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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.121 by root, Tue Jan 2 11:11:52 2007 UTC vs.
Revision 1.387 by root, Mon Oct 15 23:49:10 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Socket;
		9	use Event;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.3;	15	use Coro 4.1 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
		28	use Data::Dumper;
20	use Digest::MD5;	29	use Digest::MD5;
21	use Fcntl;	30	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.51 ();
24	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
25		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
27		44
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
30		47
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		49
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		51
35	our %COMMAND = ();	52	our %COMMAND = ();
36	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
38		60
		61	our $RELOAD; # number of reloads so far
39	our @EVENT;	62	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		63
42	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	80	our $NEXT_TICK;
45	our $NOW;	81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $BDB_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
		88	our $DB_ENV;
46		89
47	our %CFG;	90	our %CFG;
48		91
49	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	93	our $RUNTIME;
51		94
52	our %MAP; # all maps	95	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	96	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	97	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	98
56	our %EXT_CORO;	99	# used to convert map paths into valid unix filenames by replacing / by ∕
		100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
57		105
58	binmode STDOUT;	106	binmode STDOUT;
59	binmode STDERR;	107	binmode STDERR;
60		108
61	# read virtual server time, if available	109	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
66	}	114	}
67		115
68	mkdir cf::localdir;	116	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		118
74	# a special map that is always available	119	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		120
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	121	sub cf::map::normalise;
78		122
79	#############################################################################	123	#############################################################################
80		124
81	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
82		126
…		…
89	=item $cf::RUNTIME	133	=item $cf::RUNTIME
90		134
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	136	every server tick.
93		137
94	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		141
96	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
98		146
99	=item $cf::NOW	147	=item $cf::NOW
100		148
101	The time of the last (current) server tick.	149	The time of the last (current) server tick.
102		150
103	=item $cf::TICK	151	=item $cf::TICK
104		152
105	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
106		164
107	=item %cf::CFG	165	=item %cf::CFG
108		166
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	168	from wherever your confdir points to.
		169
		170	=item cf::wait_for_tick, cf::wait_for_tick_begin
		171
		172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		173	returns directly I<after> the tick processing (and consequently, can only wake one process
		174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
111		181
112	=back	182	=back
113		183
114	=cut	184	=cut
115		185
116	BEGIN {	186	BEGIN {
117	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	188	my $msg = join "", @_;
119	utf8::encode $msg;
120		189
121	$msg .= "\n"	190	$msg .= "\n"
122	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
123		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		194
124	LOG llevError, "cfperl: $msg";	195	LOG llevError, $msg;
125	};	196	};
126	}	197	}
127		198
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		206
135	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	208	# within the Safe compartment.
137	for my $pkg (qw(	209	for my $pkg (qw(
138	cf::global cf::attachable	210	cf::global cf::attachable
…		…
147		219
148	$Event::DIED = sub {	220	$Event::DIED = sub {
149	warn "error in event callback: @_";	221	warn "error in event callback: @_";
150	};	222	};
151		223
152	my %ext_pkg;	224	#############################################################################
153	my @exts;
154	my @hook;
155		225
156	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
157		227
158	=over 4	228	=over 4
159		229
160	=cut	230	=item dumpval $ref
161		231
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	232	=cut
		233
		234	sub dumpval {
		235	eval {
		236	local $SIG{__DIE__};
		237	my $d;
		238	if (1) {
		239	$d = new Data::Dumper([$_[0]], ["*var"]);
		240	$d->Terse(1);
		241	$d->Indent(2);
		242	$d->Quotekeys(0);
		243	$d->Useqq(1);
		244	#$d->Bless(...);
		245	$d->Seen($_[1]) if @_ > 1;
		246	$d = $d->Dump();
		247	}
		248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		249	$d
		250	} || "[unable to dump $_[0]: '$@']";
		251	}
163		252
164	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
165		254
166	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
167		256
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
176		258
177	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
178		260
179	=cut	261	=cut
180		262
181	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		264
186	=item my $guard = cf::guard { BLOCK }	265	sub to_json ($) { $json_coder->encode ($_[0]) }
187		266	sub from_json ($) { $json_coder->decode ($_[0]) }
188	Run the given callback when the guard object gets destroyed (useful for
189	coroutine cancellations).
190
191	You can call C<< ->cancel >> on the guard object to stop the block from
192	being executed.
193
194	=cut
195
196	sub guard(&) {
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199
200	sub cf::guard::cancel {
201	${$_[0]} = sub { };
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}
207		267
208	=item cf::lock_wait $string	268	=item cf::lock_wait $string
209		269
210	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
211		271
212	=item my $lock = cf::lock_acquire $string	272	=item my $lock = cf::lock_acquire $string
213		273
214	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
215	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,
216	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
217	returned.	277	returned.
218		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
219	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
220	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 $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
221		288
222	=cut	289	=cut
223		290
224	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
225		293
226	sub lock_wait($) {	294	sub lock_wait($) {
227	my ($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#
228		301
229	# wait for lock, if any	302	# wait for lock, if any
230	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
231	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
232	Coro::schedule;	305	Coro::schedule;
…		…
238		311
239	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
240	lock_wait $key;	313	lock_wait $key;
241		314
242	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
243		317
244	cf::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
245	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
247	}	322	}
248	}	323	}
249		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
		331	sub freeze_mainloop {
		332	return unless $TICK_WATCHER->is_active;
		333
		334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
		337	$TICK_WATCHER->stop;
		338	$guard
		339	}
		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	$Coro::current->desc ("timeslot manager");
		360
		361	my $signal = new Coro::Signal;
		362
		363	while () {
		364	next_job:
		365	my $avail = cf::till_tick;
		366	if ($avail > 0.01) {
		367	for (0 .. $#SLOT_QUEUE) {
		368	if ($SLOT_QUEUE[$_][0] < $avail) {
		369	my $job = splice @SLOT_QUEUE, $_, 1, ();
		370	$job->[2]->send;
		371	Coro::cede;
		372	goto next_job;
		373	}
		374	}
		375	}
		376
		377	if (@SLOT_QUEUE) {
		378	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		379	push @cf::WAIT_FOR_TICK, $signal;
		380	$signal->wait;
		381	} else {
		382	Coro::schedule;
		383	}
		384	}
		385	};
		386
		387	sub get_slot($;$$) {
		388	my ($time, $pri, $name) = @_;
		389
		390	$time = $TICK * .6 if $time > $TICK * .6;
		391	my $sig = new Coro::Signal;
		392
		393	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		394	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		395	$SLOT_QUEUE->ready;
		396	$sig->wait;
		397	}
		398
		399	=item cf::async { BLOCK }
		400
		401	Currently the same as Coro::async_pool, meaning you cannot use
		402	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		403	thing you are allowed to do is call C<prio> on it.
		404
		405	=cut
		406
		407	BEGIN { *async = \&Coro::async_pool }
		408
250	=item cf::sync_job { BLOCK }	409	=item cf::sync_job { BLOCK }
251		410
252	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)
253	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
254	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.
255		415
256	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
257	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
258	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
259	fast or be very important.	419	fast or be very important.
…		…
262		422
263	sub sync_job(&) {	423	sub sync_job(&) {
264	my ($job) = @_;	424	my ($job) = @_;
265		425
266	if ($Coro::current == $Coro::main) {	426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
267	# this is the main coro, too bad, we have to block	429	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	430	# till the operation succeeds, freezing the server :/
269		431
		432	LOG llevError, Carp::longmess "sync job";#d#
		433
270	# TODO: use suspend/resume instead	434	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	435	# (but this is cancel-safe)
272	local $FREEZE = 1;	436	my $freeze_guard = freeze_mainloop;
273		437
274	my $busy = 1;	438	my $busy = 1;
275	my @res;	439	my @res;
276		440
277	(Coro::async {	441	(async {
		442	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	443	@res = eval { $job->() };
279	warn $@ if $@;	444	warn $@ if $@;
280	undef $busy;	445	undef $busy;
281	})->prio (Coro::PRIO_MAX);	446	})->prio (Coro::PRIO_MAX);
282		447
283	while ($busy) {	448	while ($busy) {
		449	if (Coro::nready) {
284	Coro::cede_notself;	450	Coro::cede_notself;
285	Event::one_event unless Coro::nready;	451	} else {
		452	Event::one_event;
286	}	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
287		462
288	wantarray ? @res : $res[0]	463	wantarray ? @res : $res[0]
289	} else {	464	} else {
290	# we are in another coroutine, how wonderful, everything just works	465	# we are in another coroutine, how wonderful, everything just works
291		466
292	$job->()	467	$job->()
293	}	468	}
294	}	469	}
295		470
296	=item $coro = cf::coro { BLOCK }	471	=item $coro = cf::async_ext { BLOCK }
297		472
298	Creates and returns a new coro. This coro is automcatially being canceled	473	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	474	extension calling this is being unloaded.
300		475
301	=cut	476	=cut
302		477
303	sub coro(&) {	478	sub async_ext(&) {
304	my $cb = shift;	479	my $cb = shift;
305		480
306	my $coro; $coro = async {	481	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		482
313	$coro->on_destroy (sub {	483	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	484	delete $EXT_CORO{$coro+0};
315	});	485	});
316	$EXT_CORO{$coro+0} = $coro;	486	$EXT_CORO{$coro+0} = $coro;
317		487
318	$coro	488	$coro
319	}	489	}
320		490
321	sub write_runtime {	491	=item fork_call { }, $args
322	my $runtime = cf::localdir . "/runtime";
323		492
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	493	Executes the given code block with the given arguments in a seperate
325	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.
326		497
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	498	=cut
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;
330		499
331	aio_fsync $fh	500	sub fork_call(&@) {
332	and return;	501	my ($cb, @args) = @_;
333		502
334	close $fh	503	# we seemingly have to make a local copy of the whole thing,
335	or return;	504	# otherwise perl prematurely frees the stuff :/
		505	# TODO: investigate and fix (likely this will be rather laborious)
336		506
337	aio_rename "$runtime~", $runtime	507	my @res = Coro::Util::fork_eval {
338	and return;	508	reset_signals;
		509	&$cb
		510	}, @args;
339		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
340	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 });
341	}	651	}
342		652
343	=back	653	=back
344		654
345	=cut	655	=cut
346
347	#############################################################################
348
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466		656
467	#############################################################################	657	#############################################################################
468		658
469	=head2 ATTACHABLE OBJECTS	659	=head2 ATTACHABLE OBJECTS
470		660
…		…
472	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")
473	to it. All such attachable objects support the following methods.	663	to it. All such attachable objects support the following methods.
474		664
475	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>
476	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
477	crossfire+).	667	Crossfire TRT).
478		668
479	=over 4	669	=over 4
480		670
481	=item $attachable->attach ($attachment, key => $value...)	671	=item $attachable->attach ($attachment, key => $value...)
482		672
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	786	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	787	our @CB_MAP = ();
598		788
599	my %attachment;	789	my %attachment;
600		790
		791	sub cf::attachable::thawer_merge {
		792	# simply override everything except _meta
		793	local $_[0]{_meta};
		794	%{$_[0]} = %{$_[1]};
		795	}
		796
601	sub _attach_cb($$$$) {	797	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	798	my ($registry, $event, $prio, $cb) = @_;
603		799
604	use sort 'stable';	800	use sort 'stable';
605		801
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	835	$registry = $CB_TYPE[$object_type] ||= [];
640		836
641	} elsif ($type eq "subtype") {	837	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	838	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	839	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	840	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		841
646	} elsif ($type eq "package") {	842	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	843	my $pkg = shift @arg;
648		844
649	while (my ($name, $id) = each %cb_id) {	845	while (my ($name, $id) = each %cb_id) {
…		…
678	_attach $registry, $klass, @attach;	874	_attach $registry, $klass, @attach;
679	}	875	}
680		876
681	$obj->{$name} = \%arg;	877	$obj->{$name} = \%arg;
682	} else {	878	} else {
683	warn "object uses attachment '$name' that is not available, postponing.\n";	879	warn "object uses attachment '$name' which is not available, postponing.\n";
684	}	880	}
685		881
686	$obj->{_attachment}{$name} = undef;	882	$obj->{_attachment}{$name} = undef;
687	}	883	}
688		884
…		…
690	if (ref $_[0]) {	886	if (ref $_[0]) {
691	_object_attach @_;	887	_object_attach @_;
692	} else {	888	} else {
693	_attach shift->_attach_registry, @_;	889	_attach shift->_attach_registry, @_;
694	}	890	}
		891	_recalc_want;
695	};	892	};
696		893
697	# all those should be optimised	894	# all those should be optimised
698	sub cf::attachable::detach {	895	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	896	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	899	delete $obj->{_attachment}{$name};
703	reattach ($obj);	900	reattach ($obj);
704	} else {	901	} else {
705	Carp::croak "cannot, currently, detach class attachments";	902	Carp::croak "cannot, currently, detach class attachments";
706	}	903	}
		904	_recalc_want;
707	};	905	};
708		906
709	sub cf::attachable::attached {	907	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	908	my ($obj, $name) = @_;
711		909
…		…
726	";	924	";
727	die if $@;	925	die if $@;
728	}	926	}
729		927
730	our $override;	928	our $override;
731	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?
732		930
733	sub override {	931	sub override {
734	$override = 1;	932	$override = 1;
735	@invoke_results = ();	933	@INVOKE_RESULTS = (@_);
736	}	934	}
737		935
738	sub do_invoke {	936	sub do_invoke {
739	my $event = shift;	937	my $event = shift;
740	my $callbacks = shift;	938	my $callbacks = shift;
741		939
742	@invoke_results = ();	940	@INVOKE_RESULTS = ();
743		941
744	local $override;	942	local $override;
745		943
746	for (@$callbacks) {	944	for (@$callbacks) {
747	eval { &{$_->[1]} };	945	eval { &{$_->[1]} };
…		…
764		962
765	Generate an object-specific event with the given arguments.	963	Generate an object-specific event with the given arguments.
