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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.131 by root, Thu Jan 4 00:53:54 2007 UTC vs.
Revision 1.388 by root, Thu Oct 18 02:56:13 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Socket;
		9	use Event;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.3 ();	15	use Coro 4.1 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
		28	use Data::Dumper;
20	use Digest::MD5;	29	use Digest::MD5;
21	use Fcntl;	30	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.51 ();
24	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
25		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
27		44
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
30		47
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		49
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		51
35	our %COMMAND = ();	52	our %COMMAND = ();
36	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
38		60
		61	our $RELOAD; # number of reloads so far
39	our @EVENT;	62	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		63
42	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	80	our $NEXT_TICK;
45	our $NOW;	81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $BDB_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
		88	our $DB_ENV;
46		89
47	our %CFG;	90	our %CFG;
48		91
49	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	93	our $RUNTIME;
51		94
52	our %MAP; # all maps	95	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	96	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	97	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	98
56	our %EXT_CORO;	99	# used to convert map paths into valid unix filenames by replacing / by ∕
		100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
57		105
58	binmode STDOUT;	106	binmode STDOUT;
59	binmode STDERR;	107	binmode STDERR;
60		108
61	# read virtual server time, if available	109	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
66	}	114	}
67		115
68	mkdir cf::localdir;	116	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		118
74	# a special map that is always available
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
77		122
78	#############################################################################	123	#############################################################################
79		124
80	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
81		126
…		…
88	=item $cf::RUNTIME	133	=item $cf::RUNTIME
89		134
90	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
91	every server tick.	136	every server tick.
92		137
93	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
94		141
95	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
96	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
97		146
98	=item $cf::NOW	147	=item $cf::NOW
99		148
100	The time of the last (current) server tick.	149	The time of the last (current) server tick.
101		150
102	=item $cf::TICK	151	=item $cf::TICK
103		152
104	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
105		164
106	=item %cf::CFG	165	=item %cf::CFG
107		166
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
109	from wherever your confdir points to.	168	from wherever your confdir points to.
		169
		170	=item cf::wait_for_tick, cf::wait_for_tick_begin
		171
		172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		173	returns directly I<after> the tick processing (and consequently, can only wake one process
		174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
110		181
111	=back	182	=back
112		183
113	=cut	184	=cut
114		185
115	BEGIN {	186	BEGIN {
116	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	188	my $msg = join "", @_;
118	utf8::encode $msg;
119		189
120	$msg .= "\n"	190	$msg .= "\n"
121	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
122		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		194
123	LOG llevError, "cfperl: $msg";	195	LOG llevError, $msg;
124	};	196	};
125	}	197	}
126		198
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
132	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
133		206
134	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
135	# within the Safe compartment.	208	# within the Safe compartment.
136	for my $pkg (qw(	209	for my $pkg (qw(
137	cf::global cf::attachable	210	cf::global cf::attachable
…		…
146		219
147	$Event::DIED = sub {	220	$Event::DIED = sub {
148	warn "error in event callback: @_";	221	warn "error in event callback: @_";
149	};	222	};
150		223
151	my %ext_pkg;	224	#############################################################################
152	my @exts;
153	my @hook;
154		225
155	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
156		227
157	=over 4	228	=over 4
158		229
159	=cut	230	=item dumpval $ref
160		231
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	232	=cut
		233
		234	sub dumpval {
		235	eval {
		236	local $SIG{__DIE__};
		237	my $d;
		238	if (1) {
		239	$d = new Data::Dumper([$_[0]], ["*var"]);
		240	$d->Terse(1);
		241	$d->Indent(2);
		242	$d->Quotekeys(0);
		243	$d->Useqq(1);
		244	#$d->Bless(...);
		245	$d->Seen($_[1]) if @_ > 1;
		246	$d = $d->Dump();
		247	}
		248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		249	$d
		250	} || "[unable to dump $_[0]: '$@']";
		251	}
162		252
163	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
164		254
165	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
166		256
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
175		258
176	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
177		260
178	=cut	261	=cut
179		262
180	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182	JSON::Syck::Dump $_[0]
183	}
184		264
185	=item my $guard = cf::guard { BLOCK }	265	sub to_json ($) { $json_coder->encode ($_[0]) }
186		266	sub from_json ($) { $json_coder->decode ($_[0]) }
187	Run the given callback when the guard object gets destroyed (useful for
188	coroutine cancellations).
189
190	You can call C<< ->cancel >> on the guard object to stop the block from
191	being executed.
192
193	=cut
194
195	sub guard(&) {
196	bless \(my $cb = $_[0]), cf::guard::;
197	}
198
199	sub cf::guard::cancel {
200	${$_[0]} = sub { };
201	}
202
203	sub cf::guard::DESTROY {
204	${$_[0]}->();
205	}
206		267
207	=item cf::lock_wait $string	268	=item cf::lock_wait $string
208		269
209	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
210		271
211	=item my $lock = cf::lock_acquire $string	272	=item my $lock = cf::lock_acquire $string
212		273
213	Wait until the given lock is available and then acquires it and returns	274	Wait until the given lock is available and then acquires it and returns
214	a guard object. If the guard object gets destroyed (goes out of scope,	275	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
215	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
216	returned.	277	returned.
217		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
218	Lock names should begin with a unique identifier (for example, find_map	282	Lock names should begin with a unique identifier (for example, cf::map::find
219	uses map_find and load_map uses map_load).	283	uses map_find and cf::map::load uses map_load).
		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
220		288
221	=cut	289	=cut
222		290
223	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
224		293
225	sub lock_wait($) {	294	sub lock_wait($) {
226	my ($key) = @_;	295	my ($key) = @_;
		296
		297	if ($LOCKER{$key} == $Coro::current) {#d#
		298	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		299	return;#d#
		300	}#d#
227		301
228	# wait for lock, if any	302	# wait for lock, if any
229	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
230	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
231	Coro::schedule;	305	Coro::schedule;
…		…
237		311
238	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
239	lock_wait $key;	313	lock_wait $key;
240		314
241	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
242		317
243	cf::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
244	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
246	}	322	}
247	}	323	}
248		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
		331	sub freeze_mainloop {
		332	return unless $TICK_WATCHER->is_active;
		333
		334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
		337	$TICK_WATCHER->stop;
		338	$guard
		339	}
		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	$Coro::current->desc ("timeslot manager");
		360
		361	my $signal = new Coro::Signal;
		362
		363	while () {
		364	next_job:
		365	my $avail = cf::till_tick;
		366	if ($avail > 0.01) {
		367	for (0 .. $#SLOT_QUEUE) {
		368	if ($SLOT_QUEUE[$_][0] < $avail) {
		369	my $job = splice @SLOT_QUEUE, $_, 1, ();
		370	$job->[2]->send;
		371	Coro::cede;
		372	goto next_job;
		373	}
		374	}
		375	}
		376
		377	if (@SLOT_QUEUE) {
		378	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		379	push @cf::WAIT_FOR_TICK, $signal;
		380	$signal->wait;
		381	} else {
		382	Coro::schedule;
		383	}
		384	}
		385	};
		386
		387	sub get_slot($;$$) {
		388	my ($time, $pri, $name) = @_;
		389
		390	$time = $TICK * .6 if $time > $TICK * .6;
		391	my $sig = new Coro::Signal;
		392
		393	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		394	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		395	$SLOT_QUEUE->ready;
		396	$sig->wait;
		397	}
		398
249	=item cf::async { BLOCK }	399	=item cf::async { BLOCK }
250		400
251	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	401	Currently the same as Coro::async_pool, meaning you cannot use
252	error instead of exiting the server in case of a problem.	402	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		403	thing you are allowed to do is call C<prio> on it.
253		404
254	=cut	405	=cut
255		406
256	sub async(&) {	407	BEGIN { *async = \&Coro::async_pool }
257	my ($cb) = @_;
258
259	Coro::async {
260	eval { $cb->() };
261	warn $@ if $@;
262	}
263	}
264		408
265	=item cf::sync_job { BLOCK }	409	=item cf::sync_job { BLOCK }
266		410
267	The design of crossfire+ requires that the main coro ($Coro::main) is	411	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
268	always able to handle events or runnable, as crossfire+ is only partly	412	is always able to handle events or runnable, as Crossfire TRT is only
269	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	413	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		414	acceptable.
270		415
271	If it must be done, put the blocking parts into C<sync_job>. This will run	416	If it must be done, put the blocking parts into C<sync_job>. This will run
272	the given BLOCK in another coroutine while waiting for the result. The	417	the given BLOCK in another coroutine while waiting for the result. The
273	server will be frozen during this time, so the block should either finish	418	server will be frozen during this time, so the block should either finish
274	fast or be very important.	419	fast or be very important.
…		…
277		422
278	sub sync_job(&) {	423	sub sync_job(&) {
279	my ($job) = @_;	424	my ($job) = @_;
280		425
281	if ($Coro::current == $Coro::main) {	426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
282	# this is the main coro, too bad, we have to block	429	# this is the main coro, too bad, we have to block
283	# till the operation succeeds, freezing the server :/	430	# till the operation succeeds, freezing the server :/
284		431
		432	LOG llevError, Carp::longmess "sync job";#d#
		433
285	# TODO: use suspend/resume instead	434	# TODO: use suspend/resume instead
286	# (but this is cancel-safe)	435	# (but this is cancel-safe)
287	local $FREEZE = 1;	436	my $freeze_guard = freeze_mainloop;
288		437
289	my $busy = 1;	438	my $busy = 1;
290	my @res;	439	my @res;
291		440
292	(Coro::async {	441	(async {
		442	$Coro::current->desc ("sync job coro");
293	@res = eval { $job->() };	443	@res = eval { $job->() };
294	warn $@ if $@;	444	warn $@ if $@;
295	undef $busy;	445	undef $busy;
296	})->prio (Coro::PRIO_MAX);	446	})->prio (Coro::PRIO_MAX);
297		447
298	while ($busy) {	448	while ($busy) {
		449	if (Coro::nready) {
299	Coro::cede_notself;	450	Coro::cede_notself;
300	Event::one_event unless Coro::nready;	451	} else {
		452	Event::one_event;
301	}	453	}
		454	}
		455
		456	$time = Event::time - $time;
		457
		458	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		459	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		460
		461	$tick_start += $time; # do not account sync jobs to server load
302		462
303	wantarray ? @res : $res[0]	463	wantarray ? @res : $res[0]
304	} else {	464	} else {
305	# we are in another coroutine, how wonderful, everything just works	465	# we are in another coroutine, how wonderful, everything just works
306		466
307	$job->()	467	$job->()
308	}	468	}
309	}	469	}
310		470
311	=item $coro = cf::coro { BLOCK }	471	=item $coro = cf::async_ext { BLOCK }
312		472
313	Creates and returns a new coro. This coro is automcatially being canceled	473	Like async, but this coro is automatically being canceled when the
314	when the extension calling this is being unloaded.	474	extension calling this is being unloaded.
315		475
316	=cut	476	=cut
317		477
318	sub coro(&) {	478	sub async_ext(&) {
319	my $cb = shift;	479	my $cb = shift;
320		480
321	my $coro = &cf::async ($cb);	481	my $coro = &Coro::async ($cb);
322		482
323	$coro->on_destroy (sub {	483	$coro->on_destroy (sub {
324	delete $EXT_CORO{$coro+0};	484	delete $EXT_CORO{$coro+0};
325	});	485	});
326	$EXT_CORO{$coro+0} = $coro;	486	$EXT_CORO{$coro+0} = $coro;
327		487
328	$coro	488	$coro
329	}	489	}
330		490
331	sub write_runtime {	491	=item fork_call { }, $args
332	my $runtime = cf::localdir . "/runtime";
333		492
334	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	493	Executes the given code block with the given arguments in a seperate
335	or return;	494	process, returning the results. Everything must be serialisable with
		495	Coro::Storable. May, of course, block. Note that the executed sub may
		496	never block itself or use any form of Event handling.
336		497
337	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	498	=cut
338	(aio_write $fh, 0, (length $value), $value, 0) <= 0
339	and return;
340		499
341	aio_fsync $fh	500	sub fork_call(&@) {
342	and return;	501	my ($cb, @args) = @_;
343		502
344	close $fh	503	# we seemingly have to make a local copy of the whole thing,
345	or return;	504	# otherwise perl prematurely frees the stuff :/
		505	# TODO: investigate and fix (likely this will be rather laborious)
346		506
347	aio_rename "$runtime~", $runtime	507	my @res = Coro::Util::fork_eval {
348	and return;	508	reset_signals;
		509	&$cb
		510	}, @args;
349		511
		512	wantarray ? @res : $res[-1]
		513	}
		514
		515	=item $value = cf::db_get $family => $key
		516
		517	Returns a single value from the environment database.
		518
		519	=item cf::db_put $family => $key => $value
		520
		521	Stores the given C<$value> in the family. It can currently store binary
		522	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		523
		524	=item $db = cf::db_table "name"
		525
		526	Create and/or open a new database table. The string must not be "db" and must be unique
		527	within each server.
		528
		529	=cut
		530
		531	sub db_table($) {
		532	my ($name) = @_;
		533	my $db = BDB::db_create $DB_ENV;
		534
		535	eval {
		536	$db->set_flags (BDB::CHKSUM);
		537
		538	utf8::encode $name;
		539	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		540	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		541	cf::cleanup "db_open(db): $!" if $!;
		542	};
		543	cf::cleanup "db_open(db): $@" if $@;
		544
		545	$db
		546	}
		547
		548	our $DB;
		549
		550	sub db_init {
		551	cf::sync_job {
		552	$DB ||= db_table "db";
		553	};
		554	}
		555
		556	sub db_get($$) {
		557	my $key = "$_[0]/$_[1]";
		558
		559	cf::sync_job {
		560	BDB::db_get $DB, undef, $key, my $data;
		561
		562	$! ? ()
		563	: $data
350	1	564	}
		565	}
		566
		567	sub db_put($$$) {
		568	BDB::dbreq_pri 4;
		569	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		570	}
		571
		572	=item cf::cache $id => [$paths...], $processversion => $process
		573
		574	Generic caching function that returns the value of the resource $id,
		575	caching and regenerating as required.
		576
		577	This function can block.
		578
		579	=cut
		580
		581	sub cache {
		582	my ($id, $src, $processversion, $process) = @_;
		583
		584	my $meta =
		585	join "\x00",
		586	$processversion,
		587	map {
		588	aio_stat $_
		589	and Carp::croak "$_: $!";
		590
		591	($_, (stat _)[7,9])
		592	} @$src;
		593
		594	my $dbmeta = db_get cache => "$id/meta";
		595	if ($dbmeta ne $meta) {
		596	# changed, we may need to process
		597
		598	my @data;
		599	my $md5;
		600
		601	for (0 .. $#$src) {
		602	0 <= aio_load $src->[$_], $data[$_]
		603	or Carp::croak "$src->[$_]: $!";
		604	}
		605
		606	# if processing is expensive, check
		607	# checksum first
		608	if (1) {
		609	$md5 =
		610	join "\x00",
		611	$processversion,
		612	map {
		613	cf::cede_to_tick;
		614	($src->[$_], Digest::MD5::md5_hex $data[$_])
		615	} 0.. $#$src;
		616
		617
		618	my $dbmd5 = db_get cache => "$id/md5";
		619	if ($dbmd5 eq $md5) {
		620	db_put cache => "$id/meta", $meta;
		621
		622	return db_get cache => "$id/data";
		623	}
		624	}
		625
		626	my $t1 = Time::HiRes::time;
		627	my $data = $process->(\@data);
		628	my $t2 = Time::HiRes::time;
		629
		630	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		631
		632	db_put cache => "$id/data", $data;
		633	db_put cache => "$id/md5" , $md5;
		634	db_put cache => "$id/meta", $meta;
		635
		636	return $data;
		637	}
		638
		639	db_get cache => "$id/data"
		640	}
		641
		642	=item cf::datalog type => key => value, ...
