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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.139 by root, Fri Jan 5 19:12:03 2007 UTC vs.
Revision 1.379 by root, Thu Oct 4 23:59:07 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.64 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
		28	use Data::Dumper;
20	use Digest::MD5;	29	use Digest::MD5;
21	use Fcntl;	30	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.32 ();
24	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
25		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
27		44
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
30		47
31	$Coro::main->prio (Coro::PRIO_MAX); # 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 $RANDOM_MAPS = cf::localdir . "/random";	97	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	98
		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 $tick_start; # for load detecting purposes
56		105
57	binmode STDOUT;	106	binmode STDOUT;
58	binmode STDERR;	107	binmode STDERR;
59		108
60	# read virtual server time, if available	109	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
65	}	114	}
66		115
67	mkdir cf::localdir;	116	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		118
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
76		122
77	#############################################################################	123	#############################################################################
78		124
79	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
80		126
…		…
87	=item $cf::RUNTIME	133	=item $cf::RUNTIME
88		134
89	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
90	every server tick.	136	every server tick.
91		137
92	=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
93		141
94	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
95	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.
96		146
97	=item $cf::NOW	147	=item $cf::NOW
98		148
99	The time of the last (current) server tick.	149	The time of the last (current) server tick.
100		150
101	=item $cf::TICK	151	=item $cf::TICK
102		152
103	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.
104		164
105	=item %cf::CFG	165	=item %cf::CFG
106		166
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	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.
109		181
110	=back	182	=back
111		183
112	=cut	184	=cut
113		185
114	BEGIN {	186	BEGIN {
115	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	188	my $msg = join "", @_;
117	utf8::encode $msg;
118		189
119	$msg .= "\n"	190	$msg .= "\n"
120	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
121		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		194
122	LOG llevError, "cfperl: $msg";	195	LOG llevError, $msg;
123	};	196	};
124	}	197	}
125		198
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@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';
131	@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)
132		206
133	# 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
134	# within the Safe compartment.	208	# within the Safe compartment.
135	for my $pkg (qw(	209	for my $pkg (qw(
136	cf::global cf::attachable	210	cf::global cf::attachable
…		…
145		219
146	$Event::DIED = sub {	220	$Event::DIED = sub {
147	warn "error in event callback: @_";	221	warn "error in event callback: @_";
148	};	222	};
149		223
150	my %ext_pkg;	224	#############################################################################
151	my @exts;
152	my @hook;
153		225
154	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
155		227
156	=over 4	228	=over 4
157		229
158	=cut	230	=item dumpval $ref
159		231
160	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	}
161		252
162	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
163		254
164	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
165		256
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
174		258
175	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
176		260
177	=cut	261	=cut
178		262
179	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
181	JSON::Syck::Dump $_[0]	265	sub to_json ($) { $json_coder->encode ($_[0]) }
182	}	266	sub from_json ($) { $json_coder->decode ($_[0]) }
183		267
184	=item cf::lock_wait $string	268	=item cf::lock_wait $string
185		269
186	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
187		271
…		…
190	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
191	a Coro::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,
192	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
193	returned.	277	returned.
194		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
195	Lock names should begin with a unique identifier (for example, cf::map::find	282	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
197		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
198	=cut	289	=cut
199		290
200	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
201		293
202	sub lock_wait($) {	294	sub lock_wait($) {
203	my ($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#
204		301
205	# wait for lock, if any	302	# wait for lock, if any
206	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;	305	Coro::schedule;
…		…
214		311
215	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
216	lock_wait $key;	313	lock_wait $key;
217		314
218	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
219		317
220	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
221	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
223	}	322	}
224	}	323	}
225		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
226	sub freeze_mainloop {	331	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	332	return unless $TICK_WATCHER->is_active;
228		333
229	my $guard = Coro::guard { $TICK_WATCHER->start };	334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
230	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
231	$guard	338	$guard
232	}	339	}
233		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
234	=item cf::sync_job { BLOCK }	409	=item cf::sync_job { BLOCK }
235		410
236	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)
237	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
238	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.
239		415
240	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
241	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
242	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
243	fast or be very important.	419	fast or be very important.
…		…
246		422
247	sub sync_job(&) {	423	sub sync_job(&) {
248	my ($job) = @_;	424	my ($job) = @_;
249		425
250	if ($Coro::current == $Coro::main) {	426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
251	# this is the main coro, too bad, we have to block	429	# this is the main coro, too bad, we have to block
252	# till the operation succeeds, freezing the server :/	430	# till the operation succeeds, freezing the server :/
253		431
		432	LOG llevError | logBacktrace, Carp::longmess "sync job";#d#
		433
254	# TODO: use suspend/resume instead	434	# TODO: use suspend/resume instead
255	# (but this is cancel-safe)	435	# (but this is cancel-safe)
256	my $freeze_guard = freeze_mainloop;	436	my $freeze_guard = freeze_mainloop;
257		437
258	my $busy = 1;	438	my $busy = 1;
259	my @res;	439	my @res;
260		440
261	(Coro::async_pool {	441	(async {
		442	$Coro::current->desc ("sync job coro");
262	@res = eval { $job->() };	443	@res = eval { $job->() };
263	warn $@ if $@;	444	warn $@ if $@;
264	undef $busy;	445	undef $busy;
265	})->prio (Coro::PRIO_MAX);	446	})->prio (Coro::PRIO_MAX);
266		447
267	while ($busy) {	448	while ($busy) {
268	unless (Coro::cede) {	449	Coro::cede or Event::one_event;
269	Coro::nready ? Event::one_event 0 : Event::one_event;
270	Coro::cede_notself unless Coro::cede;
271	}	450	}
272	}	451
		452	$time = Event::time - $time;
		453
		454	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		455	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		456
		457	$tick_start += $time; # do not account sync jobs to server load
273		458
274	wantarray ? @res : $res[0]	459	wantarray ? @res : $res[0]
275	} else {	460	} else {
276	# we are in another coroutine, how wonderful, everything just works	461	# we are in another coroutine, how wonderful, everything just works
277		462
278	$job->()	463	$job->()
279	}	464	}
280	}	465	}
281		466
282	=item $coro = cf::coro { BLOCK }	467	=item $coro = cf::async_ext { BLOCK }
283		468
284	Creates (and readies) and returns a new coro. This coro is automcatially	469	Like async, but this coro is automatically being canceled when the
285	being canceled when the extension calling this is being unloaded.	470	extension calling this is being unloaded.
