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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.130 by root, Thu Jan 4 00:08:08 2007 UTC vs.
Revision 1.368 by root, Wed Sep 12 11:18:25 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 Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.64 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
		28	use Data::Dumper;
20	use Digest::MD5;	29	use Digest::MD5;
21	use Fcntl;	30	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.32 ();
24	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
25		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
27		44
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
30		47
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		49
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		51
35	our %COMMAND = ();	52	our %COMMAND = ();
36	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
38		60
		61	our $RELOAD; # number of reloads so far
39	our @EVENT;	62	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		63
42	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	80	our $NEXT_TICK;
45	our $NOW;	81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $BDB_CHECKPOINT_WATCHER;
		86	our $BDB_TRICKLE_WATCHER;
		87	our $DB_ENV;
46		88
47	our %CFG;	89	our %CFG;
48		90
49	our $UPTIME; $UPTIME ||= time;	91	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	92	our $RUNTIME;
51		93
52	our %MAP; # all maps	94	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	95	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	96	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	97
56	our %EXT_CORO;	98	# used to convert map paths into valid unix filenames by replacing / by ∕
		99	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		100
		101	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		102	our $LOADAVG; # same thing, but with alpha-smoothing
		103	our $tick_start; # for load detecting purposes
57		104
58	binmode STDOUT;	105	binmode STDOUT;
59	binmode STDERR;	106	binmode STDERR;
60		107
61	# read virtual server time, if available	108	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	109	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	110	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	111	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	112	$RUNTIME = <$fh> + 0.;
66	}	113	}
67		114
68	mkdir cf::localdir;	115	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	116	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		117
74	# a special map that is always available	118	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		119
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	120	sub cf::map::normalise;
78		121
79	#############################################################################	122	#############################################################################
80		123
81	=head2 GLOBAL VARIABLES	124	=head2 GLOBAL VARIABLES
82		125
…		…
89	=item $cf::RUNTIME	132	=item $cf::RUNTIME
90		133
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	134	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	135	every server tick.
93		136
94	=item $cf::LIBDIR	137	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		138	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		139	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		140
96	The perl library directory, where extensions and cf-specific modules can	141	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	142	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		143	unique-items directory, player file directory, random maps directory and
		144	database environment.
98		145
99	=item $cf::NOW	146	=item $cf::NOW
100		147
101	The time of the last (current) server tick.	148	The time of the last (current) server tick.
102		149
103	=item $cf::TICK	150	=item $cf::TICK
104		151
105	The interval between server ticks, in seconds.	152	The interval between server ticks, in seconds.
		153
		154	=item $cf::LOADAVG
		155
		156	The current CPU load on the server (alpha-smoothed), as a value between 0
		157	(none) and 1 (overloaded), indicating how much time is spent on processing
		158	objects per tick. Healthy values are < 0.5.
		159
		160	=item $cf::LOAD
		161
		162	The raw value load value from the last tick.
106		163
107	=item %cf::CFG	164	=item %cf::CFG
108		165
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	166	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	167	from wherever your confdir points to.
		168
		169	=item cf::wait_for_tick, cf::wait_for_tick_begin
		170
		171	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		172	returns directly I<after> the tick processing (and consequently, can only wake one process
		173	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		174
		175	=item @cf::INVOKE_RESULTS
		176
		177	This array contains the results of the last C<invoke ()> call. When
		178	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		179	that call.
111		180
112	=back	181	=back
113		182
114	=cut	183	=cut
115		184
116	BEGIN {	185	BEGIN {
117	*CORE::GLOBAL::warn = sub {	186	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	187	my $msg = join "", @_;
119	utf8::encode $msg;
120		188
121	$msg .= "\n"	189	$msg .= "\n"
122	unless $msg =~ /\n$/;	190	unless $msg =~ /\n$/;
123		191
		192	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		193
124	LOG llevError, "cfperl: $msg";	194	LOG llevError, $msg;
125	};	195	};
126	}	196	}
127		197
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	198	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	199	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	200	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	201	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	202	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		203	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	204	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		205
135	# we bless all objects into (empty) derived classes to force a method lookup	206	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	207	# within the Safe compartment.
137	for my $pkg (qw(	208	for my $pkg (qw(
138	cf::global cf::attachable	209	cf::global cf::attachable
…		…
147		218
148	$Event::DIED = sub {	219	$Event::DIED = sub {
149	warn "error in event callback: @_";	220	warn "error in event callback: @_";
150	};	221	};
151		222
152	my %ext_pkg;	223	#############################################################################
153	my @exts;
154	my @hook;
155		224
156	=head2 UTILITY FUNCTIONS	225	=head2 UTILITY FUNCTIONS
157		226
158	=over 4	227	=over 4
159		228
160	=cut	229	=item dumpval $ref
161		230
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	231	=cut
		232
		233	sub dumpval {
		234	eval {
		235	local $SIG{__DIE__};
		236	my $d;
		237	if (1) {
		238	$d = new Data::Dumper([$_[0]], ["*var"]);
		239	$d->Terse(1);
		240	$d->Indent(2);
		241	$d->Quotekeys(0);
		242	$d->Useqq(1);
		243	#$d->Bless(...);
		244	$d->Seen($_[1]) if @_ > 1;
		245	$d = $d->Dump();
		246	}
		247	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		248	$d
		249	} || "[unable to dump $_[0]: '$@']";
		250	}
163		251
164	=item $ref = cf::from_json $json	252	=item $ref = cf::from_json $json
165		253
166	Converts a JSON string into the corresponding perl data structure.	254	Converts a JSON string into the corresponding perl data structure.
167		255
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	256	=item $json = cf::to_json $ref
176		257
177	Converts a perl data structure into its JSON representation.	258	Converts a perl data structure into its JSON representation.
178		259
179	=cut	260	=cut
180		261
181	sub to_json($) {	262	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		263
186	=item my $guard = cf::guard { BLOCK }	264	sub to_json ($) { $json_coder->encode ($_[0]) }
187		265	sub from_json ($) { $json_coder->decode ($_[0]) }
188	Run the given callback when the guard object gets destroyed (useful for
189	coroutine cancellations).
190
191	You can call C<< ->cancel >> on the guard object to stop the block from
192	being executed.
193
194	=cut
195
196	sub guard(&) {
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199
200	sub cf::guard::cancel {
201	${$_[0]} = sub { };
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}
207		266
208	=item cf::lock_wait $string	267	=item cf::lock_wait $string
209		268
210	Wait until the given lock is available. See cf::lock_acquire.	269	Wait until the given lock is available. See cf::lock_acquire.
211		270
212	=item my $lock = cf::lock_acquire $string	271	=item my $lock = cf::lock_acquire $string
213		272
214	Wait until the given lock is available and then acquires it and returns	273	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	274	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	275	for example when the coroutine gets canceled), the lock is automatically
217	returned.	276	returned.
218		277
		278	Locks are *not* recursive, locking from the same coro twice results in a
		279	deadlocked coro.
		280
219	Lock names should begin with a unique identifier (for example, find_map	281	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	282	uses map_find and cf::map::load uses map_load).
		283
		284	=item $locked = cf::lock_active $string
		285
		286	Return true if the lock is currently active, i.e. somebody has locked it.
221		287
222	=cut	288	=cut
223		289
224	our %LOCK;	290	our %LOCK;
		291	our %LOCKER;#d#
225		292
226	sub lock_wait($) {	293	sub lock_wait($) {
227	my ($key) = @_;	294	my ($key) = @_;
		295
		296	if ($LOCKER{$key} == $Coro::current) {#d#
		297	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		298	return;#d#
		299	}#d#
228		300
229	# wait for lock, if any	301	# wait for lock, if any
230	while ($LOCK{$key}) {	302	while ($LOCK{$key}) {
231	push @{ $LOCK{$key} }, $Coro::current;	303	push @{ $LOCK{$key} }, $Coro::current;
232	Coro::schedule;	304	Coro::schedule;
…		…
238		310
239	# wait, to be sure we are not locked	311	# wait, to be sure we are not locked
240	lock_wait $key;	312	lock_wait $key;
241		313
242	$LOCK{$key} = [];	314	$LOCK{$key} = [];
		315	$LOCKER{$key} = $Coro::current;#d#
243		316
244	cf::guard {	317	Coro::guard {
		318	delete $LOCKER{$key};#d#
245	# wake up all waiters, to be on the safe side	319	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	320	$_->ready for @{ delete $LOCK{$key} };
247	}	321	}
248	}	322	}
249		323
		324	sub lock_active($) {
		325	my ($key) = @_;
		326
		327	! ! $LOCK{$key}
		328	}
		329
		330	sub freeze_mainloop {
		331	return unless $TICK_WATCHER->is_active;
		332
		333	my $guard = Coro::guard {
		334	$TICK_WATCHER->start;
		335	};
		336	$TICK_WATCHER->stop;
		337	$guard
		338	}
		339
		340	=item cf::get_slot $time[, $priority[, $name]]
		341
		342	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		343	This call blocks and returns only when you have at least C<$time> seconds
		344	of cpu time till the next tick. The slot is only valid till the next cede.
		345
		346	The optional C<$name> can be used to identify the job to run. It might be
		347	used for statistical purposes and should identify the same time-class.
		348
		349	Useful for short background jobs.
		350
		351	=cut
		352
		353	our @SLOT_QUEUE;
		354	our $SLOT_QUEUE;
		355
		356	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		357	$SLOT_QUEUE = Coro::async {
		358	my $signal = new Coro::Signal;
		359
		360	while () {
		361	next_job:
		362	my $avail = cf::till_tick;
		363	if ($avail > 0.01) {
		364	for (0 .. $#SLOT_QUEUE) {
		365	if ($SLOT_QUEUE[$_][0] < $avail) {
		366	my $job = splice @SLOT_QUEUE, $_, 1, ();
		367	$job->[2]->send;
		368	Coro::cede;
		369	goto next_job;
		370	}
		371	}
		372	}
		373
		374	if (@SLOT_QUEUE) {
		375	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		376	push @cf::WAIT_FOR_TICK, $signal;
		377	$signal->wait;
		378	} else {
		379	Coro::schedule;
		380	}
		381	}
		382	};
		383
		384	sub get_slot($;$$) {
		385	my ($time, $pri, $name) = @_;
		386
		387	$time = $TICK * .6 if $time > $TICK * .6;
		388	my $sig = new Coro::Signal;
		389
		390	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		391	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		392	$SLOT_QUEUE->ready;
		393	$sig->wait;
		394	}
		395
250	=item cf::async { BLOCK }	396	=item cf::async { BLOCK }
251		397
252	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	398	Currently the same as Coro::async_pool, meaning you cannot use
253	error instead of exiting the server in case of a problem.	399	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		400	thing you are allowed to do is call C<prio> on it.
254		401
255	=cut	402	=cut
256		403
257	sub async(&) {	404	BEGIN { *async = \&Coro::async_pool }
258	my ($cb) = @_;
259
260	Coro::async {
261	eval { $cb->() };
262	warn $@ if $@;
263	}
264	}
265		405
266	=item cf::sync_job { BLOCK }	406	=item cf::sync_job { BLOCK }
267		407
268	The design of crossfire+ requires that the main coro ($Coro::main) is	408	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
269	always able to handle events or runnable, as crossfire+ is only partly	409	is always able to handle events or runnable, as Crossfire TRT is only
270	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	410	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		411	acceptable.
271		412
272	If it must be done, put the blocking parts into C<sync_job>. This will run	413	If it must be done, put the blocking parts into C<sync_job>. This will run
273	the given BLOCK in another coroutine while waiting for the result. The	414	the given BLOCK in another coroutine while waiting for the result. The
274	server will be frozen during this time, so the block should either finish	415	server will be frozen during this time, so the block should either finish
275	fast or be very important.	416	fast or be very important.
…		…
278		419
279	sub sync_job(&) {	420	sub sync_job(&) {
280	my ($job) = @_;	421	my ($job) = @_;
281		422
282	if ($Coro::current == $Coro::main) {	423	if ($Coro::current == $Coro::main) {
		424	my $time = Event::time;
		425
283	# this is the main coro, too bad, we have to block	426	# this is the main coro, too bad, we have to block
284	# till the operation succeeds, freezing the server :/	427	# till the operation succeeds, freezing the server :/
285		428
286	# TODO: use suspend/resume instead	429	# TODO: use suspend/resume instead
287	# (but this is cancel-safe)	430	# (but this is cancel-safe)
288	local $FREEZE = 1;	431	my $freeze_guard = freeze_mainloop;
289		432
290	my $busy = 1;	433	my $busy = 1;
291	my @res;	434	my @res;
292		435
293	(Coro::async {	436	(async {
294	@res = eval { $job->() };	437	@res = eval { $job->() };
295	warn $@ if $@;	438	warn $@ if $@;
296	undef $busy;	439	undef $busy;
297	})->prio (Coro::PRIO_MAX);	440	})->prio (Coro::PRIO_MAX);
298		441
299	while ($busy) {	442	while ($busy) {
300	Coro::cede_notself;	443	Coro::cede or Event::one_event;
301	Event::one_event unless Coro::nready;
302	}	444	}
		445
		446	$time = Event::time - $time;
		447
		448	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		449	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		450
		451	$tick_start += $time; # do not account sync jobs to server load
303		452
304	wantarray ? @res : $res[0]	453	wantarray ? @res : $res[0]
305	} else {	454	} else {
306	# we are in another coroutine, how wonderful, everything just works	455	# we are in another coroutine, how wonderful, everything just works
307		456
308	$job->()	457	$job->()
309	}	458	}
310	}	459	}
311		460
312	=item $coro = cf::coro { BLOCK }	461	=item $coro = cf::async_ext { BLOCK }
313		462
314	Creates and returns a new coro. This coro is automcatially being canceled	463	Like async, but this coro is automatically being canceled when the
315	when the extension calling this is being unloaded.	464	extension calling this is being unloaded.
316		465
317	=cut	466	=cut
318		467
319	sub coro(&) {	468	sub async_ext(&) {
320	my $cb = shift;	469	my $cb = shift;
321		470
322	my $coro = &cf::async ($cb);	471	my $coro = &Coro::async ($cb);
323		472
324	$coro->on_destroy (sub {	473	$coro->on_destroy (sub {
325	delete $EXT_CORO{$coro+0};	474	delete $EXT_CORO{$coro+0};
326	});	475	});
327	$EXT_CORO{$coro+0} = $coro;	476	$EXT_CORO{$coro+0} = $coro;
328		477
329	$coro	478	$coro
330	}	479	}
331		480
332	sub write_runtime {	481	=item fork_call { }, $args
333	my $runtime = cf::localdir . "/runtime";
334		482
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	483	Executes the given code block with the given arguments in a seperate
336	or return;	484	process, returning the results. Everything must be serialisable with
		485	Coro::Storable. May, of course, block. Note that the executed sub may
		486	never block itself or use any form of Event handling.
337		487
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	488	=cut
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;
341		489
342	aio_fsync $fh	490	sub fork_call(&@) {
343	and return;	491	my ($cb, @args) = @_;
344		492
345	close $fh	493	# we seemingly have to make a local copy of the whole thing,
346	or return;	494	# otherwise perl prematurely frees the stuff :/
		495	# TODO: investigate and fix (likely this will be rather laborious)
347		496
348	aio_rename "$runtime~", $runtime	497	my @res = Coro::Util::fork_eval {
349	and return;	498	reset_signals;
		499	&$cb
		500	}, @args;
350		501
		502	wantarray ? @res : $res[-1]
		503	}
		504
		505	=item $value = cf::db_get $family => $key
		506
		507	Returns a single value from the environment database.
		508
		509	=item cf::db_put $family => $key => $value
		510
		511	Stores the given C<$value> in the family. It can currently store binary
		512	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		513
		514	=item $db = cf::db_table "name"
		515
		516	Create and/or open a new database table. The string must not be "db" and must be unique
		517	within each server.