766		964
767	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
768	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
769	results (if you must, access C<@cf::invoke_results> directly).	967	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
770		968
771	=back	969	=back
772		970
773	=cut	971	=cut
774		972
775	#############################################################################	973	#############################################################################
776	# object support	974	# object support
		975
		976	sub _object_equal($$);
		977	sub _object_equal($$) {
		978	my ($a, $b) = @_;
		979
		980	return 0 unless (ref $a) eq (ref $b);
		981
		982	if ("HASH" eq ref $a) {
		983	my @ka = keys %$a;
		984	my @kb = keys %$b;
		985
		986	return 0 if @ka != @kb;
		987
		988	for (0 .. $#ka) {
		989	return 0 unless $ka[$_] eq $kb[$_];
		990	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		991	}
		992
		993	} elsif ("ARRAY" eq ref $a) {
		994
		995	return 0 if @$a != @$b;
		996
		997	for (0 .. $#$a) {
		998	return 0 unless _object_equal $a->[$_], $b->[$_];
		999	}
		1000
		1001	} elsif ($a ne $b) {
		1002	return 0;
		1003	}
		1004
		1005	1
		1006	}
		1007
		1008	our $SLOW_MERGES;#d#
		1009	sub _can_merge {
		1010	my ($ob1, $ob2) = @_;
		1011
		1012	++$SLOW_MERGES;#d#
		1013
		1014	# we do the slow way here
		1015	return _object_equal $ob1, $ob2
		1016	}
777		1017
778	sub reattach {	1018	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	1019	# basically do the same as instantiate, without calling instantiate
780	my ($obj) = @_;	1020	my ($obj) = @_;
		1021
		1022	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781		1023
782	my $registry = $obj->registry;	1024	my $registry = $obj->registry;
783		1025
784	@$registry = ();	1026	@$registry = ();
785		1027
…		…
826	sub object_freezer_save {	1068	sub object_freezer_save {
827	my ($filename, $rdata, $objs) = @_;	1069	my ($filename, $rdata, $objs) = @_;
828		1070
829	sync_job {	1071	sync_job {
830	if (length $$rdata) {	1072	if (length $$rdata) {
		1073	utf8::decode (my $decname = $filename);
831	warn sprintf "saving %s (%d,%d)\n",	1074	warn sprintf "saving %s (%d,%d)\n",
832	$filename, length $$rdata, scalar @$objs;	1075	$decname, length $$rdata, scalar @$objs;
833		1076
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1077	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	1078	chmod SAVE_MODE, $fh;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1079	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
837	aio_fsync $fh;	1080	aio_fsync $fh if $cf::USE_FSYNC;
838	close $fh;	1081	close $fh;
839		1082
840	if (@$objs) {	1083	if (@$objs) {
841	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) {
842	chmod SAVE_MODE, $fh;	1085	chmod SAVE_MODE, $fh;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	1086	my $data = Coro::Storable::blocking_nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	1087	aio_write $fh, 0, (length $data), $data, 0;
845	aio_fsync $fh;	1088	aio_fsync $fh if $cf::USE_FSYNC;
846	close $fh;	1089	close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	1090	aio_rename "$filename.pst~", "$filename.pst";
848	}	1091	}
849	} else {	1092	} else {
850	aio_unlink "$filename.pst";	1093	aio_unlink "$filename.pst";
…		…
856	}	1099	}
857	} else {	1100	} else {
858	aio_unlink $filename;	1101	aio_unlink $filename;
859	aio_unlink "$filename.pst";	1102	aio_unlink "$filename.pst";
860	}	1103	}
861	}	1104	};
862	}	1105	}
863		1106
864	sub object_freezer_as_string {	1107	sub object_freezer_as_string {
865	my ($rdata, $objs) = @_;	1108	my ($rdata, $objs) = @_;
866		1109
…		…
878	or return;	1121	or return;
879		1122
880	unless (aio_stat "$filename.pst") {	1123	unless (aio_stat "$filename.pst") {
881	(aio_load "$filename.pst", $av) >= 0	1124	(aio_load "$filename.pst", $av) >= 0
882	or return;	1125	or return;
883	$av = eval { (Storable::thaw $av)->{objs} };
884	}
885		1126
		1127	my $st = eval { Coro::Storable::thaw $av }
		1128	|| eval { my $guard = Coro::Storable::guard; Storable::thaw $av }; #d# compatibility, remove
		1129	$av = $st->{objs};
		1130	}
		1131
		1132	utf8::decode (my $decname = $filename);
886	warn sprintf "loading %s (%d)\n",	1133	warn sprintf "loading %s (%d,%d)\n",
887	$filename, length $data, scalar @{$av || []};#d#	1134	$decname, length $data, scalar @{$av || []};
		1135
888	return ($data, $av);	1136	($data, $av)
889	}	1137	}
		1138
		1139	=head2 COMMAND CALLBACKS
		1140
		1141	=over 4
		1142
		1143	=cut
890		1144
891	#############################################################################	1145	#############################################################################
892	# command handling &c	1146	# command handling &c
893		1147
894	=item cf::register_command $name => \&callback($ob,$args);	1148	=item cf::register_command $name => \&callback($ob,$args);
…		…
907	push @{ $COMMAND{$name} }, [$caller, $cb];	1161	push @{ $COMMAND{$name} }, [$caller, $cb];
908	}	1162	}
909		1163
910	=item cf::register_extcmd $name => \&callback($pl,$packet);	1164	=item cf::register_extcmd $name => \&callback($pl,$packet);
911		1165
912	Register a callbackf ro execution when the client sends an extcmd packet.	1166	Register a callback for execution when the client sends an (synchronous)
		1167	extcmd packet. Ext commands will be processed in the order they are
		1168	received by the server, like other user commands. The first argument is
		1169	the logged-in player. Ext commands can only be processed after a player
		1170	has logged in successfully.
913		1171
914	If the callback returns something, it is sent back as if reply was being	1172	If the callback returns something, it is sent back as if reply was being
915	called.	1173	called.
916		1174
		1175	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1176
		1177	Register a callback for execution when the client sends an (asynchronous)
		1178	exticmd packet. Exti commands are processed by the server as soon as they
		1179	are received, i.e. out of order w.r.t. other commands. The first argument
		1180	is a client socket. Exti commands can be received anytime, even before
		1181	log-in.
		1182
		1183	If the callback returns something, it is sent back as if reply was being
		1184	called.
		1185
917	=cut	1186	=cut
918		1187
919	sub register_extcmd {	1188	sub register_extcmd {
920	my ($name, $cb) = @_;	1189	my ($name, $cb) = @_;
921		1190
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	1191	$EXTCMD{$name} = $cb;
		1192	}
		1193
		1194	sub register_exticmd {
		1195	my ($name, $cb) = @_;
		1196
		1197	$EXTICMD{$name} = $cb;
926	}	1198	}
927		1199
928	cf::player->attach (	1200	cf::player->attach (
929	on_command => sub {	1201	on_command => sub {
930	my ($pl, $name, $params) = @_;	1202	my ($pl, $name, $params) = @_;
…		…
939	cf::override;	1211	cf::override;
940	},	1212	},
941	on_extcmd => sub {	1213	on_extcmd => sub {
942	my ($pl, $buf) = @_;	1214	my ($pl, $buf) = @_;
943		1215
944	my $msg = eval { from_json $buf };	1216	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
945		1217
946	if (ref $msg) {	1218	if (ref $msg) {
		1219	my ($type, $reply, @payload) =
		1220	"ARRAY" eq ref $msg
		1221	? @$msg
		1222	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1223
		1224	my @reply;
		1225
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1226	if (my $cb = $EXTCMD{$type}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	1227	@reply = $cb->($pl, @payload);
949	$pl->ext_reply ($msg->{msgid}, %reply);
950	}
951	}	1228	}
		1229
		1230	$pl->ext_reply ($reply, @reply)
		1231	if $reply;
		1232
952	} else {	1233	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1234	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
954	}	1235	}
955		1236
956	cf::override;	1237	cf::override;
957	},	1238	},
958	);	1239	);
959		1240
960	sub register {
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	1241	sub load_extensions {
		1242	cf::sync_job {
		1243	my %todo;
		1244
		1245	for my $path (<$LIBDIR/*.ext>) {
		1246	next unless -r $path;
		1247
		1248	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1249	my $base = $1;
		1250	my $pkg = $1;
		1251	$pkg =~ s/[^[:word:]]/_/g;
		1252	$pkg = "ext::$pkg";
		1253
		1254	open my $fh, "<:utf8", $path
		1255	or die "$path: $!";
		1256
		1257	my $source = do { local $/; <$fh> };
		1258
		1259	my %ext = (
		1260	path => $path,
		1261	base => $base,
		1262	pkg => $pkg,
		1263	);
		1264
		1265	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1266	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1267
		1268	$ext{source} =
		1269	"package $pkg; use strict; use utf8;\n"
		1270	. "#line 1 \"$path\"\n{\n"
		1271	. $source
		1272	. "\n};\n1";
		1273
		1274	$todo{$base} = \%ext;
		1275	}
		1276
		1277	my %done;
		1278	while (%todo) {
		1279	my $progress;
		1280
		1281	while (my ($k, $v) = each %todo) {
		1282	for (split /,\s*/, $v->{meta}{depends}) {
		1283	goto skip
		1284	unless exists $done{$_};
		1285	}
		1286
		1287	warn "... loading '$k' into '$v->{pkg}'\n";
		1288
		1289	unless (eval $v->{source}) {
		1290	my $msg = $@ ? "$v->{path}: $@\n"
		1291	: "$v->{base}: extension inactive.\n";
		1292
		1293	if (exists $v->{meta}{mandatory}) {
		1294	warn $msg;
		1295	warn "mandatory extension failed to load, exiting.\n";
		1296	exit 1;
		1297	}
		1298
		1299	warn $msg;
		1300	}
		1301
		1302	$done{$k} = delete $todo{$k};
		1303	push @EXTS, $v->{pkg};
		1304	$progress = 1;
		1305	}
		1306
		1307	skip:
		1308	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1309	unless $progress;
		1310	}
		1311	};
		1312	}
		1313
		1314	#############################################################################
		1315
		1316	=back
		1317
		1318	=head2 CORE EXTENSIONS
		1319
		1320	Functions and methods that extend core crossfire objects.
		1321
		1322	=cut
		1323
		1324	package cf::player;
		1325
		1326	use Coro::AIO;
		1327
		1328	=head3 cf::player
		1329
		1330	=over 4
		1331
		1332	=item cf::player::num_playing
		1333
		1334	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1335
		1336	=cut
		1337
		1338	sub num_playing {
		1339	scalar grep
		1340	$_->ob->map
		1341	&& !$_->hidden
		1342	&& !$_->ob->flag (cf::FLAG_WIZ),
		1343	cf::player::list
		1344	}
		1345
		1346	=item cf::player::find $login
		1347
		1348	Returns the given player object, loading it if necessary (might block).
		1349
		1350	=cut
		1351
		1352	sub playerdir($) {
		1353	"$PLAYERDIR/"
		1354	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1355	}
		1356
		1357	sub path($) {
		1358	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1359
		1360	(playerdir $login) . "/playerdata"
		1361	}
		1362
		1363	sub find_active($) {
		1364	$cf::PLAYER{$_[0]}
		1365	and $cf::PLAYER{$_[0]}->active
		1366	and $cf::PLAYER{$_[0]}
		1367	}
		1368
		1369	sub exists($) {
		1370	my ($login) = @_;
		1371
		1372	$cf::PLAYER{$login}
		1373	or cf::sync_job { !aio_stat path $login }
		1374	}
		1375
		1376	sub find($) {
		1377	return $cf::PLAYER{$_[0]} || do {
		1378	my $login = $_[0];
		1379
		1380	my $guard = cf::lock_acquire "user_find:$login";
		1381
		1382	$cf::PLAYER{$_[0]} || do {
		1383	# rename old playerfiles to new ones
		1384	#TODO: remove when no longer required
		1385	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1386	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1387	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1388	aio_unlink +(playerdir $login) . "/$login.pl";
		1389
		1390	my $f = new_from_file cf::object::thawer path $login
		1391	or return;
		1392
		1393	my $pl = cf::player::load_pl $f
		1394	or return;
		1395	local $cf::PLAYER_LOADING{$login} = $pl;
		1396	$f->resolve_delayed_derefs;
		1397	$cf::PLAYER{$login} = $pl
		1398	}
		1399	}
		1400	}
		1401
		1402	sub save($) {
		1403	my ($pl) = @_;
		1404
		1405	return if $pl->{deny_save};
		1406
		1407	my $path = path $pl;
		1408	my $guard = cf::lock_acquire "user_save:$path";
		1409
		1410	return if $pl->{deny_save};
		1411
		1412	aio_mkdir playerdir $pl, 0770;
		1413	$pl->{last_save} = $cf::RUNTIME;
		1414
		1415	$pl->save_pl ($path);
		1416	cf::cede_to_tick;
		1417	}
		1418
		1419	sub new($) {
		1420	my ($login) = @_;
		1421
		1422	my $self = create;
		1423
		1424	$self->ob->name ($login);
		1425	$self->{deny_save} = 1;
		1426
		1427	$cf::PLAYER{$login} = $self;
		1428
		1429	$self
		1430	}
		1431
		1432	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1433
		1434	=cut
		1435
		1436	sub send_msg {
		1437	my $ns = shift->ns
		1438	or return;
		1439	$ns->send_msg (@_);
		1440	}
		1441
		1442	=item $pl->quit_character
		1443
		1444	Nukes the player without looking back. If logged in, the connection will
		1445	be destroyed. May block for a long time.
		1446
		1447	=cut
		1448
		1449	sub quit_character {
		1450	my ($pl) = @_;
		1451
		1452	my $name = $pl->ob->name;
		1453
		1454	$pl->{deny_save} = 1;
		1455	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1456
		1457	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1458	$pl->deactivate;
		1459	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1460	$pl->ns->destroy if $pl->ns;
		1461
		1462	my $path = playerdir $pl;
		1463	my $temp = "$path~$cf::RUNTIME~deleting~";
		1464	aio_rename $path, $temp;
		1465	delete $cf::PLAYER{$pl->ob->name};
		1466	$pl->destroy;
		1467
		1468	my $prefix = qr<^~\Q$name\E/>;
		1469
		1470	# nuke player maps
		1471	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1472
		1473	IO::AIO::aio_rmtree $temp;
		1474	}
		1475
		1476	=item $pl->kick
		1477
		1478	Kicks a player out of the game. This destroys the connection.
		1479
		1480	=cut
		1481
		1482	sub kick {
		1483	my ($pl, $kicker) = @_;
		1484
		1485	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1486	$pl->killer ("kicked");
		1487	$pl->ns->destroy;
		1488	}
		1489
		1490	=item cf::player::list_logins
		1491
		1492	Returns am arrayref of all valid playernames in the system, can take a
		1493	while and may block, so not sync_job-capable, ever.