		643
		644	Log a datalog packet of the given type with the given key-value pairs.
		645
		646	=cut
		647
		648	sub datalog($@) {
		649	my ($type, %kv) = @_;
		650	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
351	}	651	}
352		652
353	=back	653	=back
354		654
355	=cut	655	=cut
356
357	#############################################################################
358
359	package cf::path;
360
361	sub new {
362	my ($class, $path, $base) = @_;
363
364	$path = $path->as_string if ref $path;
365
366	my $self = bless { }, $class;
367
368	# {... are special paths that are not touched
369	# ?xxx/... are special absolute paths
370	# ?random/... random maps
371	# /! non-realised random map exit
372	# /... normal maps
373	# ~/... per-player maps without a specific player (DO NOT USE)
374	# ~user/... per-player map of a specific user
375
376	if ($path =~ /^{/) {
377	# fine as it is
378	} elsif ($path =~ s{^\?random/}{}) {
379	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
380	$self->{random} = cf::from_json $data;
381	} else {
382	if ($path =~ s{^~([^/]+)?}{}) {
383	$self->{user_rel} = 1;
384
385	if (defined $1) {
386	$self->{user} = $1;
387	} elsif ($base =~ m{^~([^/]+)/}) {
388	$self->{user} = $1;
389	} else {
390	warn "cannot resolve user-relative path without user <$path,$base>\n";
391	}
392	} elsif ($path =~ /^\//) {
393	# already absolute
394	} else {
395	$base =~ s{[^/]+/?$}{};
396	return $class->new ("$base/$path");
397	}
398
399	for ($path) {
400	redo if s{/\.?/}{/};
401	redo if s{/[^/]+/\.\./}{/};
402	}
403	}
404
405	$self->{path} = $path;
406
407	$self
408	}
409
410	# the name / primary key / in-game path
411	sub as_string {
412	my ($self) = @_;
413
414	$self->{user_rel} ? "~$self->{user}$self->{path}"
415	: $self->{random} ? "?random/$self->{path}"
416	: $self->{path}
417	}
418
419	# the displayed name, this is a one way mapping
420	sub visible_name {
421	my ($self) = @_;
422
423	# if (my $rmp = $self->{random}) {
424	# # todo: be more intelligent about this
425	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
426	# } else {
427	$self->as_string
428	# }
429	}
430
431	# escape the /'s in the path
432	sub _escaped_path {
433	# ∕ is U+2215
434	(my $path = $_[0]{path}) =~ s/\//∕/g;
435	$path
436	}
437
438	# the original (read-only) location
439	sub load_path {
440	my ($self) = @_;
441
442	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
443	}
444
445	# the temporary/swap location
446	sub save_path {
447	my ($self) = @_;
448
449	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
450	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
451	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
452	}
453
454	# the unique path, might be eq to save_path
455	sub uniq_path {
456	my ($self) = @_;
457
458	$self->{user_rel} || $self->{random}
459	? undef
460	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
461	}
462
463	# return random map parameters, or undef
464	sub random_map_params {
465	my ($self) = @_;
466
467	$self->{random}
468	}
469
470	# this is somewhat ugly, but style maps do need special treatment
471	sub is_style_map {
472	$_[0]{path} =~ m{^/styles/}
473	}
474
475	package cf;
476		656
477	#############################################################################	657	#############################################################################
478		658
479	=head2 ATTACHABLE OBJECTS	659	=head2 ATTACHABLE OBJECTS
480		660
…		…
482	attach callbacks/event handlers (a collection of which is called an "attachment")	662	attach callbacks/event handlers (a collection of which is called an "attachment")
483	to it. All such attachable objects support the following methods.	663	to it. All such attachable objects support the following methods.
484		664
485	In the following description, CLASS can be any of C<global>, C<object>	665	In the following description, CLASS can be any of C<global>, C<object>
486	C<player>, C<client> or C<map> (i.e. the attachable objects in	666	C<player>, C<client> or C<map> (i.e. the attachable objects in
487	crossfire+).	667	Crossfire TRT).
488		668
489	=over 4	669	=over 4
490		670
491	=item $attachable->attach ($attachment, key => $value...)	671	=item $attachable->attach ($attachment, key => $value...)
492		672
…		…
606	our @CB_TYPE = (); # registry for type (cf-object class) based events	786	our @CB_TYPE = (); # registry for type (cf-object class) based events
607	our @CB_MAP = ();	787	our @CB_MAP = ();
608		788
609	my %attachment;	789	my %attachment;
610		790
		791	sub cf::attachable::thawer_merge {
		792	# simply override everything except _meta
		793	local $_[0]{_meta};
		794	%{$_[0]} = %{$_[1]};
		795	}
		796
611	sub _attach_cb($$$$) {	797	sub _attach_cb($$$$) {
612	my ($registry, $event, $prio, $cb) = @_;	798	my ($registry, $event, $prio, $cb) = @_;
613		799
614	use sort 'stable';	800	use sort 'stable';
615		801
…		…
649	$registry = $CB_TYPE[$object_type] ||= [];	835	$registry = $CB_TYPE[$object_type] ||= [];
650		836
651	} elsif ($type eq "subtype") {	837	} elsif ($type eq "subtype") {
652	defined $object_type or Carp::croak "subtype specified without type";	838	defined $object_type or Carp::croak "subtype specified without type";
653	my $object_subtype = shift @arg;	839	my $object_subtype = shift @arg;
654	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	840	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
655		841
656	} elsif ($type eq "package") {	842	} elsif ($type eq "package") {
657	my $pkg = shift @arg;	843	my $pkg = shift @arg;
658		844
659	while (my ($name, $id) = each %cb_id) {	845	while (my ($name, $id) = each %cb_id) {
…		…
688	_attach $registry, $klass, @attach;	874	_attach $registry, $klass, @attach;
689	}	875	}
690		876
691	$obj->{$name} = \%arg;	877	$obj->{$name} = \%arg;
692	} else {	878	} else {
693	warn "object uses attachment '$name' that is not available, postponing.\n";	879	warn "object uses attachment '$name' which is not available, postponing.\n";
694	}	880	}
695		881
696	$obj->{_attachment}{$name} = undef;	882	$obj->{_attachment}{$name} = undef;
697	}	883	}
698		884
…		…
700	if (ref $_[0]) {	886	if (ref $_[0]) {
701	_object_attach @_;	887	_object_attach @_;
702	} else {	888	} else {
703	_attach shift->_attach_registry, @_;	889	_attach shift->_attach_registry, @_;
704	}	890	}
		891	_recalc_want;
705	};	892	};
706		893
707	# all those should be optimised	894	# all those should be optimised
708	sub cf::attachable::detach {	895	sub cf::attachable::detach {
709	my ($obj, $name) = @_;	896	my ($obj, $name) = @_;
…		…
712	delete $obj->{_attachment}{$name};	899	delete $obj->{_attachment}{$name};
713	reattach ($obj);	900	reattach ($obj);
714	} else {	901	} else {
715	Carp::croak "cannot, currently, detach class attachments";	902	Carp::croak "cannot, currently, detach class attachments";
716	}	903	}
		904	_recalc_want;
717	};	905	};
718		906
719	sub cf::attachable::attached {	907	sub cf::attachable::attached {
720	my ($obj, $name) = @_;	908	my ($obj, $name) = @_;
721		909
…		…
736	";	924	";
737	die if $@;	925	die if $@;
738	}	926	}
739		927
740	our $override;	928	our $override;
741	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	929	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
742		930
743	sub override {	931	sub override {
744	$override = 1;	932	$override = 1;
745	@invoke_results = ();	933	@INVOKE_RESULTS = (@_);
746	}	934	}
747		935
748	sub do_invoke {	936	sub do_invoke {
749	my $event = shift;	937	my $event = shift;
750	my $callbacks = shift;	938	my $callbacks = shift;
751		939
752	@invoke_results = ();	940	@INVOKE_RESULTS = ();
753		941
754	local $override;	942	local $override;
755		943
756	for (@$callbacks) {	944	for (@$callbacks) {
757	eval { &{$_->[1]} };	945	eval { &{$_->[1]} };
…		…
774		962
775	Generate an object-specific event with the given arguments.	963	Generate an object-specific event with the given arguments.
776		964
777	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	965	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
778	removed in future versions), and there is no public API to access override	966	removed in future versions), and there is no public API to access override
779	results (if you must, access C<@cf::invoke_results> directly).	967	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
780		968
781	=back	969	=back
782		970
783	=cut	971	=cut
784		972
785	#############################################################################	973	#############################################################################
786	# object support	974	# object support
		975
		976	sub _object_equal($$);
		977	sub _object_equal($$) {
		978	my ($a, $b) = @_;
		979
		980	return 0 unless (ref $a) eq (ref $b);
		981
		982	if ("HASH" eq ref $a) {
		983	my @ka = keys %$a;
		984	my @kb = keys %$b;
		985
		986	return 0 if @ka != @kb;
		987
		988	for (0 .. $#ka) {
		989	return 0 unless $ka[$_] eq $kb[$_];
		990	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		991	}
		992
		993	} elsif ("ARRAY" eq ref $a) {
		994
		995	return 0 if @$a != @$b;
		996
		997	for (0 .. $#$a) {
		998	return 0 unless _object_equal $a->[$_], $b->[$_];
		999	}
		1000
		1001	} elsif ($a ne $b) {
		1002	return 0;
		1003	}
		1004
		1005	1
		1006	}
		1007
		1008	our $SLOW_MERGES;#d#
		1009	sub _can_merge {
		1010	my ($ob1, $ob2) = @_;
		1011
		1012	++$SLOW_MERGES;#d#
		1013
		1014	# we do the slow way here
		1015	return _object_equal $ob1, $ob2
		1016	}
787		1017
788	sub reattach {	1018	sub reattach {
789	# basically do the same as instantiate, without calling instantiate	1019	# basically do the same as instantiate, without calling instantiate
790	my ($obj) = @_;	1020	my ($obj) = @_;
		1021
		1022	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
791		1023
792	my $registry = $obj->registry;	1024	my $registry = $obj->registry;
793		1025
794	@$registry = ();	1026	@$registry = ();
795		1027
…		…
836	sub object_freezer_save {	1068	sub object_freezer_save {
837	my ($filename, $rdata, $objs) = @_;	1069	my ($filename, $rdata, $objs) = @_;
838		1070
839	sync_job {	1071	sync_job {
840	if (length $$rdata) {	1072	if (length $$rdata) {
		1073	utf8::decode (my $decname = $filename);
841	warn sprintf "saving %s (%d,%d)\n",	1074	warn sprintf "saving %s (%d,%d)\n",
842	$filename, length $$rdata, scalar @$objs;	1075	$decname, length $$rdata, scalar @$objs;
843		1076
844	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1077	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
845	chmod SAVE_MODE, $fh;	1078	chmod SAVE_MODE, $fh;
846	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1079	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
847	aio_fsync $fh;	1080	aio_fsync $fh if $cf::USE_FSYNC;
848	close $fh;	1081	close $fh;
849		1082
850	if (@$objs) {	1083	if (@$objs) {
851	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1084	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	1085	chmod SAVE_MODE, $fh;
853	my $data = Storable::nfreeze { version => 1, objs => $objs };	1086	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
854	aio_write $fh, 0, (length $data), $data, 0;	1087	aio_write $fh, 0, (length $data), $data, 0;
855	aio_fsync $fh;	1088	aio_fsync $fh if $cf::USE_FSYNC;
856	close $fh;	1089	close $fh;
857	aio_rename "$filename.pst~", "$filename.pst";	1090	aio_rename "$filename.pst~", "$filename.pst";
858	}	1091	}
859	} else {	1092	} else {
860	aio_unlink "$filename.pst";	1093	aio_unlink "$filename.pst";
…		…
866	}	1099	}
867	} else {	1100	} else {
868	aio_unlink $filename;	1101	aio_unlink $filename;
869	aio_unlink "$filename.pst";	1102	aio_unlink "$filename.pst";
870	}	1103	}
871	}	1104	};
872	}	1105	}
873		1106
874	sub object_freezer_as_string {	1107	sub object_freezer_as_string {
875	my ($rdata, $objs) = @_;	1108	my ($rdata, $objs) = @_;
876		1109
…		…
888	or return;	1121	or return;
889		1122
890	unless (aio_stat "$filename.pst") {	1123	unless (aio_stat "$filename.pst") {
891	(aio_load "$filename.pst", $av) >= 0	1124	(aio_load "$filename.pst", $av) >= 0
892	or return;	1125	or return;
		1126
893	$av = eval { (Storable::thaw $av)->{objs} };	1127	my $st = eval { Coro::Storable::thaw $av };
		1128	$av = $st->{objs};
894	}	1129	}
895		1130
		1131	utf8::decode (my $decname = $filename);
896	warn sprintf "loading %s (%d)\n",	1132	warn sprintf "loading %s (%d,%d)\n",
897	$filename, length $data, scalar @{$av || []};#d#	1133	$decname, length $data, scalar @{$av || []};
		1134
898	return ($data, $av);	1135	($data, $av)
899	}	1136	}
		1137
		1138	=head2 COMMAND CALLBACKS
		1139
		1140	=over 4
		1141
		1142	=cut
900		1143
901	#############################################################################	1144	#############################################################################
902	# command handling &c	1145	# command handling &c
903		1146
904	=item cf::register_command $name => \&callback($ob,$args);	1147	=item cf::register_command $name => \&callback($ob,$args);
…		…
917	push @{ $COMMAND{$name} }, [$caller, $cb];	1160	push @{ $COMMAND{$name} }, [$caller, $cb];
918	}	1161	}
919		1162
920	=item cf::register_extcmd $name => \&callback($pl,$packet);	1163	=item cf::register_extcmd $name => \&callback($pl,$packet);
921		1164
922	Register a callbackf ro execution when the client sends an extcmd packet.	1165	Register a callback for execution when the client sends an (synchronous)
		1166	extcmd packet. Ext commands will be processed in the order they are
		1167	received by the server, like other user commands. The first argument is
		1168	the logged-in player. Ext commands can only be processed after a player
		1169	has logged in successfully.
923		1170
924	If the callback returns something, it is sent back as if reply was being	1171	If the callback returns something, it is sent back as if reply was being
925	called.	1172	called.
926		1173
		1174	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1175
		1176	Register a callback for execution when the client sends an (asynchronous)
		1177	exticmd packet. Exti commands are processed by the server as soon as they
		1178	are received, i.e. out of order w.r.t. other commands. The first argument
		1179	is a client socket. Exti commands can be received anytime, even before
		1180	log-in.
		1181
		1182	If the callback returns something, it is sent back as if reply was being
		1183	called.