		518
		519	=cut
		520
		521	sub db_table($) {
		522	my ($name) = @_;
		523	my $db = BDB::db_create $DB_ENV;
		524
		525	eval {
		526	$db->set_flags (BDB::CHKSUM);
		527
		528	utf8::encode $name;
		529	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		530	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		531	cf::cleanup "db_open(db): $!" if $!;
		532	};
		533	cf::cleanup "db_open(db): $@" if $@;
		534
		535	$db
		536	}
		537
		538	our $DB;
		539
		540	sub db_init {
		541	cf::sync_job {
		542	$DB ||= db_table "db";
		543	};
		544	}
		545
		546	sub db_get($$) {
		547	my $key = "$_[0]/$_[1]";
		548
		549	cf::sync_job {
		550	BDB::db_get $DB, undef, $key, my $data;
		551
		552	$! ? ()
		553	: $data
351	1	554	}
		555	}
		556
		557	sub db_put($$$) {
		558	BDB::dbreq_pri 4;
		559	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		560	}
		561
		562	=item cf::cache $id => [$paths...], $processversion => $process
		563
		564	Generic caching function that returns the value of the resource $id,
		565	caching and regenerating as required.
		566
		567	This function can block.
		568
		569	=cut
		570
		571	sub cache {
		572	my ($id, $src, $processversion, $process) = @_;
		573
		574	my $meta =
		575	join "\x00",
		576	$processversion,
		577	map {
		578	aio_stat $_
		579	and Carp::croak "$_: $!";
		580
		581	($_, (stat _)[7,9])
		582	} @$src;
		583
		584	my $dbmeta = db_get cache => "$id/meta";
		585	if ($dbmeta ne $meta) {
		586	# changed, we may need to process
		587
		588	my @data;
		589	my $md5;
		590
		591	for (0 .. $#$src) {
		592	0 <= aio_load $src->[$_], $data[$_]
		593	or Carp::croak "$src->[$_]: $!";
		594	}
		595
		596	# if processing is expensive, check
		597	# checksum first
		598	if (1) {
		599	$md5 =
		600	join "\x00",
		601	$processversion,
		602	map {
		603	cf::cede_to_tick;
		604	($src->[$_], Digest::MD5::md5_hex $data[$_])
		605	} 0.. $#$src;
		606
		607
		608	my $dbmd5 = db_get cache => "$id/md5";
		609	if ($dbmd5 eq $md5) {
		610	db_put cache => "$id/meta", $meta;
		611
		612	return db_get cache => "$id/data";
		613	}
		614	}
		615
		616	my $t1 = Time::HiRes::time;
		617	my $data = $process->(\@data);
		618	my $t2 = Time::HiRes::time;
		619
		620	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		621
		622	db_put cache => "$id/data", $data;
		623	db_put cache => "$id/md5" , $md5;
		624	db_put cache => "$id/meta", $meta;
		625
		626	return $data;
		627	}
		628
		629	db_get cache => "$id/data"
		630	}
		631
		632	=item cf::datalog type => key => value, ...
		633
		634	Log a datalog packet of the given type with the given key-value pairs.
		635
		636	=cut
		637
		638	sub datalog($@) {
		639	my ($type, %kv) = @_;
		640	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
352	}	641	}
353		642
354	=back	643	=back
355		644
356	=cut	645	=cut
357
358	#############################################################################
359
360	package cf::path;
361
362	sub new {
363	my ($class, $path, $base) = @_;
364
365	$path = $path->as_string if ref $path;
366
367	my $self = bless { }, $class;
368
369	# {... are special paths that are not touched
370	# ?xxx/... are special absolute paths
371	# ?random/... random maps
372	# /! non-realised random map exit
373	# /... normal maps
374	# ~/... per-player maps without a specific player (DO NOT USE)
375	# ~user/... per-player map of a specific user
376
377	if ($path =~ /^{/) {
378	# fine as it is
379	} elsif ($path =~ s{^\?random/}{}) {
380	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
381	$self->{random} = cf::from_json $data;
382	} else {
383	if ($path =~ s{^~([^/]+)?}{}) {
384	$self->{user_rel} = 1;
385
386	if (defined $1) {
387	$self->{user} = $1;
388	} elsif ($base =~ m{^~([^/]+)/}) {
389	$self->{user} = $1;
390	} else {
391	warn "cannot resolve user-relative path without user <$path,$base>\n";
392	}
393	} elsif ($path =~ /^\//) {
394	# already absolute
395	} else {
396	$base =~ s{[^/]+/?$}{};
397	return $class->new ("$base/$path");
398	}
399
400	for ($path) {
401	redo if s{/\.?/}{/};
402	redo if s{/[^/]+/\.\./}{/};
403	}
404	}
405
406	$self->{path} = $path;
407
408	$self
409	}
410
411	# the name / primary key / in-game path
412	sub as_string {
413	my ($self) = @_;
414
415	$self->{user_rel} ? "~$self->{user}$self->{path}"
416	: $self->{random} ? "?random/$self->{path}"
417	: $self->{path}
418	}
419
420	# the displayed name, this is a one way mapping
421	sub visible_name {
422	my ($self) = @_;
423
424	# if (my $rmp = $self->{random}) {
425	# # todo: be more intelligent about this
426	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
427	# } else {
428	$self->as_string
429	# }
430	}
431
432	# escape the /'s in the path
433	sub _escaped_path {
434	# ∕ is U+2215
435	(my $path = $_[0]{path}) =~ s/\//∕/g;
436	$path
437	}
438
439	# the original (read-only) location
440	sub load_path {
441	my ($self) = @_;
442
443	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
444	}
445
446	# the temporary/swap location
447	sub save_path {
448	my ($self) = @_;
449
450	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
451	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
452	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
453	}
454
455	# the unique path, might be eq to save_path
456	sub uniq_path {
457	my ($self) = @_;
458
459	$self->{user_rel} || $self->{random}
460	? undef
461	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
462	}
463
464	# return random map parameters, or undef
465	sub random_map_params {
466	my ($self) = @_;
467
468	$self->{random}
469	}
470
471	# this is somewhat ugly, but style maps do need special treatment
472	sub is_style_map {
473	$_[0]{path} =~ m{^/styles/}
474	}
475
476	package cf;
477		646
478	#############################################################################	647	#############################################################################
479		648
480	=head2 ATTACHABLE OBJECTS	649	=head2 ATTACHABLE OBJECTS
481		650
…		…
483	attach callbacks/event handlers (a collection of which is called an "attachment")	652	attach callbacks/event handlers (a collection of which is called an "attachment")
484	to it. All such attachable objects support the following methods.	653	to it. All such attachable objects support the following methods.
485		654
486	In the following description, CLASS can be any of C<global>, C<object>	655	In the following description, CLASS can be any of C<global>, C<object>
487	C<player>, C<client> or C<map> (i.e. the attachable objects in	656	C<player>, C<client> or C<map> (i.e. the attachable objects in
488	crossfire+).	657	Crossfire TRT).
489		658
490	=over 4	659	=over 4
491		660
492	=item $attachable->attach ($attachment, key => $value...)	661	=item $attachable->attach ($attachment, key => $value...)
493		662
…		…
607	our @CB_TYPE = (); # registry for type (cf-object class) based events	776	our @CB_TYPE = (); # registry for type (cf-object class) based events
608	our @CB_MAP = ();	777	our @CB_MAP = ();
609		778
610	my %attachment;	779	my %attachment;
611		780
		781	sub cf::attachable::thawer_merge {
		782	# simply override everything except _meta
		783	local $_[0]{_meta};
		784	%{$_[0]} = %{$_[1]};
		785	}
		786
612	sub _attach_cb($$$$) {	787	sub _attach_cb($$$$) {
613	my ($registry, $event, $prio, $cb) = @_;	788	my ($registry, $event, $prio, $cb) = @_;
614		789
615	use sort 'stable';	790	use sort 'stable';
616		791
…		…
650	$registry = $CB_TYPE[$object_type] ||= [];	825	$registry = $CB_TYPE[$object_type] ||= [];
651		826
652	} elsif ($type eq "subtype") {	827	} elsif ($type eq "subtype") {
653	defined $object_type or Carp::croak "subtype specified without type";	828	defined $object_type or Carp::croak "subtype specified without type";
654	my $object_subtype = shift @arg;	829	my $object_subtype = shift @arg;
655	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	830	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
656		831
657	} elsif ($type eq "package") {	832	} elsif ($type eq "package") {
658	my $pkg = shift @arg;	833	my $pkg = shift @arg;
659		834
660	while (my ($name, $id) = each %cb_id) {	835	while (my ($name, $id) = each %cb_id) {
…		…
689	_attach $registry, $klass, @attach;	864	_attach $registry, $klass, @attach;
690	}	865	}
691		866
692	$obj->{$name} = \%arg;	867	$obj->{$name} = \%arg;
693	} else {	868	} else {
694	warn "object uses attachment '$name' that is not available, postponing.\n";	869	warn "object uses attachment '$name' which is not available, postponing.\n";
695	}	870	}
696		871
697	$obj->{_attachment}{$name} = undef;	872	$obj->{_attachment}{$name} = undef;
698	}	873	}
699		874
…		…
701	if (ref $_[0]) {	876	if (ref $_[0]) {
702	_object_attach @_;	877	_object_attach @_;
703	} else {	878	} else {
704	_attach shift->_attach_registry, @_;	879	_attach shift->_attach_registry, @_;
705	}	880	}
		881	_recalc_want;
706	};	882	};
707		883
708	# all those should be optimised	884	# all those should be optimised
709	sub cf::attachable::detach {	885	sub cf::attachable::detach {
710	my ($obj, $name) = @_;	886	my ($obj, $name) = @_;
…		…
713	delete $obj->{_attachment}{$name};	889	delete $obj->{_attachment}{$name};
714	reattach ($obj);	890	reattach ($obj);
715	} else {	891	} else {
716	Carp::croak "cannot, currently, detach class attachments";	892	Carp::croak "cannot, currently, detach class attachments";
717	}	893	}
		894	_recalc_want;
718	};	895	};
719		896
720	sub cf::attachable::attached {	897	sub cf::attachable::attached {
721	my ($obj, $name) = @_;	898	my ($obj, $name) = @_;
722		899
…		…
737	";	914	";
738	die if $@;	915	die if $@;
739	}	916	}
740		917
741	our $override;	918	our $override;
742	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	919	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
743		920
744	sub override {	921	sub override {
745	$override = 1;	922	$override = 1;
746	@invoke_results = ();	923	@INVOKE_RESULTS = (@_);
747	}	924	}
748		925
749	sub do_invoke {	926	sub do_invoke {
750	my $event = shift;	927	my $event = shift;
751	my $callbacks = shift;	928	my $callbacks = shift;
752		929
753	@invoke_results = ();	930	@INVOKE_RESULTS = ();
754		931
755	local $override;	932	local $override;
756		933
757	for (@$callbacks) {	934	for (@$callbacks) {
758	eval { &{$_->[1]} };	935	eval { &{$_->[1]} };
…		…
775		952
776	Generate an object-specific event with the given arguments.	953	Generate an object-specific event with the given arguments.
777		954
778	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	955	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
779	removed in future versions), and there is no public API to access override	956	removed in future versions), and there is no public API to access override
780	results (if you must, access C<@cf::invoke_results> directly).	957	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
781		958
782	=back	959	=back
783		960
784	=cut	961	=cut
785		962
786	#############################################################################	963	#############################################################################
787	# object support	964	# object support
		965	#
		966
		967	sub _can_merge {
		968	my ($ob1, $ob2) = @_;
		969
		970	local $Storable::canonical = 1;
		971	my $fob1 = Storable::freeze $ob1;
		972	my $fob2 = Storable::freeze $ob2;
		973
		974	$fob1 eq $fob2
		975	}
788		976
789	sub reattach {	977	sub reattach {
790	# basically do the same as instantiate, without calling instantiate	978	# basically do the same as instantiate, without calling instantiate
791	my ($obj) = @_;	979	my ($obj) = @_;
		980
		981	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
792		982
793	my $registry = $obj->registry;	983	my $registry = $obj->registry;
794		984
795	@$registry = ();	985	@$registry = ();
796		986
…		…
835	);	1025	);
836		1026
837	sub object_freezer_save {	1027	sub object_freezer_save {
838	my ($filename, $rdata, $objs) = @_;	1028	my ($filename, $rdata, $objs) = @_;
839		1029
		1030	my $guard = cf::lock_acquire "io";
		1031
840	sync_job {	1032	sync_job {
841	if (length $$rdata) {	1033	if (length $$rdata) {
		1034	utf8::decode (my $decname = $filename);
842	warn sprintf "saving %s (%d,%d)\n",	1035	warn sprintf "saving %s (%d,%d)\n",
843	$filename, length $$rdata, scalar @$objs;	1036	$decname, length $$rdata, scalar @$objs;
844		1037
845	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1038	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
846	chmod SAVE_MODE, $fh;	1039	chmod SAVE_MODE, $fh;
847	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1040	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
848	aio_fsync $fh;	1041	aio_fsync $fh if $cf::USE_FSYNC;
849	close $fh;	1042	close $fh;
850		1043
851	if (@$objs) {	1044	if (@$objs) {
852	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1045	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
853	chmod SAVE_MODE, $fh;	1046	chmod SAVE_MODE, $fh;
854	my $data = Storable::nfreeze { version => 1, objs => $objs };	1047	my $data = Storable::nfreeze { version => 1, objs => $objs };
855	aio_write $fh, 0, (length $data), $data, 0;	1048	aio_write $fh, 0, (length $data), $data, 0;
856	aio_fsync $fh;	1049	aio_fsync $fh if $cf::USE_FSYNC;
857	close $fh;	1050	close $fh;
858	aio_rename "$filename.pst~", "$filename.pst";	1051	aio_rename "$filename.pst~", "$filename.pst";
859	}	1052	}
860	} else {	1053	} else {
861	aio_unlink "$filename.pst";	1054	aio_unlink "$filename.pst";
…		…
867	}	1060	}
868	} else {	1061	} else {
869	aio_unlink $filename;	1062	aio_unlink $filename;
870	aio_unlink "$filename.pst";	1063	aio_unlink "$filename.pst";
871	}	1064	}
872	}	1065	};
		1066
		1067	undef $guard;
873	}	1068	}
874		1069
875	sub object_freezer_as_string {	1070	sub object_freezer_as_string {
876	my ($rdata, $objs) = @_;	1071	my ($rdata, $objs) = @_;
877		1072
…		…
882		1077
883	sub object_thawer_load {	1078	sub object_thawer_load {
884	my ($filename) = @_;	1079	my ($filename) = @_;
885		1080
886	my ($data, $av);	1081	my ($data, $av);
		1082
		1083	my $guard = cf::lock_acquire "io";
887		1084
888	(aio_load $filename, $data) >= 0	1085	(aio_load $filename, $data) >= 0
889	or return;	1086	or return;
890		1087
891	unless (aio_stat "$filename.pst") {	1088	unless (aio_stat "$filename.pst") {
892	(aio_load "$filename.pst", $av) >= 0	1089	(aio_load "$filename.pst", $av) >= 0
893	or return;	1090	or return;
		1091
		1092	undef $guard;
894	$av = eval { (Storable::thaw $av)->{objs} };	1093	$av = eval { (Storable::thaw $av)->{objs} };
895	}	1094	}
896		1095
		1096	utf8::decode (my $decname = $filename);
897	warn sprintf "loading %s (%d)\n",	1097	warn sprintf "loading %s (%d,%d)\n",
898	$filename, length $data, scalar @{$av || []};#d#	1098	$decname, length $data, scalar @{$av || []};
		1099
899	return ($data, $av);	1100	($data, $av)
900	}	1101	}
		1102
		1103	=head2 COMMAND CALLBACKS
		1104
		1105	=over 4
		1106
		1107	=cut
901		1108
902	#############################################################################	1109	#############################################################################
903	# command handling &c	1110	# command handling &c
904		1111
905	=item cf::register_command $name => \&callback($ob,$args);	1112	=item cf::register_command $name => \&callback($ob,$args);
…		…
918	push @{ $COMMAND{$name} }, [$caller, $cb];	1125	push @{ $COMMAND{$name} }, [$caller, $cb];
919	}	1126	}
920		1127
921	=item cf::register_extcmd $name => \&callback($pl,$packet);	1128	=item cf::register_extcmd $name => \&callback($pl,$packet);
922		1129
923	Register a callbackf ro execution when the client sends an extcmd packet.	1130	Register a callback for execution when the client sends an (synchronous)
		1131	extcmd packet. Ext commands will be processed in the order they are
		1132	received by the server, like other user commands. The first argument is
		1133	the logged-in player. Ext commands can only be processed after a player
		1134	has logged in successfully.