		1494
		1495	=cut
		1496
		1497	sub list_logins {
		1498	my $dirs = aio_readdir $PLAYERDIR
		1499	or return [];
		1500
		1501	my @logins;
		1502
		1503	for my $login (@$dirs) {
		1504	my $path = path $login;
		1505
		1506	# a .pst is a dead give-away for a valid player
		1507	unless (-e "$path.pst") {
		1508	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1509	aio_read $fh, 0, 512, my $buf, 0 or next;
		1510	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1511	}
		1512
		1513	utf8::decode $login;
		1514	push @logins, $login;
		1515	}
		1516
		1517	\@logins
		1518	}
		1519
		1520	=item $player->maps
		1521
		1522	Returns an arrayref of map paths that are private for this
		1523	player. May block.
		1524
		1525	=cut
		1526
		1527	sub maps($) {
		1528	my ($pl) = @_;
		1529
		1530	$pl = ref $pl ? $pl->ob->name : $pl;
		1531
		1532	my $files = aio_readdir playerdir $pl
		1533	or return;
		1534
		1535	my @paths;
		1536
		1537	for (@$files) {
		1538	utf8::decode $_;
		1539	next if /\.(?:pl|pst)$/;
		1540	next unless /^$PATH_SEP/o;
		1541
		1542	push @paths, cf::map::normalise "~$pl/$_";
		1543	}
		1544
		1545	\@paths
		1546	}
		1547
		1548	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1549
		1550	Expand crossfire pod fragments into protocol xml.
		1551
		1552	=cut
		1553
		1554	sub expand_cfpod {
		1555	((my $self), (local $_)) = @_;
		1556
		1557	# escape & and <
		1558	s/&/&amp;/g;
		1559	s/(?<![BIUGHT])</&lt;/g;
		1560
		1561	# this is buggy, it needs to properly take care of nested <'s
		1562
		1563	1 while
		1564	# replace B<>, I<>, U<> etc.
		1565	s/B<([^\>]*)>/<b>$1<\/b>/
		1566	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1567	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1568	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1569	# replace G<male|female> tags
		1570	|| s{G<([^>|]*)\|([^>]*)>}{
		1571	$self->gender ? $2 : $1
		1572	}ge
		1573	# replace H<hint text>
		1574	|| s{H<([^\>]*)>}
		1575	{
		1576	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1577	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1578	"")
		1579	[$self->{hintmode}]
		1580	}ge;
		1581
		1582	# create single paragraphs (very hackish)
		1583	s/(?<=\S)\n(?=\w)/ /g;
		1584
		1585	# compress some whitespace
		1586	s/\s+\n/\n/g; # ws line-ends
		1587	s/\n\n+/\n/g; # double lines
		1588	s/^\n+//; # beginning lines
		1589	s/\n+$//; # ending lines
		1590
		1591	$_
		1592	}
		1593
		1594	sub hintmode {
		1595	$_[0]{hintmode} = $_[1] if @_ > 1;
		1596	$_[0]{hintmode}
		1597	}
		1598
		1599	=item $player->ext_reply ($msgid, @msg)
		1600
		1601	Sends an ext reply to the player.
		1602
		1603	=cut
		1604
		1605	sub ext_reply($$@) {
		1606	my ($self, $id, @msg) = @_;
		1607
		1608	$self->ns->ext_reply ($id, @msg)
		1609	}
		1610
		1611	=item $player->ext_msg ($type, @msg)
		1612
		1613	Sends an ext event to the client.
		1614
		1615	=cut
		1616
		1617	sub ext_msg($$@) {
		1618	my ($self, $type, @msg) = @_;
		1619
		1620	$self->ns->ext_msg ($type, @msg);
		1621	}
		1622
		1623	=head3 cf::region
		1624
		1625	=over 4
		1626
		1627	=cut
		1628
		1629	package cf::region;
		1630
		1631	=item cf::region::find_by_path $path
		1632
		1633	Tries to decuce the likely region for a map knowing only its path.
		1634
		1635	=cut
		1636
		1637	sub find_by_path($) {
967	my ($path) = @_;	1638	my ($path) = @_;
968		1639
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1640	my ($match, $specificity);
970	my $base = $1;
971	my $pkg = $1;
972	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";
974		1641
975	warn "loading '$path' into '$pkg'\n";	1642	for my $region (list) {
976		1643	if ($region->{match} && $path =~ $region->{match}) {
977	open my $fh, "<:utf8", $path	1644	($match, $specificity) = ($region, $region->specificity)
978	or die "$path: $!";	1645	if $region->specificity > $specificity;
979		1646	}
980	my $source =
981	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })
984	. "\n};\n1";
985
986	eval $source
987	or die $@ ? "$path: $@\n"
988	: "extension disabled.\n";
989
990	push @exts, $pkg;
991	$ext_pkg{$base} = $pkg;
992
993	# no strict 'refs';
994	# @{"$pkg\::ISA"} = ext::;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }	1647	}
1009		1648
1010	# remove commands	1649	$match
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}
1019	}
1020
1021	# remove extcmds
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}
1035
1036	sub load_extensions {
1037	for my $ext (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;
1039	eval {
1040	load_extension $ext;
1041	1
1042	} or warn "$ext not loaded: $@";
1043	}
1044	}
1045
1046	#############################################################################
1047	# load/save/clean perl data associated with a map
1048
1049	*cf::mapsupport::on_clean = sub {
1050	my ($map) = @_;
1051
1052	my $path = $map->tmpname;
1053	defined $path or return;
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}
1066
1067	# TODO: compatibility cruft, remove when no longer needed
1068	cf::player->attach (
1069	on_load => sub {
1070	my ($pl, $path) = @_;
1071
1072	for my $o (all_objects $pl->ob) {
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1074	$o->set_ob_key_value ("_perl_data");
1075
1076	%$o = %{ Storable::thaw pack "H*", $value };
1077	}
1078	}
1079	},
1080	);
1081
1082	#############################################################################
1083
1084	=head2 CORE EXTENSIONS
1085
1086	Functions and methods that extend core crossfire objects.
1087
1088	=head3 cf::player
1089
1090	=over 4
1091
1092	=item cf::player::exists $login
1093
1094	Returns true when the given account exists.
1095
1096	=cut
1097
1098	sub cf::player::exists($) {
1099	cf::player::find $_[0]
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1101	}
1102
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)
1104
1105	Sends an ext reply to the player.
1106
1107	=cut
1108
1109	sub cf::player::ext_reply($$$%) {
1110	my ($self, $id, %msg) = @_;
1111
1112	$msg{msgid} = $id;
1113
1114	$self->send ("ext " . to_json \%msg);
1115	}	1650	}
1116		1651
1117	=back	1652	=back
1118
1119		1653
1120	=head3 cf::map	1654	=head3 cf::map
1121		1655
1122	=over 4	1656	=over 4
1123		1657
…		…
1126	package cf::map;	1660	package cf::map;
1127		1661
1128	use Fcntl;	1662	use Fcntl;
1129	use Coro::AIO;	1663	use Coro::AIO;
1130		1664
		1665	use overload
		1666	'""' => \&as_string,
		1667	fallback => 1;
		1668
1131	our $MAX_RESET = 7200;	1669	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1670	our $DEFAULT_RESET = 3000;
1133		1671
1134	sub generate_random_map {	1672	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1673	my ($self, $rmp) = @_;
1136
1137	# mit "rum" bekleckern, nicht	1674	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1675	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1676	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1677	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1678	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1679	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1680	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1681	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1682	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1683	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1684	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1685	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})	1686	(cf::region::find $rmp->{region}), $rmp->{custom}
		1687	)
		1688	}
		1689
		1690	=item cf::map->register ($regex, $prio)
		1691
		1692	Register a handler for the map path matching the given regex at the
		1693	givne priority (higher is better, built-in handlers have priority 0, the
		1694	default).
		1695
		1696	=cut
		1697
		1698	sub register {
		1699	my (undef, $regex, $prio) = @_;
		1700	my $pkg = caller;
		1701
		1702	no strict;
		1703	push @{"$pkg\::ISA"}, __PACKAGE__;
		1704
		1705	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1706	}
		1707
		1708	# also paths starting with '/'
		1709	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1710
		1711	sub thawer_merge {
		1712	my ($self, $merge) = @_;
		1713
		1714	# we have to keep some variables in memory intact
		1715	local $self->{path};
		1716	local $self->{load_path};
		1717
		1718	$self->SUPER::thawer_merge ($merge);
		1719	}
		1720
		1721	sub normalise {
		1722	my ($path, $base) = @_;
		1723
		1724	$path = "$path"; # make sure its a string
		1725
		1726	$path =~ s/\.map$//;
		1727
		1728	# map plan:
		1729	#
		1730	# /! non-realised random map exit (special hack!)
		1731	# {... are special paths that are not being touched
		1732	# ?xxx/... are special absolute paths
		1733	# ?random/... random maps
		1734	# /... normal maps
		1735	# ~user/... per-player map of a specific user
		1736
		1737	$path =~ s/$PATH_SEP/\//go;
		1738
		1739	# treat it as relative path if it starts with
		1740	# something that looks reasonable
		1741	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1742	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1743
		1744	$base =~ s{[^/]+/?$}{};
		1745	$path = "$base/$path";
		1746	}
		1747
		1748	for ($path) {
		1749	redo if s{//}{/};
		1750	redo if s{/\.?/}{/};
		1751	redo if s{/[^/]+/\.\./}{/};
		1752	}
		1753
		1754	$path
		1755	}
		1756
		1757	sub new_from_path {
		1758	my (undef, $path, $base) = @_;
		1759
		1760	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1761
		1762	$path = normalise $path, $base;
		1763
		1764	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1765	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1766	my $self = bless cf::map::new, $pkg;
		1767	$self->{path} = $path; $self->path ($path);
		1768	$self->init; # pass $1 etc.
		1769	return $self;
		1770	}
		1771	}
		1772
		1773	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1774	()
		1775	}
		1776
		1777	sub init {
		1778	my ($self) = @_;
		1779
		1780	$self
		1781	}
		1782
		1783	sub as_string {
		1784	my ($self) = @_;
		1785
		1786	"$self->{path}"
		1787	}
		1788
		1789	# the displayed name, this is a one way mapping
		1790	sub visible_name {
		1791	&as_string
		1792	}
		1793
		1794	# the original (read-only) location
		1795	sub load_path {
		1796	my ($self) = @_;
		1797
		1798	"$MAPDIR/$self->{path}.map"
		1799	}
		1800
		1801	# the temporary/swap location
		1802	sub save_path {
		1803	my ($self) = @_;
		1804
		1805	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1806	"$TMPDIR/$path.map"
		1807	}
		1808
		1809	# the unique path, undef == no special unique path
		1810	sub uniq_path {
		1811	my ($self) = @_;
		1812
		1813	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1814	"$UNIQUEDIR/$path"
1151	}	1815	}
1152		1816
1153	# and all this just because we cannot iterate over	1817	# and all this just because we cannot iterate over
1154	# all maps in C++...	1818	# all maps in C++...