		1184
927	=cut	1185	=cut
928		1186
929	sub register_extcmd {	1187	sub register_extcmd {
930	my ($name, $cb) = @_;	1188	my ($name, $cb) = @_;
931		1189
932	my $caller = caller;
933	#warn "registering extcmd '$name' to '$caller'";
934
935	$EXTCMD{$name} = [$cb, $caller];	1190	$EXTCMD{$name} = $cb;
		1191	}
		1192
		1193	sub register_exticmd {
		1194	my ($name, $cb) = @_;
		1195
		1196	$EXTICMD{$name} = $cb;
936	}	1197	}
937		1198
938	cf::player->attach (	1199	cf::player->attach (
939	on_command => sub {	1200	on_command => sub {
940	my ($pl, $name, $params) = @_;	1201	my ($pl, $name, $params) = @_;
…		…
949	cf::override;	1210	cf::override;
950	},	1211	},
951	on_extcmd => sub {	1212	on_extcmd => sub {
952	my ($pl, $buf) = @_;	1213	my ($pl, $buf) = @_;
953		1214
954	my $msg = eval { from_json $buf };	1215	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
955		1216
956	if (ref $msg) {	1217	if (ref $msg) {
		1218	my ($type, $reply, @payload) =
		1219	"ARRAY" eq ref $msg
		1220	? @$msg
		1221	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1222
		1223	my @reply;
		1224
957	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1225	if (my $cb = $EXTCMD{$type}) {
958	if (my %reply = $cb->[0]->($pl, $msg)) {	1226	@reply = $cb->($pl, @payload);
959	$pl->ext_reply ($msg->{msgid}, %reply);
960	}
961	}	1227	}
		1228
		1229	$pl->ext_reply ($reply, @reply)
		1230	if $reply;
		1231
962	} else {	1232	} else {
963	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1233	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
964	}	1234	}
965		1235
966	cf::override;	1236	cf::override;
967	},	1237	},
968	);	1238	);
969		1239
970	sub register {
971	my ($base, $pkg) = @_;
972
973	#TODO
974	}
975
976	sub load_extension {	1240	sub load_extensions {
		1241	cf::sync_job {
		1242	my %todo;
		1243
		1244	for my $path (<$LIBDIR/*.ext>) {
		1245	next unless -r $path;
		1246
		1247	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1248	my $base = $1;
		1249	my $pkg = $1;
		1250	$pkg =~ s/[^[:word:]]/_/g;
		1251	$pkg = "ext::$pkg";
		1252
		1253	open my $fh, "<:utf8", $path
		1254	or die "$path: $!";
		1255
		1256	my $source = do { local $/; <$fh> };
		1257
		1258	my %ext = (
		1259	path => $path,
		1260	base => $base,
		1261	pkg => $pkg,
		1262	);
		1263
		1264	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1265	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1266
		1267	$ext{source} =
		1268	"package $pkg; use strict; use utf8;\n"
		1269	. "#line 1 \"$path\"\n{\n"
		1270	. $source
		1271	. "\n};\n1";
		1272
		1273	$todo{$base} = \%ext;
		1274	}
		1275
		1276	my %done;
		1277	while (%todo) {
		1278	my $progress;
		1279
		1280	while (my ($k, $v) = each %todo) {
		1281	for (split /,\s*/, $v->{meta}{depends}) {
		1282	goto skip
		1283	unless exists $done{$_};
		1284	}
		1285
		1286	warn "... loading '$k' into '$v->{pkg}'\n";
		1287
		1288	unless (eval $v->{source}) {
		1289	my $msg = $@ ? "$v->{path}: $@\n"
		1290	: "$v->{base}: extension inactive.\n";
		1291
		1292	if (exists $v->{meta}{mandatory}) {
		1293	warn $msg;
		1294	warn "mandatory extension failed to load, exiting.\n";
		1295	exit 1;
		1296	}
		1297
		1298	warn $msg;
		1299	}
		1300
		1301	$done{$k} = delete $todo{$k};
		1302	push @EXTS, $v->{pkg};
		1303	$progress = 1;
		1304	}
		1305
		1306	skip:
		1307	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1308	unless $progress;
		1309	}
		1310	};
		1311	}
		1312
		1313	#############################################################################
		1314
		1315	=back
		1316
		1317	=head2 CORE EXTENSIONS
		1318
		1319	Functions and methods that extend core crossfire objects.
		1320
		1321	=cut
		1322
		1323	package cf::player;
		1324
		1325	use Coro::AIO;
		1326
		1327	=head3 cf::player
		1328
		1329	=over 4
		1330
		1331	=item cf::player::num_playing
		1332
		1333	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1334
		1335	=cut
		1336
		1337	sub num_playing {
		1338	scalar grep
		1339	$_->ob->map
		1340	&& !$_->hidden
		1341	&& !$_->ob->flag (cf::FLAG_WIZ),
		1342	cf::player::list
		1343	}
		1344
		1345	=item cf::player::find $login
		1346
		1347	Returns the given player object, loading it if necessary (might block).
		1348
		1349	=cut
		1350
		1351	sub playerdir($) {
		1352	"$PLAYERDIR/"
		1353	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1354	}
		1355
		1356	sub path($) {
		1357	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1358
		1359	(playerdir $login) . "/playerdata"
		1360	}
		1361
		1362	sub find_active($) {
		1363	$cf::PLAYER{$_[0]}
		1364	and $cf::PLAYER{$_[0]}->active
		1365	and $cf::PLAYER{$_[0]}
		1366	}
		1367
		1368	sub exists($) {
		1369	my ($login) = @_;
		1370
		1371	$cf::PLAYER{$login}
		1372	or cf::sync_job { !aio_stat path $login }
		1373	}
		1374
		1375	sub find($) {
		1376	return $cf::PLAYER{$_[0]} || do {
		1377	my $login = $_[0];
		1378
		1379	my $guard = cf::lock_acquire "user_find:$login";
		1380
		1381	$cf::PLAYER{$_[0]} || do {
		1382	# rename old playerfiles to new ones
		1383	#TODO: remove when no longer required
		1384	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1385	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1386	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1387	aio_unlink +(playerdir $login) . "/$login.pl";
		1388
		1389	my $f = new_from_file cf::object::thawer path $login
		1390	or return;
		1391
		1392	my $pl = cf::player::load_pl $f
		1393	or return;
		1394	local $cf::PLAYER_LOADING{$login} = $pl;
		1395	$f->resolve_delayed_derefs;
		1396	$cf::PLAYER{$login} = $pl
		1397	}
		1398	}
		1399	}
		1400
		1401	sub save($) {
		1402	my ($pl) = @_;
		1403
		1404	return if $pl->{deny_save};
		1405
		1406	my $path = path $pl;
		1407	my $guard = cf::lock_acquire "user_save:$path";
		1408
		1409	return if $pl->{deny_save};
		1410
		1411	aio_mkdir playerdir $pl, 0770;
		1412	$pl->{last_save} = $cf::RUNTIME;
		1413
		1414	$pl->save_pl ($path);
		1415	cf::cede_to_tick;
		1416	}
		1417
		1418	sub new($) {
		1419	my ($login) = @_;
		1420
		1421	my $self = create;
		1422
		1423	$self->ob->name ($login);
		1424	$self->{deny_save} = 1;
		1425
		1426	$cf::PLAYER{$login} = $self;
		1427
		1428	$self
		1429	}
		1430
		1431	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1432
		1433	=cut
		1434
		1435	sub send_msg {
		1436	my $ns = shift->ns
		1437	or return;
		1438	$ns->send_msg (@_);
		1439	}
		1440
		1441	=item $pl->quit_character
		1442
		1443	Nukes the player without looking back. If logged in, the connection will
		1444	be destroyed. May block for a long time.
		1445
		1446	=cut
		1447
		1448	sub quit_character {
		1449	my ($pl) = @_;
		1450
		1451	my $name = $pl->ob->name;
		1452
		1453	$pl->{deny_save} = 1;
		1454	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1455
		1456	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1457	$pl->deactivate;
		1458	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1459	$pl->ns->destroy if $pl->ns;
		1460
		1461	my $path = playerdir $pl;
		1462	my $temp = "$path~$cf::RUNTIME~deleting~";
		1463	aio_rename $path, $temp;
		1464	delete $cf::PLAYER{$pl->ob->name};
		1465	$pl->destroy;
		1466
		1467	my $prefix = qr<^~\Q$name\E/>;
		1468
		1469	# nuke player maps
		1470	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1471
		1472	IO::AIO::aio_rmtree $temp;
		1473	}
		1474
		1475	=item $pl->kick
		1476
		1477	Kicks a player out of the game. This destroys the connection.
		1478
		1479	=cut
		1480
		1481	sub kick {
		1482	my ($pl, $kicker) = @_;
		1483
		1484	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1485	$pl->killer ("kicked");
		1486	$pl->ns->destroy;
		1487	}
		1488
		1489	=item cf::player::list_logins
		1490
		1491	Returns am arrayref of all valid playernames in the system, can take a
		1492	while and may block, so not sync_job-capable, ever.
		1493
		1494	=cut
		1495
		1496	sub list_logins {
		1497	my $dirs = aio_readdir $PLAYERDIR
		1498	or return [];
		1499
		1500	my @logins;
		1501
		1502	for my $login (@$dirs) {
		1503	my $path = path $login;
		1504
		1505	# a .pst is a dead give-away for a valid player
		1506	unless (-e "$path.pst") {
		1507	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1508	aio_read $fh, 0, 512, my $buf, 0 or next;
		1509	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1510	}
		1511
		1512	utf8::decode $login;
		1513	push @logins, $login;
		1514	}
		1515
		1516	\@logins
		1517	}
		1518
		1519	=item $player->maps
		1520
		1521	Returns an arrayref of map paths that are private for this
		1522	player. May block.
		1523
		1524	=cut
		1525
		1526	sub maps($) {
		1527	my ($pl) = @_;
		1528
		1529	$pl = ref $pl ? $pl->ob->name : $pl;
		1530
		1531	my $files = aio_readdir playerdir $pl
		1532	or return;
		1533
		1534	my @paths;
		1535
		1536	for (@$files) {
		1537	utf8::decode $_;
		1538	next if /\.(?:pl|pst)$/;
		1539	next unless /^$PATH_SEP/o;
		1540
		1541	push @paths, cf::map::normalise "~$pl/$_";
		1542	}
		1543
		1544	\@paths
		1545	}
		1546
		1547	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1548
		1549	Expand crossfire pod fragments into protocol xml.
		1550
		1551	=cut
		1552
		1553	sub expand_cfpod {
		1554	((my $self), (local $_)) = @_;
		1555
		1556	# escape & and <
		1557	s/&/&amp;/g;
		1558	s/(?<![BIUGHT])</&lt;/g;
		1559
		1560	# this is buggy, it needs to properly take care of nested <'s
		1561
		1562	1 while
		1563	# replace B<>, I<>, U<> etc.
		1564	s/B<([^\>]*)>/<b>$1<\/b>/
		1565	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1566	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1567	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1568	# replace G<male|female> tags
		1569	|| s{G<([^>|]*)\|([^>]*)>}{
		1570	$self->gender ? $2 : $1
		1571	}ge
		1572	# replace H<hint text>
		1573	|| s{H<([^\>]*)>}
		1574	{
		1575	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1576	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1577	"")
		1578	[$self->{hintmode}]
		1579	}ge;
		1580
		1581	# create single paragraphs (very hackish)
		1582	s/(?<=\S)\n(?=\w)/ /g;
		1583
		1584	# compress some whitespace
		1585	s/\s+\n/\n/g; # ws line-ends
		1586	s/\n\n+/\n/g; # double lines
		1587	s/^\n+//; # beginning lines
		1588	s/\n+$//; # ending lines
		1589
		1590	$_
		1591	}
		1592
		1593	sub hintmode {
		1594	$_[0]{hintmode} = $_[1] if @_ > 1;
		1595	$_[0]{hintmode}
		1596	}
		1597
		1598	=item $player->ext_reply ($msgid, @msg)
		1599
		1600	Sends an ext reply to the player.
		1601
		1602	=cut
		1603
		1604	sub ext_reply($$@) {
		1605	my ($self, $id, @msg) = @_;
		1606
		1607	$self->ns->ext_reply ($id, @msg)
		1608	}
		1609
		1610	=item $player->ext_msg ($type, @msg)
		1611
		1612	Sends an ext event to the client.
		1613
		1614	=cut
		1615
		1616	sub ext_msg($$@) {
		1617	my ($self, $type, @msg) = @_;
		1618
		1619	$self->ns->ext_msg ($type, @msg);
		1620	}
		1621
		1622	=head3 cf::region
		1623
		1624	=over 4
		1625
		1626	=cut
		1627
		1628	package cf::region;
		1629
		1630	=item cf::region::find_by_path $path
		1631
		1632	Tries to decuce the likely region for a map knowing only its path.
		1633
		1634	=cut
		1635
		1636	sub find_by_path($) {
977	my ($path) = @_;	1637	my ($path) = @_;
978		1638
979	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1639	my ($match, $specificity);
980	my $base = $1;
981	my $pkg = $1;
982	$pkg =~ s/[^[:word:]]/_/g;
983	$pkg = "ext::$pkg";
984		1640
985	warn "loading '$path' into '$pkg'\n";	1641	for my $region (list) {
986		1642	if ($region->{match} && $path =~ $region->{match}) {
987	open my $fh, "<:utf8", $path	1643	($match, $specificity) = ($region, $region->specificity)
988	or die "$path: $!";	1644	if $region->specificity > $specificity;
989		1645	}
990	my $source =
991	"package $pkg; use strict; use utf8;\n"
992	. "#line 1 \"$path\"\n{\n"
993	. (do { local $/; <$fh> })
994	. "\n};\n1";
995
996	eval $source
997	or die $@ ? "$path: $@\n"
998	: "extension disabled.\n";
999
1000	push @exts, $pkg;
1001	$ext_pkg{$base} = $pkg;
1002
1003	# no strict 'refs';
1004	# @{"$pkg\::ISA"} = ext::;
1005
1006	register $base, $pkg;
1007	}
1008
1009	sub unload_extension {
1010	my ($pkg) = @_;
1011
1012	warn "removing extension $pkg\n";
1013
1014	# remove hooks
1015	#TODO
1016	# for my $idx (0 .. $#PLUGIN_EVENT) {
1017	# delete $hook[$idx]{$pkg};
1018	# }	1646	}
1019		1647
1020	# remove commands	1648	$match
1021	for my $name (keys %COMMAND) {
1022	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1023
1024	if (@cb) {
1025	$COMMAND{$name} = \@cb;
1026	} else {
1027	delete $COMMAND{$name};
1028	}
1029	}
1030
1031	# remove extcmds
1032	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1033	delete $EXTCMD{$name};
1034	}
1035
1036	if (my $cb = $pkg->can ("unload")) {
1037	eval {
1038	$cb->($pkg);
1039	1
1040	} or warn "$pkg unloaded, but with errors: $@";
1041	}
1042
1043	Symbol::delete_package $pkg;
1044	}
1045
1046	sub load_extensions {
1047	for my $ext (<$LIBDIR/*.ext>) {
1048	next unless -r $ext;
1049	eval {
1050	load_extension $ext;
1051	1
1052	} or warn "$ext not loaded: $@";
1053	}
1054	}
1055
1056	#############################################################################
1057	# load/save/clean perl data associated with a map
1058
1059	*cf::mapsupport::on_clean = sub {
1060	my ($map) = @_;
1061
1062	my $path = $map->tmpname;
1063	defined $path or return;
1064
1065	unlink "$path.pst";
1066	};
1067
1068	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1069
1070	#############################################################################
1071	# load/save perl data associated with player->ob objects
1072
1073	sub all_objects(@) {
1074	@_, map all_objects ($_->inv), @_
1075	}
1076
1077	# TODO: compatibility cruft, remove when no longer needed
1078	cf::player->attach (
1079	on_load => sub {
1080	my ($pl, $path) = @_;
1081
1082	for my $o (all_objects $pl->ob) {
1083	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1084	$o->set_ob_key_value ("_perl_data");
1085
1086	%$o = %{ Storable::thaw pack "H*", $value };
1087	}
1088	}
1089	},
1090	);
1091
1092	#############################################################################
1093
1094	=head2 CORE EXTENSIONS
1095
1096	Functions and methods that extend core crossfire objects.
1097
1098	=head3 cf::player
1099
1100	=over 4
1101
1102	=item cf::player::exists $login
1103
1104	Returns true when the given account exists.
1105
1106	=cut
1107
1108	sub cf::player::exists($) {
1109	cf::player::find $_[0]
1110	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1111	}
1112
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)
1114
1115	Sends an ext reply to the player.
1116
1117	=cut
1118
1119	sub cf::player::ext_reply($$$%) {
1120	my ($self, $id, %msg) = @_;
1121
1122	$msg{msgid} = $id;
1123
1124	$self->send ("ext " . to_json \%msg);
1125	}	1649	}
1126		1650
1127	=back	1651	=back
1128
1129		1652
1130	=head3 cf::map	1653	=head3 cf::map
1131		1654
1132	=over 4	1655	=over 4
1133		1656
…		…
1136	package cf::map;	1659	package cf::map;
1137		1660
1138	use Fcntl;	1661	use Fcntl;
1139	use Coro::AIO;	1662	use Coro::AIO;
1140		1663
		1664	use overload
		1665	'""' => \&as_string,
		1666	fallback => 1;
		1667
1141	our $MAX_RESET = 7200;	1668	our $MAX_RESET = 3600;
1142	our $DEFAULT_RESET = 3600;	1669	our $DEFAULT_RESET = 3000;
1143		1670
1144	sub generate_random_map {	1671	sub generate_random_map {
1145	my ($path, $rmp) = @_;	1672	my ($self, $rmp) = @_;
1146
1147	# mit "rum" bekleckern, nicht	1673	# mit "rum" bekleckern, nicht
1148	cf::map::_create_random_map	1674	$self->_create_random_map (
1149	$path,
1150	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1675	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1151	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1676	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1152	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1677	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1153	$rmp->{exit_on_final_map},	1678	$rmp->{exit_on_final_map},
1154	$rmp->{xsize}, $rmp->{ysize},	1679	$rmp->{xsize}, $rmp->{ysize},
1155	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1680	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1156	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1681	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1157	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1682	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1158	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1683	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1159	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1684	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1160	(cf::region::find $rmp->{region})	1685	(cf::region::find $rmp->{region}), $rmp->{custom}
		1686	)
		1687	}
		1688
		1689	=item cf::map->register ($regex, $prio)
		1690
		1691	Register a handler for the map path matching the given regex at the
		1692	givne priority (higher is better, built-in handlers have priority 0, the
		1693	default).