286		471
287	=cut	472	=cut
288		473
289	sub coro(&) {	474	sub async_ext(&) {
290	my $cb = shift;	475	my $cb = shift;
291		476
292	my $coro = &Coro::async_pool ($cb);	477	my $coro = &Coro::async ($cb);
293		478
294	$coro->on_destroy (sub {	479	$coro->on_destroy (sub {
295	delete $EXT_CORO{$coro+0};	480	delete $EXT_CORO{$coro+0};
296	});	481	});
297	$EXT_CORO{$coro+0} = $coro;	482	$EXT_CORO{$coro+0} = $coro;
298		483
299	$coro	484	$coro
300	}	485	}
301		486
302	sub write_runtime {	487	=item fork_call { }, $args
303	my $runtime = cf::localdir . "/runtime";
304		488
305	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	489	Executes the given code block with the given arguments in a seperate
306	or return;	490	process, returning the results. Everything must be serialisable with
		491	Coro::Storable. May, of course, block. Note that the executed sub may
		492	never block itself or use any form of Event handling.
307		493
308	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	494	=cut
309	(aio_write $fh, 0, (length $value), $value, 0) <= 0
310	and return;
311		495
312	aio_fsync $fh	496	sub fork_call(&@) {
313	and return;	497	my ($cb, @args) = @_;
314		498
315	close $fh	499	# we seemingly have to make a local copy of the whole thing,
316	or return;	500	# otherwise perl prematurely frees the stuff :/
		501	# TODO: investigate and fix (likely this will be rather laborious)
317		502
318	aio_rename "$runtime~", $runtime	503	my @res = Coro::Util::fork_eval {
319	and return;	504	reset_signals;
		505	&$cb
		506	}, @args;
320		507
		508	wantarray ? @res : $res[-1]
		509	}
		510
		511	=item $value = cf::db_get $family => $key
		512
		513	Returns a single value from the environment database.
		514
		515	=item cf::db_put $family => $key => $value
		516
		517	Stores the given C<$value> in the family. It can currently store binary
		518	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		519
		520	=item $db = cf::db_table "name"
		521
		522	Create and/or open a new database table. The string must not be "db" and must be unique
		523	within each server.
		524
		525	=cut
		526
		527	sub db_table($) {
		528	my ($name) = @_;
		529	my $db = BDB::db_create $DB_ENV;
		530
		531	eval {
		532	$db->set_flags (BDB::CHKSUM);
		533
		534	utf8::encode $name;
		535	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		536	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		537	cf::cleanup "db_open(db): $!" if $!;
		538	};
		539	cf::cleanup "db_open(db): $@" if $@;
		540
		541	$db
		542	}
		543
		544	our $DB;
		545
		546	sub db_init {
		547	cf::sync_job {
		548	$DB ||= db_table "db";
		549	};
		550	}
		551
		552	sub db_get($$) {
		553	my $key = "$_[0]/$_[1]";
		554
		555	cf::sync_job {
		556	BDB::db_get $DB, undef, $key, my $data;
		557
		558	$! ? ()
		559	: $data
321	1	560	}
		561	}
		562
		563	sub db_put($$$) {
		564	BDB::dbreq_pri 4;
		565	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		566	}
		567
		568	=item cf::cache $id => [$paths...], $processversion => $process
		569
		570	Generic caching function that returns the value of the resource $id,
		571	caching and regenerating as required.
		572
		573	This function can block.
		574
		575	=cut
		576
		577	sub cache {
		578	my ($id, $src, $processversion, $process) = @_;
		579
		580	my $meta =
		581	join "\x00",
		582	$processversion,
		583	map {
		584	aio_stat $_
		585	and Carp::croak "$_: $!";
		586
		587	($_, (stat _)[7,9])
		588	} @$src;
		589
		590	my $dbmeta = db_get cache => "$id/meta";
		591	if ($dbmeta ne $meta) {
		592	# changed, we may need to process
		593
		594	my @data;
		595	my $md5;
		596
		597	for (0 .. $#$src) {
		598	0 <= aio_load $src->[$_], $data[$_]
		599	or Carp::croak "$src->[$_]: $!";
		600	}
		601
		602	# if processing is expensive, check
		603	# checksum first
		604	if (1) {
		605	$md5 =
		606	join "\x00",
		607	$processversion,
		608	map {
		609	cf::cede_to_tick;
		610	($src->[$_], Digest::MD5::md5_hex $data[$_])
		611	} 0.. $#$src;
		612
		613
		614	my $dbmd5 = db_get cache => "$id/md5";
		615	if ($dbmd5 eq $md5) {
		616	db_put cache => "$id/meta", $meta;
		617
		618	return db_get cache => "$id/data";
		619	}
		620	}
		621
		622	my $t1 = Time::HiRes::time;
		623	my $data = $process->(\@data);
		624	my $t2 = Time::HiRes::time;
		625
		626	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		627
		628	db_put cache => "$id/data", $data;
		629	db_put cache => "$id/md5" , $md5;
		630	db_put cache => "$id/meta", $meta;
		631
		632	return $data;
		633	}
		634
		635	db_get cache => "$id/data"
		636	}
		637
		638	=item cf::datalog type => key => value, ...