1155	sub change_all_map_light {	1819	sub change_all_map_light {
1156	my ($change) = @_;	1820	my ($change) = @_;
1157		1821
1158	$_->change_map_light ($change) for values %cf::MAP;	1822	$_->change_map_light ($change)
		1823	for grep $_->outdoor, values %cf::MAP;
1159	}	1824	}
1160		1825
		1826	sub decay_objects {
		1827	my ($self) = @_;
		1828
		1829	return if $self->{deny_reset};
		1830
		1831	$self->do_decay_objects;
		1832	}
		1833
		1834	sub unlink_save {
		1835	my ($self) = @_;
		1836
		1837	utf8::encode (my $save = $self->save_path);
		1838	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1839	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1840	}
		1841
1161	sub try_load_header($) {	1842	sub load_header_from($) {
1162	my ($path) = @_;	1843	my ($self, $path) = @_;
1163		1844
1164	utf8::encode $path;	1845	utf8::encode $path;
1165	aio_open $path, O_RDONLY, 0	1846	my $f = new_from_file cf::object::thawer $path
1166	or return;	1847	or return;
1167		1848
1168	my $map = cf::map::new	1849	$self->_load_header ($f)
1169	or return;	1850	or return;
1170		1851
1171	$map->load_header ($path)	1852	local $MAP_LOADING{$self->{path}} = $self;
		1853	$f->resolve_delayed_derefs;
		1854
		1855	$self->{load_path} = $path;
		1856
		1857	1
		1858	}
		1859
		1860	sub load_header_orig {
		1861	my ($self) = @_;
		1862
		1863	$self->load_header_from ($self->load_path)
		1864	}
		1865
		1866	sub load_header_temp {
		1867	my ($self) = @_;
		1868
		1869	$self->load_header_from ($self->save_path)
		1870	}
		1871
		1872	sub prepare_temp {
		1873	my ($self) = @_;
		1874
		1875	$self->last_access ((delete $self->{last_access})
		1876	|| $cf::RUNTIME); #d#
		1877	# safety
		1878	$self->{instantiate_time} = $cf::RUNTIME
		1879	if $self->{instantiate_time} > $cf::RUNTIME;
		1880	}
		1881
		1882	sub prepare_orig {
		1883	my ($self) = @_;
		1884
		1885	$self->{load_original} = 1;
		1886	$self->{instantiate_time} = $cf::RUNTIME;
		1887	$self->last_access ($cf::RUNTIME);
		1888	$self->instantiate;
		1889	}
		1890
		1891	sub load_header {
		1892	my ($self) = @_;
		1893
		1894	if ($self->load_header_temp) {
		1895	$self->prepare_temp;
		1896	} else {
		1897	$self->load_header_orig
1172	or return;	1898	or return;
		1899	$self->prepare_orig;
		1900	}
1173		1901
1174	$map->{load_path} = $path;	1902	$self->{deny_reset} = 1
		1903	if $self->no_reset;
1175		1904
1176	$map	1905	$self->default_region (cf::region::find_by_path $self->{path})
1177	}	1906	unless $self->default_region;
1178		1907
		1908	1
		1909	}
		1910
		1911	sub find;
1179	sub find_map {	1912	sub find {
1180	my ($path, $origin) = @_;	1913	my ($path, $origin) = @_;
1181		1914
1182	#warn "find_map<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1915	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1916
		1917	cf::lock_wait "map_data:$path";#d#remove
1187	cf::lock_wait "map_find:$key";	1918	cf::lock_wait "map_find:$path";
1188		1919
1189	$cf::MAP{$key} || do {	1920	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1921	my $guard1 = cf::lock_acquire "map_find:$path";
		1922	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1191		1923
1192	# do it the slow way	1924	my $map = new_from_path cf::map $path
1193	my $map = try_load_header $path->save_path;
1194
1195	if ($map) {
1196	# safety
1197	$map->{instantiate_time} = $cf::RUNTIME
1198	if $map->{instantiate_time} > $cf::RUNTIME;
1199	} else {
1200	if (my $rmp = $path->random_map_params) {
1201	$map = generate_random_map $key, $rmp;
1202	} else {
1203	$map = try_load_header $path->load_path;
1204	}
1205
1206	$map or return;	1925	or return;
1207		1926
1208	$map->{load_original} = 1;
1209	$map->{instantiate_time} = $cf::RUNTIME;
1210	$map->instantiate;
1211
1212	# per-player maps become, after loading, normal maps
1213	$map->per_player (0) if $path->{user_rel};
1214	}
1215
1216	$map->path ($key);
1217	$map->{path} = $path;
1218	$map->{last_save} = $cf::RUNTIME;	1927	$map->{last_save} = $cf::RUNTIME;
1219	$map->last_access ($cf::RUNTIME);
1220		1928
1221	if ($map->should_reset) {	1929	$map->load_header
		1930	or return;
		1931
		1932	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1933	# doing this can freeze the server in a sync job, obviously
		1934	#$cf::WAIT_FOR_TICK->wait;
		1935	undef $guard1;
		1936	undef $guard2;
1222	$map->reset;	1937	$map->reset;
1223	$map = find_map $path;	1938	return find $path;
1224	}	1939	}
1225		1940
1226	$cf::MAP{$key} = $map	1941	$cf::MAP{$path} = $map
1227	}	1942	}
1228	}	1943	}
		1944
		1945	sub pre_load { }
		1946	sub post_load { }
1229		1947
1230	sub load {	1948	sub load {
1231	my ($self) = @_;	1949	my ($self) = @_;
1232		1950
		1951	local $self->{deny_reset} = 1; # loading can take a long time
		1952
1233	my $path = $self->{path};	1953	my $path = $self->{path};
		1954
		1955	{
1234	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1956	my $guard = cf::lock_acquire "map_data:$path";
1235		1957
		1958	return unless $self->valid;
1236	return if $self->in_memory != cf::MAP_SWAPPED;	1959	return unless $self->in_memory == cf::MAP_SWAPPED;
1237		1960
1238	$self->in_memory (cf::MAP_LOADING);	1961	$self->in_memory (cf::MAP_LOADING);
1239		1962
1240	$self->alloc;	1963	$self->alloc;
1241	$self->load_objects ($self->{load_path}, 1)	1964
		1965	$self->pre_load;
		1966	cf::cede_to_tick;
		1967
		1968	my $f = new_from_file cf::object::thawer $self->{load_path};
		1969	$f->skip_block;
		1970	$self->_load_objects ($f)
1242	or return;	1971	or return;
1243		1972
1244	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1973	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1245	if delete $self->{load_original};	1974	if delete $self->{load_original};
1246		1975
1247	if (my $uniq = $path->uniq_path) {	1976	if (my $uniq = $self->uniq_path) {
1248	utf8::encode $uniq;	1977	utf8::encode $uniq;
1249	if (aio_open $uniq, O_RDONLY, 0) {	1978	unless (aio_stat $uniq) {
		1979	if (my $f = new_from_file cf::object::thawer $uniq) {
1250	$self->clear_unique_items;	1980	$self->clear_unique_items;
1251	$self->load_objects ($uniq, 0);	1981	$self->_load_objects ($f);
		1982	$f->resolve_delayed_derefs;
		1983	}
1252	}	1984	}
1253	}	1985	}
1254		1986
		1987	$f->resolve_delayed_derefs;
		1988
		1989	cf::cede_to_tick;
1255	# now do the right thing for maps	1990	# now do the right thing for maps
1256	$self->link_multipart_objects;	1991	$self->link_multipart_objects;
1257
1258	if ($self->{path}->is_style_map) {
1259	$self->{deny_save} = 1;
1260	$self->{deny_reset} = 1;
1261	} else {
1262	$self->fix_auto_apply;
1263	$self->decay_objects;
1264	$self->update_buttons;
1265	$self->set_darkness_map;
1266	$self->difficulty ($self->estimate_difficulty)	1992	$self->difficulty ($self->estimate_difficulty)
1267	unless $self->difficulty;	1993	unless $self->difficulty;
		1994	cf::cede_to_tick;
		1995
		1996	unless ($self->{deny_activate}) {
		1997	$self->decay_objects;
		1998	$self->fix_auto_apply;
		1999	$self->update_buttons;
		2000	cf::cede_to_tick;
		2001	$self->set_darkness_map;
		2002	cf::cede_to_tick;
1268	$self->activate;	2003	$self->activate;
1269	}	2004	}
1270		2005
		2006	$self->{last_save} = $cf::RUNTIME;
		2007	$self->last_access ($cf::RUNTIME);
		2008
1271	$self->in_memory (cf::MAP_IN_MEMORY);	2009	$self->in_memory (cf::MAP_IN_MEMORY);
1272	}	2010	}
1273		2011
1274	sub load_map_sync {	2012	$self->post_load;
		2013	}
		2014
		2015	sub customise_for {
		2016	my ($self, $ob) = @_;
		2017
		2018	return find "~" . $ob->name . "/" . $self->{path}
		2019	if $self->per_player;
		2020
		2021	# return find "?party/" . $ob->name . "/" . $self->{path}
		2022	# if $self->per_party;
		2023
		2024	$self
		2025	}
		2026
		2027	# find and load all maps in the 3x3 area around a map
		2028	sub load_neighbours {
		2029	my ($map) = @_;
		2030
		2031	my @neigh; # diagonal neighbours
		2032
		2033	for (0 .. 3) {
		2034	my $neigh = $map->tile_path ($_)
		2035	or next;
		2036	$neigh = find $neigh, $map
		2037	or next;
		2038	$neigh->load;
		2039
		2040	push @neigh,
		2041	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2042	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2043	}
		2044
		2045	for (grep defined $_->[0], @neigh) {
		2046	my ($path, $origin) = @$_;
		2047	my $neigh = find $path, $origin
		2048	or next;
		2049	$neigh->load;
		2050	}
		2051	}
		2052
		2053	sub find_sync {
1275	my ($path, $origin) = @_;	2054	my ($path, $origin) = @_;
1276		2055
1277	#warn "load_map_sync<$path, $origin>\n";#d#	2056	cf::sync_job { find $path, $origin }
		2057	}
1278		2058
1279	cf::sync_job {	2059	sub do_load_sync {
1280	my $map = cf::map::find_map $path, $origin	2060	my ($map) = @_;
1281	or return;	2061
1282	$map->load;	2062	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1283	$map	2063	if $Coro::current == $Coro::main;
		2064
		2065	cf::sync_job { $map->load };
		2066	}
		2067
		2068	our %MAP_PREFETCH;
		2069	our $MAP_PREFETCHER = undef;
		2070
		2071	sub find_async {
		2072	my ($path, $origin, $load) = @_;
		2073
		2074	$path = normalise $path, $origin && $origin->{path};
		2075
		2076	if (my $map = $cf::MAP{$path}) {
		2077	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2078	}
		2079
		2080	$MAP_PREFETCH{$path} |= $load;
		2081
		2082	$MAP_PREFETCHER ||= cf::async {
		2083	$Coro::current->{desc} = "map prefetcher";
		2084
		2085	while (%MAP_PREFETCH) {
		2086	while (my ($k, $v) = each %MAP_PREFETCH) {
		2087	if (my $map = find $k) {
		2088	$map->load if $v;
		2089	}
		2090
		2091	delete $MAP_PREFETCH{$k};
		2092	}
		2093	}
		2094	undef $MAP_PREFETCHER;
1284	}	2095	};
		2096	$MAP_PREFETCHER->prio (6);
		2097
		2098	()
1285	}	2099	}
1286		2100
1287	sub save {	2101	sub save {
1288	my ($self) = @_;	2102	my ($self) = @_;
1289		2103
		2104	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2105
1290	$self->{last_save} = $cf::RUNTIME;	2106	$self->{last_save} = $cf::RUNTIME;
1291		2107
1292	return unless $self->dirty;	2108	return unless $self->dirty;
1293		2109
1294	my $save = $self->{path}->save_path; utf8::encode $save;	2110	my $save = $self->save_path; utf8::encode $save;
1295	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2111	my $uniq = $self->uniq_path; utf8::encode $uniq;
1296		2112
1297	$self->{load_path} = $save;	2113	$self->{load_path} = $save;
1298		2114
1299	return if $self->{deny_save};	2115	return if $self->{deny_save};
1300		2116
		2117	local $self->{last_access} = $self->last_access;#d#
		2118
		2119	cf::async {
		2120	$Coro::current->{desc} = "map player save";
		2121	$_->contr->save for $self->players;
		2122	};
		2123
1301	if ($uniq) {	2124	if ($uniq) {
1302	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2125	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1303	$self->save_objects ($uniq, cf::IO_UNIQUES);	2126	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1304	} else {	2127	} else {
1305	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2128	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1306	}	2129	}
1307	}	2130	}
1308		2131
1309	sub swap_out {	2132	sub swap_out {
1310	my ($self) = @_;	2133	my ($self) = @_;
		2134
		2135	# save first because save cedes
		2136	$self->save;
		2137
		2138	my $lock = cf::lock_acquire "map_data:$self->{path}";
1311		2139
1312	return if $self->players;	2140	return if $self->players;
1313	return if $self->in_memory != cf::MAP_IN_MEMORY;	2141	return if $self->in_memory != cf::MAP_IN_MEMORY;
1314	return if $self->{deny_save};	2142	return if $self->{deny_save};
1315		2143
		2144	$self->in_memory (cf::MAP_SWAPPED);
		2145
1316	$self->save;	2146	$self->deactivate;
		2147	$_->clear_links_to ($self) for values %cf::MAP;
1317	$self->clear;	2148	$self->clear;
1318	$self->in_memory (cf::MAP_SWAPPED);
1319	}	2149	}
1320		2150
1321	sub reset_at {	2151	sub reset_at {
1322	my ($self) = @_;	2152	my ($self) = @_;
1323		2153
1324	# TODO: safety, remove and allow resettable per-player maps	2154	# TODO: safety, remove and allow resettable per-player maps
1325	return 1e99 if $self->{path}{user_rel};
1326	return 1e99 if $self->{deny_reset};	2155	return 1e99 if $self->{deny_reset};
1327		2156
1328	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2157	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1329	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2158	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1330		2159
…		…
1335	my ($self) = @_;	2164	my ($self) = @_;
1336		2165
1337	$self->reset_at <= $cf::RUNTIME	2166	$self->reset_at <= $cf::RUNTIME
1338	}	2167	}
1339		2168
1340	sub unlink_save {
1341	my ($self) = @_;
1342
1343	utf8::encode (my $save = $self->{path}->save_path);
1344	aioreq_pri 3; IO::AIO::aio_unlink $save;
1345	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1346	}
1347
1348	sub rename {
1349	my ($self, $new_path) = @_;
1350
1351	$self->unlink_save;
1352
1353	delete $cf::MAP{$self->path};
1354	$self->{path} = new cf::path $new_path;
1355	$self->path ($self->{path}->as_string);
1356	$cf::MAP{$self->path} = $self;
1357
1358	$self->save;
1359	}
1360
1361	sub reset {	2169	sub reset {
1362	my ($self) = @_;	2170	my ($self) = @_;
1363		2171
		2172	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2173
1364	return if $self->players;	2174	return if $self->players;
1365	return if $self->{path}{user_rel};#d#
1366		2175
1367	warn "resetting map ", $self->path;#d#	2176	warn "resetting map ", $self->path;
		2177
		2178	$self->in_memory (cf::MAP_SWAPPED);
		2179
		2180	# need to save uniques path
		2181	unless ($self->{deny_save}) {
		2182	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2183
		2184	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2185	if $uniq;
		2186	}
1368		2187
1369	delete $cf::MAP{$self->path};	2188	delete $cf::MAP{$self->path};
1370		2189
		2190	$self->deactivate;
1371	$_->clear_links_to ($self) for values %cf::MAP;	2191	$_->clear_links_to ($self) for values %cf::MAP;
		2192	$self->clear;
1372		2193
1373	$self->unlink_save;	2194	$self->unlink_save;
1374	$self->destroy;	2195	$self->destroy;
1375	}	2196	}
1376		2197
1377	my $nuke_counter = "aaaa";	2198	my $nuke_counter = "aaaa";
1378		2199
1379	sub nuke {	2200	sub nuke {
1380	my ($self) = @_;	2201	my ($self) = @_;
1381		2202
		2203	{
		2204	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2205
		2206	delete $cf::MAP{$self->path};
		2207
		2208	$self->unlink_save;
		2209
		2210	bless $self, "cf::map";
		2211	delete $self->{deny_reset};
1382	$self->{deny_save} = 1;	2212	$self->{deny_save} = 1;
1383	$self->reset_timeout (1);	2213	$self->reset_timeout (1);
1384	$self->rename ("{nuke}/" . ($nuke_counter++));	2214	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2215
		2216	$cf::MAP{$self->path} = $self;
		2217	}
		2218
1385	$self->reset; # polite request, might not happen	2219	$self->reset; # polite request, might not happen
1386	}	2220	}
1387		2221
1388	sub customise_for {	2222	=item $maps = cf::map::tmp_maps
1389	my ($map, $ob) = @_;
1390		2223
1391	if ($map->per_player) {	2224	Returns an arrayref with all map paths of currently instantiated and saved
1392	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2225	maps. May block.