		1694
		1695	=cut
		1696
		1697	sub register {
		1698	my (undef, $regex, $prio) = @_;
		1699	my $pkg = caller;
		1700
		1701	no strict;
		1702	push @{"$pkg\::ISA"}, __PACKAGE__;
		1703
		1704	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1705	}
		1706
		1707	# also paths starting with '/'
		1708	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1709
		1710	sub thawer_merge {
		1711	my ($self, $merge) = @_;
		1712
		1713	# we have to keep some variables in memory intact
		1714	local $self->{path};
		1715	local $self->{load_path};
		1716
		1717	$self->SUPER::thawer_merge ($merge);
		1718	}
		1719
		1720	sub normalise {
		1721	my ($path, $base) = @_;
		1722
		1723	$path = "$path"; # make sure its a string
		1724
		1725	$path =~ s/\.map$//;
		1726
		1727	# map plan:
		1728	#
		1729	# /! non-realised random map exit (special hack!)
		1730	# {... are special paths that are not being touched
		1731	# ?xxx/... are special absolute paths
		1732	# ?random/... random maps
		1733	# /... normal maps
		1734	# ~user/... per-player map of a specific user
		1735
		1736	$path =~ s/$PATH_SEP/\//go;
		1737
		1738	# treat it as relative path if it starts with
		1739	# something that looks reasonable
		1740	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1741	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1742
		1743	$base =~ s{[^/]+/?$}{};
		1744	$path = "$base/$path";
		1745	}
		1746
		1747	for ($path) {
		1748	redo if s{//}{/};
		1749	redo if s{/\.?/}{/};
		1750	redo if s{/[^/]+/\.\./}{/};
		1751	}
		1752
		1753	$path
		1754	}
		1755
		1756	sub new_from_path {
		1757	my (undef, $path, $base) = @_;
		1758
		1759	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1760
		1761	$path = normalise $path, $base;
		1762
		1763	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1764	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1765	my $self = bless cf::map::new, $pkg;
		1766	$self->{path} = $path; $self->path ($path);
		1767	$self->init; # pass $1 etc.
		1768	return $self;
		1769	}
		1770	}
		1771
		1772	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1773	()
		1774	}
		1775
		1776	sub init {
		1777	my ($self) = @_;
		1778
		1779	$self
		1780	}
		1781
		1782	sub as_string {
		1783	my ($self) = @_;
		1784
		1785	"$self->{path}"
		1786	}
		1787
		1788	# the displayed name, this is a one way mapping
		1789	sub visible_name {
		1790	&as_string
		1791	}
		1792
		1793	# the original (read-only) location
		1794	sub load_path {
		1795	my ($self) = @_;
		1796
		1797	"$MAPDIR/$self->{path}.map"
		1798	}
		1799
		1800	# the temporary/swap location
		1801	sub save_path {
		1802	my ($self) = @_;
		1803
		1804	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1805	"$TMPDIR/$path.map"
		1806	}
		1807
		1808	# the unique path, undef == no special unique path
		1809	sub uniq_path {
		1810	my ($self) = @_;
		1811
		1812	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1813	"$UNIQUEDIR/$path"
1161	}	1814	}
1162		1815
1163	# and all this just because we cannot iterate over	1816	# and all this just because we cannot iterate over
1164	# all maps in C++...	1817	# all maps in C++...
1165	sub change_all_map_light {	1818	sub change_all_map_light {
…		…
1167		1820
1168	$_->change_map_light ($change)	1821	$_->change_map_light ($change)
1169	for grep $_->outdoor, values %cf::MAP;	1822	for grep $_->outdoor, values %cf::MAP;
1170	}	1823	}
1171		1824
		1825	sub decay_objects {
		1826	my ($self) = @_;
		1827
		1828	return if $self->{deny_reset};
		1829
		1830	$self->do_decay_objects;
		1831	}
		1832
		1833	sub unlink_save {
		1834	my ($self) = @_;
		1835
		1836	utf8::encode (my $save = $self->save_path);
		1837	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1838	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1839	}
		1840
1172	sub try_load_header($) {	1841	sub load_header_from($) {
1173	my ($path) = @_;	1842	my ($self, $path) = @_;
1174		1843
1175	utf8::encode $path;	1844	utf8::encode $path;
1176	aio_open $path, O_RDONLY, 0	1845	my $f = new_from_file cf::object::thawer $path
1177	or return;	1846	or return;
1178		1847
1179	my $map = cf::map::new	1848	$self->_load_header ($f)
1180	or return;	1849	or return;
1181		1850
1182	$map->load_header ($path)	1851	local $MAP_LOADING{$self->{path}} = $self;
		1852	$f->resolve_delayed_derefs;
		1853
		1854	$self->{load_path} = $path;
		1855
		1856	1
		1857	}
		1858
		1859	sub load_header_orig {
		1860	my ($self) = @_;
		1861
		1862	$self->load_header_from ($self->load_path)
		1863	}
		1864
		1865	sub load_header_temp {
		1866	my ($self) = @_;
		1867
		1868	$self->load_header_from ($self->save_path)
		1869	}
		1870
		1871	sub prepare_temp {
		1872	my ($self) = @_;
		1873
		1874	$self->last_access ((delete $self->{last_access})
		1875	|| $cf::RUNTIME); #d#
		1876	# safety
		1877	$self->{instantiate_time} = $cf::RUNTIME
		1878	if $self->{instantiate_time} > $cf::RUNTIME;
		1879	}
		1880
		1881	sub prepare_orig {
		1882	my ($self) = @_;
		1883
		1884	$self->{load_original} = 1;
		1885	$self->{instantiate_time} = $cf::RUNTIME;
		1886	$self->last_access ($cf::RUNTIME);
		1887	$self->instantiate;
		1888	}
		1889
		1890	sub load_header {
		1891	my ($self) = @_;
		1892
		1893	if ($self->load_header_temp) {
		1894	$self->prepare_temp;
		1895	} else {
		1896	$self->load_header_orig
1183	or return;	1897	or return;
		1898	$self->prepare_orig;
		1899	}
1184		1900
1185	$map->{load_path} = $path;	1901	$self->{deny_reset} = 1
		1902	if $self->no_reset;
1186		1903
1187	$map	1904	$self->default_region (cf::region::find_by_path $self->{path})
1188	}	1905	unless $self->default_region;
1189		1906
		1907	1
		1908	}
		1909
1190	sub find_map;	1910	sub find;
1191	sub find_map {	1911	sub find {
1192	my ($path, $origin) = @_;	1912	my ($path, $origin) = @_;
1193		1913
1194	#warn "find_map<$path,$origin>\n";#d#
1195
1196	$path = new cf::path $path, $origin && $origin->path;	1914	$path = normalise $path, $origin && $origin->path;
1197	my $key = $path->as_string;
1198		1915
		1916	cf::lock_wait "map_data:$path";#d#remove
1199	cf::lock_wait "map_find:$key";	1917	cf::lock_wait "map_find:$path";
1200		1918
1201	$cf::MAP{$key} || do {	1919	$cf::MAP{$path} || do {
1202	my $guard = cf::lock_acquire "map_find:$key";	1920	my $guard1 = cf::lock_acquire "map_find:$path";
		1921	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1203		1922
1204	# do it the slow way	1923	my $map = new_from_path cf::map $path
1205	my $map = try_load_header $path->save_path;
1206
1207	if ($map) {
1208	# safety
1209	$map->{instantiate_time} = $cf::RUNTIME
1210	if $map->{instantiate_time} > $cf::RUNTIME;
1211	} else {
1212	if (my $rmp = $path->random_map_params) {
1213	$map = generate_random_map $key, $rmp;
1214	} else {
1215	$map = try_load_header $path->load_path;
1216	}
1217
1218	$map or return;	1924	or return;
1219		1925
1220	$map->{load_original} = 1;
1221	$map->{instantiate_time} = $cf::RUNTIME;
1222	$map->instantiate;
1223
1224	# per-player maps become, after loading, normal maps
1225	$map->per_player (0) if $path->{user_rel};
1226	}
1227
1228	$map->path ($key);
1229	$map->{path} = $path;
1230	$map->{last_save} = $cf::RUNTIME;	1926	$map->{last_save} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);
1232		1927
1233	if ($map->should_reset) {	1928	$map->load_header
		1929	or return;
		1930
		1931	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1932	# doing this can freeze the server in a sync job, obviously
		1933	#$cf::WAIT_FOR_TICK->wait;
		1934	undef $guard1;
		1935	undef $guard2;
1234	$map->reset;	1936	$map->reset;
1235	undef $guard;	1937	return find $path;
1236	$map = find_map $path
1237	or return;
1238	}	1938	}
1239		1939
1240	$cf::MAP{$key} = $map	1940	$cf::MAP{$path} = $map
1241	}	1941	}
1242	}	1942	}
		1943
		1944	sub pre_load { }
		1945	sub post_load { }
1243		1946
1244	sub load {	1947	sub load {
1245	my ($self) = @_;	1948	my ($self) = @_;
1246		1949
		1950	local $self->{deny_reset} = 1; # loading can take a long time
		1951
1247	my $path = $self->{path};	1952	my $path = $self->{path};
		1953
		1954	{
1248	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1955	my $guard = cf::lock_acquire "map_data:$path";
1249		1956
		1957	return unless $self->valid;
1250	return if $self->in_memory != cf::MAP_SWAPPED;	1958	return unless $self->in_memory == cf::MAP_SWAPPED;
1251		1959
1252	$self->in_memory (cf::MAP_LOADING);	1960	$self->in_memory (cf::MAP_LOADING);
1253		1961
1254	$self->alloc;	1962	$self->alloc;
1255	$self->load_objects ($self->{load_path}, 1)	1963
		1964	$self->pre_load;
		1965	cf::cede_to_tick;
		1966
		1967	my $f = new_from_file cf::object::thawer $self->{load_path};
		1968	$f->skip_block;
		1969	$self->_load_objects ($f)
1256	or return;	1970	or return;
1257		1971
1258	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1972	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1259	if delete $self->{load_original};	1973	if delete $self->{load_original};
1260		1974
1261	if (my $uniq = $path->uniq_path) {	1975	if (my $uniq = $self->uniq_path) {
1262	utf8::encode $uniq;	1976	utf8::encode $uniq;
1263	if (aio_open $uniq, O_RDONLY, 0) {	1977	unless (aio_stat $uniq) {
		1978	if (my $f = new_from_file cf::object::thawer $uniq) {
1264	$self->clear_unique_items;	1979	$self->clear_unique_items;
1265	$self->load_objects ($uniq, 0);	1980	$self->_load_objects ($f);
		1981	$f->resolve_delayed_derefs;
		1982	}
1266	}	1983	}
1267	}	1984	}
1268		1985
		1986	$f->resolve_delayed_derefs;
		1987
		1988	cf::cede_to_tick;
1269	# now do the right thing for maps	1989	# now do the right thing for maps
1270	$self->link_multipart_objects;	1990	$self->link_multipart_objects;
1271
1272	if ($self->{path}->is_style_map) {
1273	$self->{deny_save} = 1;
1274	$self->{deny_reset} = 1;
1275	} else {
1276	$self->fix_auto_apply;
1277	$self->decay_objects;
1278	$self->update_buttons;
1279	$self->set_darkness_map;
1280	$self->difficulty ($self->estimate_difficulty)	1991	$self->difficulty ($self->estimate_difficulty)
1281	unless $self->difficulty;	1992	unless $self->difficulty;
		1993	cf::cede_to_tick;
		1994
		1995	unless ($self->{deny_activate}) {
		1996	$self->decay_objects;
		1997	$self->fix_auto_apply;
		1998	$self->update_buttons;
		1999	cf::cede_to_tick;
		2000	$self->set_darkness_map;
		2001	cf::cede_to_tick;
1282	$self->activate;	2002	$self->activate;
1283	}	2003	}
1284		2004
		2005	$self->{last_save} = $cf::RUNTIME;
		2006	$self->last_access ($cf::RUNTIME);
		2007
1285	$self->in_memory (cf::MAP_IN_MEMORY);	2008	$self->in_memory (cf::MAP_IN_MEMORY);
1286	}	2009	}
1287		2010
1288	sub load_map_sync {	2011	$self->post_load;
		2012	}
		2013
		2014	sub customise_for {
		2015	my ($self, $ob) = @_;
		2016
		2017	return find "~" . $ob->name . "/" . $self->{path}
		2018	if $self->per_player;
		2019
		2020	# return find "?party/" . $ob->name . "/" . $self->{path}
		2021	# if $self->per_party;
		2022
		2023	$self
		2024	}
		2025
		2026	# find and load all maps in the 3x3 area around a map
		2027	sub load_neighbours {
		2028	my ($map) = @_;
		2029
		2030	my @neigh; # diagonal neighbours
		2031
		2032	for (0 .. 3) {
		2033	my $neigh = $map->tile_path ($_)
		2034	or next;
		2035	$neigh = find $neigh, $map
		2036	or next;
		2037	$neigh->load;
		2038
		2039	push @neigh,
		2040	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2041	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2042	}
		2043
		2044	for (grep defined $_->[0], @neigh) {
		2045	my ($path, $origin) = @$_;
		2046	my $neigh = find $path, $origin
		2047	or next;
		2048	$neigh->load;
		2049	}
		2050	}
		2051
		2052	sub find_sync {
1289	my ($path, $origin) = @_;	2053	my ($path, $origin) = @_;
1290		2054
1291	#warn "load_map_sync<$path, $origin>\n";#d#	2055	cf::sync_job { find $path, $origin }
		2056	}
1292		2057
1293	cf::sync_job {	2058	sub do_load_sync {
1294	my $map = cf::map::find_map $path, $origin	2059	my ($map) = @_;
1295	or return;	2060
1296	$map->load;	2061	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1297	$map	2062	if $Coro::current == $Coro::main;
		2063
		2064	cf::sync_job { $map->load };
		2065	}
		2066
		2067	our %MAP_PREFETCH;
		2068	our $MAP_PREFETCHER = undef;
		2069
		2070	sub find_async {
		2071	my ($path, $origin, $load) = @_;
		2072
		2073	$path = normalise $path, $origin && $origin->{path};
		2074
		2075	if (my $map = $cf::MAP{$path}) {
		2076	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2077	}
		2078
		2079	$MAP_PREFETCH{$path} |= $load;
		2080
		2081	$MAP_PREFETCHER ||= cf::async {
		2082	$Coro::current->{desc} = "map prefetcher";
		2083
		2084	while (%MAP_PREFETCH) {
		2085	while (my ($k, $v) = each %MAP_PREFETCH) {
		2086	if (my $map = find $k) {
		2087	$map->load if $v;
		2088	}
		2089
		2090	delete $MAP_PREFETCH{$k};
		2091	}
		2092	}
		2093	undef $MAP_PREFETCHER;
1298	}	2094	};
		2095	$MAP_PREFETCHER->prio (6);
		2096
		2097	()
1299	}	2098	}
1300		2099
1301	sub save {	2100	sub save {
1302	my ($self) = @_;	2101	my ($self) = @_;
1303		2102
		2103	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2104
1304	$self->{last_save} = $cf::RUNTIME;	2105	$self->{last_save} = $cf::RUNTIME;
1305		2106
1306	return unless $self->dirty;	2107	return unless $self->dirty;
1307		2108
1308	my $save = $self->{path}->save_path; utf8::encode $save;	2109	my $save = $self->save_path; utf8::encode $save;