924		1135
925	If the callback returns something, it is sent back as if reply was being	1136	If the callback returns something, it is sent back as if reply was being
926	called.	1137	called.
927		1138
		1139	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1140
		1141	Register a callback for execution when the client sends an (asynchronous)
		1142	exticmd packet. Exti commands are processed by the server as soon as they
		1143	are received, i.e. out of order w.r.t. other commands. The first argument
		1144	is a client socket. Exti commands can be received anytime, even before
		1145	log-in.
		1146
		1147	If the callback returns something, it is sent back as if reply was being
		1148	called.
		1149
928	=cut	1150	=cut
929		1151
930	sub register_extcmd {	1152	sub register_extcmd {
931	my ($name, $cb) = @_;	1153	my ($name, $cb) = @_;
932		1154
933	my $caller = caller;
934	#warn "registering extcmd '$name' to '$caller'";
935
936	$EXTCMD{$name} = [$cb, $caller];	1155	$EXTCMD{$name} = $cb;
		1156	}
		1157
		1158	sub register_exticmd {
		1159	my ($name, $cb) = @_;
		1160
		1161	$EXTICMD{$name} = $cb;
937	}	1162	}
938		1163
939	cf::player->attach (	1164	cf::player->attach (
940	on_command => sub {	1165	on_command => sub {
941	my ($pl, $name, $params) = @_;	1166	my ($pl, $name, $params) = @_;
…		…
950	cf::override;	1175	cf::override;
951	},	1176	},
952	on_extcmd => sub {	1177	on_extcmd => sub {
953	my ($pl, $buf) = @_;	1178	my ($pl, $buf) = @_;
954		1179
955	my $msg = eval { from_json $buf };	1180	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
956		1181
957	if (ref $msg) {	1182	if (ref $msg) {
		1183	my ($type, $reply, @payload) =
		1184	"ARRAY" eq ref $msg
		1185	? @$msg
		1186	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1187
		1188	my @reply;
		1189
958	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1190	if (my $cb = $EXTCMD{$type}) {
959	if (my %reply = $cb->[0]->($pl, $msg)) {	1191	@reply = $cb->($pl, @payload);
960	$pl->ext_reply ($msg->{msgid}, %reply);
961	}
962	}	1192	}
		1193
		1194	$pl->ext_reply ($reply, @reply)
		1195	if $reply;
		1196
963	} else {	1197	} else {
964	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
965	}	1199	}
966		1200
967	cf::override;	1201	cf::override;
968	},	1202	},
969	);	1203	);
970		1204
971	sub register {
972	my ($base, $pkg) = @_;
973
974	#TODO
975	}
976
977	sub load_extension {	1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
		1209	for my $path (<$LIBDIR/*.ext>) {
		1210	next unless -r $path;
		1211
		1212	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1213	my $base = $1;
		1214	my $pkg = $1;
		1215	$pkg =~ s/[^[:word:]]/_/g;
		1216	$pkg = "ext::$pkg";
		1217
		1218	open my $fh, "<:utf8", $path
		1219	or die "$path: $!";
		1220
		1221	my $source = do { local $/; <$fh> };
		1222
		1223	my %ext = (
		1224	path => $path,
		1225	base => $base,
		1226	pkg => $pkg,
		1227	);
		1228
		1229	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1230	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1231
		1232	$ext{source} =
		1233	"package $pkg; use strict; use utf8;\n"
		1234	. "#line 1 \"$path\"\n{\n"
		1235	. $source
		1236	. "\n};\n1";
		1237
		1238	$todo{$base} = \%ext;
		1239	}
		1240
		1241	my %done;
		1242	while (%todo) {
		1243	my $progress;
		1244
		1245	while (my ($k, $v) = each %todo) {
		1246	for (split /,\s*/, $v->{meta}{depends}) {
		1247	goto skip
		1248	unless exists $done{$_};
		1249	}
		1250
		1251	warn "... loading '$k' into '$v->{pkg}'\n";
		1252
		1253	unless (eval $v->{source}) {
		1254	my $msg = $@ ? "$v->{path}: $@\n"
		1255	: "$v->{base}: extension inactive.\n";
		1256
		1257	if (exists $v->{meta}{mandatory}) {
		1258	warn $msg;
		1259	warn "mandatory extension failed to load, exiting.\n";
		1260	exit 1;
		1261	}
		1262
		1263	warn $msg;
		1264	}
		1265
		1266	$done{$k} = delete $todo{$k};
		1267	push @EXTS, $v->{pkg};
		1268	$progress = 1;
		1269	}
		1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
		1275	};
		1276	}
		1277
		1278	#############################################################################
		1279
		1280	=back
		1281
		1282	=head2 CORE EXTENSIONS
		1283
		1284	Functions and methods that extend core crossfire objects.
		1285
		1286	=cut
		1287
		1288	package cf::player;
		1289
		1290	use Coro::AIO;
		1291
		1292	=head3 cf::player
		1293
		1294	=over 4
		1295
		1296	=item cf::player::num_playing
		1297
		1298	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1299
		1300	=cut
		1301
		1302	sub num_playing {
		1303	scalar grep
		1304	$_->ob->map
		1305	&& !$_->hidden
		1306	&& !$_->ob->flag (cf::FLAG_WIZ),
		1307	cf::player::list
		1308	}
		1309
		1310	=item cf::player::find $login
		1311
		1312	Returns the given player object, loading it if necessary (might block).
		1313
		1314	=cut
		1315
		1316	sub playerdir($) {
		1317	"$PLAYERDIR/"
		1318	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1319	}
		1320
		1321	sub path($) {
		1322	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1323
		1324	(playerdir $login) . "/playerdata"
		1325	}
		1326
		1327	sub find_active($) {
		1328	$cf::PLAYER{$_[0]}
		1329	and $cf::PLAYER{$_[0]}->active
		1330	and $cf::PLAYER{$_[0]}
		1331	}
		1332
		1333	sub exists($) {
		1334	my ($login) = @_;
		1335
		1336	$cf::PLAYER{$login}
		1337	or cf::sync_job { !aio_stat path $login }
		1338	}
		1339
		1340	sub find($) {
		1341	return $cf::PLAYER{$_[0]} || do {
		1342	my $login = $_[0];
		1343
		1344	my $guard = cf::lock_acquire "user_find:$login";
		1345
		1346	$cf::PLAYER{$_[0]} || do {
		1347	# rename old playerfiles to new ones
		1348	#TODO: remove when no longer required
		1349	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1350	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1351	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1352	aio_unlink +(playerdir $login) . "/$login.pl";
		1353
		1354	my $f = new_from_file cf::object::thawer path $login
		1355	or return;
		1356
		1357	$f->next;
		1358	my $pl = cf::player::load_pl $f
		1359	or return;
		1360	local $cf::PLAYER_LOADING{$login} = $pl;
		1361	$f->resolve_delayed_derefs;
		1362	$cf::PLAYER{$login} = $pl
		1363	}
		1364	}
		1365	}
		1366
		1367	sub save($) {
		1368	my ($pl) = @_;
		1369
		1370	return if $pl->{deny_save};
		1371
		1372	my $path = path $pl;
		1373	my $guard = cf::lock_acquire "user_save:$path";
		1374
		1375	return if $pl->{deny_save};
		1376
		1377	aio_mkdir playerdir $pl, 0770;
		1378	$pl->{last_save} = $cf::RUNTIME;
		1379
		1380	$pl->save_pl ($path);
		1381	cf::cede_to_tick;
		1382	}
		1383
		1384	sub new($) {
		1385	my ($login) = @_;
		1386
		1387	my $self = create;
		1388
		1389	$self->ob->name ($login);
		1390	$self->{deny_save} = 1;
		1391
		1392	$cf::PLAYER{$login} = $self;
		1393
		1394	$self
		1395	}
		1396
		1397	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1398
		1399	=cut
		1400
		1401	sub send_msg {
		1402	my $ns = shift->ns
		1403	or return;
		1404	$ns->send_msg (@_);
		1405	}
		1406
		1407	=item $pl->quit_character
		1408
		1409	Nukes the player without looking back. If logged in, the connection will
		1410	be destroyed. May block for a long time.
		1411
		1412	=cut
		1413
		1414	sub quit_character {
		1415	my ($pl) = @_;
		1416
		1417	my $name = $pl->ob->name;
		1418
		1419	$pl->{deny_save} = 1;
		1420	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1421
		1422	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1423	$pl->deactivate;
		1424	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1425	$pl->ns->destroy if $pl->ns;
		1426
		1427	my $path = playerdir $pl;
		1428	my $temp = "$path~$cf::RUNTIME~deleting~";
		1429	aio_rename $path, $temp;
		1430	delete $cf::PLAYER{$pl->ob->name};
		1431	$pl->destroy;
		1432
		1433	my $prefix = qr<^~\Q$name\E/>;
		1434
		1435	# nuke player maps
		1436	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1437
		1438	IO::AIO::aio_rmtree $temp;
		1439	}
		1440
		1441	=item $pl->kick
		1442
		1443	Kicks a player out of the game. This destroys the connection.
		1444
		1445	=cut
		1446
		1447	sub kick {
		1448	my ($pl, $kicker) = @_;
		1449
		1450	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1451	$pl->killer ("kicked");
		1452	$pl->ns->destroy;
		1453	}
		1454
		1455	=item cf::player::list_logins
		1456
		1457	Returns am arrayref of all valid playernames in the system, can take a
		1458	while and may block, so not sync_job-capable, ever.
		1459
		1460	=cut
		1461
		1462	sub list_logins {
		1463	my $dirs = aio_readdir $PLAYERDIR
		1464	or return [];
		1465
		1466	my @logins;
		1467
		1468	for my $login (@$dirs) {
		1469	my $path = path $login;
		1470
		1471	# a .pst is a dead give-away for a valid player
		1472	unless (-e "$path.pst") {
		1473	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1474	aio_read $fh, 0, 512, my $buf, 0 or next;
		1475	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1476	}
		1477
		1478	utf8::decode $login;
		1479	push @logins, $login;
		1480	}
		1481
		1482	\@logins
		1483	}
		1484
		1485	=item $player->maps
		1486
		1487	Returns an arrayref of map paths that are private for this
		1488	player. May block.
		1489
		1490	=cut
		1491
		1492	sub maps($) {
		1493	my ($pl) = @_;
		1494
		1495	$pl = ref $pl ? $pl->ob->name : $pl;
		1496
		1497	my $files = aio_readdir playerdir $pl
		1498	or return;
		1499
		1500	my @paths;
		1501
		1502	for (@$files) {
		1503	utf8::decode $_;
		1504	next if /\.(?:pl|pst)$/;
		1505	next unless /^$PATH_SEP/o;
		1506
		1507	push @paths, cf::map::normalise "~$pl/$_";
		1508	}
		1509
		1510	\@paths
		1511	}
		1512
		1513	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1514
		1515	Expand crossfire pod fragments into protocol xml.
		1516
		1517	=cut
		1518
		1519	sub expand_cfpod {
		1520	((my $self), (local $_)) = @_;
		1521
		1522	# escape & and <
		1523	s/&/&amp;/g;
		1524	s/(?<![BIUGHT])</&lt;/g;
		1525
		1526	# this is buggy, it needs to properly take care of nested <'s
		1527
		1528	1 while
		1529	# replace B<>, I<>, U<> etc.
		1530	s/B<([^\>]*)>/<b>$1<\/b>/
		1531	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1532	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1533	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1534	# replace G<male|female> tags
		1535	|| s{G<([^>|]*)\|([^>]*)>}{
		1536	$self->gender ? $2 : $1
		1537	}ge
		1538	# replace H<hint text>
		1539	|| s{H<([^\>]*)>}
		1540	{
		1541	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1542	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1543	"")
		1544	[$self->{hintmode}]
		1545	}ge;
		1546
		1547	# create single paragraphs (very hackish)
		1548	s/(?<=\S)\n(?=\w)/ /g;
		1549
		1550	# compress some whitespace
		1551	s/\s+\n/\n/g; # ws line-ends
		1552	s/\n\n+/\n/g; # double lines
		1553	s/^\n+//; # beginning lines
		1554	s/\n+$//; # ending lines
		1555
		1556	$_
		1557	}
		1558
		1559	sub hintmode {
		1560	$_[0]{hintmode} = $_[1] if @_ > 1;
		1561	$_[0]{hintmode}
		1562	}
		1563
		1564	=item $player->ext_reply ($msgid, @msg)
		1565
		1566	Sends an ext reply to the player.
		1567
		1568	=cut
		1569
		1570	sub ext_reply($$@) {
		1571	my ($self, $id, @msg) = @_;
		1572
		1573	$self->ns->ext_reply ($id, @msg)
		1574	}
		1575
		1576	=item $player->ext_msg ($type, @msg)
		1577
		1578	Sends an ext event to the client.
		1579
		1580	=cut
		1581
		1582	sub ext_msg($$@) {
		1583	my ($self, $type, @msg) = @_;
		1584
		1585	$self->ns->ext_msg ($type, @msg);
		1586	}
		1587
		1588	=head3 cf::region
		1589
		1590	=over 4
		1591
		1592	=cut
		1593
		1594	package cf::region;
		1595
		1596	=item cf::region::find_by_path $path
		1597
		1598	Tries to decuce the likely region for a map knowing only its path.
		1599
		1600	=cut
		1601
		1602	sub find_by_path($) {
978	my ($path) = @_;	1603	my ($path) = @_;
979		1604
980	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1605	my ($match, $specificity);
981	my $base = $1;
982	my $pkg = $1;
983	$pkg =~ s/[^[:word:]]/_/g;
984	$pkg = "ext::$pkg";
985		1606
986	warn "loading '$path' into '$pkg'\n";	1607	for my $region (list) {
987		1608	if ($region->{match} && $path =~ $region->{match}) {
988	open my $fh, "<:utf8", $path	1609	($match, $specificity) = ($region, $region->specificity)
989	or die "$path: $!";	1610	if $region->specificity > $specificity;
990		1611	}
991	my $source =
992	"package $pkg; use strict; use utf8;\n"
993	. "#line 1 \"$path\"\n{\n"
994	. (do { local $/; <$fh> })
995	. "\n};\n1";
996
997	eval $source
998	or die $@ ? "$path: $@\n"
999	: "extension disabled.\n";
1000
1001	push @exts, $pkg;
1002	$ext_pkg{$base} = $pkg;
1003
1004	# no strict 'refs';
1005	# @{"$pkg\::ISA"} = ext::;
1006
1007	register $base, $pkg;
1008	}
1009
1010	sub unload_extension {
1011	my ($pkg) = @_;
1012
1013	warn "removing extension $pkg\n";
1014
1015	# remove hooks
1016	#TODO
1017	# for my $idx (0 .. $#PLUGIN_EVENT) {
1018	# delete $hook[$idx]{$pkg};
1019	# }	1612	}
1020		1613
1021	# remove commands	1614	$match
1022	for my $name (keys %COMMAND) {
1023	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1024
1025	if (@cb) {
1026	$COMMAND{$name} = \@cb;
1027	} else {
1028	delete $COMMAND{$name};
1029	}
1030	}
1031
1032	# remove extcmds
1033	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1034	delete $EXTCMD{$name};
1035	}
1036
1037	if (my $cb = $pkg->can ("unload")) {
1038	eval {
1039	$cb->($pkg);
1040	1
1041	} or warn "$pkg unloaded, but with errors: $@";
1042	}
1043
1044	Symbol::delete_package $pkg;
1045	}
1046
1047	sub load_extensions {
1048	for my $ext (<$LIBDIR/*.ext>) {
1049	next unless -r $ext;
1050	eval {
1051	load_extension $ext;
1052	1
1053	} or warn "$ext not loaded: $@";
1054	}
1055	}
1056
1057	#############################################################################
1058	# load/save/clean perl data associated with a map
1059
1060	*cf::mapsupport::on_clean = sub {
1061	my ($map) = @_;
1062
1063	my $path = $map->tmpname;
1064	defined $path or return;
1065
1066	unlink "$path.pst";
1067	};
1068
1069	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1070
1071	#############################################################################
1072	# load/save perl data associated with player->ob objects
1073
1074	sub all_objects(@) {
1075	@_, map all_objects ($_->inv), @_
1076	}
1077
1078	# TODO: compatibility cruft, remove when no longer needed
1079	cf::player->attach (
1080	on_load => sub {
1081	my ($pl, $path) = @_;
1082
1083	for my $o (all_objects $pl->ob) {
1084	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1085	$o->set_ob_key_value ("_perl_data");
1086
1087	%$o = %{ Storable::thaw pack "H*", $value };
1088	}
1089	}
1090	},
1091	);
1092
1093	#############################################################################