		639
		640	Log a datalog packet of the given type with the given key-value pairs.
		641
		642	=cut
		643
		644	sub datalog($@) {
		645	my ($type, %kv) = @_;
		646	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
322	}	647	}
323		648
324	=back	649	=back
325		650
326	=cut	651	=cut
327
328	#############################################################################
329
330	package cf::path;
331
332	sub new {
333	my ($class, $path, $base) = @_;
334
335	$path = $path->as_string if ref $path;
336
337	my $self = bless { }, $class;
338
339	# {... are special paths that are not touched
340	# ?xxx/... are special absolute paths
341	# ?random/... random maps
342	# /! non-realised random map exit
343	# /... normal maps
344	# ~/... per-player maps without a specific player (DO NOT USE)
345	# ~user/... per-player map of a specific user
346
347	if ($path =~ /^{/) {
348	# fine as it is
349	} elsif ($path =~ s{^\?random/}{}) {
350	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
351	$self->{random} = cf::from_json $data;
352	} else {
353	if ($path =~ s{^~([^/]+)?}{}) {
354	$self->{user_rel} = 1;
355
356	if (defined $1) {
357	$self->{user} = $1;
358	} elsif ($base =~ m{^~([^/]+)/}) {
359	$self->{user} = $1;
360	} else {
361	warn "cannot resolve user-relative path without user <$path,$base>\n";
362	}
363	} elsif ($path =~ /^\//) {
364	# already absolute
365	} else {
366	$base =~ s{[^/]+/?$}{};
367	return $class->new ("$base/$path");
368	}
369
370	for ($path) {
371	redo if s{/\.?/}{/};
372	redo if s{/[^/]+/\.\./}{/};
373	}
374	}
375
376	$self->{path} = $path;
377
378	$self
379	}
380
381	# the name / primary key / in-game path
382	sub as_string {
383	my ($self) = @_;
384
385	$self->{user_rel} ? "~$self->{user}$self->{path}"
386	: $self->{random} ? "?random/$self->{path}"
387	: $self->{path}
388	}
389
390	# the displayed name, this is a one way mapping
391	sub visible_name {
392	my ($self) = @_;
393
394	# if (my $rmp = $self->{random}) {
395	# # todo: be more intelligent about this
396	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
397	# } else {
398	$self->as_string
399	# }
400	}
401
402	# escape the /'s in the path
403	sub _escaped_path {
404	# ∕ is U+2215
405	(my $path = $_[0]{path}) =~ s/\//∕/g;
406	$path
407	}
408
409	# the original (read-only) location
410	sub load_path {
411	my ($self) = @_;
412
413	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
414	}
415
416	# the temporary/swap location
417	sub save_path {
418	my ($self) = @_;
419
420	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
421	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
422	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
423	}
424
425	# the unique path, might be eq to save_path
426	sub uniq_path {
427	my ($self) = @_;
428
429	$self->{user_rel} || $self->{random}
430	? undef
431	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
432	}
433
434	# return random map parameters, or undef
435	sub random_map_params {
436	my ($self) = @_;
437
438	$self->{random}
439	}
440
441	# this is somewhat ugly, but style maps do need special treatment
442	sub is_style_map {
443	$_[0]{path} =~ m{^/styles/}
444	}
445
446	package cf;
447		652
448	#############################################################################	653	#############################################################################
449		654
450	=head2 ATTACHABLE OBJECTS	655	=head2 ATTACHABLE OBJECTS
451		656
…		…
453	attach callbacks/event handlers (a collection of which is called an "attachment")	658	attach callbacks/event handlers (a collection of which is called an "attachment")
454	to it. All such attachable objects support the following methods.	659	to it. All such attachable objects support the following methods.
455		660
456	In the following description, CLASS can be any of C<global>, C<object>	661	In the following description, CLASS can be any of C<global>, C<object>
457	C<player>, C<client> or C<map> (i.e. the attachable objects in	662	C<player>, C<client> or C<map> (i.e. the attachable objects in
458	crossfire+).	663	Crossfire TRT).
459		664
460	=over 4	665	=over 4
461		666
462	=item $attachable->attach ($attachment, key => $value...)	667	=item $attachable->attach ($attachment, key => $value...)
