<$family>, which can be	3123	$facedata = Coro::Storable::thaw $facedata;
1746	modified. After modifications, you have to call C<cf::db_dirty> or
1747	C<cf::db_sync>.
1748		3124
1749	=item $value = cf::db_get $family => $key	3125	$facedata->{version} == 2
		3126	or cf::cleanup "$path: version mismatch, cannot proceed.";
1750		3127
1751	Returns a single value from the database	3128	# patch in the exptable
1752		3129	$facedata->{resource}{"res/exp_table"} = {
1753	=item cf::db_put $family => $hashref	3130	type => FT_RSRC,
1754		3131	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1755	Stores the given family hashref into the database. Updates are delayed, if
1756	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1757
1758	=item cf::db_put $family => $key => $value
1759
1760	Stores the given C<$value> in the family hash. Updates are delayed, if you
1761	want the data to be synced to disk immediately, use C<cf::db_sync>.
1762
1763	=item cf::db_dirty
1764
1765	Marks the database as dirty, to be updated at a later time.
1766
1767	=item cf::db_sync
1768
1769	Immediately write the database to disk I<if it is dirty>.
1770
1771	=cut
1772
1773	our $DB;
1774
1775	{
1776	my $path = cf::localdir . "/database.pst";
1777
1778	sub db_load() {
1779	warn "loading database $path\n";#d# remove later
1780	$DB = stat $path ? Storable::retrieve $path : { };
1781	}
1782
1783	my $pid;
1784
1785	sub db_save() {
1786	warn "saving database $path\n";#d# remove later
1787	waitpid $pid, 0 if $pid;
1788	if (0 == ($pid = fork)) {
1789	$DB->{_meta}{version} = 1;
1790	Storable::nstore $DB, "$path~";
1791	rename "$path~", $path;
1792	cf::_exit 0 if defined $pid;
1793	}
1794	}
1795
1796	my $dirty;
1797
1798	sub db_sync() {
1799	db_save if $dirty;
1800	undef $dirty;
1801	}
1802
1803	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1804	db_sync;
1805	});	3132	};
		3133	cf::cede_to_tick;
1806		3134
1807	sub db_dirty() {
1808	$dirty = 1;
1809	$idle->start;
1810	}	3135	{
		3136	my $faces = $facedata->{faceinfo};
1811		3137
1812	sub db_get($;$) {	3138	while (my ($face, $info) = each %$faces) {
1813	@_ >= 2	3139	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1814	? $DB->{$_[0]}{$_[1]}	3140	cf::face::set_visibility $idx, $info->{visibility};
1815	: ($DB->{$_[0]} ||= { })	3141	cf::face::set_magicmap $idx, $info->{magicmap};
1816	}	3142	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3143	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1817		3144
1818	sub db_put($$;$) {	3145	cf::cede_to_tick;
1819	if (@_ >= 3) {
1820	$DB->{$_[0]}{$_[1]} = $_[2];
1821	} else {
1822	$DB->{$_[0]} = $_[1];
1823	}
1824	db_dirty;
1825	}
1826
1827	cf::global->attach (
1828	prio => 10000,
1829	on_cleanup => sub {
1830	db_sync;
1831	},	3146	}
1832	);
1833	}
1834		3147
1835	#############################################################################	3148	while (my ($face, $info) = each %$faces) {
1836	# the server's main()	3149	next unless $info->{smooth};
		3150	my $idx = cf::face::find $face
		3151	or next;
		3152	if (my $smooth = cf::face::find $info->{smooth}) {
		3153	cf::face::set_smooth $idx, $smooth;
		3154	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3155	} else {
		3156	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3157	}
1837		3158
1838	sub cfg_load {	3159	cf::cede_to_tick;
		3160	}
		3161	}
		3162
		3163	{
		3164	my $anims = $facedata->{animinfo};
		3165
		3166	while (my ($anim, $info) = each %$anims) {
		3167	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3168	cf::cede_to_tick;
		3169	}
		3170
		3171	cf::anim::invalidate_all; # d'oh
		3172	}
		3173
		3174	{
		3175	# TODO: for gcfclient pleasure, we should give resources
		3176	# that gcfclient doesn't grok a >10000 face index.