1094
1095	=head2 CORE EXTENSIONS
1096
1097	Functions and methods that extend core crossfire objects.
1098
1099	=head3 cf::player
1100
1101	=over 4
1102
1103	=item cf::player::exists $login
1104
1105	Returns true when the given account exists.
1106
1107	=cut
1108
1109	sub cf::player::exists($) {
1110	cf::player::find $_[0]
1111	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1112	}
1113
1114	=item $player->ext_reply ($msgid, $msgtype, %msg)
1115
1116	Sends an ext reply to the player.
1117
1118	=cut
1119
1120	sub cf::player::ext_reply($$$%) {
1121	my ($self, $id, %msg) = @_;
1122
1123	$msg{msgid} = $id;
1124
1125	$self->send ("ext " . to_json \%msg);
1126	}	1615	}
1127		1616
1128	=back	1617	=back
1129
1130		1618
1131	=head3 cf::map	1619	=head3 cf::map
1132		1620
1133	=over 4	1621	=over 4
1134		1622
…		…
1137	package cf::map;	1625	package cf::map;
1138		1626
1139	use Fcntl;	1627	use Fcntl;
1140	use Coro::AIO;	1628	use Coro::AIO;
1141		1629
		1630	use overload
		1631	'""' => \&as_string,
		1632	fallback => 1;
		1633
1142	our $MAX_RESET = 7200;	1634	our $MAX_RESET = 3600;
1143	our $DEFAULT_RESET = 3600;	1635	our $DEFAULT_RESET = 3000;
1144		1636
1145	sub generate_random_map {	1637	sub generate_random_map {
1146	my ($path, $rmp) = @_;	1638	my ($self, $rmp) = @_;
1147
1148	# mit "rum" bekleckern, nicht	1639	# mit "rum" bekleckern, nicht
1149	cf::map::_create_random_map	1640	$self->_create_random_map (
1150	$path,
1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1641	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1642	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1643	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154	$rmp->{exit_on_final_map},	1644	$rmp->{exit_on_final_map},
1155	$rmp->{xsize}, $rmp->{ysize},	1645	$rmp->{xsize}, $rmp->{ysize},
1156	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1646	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1647	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1158	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1648	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1159	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1649	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1160	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1650	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1161	(cf::region::find $rmp->{region})	1651	(cf::region::find $rmp->{region}), $rmp->{custom}
		1652	)
		1653	}
		1654
		1655	=item cf::map->register ($regex, $prio)
		1656
		1657	Register a handler for the map path matching the given regex at the
		1658	givne priority (higher is better, built-in handlers have priority 0, the
		1659	default).
		1660
		1661	=cut
		1662
		1663	sub register {
		1664	my (undef, $regex, $prio) = @_;
		1665	my $pkg = caller;
		1666
		1667	no strict;
		1668	push @{"$pkg\::ISA"}, __PACKAGE__;
		1669
		1670	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1671	}
		1672
		1673	# also paths starting with '/'
		1674	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1675
		1676	sub thawer_merge {
		1677	my ($self, $merge) = @_;
		1678
		1679	# we have to keep some variables in memory intact
		1680	local $self->{path};
		1681	local $self->{load_path};
		1682
		1683	$self->SUPER::thawer_merge ($merge);
		1684	}
		1685
		1686	sub normalise {
		1687	my ($path, $base) = @_;
		1688
		1689	$path = "$path"; # make sure its a string
		1690
		1691	$path =~ s/\.map$//;
		1692
		1693	# map plan:
		1694	#
		1695	# /! non-realised random map exit (special hack!)
		1696	# {... are special paths that are not being touched
		1697	# ?xxx/... are special absolute paths
		1698	# ?random/... random maps
		1699	# /... normal maps
		1700	# ~user/... per-player map of a specific user
		1701
		1702	$path =~ s/$PATH_SEP/\//go;
		1703
		1704	# treat it as relative path if it starts with
		1705	# something that looks reasonable
		1706	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1707	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1708
		1709	$base =~ s{[^/]+/?$}{};
		1710	$path = "$base/$path";
		1711	}
		1712
		1713	for ($path) {
		1714	redo if s{//}{/};
		1715	redo if s{/\.?/}{/};
		1716	redo if s{/[^/]+/\.\./}{/};
		1717	}
		1718
		1719	$path
		1720	}
		1721
		1722	sub new_from_path {
		1723	my (undef, $path, $base) = @_;
		1724
		1725	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1726
		1727	$path = normalise $path, $base;
		1728
		1729	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1730	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1731	my $self = bless cf::map::new, $pkg;
		1732	$self->{path} = $path; $self->path ($path);
		1733	$self->init; # pass $1 etc.
		1734	return $self;
		1735	}
		1736	}
		1737
		1738	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1739	()
		1740	}
		1741
		1742	sub init {
		1743	my ($self) = @_;
		1744
		1745	$self
		1746	}
		1747
		1748	sub as_string {
		1749	my ($self) = @_;
		1750
		1751	"$self->{path}"
		1752	}
		1753
		1754	# the displayed name, this is a one way mapping
		1755	sub visible_name {
		1756	&as_string
		1757	}
		1758
		1759	# the original (read-only) location
		1760	sub load_path {
		1761	my ($self) = @_;
		1762
		1763	"$MAPDIR/$self->{path}.map"
		1764	}
		1765
		1766	# the temporary/swap location
		1767	sub save_path {
		1768	my ($self) = @_;
		1769
		1770	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1771	"$TMPDIR/$path.map"
		1772	}
		1773
		1774	# the unique path, undef == no special unique path
		1775	sub uniq_path {
		1776	my ($self) = @_;
		1777
		1778	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1779	"$UNIQUEDIR/$path"
1162	}	1780	}
1163		1781
1164	# and all this just because we cannot iterate over	1782	# and all this just because we cannot iterate over
1165	# all maps in C++...	1783	# all maps in C++...
1166	sub change_all_map_light {	1784	sub change_all_map_light {
…		…
1168		1786
1169	$_->change_map_light ($change)	1787	$_->change_map_light ($change)
1170	for grep $_->outdoor, values %cf::MAP;	1788	for grep $_->outdoor, values %cf::MAP;
1171	}	1789	}
1172		1790
		1791	sub decay_objects {
		1792	my ($self) = @_;
		1793
		1794	return if $self->{deny_reset};
		1795
		1796	$self->do_decay_objects;
		1797	}
		1798
		1799	sub unlink_save {
		1800	my ($self) = @_;
		1801
		1802	utf8::encode (my $save = $self->save_path);
		1803	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1804	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1805	}
		1806
1173	sub try_load_header($) {	1807	sub load_header_from($) {
1174	my ($path) = @_;	1808	my ($self, $path) = @_;
1175		1809
1176	utf8::encode $path;	1810	utf8::encode $path;
1177	aio_open $path, O_RDONLY, 0	1811	my $f = new_from_file cf::object::thawer $path
1178	or return;	1812	or return;
1179		1813
1180	my $map = cf::map::new	1814	$self->_load_header ($f)
1181	or return;	1815	or return;
1182		1816
1183	$map->load_header ($path)	1817	local $MAP_LOADING{$self->{path}} = $self;
		1818	$f->resolve_delayed_derefs;
		1819
		1820	$self->{load_path} = $path;
		1821
		1822	1
		1823	}
		1824
		1825	sub load_header_orig {
		1826	my ($self) = @_;
		1827
		1828	$self->load_header_from ($self->load_path)
		1829	}
		1830
		1831	sub load_header_temp {
		1832	my ($self) = @_;
		1833
		1834	$self->load_header_from ($self->save_path)
		1835	}
		1836
		1837	sub prepare_temp {
		1838	my ($self) = @_;
		1839
		1840	$self->last_access ((delete $self->{last_access})
		1841	|| $cf::RUNTIME); #d#
		1842	# safety
		1843	$self->{instantiate_time} = $cf::RUNTIME
		1844	if $self->{instantiate_time} > $cf::RUNTIME;
		1845	}
		1846
		1847	sub prepare_orig {
		1848	my ($self) = @_;
		1849
		1850	$self->{load_original} = 1;
		1851	$self->{instantiate_time} = $cf::RUNTIME;
		1852	$self->last_access ($cf::RUNTIME);
		1853	$self->instantiate;
		1854	}
		1855
		1856	sub load_header {
		1857	my ($self) = @_;
		1858
		1859	if ($self->load_header_temp) {
		1860	$self->prepare_temp;
		1861	} else {
		1862	$self->load_header_orig
1184	or return;	1863	or return;
		1864	$self->prepare_orig;
		1865	}
1185		1866
1186	$map->{load_path} = $path;	1867	$self->{deny_reset} = 1
		1868	if $self->no_reset;
1187		1869
1188	$map	1870	$self->default_region (cf::region::find_by_path $self->{path})
1189	}	1871	unless $self->default_region;
1190		1872
		1873	1
		1874	}
		1875
1191	sub find_map;	1876	sub find;
1192	sub find_map {	1877	sub find {
1193	my ($path, $origin) = @_;	1878	my ($path, $origin) = @_;
1194		1879
1195	#warn "find_map<$path,$origin>\n";#d#
1196
1197	$path = new cf::path $path, $origin && $origin->path;	1880	$path = normalise $path, $origin && $origin->path;
1198	my $key = $path->as_string;
1199		1881
		1882	cf::lock_wait "map_data:$path";#d#remove
1200	cf::lock_wait "map_find:$key";	1883	cf::lock_wait "map_find:$path";
1201		1884
1202	$cf::MAP{$key} || do {	1885	$cf::MAP{$path} || do {
1203	my $guard = cf::lock_acquire "map_find:$key";	1886	my $guard1 = cf::lock_acquire "map_find:$path";
		1887	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1204		1888
1205	# do it the slow way	1889	my $map = new_from_path cf::map $path
1206	my $map = try_load_header $path->save_path;
1207
1208	if ($map) {
1209	# safety
1210	$map->{instantiate_time} = $cf::RUNTIME
1211	if $map->{instantiate_time} > $cf::RUNTIME;
1212	} else {
1213	if (my $rmp = $path->random_map_params) {
1214	$map = generate_random_map $key, $rmp;
1215	} else {
1216	$map = try_load_header $path->load_path;
1217	}
1218
1219	$map or return;	1890	or return;
1220		1891
1221	$map->{load_original} = 1;
1222	$map->{instantiate_time} = $cf::RUNTIME;
1223	$map->instantiate;
1224
1225	# per-player maps become, after loading, normal maps
1226	$map->per_player (0) if $path->{user_rel};
1227	}
1228
1229	$map->path ($key);
1230	$map->{path} = $path;
1231	$map->{last_save} = $cf::RUNTIME;	1892	$map->{last_save} = $cf::RUNTIME;
1232	$map->last_access ($cf::RUNTIME);
1233		1893
1234	if ($map->should_reset) {	1894	$map->load_header
		1895	or return;
		1896
		1897	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1898	# doing this can freeze the server in a sync job, obviously
		1899	#$cf::WAIT_FOR_TICK->wait;
		1900	undef $guard1;
		1901	undef $guard2;
1235	$map->reset;	1902	$map->reset;
1236	undef $guard;	1903	return find $path;
1237	$map = find_map $path
1238	or return;
1239	}	1904	}
1240		1905
1241	$cf::MAP{$key} = $map	1906	$cf::MAP{$path} = $map
1242	}	1907	}
1243	}	1908	}
		1909
		1910	sub pre_load { }
		1911	sub post_load { }
1244		1912
1245	sub load {	1913	sub load {
1246	my ($self) = @_;	1914	my ($self) = @_;
1247		1915
		1916	local $self->{deny_reset} = 1; # loading can take a long time
		1917
1248	my $path = $self->{path};	1918	my $path = $self->{path};
		1919
		1920	{
1249	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1921	my $guard = cf::lock_acquire "map_data:$path";
1250		1922
		1923	return unless $self->valid;
1251	return if $self->in_memory != cf::MAP_SWAPPED;	1924	return unless $self->in_memory == cf::MAP_SWAPPED;
1252		1925
1253	$self->in_memory (cf::MAP_LOADING);	1926	$self->in_memory (cf::MAP_LOADING);
1254		1927
1255	$self->alloc;	1928	$self->alloc;
1256	$self->load_objects ($self->{load_path}, 1)	1929
		1930	$self->pre_load;
		1931	cf::cede_to_tick;
		1932
		1933	my $f = new_from_file cf::object::thawer $self->{load_path};
		1934	$f->skip_block;
		1935	$self->_load_objects ($f)
1257	or return;	1936	or return;
1258		1937
1259	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1938	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1260	if delete $self->{load_original};	1939	if delete $self->{load_original};
1261		1940
1262	if (my $uniq = $path->uniq_path) {	1941	if (my $uniq = $self->uniq_path) {
1263	utf8::encode $uniq;	1942	utf8::encode $uniq;
1264	if (aio_open $uniq, O_RDONLY, 0) {	1943	unless (aio_stat $uniq) {
		1944	if (my $f = new_from_file cf::object::thawer $uniq) {
1265	$self->clear_unique_items;	1945	$self->clear_unique_items;
1266	$self->load_objects ($uniq, 0);	1946	$self->_load_objects ($f);
		1947	$f->resolve_delayed_derefs;
		1948	}
1267	}	1949	}
1268	}	1950	}
1269		1951
		1952	$f->resolve_delayed_derefs;
		1953
		1954	cf::cede_to_tick;
1270	# now do the right thing for maps	1955	# now do the right thing for maps
1271	$self->link_multipart_objects;	1956	$self->link_multipart_objects;
1272
1273	if ($self->{path}->is_style_map) {
1274	$self->{deny_save} = 1;
1275	$self->{deny_reset} = 1;
1276	} else {
1277	$self->fix_auto_apply;
1278	$self->decay_objects;
1279	$self->update_buttons;
1280	$self->set_darkness_map;
1281	$self->difficulty ($self->estimate_difficulty)	1957	$self->difficulty ($self->estimate_difficulty)
1282	unless $self->difficulty;	1958	unless $self->difficulty;
		1959	cf::cede_to_tick;
		1960
		1961	unless ($self->{deny_activate}) {
		1962	$self->decay_objects;
		1963	$self->fix_auto_apply;
		1964	$self->update_buttons;
		1965	cf::cede_to_tick;
		1966	$self->set_darkness_map;
		1967	cf::cede_to_tick;
1283	$self->activate;	1968	$self->activate;
1284	}	1969	}
1285		1970
		1971	$self->{last_save} = $cf::RUNTIME;
		1972	$self->last_access ($cf::RUNTIME);
		1973
1286	$self->in_memory (cf::MAP_IN_MEMORY);	1974	$self->in_memory (cf::MAP_IN_MEMORY);
1287	}	1975	}
1288		1976
1289	sub load_map_sync {	1977	$self->post_load;
		1978	}
		1979
		1980	sub customise_for {
		1981	my ($self, $ob) = @_;
		1982
		1983	return find "~" . $ob->name . "/" . $self->{path}
		1984	if $self->per_player;
		1985
		1986	# return find "?party/" . $ob->name . "/" . $self->{path}
		1987	# if $self->per_party;
		1988
		1989	$self
		1990	}
		1991
		1992	# find and load all maps in the 3x3 area around a map
		1993	sub load_neighbours {
		1994	my ($map) = @_;
		1995
		1996	my @neigh; # diagonal neighbours
		1997
		1998	for (0 .. 3) {
		1999	my $neigh = $map->tile_path ($_)
		2000	or next;
		2001	$neigh = find $neigh, $map
		2002	or next;
		2003	$neigh->load;
		2004
		2005	push @neigh,
		2006	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2007	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2008	}
		2009
		2010	for (grep defined $_->[0], @neigh) {
		2011	my ($path, $origin) = @$_;
		2012	my $neigh = find $path, $origin
		2013	or next;
		2014	$neigh->load;
		2015	}
		2016	}
		2017
		2018	sub find_sync {
1290	my ($path, $origin) = @_;	2019	my ($path, $origin) = @_;
1291		2020
1292	#warn "load_map_sync<$path, $origin>\n";#d#	2021	cf::sync_job { find $path, $origin }
		2022	}
1293		2023
1294	cf::sync_job {	2024	sub do_load_sync {
1295	my $map = cf::map::find_map $path, $origin	2025	my ($map) = @_;
1296	or return;	2026
1297	$map->load;	2027	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1298	$map	2028	if $Coro::current == $Coro::main;