463		668
…		…
577	our @CB_TYPE = (); # registry for type (cf-object class) based events	782	our @CB_TYPE = (); # registry for type (cf-object class) based events
578	our @CB_MAP = ();	783	our @CB_MAP = ();
579		784
580	my %attachment;	785	my %attachment;
581		786
		787	sub cf::attachable::thawer_merge {
		788	# simply override everything except _meta
		789	local $_[0]{_meta};
		790	%{$_[0]} = %{$_[1]};
		791	}
		792
582	sub _attach_cb($$$$) {	793	sub _attach_cb($$$$) {
583	my ($registry, $event, $prio, $cb) = @_;	794	my ($registry, $event, $prio, $cb) = @_;
584		795
585	use sort 'stable';	796	use sort 'stable';
586		797
…		…
620	$registry = $CB_TYPE[$object_type] ||= [];	831	$registry = $CB_TYPE[$object_type] ||= [];
621		832
622	} elsif ($type eq "subtype") {	833	} elsif ($type eq "subtype") {
623	defined $object_type or Carp::croak "subtype specified without type";	834	defined $object_type or Carp::croak "subtype specified without type";
624	my $object_subtype = shift @arg;	835	my $object_subtype = shift @arg;
625	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	836	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
626		837
627	} elsif ($type eq "package") {	838	} elsif ($type eq "package") {
628	my $pkg = shift @arg;	839	my $pkg = shift @arg;
629		840
630	while (my ($name, $id) = each %cb_id) {	841	while (my ($name, $id) = each %cb_id) {
…		…
659	_attach $registry, $klass, @attach;	870	_attach $registry, $klass, @attach;
660	}	871	}
661		872
662	$obj->{$name} = \%arg;	873	$obj->{$name} = \%arg;
663	} else {	874	} else {
664	warn "object uses attachment '$name' that is not available, postponing.\n";	875	warn "object uses attachment '$name' which is not available, postponing.\n";
665	}	876	}
666		877
667	$obj->{_attachment}{$name} = undef;	878	$obj->{_attachment}{$name} = undef;
668	}	879	}
669		880
…		…
671	if (ref $_[0]) {	882	if (ref $_[0]) {
672	_object_attach @_;	883	_object_attach @_;
673	} else {	884	} else {
674	_attach shift->_attach_registry, @_;	885	_attach shift->_attach_registry, @_;
675	}	886	}
		887	_recalc_want;
676	};	888	};
677		889
678	# all those should be optimised	890	# all those should be optimised
679	sub cf::attachable::detach {	891	sub cf::attachable::detach {
680	my ($obj, $name) = @_;	892	my ($obj, $name) = @_;
…		…
683	delete $obj->{_attachment}{$name};	895	delete $obj->{_attachment}{$name};
684	reattach ($obj);	896	reattach ($obj);
685	} else {	897	} else {
686	Carp::croak "cannot, currently, detach class attachments";	898	Carp::croak "cannot, currently, detach class attachments";
687	}	899	}
		900	_recalc_want;
688	};	901	};
689		902
690	sub cf::attachable::attached {	903	sub cf::attachable::attached {
691	my ($obj, $name) = @_;	904	my ($obj, $name) = @_;
692		905
…		…
707	";	920	";
708	die if $@;	921	die if $@;
709	}	922	}
710		923
711	our $override;	924	our $override;
712	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	925	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
713		926
714	sub override {	927	sub override {
715	$override = 1;	928	$override = 1;
716	@invoke_results = ();	929	@INVOKE_RESULTS = (@_);
717	}	930	}
718		931
719	sub do_invoke {	932	sub do_invoke {
720	my $event = shift;	933	my $event = shift;
721	my $callbacks = shift;	934	my $callbacks = shift;
722		935
723	@invoke_results = ();	936	@INVOKE_RESULTS = ();
724		937
725	local $override;	938	local $override;
726		939
727	for (@$callbacks) {	940	for (@$callbacks) {
728	eval { &{$_->[1]} };	941	eval { &{$_->[1]} };
…		…
745		958
746	Generate an object-specific event with the given arguments.	959	Generate an object-specific event with the given arguments.
747		960
748	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	961	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
749	removed in future versions), and there is no public API to access override	962	removed in future versions), and there is no public API to access override
750	results (if you must, access C<@cf::invoke_results> directly).	963	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
751		964
752	=back	965	=back
753		966
754	=cut	967	=cut
755		968
756	#############################################################################	969	#############################################################################
757	# object support	970	# object support
		971	#
		972
		973	sub _can_merge {
		974	my ($ob1, $ob2) = @_;
		975
		976	local $Storable::canonical = 1;
		977	my $fob1 = Storable::freeze $ob1;
		978	my $fob2 = Storable::freeze $ob2;
		979
		980	$fob1 eq $fob2
		981	}
758		982
759	sub reattach {	983	sub reattach {
760	# basically do the same as instantiate, without calling instantiate	984	# basically do the same as instantiate, without calling instantiate
761	my ($obj) = @_;	985	my ($obj) = @_;
		986
		987	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
762		988
763	my $registry = $obj->registry;	989	my $registry = $obj->registry;
764		990
765	@$registry = ();	991	@$registry = ();
766		992
…		…
807	sub object_freezer_save {	1033	sub object_freezer_save {
808	my ($filename, $rdata, $objs) = @_;	1034	my ($filename, $rdata, $objs) = @_;
809		1035
810	sync_job {	1036	sync_job {
811	if (length $$rdata) {	1037	if (length $$rdata) {
		1038	utf8::decode (my $decname = $filename);
812	warn sprintf "saving %s (%d,%d)\n",	1039	warn sprintf "saving %s (%d,%d)\n",