1309	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2110	my $uniq = $self->uniq_path; utf8::encode $uniq;
1310		2111
1311	$self->{load_path} = $save;	2112	$self->{load_path} = $save;
1312		2113
1313	return if $self->{deny_save};	2114	return if $self->{deny_save};
1314		2115
		2116	local $self->{last_access} = $self->last_access;#d#
		2117
		2118	cf::async {
		2119	$Coro::current->{desc} = "map player save";
		2120	$_->contr->save for $self->players;
		2121	};
		2122
1315	if ($uniq) {	2123	if ($uniq) {
1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2124	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1317	$self->save_objects ($uniq, cf::IO_UNIQUES);	2125	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1318	} else {	2126	} else {
1319	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2127	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1320	}	2128	}
1321	}	2129	}
1322		2130
1323	sub swap_out {	2131	sub swap_out {
1324	my ($self) = @_;	2132	my ($self) = @_;
1325		2133
1326	# save first because save cedes	2134	# save first because save cedes
1327	$self->save;	2135	$self->save;
		2136
		2137	my $lock = cf::lock_acquire "map_data:$self->{path}";
1328		2138
1329	return if $self->players;	2139	return if $self->players;
1330	return if $self->in_memory != cf::MAP_IN_MEMORY;	2140	return if $self->in_memory != cf::MAP_IN_MEMORY;
1331	return if $self->{deny_save};	2141	return if $self->{deny_save};
1332		2142
		2143	$self->in_memory (cf::MAP_SWAPPED);
		2144
		2145	$self->deactivate;
		2146	$_->clear_links_to ($self) for values %cf::MAP;
1333	$self->clear;	2147	$self->clear;
1334	$self->in_memory (cf::MAP_SWAPPED);
1335	}	2148	}
1336		2149
1337	sub reset_at {	2150	sub reset_at {
1338	my ($self) = @_;	2151	my ($self) = @_;
1339		2152
1340	# TODO: safety, remove and allow resettable per-player maps	2153	# TODO: safety, remove and allow resettable per-player maps
1341	return 1e99 if $self->{path}{user_rel};
1342	return 1e99 if $self->{deny_reset};	2154	return 1e99 if $self->{deny_reset};
1343		2155
1344	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2156	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1345	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2157	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1346		2158
…		…
1351	my ($self) = @_;	2163	my ($self) = @_;
1352		2164
1353	$self->reset_at <= $cf::RUNTIME	2165	$self->reset_at <= $cf::RUNTIME
1354	}	2166	}
1355		2167
1356	sub unlink_save {
1357	my ($self) = @_;
1358
1359	utf8::encode (my $save = $self->{path}->save_path);
1360	aioreq_pri 3; IO::AIO::aio_unlink $save;
1361	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1362	}
1363
1364	sub rename {
1365	my ($self, $new_path) = @_;
1366
1367	$self->unlink_save;
1368
1369	delete $cf::MAP{$self->path};
1370	$self->{path} = new cf::path $new_path;
1371	$self->path ($self->{path}->as_string);
1372	$cf::MAP{$self->path} = $self;
1373
1374	$self->save;
1375	}
1376
1377	sub reset {	2168	sub reset {
1378	my ($self) = @_;	2169	my ($self) = @_;
1379		2170
		2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2172
1380	return if $self->players;	2173	return if $self->players;
1381	return if $self->{path}{user_rel};#d#
1382		2174
1383	warn "resetting map ", $self->path;#d#	2175	warn "resetting map ", $self->path;
		2176
		2177	$self->in_memory (cf::MAP_SWAPPED);
		2178
		2179	# need to save uniques path
		2180	unless ($self->{deny_save}) {
		2181	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2182
		2183	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2184	if $uniq;
		2185	}
1384		2186
1385	delete $cf::MAP{$self->path};	2187	delete $cf::MAP{$self->path};
1386		2188
		2189	$self->deactivate;
1387	$_->clear_links_to ($self) for values %cf::MAP;	2190	$_->clear_links_to ($self) for values %cf::MAP;
		2191	$self->clear;
1388		2192
1389	$self->unlink_save;	2193	$self->unlink_save;
1390	$self->destroy;	2194	$self->destroy;
1391	}	2195	}
1392		2196
1393	my $nuke_counter = "aaaa";	2197	my $nuke_counter = "aaaa";
1394		2198
1395	sub nuke {	2199	sub nuke {
1396	my ($self) = @_;	2200	my ($self) = @_;
1397		2201
		2202	{
		2203	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2204
		2205	delete $cf::MAP{$self->path};
		2206
		2207	$self->unlink_save;
		2208
		2209	bless $self, "cf::map";
		2210	delete $self->{deny_reset};
1398	$self->{deny_save} = 1;	2211	$self->{deny_save} = 1;
1399	$self->reset_timeout (1);	2212	$self->reset_timeout (1);
1400	$self->rename ("{nuke}/" . ($nuke_counter++));	2213	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2214
		2215	$cf::MAP{$self->path} = $self;
		2216	}
		2217
1401	$self->reset; # polite request, might not happen	2218	$self->reset; # polite request, might not happen
1402	}	2219	}
1403		2220
1404	sub customise_for {	2221	=item $maps = cf::map::tmp_maps
1405	my ($map, $ob) = @_;
1406		2222
1407	if ($map->per_player) {	2223	Returns an arrayref with all map paths of currently instantiated and saved
1408	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2224	maps. May block.
		2225
		2226	=cut
		2227
		2228	sub tmp_maps() {
1409	}	2229	[
1410		2230	map {
1411	$map	2231	utf8::decode $_;
		2232	/\.map$/
		2233	? normalise $_
		2234	: ()
		2235	} @{ aio_readdir $TMPDIR or [] }
		2236	]
1412	}	2237	}
1413		2238
1414	sub emergency_save {	2239	=item $maps = cf::map::random_maps
1415	local $cf::FREEZE = 1;
1416		2240
1417	warn "enter emergency map save\n";	2241	Returns an arrayref with all map paths of currently instantiated and saved
		2242	random maps. May block.
1418		2243
1419	cf::sync_job {	2244	=cut
1420	warn "begin emergency map save\n";
1421	$_->save for values %cf::MAP;
1422	};
1423		2245
1424	warn "end emergency map save\n";	2246	sub random_maps() {
		2247	[
		2248	map {
		2249	utf8::decode $_;
		2250	/\.map$/
		2251	? normalise "?random/$_"
		2252	: ()
		2253	} @{ aio_readdir $RANDOMDIR or [] }
		2254	]
		2255	}
		2256
		2257	=item cf::map::unique_maps
		2258
		2259	Returns an arrayref of paths of all shared maps that have
		2260	instantiated unique items. May block.
		2261
		2262	=cut
		2263
		2264	sub unique_maps() {
		2265	[
		2266	map {
		2267	utf8::decode $_;
		2268	/\.map$/
		2269	? normalise $_
		2270	: ()
		2271	} @{ aio_readdir $UNIQUEDIR or [] }
		2272	]
1425	}	2273	}
1426		2274
1427	package cf;	2275	package cf;
1428		2276
1429	=back	2277	=back
1430		2278
		2279	=head3 cf::object
		2280
		2281	=cut
		2282
		2283	package cf::object;
		2284
		2285	=over 4
		2286
		2287	=item $ob->inv_recursive
		2288
		2289	Returns the inventory of the object _and_ their inventories, recursively.
		2290
		2291	=cut
		2292
		2293	sub inv_recursive_;
		2294	sub inv_recursive_ {
		2295	map { $_, inv_recursive_ $_->inv } @_
		2296	}
		2297
		2298	sub inv_recursive {
		2299	inv_recursive_ inv $_[0]
		2300	}
		2301
		2302	=item $ref = $ob->ref
		2303
		2304	creates and returns a persistent reference to an objetc that can be stored as a string.
		2305
		2306	=item $ob = cf::object::deref ($refstring)
		2307
		2308	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2309	even if the object actually exists. May block.
		2310
		2311	=cut
		2312
		2313	sub deref {
		2314	my ($ref) = @_;
		2315
		2316	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2317	my ($uuid, $name) = ($1, $2);
		2318	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2319	or return;
		2320	$pl->ob->uuid eq $uuid
		2321	or return;
		2322
		2323	$pl->ob
		2324	} else {
		2325	warn "$ref: cannot resolve object reference\n";
		2326	undef
		2327	}
		2328	}
		2329
		2330	package cf;
		2331
		2332	=back
1431		2333
1432	=head3 cf::object::player	2334	=head3 cf::object::player
1433		2335
1434	=over 4	2336	=over 4
1435		2337
…		…
1449		2351
1450	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2352	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1451		2353
1452	if ($self->{record_replies}) {	2354	if ($self->{record_replies}) {
1453	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2355	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2356
1454	} else {	2357	} else {
		2358	my $pl = $self->contr;
		2359
		2360	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2361	my $dialog = $pl->{npc_dialog};
		2362	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2363
		2364	} else {
1455	$msg = $npc->name . " says: $msg" if $npc;	2365	$msg = $npc->name . " says: $msg" if $npc;
1456	$self->message ($msg, $flags);	2366	$self->message ($msg, $flags);
		2367	}
1457	}	2368	}
		2369	}
		2370
		2371	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2372
		2373	=cut
		2374
		2375	sub cf::object::send_msg {
		2376	my $pl = shift->contr
		2377	or return;
		2378	$pl->send_msg (@_);
1458	}	2379	}
1459		2380
1460	=item $player_object->may ("access")	2381	=item $player_object->may ("access")
1461		2382
1462	Returns wether the given player is authorized to access resource "access"	2383	Returns wether the given player is authorized to access resource "access"
…		…
1475		2396
1476	=item $player_object->enter_link	2397	=item $player_object->enter_link
1477		2398
1478	Freezes the player and moves him/her to a special map (C<{link}>).	2399	Freezes the player and moves him/her to a special map (C<{link}>).
1479		2400
1480	The player should be reaosnably safe there for short amounts of time. You	2401	The player should be reasonably safe there for short amounts of time. You
1481	I<MUST> call C<leave_link> as soon as possible, though.	2402	I<MUST> call C<leave_link> as soon as possible, though.
1482		2403
		2404	Will never block.
		2405
1483	=item $player_object->leave_link ($map, $x, $y)	2406	=item $player_object->leave_link ($map, $x, $y)
1484		2407
1485	Moves the player out of the specila link map onto the given map. If the	2408	Moves the player out of the special C<{link}> map onto the specified
1486	map is not valid (or omitted), the player will be moved back to the	2409	map. If the map is not valid (or omitted), the player will be moved back
1487	location he/she was before the call to C<enter_link>, or, if that fails,	2410	to the location he/she was before the call to C<enter_link>, or, if that
1488	to the emergency map position.	2411	fails, to the emergency map position.
1489		2412
1490	Might block.	2413	Might block.
1491		2414
1492	=cut	2415	=cut
		2416
		2417	sub link_map {
		2418	unless ($LINK_MAP) {
		2419	$LINK_MAP = cf::map::find "{link}"
		2420	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2421	$LINK_MAP->load;
		2422	}
		2423
		2424	$LINK_MAP
		2425	}
1493		2426
1494	sub cf::object::player::enter_link {	2427	sub cf::object::player::enter_link {
1495	my ($self) = @_;	2428	my ($self) = @_;
1496		2429
1497	$self->deactivate_recursive;	2430	$self->deactivate_recursive;
1498		2431
1499	return if $self->map == $LINK_MAP;	2432	return if UNIVERSAL::isa $self->map, "ext::map_link";
1500		2433
1501	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2434	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1502	if $self->map;	2435	if $self->map && $self->map->{path} ne "{link}";
1503		2436
1504	$self->enter_map ($LINK_MAP, 20, 20);	2437	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1505	}	2438	}
1506		2439
1507	sub cf::object::player::leave_link {	2440	sub cf::object::player::leave_link {
1508	my ($self, $map, $x, $y) = @_;	2441	my ($self, $map, $x, $y) = @_;
		2442
		2443	return unless $self->contr->active;
1509		2444
1510	my $link_pos = delete $self->{_link_pos};	2445	my $link_pos = delete $self->{_link_pos};
1511		2446
1512	unless ($map) {	2447	unless ($map) {
1513	# restore original map position	2448	# restore original map position
1514	($map, $x, $y) = @{ $link_pos || [] };	2449	($map, $x, $y) = @{ $link_pos || [] };
1515	$map = cf::map::find_map $map;	2450	$map = cf::map::find $map;
1516		2451
1517	unless ($map) {	2452	unless ($map) {
1518	($map, $x, $y) = @$EMERGENCY_POSITION;	2453	($map, $x, $y) = @$EMERGENCY_POSITION;
1519	$map = cf::map::find_map $map	2454	$map = cf::map::find $map
1520	or die "FATAL: cannot load emergency map\n";	2455	or die "FATAL: cannot load emergency map\n";
1521	}	2456	}
1522	}	2457	}
1523		2458
1524	($x, $y) = (-1, -1)	2459	($x, $y) = (-1, -1)
…		…
1527	# use -1 or undef as default coordinates, not 0, 0	2462	# use -1 or undef as default coordinates, not 0, 0
1528	($x, $y) = ($map->enter_x, $map->enter_y)	2463	($x, $y) = ($map->enter_x, $map->enter_y)
1529	if $x <=0 && $y <= 0;	2464	if $x <=0 && $y <= 0;
1530		2465
1531	$map->load;	2466	$map->load;
		2467	$map->load_neighbours;
1532		2468
		2469	return unless $self->contr->active;
1533	$self->activate_recursive;	2470	$self->activate_recursive;
		2471
		2472	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1534	$self->enter_map ($map, $x, $y);	2473	$self->enter_map ($map, $x, $y);
1535	}	2474	}
1536		2475
1537	cf::player->attach (	2476	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1538	on_logout => sub {
1539	my ($pl) = @_;
1540		2477
1541	# abort map switching before logout	2478	Moves the player to the given map-path and coordinates by first freezing
1542	if ($pl->ob->{_link_pos}) {	2479	her, loading and preparing them map, calling the provided $check callback
1543	cf::sync_job {	2480	that has to return the map if sucecssful, and then unfreezes the player on
1544	$pl->ob->leave_link	2481	the new (success) or old (failed) map position. In either case, $done will
1545	};	2482	be called at the end of this process.