		2029
		2030	cf::sync_job { $map->load };
		2031	}
		2032
		2033	our %MAP_PREFETCH;
		2034	our $MAP_PREFETCHER = undef;
		2035
		2036	sub find_async {
		2037	my ($path, $origin, $load) = @_;
		2038
		2039	$path = normalise $path, $origin && $origin->{path};
		2040
		2041	if (my $map = $cf::MAP{$path}) {
		2042	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2043	}
		2044
		2045	$MAP_PREFETCH{$path} |= $load;
		2046
		2047	$MAP_PREFETCHER ||= cf::async {
		2048	while (%MAP_PREFETCH) {
		2049	while (my ($k, $v) = each %MAP_PREFETCH) {
		2050	if (my $map = find $k) {
		2051	$map->load if $v;
		2052	}
		2053
		2054	delete $MAP_PREFETCH{$k};
		2055	}
		2056	}
		2057	undef $MAP_PREFETCHER;
1299	}	2058	};
		2059	$MAP_PREFETCHER->prio (6);
		2060
		2061	()
1300	}	2062	}
1301		2063
1302	sub save {	2064	sub save {
1303	my ($self) = @_;	2065	my ($self) = @_;
1304		2066
		2067	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2068
1305	$self->{last_save} = $cf::RUNTIME;	2069	$self->{last_save} = $cf::RUNTIME;
1306		2070
1307	return unless $self->dirty;	2071	return unless $self->dirty;
1308		2072
1309	my $save = $self->{path}->save_path; utf8::encode $save;	2073	my $save = $self->save_path; utf8::encode $save;
1310	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2074	my $uniq = $self->uniq_path; utf8::encode $uniq;
1311		2075
1312	$self->{load_path} = $save;	2076	$self->{load_path} = $save;
1313		2077
1314	return if $self->{deny_save};	2078	return if $self->{deny_save};
1315		2079
		2080	local $self->{last_access} = $self->last_access;#d#
		2081
		2082	cf::async {
		2083	$_->contr->save for $self->players;
		2084	};
		2085
1316	if ($uniq) {	2086	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2087	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);	2088	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {	2089	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2090	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}	2091	}
1322	}	2092	}
1323		2093
1324	sub swap_out {	2094	sub swap_out {
1325	my ($self) = @_;	2095	my ($self) = @_;
1326		2096
1327	# save first because save cedes	2097	# save first because save cedes
1328	$self->save;	2098	$self->save;
		2099
		2100	my $lock = cf::lock_acquire "map_data:$self->{path}";
1329		2101
1330	return if $self->players;	2102	return if $self->players;
1331	return if $self->in_memory != cf::MAP_IN_MEMORY;	2103	return if $self->in_memory != cf::MAP_IN_MEMORY;
1332	return if $self->{deny_save};	2104	return if $self->{deny_save};
1333		2105
		2106	$self->in_memory (cf::MAP_SWAPPED);
		2107
		2108	$self->deactivate;
		2109	$_->clear_links_to ($self) for values %cf::MAP;
1334	$self->clear;	2110	$self->clear;
1335	$self->in_memory (cf::MAP_SWAPPED);
1336	}	2111	}
1337		2112
1338	sub reset_at {	2113	sub reset_at {
1339	my ($self) = @_;	2114	my ($self) = @_;
1340		2115
1341	# TODO: safety, remove and allow resettable per-player maps	2116	# TODO: safety, remove and allow resettable per-player maps
1342	return 1e99 if $self->{path}{user_rel};
1343	return 1e99 if $self->{deny_reset};	2117	return 1e99 if $self->{deny_reset};
1344		2118
1345	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2119	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1346	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2120	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1347		2121
…		…
1352	my ($self) = @_;	2126	my ($self) = @_;
1353		2127
1354	$self->reset_at <= $cf::RUNTIME	2128	$self->reset_at <= $cf::RUNTIME
1355	}	2129	}
1356		2130
1357	sub unlink_save {
1358	my ($self) = @_;
1359
1360	utf8::encode (my $save = $self->{path}->save_path);
1361	aioreq_pri 3; IO::AIO::aio_unlink $save;
1362	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1363	}
1364
1365	sub rename {
1366	my ($self, $new_path) = @_;
1367
1368	$self->unlink_save;
1369
1370	delete $cf::MAP{$self->path};
1371	$self->{path} = new cf::path $new_path;
1372	$self->path ($self->{path}->as_string);
1373	$cf::MAP{$self->path} = $self;
1374
1375	$self->save;
1376	}
1377
1378	sub reset {	2131	sub reset {
1379	my ($self) = @_;	2132	my ($self) = @_;
1380		2133
		2134	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2135
1381	return if $self->players;	2136	return if $self->players;
1382	return if $self->{path}{user_rel};#d#
1383		2137
1384	warn "resetting map ", $self->path;#d#	2138	warn "resetting map ", $self->path;
		2139
		2140	$self->in_memory (cf::MAP_SWAPPED);
		2141
		2142	# need to save uniques path
		2143	unless ($self->{deny_save}) {
		2144	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2145
		2146	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2147	if $uniq;
		2148	}
1385		2149
1386	delete $cf::MAP{$self->path};	2150	delete $cf::MAP{$self->path};
1387		2151
		2152	$self->deactivate;
1388	$_->clear_links_to ($self) for values %cf::MAP;	2153	$_->clear_links_to ($self) for values %cf::MAP;
		2154	$self->clear;
1389		2155
1390	$self->unlink_save;	2156	$self->unlink_save;
1391	$self->destroy;	2157	$self->destroy;
1392	}	2158	}
1393		2159
1394	my $nuke_counter = "aaaa";	2160	my $nuke_counter = "aaaa";
1395		2161
1396	sub nuke {	2162	sub nuke {
1397	my ($self) = @_;	2163	my ($self) = @_;
1398		2164
		2165	{
		2166	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2167
		2168	delete $cf::MAP{$self->path};
		2169
		2170	$self->unlink_save;
		2171
		2172	bless $self, "cf::map";
		2173	delete $self->{deny_reset};
1399	$self->{deny_save} = 1;	2174	$self->{deny_save} = 1;
1400	$self->reset_timeout (1);	2175	$self->reset_timeout (1);
1401	$self->rename ("{nuke}/" . ($nuke_counter++));	2176	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2177
		2178	$cf::MAP{$self->path} = $self;
		2179	}
		2180
1402	$self->reset; # polite request, might not happen	2181	$self->reset; # polite request, might not happen
1403	}	2182	}
1404		2183
1405	sub customise_for {	2184	=item $maps = cf::map::tmp_maps
1406	my ($map, $ob) = @_;
1407		2185
1408	if ($map->per_player) {	2186	Returns an arrayref with all map paths of currently instantiated and saved
1409	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2187	maps. May block.
		2188
		2189	=cut
		2190
		2191	sub tmp_maps() {
1410	}	2192	[
1411		2193	map {
1412	$map	2194	utf8::decode $_;
		2195	/\.map$/
		2196	? normalise $_
		2197	: ()
		2198	} @{ aio_readdir $TMPDIR or [] }
		2199	]
1413	}	2200	}
1414		2201
1415	sub emergency_save {	2202	=item $maps = cf::map::random_maps
1416	local $cf::FREEZE = 1;
1417		2203
1418	warn "enter emergency map save\n";	2204	Returns an arrayref with all map paths of currently instantiated and saved
		2205	random maps. May block.
1419		2206
1420	cf::sync_job {	2207	=cut
1421	warn "begin emergency map save\n";
1422	$_->save for values %cf::MAP;
1423	};
1424		2208
1425	warn "end emergency map save\n";	2209	sub random_maps() {
		2210	[
		2211	map {
		2212	utf8::decode $_;
		2213	/\.map$/
		2214	? normalise "?random/$_"
		2215	: ()
		2216	} @{ aio_readdir $RANDOMDIR or [] }
		2217	]
		2218	}
		2219
		2220	=item cf::map::unique_maps
		2221
		2222	Returns an arrayref of paths of all shared maps that have
		2223	instantiated unique items. May block.
		2224
		2225	=cut
		2226
		2227	sub unique_maps() {
		2228	[
		2229	map {
		2230	utf8::decode $_;
		2231	/\.map$/
		2232	? normalise $_
		2233	: ()
		2234	} @{ aio_readdir $UNIQUEDIR or [] }
		2235	]
1426	}	2236	}
1427		2237
1428	package cf;	2238	package cf;
1429		2239
1430	=back	2240	=back
1431		2241
		2242	=head3 cf::object
		2243
		2244	=cut
		2245
		2246	package cf::object;
		2247
		2248	=over 4
		2249
		2250	=item $ob->inv_recursive
		2251
		2252	Returns the inventory of the object _and_ their inventories, recursively.
		2253
		2254	=cut
		2255
		2256	sub inv_recursive_;
		2257	sub inv_recursive_ {
		2258	map { $_, inv_recursive_ $_->inv } @_
		2259	}
		2260
		2261	sub inv_recursive {
		2262	inv_recursive_ inv $_[0]
		2263	}
		2264
		2265	=item $ref = $ob->ref
		2266
		2267	creates and returns a persistent reference to an objetc that can be stored as a string.
		2268
		2269	=item $ob = cf::object::deref ($refstring)
		2270
		2271	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2272	even if the object actually exists. May block.
		2273
		2274	=cut
		2275
		2276	sub deref {
		2277	my ($ref) = @_;
		2278
		2279	# temporary compatibility#TODO#remove
		2280	$ref =~ s{^<}{player/<};
		2281
		2282	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2283	my ($uuid, $name) = ($1, $2);
		2284	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2285	or return;
		2286	$pl->ob->uuid eq $uuid
		2287	or return;
		2288
		2289	$pl->ob
		2290	} else {
		2291	warn "$ref: cannot resolve object reference\n";
		2292	undef
		2293	}
		2294	}
		2295
		2296	package cf;
		2297
		2298	=back
1432		2299
1433	=head3 cf::object::player	2300	=head3 cf::object::player
1434		2301
1435	=over 4	2302	=over 4
1436		2303
…		…
1450		2317
1451	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2318	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1452		2319
1453	if ($self->{record_replies}) {	2320	if ($self->{record_replies}) {
1454	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2321	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2322
1455	} else {	2323	} else {
		2324	my $pl = $self->contr;
		2325
		2326	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2327	my $dialog = $pl->{npc_dialog};
		2328	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2329
		2330	} else {
1456	$msg = $npc->name . " says: $msg" if $npc;	2331	$msg = $npc->name . " says: $msg" if $npc;
1457	$self->message ($msg, $flags);	2332	$self->message ($msg, $flags);
		2333	}
1458	}	2334	}
		2335	}
		2336
		2337	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2338
		2339	=cut
		2340
		2341	sub cf::object::send_msg {
		2342	my $pl = shift->contr
		2343	or return;
		2344	$pl->send_msg (@_);
1459	}	2345	}
1460		2346
1461	=item $player_object->may ("access")	2347	=item $player_object->may ("access")
1462		2348
1463	Returns wether the given player is authorized to access resource "access"	2349	Returns wether the given player is authorized to access resource "access"
…		…
1476		2362
1477	=item $player_object->enter_link	2363	=item $player_object->enter_link
1478		2364
1479	Freezes the player and moves him/her to a special map (C<{link}>).	2365	Freezes the player and moves him/her to a special map (C<{link}>).
1480		2366
1481	The player should be reaosnably safe there for short amounts of time. You	2367	The player should be reasonably safe there for short amounts of time. You
1482	I<MUST> call C<leave_link> as soon as possible, though.	2368	I<MUST> call C<leave_link> as soon as possible, though.
1483		2369
		2370	Will never block.
		2371
1484	=item $player_object->leave_link ($map, $x, $y)	2372	=item $player_object->leave_link ($map, $x, $y)
1485		2373
1486	Moves the player out of the specila link map onto the given map. If the	2374	Moves the player out of the special C<{link}> map onto the specified
1487	map is not valid (or omitted), the player will be moved back to the	2375	map. If the map is not valid (or omitted), the player will be moved back
1488	location he/she was before the call to C<enter_link>, or, if that fails,	2376	to the location he/she was before the call to C<enter_link>, or, if that
1489	to the emergency map position.	2377	fails, to the emergency map position.
1490		2378
1491	Might block.	2379	Might block.
1492		2380
1493	=cut	2381	=cut
		2382
		2383	sub link_map {
		2384	unless ($LINK_MAP) {
		2385	$LINK_MAP = cf::map::find "{link}"
		2386	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2387	$LINK_MAP->load;
		2388	}
		2389
		2390	$LINK_MAP
		2391	}
1494		2392
1495	sub cf::object::player::enter_link {	2393	sub cf::object::player::enter_link {
1496	my ($self) = @_;	2394	my ($self) = @_;
1497		2395
1498	$self->deactivate_recursive;	2396	$self->deactivate_recursive;
1499		2397
1500	return if $self->map == $LINK_MAP;	2398	return if UNIVERSAL::isa $self->map, "ext::map_link";
1501		2399
1502	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2400	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1503	if $self->map;	2401	if $self->map && $self->map->{path} ne "{link}";
1504		2402
1505	$self->enter_map ($LINK_MAP, 20, 20);	2403	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1506	}	2404	}
1507		2405
1508	sub cf::object::player::leave_link {	2406	sub cf::object::player::leave_link {
1509	my ($self, $map, $x, $y) = @_;	2407	my ($self, $map, $x, $y) = @_;
		2408
		2409	return unless $self->contr->active;
1510		2410
1511	my $link_pos = delete $self->{_link_pos};	2411	my $link_pos = delete $self->{_link_pos};
1512		2412
1513	unless ($map) {	2413	unless ($map) {
1514	# restore original map position	2414	# restore original map position
1515	($map, $x, $y) = @{ $link_pos || [] };	2415	($map, $x, $y) = @{ $link_pos || [] };
1516	$map = cf::map::find_map $map;	2416	$map = cf::map::find $map;
1517		2417
1518	unless ($map) {	2418	unless ($map) {
1519	($map, $x, $y) = @$EMERGENCY_POSITION;	2419	($map, $x, $y) = @$EMERGENCY_POSITION;
1520	$map = cf::map::find_map $map	2420	$map = cf::map::find $map
1521	or die "FATAL: cannot load emergency map\n";	2421	or die "FATAL: cannot load emergency map\n";
1522	}	2422	}
1523	}	2423	}
1524		2424
1525	($x, $y) = (-1, -1)	2425	($x, $y) = (-1, -1)
…		…
1528	# use -1 or undef as default coordinates, not 0, 0	2428	# use -1 or undef as default coordinates, not 0, 0
1529	($x, $y) = ($map->enter_x, $map->enter_y)	2429	($x, $y) = ($map->enter_x, $map->enter_y)
1530	if $x <=0 && $y <= 0;	2430	if $x <=0 && $y <= 0;
1531		2431
1532	$map->load;	2432	$map->load;
		2433	$map->load_neighbours;
1533		2434
		2435	return unless $self->contr->active;
1534	$self->activate_recursive;	2436	$self->activate_recursive;
		2437
		2438	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1535	$self->enter_map ($map, $x, $y);	2439	$self->enter_map ($map, $x, $y);
1536	}	2440	}
1537		2441
1538	cf::player->attach (	2442	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1539	on_logout => sub {
1540	my ($pl) = @_;
1541		2443
1542	# abort map switching before logout	2444	Moves the player to the given map-path and coordinates by first freezing
1543	if ($pl->ob->{_link_pos}) {	2445	her, loading and preparing them map, calling the provided $check callback
1544	cf::sync_job {	2446	that has to return the map if sucecssful, and then unfreezes the player on
1545	$pl->ob->leave_link	2447	the new (success) or old (failed) map position. In either case, $done will
1546	};	2448	be called at the end of this process.