813	$filename, length $$rdata, scalar @$objs;	1040	$decname, length $$rdata, scalar @$objs;
814		1041
815	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1042	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
816	chmod SAVE_MODE, $fh;	1043	chmod SAVE_MODE, $fh;
817	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1044	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
818	aio_fsync $fh;	1045	aio_fsync $fh if $cf::USE_FSYNC;
819	close $fh;	1046	close $fh;
820		1047
821	if (@$objs) {	1048	if (@$objs) {
822	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1049	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
823	chmod SAVE_MODE, $fh;	1050	chmod SAVE_MODE, $fh;
824	my $data = Storable::nfreeze { version => 1, objs => $objs };	1051	my $data = Storable::nfreeze { version => 1, objs => $objs };
825	aio_write $fh, 0, (length $data), $data, 0;	1052	aio_write $fh, 0, (length $data), $data, 0;
826	aio_fsync $fh;	1053	aio_fsync $fh if $cf::USE_FSYNC;
827	close $fh;	1054	close $fh;
828	aio_rename "$filename.pst~", "$filename.pst";	1055	aio_rename "$filename.pst~", "$filename.pst";
829	}	1056	}
830	} else {	1057	} else {
831	aio_unlink "$filename.pst";	1058	aio_unlink "$filename.pst";
…		…
837	}	1064	}
838	} else {	1065	} else {
839	aio_unlink $filename;	1066	aio_unlink $filename;
840	aio_unlink "$filename.pst";	1067	aio_unlink "$filename.pst";
841	}	1068	}
842	}	1069	};
843	}	1070	}
844		1071
845	sub object_freezer_as_string {	1072	sub object_freezer_as_string {
846	my ($rdata, $objs) = @_;	1073	my ($rdata, $objs) = @_;
847		1074
…		…
859	or return;	1086	or return;
860		1087
861	unless (aio_stat "$filename.pst") {	1088	unless (aio_stat "$filename.pst") {
862	(aio_load "$filename.pst", $av) >= 0	1089	(aio_load "$filename.pst", $av) >= 0
863	or return;	1090	or return;
		1091
864	$av = eval { (Storable::thaw $av)->{objs} };	1092	$av = eval { (Storable::thaw $av)->{objs} };
865	}	1093	}
866		1094
		1095	utf8::decode (my $decname = $filename);
867	warn sprintf "loading %s (%d)\n",	1096	warn sprintf "loading %s (%d,%d)\n",
868	$filename, length $data, scalar @{$av || []};#d#	1097	$decname, length $data, scalar @{$av || []};
		1098
869	return ($data, $av);	1099	($data, $av)
870	}	1100	}
		1101
		1102	=head2 COMMAND CALLBACKS
		1103
		1104	=over 4
		1105
		1106	=cut
871		1107
872	#############################################################################	1108	#############################################################################
873	# command handling &c	1109	# command handling &c
874		1110
875	=item cf::register_command $name => \&callback($ob,$args);	1111	=item cf::register_command $name => \&callback($ob,$args);
…		…
888	push @{ $COMMAND{$name} }, [$caller, $cb];	1124	push @{ $COMMAND{$name} }, [$caller, $cb];
889	}	1125	}
890		1126
891	=item cf::register_extcmd $name => \&callback($pl,$packet);	1127	=item cf::register_extcmd $name => \&callback($pl,$packet);
892		1128
893	Register a callbackf ro execution when the client sends an extcmd packet.	1129	Register a callback for execution when the client sends an (synchronous)
		1130	extcmd packet. Ext commands will be processed in the order they are
		1131	received by the server, like other user commands. The first argument is
		1132	the logged-in player. Ext commands can only be processed after a player
		1133	has logged in successfully.
894		1134
895	If the callback returns something, it is sent back as if reply was being	1135	If the callback returns something, it is sent back as if reply was being
896	called.	1136	called.
897		1137
		1138	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1139
		1140	Register a callback for execution when the client sends an (asynchronous)
		1141	exticmd packet. Exti commands are processed by the server as soon as they
		1142	are received, i.e. out of order w.r.t. other commands. The first argument
		1143	is a client socket. Exti commands can be received anytime, even before
		1144	log-in.
		1145
		1146	If the callback returns something, it is sent back as if reply was being
		1147	called.
		1148
898	=cut	1149	=cut
899		1150
900	sub register_extcmd {	1151	sub register_extcmd {
901	my ($name, $cb) = @_;	1152	my ($name, $cb) = @_;
902		1153
903	my $caller = caller;
904	#warn "registering extcmd '$name' to '$caller'";
905
906	$EXTCMD{$name} = [$cb, $caller];	1154	$EXTCMD{$name} = $cb;
		1155	}
		1156
		1157	sub register_exticmd {
		1158	my ($name, $cb) = @_;
		1159
		1160	$EXTICMD{$name} = $cb;
907	}	1161	}
908		1162
909	cf::player->attach (	1163	cf::player->attach (
910	on_command => sub {	1164	on_command => sub {
911	my ($pl, $name, $params) = @_;	1165	my ($pl, $name, $params) = @_;
…		…
920	cf::override;	1174	cf::override;
921	},	1175	},
922	on_extcmd => sub {	1176	on_extcmd => sub {
923	my ($pl, $buf) = @_;	1177	my ($pl, $buf) = @_;
924		1178
925	my $msg = eval { from_json $buf };	1179	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
926		1180
927	if (ref $msg) {	1181	if (ref $msg) {
		1182	my ($type, $reply, @payload) =
		1183	"ARRAY" eq ref $msg
		1184	? @$msg
		1185	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1186
		1187	my @reply;
		1188
928	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1189	if (my $cb = $EXTCMD{$type}) {
929	if (my %reply = $cb->[0]->($pl, $msg)) {	1190	@reply = $cb->($pl, @payload);