		3177	my $res = $facedata->{resource};
		3178
		3179	my $soundconf = delete $res->{"res/sound.conf"};
		3180
		3181	while (my ($name, $info) = each %$res) {
		3182	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3183	my $data;
		3184
		3185	if ($info->{type} & 1) {
		3186	# prepend meta info
		3187
		3188	my $meta = $enc->encode ({
		3189	name => $name,
		3190	%{ $info->{meta} || {} },
		3191	});
		3192
		3193	$data = pack "(w/a*)*", $meta, $info->{data};
		3194	} else {
		3195	$data = $info->{data};
		3196	}
		3197
		3198	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3199	cf::face::set_type $idx, $info->{type};
		3200
		3201	cf::cede_to_tick;
		3202	}
		3203
		3204	if ($soundconf) {
		3205	$soundconf = $enc->decode (delete $soundconf->{data});
		3206
		3207	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3208	my $sound = $soundconf->{compat}[$_]
		3209	or next;
		3210
		3211	my $face = cf::face::find "sound/$sound->[1]";
		3212	cf::sound::set $sound->[0] => $face;
		3213	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3214	}
		3215
		3216	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3217	my $face = cf::face::find "sound/$v";
		3218	cf::sound::set $k => $face;
		3219	}
		3220	}
		3221	}
		3222
		3223	1
		3224	}
		3225
		3226	register_exticmd fx_want => sub {
		3227	my ($ns, $want) = @_;
		3228
		3229	while (my ($k, $v) = each %$want) {
		3230	$ns->fx_want ($k, $v);
		3231	}
		3232	};
		3233
		3234	sub reload_regions {
		3235	# HACK to clear player env face cache, we need some signal framework
		3236	# for this (global event?)
		3237	%ext::player_env::MUSIC_FACE_CACHE = ();
		3238
		3239	load_resource_file "$MAPDIR/regions"
		3240	or die "unable to load regions file\n";
		3241
		3242	for (cf::region::list) {
		3243	$_->{match} = qr/$_->{match}/
		3244	if exists $_->{match};
		3245	}
		3246	}
		3247
		3248	sub reload_facedata {
		3249	load_facedata "$DATADIR/facedata"
		3250	or die "unable to load facedata\n";
		3251	}
		3252
		3253	sub reload_archetypes {
		3254	load_resource_file "$DATADIR/archetypes"
		3255	or die "unable to load archetypes\n";
		3256	#d# NEED to laod twice to resolve forward references
		3257	# this really needs to be done in an extra post-pass
		3258	# (which needs to be synchronous, so solve it differently)
		3259	load_resource_file "$DATADIR/archetypes"
		3260	or die "unable to load archetypes\n";
		3261	}
		3262
		3263	sub reload_treasures {
		3264	load_resource_file "$DATADIR/treasures"
		3265	or die "unable to load treasurelists\n";
		3266	}
		3267
		3268	sub reload_resources {
		3269	warn "reloading resource files...\n";
		3270
		3271	reload_regions;
		3272	reload_facedata;
		3273	#reload_archetypes;#d#
		3274	reload_archetypes;
		3275	reload_treasures;
		3276
		3277	warn "finished reloading resource files\n";
		3278	}
		3279
		3280	sub init {
		3281	reload_resources;
		3282	}
		3283
		3284	sub reload_config {
1839	open my $fh, "<:utf8", cf::confdir . "/config"	3285	open my $fh, "<:utf8", "$CONFDIR/config"
1840	or return;	3286	or return;
1841		3287
1842	local $/;	3288	local $/;
1843	*CFG = YAML::Syck::Load <$fh>;	3289	*CFG = YAML::Syck::Load <$fh>;
		3290
		3291	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3292
		3293	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3294	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3295
		3296	if (exists $CFG{mlockall}) {
		3297	eval {
		3298	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3299	and die "WARNING: m(un)lockall failed: $!\n";