1547	}
1548	},
1549	on_login => sub {
1550	my ($pl) = @_;
1551		2449
1552	# try to abort aborted map switching on player login :)
1553	# should happen only on crashes
1554	if ($pl->ob->{_link_pos}) {
1555	$pl->ob->enter_link;
1556	cf::async {
1557	# we need this sleep as the login has a concurrent enter_exit running
1558	# and this sleep increases chances of the player not ending up in scorn
1559	Coro::Timer::sleep 1;
1560	$pl->ob->leave_link;
1561	};
1562	}
1563	},
1564	);
1565
1566	=item $player_object->goto_map ($path, $x, $y)
1567
1568	=cut	2450	=cut
1569		2451
		2452	our $GOTOGEN;
		2453
1570	sub cf::object::player::goto_map {	2454	sub cf::object::player::goto {
1571	my ($self, $path, $x, $y) = @_;	2455	my ($self, $path, $x, $y, $check, $done) = @_;
		2456
		2457	# do generation counting so two concurrent goto's will be executed in-order
		2458	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1572		2459
1573	$self->enter_link;	2460	$self->enter_link;
1574		2461
1575	(cf::async {	2462	(async {
1576	$path = new cf::path $path;	2463	# *tag paths override both path and x|y
		2464	if ($path =~ /^\*(.*)$/) {
		2465	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2466	my $ob = $obs[rand @obs];
1577		2467
		2468	# see if we actually can go there
		2469	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2470	$ob = $obs[rand @obs];
		2471	}
		2472	# else put him there anyways for now #d#
		2473
		2474	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2475	}
		2476	}
		2477
		2478	my $map = eval {
1578	my $map = cf::map::find_map $path->as_string;	2479	my $map = cf::map::find $path;
		2480
		2481	if ($map) {
1579	$map = $map->customise_for ($self) if $map;	2482	$map = $map->customise_for ($self);
1580		2483	$map = $check->($map) if $check && $map;
1581	# warn "entering ", $map->path, " at ($x, $y)\n"	2484	} else {
1582	# if $map;
1583
1584	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2485	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2486	}
1585		2487
		2488	$map
		2489	};
		2490
		2491	if ($@) {
		2492	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2493	LOG llevError | logBacktrace, Carp::longmess $@;
		2494	}
		2495
		2496	if ($gen == $self->{_goto_generation}) {
		2497	delete $self->{_goto_generation};
1586	$self->leave_link ($map, $x, $y);	2498	$self->leave_link ($map, $x, $y);
		2499	}
		2500
		2501	$done->() if $done;
1587	})->prio (1);	2502	})->prio (1);
1588	}	2503	}
1589		2504
1590	=item $player_object->enter_exit ($exit_object)	2505	=item $player_object->enter_exit ($exit_object)
1591		2506
…		…
1593		2508
1594	sub parse_random_map_params {	2509	sub parse_random_map_params {
1595	my ($spec) = @_;	2510	my ($spec) = @_;
1596		2511
1597	my $rmp = { # defaults	2512	my $rmp = { # defaults
1598	xsize => 10,	2513	xsize => (cf::rndm 15, 40),
1599	ysize => 10,	2514	ysize => (cf::rndm 15, 40),
		2515	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2516	#layout => string,
1600	};	2517	};
1601		2518
1602	for (split /\n/, $spec) {	2519	for (split /\n/, $spec) {
1603	my ($k, $v) = split /\s+/, $_, 2;	2520	my ($k, $v) = split /\s+/, $_, 2;
1604		2521
…		…
1608	$rmp	2525	$rmp
1609	}	2526	}
1610		2527
1611	sub prepare_random_map {	2528	sub prepare_random_map {
1612	my ($exit) = @_;	2529	my ($exit) = @_;
		2530
		2531	my $guard = cf::lock_acquire "exit_prepare:$exit";
1613		2532
1614	# all this does is basically replace the /! path by	2533	# all this does is basically replace the /! path by
1615	# a new random map path (?random/...) with a seed	2534	# a new random map path (?random/...) with a seed
1616	# that depends on the exit object	2535	# that depends on the exit object
1617		2536
1618	my $rmp = parse_random_map_params $exit->msg;	2537	my $rmp = parse_random_map_params $exit->msg;
1619		2538
1620	if ($exit->map) {	2539	if ($exit->map) {
1621	$rmp->{region} = $exit->map->region_name;	2540	$rmp->{region} = $exit->region->name;
1622	$rmp->{origin_map} = $exit->map->path;	2541	$rmp->{origin_map} = $exit->map->path;
1623	$rmp->{origin_x} = $exit->x;	2542	$rmp->{origin_x} = $exit->x;
1624	$rmp->{origin_y} = $exit->y;	2543	$rmp->{origin_y} = $exit->y;
1625	}	2544	}
1626		2545
1627	$rmp->{random_seed} ||= $exit->random_seed;	2546	$rmp->{random_seed} ||= $exit->random_seed;
1628		2547
1629	my $data = cf::to_json $rmp;	2548	my $data = cf::to_json $rmp;
1630	my $md5 = Digest::MD5::md5_hex $data;	2549	my $md5 = Digest::MD5::md5_hex $data;
		2550	my $meta = "$RANDOMDIR/$md5.meta";
1631		2551
1632	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2552	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1633	aio_write $fh, 0, (length $data), $data, 0;	2553	aio_write $fh, 0, (length $data), $data, 0;
		2554	undef $fh;
		2555	aio_rename "$meta~", $meta;
1634		2556
1635	$exit->slaying ("?random/$md5");	2557	$exit->slaying ("?random/$md5");
1636	$exit->msg (undef);	2558	$exit->msg (undef);
1637	}	2559	}
1638	}	2560	}
…		…
1640	sub cf::object::player::enter_exit {	2562	sub cf::object::player::enter_exit {
1641	my ($self, $exit) = @_;	2563	my ($self, $exit) = @_;
1642		2564
1643	return unless $self->type == cf::PLAYER;	2565	return unless $self->type == cf::PLAYER;
1644		2566
		2567	if ($exit->slaying eq "/!") {
		2568	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2569	# the problem is that $exit might not survive long enough
		2570	# so it needs to be done right now, right here
		2571	cf::sync_job { prepare_random_map $exit };
		2572	}
		2573
		2574	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2575	my $hp = $exit->stats->hp;
		2576	my $sp = $exit->stats->sp;
		2577
1645	$self->enter_link;	2578	$self->enter_link;
1646		2579
		2580	# if exit is damned, update players death & WoR home-position
		2581	$self->contr->savebed ($slaying, $hp, $sp)
		2582	if $exit->flag (FLAG_DAMNED);
		2583
1647	(cf::async {	2584	(async {
		2585	$self->deactivate_recursive; # just to be sure
1648	unless (eval {	2586	unless (eval {
1649	prepare_random_map $exit	2587	$self->goto ($slaying, $hp, $sp);
1650	if $exit->slaying eq "/!";
1651
1652	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1653	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1654		2588
1655	1;	2589	1;
1656	}) {	2590	}) {
1657	$self->message ("Something went wrong deep within the crossfire server. "	2591	$self->message ("Something went wrong deep within the crossfire server. "
1658	. "I'll try to bring you back to the map you were before. "	2592	. "I'll try to bring you back to the map you were before. "
1659	. "Please report this to the dungeon master",	2593	. "Please report this to the dungeon master!",
1660	cf::NDI_UNIQUE | cf::NDI_RED);	2594	cf::NDI_UNIQUE | cf::NDI_RED);
1661		2595
1662	warn "ERROR in enter_exit: $@";	2596	warn "ERROR in enter_exit: $@";
1663	$self->leave_link;	2597	$self->leave_link;
1664	}	2598	}
1665	})->prio (1);	2599	})->prio (1);
…		…
1678		2612
1679	sub cf::client::send_drawinfo {	2613	sub cf::client::send_drawinfo {
1680	my ($self, $text, $flags) = @_;	2614	my ($self, $text, $flags) = @_;
1681		2615
1682	utf8::encode $text;	2616	utf8::encode $text;
1683	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2617	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1684	}	2618	}
1685		2619
		2620	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2621
		2622	Send a drawinfo or msg packet to the client, formatting the msg for the
		2623	client if neccessary. C<$type> should be a string identifying the type of
		2624	the message, with C<log> being the default. If C<$color> is negative, suppress
		2625	the message unless the client supports the msg packet.
		2626
		2627	=cut
		2628
		2629	our %CHANNEL = (
		2630	"c/identify" => {
		2631	id => "identify",
		2632	title => "Identify",
		2633	reply => undef,
		2634	tooltip => "Items recently identified",
		2635	},
		2636	"c/examine" => {
		2637	id => "examine",
		2638	title => "Examine",
		2639	reply => undef,
		2640	tooltip => "Signs and other items you examined",
		2641	},
		2642	);
		2643
		2644	sub cf::client::send_msg {
		2645	my ($self, $channel, $msg, $color, @extra) = @_;
		2646
		2647	$msg = $self->pl->expand_cfpod ($msg);
		2648
		2649	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2650
		2651	# check predefined channels, for the benefit of C
		2652	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2653
		2654	if (ref $channel) {
		2655	# send meta info to client, if not yet sent
		2656	unless (exists $self->{channel}{$channel->{id}}) {
		2657	$self->{channel}{$channel->{id}} = $channel;
		2658	$self->ext_msg (channel_info => $channel)
		2659	if $self->can_msg;
		2660	}
		2661
		2662	$channel = $channel->{id};
		2663	}
		2664
		2665	return unless @extra || length $msg;
		2666
		2667	if ($self->can_msg) {
		2668	# default colour, mask it out
		2669	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2670	if $color & cf::NDI_DEF;
		2671
		2672	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2673	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2674	} else {
		2675	if ($color >= 0) {
		2676	# replace some tags by gcfclient-compatible ones
		2677	for ($msg) {
		2678	1 while
		2679	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2680	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2681	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2682	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2683	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2684	}
		2685
		2686	$color &= cf::NDI_COLOR_MASK;
		2687
		2688	utf8::encode $msg;
		2689
		2690	if (0 && $msg =~ /\[/) {
		2691	# COMMAND/INFO
		2692	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2693	} else {
		2694	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2695	$self->send_packet ("drawinfo $color $msg")
		2696	}
		2697	}
		2698	}
		2699	}
		2700
		2701	=item $client->ext_msg ($type, @msg)
		2702
		2703	Sends an ext event to the client.
		2704
		2705	=cut
		2706
		2707	sub cf::client::ext_msg($$@) {
		2708	my ($self, $type, @msg) = @_;
		2709
		2710	if ($self->extcmd == 2) {
		2711	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2712	} elsif ($self->extcmd == 1) { # TODO: remove
		2713	push @msg, msgtype => "event_$type";
		2714	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2715	}
		2716	}
		2717
		2718	=item $client->ext_reply ($msgid, @msg)
		2719
		2720	Sends an ext reply to the client.
		2721
		2722	=cut
		2723
		2724	sub cf::client::ext_reply($$@) {
		2725	my ($self, $id, @msg) = @_;
		2726
		2727	if ($self->extcmd == 2) {
		2728	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2729	} elsif ($self->extcmd == 1) {
		2730	#TODO: version 1, remove
		2731	unshift @msg, msgtype => "reply", msgid => $id;
		2732	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2733	}
		2734	}
1686		2735
1687	=item $success = $client->query ($flags, "text", \&cb)	2736	=item $success = $client->query ($flags, "text", \&cb)
1688		2737
1689	Queues a query to the client, calling the given callback with	2738	Queues a query to the client, calling the given callback with
1690	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2739	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1691	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2740	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1692		2741
1693	Queries can fail, so check the return code. Or don't, as queries will become	2742	Queries can fail, so check the return code. Or don't, as queries will
1694	reliable at some point in the future.	2743	become reliable at some point in the future.
1695		2744
1696	=cut	2745	=cut
1697		2746
1698	sub cf::client::query {	2747	sub cf::client::query {
1699	my ($self, $flags, $text, $cb) = @_;	2748	my ($self, $flags, $text, $cb) = @_;
…		…
1707	utf8::encode $text;	2756	utf8::encode $text;
1708	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2757	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1709		2758
1710	$self->send_packet ($self->{query_queue}[0][0])	2759	$self->send_packet ($self->{query_queue}[0][0])
1711	if @{ $self->{query_queue} } == 1;	2760	if @{ $self->{query_queue} } == 1;
		2761
		2762	1
1712	}	2763	}
1713		2764
1714	cf::client->attach (	2765	cf::client->attach (
		2766	on_connect => sub {
		2767	my ($ns) = @_;
		2768
		2769	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2770	},
1715	on_reply => sub {	2771	on_reply => sub {
1716	my ($ns, $msg) = @_;	2772	my ($ns, $msg) = @_;
1717		2773
1718	# this weird shuffling is so that direct followup queries	2774	# this weird shuffling is so that direct followup queries
1719	# get handled first	2775	# get handled first
1720	my $queue = delete $ns->{query_queue}	2776	my $queue = delete $ns->{query_queue}
1721	or return; # be conservative, not sure how that can happen, but we saw a crash here	2777	or return; # be conservative, not sure how that can happen, but we saw a crash here
1722		2778
1723	(shift @$queue)->[1]->($msg);	2779	(shift @$queue)->[1]->($msg);
		2780	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1724		2781
1725	push @{ $ns->{query_queue} }, @$queue;	2782	push @{ $ns->{query_queue} }, @$queue;
1726		2783
1727	if (@{ $ns->{query_queue} } == @$queue) {	2784	if (@{ $ns->{query_queue} } == @$queue) {
1728	if (@$queue) {	2785	if (@$queue) {
…		…
1730	} else {	2787	} else {
1731	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2788	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1732	}	2789	}
1733	}	2790	}
1734	},	2791	},
		2792	on_exticmd => sub {
		2793	my ($ns, $buf) = @_;
		2794
		2795	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2796
		2797	if (ref $msg) {
		2798	my ($type, $reply, @payload) =
		2799	"ARRAY" eq ref $msg
		2800	? @$msg
		2801	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2802
		2803	my @reply;
		2804
		2805	if (my $cb = $EXTICMD{$type}) {
		2806	@reply = $cb->($ns, @payload);
		2807	}
		2808
		2809	$ns->ext_reply ($reply, @reply)
		2810	if $reply;
		2811
		2812	} else {
		2813	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2814	}
		2815
		2816	cf::override;
		2817	},
1735	);	2818	);
1736		2819
1737	=item $client->coro (\&cb)	2820	=item $client->async (\&cb)
1738		2821
1739	Create a new coroutine, running the specified callback. The coroutine will	2822	Create a new coroutine, running the specified callback. The coroutine will
1740	be automatically cancelled when the client gets destroyed (e.g. on logout,	2823	be automatically cancelled when the client gets destroyed (e.g. on logout,
1741	or loss of connection).	2824	or loss of connection).