930	$pl->ext_reply ($msg->{msgid}, %reply);
931	}
932	}	1191	}
		1192
		1193	$pl->ext_reply ($reply, @reply)
		1194	if $reply;
		1195
933	} else {	1196	} else {
934	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1197	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
935	}	1198	}
936		1199
937	cf::override;	1200	cf::override;
938	},	1201	},
939	);	1202	);
940		1203
941	sub register {
942	my ($base, $pkg) = @_;
943
944	#TODO
945	}
946
947	sub load_extension {	1204	sub load_extensions {
		1205	cf::sync_job {
		1206	my %todo;
		1207
		1208	for my $path (<$LIBDIR/*.ext>) {
		1209	next unless -r $path;
		1210
		1211	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1212	my $base = $1;
		1213	my $pkg = $1;
		1214	$pkg =~ s/[^[:word:]]/_/g;
		1215	$pkg = "ext::$pkg";
		1216
		1217	open my $fh, "<:utf8", $path
		1218	or die "$path: $!";
		1219
		1220	my $source = do { local $/; <$fh> };
		1221
		1222	my %ext = (
		1223	path => $path,
		1224	base => $base,
		1225	pkg => $pkg,
		1226	);
		1227
		1228	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1229	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1230
		1231	$ext{source} =
		1232	"package $pkg; use strict; use utf8;\n"
		1233	. "#line 1 \"$path\"\n{\n"
		1234	. $source
		1235	. "\n};\n1";
		1236
		1237	$todo{$base} = \%ext;
		1238	}
		1239
		1240	my %done;
		1241	while (%todo) {
		1242	my $progress;
		1243
		1244	while (my ($k, $v) = each %todo) {
		1245	for (split /,\s*/, $v->{meta}{depends}) {
		1246	goto skip
		1247	unless exists $done{$_};
		1248	}
		1249
		1250	warn "... loading '$k' into '$v->{pkg}'\n";
		1251
		1252	unless (eval $v->{source}) {
		1253	my $msg = $@ ? "$v->{path}: $@\n"
		1254	: "$v->{base}: extension inactive.\n";
		1255
		1256	if (exists $v->{meta}{mandatory}) {
		1257	warn $msg;
		1258	warn "mandatory extension failed to load, exiting.\n";
		1259	exit 1;
		1260	}
		1261
		1262	warn $msg;
		1263	}
		1264
		1265	$done{$k} = delete $todo{$k};
		1266	push @EXTS, $v->{pkg};
		1267	$progress = 1;
		1268	}
		1269
		1270	skip:
		1271	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1272	unless $progress;
		1273	}
		1274	};
		1275	}
		1276
		1277	#############################################################################
		1278
		1279	=back
		1280
		1281	=head2 CORE EXTENSIONS
		1282
		1283	Functions and methods that extend core crossfire objects.
		1284
		1285	=cut
		1286
		1287	package cf::player;
		1288
		1289	use Coro::AIO;
		1290
		1291	=head3 cf::player
		1292
		1293	=over 4
		1294
		1295	=item cf::player::num_playing
		1296
		1297	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1298
		1299	=cut
		1300
		1301	sub num_playing {
		1302	scalar grep
		1303	$_->ob->map
		1304	&& !$_->hidden
		1305	&& !$_->ob->flag (cf::FLAG_WIZ),
		1306	cf::player::list
		1307	}
		1308
		1309	=item cf::player::find $login
		1310
		1311	Returns the given player object, loading it if necessary (might block).
		1312
		1313	=cut
		1314
		1315	sub playerdir($) {
		1316	"$PLAYERDIR/"
		1317	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1318	}
		1319
		1320	sub path($) {
		1321	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1322
		1323	(playerdir $login) . "/playerdata"
		1324	}
		1325
		1326	sub find_active($) {
		1327	$cf::PLAYER{$_[0]}
		1328	and $cf::PLAYER{$_[0]}->active
		1329	and $cf::PLAYER{$_[0]}
		1330	}
		1331
		1332	sub exists($) {
		1333	my ($login) = @_;
		1334
		1335	$cf::PLAYER{$login}
		1336	or cf::sync_job { !aio_stat path $login }
		1337	}
		1338
		1339	sub find($) {
		1340	return $cf::PLAYER{$_[0]} || do {
		1341	my $login = $_[0];
		1342
		1343	my $guard = cf::lock_acquire "user_find:$login";
		1344
		1345	$cf::PLAYER{$_[0]} || do {
		1346	# rename old playerfiles to new ones
		1347	#TODO: remove when no longer required
		1348	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1349	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1350	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1351	aio_unlink +(playerdir $login) . "/$login.pl";
		1352
		1353	my $f = new_from_file cf::object::thawer path $login
		1354	or return;
		1355
		1356	my $pl = cf::player::load_pl $f
		1357	or return;
		1358	local $cf::PLAYER_LOADING{$login} = $pl;
		1359	$f->resolve_delayed_derefs;
		1360	$cf::PLAYER{$login} = $pl
		1361	}
		1362	}
		1363	}
		1364
		1365	sub save($) {
		1366	my ($pl) = @_;
		1367
		1368	return if $pl->{deny_save};
		1369
		1370	my $path = path $pl;
		1371	my $guard = cf::lock_acquire "user_save:$path";
		1372
		1373	return if $pl->{deny_save};
		1374
		1375	aio_mkdir playerdir $pl, 0770;
		1376	$pl->{last_save} = $cf::RUNTIME;
		1377
		1378	$pl->save_pl ($path);
		1379	cf::cede_to_tick;
		1380	}
		1381
		1382	sub new($) {
		1383	my ($login) = @_;
		1384
		1385	my $self = create;
		1386
		1387	$self->ob->name ($login);
		1388	$self->{deny_save} = 1;
		1389
		1390	$cf::PLAYER{$login} = $self;
		1391
		1392	$self
		1393	}
		1394
		1395	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1396
		1397	=cut
		1398
		1399	sub send_msg {
		1400	my $ns = shift->ns
		1401	or return;
		1402	$ns->send_msg (@_);
		1403	}
		1404
		1405	=item $pl->quit_character
		1406
		1407	Nukes the player without looking back. If logged in, the connection will
		1408	be destroyed. May block for a long time.