		3300	};
		3301	warn $@ if $@;
		3302	}
1844	}	3303	}
1845		3304
1846	sub main {	3305	sub main {
1847	# we must not ever block the main coroutine	3306	# we must not ever block the main coroutine
1848	local $Coro::idle = sub {	3307	local $Coro::idle = sub {
1849	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3308	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1850	(Coro::unblock_sub {	3309	(async {
		3310	$Coro::current->{desc} = "IDLE BUG HANDLER";
1851	Event::one_event;	3311	Event::one_event;
1852	})->();	3312	})->prio (Coro::PRIO_MAX);
1853	};	3313	};
1854		3314
1855	cfg_load;	3315	reload_config;
1856	db_load;	3316	db_init;
1857	load_extensions;	3317	load_extensions;
		3318
		3319	$TICK_WATCHER->start;
1858	Event::loop;	3320	Event::loop;
1859	}	3321	}
1860		3322
1861	#############################################################################	3323	#############################################################################
1862	# initialisation	3324	# initialisation and cleanup
1863		3325
		3326	# install some emergency cleanup handlers
		3327	BEGIN {
		3328	for my $signal (qw(INT HUP TERM)) {
		3329	Event->signal (
		3330	reentrant => 0,
		3331	data => WF_AUTOCANCEL,
		3332	signal => $signal,
		3333	prio => 0,
		3334	cb => sub {
		3335	cf::cleanup "SIG$signal";
		3336	},
		3337	);
		3338	}
		3339	}
		3340
		3341	sub write_runtime {
		3342	my $runtime = "$LOCALDIR/runtime";
		3343
		3344	# first touch the runtime file to show we are still running:
		3345	# the fsync below can take a very very long time.
		3346
		3347	IO::AIO::aio_utime $runtime, undef, undef;
		3348
		3349	my $guard = cf::lock_acquire "write_runtime";
		3350
		3351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3352	or return;
		3353
		3354	my $value = $cf::RUNTIME + 90 + 10;
		3355	# 10 is the runtime save interval, for a monotonic clock
		3356	# 60 allows for the watchdog to kill the server.
		3357
		3358	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3359	and return;
		3360
		3361	# always fsync - this file is important
		3362	aio_fsync $fh
		3363	and return;
		3364
		3365	# touch it again to show we are up-to-date
		3366	aio_utime $fh, undef, undef;
		3367
		3368	close $fh
		3369	or return;
		3370
		3371	aio_rename "$runtime~", $runtime
		3372	and return;
		3373
		3374	warn "runtime file written.\n";
		3375
		3376	1
		3377	}
		3378
		3379	sub emergency_save() {
		3380	my $freeze_guard = cf::freeze_mainloop;
		3381
		3382	warn "enter emergency perl save\n";
		3383
		3384	cf::sync_job {
		3385	# use a peculiar iteration method to avoid tripping on perl
		3386	# refcount bugs in for. also avoids problems with players
		3387	# and maps saved/destroyed asynchronously.
		3388	warn "begin emergency player save\n";
		3389	for my $login (keys %cf::PLAYER) {
		3390	my $pl = $cf::PLAYER{$login} or next;
		3391	$pl->valid or next;
		3392	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3393	$pl->save;
		3394	}
		3395	warn "end emergency player save\n";
		3396
		3397	warn "begin emergency map save\n";
		3398	for my $path (keys %cf::MAP) {
		3399	my $map = $cf::MAP{$path} or next;
		3400	$map->valid or next;
		3401	$map->save;
		3402	}
		3403	warn "end emergency map save\n";
		3404
		3405	warn "begin emergency database checkpoint\n";
		3406	BDB::db_env_txn_checkpoint $DB_ENV;
		3407	warn "end emergency database checkpoint\n";
		3408	};
		3409
		3410	warn "leave emergency perl save\n";
		3411	}
		3412
		3413	sub post_cleanup {