		2226
		2227	=cut
		2228
		2229	sub tmp_maps() {
1393	}	2230	[
1394		2231	map {
1395	$map	2232	utf8::decode $_;
		2233	/\.map$/
		2234	? normalise $_
		2235	: ()
		2236	} @{ aio_readdir $TMPDIR or [] }
		2237	]
1396	}	2238	}
1397		2239
1398	sub emergency_save {	2240	=item $maps = cf::map::random_maps
1399	local $cf::FREEZE = 1;
1400		2241
1401	warn "enter emergency map save\n";	2242	Returns an arrayref with all map paths of currently instantiated and saved
		2243	random maps. May block.
1402		2244
1403	cf::sync_job {	2245	=cut
1404	warn "begin emergency map save\n";
1405	$_->save for values %cf::MAP;
1406	};
1407		2246
1408	warn "end emergency map save\n";	2247	sub random_maps() {
		2248	[
		2249	map {
		2250	utf8::decode $_;
		2251	/\.map$/
		2252	? normalise "?random/$_"
		2253	: ()
		2254	} @{ aio_readdir $RANDOMDIR or [] }
		2255	]
		2256	}
		2257
		2258	=item cf::map::unique_maps
		2259
		2260	Returns an arrayref of paths of all shared maps that have
		2261	instantiated unique items. May block.
		2262
		2263	=cut
		2264
		2265	sub unique_maps() {
		2266	[
		2267	map {
		2268	utf8::decode $_;
		2269	/\.map$/
		2270	? normalise $_
		2271	: ()
		2272	} @{ aio_readdir $UNIQUEDIR or [] }
		2273	]
1409	}	2274	}
1410		2275
1411	package cf;	2276	package cf;
1412		2277
1413	=back	2278	=back
1414		2279
		2280	=head3 cf::object
		2281
		2282	=cut
		2283
		2284	package cf::object;
		2285
		2286	=over 4
		2287
		2288	=item $ob->inv_recursive
		2289
		2290	Returns the inventory of the object _and_ their inventories, recursively.
		2291
		2292	=cut
		2293
		2294	sub inv_recursive_;
		2295	sub inv_recursive_ {
		2296	map { $_, inv_recursive_ $_->inv } @_
		2297	}
		2298
		2299	sub inv_recursive {
		2300	inv_recursive_ inv $_[0]
		2301	}
		2302
		2303	=item $ref = $ob->ref
		2304
		2305	creates and returns a persistent reference to an objetc that can be stored as a string.
		2306
		2307	=item $ob = cf::object::deref ($refstring)
		2308
		2309	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2310	even if the object actually exists. May block.
		2311
		2312	=cut
		2313
		2314	sub deref {
		2315	my ($ref) = @_;
		2316
		2317	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2318	my ($uuid, $name) = ($1, $2);
		2319	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2320	or return;
		2321	$pl->ob->uuid eq $uuid
		2322	or return;
		2323
		2324	$pl->ob
		2325	} else {
		2326	warn "$ref: cannot resolve object reference\n";
		2327	undef
		2328	}
		2329	}
		2330
		2331	package cf;
		2332
		2333	=back
1415		2334
1416	=head3 cf::object::player	2335	=head3 cf::object::player
1417		2336
1418	=over 4	2337	=over 4
1419		2338
…		…
1433		2352
1434	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2353	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1435		2354
1436	if ($self->{record_replies}) {	2355	if ($self->{record_replies}) {
1437	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2356	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2357
1438	} else {	2358	} else {
		2359	my $pl = $self->contr;
		2360
		2361	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2362	my $dialog = $pl->{npc_dialog};
		2363	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2364
		2365	} else {
1439	$msg = $npc->name . " says: $msg" if $npc;	2366	$msg = $npc->name . " says: $msg" if $npc;
1440	$self->message ($msg, $flags);	2367	$self->message ($msg, $flags);
		2368	}
1441	}	2369	}
		2370	}
		2371
		2372	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2373
		2374	=cut
		2375
		2376	sub cf::object::send_msg {
		2377	my $pl = shift->contr
		2378	or return;
		2379	$pl->send_msg (@_);
1442	}	2380	}
1443		2381
1444	=item $player_object->may ("access")	2382	=item $player_object->may ("access")
1445		2383
1446	Returns wether the given player is authorized to access resource "access"	2384	Returns wether the given player is authorized to access resource "access"
…		…
1459		2397
1460	=item $player_object->enter_link	2398	=item $player_object->enter_link
1461		2399
1462	Freezes the player and moves him/her to a special map (C<{link}>).	2400	Freezes the player and moves him/her to a special map (C<{link}>).
1463		2401
1464	The player should be reaosnably safe there for short amounts of time. You	2402	The player should be reasonably safe there for short amounts of time. You
1465	I<MUST> call C<leave_link> as soon as possible, though.	2403	I<MUST> call C<leave_link> as soon as possible, though.
1466		2404
		2405	Will never block.
		2406
1467	=item $player_object->leave_link ($map, $x, $y)	2407	=item $player_object->leave_link ($map, $x, $y)
1468		2408
1469	Moves the player out of the specila link map onto the given map. If the	2409	Moves the player out of the special C<{link}> map onto the specified
1470	map is not valid (or omitted), the player will be moved back to the	2410	map. If the map is not valid (or omitted), the player will be moved back
1471	location he/she was before the call to C<enter_link>, or, if that fails,	2411	to the location he/she was before the call to C<enter_link>, or, if that
1472	to the emergency map position.	2412	fails, to the emergency map position.
1473		2413
1474	Might block.	2414	Might block.
1475		2415
1476	=cut	2416	=cut
		2417
		2418	sub link_map {
		2419	unless ($LINK_MAP) {
		2420	$LINK_MAP = cf::map::find "{link}"
		2421	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2422	$LINK_MAP->load;
		2423	}
		2424
		2425	$LINK_MAP
		2426	}
1477		2427
1478	sub cf::object::player::enter_link {	2428	sub cf::object::player::enter_link {
1479	my ($self) = @_;	2429	my ($self) = @_;
1480		2430
1481	$self->deactivate_recursive;	2431	$self->deactivate_recursive;
1482		2432
1483	return if $self->map == $LINK_MAP;	2433	return if UNIVERSAL::isa $self->map, "ext::map_link";
1484		2434
1485	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2435	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1486	if $self->map;	2436	if $self->map && $self->map->{path} ne "{link}";
1487		2437
1488	$self->enter_map ($LINK_MAP, 20, 20);	2438	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1489	}	2439	}
1490		2440
1491	sub cf::object::player::leave_link {	2441	sub cf::object::player::leave_link {
1492	my ($self, $map, $x, $y) = @_;	2442	my ($self, $map, $x, $y) = @_;
		2443
		2444	return unless $self->contr->active;
1493		2445
1494	my $link_pos = delete $self->{_link_pos};	2446	my $link_pos = delete $self->{_link_pos};
1495		2447
1496	unless ($map) {	2448	unless ($map) {
1497	# restore original map position	2449	# restore original map position
1498	($map, $x, $y) = @{ $link_pos || [] };	2450	($map, $x, $y) = @{ $link_pos || [] };
1499	$map = cf::map::find_map $map;	2451	$map = cf::map::find $map;
1500		2452
1501	unless ($map) {	2453	unless ($map) {
1502	($map, $x, $y) = @$EMERGENCY_POSITION;	2454	($map, $x, $y) = @$EMERGENCY_POSITION;
1503	$map = cf::map::find_map $map	2455	$map = cf::map::find $map
1504	or die "FATAL: cannot load emergency map\n";	2456	or die "FATAL: cannot load emergency map\n";
1505	}	2457	}
1506	}	2458	}
1507		2459
1508	($x, $y) = (-1, -1)	2460	($x, $y) = (-1, -1)
…		…
1511	# use -1 or undef as default coordinates, not 0, 0	2463	# use -1 or undef as default coordinates, not 0, 0
1512	($x, $y) = ($map->enter_x, $map->enter_y)	2464	($x, $y) = ($map->enter_x, $map->enter_y)
1513	if $x <=0 && $y <= 0;	2465	if $x <=0 && $y <= 0;
1514		2466
1515	$map->load;	2467	$map->load;
		2468	$map->load_neighbours;
1516		2469
		2470	return unless $self->contr->active;
1517	$self->activate_recursive;	2471	$self->activate_recursive;
		2472
		2473	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1518	$self->enter_map ($map, $x, $y);	2474	$self->enter_map ($map, $x, $y);
1519	}	2475	}
1520		2476
1521	cf::player->attach (	2477	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1522	on_logout => sub {
1523	my ($pl) = @_;
1524		2478
1525	# abort map switching before logout	2479	Moves the player to the given map-path and coordinates by first freezing
1526	if ($pl->ob->{_link_pos}) {	2480	her, loading and preparing them map, calling the provided $check callback
1527	cf::sync_job {	2481	that has to return the map if sucecssful, and then unfreezes the player on
1528	$pl->ob->leave_link	2482	the new (success) or old (failed) map position. In either case, $done will
1529	};	2483	be called at the end of this process.
1530	}
1531	},
1532	on_login => sub {
1533	my ($pl) = @_;
1534		2484
1535	# try to abort aborted map switching on player login :)
1536	# should happen only on crashes
1537	if ($pl->ob->{_link_pos}) {
1538	$pl->ob->enter_link;
1539	Coro::async {
1540	# we need this sleep as the login has a concurrent enter_exit running
1541	# and this sleep increases chances of the player not ending up in scorn
1542	Coro::Timer::sleep 1;
1543	$pl->ob->leave_link;
1544	};
1545	}
1546	},
1547	);
1548
1549	=item $player_object->goto_map ($path, $x, $y)
1550
1551	=cut	2485	=cut
1552		2486
		2487	our $GOTOGEN;
		2488
1553	sub cf::object::player::goto_map {	2489	sub cf::object::player::goto {
1554	my ($self, $path, $x, $y) = @_;	2490	my ($self, $path, $x, $y, $check, $done) = @_;
		2491
		2492	# do generation counting so two concurrent goto's will be executed in-order
		2493	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1555		2494
1556	$self->enter_link;	2495	$self->enter_link;
1557		2496
1558	(Coro::async {	2497	(async {
1559	$path = new cf::path $path;	2498	$Coro::current->{desc} = "player::goto $path $x $y";
1560		2499
1561	my $map = cf::map::find_map $path->as_string;	2500	# *tag paths override both path and x|y
		2501	if ($path =~ /^\*(.*)$/) {
		2502	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2503	my $ob = $obs[rand @obs];
		2504
		2505	# see if we actually can go there
		2506	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2507	$ob = $obs[rand @obs];
		2508	} else {
		2509	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2510	}
		2511	# else put us there anyways for now #d#
		2512
		2513	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2514	} else {
		2515	($path, $x, $y) = (undef, undef, undef);
		2516	}
		2517	}
		2518
		2519	my $map = eval {
		2520	my $map = defined $path ? cf::map::find $path : undef;
		2521
		2522	if ($map) {
1562	$map = $map->customise_for ($self) if $map;	2523	$map = $map->customise_for ($self);
1563		2524	$map = $check->($map) if $check && $map;
1564	# warn "entering ", $map->path, " at ($x, $y)\n"	2525	} else {
1565	# if $map;
1566
1567	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2526	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2527	}
1568		2528
		2529	$map
		2530	};
		2531
		2532	if ($@) {
		2533	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2534	LOG llevError | logBacktrace, Carp::longmess $@;
		2535	}
		2536
		2537	if ($gen == $self->{_goto_generation}) {
		2538	delete $self->{_goto_generation};
1569	$self->leave_link ($map, $x, $y);	2539	$self->leave_link ($map, $x, $y);
		2540	}
		2541
		2542	$done->() if $done;
1570	})->prio (1);	2543	})->prio (1);
1571	}	2544	}
1572		2545
1573	=item $player_object->enter_exit ($exit_object)	2546	=item $player_object->enter_exit ($exit_object)
1574		2547
…		…
1576		2549
1577	sub parse_random_map_params {	2550	sub parse_random_map_params {
1578	my ($spec) = @_;	2551	my ($spec) = @_;
1579		2552
1580	my $rmp = { # defaults	2553	my $rmp = { # defaults
1581	xsize => 10,	2554	xsize => (cf::rndm 15, 40),
1582	ysize => 10,	2555	ysize => (cf::rndm 15, 40),
		2556	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2557	#layout => string,
1583	};	2558	};
1584		2559
1585	for (split /\n/, $spec) {	2560	for (split /\n/, $spec) {
1586	my ($k, $v) = split /\s+/, $_, 2;	2561	my ($k, $v) = split /\s+/, $_, 2;
1587		2562
…		…
1591	$rmp	2566	$rmp
1592	}	2567	}
1593		2568
1594	sub prepare_random_map {	2569	sub prepare_random_map {
1595	my ($exit) = @_;	2570	my ($exit) = @_;
		2571
		2572	my $guard = cf::lock_acquire "exit_prepare:$exit";
1596		2573
1597	# all this does is basically replace the /! path by	2574	# all this does is basically replace the /! path by
1598	# a new random map path (?random/...) with a seed	2575	# a new random map path (?random/...) with a seed
1599	# that depends on the exit object	2576	# that depends on the exit object
1600		2577
1601	my $rmp = parse_random_map_params $exit->msg;	2578	my $rmp = parse_random_map_params $exit->msg;
1602		2579
1603	if ($exit->map) {	2580	if ($exit->map) {
1604	$rmp->{region} = $exit->map->region_name;	2581	$rmp->{region} = $exit->region->name;
1605	$rmp->{origin_map} = $exit->map->path;	2582	$rmp->{origin_map} = $exit->map->path;
1606	$rmp->{origin_x} = $exit->x;	2583	$rmp->{origin_x} = $exit->x;
1607	$rmp->{origin_y} = $exit->y;	2584	$rmp->{origin_y} = $exit->y;
1608	}	2585	}
1609		2586
1610	$rmp->{random_seed} ||= $exit->random_seed;	2587	$rmp->{random_seed} ||= $exit->random_seed;
1611		2588
1612	my $data = cf::to_json $rmp;	2589	my $data = cf::to_json $rmp;
1613	my $md5 = Digest::MD5::md5_hex $data;	2590	my $md5 = Digest::MD5::md5_hex $data;
		2591	my $meta = "$RANDOMDIR/$md5.meta";
1614		2592
1615	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2593	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1616	aio_write $fh, 0, (length $data), $data, 0;	2594	aio_write $fh, 0, (length $data), $data, 0;
		2595	undef $fh;
		2596	aio_rename "$meta~", $meta;
1617		2597
1618	$exit->slaying ("?random/$md5");	2598	$exit->slaying ("?random/$md5");
1619	$exit->msg (undef);	2599	$exit->msg (undef);
1620	}	2600	}
1621	}	2601	}
…		…
1623	sub cf::object::player::enter_exit {	2603	sub cf::object::player::enter_exit {
1624	my ($self, $exit) = @_;	2604	my ($self, $exit) = @_;
1625		2605
1626	return unless $self->type == cf::PLAYER;	2606	return unless $self->type == cf::PLAYER;
1627		2607
		2608	if ($exit->slaying eq "/!") {
		2609	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2610	# the problem is that $exit might not survive long enough
		2611	# so it needs to be done right now, right here
		2612	cf::sync_job { prepare_random_map $exit };
		2613	}
		2614
		2615	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2616	my $hp = $exit->stats->hp;
		2617	my $sp = $exit->stats->sp;
		2618
1628	$self->enter_link;	2619	$self->enter_link;
1629		2620
		2621	# if exit is damned, update players death & WoR home-position
		2622	$self->contr->savebed ($slaying, $hp, $sp)
		2623	if $exit->flag (FLAG_DAMNED);
		2624
1630	(Coro::async {	2625	(async {
		2626	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2627
		2628	$self->deactivate_recursive; # just to be sure
1631	unless (eval {	2629	unless (eval {
1632		2630	$self->goto ($slaying, $hp, $sp);
1633	prepare_random_map $exit
1634	if $exit->slaying eq "/!";
1635
1636	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1637	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1638		2631
1639	1;	2632	1;
1640	}) {	2633	}) {
1641	$self->message ("Something went wrong deep within the crossfire server. "	2634	$self->message ("Something went wrong deep within the crossfire server. "
1642	. "I'll try to bring you back to the map you were before. "	2635	. "I'll try to bring you back to the map you were before. "
1643	. "Please report this to the dungeon master",	2636	. "Please report this to the dungeon master!",
1644	cf::NDI_UNIQUE | cf::NDI_RED);	2637	cf::NDI_UNIQUE | cf::NDI_RED);
1645		2638
1646	warn "ERROR in enter_exit: $@";	2639	warn "ERROR in enter_exit: $@";
1647	$self->leave_link;	2640	$self->leave_link;
1648	}	2641	}
1649	})->prio (1);	2642	})->prio (1);
…		…
1662		2655
1663	sub cf::client::send_drawinfo {	2656	sub cf::client::send_drawinfo {
1664	my ($self, $text, $flags) = @_;	2657	my ($self, $text, $flags) = @_;
1665		2658
1666	utf8::encode $text;	2659	utf8::encode $text;
1667	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2660	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1668	}	2661	}
1669		2662
		2663	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2664
		2665	Send a drawinfo or msg packet to the client, formatting the msg for the
		2666	client if neccessary. C<$type> should be a string identifying the type of
		2667	the message, with C<log> being the default. If C<$color> is negative, suppress
		2668	the message unless the client supports the msg packet.