		1409
		1410	=cut
		1411
		1412	sub quit_character {
		1413	my ($pl) = @_;
		1414
		1415	my $name = $pl->ob->name;
		1416
		1417	$pl->{deny_save} = 1;
		1418	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1419
		1420	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1421	$pl->deactivate;
		1422	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1423	$pl->ns->destroy if $pl->ns;
		1424
		1425	my $path = playerdir $pl;
		1426	my $temp = "$path~$cf::RUNTIME~deleting~";
		1427	aio_rename $path, $temp;
		1428	delete $cf::PLAYER{$pl->ob->name};
		1429	$pl->destroy;
		1430
		1431	my $prefix = qr<^~\Q$name\E/>;
		1432
		1433	# nuke player maps
		1434	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1435
		1436	IO::AIO::aio_rmtree $temp;
		1437	}
		1438
		1439	=item $pl->kick
		1440
		1441	Kicks a player out of the game. This destroys the connection.
		1442
		1443	=cut
		1444
		1445	sub kick {
		1446	my ($pl, $kicker) = @_;
		1447
		1448	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1449	$pl->killer ("kicked");
		1450	$pl->ns->destroy;
		1451	}
		1452
		1453	=item cf::player::list_logins
		1454
		1455	Returns am arrayref of all valid playernames in the system, can take a
		1456	while and may block, so not sync_job-capable, ever.
		1457
		1458	=cut
		1459
		1460	sub list_logins {
		1461	my $dirs = aio_readdir $PLAYERDIR
		1462	or return [];
		1463
		1464	my @logins;
		1465
		1466	for my $login (@$dirs) {
		1467	my $path = path $login;
		1468
		1469	# a .pst is a dead give-away for a valid player
		1470	unless (-e "$path.pst") {
		1471	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1472	aio_read $fh, 0, 512, my $buf, 0 or next;
		1473	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1474	}
		1475
		1476	utf8::decode $login;
		1477	push @logins, $login;
		1478	}
		1479
		1480	\@logins
		1481	}
		1482
		1483	=item $player->maps
		1484
		1485	Returns an arrayref of map paths that are private for this
		1486	player. May block.
		1487
		1488	=cut
		1489
		1490	sub maps($) {
		1491	my ($pl) = @_;
		1492
		1493	$pl = ref $pl ? $pl->ob->name : $pl;
		1494
		1495	my $files = aio_readdir playerdir $pl
		1496	or return;
		1497
		1498	my @paths;
		1499
		1500	for (@$files) {
		1501	utf8::decode $_;
		1502	next if /\.(?:pl|pst)$/;
		1503	next unless /^$PATH_SEP/o;
		1504
		1505	push @paths, cf::map::normalise "~$pl/$_";
		1506	}
		1507
		1508	\@paths
		1509	}
		1510
		1511	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1512
		1513	Expand crossfire pod fragments into protocol xml.
		1514
		1515	=cut
		1516
		1517	sub expand_cfpod {
		1518	((my $self), (local $_)) = @_;
		1519
		1520	# escape & and <
		1521	s/&/&amp;/g;
		1522	s/(?<![BIUGHT])</&lt;/g;
		1523
		1524	# this is buggy, it needs to properly take care of nested <'s
		1525
		1526	1 while
		1527	# replace B<>, I<>, U<> etc.
		1528	s/B<([^\>]*)>/<b>$1<\/b>/
		1529	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1530	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1531	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1532	# replace G<male|female> tags
		1533	|| s{G<([^>|]*)\|([^>]*)>}{
		1534	$self->gender ? $2 : $1
		1535	}ge
		1536	# replace H<hint text>
		1537	|| s{H<([^\>]*)>}
		1538	{
		1539	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1540	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1541	"")
		1542	[$self->{hintmode}]
		1543	}ge;
		1544
		1545	# create single paragraphs (very hackish)
		1546	s/(?<=\S)\n(?=\w)/ /g;
		1547
		1548	# compress some whitespace
		1549	s/\s+\n/\n/g; # ws line-ends
		1550	s/\n\n+/\n/g; # double lines
		1551	s/^\n+//; # beginning lines
		1552	s/\n+$//; # ending lines
		1553
		1554	$_
		1555	}
		1556
		1557	sub hintmode {
		1558	$_[0]{hintmode} = $_[1] if @_ > 1;
		1559	$_[0]{hintmode}
		1560	}
		1561
		1562	=item $player->ext_reply ($msgid, @msg)
		1563
		1564	Sends an ext reply to the player.
		1565
		1566	=cut
		1567
		1568	sub ext_reply($$@) {
		1569	my ($self, $id, @msg) = @_;
		1570
		1571	$self->ns->ext_reply ($id, @msg)
		1572	}
		1573
		1574	=item $player->ext_msg ($type, @msg)
		1575
		1576	Sends an ext event to the client.
		1577
		1578	=cut
		1579
		1580	sub ext_msg($$@) {
		1581	my ($self, $type, @msg) = @_;
		1582
		1583	$self->ns->ext_msg ($type, @msg);
		1584	}
		1585
		1586	=head3 cf::region
		1587
		1588	=over 4
		1589
		1590	=cut
		1591
		1592	package cf::region;