1546	}
1547	},
1548	on_login => sub {
1549	my ($pl) = @_;
1550		2483
1551	# try to abort aborted map switching on player login :)
1552	# should happen only on crashes
1553	if ($pl->ob->{_link_pos}) {
1554	$pl->ob->enter_link;
1555	cf::async {
1556	# we need this sleep as the login has a concurrent enter_exit running
1557	# and this sleep increases chances of the player not ending up in scorn
1558	Coro::Timer::sleep 1;
1559	$pl->ob->leave_link;
1560	};
1561	}
1562	},
1563	);
1564
1565	=item $player_object->goto_map ($path, $x, $y)
1566
1567	=cut	2484	=cut
1568		2485
		2486	our $GOTOGEN;
		2487
1569	sub cf::object::player::goto_map {	2488	sub cf::object::player::goto {
1570	my ($self, $path, $x, $y) = @_;	2489	my ($self, $path, $x, $y, $check, $done) = @_;
		2490
		2491	# do generation counting so two concurrent goto's will be executed in-order
		2492	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1571		2493
1572	$self->enter_link;	2494	$self->enter_link;
1573		2495
1574	(cf::async {	2496	(async {
1575	$path = new cf::path $path;	2497	$Coro::current->{desc} = "player::goto $path $x $y";
1576		2498
1577	my $map = cf::map::find_map $path->as_string;	2499	# *tag paths override both path and x|y
		2500	if ($path =~ /^\*(.*)$/) {
		2501	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2502	my $ob = $obs[rand @obs];
		2503
		2504	# see if we actually can go there
		2505	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2506	$ob = $obs[rand @obs];
		2507	} else {
		2508	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2509	}
		2510	# else put us there anyways for now #d#
		2511
		2512	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2513	} else {
		2514	($path, $x, $y) = (undef, undef, undef);
		2515	}
		2516	}
		2517
		2518	my $map = eval {
		2519	my $map = defined $path ? cf::map::find $path : undef;
		2520
		2521	if ($map) {
1578	$map = $map->customise_for ($self) if $map;	2522	$map = $map->customise_for ($self);
1579		2523	$map = $check->($map) if $check && $map;
1580	# warn "entering ", $map->path, " at ($x, $y)\n"	2524	} else {
1581	# if $map;
1582
1583	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2525	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2526	}
1584		2527
		2528	$map
		2529	};
		2530
		2531	if ($@) {
		2532	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2533	LOG llevError | logBacktrace, Carp::longmess $@;
		2534	}
		2535
		2536	if ($gen == $self->{_goto_generation}) {
		2537	delete $self->{_goto_generation};
1585	$self->leave_link ($map, $x, $y);	2538	$self->leave_link ($map, $x, $y);
		2539	}
		2540
		2541	$done->() if $done;
1586	})->prio (1);	2542	})->prio (1);
1587	}	2543	}
1588		2544
1589	=item $player_object->enter_exit ($exit_object)	2545	=item $player_object->enter_exit ($exit_object)
1590		2546
…		…
1592		2548
1593	sub parse_random_map_params {	2549	sub parse_random_map_params {
1594	my ($spec) = @_;	2550	my ($spec) = @_;
1595		2551
1596	my $rmp = { # defaults	2552	my $rmp = { # defaults
1597	xsize => 10,	2553	xsize => (cf::rndm 15, 40),
1598	ysize => 10,	2554	ysize => (cf::rndm 15, 40),
		2555	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2556	#layout => string,
1599	};	2557	};
1600		2558
1601	for (split /\n/, $spec) {	2559	for (split /\n/, $spec) {
1602	my ($k, $v) = split /\s+/, $_, 2;	2560	my ($k, $v) = split /\s+/, $_, 2;
1603		2561
…		…
1607	$rmp	2565	$rmp
1608	}	2566	}
1609		2567
1610	sub prepare_random_map {	2568	sub prepare_random_map {
1611	my ($exit) = @_;	2569	my ($exit) = @_;
		2570
		2571	my $guard = cf::lock_acquire "exit_prepare:$exit";
1612		2572
1613	# all this does is basically replace the /! path by	2573	# all this does is basically replace the /! path by
1614	# a new random map path (?random/...) with a seed	2574	# a new random map path (?random/...) with a seed
1615	# that depends on the exit object	2575	# that depends on the exit object
1616		2576
1617	my $rmp = parse_random_map_params $exit->msg;	2577	my $rmp = parse_random_map_params $exit->msg;
1618		2578
1619	if ($exit->map) {	2579	if ($exit->map) {
1620	$rmp->{region} = $exit->map->region_name;	2580	$rmp->{region} = $exit->region->name;
1621	$rmp->{origin_map} = $exit->map->path;	2581	$rmp->{origin_map} = $exit->map->path;
1622	$rmp->{origin_x} = $exit->x;	2582	$rmp->{origin_x} = $exit->x;
1623	$rmp->{origin_y} = $exit->y;	2583	$rmp->{origin_y} = $exit->y;
1624	}	2584	}
1625		2585
1626	$rmp->{random_seed} ||= $exit->random_seed;	2586	$rmp->{random_seed} ||= $exit->random_seed;
1627		2587
1628	my $data = cf::to_json $rmp;	2588	my $data = cf::to_json $rmp;
1629	my $md5 = Digest::MD5::md5_hex $data;	2589	my $md5 = Digest::MD5::md5_hex $data;
		2590	my $meta = "$RANDOMDIR/$md5.meta";
1630		2591
1631	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2592	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1632	aio_write $fh, 0, (length $data), $data, 0;	2593	aio_write $fh, 0, (length $data), $data, 0;
		2594	undef $fh;
		2595	aio_rename "$meta~", $meta;
1633		2596
1634	$exit->slaying ("?random/$md5");	2597	$exit->slaying ("?random/$md5");
1635	$exit->msg (undef);	2598	$exit->msg (undef);
1636	}	2599	}
1637	}	2600	}
…		…
1639	sub cf::object::player::enter_exit {	2602	sub cf::object::player::enter_exit {
1640	my ($self, $exit) = @_;	2603	my ($self, $exit) = @_;
1641		2604
1642	return unless $self->type == cf::PLAYER;	2605	return unless $self->type == cf::PLAYER;
1643		2606
		2607	if ($exit->slaying eq "/!") {
		2608	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2609	# the problem is that $exit might not survive long enough
		2610	# so it needs to be done right now, right here
		2611	cf::sync_job { prepare_random_map $exit };
		2612	}
		2613
		2614	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2615	my $hp = $exit->stats->hp;
		2616	my $sp = $exit->stats->sp;
		2617
1644	$self->enter_link;	2618	$self->enter_link;
1645		2619
		2620	# if exit is damned, update players death & WoR home-position
		2621	$self->contr->savebed ($slaying, $hp, $sp)
		2622	if $exit->flag (FLAG_DAMNED);
		2623
1646	(cf::async {	2624	(async {
		2625	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2626
		2627	$self->deactivate_recursive; # just to be sure
1647	unless (eval {	2628	unless (eval {
1648	prepare_random_map $exit	2629	$self->goto ($slaying, $hp, $sp);
1649	if $exit->slaying eq "/!";
1650
1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1652	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1653		2630
1654	1;	2631	1;
1655	}) {	2632	}) {
1656	$self->message ("Something went wrong deep within the crossfire server. "	2633	$self->message ("Something went wrong deep within the crossfire server. "
1657	. "I'll try to bring you back to the map you were before. "	2634	. "I'll try to bring you back to the map you were before. "
1658	. "Please report this to the dungeon master",	2635	. "Please report this to the dungeon master!",
1659	cf::NDI_UNIQUE | cf::NDI_RED);	2636	cf::NDI_UNIQUE | cf::NDI_RED);
1660		2637
1661	warn "ERROR in enter_exit: $@";	2638	warn "ERROR in enter_exit: $@";
1662	$self->leave_link;	2639	$self->leave_link;
1663	}	2640	}
1664	})->prio (1);	2641	})->prio (1);
…		…
1677		2654
1678	sub cf::client::send_drawinfo {	2655	sub cf::client::send_drawinfo {
1679	my ($self, $text, $flags) = @_;	2656	my ($self, $text, $flags) = @_;
1680		2657
1681	utf8::encode $text;	2658	utf8::encode $text;
1682	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2659	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1683	}	2660	}
1684		2661
		2662	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2663
		2664	Send a drawinfo or msg packet to the client, formatting the msg for the
		2665	client if neccessary. C<$type> should be a string identifying the type of
		2666	the message, with C<log> being the default. If C<$color> is negative, suppress
		2667	the message unless the client supports the msg packet.
		2668
		2669	=cut
		2670
		2671	our %CHANNEL = (
		2672	"c/identify" => {
		2673	id => "infobox",
		2674	title => "Identify",
		2675	reply => undef,
		2676	tooltip => "Items recently identified",
		2677	},
		2678	"c/examine" => {
		2679	id => "infobox",
		2680	title => "Examine",
		2681	reply => undef,
		2682	tooltip => "Signs and other items you examined",
		2683	},
		2684	"c/lookat" => {
		2685	id => "infobox",
		2686	title => "Look",
		2687	reply => undef,
		2688	tooltip => "What you saw there",
		2689	},
		2690	);
		2691
		2692	sub cf::client::send_msg {
		2693	my ($self, $channel, $msg, $color, @extra) = @_;
		2694
		2695	$msg = $self->pl->expand_cfpod ($msg);
		2696
		2697	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2698
		2699	# check predefined channels, for the benefit of C
		2700	if ($CHANNEL{$channel}) {
		2701	$channel = $CHANNEL{$channel};
		2702
		2703	$self->ext_msg (channel_info => $channel)
		2704	if $self->can_msg;
		2705
		2706	$channel = $channel->{id};
		2707
		2708	} elsif (ref $channel) {
		2709	# send meta info to client, if not yet sent
		2710	unless (exists $self->{channel}{$channel->{id}}) {
		2711	$self->{channel}{$channel->{id}} = $channel;
		2712	$self->ext_msg (channel_info => $channel)
		2713	if $self->can_msg;
		2714	}
		2715
		2716	$channel = $channel->{id};
		2717	}
		2718
		2719	return unless @extra || length $msg;
		2720
		2721	if ($self->can_msg) {
		2722	# default colour, mask it out
		2723	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2724	if $color & cf::NDI_DEF;
		2725
		2726	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2727	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2728	} else {
		2729	if ($color >= 0) {
		2730	# replace some tags by gcfclient-compatible ones
		2731	for ($msg) {
		2732	1 while
		2733	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2734	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2735	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2736	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2737	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2738	}
		2739
		2740	$color &= cf::NDI_COLOR_MASK;
		2741
		2742	utf8::encode $msg;
		2743
		2744	if (0 && $msg =~ /\[/) {
		2745	# COMMAND/INFO
		2746	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2747	} else {
		2748	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2749	$self->send_packet ("drawinfo $color $msg")
		2750	}
		2751	}
		2752	}
		2753	}
		2754
		2755	=item $client->ext_msg ($type, @msg)
		2756
		2757	Sends an ext event to the client.
		2758
		2759	=cut
		2760
		2761	sub cf::client::ext_msg($$@) {
		2762	my ($self, $type, @msg) = @_;
		2763
		2764	if ($self->extcmd == 2) {
		2765	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2766	} elsif ($self->extcmd == 1) { # TODO: remove
		2767	push @msg, msgtype => "event_$type";
		2768	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2769	}
		2770	}
		2771
		2772	=item $client->ext_reply ($msgid, @msg)
		2773
		2774	Sends an ext reply to the client.
		2775
		2776	=cut
		2777
		2778	sub cf::client::ext_reply($$@) {
		2779	my ($self, $id, @msg) = @_;
		2780
		2781	if ($self->extcmd == 2) {
		2782	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2783	} elsif ($self->extcmd == 1) {
		2784	#TODO: version 1, remove
		2785	unshift @msg, msgtype => "reply", msgid => $id;
		2786	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2787	}
		2788	}
1685		2789
1686	=item $success = $client->query ($flags, "text", \&cb)	2790	=item $success = $client->query ($flags, "text", \&cb)
1687		2791
1688	Queues a query to the client, calling the given callback with	2792	Queues a query to the client, calling the given callback with
1689	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2793	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1690	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2794	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1691		2795
1692	Queries can fail, so check the return code. Or don't, as queries will become	2796	Queries can fail, so check the return code. Or don't, as queries will
1693	reliable at some point in the future.	2797	become reliable at some point in the future.
1694		2798
1695	=cut	2799	=cut
1696		2800
1697	sub cf::client::query {	2801	sub cf::client::query {
1698	my ($self, $flags, $text, $cb) = @_;	2802	my ($self, $flags, $text, $cb) = @_;
…		…
1706	utf8::encode $text;	2810	utf8::encode $text;
1707	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2811	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1708		2812
1709	$self->send_packet ($self->{query_queue}[0][0])	2813	$self->send_packet ($self->{query_queue}[0][0])
1710	if @{ $self->{query_queue} } == 1;	2814	if @{ $self->{query_queue} } == 1;
		2815
		2816	1
1711	}	2817	}
1712		2818
1713	cf::client->attach (	2819	cf::client->attach (
		2820	on_connect => sub {
		2821	my ($ns) = @_;
		2822
		2823	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2824	},
1714	on_reply => sub {	2825	on_reply => sub {
1715	my ($ns, $msg) = @_;	2826	my ($ns, $msg) = @_;
1716		2827
1717	# this weird shuffling is so that direct followup queries	2828	# this weird shuffling is so that direct followup queries
1718	# get handled first	2829	# get handled first
1719	my $queue = delete $ns->{query_queue}	2830	my $queue = delete $ns->{query_queue}
1720	or return; # be conservative, not sure how that can happen, but we saw a crash here	2831	or return; # be conservative, not sure how that can happen, but we saw a crash here
1721		2832
1722	(shift @$queue)->[1]->($msg);	2833	(shift @$queue)->[1]->($msg);
		2834	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1723		2835
1724	push @{ $ns->{query_queue} }, @$queue;	2836	push @{ $ns->{query_queue} }, @$queue;
1725		2837
1726	if (@{ $ns->{query_queue} } == @$queue) {	2838	if (@{ $ns->{query_queue} } == @$queue) {
1727	if (@$queue) {	2839	if (@$queue) {
…		…
1729	} else {	2841	} else {
1730	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2842	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1731	}	2843	}
1732	}	2844	}
1733	},	2845	},
		2846	on_exticmd => sub {
		2847	my ($ns, $buf) = @_;
		2848
		2849	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2850
		2851	if (ref $msg) {
		2852	my ($type, $reply, @payload) =
		2853	"ARRAY" eq ref $msg
		2854	? @$msg
		2855	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2856
		2857	my @reply;
		2858
		2859	if (my $cb = $EXTICMD{$type}) {
		2860	@reply = $cb->($ns, @payload);
		2861	}
		2862
		2863	$ns->ext_reply ($reply, @reply)
		2864	if $reply;
		2865
		2866	} else {
		2867	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2868	}
		2869
		2870	cf::override;
		2871	},
1734	);	2872	);
1735		2873
1736	=item $client->coro (\&cb)	2874	=item $client->async (\&cb)
1737		2875
1738	Create a new coroutine, running the specified callback. The coroutine will	2876	Create a new coroutine, running the specified callback. The coroutine will
1739	be automatically cancelled when the client gets destroyed (e.g. on logout,	2877	be automatically cancelled when the client gets destroyed (e.g. on logout,
1740	or loss of connection).	2878	or loss of connection).