		2669
		2670	=cut
		2671
		2672	our %CHANNEL = (
		2673	"c/identify" => {
		2674	id => "infobox",
		2675	title => "Identify",
		2676	reply => undef,
		2677	tooltip => "Items recently identified",
		2678	},
		2679	"c/examine" => {
		2680	id => "infobox",
		2681	title => "Examine",
		2682	reply => undef,
		2683	tooltip => "Signs and other items you examined",
		2684	},
		2685	"c/lookat" => {
		2686	id => "infobox",
		2687	title => "Look",
		2688	reply => undef,
		2689	tooltip => "What you saw there",
		2690	},
		2691	);
		2692
		2693	sub cf::client::send_msg {
		2694	my ($self, $channel, $msg, $color, @extra) = @_;
		2695
		2696	$msg = $self->pl->expand_cfpod ($msg);
		2697
		2698	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2699
		2700	# check predefined channels, for the benefit of C
		2701	if ($CHANNEL{$channel}) {
		2702	$channel = $CHANNEL{$channel};
		2703
		2704	$self->ext_msg (channel_info => $channel)
		2705	if $self->can_msg;
		2706
		2707	$channel = $channel->{id};
		2708
		2709	} elsif (ref $channel) {
		2710	# send meta info to client, if not yet sent
		2711	unless (exists $self->{channel}{$channel->{id}}) {
		2712	$self->{channel}{$channel->{id}} = $channel;
		2713	$self->ext_msg (channel_info => $channel)
		2714	if $self->can_msg;
		2715	}
		2716
		2717	$channel = $channel->{id};
		2718	}
		2719
		2720	return unless @extra || length $msg;
		2721
		2722	if ($self->can_msg) {
		2723	# default colour, mask it out
		2724	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2725	if $color & cf::NDI_DEF;
		2726
		2727	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2728	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2729	} else {
		2730	if ($color >= 0) {
		2731	# replace some tags by gcfclient-compatible ones
		2732	for ($msg) {
		2733	1 while
		2734	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2735	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2736	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2737	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2738	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2739	}
		2740
		2741	$color &= cf::NDI_COLOR_MASK;
		2742
		2743	utf8::encode $msg;
		2744
		2745	if (0 && $msg =~ /\[/) {
		2746	# COMMAND/INFO
		2747	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2748	} else {
		2749	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2750	$self->send_packet ("drawinfo $color $msg")
		2751	}
		2752	}
		2753	}
		2754	}
		2755
		2756	=item $client->ext_msg ($type, @msg)
		2757
		2758	Sends an ext event to the client.
		2759
		2760	=cut
		2761
		2762	sub cf::client::ext_msg($$@) {
		2763	my ($self, $type, @msg) = @_;
		2764
		2765	if ($self->extcmd == 2) {
		2766	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2767	} elsif ($self->extcmd == 1) { # TODO: remove
		2768	push @msg, msgtype => "event_$type";
		2769	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2770	}
		2771	}
		2772
		2773	=item $client->ext_reply ($msgid, @msg)
		2774
		2775	Sends an ext reply to the client.
		2776
		2777	=cut
		2778
		2779	sub cf::client::ext_reply($$@) {
		2780	my ($self, $id, @msg) = @_;
		2781
		2782	if ($self->extcmd == 2) {
		2783	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2784	} elsif ($self->extcmd == 1) {
		2785	#TODO: version 1, remove
		2786	unshift @msg, msgtype => "reply", msgid => $id;
		2787	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2788	}
		2789	}
1670		2790
1671	=item $success = $client->query ($flags, "text", \&cb)	2791	=item $success = $client->query ($flags, "text", \&cb)
1672		2792
1673	Queues a query to the client, calling the given callback with	2793	Queues a query to the client, calling the given callback with
1674	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2794	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1675	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2795	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1676		2796
1677	Queries can fail, so check the return code. Or don't, as queries will become	2797	Queries can fail, so check the return code. Or don't, as queries will
1678	reliable at some point in the future.	2798	become reliable at some point in the future.
1679		2799
1680	=cut	2800	=cut
1681		2801
1682	sub cf::client::query {	2802	sub cf::client::query {
1683	my ($self, $flags, $text, $cb) = @_;	2803	my ($self, $flags, $text, $cb) = @_;
…		…
1691	utf8::encode $text;	2811	utf8::encode $text;
1692	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2812	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1693		2813
1694	$self->send_packet ($self->{query_queue}[0][0])	2814	$self->send_packet ($self->{query_queue}[0][0])
1695	if @{ $self->{query_queue} } == 1;	2815	if @{ $self->{query_queue} } == 1;
		2816
		2817	1
1696	}	2818	}
1697		2819
1698	cf::client->attach (	2820	cf::client->attach (
		2821	on_connect => sub {
		2822	my ($ns) = @_;
		2823
		2824	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2825	},
1699	on_reply => sub {	2826	on_reply => sub {
1700	my ($ns, $msg) = @_;	2827	my ($ns, $msg) = @_;
1701		2828
1702	# this weird shuffling is so that direct followup queries	2829	# this weird shuffling is so that direct followup queries
1703	# get handled first	2830	# get handled first
1704	my $queue = delete $ns->{query_queue};	2831	my $queue = delete $ns->{query_queue}
		2832	or return; # be conservative, not sure how that can happen, but we saw a crash here
1705		2833
1706	(shift @$queue)->[1]->($msg);	2834	(shift @$queue)->[1]->($msg);
		2835	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1707		2836
1708	push @{ $ns->{query_queue} }, @$queue;	2837	push @{ $ns->{query_queue} }, @$queue;
1709		2838
1710	if (@{ $ns->{query_queue} } == @$queue) {	2839	if (@{ $ns->{query_queue} } == @$queue) {
1711	if (@$queue) {	2840	if (@$queue) {
…		…
1713	} else {	2842	} else {
1714	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2843	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1715	}	2844	}
1716	}	2845	}
1717	},	2846	},
		2847	on_exticmd => sub {
		2848	my ($ns, $buf) = @_;
		2849
		2850	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2851
		2852	if (ref $msg) {
		2853	my ($type, $reply, @payload) =
		2854	"ARRAY" eq ref $msg
		2855	? @$msg
		2856	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2857
		2858	my @reply;
		2859
		2860	if (my $cb = $EXTICMD{$type}) {
		2861	@reply = $cb->($ns, @payload);
		2862	}
		2863
		2864	$ns->ext_reply ($reply, @reply)
		2865	if $reply;
		2866
		2867	} else {
		2868	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2869	}
		2870
		2871	cf::override;
		2872	},
1718	);	2873	);
1719		2874
1720	=item $client->coro (\&cb)	2875	=item $client->async (\&cb)
1721		2876
1722	Create a new coroutine, running the specified callback. The coroutine will	2877	Create a new coroutine, running the specified callback. The coroutine will
1723	be automatically cancelled when the client gets destroyed (e.g. on logout,	2878	be automatically cancelled when the client gets destroyed (e.g. on logout,
1724	or loss of connection).	2879	or loss of connection).
1725		2880
1726	=cut	2881	=cut
1727		2882
1728	sub cf::client::coro {	2883	sub cf::client::async {
1729	my ($self, $cb) = @_;	2884	my ($self, $cb) = @_;
1730		2885
1731	my $coro; $coro = async {	2886	my $coro = &Coro::async ($cb);
1732	eval {
1733	$cb->();
1734	};
1735	warn $@ if $@;
1736	};
1737		2887
1738	$coro->on_destroy (sub {	2888	$coro->on_destroy (sub {
1739	delete $self->{_coro}{$coro+0};	2889	delete $self->{_coro}{$coro+0};
1740	});	2890	});
1741		2891
…		…
1768	our $safe = new Safe "safe";	2918	our $safe = new Safe "safe";
1769	our $safe_hole = new Safe::Hole;	2919	our $safe_hole = new Safe::Hole;
1770		2920
1771	$SIG{FPE} = 'IGNORE';	2921	$SIG{FPE} = 'IGNORE';
1772		2922
1773	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2923	$safe->permit_only (Opcode::opset qw(
		2924	:base_core :base_mem :base_orig :base_math
		2925	grepstart grepwhile mapstart mapwhile
		2926	sort time
		2927	));
1774		2928
1775	# here we export the classes and methods available to script code	2929	# here we export the classes and methods available to script code
1776		2930
1777	=pod	2931	=pod
1778		2932
1779	The following fucntions and emthods are available within a safe environment:	2933	The following functions and methods are available within a safe environment:
1780		2934
1781	cf::object contr pay_amount pay_player map	2935	cf::object
		2936	contr pay_amount pay_player map x y force_find force_add destroy
		2937	insert remove name archname title slaying race decrease_ob_nr
		2938
1782	cf::object::player player	2939	cf::object::player
1783	cf::player peaceful	2940	player
1784	cf::map trigger	2941
		2942	cf::player
		2943	peaceful
		2944
		2945	cf::map
		2946	trigger
1785		2947
1786	=cut	2948	=cut
1787		2949
1788	for (	2950	for (
1789	["cf::object" => qw(contr pay_amount pay_player map)],	2951	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2952	insert remove inv name archname title slaying race
		2953	decrease_ob_nr destroy)],
1790	["cf::object::player" => qw(player)],	2954	["cf::object::player" => qw(player)],
1791	["cf::player" => qw(peaceful)],	2955	["cf::player" => qw(peaceful)],
1792	["cf::map" => qw(trigger)],	2956	["cf::map" => qw(trigger)],
1793	) {	2957	) {
1794	no strict 'refs';	2958	no strict 'refs';
…		…
1865	=back	3029	=back
1866		3030
1867	=cut	3031	=cut
1868		3032
1869	#############################################################################	3033	#############################################################################
		3034	# the server's init and main functions
1870		3035
1871	=head2 EXTENSION DATABASE SUPPORT	3036	sub load_facedata($) {
		3037	my ($path) = @_;
1872		3038
1873	Crossfire maintains a very simple database for extension use. It can	3039	# HACK to clear player env face cache, we need some signal framework
1874	currently store anything that can be serialised using Storable, which	3040	# for this (global event?)
1875	excludes objects.	3041	%ext::player_env::MUSIC_FACE_CACHE = ();
1876		3042
1877	The parameter C<$family> should best start with the name of the extension	3043	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1878	using it, it should be unique.