1742		2825
1743	=cut	2826	=cut
1744		2827
1745	sub cf::client::coro {	2828	sub cf::client::async {
1746	my ($self, $cb) = @_;	2829	my ($self, $cb) = @_;
1747		2830
1748	my $coro = &cf::async ($cb);	2831	my $coro = &Coro::async ($cb);
1749		2832
1750	$coro->on_destroy (sub {	2833	$coro->on_destroy (sub {
1751	delete $self->{_coro}{$coro+0};	2834	delete $self->{_coro}{$coro+0};
1752	});	2835	});
1753		2836
…		…
1780	our $safe = new Safe "safe";	2863	our $safe = new Safe "safe";
1781	our $safe_hole = new Safe::Hole;	2864	our $safe_hole = new Safe::Hole;
1782		2865
1783	$SIG{FPE} = 'IGNORE';	2866	$SIG{FPE} = 'IGNORE';
1784		2867
1785	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2868	$safe->permit_only (Opcode::opset qw(
		2869	:base_core :base_mem :base_orig :base_math
		2870	grepstart grepwhile mapstart mapwhile
		2871	sort time
		2872	));
1786		2873
1787	# here we export the classes and methods available to script code	2874	# here we export the classes and methods available to script code
1788		2875
1789	=pod	2876	=pod
1790		2877
1791	The following fucntions and emthods are available within a safe environment:	2878	The following functions and methods are available within a safe environment:
1792		2879
1793	cf::object contr pay_amount pay_player map	2880	cf::object
		2881	contr pay_amount pay_player map x y force_find force_add
		2882	insert remove name archname title slaying race decrease_ob_nr
		2883
1794	cf::object::player player	2884	cf::object::player
1795	cf::player peaceful	2885	player
1796	cf::map trigger	2886
		2887	cf::player
		2888	peaceful
		2889
		2890	cf::map
		2891	trigger
1797		2892
1798	=cut	2893	=cut
1799		2894
1800	for (	2895	for (
1801	["cf::object" => qw(contr pay_amount pay_player map)],	2896	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2897	insert remove inv name archname title slaying race
		2898	decrease_ob_nr)],
1802	["cf::object::player" => qw(player)],	2899	["cf::object::player" => qw(player)],
1803	["cf::player" => qw(peaceful)],	2900	["cf::player" => qw(peaceful)],
1804	["cf::map" => qw(trigger)],	2901	["cf::map" => qw(trigger)],
1805	) {	2902	) {
1806	no strict 'refs';	2903	no strict 'refs';
…		…
1877	=back	2974	=back
1878		2975
1879	=cut	2976	=cut
1880		2977
1881	#############################################################################	2978	#############################################################################
		2979	# the server's init and main functions
1882		2980
1883	=head2 EXTENSION DATABASE SUPPORT	2981	sub load_facedata($) {
		2982	my ($path) = @_;
1884		2983
1885	Crossfire maintains a very simple database for extension use. It can	2984	# HACK to clear player env face cache, we need some signal framework
1886	currently store anything that can be serialised using Storable, which	2985	# for this (global event?)
1887	excludes objects.	2986	%ext::player_env::MUSIC_FACE_CACHE = ();
1888		2987
1889	The parameter C<$family> should best start with the name of the extension	2988	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1890	using it, it should be unique.
1891		2989
1892	=over 4	2990	warn "loading facedata from $path\n";
1893		2991
1894	=item $hashref = cf::db_get $family	2992	my $facedata;
		2993	0 < aio_load $path, $facedata
		2994	or die "$path: $!";
1895		2995
1896	Return a hashref for use by the extension C<$family>, which can be	2996	$facedata = Coro::Storable::thaw $facedata;
1897	modified. After modifications, you have to call C<cf::db_dirty> or
1898	C<cf::db_sync>.
1899		2997
1900	=item $value = cf::db_get $family => $key	2998	$facedata->{version} == 2
		2999	or cf::cleanup "$path: version mismatch, cannot proceed.";
1901		3000
1902	Returns a single value from the database	3001	# patch in the exptable
1903		3002	$facedata->{resource}{"res/exp_table"} = {
1904	=item cf::db_put $family => $hashref	3003	type => FT_RSRC,
1905		3004	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1906	Stores the given family hashref into the database. Updates are delayed, if
1907	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1908
1909	=item cf::db_put $family => $key => $value
1910
1911	Stores the given C<$value> in the family hash. Updates are delayed, if you
1912	want the data to be synced to disk immediately, use C<cf::db_sync>.
1913
1914	=item cf::db_dirty
1915
1916	Marks the database as dirty, to be updated at a later time.
1917
1918	=item cf::db_sync
1919
1920	Immediately write the database to disk I<if it is dirty>.
1921
1922	=cut
1923
1924	our $DB;
1925
1926	{
1927	my $path = cf::localdir . "/database.pst";
1928
1929	sub db_load() {
1930	$DB = stat $path ? Storable::retrieve $path : { };
1931	}
1932
1933	my $pid;
1934
1935	sub db_save() {
1936	waitpid $pid, 0 if $pid;
1937	if (0 == ($pid = fork)) {
1938	$DB->{_meta}{version} = 1;
1939	Storable::nstore $DB, "$path~";
1940	rename "$path~", $path;
1941	cf::_exit 0 if defined $pid;
1942	}
1943	}
1944
1945	my $dirty;
1946
1947	sub db_sync() {
1948	db_save if $dirty;
1949	undef $dirty;
1950	}
1951
1952	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1953	db_sync;
1954	});	3005	};
		3006	cf::cede_to_tick;
1955		3007
1956	sub db_dirty() {
1957	$dirty = 1;
1958	$idle->start;
1959	}	3008	{
		3009	my $faces = $facedata->{faceinfo};
1960		3010
1961	sub db_get($;$) {	3011	while (my ($face, $info) = each %$faces) {
1962	@_ >= 2	3012	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1963	? $DB->{$_[0]}{$_[1]}	3013	cf::face::set_visibility $idx, $info->{visibility};
1964	: ($DB->{$_[0]} ||= { })	3014	cf::face::set_magicmap $idx, $info->{magicmap};
1965	}	3015	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3016	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1966		3017
1967	sub db_put($$;$) {	3018	cf::cede_to_tick;
1968	if (@_ >= 3) {
1969	$DB->{$_[0]}{$_[1]} = $_[2];
1970	} else {
1971	$DB->{$_[0]} = $_[1];
1972	}
1973	db_dirty;
1974	}
1975
1976	cf::global->attach (
1977	prio => 10000,
1978	on_cleanup => sub {
1979	db_sync;
1980	},	3019	}
1981	);
1982	}
1983		3020
1984	#############################################################################	3021	while (my ($face, $info) = each %$faces) {
1985	# the server's main()	3022	next unless $info->{smooth};
		3023	my $idx = cf::face::find $face
		3024	or next;
		3025	if (my $smooth = cf::face::find $info->{smooth}) {
		3026	cf::face::set_smooth $idx, $smooth;
		3027	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3028	} else {
		3029	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3030	}
1986		3031
1987	sub cfg_load {	3032	cf::cede_to_tick;
		3033	}
		3034	}
		3035
		3036	{
		3037	my $anims = $facedata->{animinfo};
		3038
		3039	while (my ($anim, $info) = each %$anims) {
		3040	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3041	cf::cede_to_tick;
		3042	}
		3043
		3044	cf::anim::invalidate_all; # d'oh
		3045	}
		3046
		3047	{
		3048	# TODO: for gcfclient pleasure, we should give resources
		3049	# that gcfclient doesn't grok a >10000 face index.
		3050	my $res = $facedata->{resource};
		3051
		3052	my $soundconf = delete $res->{"res/sound.conf"};
		3053
		3054	while (my ($name, $info) = each %$res) {
		3055	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3056	my $data;
		3057
		3058	if ($info->{type} & 1) {
		3059	# prepend meta info
		3060
		3061	my $meta = $enc->encode ({
		3062	name => $name,
		3063	%{ $info->{meta} || {} },
		3064	});
		3065
		3066	$data = pack "(w/a*)*", $meta, $info->{data};
		3067	} else {
		3068	$data = $info->{data};
		3069	}
		3070
		3071	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3072	cf::face::set_type $idx, $info->{type};
		3073
		3074	cf::cede_to_tick;
		3075	}
		3076
		3077	if ($soundconf) {
		3078	$soundconf = $enc->decode (delete $soundconf->{data});
		3079
		3080	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3081	my $sound = $soundconf->{compat}[$_]
		3082	or next;
		3083
		3084	my $face = cf::face::find "sound/$sound->[1]";
		3085	cf::sound::set $sound->[0] => $face;
		3086	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3087	}
		3088
		3089	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3090	my $face = cf::face::find "sound/$v";
		3091	cf::sound::set $k => $face;
		3092	}
		3093	}
		3094	}
		3095
		3096	1
		3097	}
		3098
		3099	register_exticmd fx_want => sub {
		3100	my ($ns, $want) = @_;
		3101
		3102	while (my ($k, $v) = each %$want) {
		3103	$ns->fx_want ($k, $v);
		3104	}
		3105	};
		3106
		3107	sub reload_regions {
		3108	# HACK to clear player env face cache, we need some signal framework
		3109	# for this (global event?)
		3110	%ext::player_env::MUSIC_FACE_CACHE = ();
		3111
		3112	load_resource_file "$MAPDIR/regions"
		3113	or die "unable to load regions file\n";
		3114
		3115	for (cf::region::list) {
		3116	$_->{match} = qr/$_->{match}/
		3117	if exists $_->{match};
		3118	}
		3119	}
		3120
		3121	sub reload_facedata {
		3122	load_facedata "$DATADIR/facedata"
		3123	or die "unable to load facedata\n";
		3124	}
		3125
		3126	sub reload_archetypes {
		3127	load_resource_file "$DATADIR/archetypes"
		3128	or die "unable to load archetypes\n";
		3129	#d# NEED to laod twice to resolve forward references
		3130	# this really needs to be done in an extra post-pass
		3131	# (which needs to be synchronous, so solve it differently)
		3132	load_resource_file "$DATADIR/archetypes"
		3133	or die "unable to load archetypes\n";
		3134	}
		3135
		3136	sub reload_treasures {
		3137	load_resource_file "$DATADIR/treasures"
		3138	or die "unable to load treasurelists\n";
		3139	}
		3140
		3141	sub reload_resources {
		3142	warn "reloading resource files...\n";
		3143
		3144	reload_regions;
		3145	reload_facedata;
		3146	#reload_archetypes;#d#
		3147	reload_archetypes;
		3148	reload_treasures;
		3149
		3150	warn "finished reloading resource files\n";
		3151	}
		3152
		3153	sub init {
		3154	reload_resources;
		3155	}
		3156
		3157	sub reload_config {
1988	open my $fh, "<:utf8", cf::confdir . "/config"	3158	open my $fh, "<:utf8", "$CONFDIR/config"
1989	or return;	3159	or return;
1990		3160
1991	local $/;	3161	local $/;
1992	*CFG = YAML::Syck::Load <$fh>;	3162	*CFG = YAML::Syck::Load <$fh>;
		3163
		3164	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3165
		3166	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3167	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3168
		3169	if (exists $CFG{mlockall}) {
		3170	eval {
		3171	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3172	and die "WARNING: m(un)lockall failed: $!\n";
		3173	};
		3174	warn $@ if $@;
		3175	}
1993	}	3176	}
1994		3177
1995	sub main {	3178	sub main {
1996	# we must not ever block the main coroutine	3179	# we must not ever block the main coroutine
1997	local $Coro::idle = sub {	3180	local $Coro::idle = sub {
1998	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3181	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1999	(Coro::unblock_sub {	3182	(async {
2000	Event::one_event;	3183	Event::one_event;
2001	})->();	3184	})->prio (Coro::PRIO_MAX);
2002	};	3185	};
2003		3186
2004	cfg_load;	3187	reload_config;
2005	db_load;	3188	db_init;
2006	load_extensions;	3189	load_extensions;
		3190
		3191	$TICK_WATCHER->start;
2007	Event::loop;	3192	Event::loop;
2008	}	3193	}
2009		3194
2010	#############################################################################	3195	#############################################################################
2011	# initialisation	3196	# initialisation and cleanup
2012		3197
		3198	# install some emergency cleanup handlers
		3199	BEGIN {
		3200	for my $signal (qw(INT HUP TERM)) {
		3201	Event->signal (
		3202	reentrant => 0,
		3203	data => WF_AUTOCANCEL,
		3204	signal => $signal,
		3205	prio => 0,
		3206	cb => sub {
		3207	cf::cleanup "SIG$signal";
		3208	},
		3209	);
		3210	}
		3211	}
		3212
		3213	sub write_runtime {
		3214	my $runtime = "$LOCALDIR/runtime";
		3215
		3216	# first touch the runtime file to show we are still running:
		3217	# the fsync below can take a very very long time.
		3218
		3219	IO::AIO::aio_utime $runtime, undef, undef;
		3220
		3221	my $guard = cf::lock_acquire "write_runtime";
		3222
		3223	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3224	or return;
		3225
		3226	my $value = $cf::RUNTIME + 90 + 10;
		3227	# 10 is the runtime save interval, for a monotonic clock
		3228	# 60 allows for the watchdog to kill the server.
		3229
		3230	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3231	and return;
		3232
		3233	# always fsync - this file is important
		3234	aio_fsync $fh
		3235	and return;
		3236
		3237	# touch it again to show we are up-to-date
		3238	aio_utime $fh, undef, undef;
		3239
		3240	close $fh
		3241	or return;
		3242
		3243	aio_rename "$runtime~", $runtime
		3244	and return;
		3245
		3246	warn "runtime file written.\n";
		3247
		3248	1
		3249	}
		3250
		3251	sub emergency_save() {
		3252	my $freeze_guard = cf::freeze_mainloop;
		3253
		3254	warn "enter emergency perl save\n";
		3255
		3256	cf::sync_job {
		3257	# use a peculiar iteration method to avoid tripping on perl
		3258	# refcount bugs in for. also avoids problems with players
		3259	# and maps saved/destroyed asynchronously.