1741		2879
1742	=cut	2880	=cut
1743		2881
1744	sub cf::client::coro {	2882	sub cf::client::async {
1745	my ($self, $cb) = @_;	2883	my ($self, $cb) = @_;
1746		2884
1747	my $coro = &cf::async ($cb);	2885	my $coro = &Coro::async ($cb);
1748		2886
1749	$coro->on_destroy (sub {	2887	$coro->on_destroy (sub {
1750	delete $self->{_coro}{$coro+0};	2888	delete $self->{_coro}{$coro+0};
1751	});	2889	});
1752		2890
…		…
1779	our $safe = new Safe "safe";	2917	our $safe = new Safe "safe";
1780	our $safe_hole = new Safe::Hole;	2918	our $safe_hole = new Safe::Hole;
1781		2919
1782	$SIG{FPE} = 'IGNORE';	2920	$SIG{FPE} = 'IGNORE';
1783		2921
1784	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2922	$safe->permit_only (Opcode::opset qw(
		2923	:base_core :base_mem :base_orig :base_math
		2924	grepstart grepwhile mapstart mapwhile
		2925	sort time
		2926	));
1785		2927
1786	# here we export the classes and methods available to script code	2928	# here we export the classes and methods available to script code
1787		2929
1788	=pod	2930	=pod
1789		2931
1790	The following fucntions and emthods are available within a safe environment:	2932	The following functions and methods are available within a safe environment:
1791		2933
1792	cf::object contr pay_amount pay_player map	2934	cf::object
		2935	contr pay_amount pay_player map x y force_find force_add destroy
		2936	insert remove name archname title slaying race decrease_ob_nr
		2937
1793	cf::object::player player	2938	cf::object::player
1794	cf::player peaceful	2939	player
1795	cf::map trigger	2940
		2941	cf::player
		2942	peaceful
		2943
		2944	cf::map
		2945	trigger
1796		2946
1797	=cut	2947	=cut
1798		2948
1799	for (	2949	for (
1800	["cf::object" => qw(contr pay_amount pay_player map)],	2950	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2951	insert remove inv name archname title slaying race
		2952	decrease_ob_nr destroy)],
1801	["cf::object::player" => qw(player)],	2953	["cf::object::player" => qw(player)],
1802	["cf::player" => qw(peaceful)],	2954	["cf::player" => qw(peaceful)],
1803	["cf::map" => qw(trigger)],	2955	["cf::map" => qw(trigger)],
1804	) {	2956	) {
1805	no strict 'refs';	2957	no strict 'refs';
…		…
1876	=back	3028	=back
1877		3029
1878	=cut	3030	=cut
1879		3031
1880	#############################################################################	3032	#############################################################################
		3033	# the server's init and main functions
1881		3034
1882	=head2 EXTENSION DATABASE SUPPORT	3035	sub load_facedata($) {
		3036	my ($path) = @_;
1883		3037
1884	Crossfire maintains a very simple database for extension use. It can	3038	# HACK to clear player env face cache, we need some signal framework
1885	currently store anything that can be serialised using Storable, which	3039	# for this (global event?)
1886	excludes objects.	3040	%ext::player_env::MUSIC_FACE_CACHE = ();
1887		3041
1888	The parameter C<$family> should best start with the name of the extension	3042	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1889	using it, it should be unique.
1890		3043
1891	=over 4	3044	warn "loading facedata from $path\n";
1892		3045
1893	=item $hashref = cf::db_get $family	3046	my $facedata;
		3047	0 < aio_load $path, $facedata
		3048	or die "$path: $!";
1894		3049
1895	Return a hashref for use by the extension C<$family>, which can be	3050	$facedata = Coro::Storable::thaw $facedata;
1896	modified. After modifications, you have to call C<cf::db_dirty> or
1897	C<cf::db_sync>.
1898		3051
1899	=item $value = cf::db_get $family => $key	3052	$facedata->{version} == 2
		3053	or cf::cleanup "$path: version mismatch, cannot proceed.";
1900		3054
1901	Returns a single value from the database	3055	# patch in the exptable
1902		3056	$facedata->{resource}{"res/exp_table"} = {
1903	=item cf::db_put $family => $hashref	3057	type => FT_RSRC,
1904		3058	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1905	Stores the given family hashref into the database. Updates are delayed, if
1906	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1907
1908	=item cf::db_put $family => $key => $value
1909
1910	Stores the given C<$value> in the family hash. Updates are delayed, if you
1911	want the data to be synced to disk immediately, use C<cf::db_sync>.
1912
1913	=item cf::db_dirty
1914
1915	Marks the database as dirty, to be updated at a later time.
1916
1917	=item cf::db_sync
1918
1919	Immediately write the database to disk I<if it is dirty>.
1920
1921	=cut
1922
1923	our $DB;
1924
1925	{
1926	my $path = cf::localdir . "/database.pst";
1927
1928	sub db_load() {
1929	$DB = stat $path ? Storable::retrieve $path : { };
1930	}
1931
1932	my $pid;
1933
1934	sub db_save() {
1935	waitpid $pid, 0 if $pid;
1936	if (0 == ($pid = fork)) {
1937	$DB->{_meta}{version} = 1;
1938	Storable::nstore $DB, "$path~";
1939	rename "$path~", $path;
1940	cf::_exit 0 if defined $pid;
1941	}
1942	}
1943
1944	my $dirty;
1945
1946	sub db_sync() {
1947	db_save if $dirty;
1948	undef $dirty;
1949	}
1950
1951	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1952	db_sync;
1953	});	3059	};
		3060	cf::cede_to_tick;
1954		3061
1955	sub db_dirty() {
1956	$dirty = 1;
1957	$idle->start;
1958	}	3062	{
		3063	my $faces = $facedata->{faceinfo};
1959		3064
1960	sub db_get($;$) {	3065	while (my ($face, $info) = each %$faces) {
1961	@_ >= 2	3066	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1962	? $DB->{$_[0]}{$_[1]}	3067	cf::face::set_visibility $idx, $info->{visibility};
1963	: ($DB->{$_[0]} ||= { })	3068	cf::face::set_magicmap $idx, $info->{magicmap};
1964	}	3069	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3070	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1965		3071
1966	sub db_put($$;$) {	3072	cf::cede_to_tick;
1967	if (@_ >= 3) {
1968	$DB->{$_[0]}{$_[1]} = $_[2];
1969	} else {
1970	$DB->{$_[0]} = $_[1];
1971	}
1972	db_dirty;
1973	}
1974
1975	cf::global->attach (
1976	prio => 10000,
1977	on_cleanup => sub {
1978	db_sync;
1979	},	3073	}
1980	);
1981	}
1982		3074
1983	#############################################################################	3075	while (my ($face, $info) = each %$faces) {
1984	# the server's main()	3076	next unless $info->{smooth};
		3077	my $idx = cf::face::find $face
		3078	or next;
		3079	if (my $smooth = cf::face::find $info->{smooth}) {
		3080	cf::face::set_smooth $idx, $smooth;
		3081	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3082	} else {
		3083	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3084	}
1985		3085
1986	sub cfg_load {	3086	cf::cede_to_tick;
		3087	}
		3088	}
		3089
		3090	{
		3091	my $anims = $facedata->{animinfo};
		3092
		3093	while (my ($anim, $info) = each %$anims) {
		3094	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3095	cf::cede_to_tick;
		3096	}
		3097
		3098	cf::anim::invalidate_all; # d'oh
		3099	}
		3100
		3101	{
		3102	# TODO: for gcfclient pleasure, we should give resources
		3103	# that gcfclient doesn't grok a >10000 face index.
		3104	my $res = $facedata->{resource};
		3105
		3106	my $soundconf = delete $res->{"res/sound.conf"};
		3107
		3108	while (my ($name, $info) = each %$res) {
		3109	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3110	my $data;
		3111
		3112	if ($info->{type} & 1) {
		3113	# prepend meta info
		3114
		3115	my $meta = $enc->encode ({
		3116	name => $name,
		3117	%{ $info->{meta} || {} },
		3118	});
		3119
		3120	$data = pack "(w/a*)*", $meta, $info->{data};
		3121	} else {
		3122	$data = $info->{data};
		3123	}
		3124
		3125	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3126	cf::face::set_type $idx, $info->{type};
		3127
		3128	cf::cede_to_tick;
		3129	}
		3130
		3131	if ($soundconf) {
		3132	$soundconf = $enc->decode (delete $soundconf->{data});
		3133
		3134	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3135	my $sound = $soundconf->{compat}[$_]
		3136	or next;
		3137
		3138	my $face = cf::face::find "sound/$sound->[1]";
		3139	cf::sound::set $sound->[0] => $face;
		3140	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3141	}
		3142
		3143	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3144	my $face = cf::face::find "sound/$v";
		3145	cf::sound::set $k => $face;
		3146	}
		3147	}
		3148	}
		3149
		3150	1
		3151	}
		3152
		3153	register_exticmd fx_want => sub {
		3154	my ($ns, $want) = @_;
		3155
		3156	while (my ($k, $v) = each %$want) {
		3157	$ns->fx_want ($k, $v);
		3158	}
		3159	};
		3160
		3161	sub reload_regions {
		3162	# HACK to clear player env face cache, we need some signal framework
		3163	# for this (global event?)
		3164	%ext::player_env::MUSIC_FACE_CACHE = ();
		3165
		3166	load_resource_file "$MAPDIR/regions"
		3167	or die "unable to load regions file\n";
		3168
		3169	for (cf::region::list) {
		3170	$_->{match} = qr/$_->{match}/
		3171	if exists $_->{match};
		3172	}
		3173	}
		3174
		3175	sub reload_facedata {
		3176	load_facedata "$DATADIR/facedata"
		3177	or die "unable to load facedata\n";
		3178	}
		3179
		3180	sub reload_archetypes {
		3181	load_resource_file "$DATADIR/archetypes"
		3182	or die "unable to load archetypes\n";
		3183	#d# NEED to laod twice to resolve forward references
		3184	# this really needs to be done in an extra post-pass
		3185	# (which needs to be synchronous, so solve it differently)
		3186	load_resource_file "$DATADIR/archetypes"
		3187	or die "unable to load archetypes\n";
		3188	}
		3189
		3190	sub reload_treasures {
		3191	load_resource_file "$DATADIR/treasures"
		3192	or die "unable to load treasurelists\n";
		3193	}
		3194
		3195	sub reload_resources {
		3196	warn "reloading resource files...\n";
		3197
		3198	reload_regions;
		3199	reload_facedata;
		3200	#reload_archetypes;#d#
		3201	reload_archetypes;
		3202	reload_treasures;
		3203
		3204	warn "finished reloading resource files\n";
		3205	}
		3206
		3207	sub init {
		3208	reload_resources;
		3209	}
		3210
		3211	sub reload_config {
1987	open my $fh, "<:utf8", cf::confdir . "/config"	3212	open my $fh, "<:utf8", "$CONFDIR/config"
1988	or return;	3213	or return;
1989		3214
1990	local $/;	3215	local $/;
1991	*CFG = YAML::Syck::Load <$fh>;	3216	*CFG = YAML::Syck::Load <$fh>;
1992		3217
1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3218	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1994		3219
		3220	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3221	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3222
1995	if (exists $CFG{mlockall}) {	3223	if (exists $CFG{mlockall}) {
1996	eval {	3224	eval {
1997	$CFG{mlockall} ? &mlockall : &munlockall	3225	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998	and die "WARNING: m(un)lockall failed: $!\n";	3226	and die "WARNING: m(un)lockall failed: $!\n";
1999	};	3227	};
2000	warn $@ if $@;	3228	warn $@ if $@;
2001	}	3229	}
2002	}	3230	}
2003		3231
2004	sub main {	3232	sub main {
2005	# we must not ever block the main coroutine	3233	# we must not ever block the main coroutine
2006	local $Coro::idle = sub {	3234	local $Coro::idle = sub {
2007	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3235	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2008	(Coro::unblock_sub {	3236	(async {
		3237	$Coro::current->{desc} = "IDLE BUG HANDLER";
2009	Event::one_event;	3238	Event::one_event;
2010	})->();	3239	})->prio (Coro::PRIO_MAX);
2011	};	3240	};
2012		3241
2013	cfg_load;	3242	reload_config;
2014	db_load;	3243	db_init;
2015	load_extensions;	3244	load_extensions;
		3245
		3246	$TICK_WATCHER->start;
2016	Event::loop;	3247	Event::loop;
2017	}	3248	}
2018		3249
2019	#############################################################################	3250	#############################################################################
2020	# initialisation	3251	# initialisation and cleanup
2021		3252
		3253	# install some emergency cleanup handlers
		3254	BEGIN {
		3255	for my $signal (qw(INT HUP TERM)) {
		3256	Event->signal (
		3257	reentrant => 0,
		3258	data => WF_AUTOCANCEL,
		3259	signal => $signal,
		3260	prio => 0,
		3261	cb => sub {
		3262	cf::cleanup "SIG$signal";
		3263	},
		3264	);
		3265	}
		3266	}
		3267
		3268	sub write_runtime {
		3269	my $runtime = "$LOCALDIR/runtime";
		3270
		3271	# first touch the runtime file to show we are still running:
		3272	# the fsync below can take a very very long time.
		3273
		3274	IO::AIO::aio_utime $runtime, undef, undef;
		3275
		3276	my $guard = cf::lock_acquire "write_runtime";
		3277
		3278	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3279	or return;
		3280
		3281	my $value = $cf::RUNTIME + 90 + 10;
		3282	# 10 is the runtime save interval, for a monotonic clock
		3283	# 60 allows for the watchdog to kill the server.
		3284
		3285	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3286	and return;
		3287
		3288	# always fsync - this file is important
		3289	aio_fsync $fh
		3290	and return;
		3291
		3292	# touch it again to show we are up-to-date
		3293	aio_utime $fh, undef, undef;
		3294
		3295	close $fh
		3296	or return;
		3297
		3298	aio_rename "$runtime~", $runtime
		3299	and return;
		3300
		3301	warn "runtime file written.\n";
		3302
		3303	1
		3304	}
		3305
		3306	sub emergency_save() {
		3307	my $freeze_guard = cf::freeze_mainloop;
		3308
		3309	warn "enter emergency perl save\n";
		3310
		3311	cf::sync_job {
		3312	# use a peculiar iteration method to avoid tripping on perl
		3313	# refcount bugs in for. also avoids problems with players
		3314	# and maps saved/destroyed asynchronously.