		3414	my ($make_core) = @_;
		3415
		3416	warn Carp::longmess "post_cleanup backtrace"
		3417	if $make_core;
		3418	}
		3419
1864	sub reload() {	3420	sub do_reload_perl() {
1865	# can/must only be called in main	3421	# can/must only be called in main
1866	if ($Coro::current != $Coro::main) {	3422	if ($Coro::current != $Coro::main) {
1867	warn "can only reload from main coroutine\n";	3423	warn "can only reload from main coroutine";
1868	return;	3424	return;
1869	}	3425	}
1870		3426
1871	warn "reloading...";	3427	warn "reloading...";
1872		3428
1873	local $FREEZE = 1;	3429	warn "entering sync_job";
		3430
		3431	cf::sync_job {
		3432	cf::write_runtime; # external watchdog should not bark
1874	cf::emergency_save;	3433	cf::emergency_save;
		3434	cf::write_runtime; # external watchdog should not bark
1875		3435
1876	eval {	3436	warn "syncing database to disk";
		3437	BDB::db_env_txn_checkpoint $DB_ENV;
		3438
1877	# if anything goes wrong in here, we should simply crash as we already saved	3439	# if anything goes wrong in here, we should simply crash as we already saved
1878		3440
1879	# cancel all watchers	3441	warn "cancelling all WF_AUTOCANCEL watchers";
1880	for (Event::all_watchers) {	3442	for (Event::all_watchers) {
1881	$_->cancel if $_->data & WF_AUTOCANCEL;	3443	$_->cancel if $_->data & WF_AUTOCANCEL;
1882	}	3444	}
1883		3445
		3446	warn "flushing outstanding aio requests";
		3447	for (;;) {
		3448	BDB::flush;
		3449	IO::AIO::flush;
		3450	Coro::cede_notself;
		3451	last unless IO::AIO::nreqs || BDB::nreqs;
		3452	warn "iterate...";
		3453	}
		3454
		3455	++$RELOAD;
		3456
1884	# cancel all extension coros	3457	warn "cancelling all extension coros";
1885	$_->cancel for values %EXT_CORO;	3458	$_->cancel for values %EXT_CORO;
1886	%EXT_CORO = ();	3459	%EXT_CORO = ();
1887		3460
1888	# unload all extensions	3461	warn "removing commands";
1889	for (@exts) {	3462	%COMMAND = ();
		3463
		3464	warn "removing ext/exti commands";
		3465	%EXTCMD = ();
		3466	%EXTICMD = ();
		3467
		3468	warn "unloading/nuking all extensions";
		3469	for my $pkg (@EXTS) {
1890	warn "unloading <$_>";	3470	warn "... unloading $pkg";
1891	unload_extension $_;	3471
		3472	if (my $cb = $pkg->can ("unload")) {
		3473	eval {
		3474	$cb->($pkg);
		3475	1
		3476	} or warn "$pkg unloaded, but with errors: $@";
1892	}	3477	}
1893		3478
		3479	warn "... nuking $pkg";
		3480	Symbol::delete_package $pkg;
		3481	}
		3482
1894	# unload all modules loaded from $LIBDIR	3483	warn "unloading all perl modules loaded from $LIBDIR";
1895	while (my ($k, $v) = each %INC) {	3484	while (my ($k, $v) = each %INC) {
1896	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3485	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1897		3486
1898	warn "removing <$k>";	3487	warn "... unloading $k";
1899	delete $INC{$k};	3488	delete $INC{$k};
1900		3489
1901	$k =~ s/\.pm$//;	3490	$k =~ s/\.pm$//;
1902	$k =~ s/\//::/g;	3491	$k =~ s/\//::/g;
1903		3492
…		…
1906	}	3495	}
1907		3496
1908	Symbol::delete_package $k;	3497	Symbol::delete_package $k;
1909	}	3498	}
1910		3499
1911	# sync database to disk
1912	cf::db_sync;
1913	IO::AIO::flush;
1914
1915	# get rid of safe::, as good as possible	3500	warn "getting rid of safe::, as good as possible";
1916	Symbol::delete_package "safe::$_"	3501	Symbol::delete_package "safe::$_"
1917	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3502	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1918		3503
1919	# remove register_script_function callbacks