		3260	warn "begin emergency player save\n";
		3261	for my $login (keys %cf::PLAYER) {
		3262	my $pl = $cf::PLAYER{$login} or next;
		3263	$pl->valid or next;
		3264	$pl->save;
		3265	}
		3266	warn "end emergency player save\n";
		3267
		3268	warn "begin emergency map save\n";
		3269	for my $path (keys %cf::MAP) {
		3270	my $map = $cf::MAP{$path} or next;
		3271	$map->valid or next;
		3272	$map->save;
		3273	}
		3274	warn "end emergency map save\n";
		3275
		3276	warn "begin emergency database checkpoint\n";
		3277	BDB::db_env_txn_checkpoint $DB_ENV;
		3278	warn "end emergency database checkpoint\n";
		3279	};
		3280
		3281	warn "leave emergency perl save\n";
		3282	}
		3283
		3284	sub post_cleanup {
		3285	my ($make_core) = @_;
		3286
		3287	warn Carp::longmess "post_cleanup backtrace"
		3288	if $make_core;
		3289	}
		3290
2013	sub reload() {	3291	sub do_reload_perl() {
2014	# can/must only be called in main	3292	# can/must only be called in main
2015	if ($Coro::current != $Coro::main) {	3293	if ($Coro::current != $Coro::main) {
2016	warn "can only reload from main coroutine\n";	3294	warn "can only reload from main coroutine";
2017	return;	3295	return;
2018	}	3296	}
2019		3297
2020	warn "reloading...";	3298	warn "reloading...";
2021		3299
2022	local $FREEZE = 1;	3300	warn "entering sync_job";
		3301
		3302	cf::sync_job {
		3303	cf::write_runtime; # external watchdog should not bark
2023	cf::emergency_save;	3304	cf::emergency_save;
		3305	cf::write_runtime; # external watchdog should not bark
2024		3306
2025	eval {	3307	warn "syncing database to disk";
		3308	BDB::db_env_txn_checkpoint $DB_ENV;
		3309
2026	# if anything goes wrong in here, we should simply crash as we already saved	3310	# if anything goes wrong in here, we should simply crash as we already saved
2027		3311
2028	# cancel all watchers	3312	warn "cancelling all WF_AUTOCANCEL watchers";
2029	for (Event::all_watchers) {	3313	for (Event::all_watchers) {
2030	$_->cancel if $_->data & WF_AUTOCANCEL;	3314	$_->cancel if $_->data & WF_AUTOCANCEL;
2031	}	3315	}
2032		3316
		3317	warn "flushing outstanding aio requests";
		3318	for (;;) {
		3319	BDB::flush;
		3320	IO::AIO::flush;
		3321	Coro::cede;
		3322	last unless IO::AIO::nreqs || BDB::nreqs;
		3323	warn "iterate...";
		3324	}
		3325
		3326	++$RELOAD;
		3327
2033	# cancel all extension coros	3328	warn "cancelling all extension coros";
2034	$_->cancel for values %EXT_CORO;	3329	$_->cancel for values %EXT_CORO;
2035	%EXT_CORO = ();	3330	%EXT_CORO = ();
2036		3331
2037	# unload all extensions	3332	warn "removing commands";
2038	for (@exts) {	3333	%COMMAND = ();
		3334
		3335	warn "removing ext/exti commands";
		3336	%EXTCMD = ();
		3337	%EXTICMD = ();
		3338
		3339	warn "unloading/nuking all extensions";
		3340	for my $pkg (@EXTS) {
2039	warn "unloading <$_>";	3341	warn "... unloading $pkg";
2040	unload_extension $_;	3342
		3343	if (my $cb = $pkg->can ("unload")) {
		3344	eval {
		3345	$cb->($pkg);
		3346	1
		3347	} or warn "$pkg unloaded, but with errors: $@";
2041	}	3348	}
2042		3349
		3350	warn "... nuking $pkg";
		3351	Symbol::delete_package $pkg;
		3352	}
		3353
2043	# unload all modules loaded from $LIBDIR	3354	warn "unloading all perl modules loaded from $LIBDIR";
2044	while (my ($k, $v) = each %INC) {	3355	while (my ($k, $v) = each %INC) {
2045	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3356	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2046		3357
2047	warn "removing <$k>";	3358	warn "... unloading $k";
2048	delete $INC{$k};	3359	delete $INC{$k};
2049		3360
2050	$k =~ s/\.pm$//;	3361	$k =~ s/\.pm$//;
2051	$k =~ s/\//::/g;	3362	$k =~ s/\//::/g;
2052		3363
…		…
2055	}	3366	}
2056		3367
2057	Symbol::delete_package $k;	3368	Symbol::delete_package $k;
2058	}	3369	}
2059		3370
2060	# sync database to disk
2061	cf::db_sync;
2062	IO::AIO::flush;
2063
2064	# get rid of safe::, as good as possible	3371	warn "getting rid of safe::, as good as possible";
2065	Symbol::delete_package "safe::$_"	3372	Symbol::delete_package "safe::$_"
2066	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3373	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2067		3374
2068	# remove register_script_function callbacks
2069	# TODO
2070
2071	# unload cf.pm "a bit"	3375	warn "unloading cf.pm \"a bit\"";
2072	delete $INC{"cf.pm"};	3376	delete $INC{"cf.pm"};
		3377	delete $INC{"cf/pod.pm"};
2073		3378
2074	# don't, removes xs symbols, too,	3379	# don't, removes xs symbols, too,
2075	# and global variables created in xs	3380	# and global variables created in xs
2076	#Symbol::delete_package __PACKAGE__;	3381	#Symbol::delete_package __PACKAGE__;
2077		3382
2078	# reload cf.pm	3383	warn "unload completed, starting to reload now";
		3384
2079	warn "reloading cf.pm";	3385	warn "reloading cf.pm";
2080	require cf;	3386	require cf;
2081	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3387	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2082		3388
2083	# load config and database again	3389	warn "loading config and database again";
2084	cf::cfg_load;	3390	cf::reload_config;
2085	cf::db_load;
2086		3391
2087	# load extensions
2088	warn "load extensions";	3392	warn "loading extensions";
2089	cf::load_extensions;	3393	cf::load_extensions;
2090		3394
2091	# reattach attachments to objects	3395	warn "reattaching attachments to objects/players";
2092	warn "reattach";	3396	_global_reattach; # objects, sockets
2093	_global_reattach;	3397	warn "reattaching attachments to maps";
2094	};	3398	reattach $_ for values %MAP;
		3399	warn "reattaching attachments to players";
		3400	reattach $_ for values %PLAYER;
2095		3401
2096	if ($@) {	3402	warn "leaving sync_job";
		3403
		3404	1
		3405	} or do {
2097	warn $@;	3406	warn $@;
2098	warn "error while reloading, exiting.";	3407	warn "error while reloading, exiting.";
2099	exit 1;	3408	exit 1;
2100	}	3409	};
2101		3410
2102	warn "reloaded successfully";	3411	warn "reloaded";
2103	};	3412	};
2104		3413
2105	#############################################################################	3414	our $RELOAD_WATCHER; # used only during reload
2106		3415
2107	unless ($LINK_MAP) {	3416	sub reload_perl() {
2108	$LINK_MAP = cf::map::new;	3417	# doing reload synchronously and two reloads happen back-to-back,
		3418	# coro crashes during coro_state_free->destroy here.
2109		3419
2110	$LINK_MAP->width (41);	3420	$RELOAD_WATCHER ||= Event->timer (
2111	$LINK_MAP->height (41);	3421	reentrant => 0,
2112	$LINK_MAP->alloc;
2113	$LINK_MAP->path ("{link}");
2114	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2115	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2116
2117	# dirty hack because... archetypes are not yet loaded
2118	Event->timer (
2119	after => 2,	3422	after => 0,
		3423	data => WF_AUTOCANCEL,
2120	cb => sub {	3424	cb => sub {
2121	$_[0]->w->cancel;	3425	do_reload_perl;
2122		3426	undef $RELOAD_WATCHER;
2123	# provide some exits "home"
2124	my $exit = cf::object::new "exit";
2125
2126	$exit->slaying ($EMERGENCY_POSITION->[0]);
2127	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2128	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2129
2130	$LINK_MAP->insert ($exit->clone, 19, 19);
2131	$LINK_MAP->insert ($exit->clone, 19, 20);
2132	$LINK_MAP->insert ($exit->clone, 19, 21);
2133	$LINK_MAP->insert ($exit->clone, 20, 19);
2134	$LINK_MAP->insert ($exit->clone, 20, 21);
2135	$LINK_MAP->insert ($exit->clone, 21, 19);
2136	$LINK_MAP->insert ($exit->clone, 21, 20);
2137	$LINK_MAP->insert ($exit->clone, 21, 21);
2138
2139	$exit->destroy;
2140	});	3427	},
2141		3428	);
2142	$LINK_MAP->{deny_save} = 1;
2143	$LINK_MAP->{deny_reset} = 1;
2144
2145	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2146	}	3429	}
2147
2148	register "<global>", __PACKAGE__;
2149		3430
2150	register_command "reload" => sub {	3431	register_command "reload" => sub {
2151	my ($who, $arg) = @_;	3432	my ($who, $arg) = @_;
2152		3433
2153	if ($who->flag (FLAG_WIZ)) {	3434	if ($who->flag (FLAG_WIZ)) {
2154	$who->message ("start of reload.");
2155	reload;
2156	$who->message ("end of reload.");	3435	$who->message ("reloading server.");
		3436	async { reload_perl };
2157	}	3437	}
2158	};	3438	};
2159		3439
2160	unshift @INC, $LIBDIR;	3440	unshift @INC, $LIBDIR;
		3441
		3442	my $bug_warning = 0;
		3443
		3444	our @WAIT_FOR_TICK;
		3445	our @WAIT_FOR_TICK_BEGIN;
		3446
		3447	sub wait_for_tick {
		3448	return unless $TICK_WATCHER->is_active;
		3449	return if $Coro::current == $Coro::main;
		3450
		3451	my $signal = new Coro::Signal;
		3452	push @WAIT_FOR_TICK, $signal;
		3453	$signal->wait;
		3454	}
		3455
		3456	sub wait_for_tick_begin {
		3457	return unless $TICK_WATCHER->is_active;
		3458	return if $Coro::current == $Coro::main;
		3459
		3460	my $signal = new Coro::Signal;
		3461	push @WAIT_FOR_TICK_BEGIN, $signal;
		3462	$signal->wait;
		3463	}
		3464
		3465	our $stat_fh;
		3466	sysopen $stat_fh, "/tmp/cfstats", Fcntl::O_APPEND | Fcntl::O_CREAT | Fcntl::O_WRONLY, 0600;#d#
2161		3467
2162	$TICK_WATCHER = Event->timer (	3468	$TICK_WATCHER = Event->timer (
2163	reentrant => 0,	3469	reentrant => 0,
		3470	parked => 1,
2164	prio => 0,	3471	prio => 0,
2165	at => $NEXT_TICK || $TICK,	3472	at => $NEXT_TICK || $TICK,
2166	data => WF_AUTOCANCEL,	3473	data => WF_AUTOCANCEL,
2167	cb => sub {	3474	cb => sub {
2168	unless ($FREEZE) {	3475	if ($Coro::current != $Coro::main) {
		3476	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3477	unless ++$bug_warning > 10;
		3478	return;
		3479	}
		3480
		3481	my @pl = cf::player::list; my $stats = sprintf "%.2f %d %d %d", $RUNTIME, (scalar @pl), cf::object::actives_size, cf::object::objects_size; #d#
		3482
		3483	$NOW = $tick_start = Event::time;
		3484
2169	cf::server_tick; # one server iteration	3485	cf::server_tick; # one server iteration
		3486
2170	$RUNTIME += $TICK;	3487	$RUNTIME += $TICK;
2171	}
2172
2173	$NEXT_TICK += $TICK;	3488	$NEXT_TICK += $TICK;
2174		3489
		3490	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3491	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3492	Coro::async_pool {
		3493	write_runtime
		3494	or warn "ERROR: unable to write runtime file: $!";
		3495	};
		3496	}
		3497
		3498	# my $AFTER = Event::time;
		3499	# warn $AFTER - $NOW;#d#
		3500
		3501	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3502	$sig->send;
		3503	}
		3504	while (my $sig = shift @WAIT_FOR_TICK) {
		3505	$sig->send;
		3506	}
		3507
		3508	$NOW = Event::time;
		3509
2175	# if we are delayed by four ticks or more, skip them all	3510	# if we are delayed by four ticks or more, skip them all
2176	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3511	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2177		3512
2178	$TICK_WATCHER->at ($NEXT_TICK);	3513	$TICK_WATCHER->at ($NEXT_TICK);
2179	$TICK_WATCHER->start;	3514	$TICK_WATCHER->start;
		3515
		3516	$LOAD = ($NOW - $tick_start) / $TICK;
		3517	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3518
		3519	_post_tick;
		3520
		3521	# gather some statistics#d#
		3522	$stats .= sprintf " %d\n", 10000 * ($NOW - $tick_start);#d#
		3523	IO::AIO::aio_write $stat_fh, undef, undef, $stats, 0;#d#
2180	},	3524	},
2181	);	3525	);
2182		3526
		3527	{
		3528	BDB::min_parallel 8;
2183	IO::AIO::max_poll_time $TICK * 0.2;	3529	BDB::max_poll_time $TICK * 0.1;
2184		3530	$BDB_POLL_WATCHER = Event->io (
2185	Event->io (	3531	reentrant => 0,
2186	fd => IO::AIO::poll_fileno,	3532	fd => BDB::poll_fileno,
2187	poll => 'r',	3533	poll => 'r',
2188	prio => 5,	3534	prio => 0,
2189	data => WF_AUTOCANCEL,
2190	cb => \&IO::AIO::poll_cb,
2191	);
2192
2193	Event->timer (
2194	data => WF_AUTOCANCEL,	3535	data => WF_AUTOCANCEL,
		3536	cb => \&BDB::poll_cb,
		3537	);
		3538
		3539	BDB::set_sync_prepare {
		3540	my $status;
		3541	my $current = $Coro::current;
		3542	(
		3543	sub {
		3544	$status = $!;
		3545	$current->ready; undef $current;
		3546	},
		3547	sub {
		3548	Coro::schedule while defined $current;
		3549	$! = $status;
		3550	},
		3551	)
		3552	};
		3553
		3554	unless ($DB_ENV) {
		3555	$DB_ENV = BDB::db_env_create;
		3556
		3557	cf::sync_job {
		3558	eval {
		3559	BDB::db_env_open
		3560	$DB_ENV,
		3561	$BDBDIR,
		3562	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3563	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3564	0666;
		3565
		3566	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3567
		3568	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3569	| BDB::LOG_AUTOREMOVE, 1);
		3570	$DB_ENV->set_lk_detect;
		3571	};
		3572
		3573	cf::cleanup "db_env_open(db): $@" if $@;
		3574	};
		3575	}
		3576
		3577	$BDB_CHECKPOINT_WATCHER = Event->timer (
2195	after => 0,	3578	after => 11,
2196	interval => 10,	3579	interval => 60,
		3580	hard => 1,
		3581	prio => 0,
		3582	data => WF_AUTOCANCEL,
2197	cb => sub {	3583	cb => sub {
2198	(Coro::unblock_sub {	3584	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
2199	write_runtime	3585	},
2200	or warn "ERROR: unable to write runtime file: $!";	3586	);
		3587	$BDB_TRICKLE_WATCHER = Event->timer (
		3588	after => 5,
		3589	interval => 10,
		3590	hard => 1,
		3591	prio => 0,
		3592	data => WF_AUTOCANCEL,
		3593	cb => sub {
		3594	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3595	},
		3596	);
		3597	}
		3598
		3599	{
		3600	IO::AIO::min_parallel 8;
		3601
		3602	undef $Coro::AIO::WATCHER;
		3603	IO::AIO::max_poll_time $TICK * 0.1;
		3604	$AIO_POLL_WATCHER = Event->io (
		3605	reentrant => 0,
		3606	data => WF_AUTOCANCEL,
		3607	fd => IO::AIO::poll_fileno,
		3608	poll => 'r',
		3609	prio => 6,
		3610	cb => \&IO::AIO::poll_cb,
		3611	);
		3612	}
		3613
		3614	my $_log_backtrace;
		3615
		3616	sub _log_backtrace {
		3617	my ($msg, @addr) = @_;
		3618
		3619	$msg =~ s/\n//;
		3620
		3621	# limit the # of concurrent backtraces
		3622	if ($_log_backtrace < 2) {
		3623	++$_log_backtrace;
		3624	async {
		3625	my @bt = fork_call {
		3626	@addr = map { sprintf "%x", $_ } @addr;
		3627	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3628	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3629	or die "addr2line: $!";
		3630
		3631	my @funcs;
		3632	my @res = <$fh>;
		3633	chomp for @res;
		3634	while (@res) {
		3635	my ($func, $line) = splice @res, 0, 2, ();
		3636	push @funcs, "[$func] $line";
		3637	}
		3638
		3639	@funcs
		3640	};
		3641
		3642	LOG llevInfo, "[ABT] $msg\n";
		3643	LOG llevInfo, "[ABT] $_\n" for @bt;
		3644	--$_log_backtrace;
2201	})->();	3645	};
		3646	} else {
		3647	LOG llevInfo, "[ABT] $msg\n";
		3648	LOG llevInfo, "[ABT] [suppressed]\n";
2202	},	3649	}
2203	);	3650	}
		3651
		3652	# load additional modules
		3653	use cf::pod;
2204		3654
2205	END { cf::emergency_save }	3655	END { cf::emergency_save }
2206		3656
2207	1	3657	1
2208		3658

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