		3315	warn "begin emergency player save\n";
		3316	for my $login (keys %cf::PLAYER) {
		3317	my $pl = $cf::PLAYER{$login} or next;
		3318	$pl->valid or next;
		3319	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3320	$pl->save;
		3321	}
		3322	warn "end emergency player save\n";
		3323
		3324	warn "begin emergency map save\n";
		3325	for my $path (keys %cf::MAP) {
		3326	my $map = $cf::MAP{$path} or next;
		3327	$map->valid or next;
		3328	$map->save;
		3329	}
		3330	warn "end emergency map save\n";
		3331
		3332	warn "begin emergency database checkpoint\n";
		3333	BDB::db_env_txn_checkpoint $DB_ENV;
		3334	warn "end emergency database checkpoint\n";
		3335	};
		3336
		3337	warn "leave emergency perl save\n";
		3338	}
		3339
		3340	sub post_cleanup {
		3341	my ($make_core) = @_;
		3342
		3343	warn Carp::longmess "post_cleanup backtrace"
		3344	if $make_core;
		3345	}
		3346
2022	sub reload() {	3347	sub do_reload_perl() {
2023	# can/must only be called in main	3348	# can/must only be called in main
2024	if ($Coro::current != $Coro::main) {	3349	if ($Coro::current != $Coro::main) {
2025	warn "can only reload from main coroutine\n";	3350	warn "can only reload from main coroutine";
2026	return;	3351	return;
2027	}	3352	}
2028		3353
2029	warn "reloading...";	3354	warn "reloading...";
2030		3355
2031	local $FREEZE = 1;	3356	warn "entering sync_job";
		3357
		3358	cf::sync_job {
		3359	cf::write_runtime; # external watchdog should not bark
2032	cf::emergency_save;	3360	cf::emergency_save;
		3361	cf::write_runtime; # external watchdog should not bark
2033		3362
2034	eval {	3363	warn "syncing database to disk";
		3364	BDB::db_env_txn_checkpoint $DB_ENV;
		3365
2035	# if anything goes wrong in here, we should simply crash as we already saved	3366	# if anything goes wrong in here, we should simply crash as we already saved
2036		3367
2037	# cancel all watchers	3368	warn "cancelling all WF_AUTOCANCEL watchers";
2038	for (Event::all_watchers) {	3369	for (Event::all_watchers) {
2039	$_->cancel if $_->data & WF_AUTOCANCEL;	3370	$_->cancel if $_->data & WF_AUTOCANCEL;
2040	}	3371	}
2041		3372
		3373	warn "flushing outstanding aio requests";
		3374	for (;;) {
		3375	BDB::flush;
		3376	IO::AIO::flush;
		3377	Coro::cede_notself;
		3378	last unless IO::AIO::nreqs || BDB::nreqs;
		3379	warn "iterate...";
		3380	}
		3381
		3382	++$RELOAD;
		3383
2042	# cancel all extension coros	3384	warn "cancelling all extension coros";
2043	$_->cancel for values %EXT_CORO;	3385	$_->cancel for values %EXT_CORO;
2044	%EXT_CORO = ();	3386	%EXT_CORO = ();
2045		3387
2046	# unload all extensions	3388	warn "removing commands";
2047	for (@exts) {	3389	%COMMAND = ();
		3390
		3391	warn "removing ext/exti commands";
		3392	%EXTCMD = ();
		3393	%EXTICMD = ();
		3394
		3395	warn "unloading/nuking all extensions";
		3396	for my $pkg (@EXTS) {
2048	warn "unloading <$_>";	3397	warn "... unloading $pkg";
2049	unload_extension $_;	3398
		3399	if (my $cb = $pkg->can ("unload")) {
		3400	eval {
		3401	$cb->($pkg);
		3402	1
		3403	} or warn "$pkg unloaded, but with errors: $@";
2050	}	3404	}
2051		3405
		3406	warn "... nuking $pkg";
		3407	Symbol::delete_package $pkg;
		3408	}
		3409
2052	# unload all modules loaded from $LIBDIR	3410	warn "unloading all perl modules loaded from $LIBDIR";
2053	while (my ($k, $v) = each %INC) {	3411	while (my ($k, $v) = each %INC) {
2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3412	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2055		3413
2056	warn "removing <$k>";	3414	warn "... unloading $k";
2057	delete $INC{$k};	3415	delete $INC{$k};
2058		3416
2059	$k =~ s/\.pm$//;	3417	$k =~ s/\.pm$//;
2060	$k =~ s/\//::/g;	3418	$k =~ s/\//::/g;
2061		3419
…		…
2064	}	3422	}
2065		3423
2066	Symbol::delete_package $k;	3424	Symbol::delete_package $k;
2067	}	3425	}
2068		3426
2069	# sync database to disk
2070	cf::db_sync;
2071	IO::AIO::flush;
2072
2073	# get rid of safe::, as good as possible	3427	warn "getting rid of safe::, as good as possible";
2074	Symbol::delete_package "safe::$_"	3428	Symbol::delete_package "safe::$_"
2075	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3429	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2076		3430
2077	# remove register_script_function callbacks
2078	# TODO
2079
2080	# unload cf.pm "a bit"	3431	warn "unloading cf.pm \"a bit\"";
2081	delete $INC{"cf.pm"};	3432	delete $INC{"cf.pm"};
		3433	delete $INC{"cf/pod.pm"};
2082		3434
2083	# don't, removes xs symbols, too,	3435	# don't, removes xs symbols, too,
2084	# and global variables created in xs	3436	# and global variables created in xs
2085	#Symbol::delete_package __PACKAGE__;	3437	#Symbol::delete_package __PACKAGE__;
2086		3438
2087	# reload cf.pm	3439	warn "unload completed, starting to reload now";
		3440
2088	warn "reloading cf.pm";	3441	warn "reloading cf.pm";
2089	require cf;	3442	require cf;
2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3443	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2091		3444
2092	# load config and database again	3445	warn "loading config and database again";
2093	cf::cfg_load;	3446	cf::reload_config;
2094	cf::db_load;
2095		3447
2096	# load extensions
2097	warn "load extensions";	3448	warn "loading extensions";
2098	cf::load_extensions;	3449	cf::load_extensions;
2099		3450
2100	# reattach attachments to objects	3451	warn "reattaching attachments to objects/players";
2101	warn "reattach";	3452	_global_reattach; # objects, sockets
2102	_global_reattach;	3453	warn "reattaching attachments to maps";
2103	};	3454	reattach $_ for values %MAP;
		3455	warn "reattaching attachments to players";
		3456	reattach $_ for values %PLAYER;
2104		3457
2105	if ($@) {	3458	warn "leaving sync_job";
		3459
		3460	1
		3461	} or do {
2106	warn $@;	3462	warn $@;
2107	warn "error while reloading, exiting.";	3463	warn "error while reloading, exiting.";
2108	exit 1;	3464	exit 1;
2109	}	3465	};
2110		3466
2111	warn "reloaded successfully";	3467	warn "reloaded";
2112	};	3468	};
2113		3469
2114	#############################################################################	3470	our $RELOAD_WATCHER; # used only during reload
2115		3471
2116	unless ($LINK_MAP) {	3472	sub reload_perl() {
2117	$LINK_MAP = cf::map::new;	3473	# doing reload synchronously and two reloads happen back-to-back,
		3474	# coro crashes during coro_state_free->destroy here.
2118		3475
2119	$LINK_MAP->width (41);	3476	$RELOAD_WATCHER ||= Event->timer (
2120	$LINK_MAP->height (41);	3477	reentrant => 0,
2121	$LINK_MAP->alloc;
2122	$LINK_MAP->path ("{link}");
2123	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2124	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2125
2126	# dirty hack because... archetypes are not yet loaded
2127	Event->timer (
2128	after => 2,	3478	after => 0,
		3479	data => WF_AUTOCANCEL,
2129	cb => sub {	3480	cb => sub {
2130	$_[0]->w->cancel;	3481	do_reload_perl;
2131		3482	undef $RELOAD_WATCHER;
2132	# provide some exits "home"
2133	my $exit = cf::object::new "exit";
2134
2135	$exit->slaying ($EMERGENCY_POSITION->[0]);
2136	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2137	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2138
2139	$LINK_MAP->insert ($exit->clone, 19, 19);
2140	$LINK_MAP->insert ($exit->clone, 19, 20);
2141	$LINK_MAP->insert ($exit->clone, 19, 21);
2142	$LINK_MAP->insert ($exit->clone, 20, 19);
2143	$LINK_MAP->insert ($exit->clone, 20, 21);
2144	$LINK_MAP->insert ($exit->clone, 21, 19);
2145	$LINK_MAP->insert ($exit->clone, 21, 20);
2146	$LINK_MAP->insert ($exit->clone, 21, 21);
2147
2148	$exit->destroy;
2149	});	3483	},
2150		3484	);
2151	$LINK_MAP->{deny_save} = 1;
2152	$LINK_MAP->{deny_reset} = 1;
2153
2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2155	}	3485	}
2156
2157	register "<global>", __PACKAGE__;
2158		3486
2159	register_command "reload" => sub {	3487	register_command "reload" => sub {
2160	my ($who, $arg) = @_;	3488	my ($who, $arg) = @_;
2161		3489
2162	if ($who->flag (FLAG_WIZ)) {	3490	if ($who->flag (FLAG_WIZ)) {
2163	$who->message ("start of reload.");
2164	reload;
2165	$who->message ("end of reload.");	3491	$who->message ("reloading server.");
		3492	async {
		3493	$Coro::current->{desc} = "perl_reload";
		3494	reload_perl;
		3495	};
2166	}	3496	}
2167	};	3497	};
2168		3498
2169	unshift @INC, $LIBDIR;	3499	unshift @INC, $LIBDIR;
		3500
		3501	my $bug_warning = 0;
		3502
		3503	our @WAIT_FOR_TICK;
		3504	our @WAIT_FOR_TICK_BEGIN;
		3505
		3506	sub wait_for_tick {
		3507	return unless $TICK_WATCHER->is_active;
		3508	return if $Coro::current == $Coro::main;
		3509
		3510	my $signal = new Coro::Signal;
		3511	push @WAIT_FOR_TICK, $signal;
		3512	$signal->wait;
		3513	}
		3514
		3515	sub wait_for_tick_begin {
		3516	return unless $TICK_WATCHER->is_active;
		3517	return if $Coro::current == $Coro::main;
		3518
		3519	my $signal = new Coro::Signal;
		3520	push @WAIT_FOR_TICK_BEGIN, $signal;
		3521	$signal->wait;
		3522	}
2170		3523
2171	$TICK_WATCHER = Event->timer (	3524	$TICK_WATCHER = Event->timer (
2172	reentrant => 0,	3525	reentrant => 0,
		3526	parked => 1,
2173	prio => 0,	3527	prio => 0,
2174	at => $NEXT_TICK || $TICK,	3528	at => $NEXT_TICK || $TICK,
2175	data => WF_AUTOCANCEL,	3529	data => WF_AUTOCANCEL,
2176	cb => sub {	3530	cb => sub {
2177	unless ($FREEZE) {	3531	if ($Coro::current != $Coro::main) {
		3532	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3533	unless ++$bug_warning > 10;
		3534	return;
		3535	}
		3536
		3537	$NOW = $tick_start = Event::time;
		3538
2178	cf::server_tick; # one server iteration	3539	cf::server_tick; # one server iteration
		3540
2179	$RUNTIME += $TICK;	3541	$RUNTIME += $TICK;
2180	}
2181
2182	$NEXT_TICK += $TICK;	3542	$NEXT_TICK += $TICK;
2183		3543
		3544	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3545	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3546	Coro::async_pool {
		3547	$Coro::current->{desc} = "runtime saver";
		3548	write_runtime
		3549	or warn "ERROR: unable to write runtime file: $!";
		3550	};
		3551	}
		3552
		3553	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3554	$sig->send;
		3555	}
		3556	while (my $sig = shift @WAIT_FOR_TICK) {
		3557	$sig->send;
		3558	}
		3559
		3560	$NOW = Event::time;
		3561
2184	# if we are delayed by four ticks or more, skip them all	3562	# if we are delayed by four ticks or more, skip them all
2185	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3563	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2186		3564
2187	$TICK_WATCHER->at ($NEXT_TICK);	3565	$TICK_WATCHER->at ($NEXT_TICK);
2188	$TICK_WATCHER->start;	3566	$TICK_WATCHER->start;
		3567
		3568	$LOAD = ($NOW - $tick_start) / $TICK;
		3569	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3570
		3571	_post_tick;
2189	},	3572	},
2190	);	3573	);
2191		3574
		3575	{
		3576	BDB::min_parallel 8;
2192	IO::AIO::max_poll_time $TICK * 0.2;	3577	BDB::max_poll_time $TICK * 0.1;
2193		3578	$BDB_POLL_WATCHER = Event->io (
2194	Event->io (	3579	reentrant => 0,
2195	fd => IO::AIO::poll_fileno,	3580	fd => BDB::poll_fileno,
2196	poll => 'r',	3581	poll => 'r',
2197	prio => 5,	3582	prio => 0,
2198	data => WF_AUTOCANCEL,
2199	cb => \&IO::AIO::poll_cb,
2200	);
2201
2202	Event->timer (
2203	data => WF_AUTOCANCEL,	3583	data => WF_AUTOCANCEL,
		3584	cb => \&BDB::poll_cb,
		3585	);
		3586
		3587	BDB::set_sync_prepare {
		3588	my $status;
		3589	my $current = $Coro::current;
		3590	(
		3591	sub {
		3592	$status = $!;
		3593	$current->ready; undef $current;
		3594	},
		3595	sub {
		3596	Coro::schedule while defined $current;
		3597	$! = $status;
		3598	},
		3599	)
		3600	};
		3601
		3602	unless ($DB_ENV) {
		3603	$DB_ENV = BDB::db_env_create;
		3604	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3605	| BDB::LOG_AUTOREMOVE, 1);
		3606	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3607	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3608
		3609	cf::sync_job {
		3610	eval {
		3611	BDB::db_env_open
		3612	$DB_ENV,
		3613	$BDBDIR,
		3614	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3615	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3616	0666;
		3617
		3618	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3619	};
		3620
		3621	cf::cleanup "db_env_open(db): $@" if $@;
		3622	};
		3623	}
		3624
		3625	$BDB_DEADLOCK_WATCHER = Event->timer (
2204	after => 0,	3626	after => 3,
2205	interval => 10,	3627	interval => 1,
		3628	hard => 1,
		3629	prio => 0,
		3630	data => WF_AUTOCANCEL,
2206	cb => sub {	3631	cb => sub {
2207	(Coro::unblock_sub {	3632	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2208	write_runtime	3633	},
2209	or warn "ERROR: unable to write runtime file: $!";	3634	);
		3635	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3636	after => 11,
		3637	interval => 60,
		3638	hard => 1,
		3639	prio => 0,
		3640	data => WF_AUTOCANCEL,
		3641	cb => sub {
		3642	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3643	},
		3644	);
		3645	$BDB_TRICKLE_WATCHER = Event->timer (
		3646	after => 5,
		3647	interval => 10,
		3648	hard => 1,
		3649	prio => 0,
		3650	data => WF_AUTOCANCEL,
		3651	cb => sub {
		3652	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3653	},
		3654	);
		3655	}
		3656
		3657	{
		3658	IO::AIO::min_parallel 8;
		3659
		3660	undef $Coro::AIO::WATCHER;
		3661	IO::AIO::max_poll_time $TICK * 0.1;
		3662	$AIO_POLL_WATCHER = Event->io (
		3663	reentrant => 0,
		3664	data => WF_AUTOCANCEL,
		3665	fd => IO::AIO::poll_fileno,
		3666	poll => 'r',
		3667	prio => 0,
		3668	cb => \&IO::AIO::poll_cb,
		3669	);
		3670	}
		3671
		3672	my $_log_backtrace;
		3673
		3674	sub _log_backtrace {
		3675	my ($msg, @addr) = @_;
		3676
		3677	$msg =~ s/\n//;
		3678
		3679	# limit the # of concurrent backtraces
		3680	if ($_log_backtrace < 2) {
		3681	++$_log_backtrace;
		3682	async {
		3683	$Coro::current->{desc} = "abt $msg";
		3684
		3685	my @bt = fork_call {
		3686	@addr = map { sprintf "%x", $_ } @addr;
		3687	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3688	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3689	or die "addr2line: $!";
		3690
		3691	my @funcs;
		3692	my @res = <$fh>;
		3693	chomp for @res;
		3694	while (@res) {
		3695	my ($func, $line) = splice @res, 0, 2, ();
		3696	push @funcs, "[$func] $line";
		3697	}
		3698
		3699	@funcs
		3700	};
		3701
		3702	LOG llevInfo, "[ABT] $msg\n";
		3703	LOG llevInfo, "[ABT] $_\n" for @bt;
		3704	--$_log_backtrace;
2210	})->();	3705	};
		3706	} else {
		3707	LOG llevInfo, "[ABT] $msg\n";
		3708	LOG llevInfo, "[ABT] [suppressed]\n";
2211	},	3709	}
2212	);	3710	}
		3711
		3712	# load additional modules
		3713	use cf::pod;
2213		3714
2214	END { cf::emergency_save }	3715	END { cf::emergency_save }
2215		3716
2216	1	3717	1
2217		3718

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