1879		3044
1880	=over 4	3045	warn "loading facedata from $path\n";
1881		3046
1882	=item $hashref = cf::db_get $family	3047	my $facedata;
		3048	0 < aio_load $path, $facedata
		3049	or die "$path: $!";
1883		3050
1884	Return a hashref for use by the extension C<$family>, which can be	3051	$facedata = Coro::Storable::thaw $facedata;
1885	modified. After modifications, you have to call C<cf::db_dirty> or
1886	C<cf::db_sync>.
1887		3052
1888	=item $value = cf::db_get $family => $key	3053	$facedata->{version} == 2
		3054	or cf::cleanup "$path: version mismatch, cannot proceed.";
1889		3055
1890	Returns a single value from the database	3056	# patch in the exptable
1891		3057	$facedata->{resource}{"res/exp_table"} = {
1892	=item cf::db_put $family => $hashref	3058	type => FT_RSRC,
1893		3059	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1894	Stores the given family hashref into the database. Updates are delayed, if
1895	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1896
1897	=item cf::db_put $family => $key => $value
1898
1899	Stores the given C<$value> in the family hash. Updates are delayed, if you
1900	want the data to be synced to disk immediately, use C<cf::db_sync>.
1901
1902	=item cf::db_dirty
1903
1904	Marks the database as dirty, to be updated at a later time.
1905
1906	=item cf::db_sync
1907
1908	Immediately write the database to disk I<if it is dirty>.
1909
1910	=cut
1911
1912	our $DB;
1913
1914	{
1915	my $path = cf::localdir . "/database.pst";
1916
1917	sub db_load() {
1918	$DB = stat $path ? Storable::retrieve $path : { };
1919	}
1920
1921	my $pid;
1922
1923	sub db_save() {
1924	waitpid $pid, 0 if $pid;
1925	if (0 == ($pid = fork)) {
1926	$DB->{_meta}{version} = 1;
1927	Storable::nstore $DB, "$path~";
1928	rename "$path~", $path;
1929	cf::_exit 0 if defined $pid;
1930	}
1931	}
1932
1933	my $dirty;
1934
1935	sub db_sync() {
1936	db_save if $dirty;
1937	undef $dirty;
1938	}
1939
1940	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1941	db_sync;
1942	});	3060	};
		3061	cf::cede_to_tick;
1943		3062
1944	sub db_dirty() {
1945	$dirty = 1;
1946	$idle->start;
1947	}	3063	{
		3064	my $faces = $facedata->{faceinfo};
1948		3065
1949	sub db_get($;$) {	3066	while (my ($face, $info) = each %$faces) {
1950	@_ >= 2	3067	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1951	? $DB->{$_[0]}{$_[1]}	3068	cf::face::set_visibility $idx, $info->{visibility};
1952	: ($DB->{$_[0]} ||= { })	3069	cf::face::set_magicmap $idx, $info->{magicmap};
1953	}	3070	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3071	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1954		3072
1955	sub db_put($$;$) {	3073	cf::cede_to_tick;
1956	if (@_ >= 3) {
1957	$DB->{$_[0]}{$_[1]} = $_[2];
1958	} else {
1959	$DB->{$_[0]} = $_[1];
1960	}
1961	db_dirty;
1962	}
1963
1964	cf::global->attach (
1965	prio => 10000,
1966	on_cleanup => sub {
1967	db_sync;
1968	},	3074	}
1969	);
1970	}
1971		3075
1972	#############################################################################	3076	while (my ($face, $info) = each %$faces) {
1973	# the server's main()	3077	next unless $info->{smooth};
		3078	my $idx = cf::face::find $face
		3079	or next;
		3080	if (my $smooth = cf::face::find $info->{smooth}) {
		3081	cf::face::set_smooth $idx, $smooth;
		3082	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3083	} else {
		3084	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3085	}
1974		3086
1975	sub cfg_load {	3087	cf::cede_to_tick;
		3088	}
		3089	}
		3090
		3091	{
		3092	my $anims = $facedata->{animinfo};
		3093
		3094	while (my ($anim, $info) = each %$anims) {
		3095	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3096	cf::cede_to_tick;
		3097	}
		3098
		3099	cf::anim::invalidate_all; # d'oh
		3100	}
		3101
		3102	{
		3103	# TODO: for gcfclient pleasure, we should give resources
		3104	# that gcfclient doesn't grok a >10000 face index.
		3105	my $res = $facedata->{resource};
		3106
		3107	my $soundconf = delete $res->{"res/sound.conf"};
		3108
		3109	while (my ($name, $info) = each %$res) {
		3110	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3111	my $data;
		3112
		3113	if ($info->{type} & 1) {
		3114	# prepend meta info
		3115
		3116	my $meta = $enc->encode ({
		3117	name => $name,
		3118	%{ $info->{meta} || {} },
		3119	});
		3120
		3121	$data = pack "(w/a*)*", $meta, $info->{data};
		3122	} else {
		3123	$data = $info->{data};
		3124	}
		3125
		3126	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3127	cf::face::set_type $idx, $info->{type};
		3128
		3129	cf::cede_to_tick;
		3130	}
		3131
		3132	if ($soundconf) {
		3133	$soundconf = $enc->decode (delete $soundconf->{data});
		3134
		3135	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3136	my $sound = $soundconf->{compat}[$_]
		3137	or next;
		3138
		3139	my $face = cf::face::find "sound/$sound->[1]";
		3140	cf::sound::set $sound->[0] => $face;
		3141	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3142	}
		3143
		3144	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3145	my $face = cf::face::find "sound/$v";
		3146	cf::sound::set $k => $face;
		3147	}
		3148	}
		3149	}
		3150
		3151	1
		3152	}
		3153
		3154	register_exticmd fx_want => sub {
		3155	my ($ns, $want) = @_;
		3156
		3157	while (my ($k, $v) = each %$want) {
		3158	$ns->fx_want ($k, $v);
		3159	}
		3160	};
		3161
		3162	sub reload_regions {
		3163	# HACK to clear player env face cache, we need some signal framework
		3164	# for this (global event?)
		3165	%ext::player_env::MUSIC_FACE_CACHE = ();
		3166
		3167	load_resource_file "$MAPDIR/regions"
		3168	or die "unable to load regions file\n";
		3169
		3170	for (cf::region::list) {
		3171	$_->{match} = qr/$_->{match}/
		3172	if exists $_->{match};
		3173	}
		3174	}
		3175
		3176	sub reload_facedata {
		3177	load_facedata "$DATADIR/facedata"
		3178	or die "unable to load facedata\n";
		3179	}
		3180
		3181	sub reload_archetypes {
		3182	load_resource_file "$DATADIR/archetypes"
		3183	or die "unable to load archetypes\n";
		3184	#d# NEED to laod twice to resolve forward references
		3185	# this really needs to be done in an extra post-pass
		3186	# (which needs to be synchronous, so solve it differently)
		3187	load_resource_file "$DATADIR/archetypes"
		3188	or die "unable to load archetypes\n";
		3189	}
		3190
		3191	sub reload_treasures {
		3192	load_resource_file "$DATADIR/treasures"
		3193	or die "unable to load treasurelists\n";
		3194	}
		3195
		3196	sub reload_resources {
		3197	warn "reloading resource files...\n";
		3198
		3199	reload_regions;
		3200	reload_facedata;
		3201	#reload_archetypes;#d#
		3202	reload_archetypes;
		3203	reload_treasures;
		3204
		3205	warn "finished reloading resource files\n";
		3206	}
		3207
		3208	sub init {
		3209	reload_resources;
		3210	}
		3211
		3212	sub reload_config {
1976	open my $fh, "<:utf8", cf::confdir . "/config"	3213	open my $fh, "<:utf8", "$CONFDIR/config"
1977	or return;	3214	or return;
1978		3215
1979	local $/;	3216	local $/;
1980	*CFG = YAML::Syck::Load <$fh>;	3217	*CFG = YAML::Syck::Load <$fh>;
		3218
		3219	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3220
		3221	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3222	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3223
		3224	if (exists $CFG{mlockall}) {
		3225	eval {
		3226	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3227	and die "WARNING: m(un)lockall failed: $!\n";
		3228	};
		3229	warn $@ if $@;
		3230	}
1981	}	3231	}
1982		3232
1983	sub main {	3233	sub main {
1984	# we must not ever block the main coroutine	3234	# we must not ever block the main coroutine
1985	local $Coro::idle = sub {	3235	local $Coro::idle = sub {
1986	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3236	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1987	(Coro::unblock_sub {	3237	(async {
		3238	$Coro::current->{desc} = "IDLE BUG HANDLER";
1988	Event::one_event;	3239	Event::one_event;
1989	})->();	3240	})->prio (Coro::PRIO_MAX);
1990	};	3241	};
1991		3242
1992	cfg_load;	3243	reload_config;
1993	db_load;	3244	db_init;
1994	load_extensions;	3245	load_extensions;
		3246
		3247	$TICK_WATCHER->start;
1995	Event::loop;	3248	Event::loop;
1996	}	3249	}
1997		3250
1998	#############################################################################	3251	#############################################################################
1999	# initialisation	3252	# initialisation and cleanup
2000		3253
		3254	# install some emergency cleanup handlers
		3255	BEGIN {
		3256	for my $signal (qw(INT HUP TERM)) {
		3257	Event->signal (
		3258	reentrant => 0,
		3259	data => WF_AUTOCANCEL,
		3260	signal => $signal,
		3261	prio => 0,
		3262	cb => sub {
		3263	cf::cleanup "SIG$signal";
		3264	},
		3265	);
		3266	}
		3267	}
		3268
		3269	sub write_runtime {
		3270	my $runtime = "$LOCALDIR/runtime";
		3271
		3272	# first touch the runtime file to show we are still running:
		3273	# the fsync below can take a very very long time.
		3274
		3275	IO::AIO::aio_utime $runtime, undef, undef;
		3276
		3277	my $guard = cf::lock_acquire "write_runtime";
		3278
		3279	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3280	or return;
		3281
		3282	my $value = $cf::RUNTIME + 90 + 10;
		3283	# 10 is the runtime save interval, for a monotonic clock
		3284	# 60 allows for the watchdog to kill the server.
		3285
		3286	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3287	and return;
		3288
		3289	# always fsync - this file is important
		3290	aio_fsync $fh
		3291	and return;
		3292
		3293	# touch it again to show we are up-to-date
		3294	aio_utime $fh, undef, undef;
		3295
		3296	close $fh
		3297	or return;
		3298
		3299	aio_rename "$runtime~", $runtime
		3300	and return;
		3301
		3302	warn "runtime file written.\n";
		3303
		3304	1
		3305	}
		3306
		3307	sub emergency_save() {
		3308	my $freeze_guard = cf::freeze_mainloop;
		3309
		3310	warn "enter emergency perl save\n";
		3311
		3312	cf::sync_job {
		3313	# use a peculiar iteration method to avoid tripping on perl
		3314	# refcount bugs in for. also avoids problems with players
		3315	# and maps saved/destroyed asynchronously.