1920	# TODO
1921
1922	# unload cf.pm "a bit"	3504	warn "unloading cf.pm \"a bit\"";
1923	delete $INC{"cf.pm"};	3505	delete $INC{"cf.pm"};
		3506	delete $INC{"cf/pod.pm"};
1924		3507
1925	# don't, removes xs symbols, too,	3508	# don't, removes xs symbols, too,
1926	# and global variables created in xs	3509	# and global variables created in xs
1927	#Symbol::delete_package __PACKAGE__;	3510	#Symbol::delete_package __PACKAGE__;
1928		3511
1929	# reload cf.pm	3512	warn "unload completed, starting to reload now";
		3513
1930	warn "reloading cf.pm";	3514	warn "reloading cf.pm";
1931	require cf;	3515	require cf;
1932	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3516	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1933		3517
1934	# load config and database again	3518	warn "loading config and database again";
1935	cf::cfg_load;	3519	cf::reload_config;
1936	cf::db_load;
1937		3520
1938	# load extensions
1939	warn "load extensions";	3521	warn "loading extensions";
1940	cf::load_extensions;	3522	cf::load_extensions;
1941		3523
1942	# reattach attachments to objects	3524	warn "reattaching attachments to objects/players";
1943	warn "reattach";	3525	_global_reattach; # objects, sockets
1944	_global_reattach;	3526	warn "reattaching attachments to maps";
1945	};	3527	reattach $_ for values %MAP;
		3528	warn "reattaching attachments to players";
		3529	reattach $_ for values %PLAYER;
1946		3530
1947	if ($@) {	3531	warn "leaving sync_job";
		3532
		3533	1
		3534	} or do {
1948	warn $@;	3535	warn $@;
1949	warn "error while reloading, exiting.";	3536	warn "error while reloading, exiting.";
1950	exit 1;	3537	exit 1;
1951	}	3538	};
1952		3539
1953	warn "reloaded successfully";	3540	warn "reloaded";
1954	};	3541	};
1955		3542
1956	#############################################################################	3543	our $RELOAD_WATCHER; # used only during reload
1957		3544
1958	unless ($LINK_MAP) {	3545	sub reload_perl() {
1959	$LINK_MAP = cf::map::new;	3546	# doing reload synchronously and two reloads happen back-to-back,
		3547	# coro crashes during coro_state_free->destroy here.
1960		3548
1961	$LINK_MAP->width (41);	3549	$RELOAD_WATCHER ||= Event->timer (
1962	$LINK_MAP->height (41);	3550	reentrant => 0,
1963	$LINK_MAP->alloc;
1964	$LINK_MAP->path ("{link}");
1965	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1966	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1967
1968	# dirty hack because... archetypes are not yet loaded
1969	Event->timer (
1970	after => 2,	3551	after => 0,
		3552	data => WF_AUTOCANCEL,
1971	cb => sub {	3553	cb => sub {
1972	$_[0]->w->cancel;	3554	do_reload_perl;
1973		3555	undef $RELOAD_WATCHER;
1974	# provide some exits "home"
1975	my $exit = cf::object::new "exit";
1976
1977	$exit->slaying ($EMERGENCY_POSITION->[0]);
1978	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1979	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1980
1981	$LINK_MAP->insert ($exit->clone, 19, 19);
1982	$LINK_MAP->insert ($exit->clone, 19, 20);
1983	$LINK_MAP->insert ($exit->clone, 19, 21);
1984	$LINK_MAP->insert ($exit->clone, 20, 19);
1985	$LINK_MAP->insert ($exit->clone, 20, 21);
1986	$LINK_MAP->insert ($exit->clone, 21, 19);
1987	$LINK_MAP->insert ($exit->clone, 21, 20);
1988	$LINK_MAP->insert ($exit->clone, 21, 21);
1989
1990	$exit->destroy;
1991	});	3556	},
1992		3557	);
1993	$LINK_MAP->{deny_save} = 1;
1994	$LINK_MAP->{deny_reset} = 1;
1995
1996	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1997	}	3558	}