		3316	warn "begin emergency player save\n";
		3317	for my $login (keys %cf::PLAYER) {
		3318	my $pl = $cf::PLAYER{$login} or next;
		3319	$pl->valid or next;
		3320	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3321	$pl->save;
		3322	}
		3323	warn "end emergency player save\n";
		3324
		3325	warn "begin emergency map save\n";
		3326	for my $path (keys %cf::MAP) {
		3327	my $map = $cf::MAP{$path} or next;
		3328	$map->valid or next;
		3329	$map->save;
		3330	}
		3331	warn "end emergency map save\n";
		3332
		3333	warn "begin emergency database checkpoint\n";
		3334	BDB::db_env_txn_checkpoint $DB_ENV;
		3335	warn "end emergency database checkpoint\n";
		3336	};
		3337
		3338	warn "leave emergency perl save\n";
		3339	}
		3340
		3341	sub post_cleanup {
		3342	my ($make_core) = @_;
		3343
		3344	warn Carp::longmess "post_cleanup backtrace"
		3345	if $make_core;
		3346	}
		3347
2001	sub reload() {	3348	sub do_reload_perl() {
2002	# can/must only be called in main	3349	# can/must only be called in main
2003	if ($Coro::current != $Coro::main) {	3350	if ($Coro::current != $Coro::main) {
2004	warn "can only reload from main coroutine\n";	3351	warn "can only reload from main coroutine";
2005	return;	3352	return;
2006	}	3353	}
2007		3354
2008	warn "reloading...";	3355	warn "reloading...";
2009		3356
2010	local $FREEZE = 1;	3357	warn "entering sync_job";
		3358
		3359	cf::sync_job {
		3360	cf::write_runtime; # external watchdog should not bark
2011	cf::emergency_save;	3361	cf::emergency_save;
		3362	cf::write_runtime; # external watchdog should not bark
2012		3363
2013	eval {	3364	warn "syncing database to disk";
		3365	BDB::db_env_txn_checkpoint $DB_ENV;
		3366
2014	# if anything goes wrong in here, we should simply crash as we already saved	3367	# if anything goes wrong in here, we should simply crash as we already saved
2015		3368
2016	# cancel all watchers	3369	warn "cancelling all WF_AUTOCANCEL watchers";
2017	for (Event::all_watchers) {	3370	for (Event::all_watchers) {
2018	$_->cancel if $_->data & WF_AUTOCANCEL;	3371	$_->cancel if $_->data & WF_AUTOCANCEL;
2019	}	3372	}
2020		3373
		3374	warn "flushing outstanding aio requests";
		3375	for (;;) {
		3376	BDB::flush;
		3377	IO::AIO::flush;
		3378	Coro::cede_notself;
		3379	last unless IO::AIO::nreqs || BDB::nreqs;
		3380	warn "iterate...";
		3381	}
		3382
		3383	++$RELOAD;
		3384
2021	# cancel all extension coros	3385	warn "cancelling all extension coros";
2022	$_->cancel for values %EXT_CORO;	3386	$_->cancel for values %EXT_CORO;
2023	%EXT_CORO = ();	3387	%EXT_CORO = ();
2024		3388
2025	# unload all extensions	3389	warn "removing commands";
2026	for (@exts) {	3390	%COMMAND = ();
		3391
		3392	warn "removing ext/exti commands";
		3393	%EXTCMD = ();
		3394	%EXTICMD = ();
		3395
		3396	warn "unloading/nuking all extensions";
		3397	for my $pkg (@EXTS) {
2027	warn "unloading <$_>";	3398	warn "... unloading $pkg";
2028	unload_extension $_;	3399
		3400	if (my $cb = $pkg->can ("unload")) {
		3401	eval {
		3402	$cb->($pkg);
		3403	1
		3404	} or warn "$pkg unloaded, but with errors: $@";
2029	}	3405	}
2030		3406
		3407	warn "... nuking $pkg";
		3408	Symbol::delete_package $pkg;
		3409	}
		3410
2031	# unload all modules loaded from $LIBDIR	3411	warn "unloading all perl modules loaded from $LIBDIR";
2032	while (my ($k, $v) = each %INC) {	3412	while (my ($k, $v) = each %INC) {
2033	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3413	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2034		3414
2035	warn "removing <$k>";	3415	warn "... unloading $k";
2036	delete $INC{$k};	3416	delete $INC{$k};
2037		3417
2038	$k =~ s/\.pm$//;	3418	$k =~ s/\.pm$//;
2039	$k =~ s/\//::/g;	3419	$k =~ s/\//::/g;
2040		3420
…		…
2043	}	3423	}
2044		3424
2045	Symbol::delete_package $k;	3425	Symbol::delete_package $k;
2046	}	3426	}
2047		3427
2048	# sync database to disk
2049	cf::db_sync;
2050	IO::AIO::flush;
2051
2052	# get rid of safe::, as good as possible	3428	warn "getting rid of safe::, as good as possible";
2053	Symbol::delete_package "safe::$_"	3429	Symbol::delete_package "safe::$_"
2054	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3430	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2055		3431
2056	# remove register_script_function callbacks
2057	# TODO
2058
2059	# unload cf.pm "a bit"	3432	warn "unloading cf.pm \"a bit\"";
2060	delete $INC{"cf.pm"};	3433	delete $INC{"cf.pm"};
		3434	delete $INC{"cf/pod.pm"};
2061		3435
2062	# don't, removes xs symbols, too,	3436	# don't, removes xs symbols, too,
2063	# and global variables created in xs	3437	# and global variables created in xs
2064	#Symbol::delete_package __PACKAGE__;	3438	#Symbol::delete_package __PACKAGE__;
2065		3439
2066	# reload cf.pm	3440	warn "unload completed, starting to reload now";
		3441
2067	warn "reloading cf.pm";	3442	warn "reloading cf.pm";
2068	require cf;	3443	require cf;
2069	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3444	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2070		3445
2071	# load config and database again	3446	warn "loading config and database again";
2072	cf::cfg_load;	3447	cf::reload_config;
2073	cf::db_load;
2074		3448
2075	# load extensions
2076	warn "load extensions";	3449	warn "loading extensions";
2077	cf::load_extensions;	3450	cf::load_extensions;
2078		3451
2079	# reattach attachments to objects	3452	warn "reattaching attachments to objects/players";
2080	warn "reattach";	3453	_global_reattach; # objects, sockets
2081	_global_reattach;	3454	warn "reattaching attachments to maps";
2082	};	3455	reattach $_ for values %MAP;
		3456	warn "reattaching attachments to players";
		3457	reattach $_ for values %PLAYER;
2083		3458
2084	if ($@) {	3459	warn "leaving sync_job";
		3460
		3461	1
		3462	} or do {
2085	warn $@;	3463	warn $@;
2086	warn "error while reloading, exiting.";	3464	warn "error while reloading, exiting.";
2087	exit 1;	3465	exit 1;
2088	}	3466	};
2089		3467
2090	warn "reloaded successfully";	3468	warn "reloaded";
2091	};	3469	};
2092		3470
2093	#############################################################################	3471	our $RELOAD_WATCHER; # used only during reload
2094		3472
2095	unless ($LINK_MAP) {	3473	sub reload_perl() {
2096	$LINK_MAP = cf::map::new;	3474	# doing reload synchronously and two reloads happen back-to-back,
		3475	# coro crashes during coro_state_free->destroy here.
2097		3476
2098	$LINK_MAP->width (41);	3477	$RELOAD_WATCHER ||= Event->timer (
2099	$LINK_MAP->height (41);	3478	reentrant => 0,
2100	$LINK_MAP->alloc;
2101	$LINK_MAP->path ("{link}");
2102	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2103	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2104
2105	# dirty hack because... archetypes are not yet loaded
2106	Event->timer (
2107	after => 2,	3479	after => 0,
		3480	data => WF_AUTOCANCEL,
2108	cb => sub {	3481	cb => sub {
2109	$_[0]->w->cancel;	3482	do_reload_perl;
2110		3483	undef $RELOAD_WATCHER;
2111	# provide some exits "home"
2112	my $exit = cf::object::new "exit";
2113
2114	$exit->slaying ($EMERGENCY_POSITION->[0]);
2115	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2116	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2117
2118	$LINK_MAP->insert ($exit->clone, 19, 19);
2119	$LINK_MAP->insert ($exit->clone, 19, 20);
2120	$LINK_MAP->insert ($exit->clone, 19, 21);
2121	$LINK_MAP->insert ($exit->clone, 20, 19);
2122	$LINK_MAP->insert ($exit->clone, 20, 21);
2123	$LINK_MAP->insert ($exit->clone, 21, 19);
2124	$LINK_MAP->insert ($exit->clone, 21, 20);
2125	$LINK_MAP->insert ($exit->clone, 21, 21);
2126
2127	$exit->destroy;
2128	});	3484	},
2129		3485	);
2130	$LINK_MAP->{deny_save} = 1;
2131	$LINK_MAP->{deny_reset} = 1;
2132
2133	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2134	}	3486	}
2135
2136	register "<global>", __PACKAGE__;
2137		3487
2138	register_command "reload" => sub {	3488	register_command "reload" => sub {
2139	my ($who, $arg) = @_;	3489	my ($who, $arg) = @_;
2140		3490
2141	if ($who->flag (FLAG_WIZ)) {	3491	if ($who->flag (FLAG_WIZ)) {
2142	$who->message ("start of reload.");
2143	reload;
2144	$who->message ("end of reload.");	3492	$who->message ("reloading server.");
		3493	async {
		3494	$Coro::current->{desc} = "perl_reload";
		3495	reload_perl;
		3496	};
2145	}	3497	}
2146	};	3498	};
2147		3499
2148	unshift @INC, $LIBDIR;	3500	unshift @INC, $LIBDIR;
		3501
		3502	my $bug_warning = 0;
		3503
		3504	our @WAIT_FOR_TICK;
		3505	our @WAIT_FOR_TICK_BEGIN;
		3506
		3507	sub wait_for_tick {
		3508	return unless $TICK_WATCHER->is_active;
		3509	return if $Coro::current == $Coro::main;
		3510
		3511	my $signal = new Coro::Signal;
		3512	push @WAIT_FOR_TICK, $signal;
		3513	$signal->wait;
		3514	}
		3515
		3516	sub wait_for_tick_begin {
		3517	return unless $TICK_WATCHER->is_active;
		3518	return if $Coro::current == $Coro::main;
		3519
		3520	my $signal = new Coro::Signal;
		3521	push @WAIT_FOR_TICK_BEGIN, $signal;
		3522	$signal->wait;
		3523	}
2149		3524
2150	$TICK_WATCHER = Event->timer (	3525	$TICK_WATCHER = Event->timer (
2151	reentrant => 0,	3526	reentrant => 0,
		3527	parked => 1,
2152	prio => 0,	3528	prio => 0,
2153	at => $NEXT_TICK || $TICK,	3529	at => $NEXT_TICK || $TICK,
2154	data => WF_AUTOCANCEL,	3530	data => WF_AUTOCANCEL,
2155	cb => sub {	3531	cb => sub {
2156	unless ($FREEZE) {	3532	if ($Coro::current != $Coro::main) {
		3533	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3534	unless ++$bug_warning > 10;
		3535	return;
		3536	}
		3537
		3538	$NOW = $tick_start = Event::time;
		3539
2157	cf::server_tick; # one server iteration	3540	cf::server_tick; # one server iteration
		3541
2158	$RUNTIME += $TICK;	3542	$RUNTIME += $TICK;
2159	}
2160
2161	$NEXT_TICK += $TICK;	3543	$NEXT_TICK += $TICK;
2162		3544
		3545	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3546	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3547	Coro::async_pool {
		3548	$Coro::current->{desc} = "runtime saver";
		3549	write_runtime
		3550	or warn "ERROR: unable to write runtime file: $!";
		3551	};
		3552	}
		3553
		3554	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3555	$sig->send;
		3556	}
		3557	while (my $sig = shift @WAIT_FOR_TICK) {
		3558	$sig->send;
		3559	}
		3560
		3561	$NOW = Event::time;
		3562
2163	# if we are delayed by four ticks or more, skip them all	3563	# if we are delayed by four ticks or more, skip them all
2164	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3564	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2165		3565
2166	$TICK_WATCHER->at ($NEXT_TICK);	3566	$TICK_WATCHER->at ($NEXT_TICK);
2167	$TICK_WATCHER->start;	3567	$TICK_WATCHER->start;
		3568
		3569	$LOAD = ($NOW - $tick_start) / $TICK;
		3570	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3571
		3572	_post_tick;
2168	},	3573	},
2169	);	3574	);
2170		3575
		3576	{
		3577	BDB::min_parallel 8;
2171	IO::AIO::max_poll_time $TICK * 0.2;	3578	BDB::max_poll_time $TICK * 0.1;
2172		3579	$BDB_POLL_WATCHER = Event->io (
2173	Event->io (	3580	reentrant => 0,
2174	fd => IO::AIO::poll_fileno,	3581	fd => BDB::poll_fileno,
2175	poll => 'r',	3582	poll => 'r',
2176	prio => 5,	3583	prio => 0,
2177	data => WF_AUTOCANCEL,
2178	cb => \&IO::AIO::poll_cb,
2179	);
2180
2181	Event->timer (
2182	data => WF_AUTOCANCEL,	3584	data => WF_AUTOCANCEL,
		3585	cb => \&BDB::poll_cb,
		3586	);
		3587
		3588	BDB::set_sync_prepare {
		3589	my $status;
		3590	my $current = $Coro::current;
		3591	(
		3592	sub {
		3593	$status = $!;
		3594	$current->ready; undef $current;
		3595	},
		3596	sub {
		3597	Coro::schedule while defined $current;
		3598	$! = $status;
		3599	},
		3600	)
		3601	};
		3602
		3603	unless ($DB_ENV) {
		3604	$DB_ENV = BDB::db_env_create;
		3605	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3606	| BDB::LOG_AUTOREMOVE, 1);
		3607	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3608	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3609
		3610	cf::sync_job {
		3611	eval {
		3612	BDB::db_env_open
		3613	$DB_ENV,
		3614	$BDBDIR,
		3615	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3616	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3617	0666;
		3618
		3619	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3620	};
		3621
		3622	cf::cleanup "db_env_open(db): $@" if $@;
		3623	};
		3624	}
		3625
		3626	$BDB_DEADLOCK_WATCHER = Event->timer (
2183	after => 0,	3627	after => 3,
2184	interval => 10,	3628	interval => 1,
		3629	hard => 1,
		3630	prio => 0,
		3631	data => WF_AUTOCANCEL,
2185	cb => sub {	3632	cb => sub {
2186	(Coro::unblock_sub {	3633	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2187	write_runtime	3634	},
2188	or warn "ERROR: unable to write runtime file: $!";	3635	);
		3636	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3637	after => 11,
		3638	interval => 60,
		3639	hard => 1,
		3640	prio => 0,
		3641	data => WF_AUTOCANCEL,
		3642	cb => sub {
		3643	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3644	},
		3645	);
		3646	$BDB_TRICKLE_WATCHER = Event->timer (
		3647	after => 5,
		3648	interval => 10,
		3649	hard => 1,
		3650	prio => 0,
		3651	data => WF_AUTOCANCEL,
		3652	cb => sub {
		3653	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3654	},
		3655	);
		3656	}
		3657
		3658	{
		3659	IO::AIO::min_parallel 8;
		3660
		3661	undef $Coro::AIO::WATCHER;
		3662	IO::AIO::max_poll_time $TICK * 0.1;
		3663	$AIO_POLL_WATCHER = Event->io (
		3664	reentrant => 0,
		3665	data => WF_AUTOCANCEL,
		3666	fd => IO::AIO::poll_fileno,
		3667	poll => 'r',
		3668	prio => 0,
		3669	cb => \&IO::AIO::poll_cb,
		3670	);
		3671	}
		3672
		3673	my $_log_backtrace;
		3674
		3675	sub _log_backtrace {
		3676	my ($msg, @addr) = @_;
		3677
		3678	$msg =~ s/\n//;
		3679
		3680	# limit the # of concurrent backtraces
		3681	if ($_log_backtrace < 2) {
		3682	++$_log_backtrace;
		3683	async {
		3684	$Coro::current->{desc} = "abt $msg";
		3685
		3686	my @bt = fork_call {
		3687	@addr = map { sprintf "%x", $_ } @addr;
		3688	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3689	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3690	or die "addr2line: $!";
		3691
		3692	my @funcs;
		3693	my @res = <$fh>;
		3694	chomp for @res;
		3695	while (@res) {
		3696	my ($func, $line) = splice @res, 0, 2, ();
		3697	push @funcs, "[$func] $line";
		3698	}
		3699
		3700	@funcs
		3701	};
		3702
		3703	LOG llevInfo, "[ABT] $msg\n";
		3704	LOG llevInfo, "[ABT] $_\n" for @bt;
		3705	--$_log_backtrace;
2189	})->();	3706	};
		3707	} else {
		3708	LOG llevInfo, "[ABT] $msg\n";
		3709	LOG llevInfo, "[ABT] [suppressed]\n";
2190	},	3710	}
2191	);	3711	}
		3712
		3713	# load additional modules
		3714	use cf::pod;
		3715
		3716	END { cf::emergency_save }
2192		3717
2193	1	3718	1
2194		3719

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