1998
1999	register "<global>", __PACKAGE__;
2000		3559
2001	register_command "reload" => sub {	3560	register_command "reload" => sub {
2002	my ($who, $arg) = @_;	3561	my ($who, $arg) = @_;
2003		3562
2004	if ($who->flag (FLAG_WIZ)) {	3563	if ($who->flag (FLAG_WIZ)) {
2005	$who->message ("start of reload.");
2006	reload;
2007	$who->message ("end of reload.");	3564	$who->message ("reloading server.");
		3565	async {
		3566	$Coro::current->{desc} = "perl_reload";
		3567	reload_perl;
		3568	};
2008	}	3569	}
2009	};	3570	};
2010		3571
2011	unshift @INC, $LIBDIR;	3572	unshift @INC, $LIBDIR;
		3573
		3574	my $bug_warning = 0;
		3575
		3576	our @WAIT_FOR_TICK;
		3577	our @WAIT_FOR_TICK_BEGIN;
		3578
		3579	sub wait_for_tick {
		3580	return unless $TICK_WATCHER->is_active;
		3581	return if $Coro::current == $Coro::main;
		3582
		3583	my $signal = new Coro::Signal;
		3584	push @WAIT_FOR_TICK, $signal;
		3585	$signal->wait;
		3586	}
		3587
		3588	sub wait_for_tick_begin {
		3589	return unless $TICK_WATCHER->is_active;
		3590	return if $Coro::current == $Coro::main;
		3591
		3592	my $signal = new Coro::Signal;
		3593	push @WAIT_FOR_TICK_BEGIN, $signal;
		3594	$signal->wait;
		3595	}
2012		3596
2013	$TICK_WATCHER = Event->timer (	3597	$TICK_WATCHER = Event->timer (
2014	reentrant => 0,	3598	reentrant => 0,
		3599	parked => 1,
2015	prio => 0,	3600	prio => 0,
2016	at => $NEXT_TICK || $TICK,	3601	at => $NEXT_TICK || $TICK,
2017	data => WF_AUTOCANCEL,	3602	data => WF_AUTOCANCEL,
2018	cb => sub {	3603	cb => sub {
2019	unless ($FREEZE) {	3604	if ($Coro::current != $Coro::main) {
		3605	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3606	unless ++$bug_warning > 10;
		3607	return;
		3608	}
		3609
		3610	$NOW = $tick_start = Event::time;
		3611
2020	cf::server_tick; # one server iteration	3612	cf::server_tick; # one server iteration
		3613
2021	$RUNTIME += $TICK;	3614	$RUNTIME += $TICK;
2022	}
2023
2024	$NEXT_TICK += $TICK;	3615	$NEXT_TICK += $TICK;
2025		3616
		3617	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3618	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3619	Coro::async_pool {
		3620	$Coro::current->{desc} = "runtime saver";
		3621	write_runtime
		3622	or warn "ERROR: unable to write runtime file: $!";
		3623	};
		3624	}
		3625
		3626	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3627	$sig->send;
		3628	}
		3629	while (my $sig = shift @WAIT_FOR_TICK) {
		3630	$sig->send;
		3631	}
		3632
		3633	$NOW = Event::time;
		3634
2026	# if we are delayed by four ticks or more, skip them all	3635	# if we are delayed by four ticks or more, skip them all
2027	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3636	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2028		3637
2029	$TICK_WATCHER->at ($NEXT_TICK);	3638	$TICK_WATCHER->at ($NEXT_TICK);
2030	$TICK_WATCHER->start;	3639	$TICK_WATCHER->start;
		3640
		3641	$LOAD = ($NOW - $tick_start) / $TICK;
		3642	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3643
		3644	_post_tick;
2031	},	3645	},
2032	);	3646	);
2033		3647
		3648	{
		3649	BDB::min_parallel 8;
2034	IO::AIO::max_poll_time $TICK * 0.2;	3650	BDB::max_poll_time $TICK * 0.1;
2035		3651	$BDB_POLL_WATCHER = Event->io (
2036	Event->io (	3652	reentrant => 0,
2037	fd => IO::AIO::poll_fileno,	3653	fd => BDB::poll_fileno,
2038	poll => 'r',	3654	poll => 'r',
2039	prio => 5,	3655	prio => 0,
2040	data => WF_AUTOCANCEL,
2041	cb => \&IO::AIO::poll_cb,
2042	);
2043
2044	Event->timer (
2045	data => WF_AUTOCANCEL,	3656	data => WF_AUTOCANCEL,
		3657	cb => \&BDB::poll_cb,
		3658	);
		3659
		3660	BDB::set_sync_prepare {
		3661	my $status;
		3662	my $current = $Coro::current;
		3663	(
		3664	sub {
		3665	$status = $!;
		3666	$current->ready; undef $current;
		3667	},
		3668	sub {
		3669	Coro::schedule while defined $current;
		3670	$! = $status;
		3671	},
		3672	)
		3673	};
		3674
		3675	unless ($DB_ENV) {
		3676	$DB_ENV = BDB::db_env_create;
		3677	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3678	| BDB::LOG_AUTOREMOVE, 1);
		3679	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3680	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3681
		3682	cf::sync_job {
		3683	eval {
		3684	BDB::db_env_open
		3685	$DB_ENV,
		3686	$BDBDIR,
		3687	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3688	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3689	0666;
		3690
		3691	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3692	};
		3693
		3694	cf::cleanup "db_env_open(db): $@" if $@;
		3695	};
		3696	}
		3697
		3698	$BDB_DEADLOCK_WATCHER = Event->timer (
2046	after => 0,	3699	after => 3,
2047	interval => 10,	3700	interval => 1,
		3701	hard => 1,
		3702	prio => 0,
		3703	data => WF_AUTOCANCEL,
2048	cb => sub {	3704	cb => sub {
2049	(Coro::unblock_sub {	3705	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2050	write_runtime	3706	},
2051	or warn "ERROR: unable to write runtime file: $!";	3707	);
		3708	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3709	after => 11,
		3710	interval => 60,
		3711	hard => 1,
		3712	prio => 0,
		3713	data => WF_AUTOCANCEL,
		3714	cb => sub {
		3715	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3716	},
		3717	);
		3718	$BDB_TRICKLE_WATCHER = Event->timer (
		3719	after => 5,
		3720	interval => 10,
		3721	hard => 1,
		3722	prio => 0,
		3723	data => WF_AUTOCANCEL,
		3724	cb => sub {
		3725	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3726	},
		3727	);
		3728	}
		3729
		3730	{
		3731	IO::AIO::min_parallel 8;
		3732
		3733	undef $Coro::AIO::WATCHER;
		3734	IO::AIO::max_poll_time $TICK * 0.1;
		3735	$AIO_POLL_WATCHER = Event->io (
		3736	reentrant => 0,
		3737	data => WF_AUTOCANCEL,
		3738	fd => IO::AIO::poll_fileno,
		3739	poll => 'r',
		3740	prio => 0,
		3741	cb => \&IO::AIO::poll_cb,
		3742	);
		3743	}
		3744
		3745	my $_log_backtrace;
		3746
		3747	sub _log_backtrace {
		3748	my ($msg, @addr) = @_;
		3749
		3750	$msg =~ s/\n//;
		3751
		3752	# limit the # of concurrent backtraces
		3753	if ($_log_backtrace < 2) {
		3754	++$_log_backtrace;
		3755	async {
		3756	$Coro::current->{desc} = "abt $msg";
		3757
		3758	my @bt = fork_call {
		3759	@addr = map { sprintf "%x", $_ } @addr;
		3760	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3761	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3762	or die "addr2line: $!";
		3763
		3764	my @funcs;
		3765	my @res = <$fh>;
		3766	chomp for @res;
		3767	while (@res) {
		3768	my ($func, $line) = splice @res, 0, 2, ();
		3769	push @funcs, "[$func] $line";
		3770	}
		3771
		3772	@funcs
		3773	};
		3774
		3775	LOG llevInfo, "[ABT] $msg\n";
		3776	LOG llevInfo, "[ABT] $_\n" for @bt;
		3777	--$_log_backtrace;
2052	})->();	3778	};
		3779	} else {
		3780	LOG llevInfo, "[ABT] $msg\n";
		3781	LOG llevInfo, "[ABT] [suppressed]\n";
2053	},	3782	}
2054	);	3783	}
		3784
		3785	# load additional modules
		3786	use cf::pod;
		3787
		3788	END { cf::emergency_save }
2055		3789
2056	1	3790	1
2057		3791

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