		1593
		1594	=item cf::region::find_by_path $path
		1595
		1596	Tries to decuce the likely region for a map knowing only its path.
		1597
		1598	=cut
		1599
		1600	sub find_by_path($) {
948	my ($path) = @_;	1601	my ($path) = @_;
949		1602
950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1603	my ($match, $specificity);
951	my $base = $1;
952	my $pkg = $1;
953	$pkg =~ s/[^[:word:]]/_/g;
954	$pkg = "ext::$pkg";
955		1604
956	warn "loading '$path' into '$pkg'\n";	1605	for my $region (list) {
957		1606	if ($region->{match} && $path =~ $region->{match}) {
958	open my $fh, "<:utf8", $path	1607	($match, $specificity) = ($region, $region->specificity)
959	or die "$path: $!";	1608	if $region->specificity > $specificity;
960		1609	}
961	my $source =
962	"package $pkg; use strict; use utf8;\n"
963	. "#line 1 \"$path\"\n{\n"
964	. (do { local $/; <$fh> })
965	. "\n};\n1";
966
967	eval $source
968	or die $@ ? "$path: $@\n"
969	: "extension disabled.\n";
970
971	push @exts, $pkg;
972	$ext_pkg{$base} = $pkg;
973
974	# no strict 'refs';
975	# @{"$pkg\::ISA"} = ext::;
976
977	register $base, $pkg;
978	}
979
980	sub unload_extension {
981	my ($pkg) = @_;
982
983	warn "removing extension $pkg\n";
984
985	# remove hooks
986	#TODO
987	# for my $idx (0 .. $#PLUGIN_EVENT) {
988	# delete $hook[$idx]{$pkg};
989	# }	1610	}
990		1611
991	# remove commands	1612	$match
992	for my $name (keys %COMMAND) {
993	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
994
995	if (@cb) {
996	$COMMAND{$name} = \@cb;
997	} else {
998	delete $COMMAND{$name};
999	}
1000	}
1001
1002	# remove extcmds
1003	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1004	delete $EXTCMD{$name};
1005	}
1006
1007	if (my $cb = $pkg->can ("unload")) {
1008	eval {
1009	$cb->($pkg);
1010	1
1011	} or warn "$pkg unloaded, but with errors: $@";
1012	}
1013
1014	Symbol::delete_package $pkg;
1015	}
1016
1017	sub load_extensions {
1018	for my $ext (<$LIBDIR/*.ext>) {
1019	next unless -r $ext;
1020	eval {
1021	load_extension $ext;
1022	1
1023	} or warn "$ext not loaded: $@";
1024	}
1025	}
1026
1027	#############################################################################
1028	# load/save/clean perl data associated with a map
1029
1030	*cf::mapsupport::on_clean = sub {
1031	my ($map) = @_;
1032
1033	my $path = $map->tmpname;
1034	defined $path or return;
1035
1036	unlink "$path.pst";
1037	};
1038
1039	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1040
1041	#############################################################################
1042	# load/save perl data associated with player->ob objects
1043
1044	sub all_objects(@) {
1045	@_, map all_objects ($_->inv), @_
1046	}
1047
1048	# TODO: compatibility cruft, remove when no longer needed
1049	cf::player->attach (
1050	on_load => sub {
1051	my ($pl, $path) = @_;
1052
1053	for my $o (all_objects $pl->ob) {
1054	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1055	$o->set_ob_key_value ("_perl_data");
1056
1057	%$o = %{ Storable::thaw pack "H*", $value };
1058	}
1059	}
1060	},
1061	);
1062
1063	#############################################################################
1064
1065	=head2 CORE EXTENSIONS
1066
1067	Functions and methods that extend core crossfire objects.
1068
1069	=head3 cf::player
1070
1071	=over 4
1072
1073	=item cf::player::exists $login
1074
1075	Returns true when the given account exists.
1076
1077	=cut
1078
1079	sub cf::player::exists($) {
1080	cf::player::find $_[0]
1081	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1082	}
1083
1084	=item $player->ext_reply ($msgid, $msgtype, %msg)
1085
1086	Sends an ext reply to the player.
1087
1088	=cut
1089
1090	sub cf::player::ext_reply($$$%) {
1091	my ($self, $id, %msg) = @_;
1092
1093	$msg{msgid} = $id;
1094
1095	$self->send ("ext " . to_json \%msg);
1096	}	1613	}
1097		1614
1098	=back	1615	=back
1099
1100		1616
1101	=head3 cf::map	1617	=head3 cf::map
1102		1618
1103	=over 4	1619	=over 4
1104		1620
…		…
1107	package cf::map;	1623	package cf::map;
1108		1624
1109	use Fcntl;	1625	use Fcntl;
1110	use Coro::AIO;	1626	use Coro::AIO;
1111		1627
		1628	use overload
		1629	'""' => \&as_string,
		1630	fallback => 1;
		1631
1112	our $MAX_RESET = 3600;	1632	our $MAX_RESET = 3600;
1113	our $DEFAULT_RESET = 3000;	1633	our $DEFAULT_RESET = 3000;
1114		1634
1115	sub generate_random_map {	1635	sub generate_random_map {
1116	my ($path, $rmp) = @_;	1636	my ($self, $rmp) = @_;
1117
1118	# mit "rum" bekleckern, nicht	1637	# mit "rum" bekleckern, nicht
1119	cf::map::_create_random_map	1638	$self->_create_random_map (
1120	$path,
1121	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1639	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1122	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1640	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1123	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1641	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1124	$rmp->{exit_on_final_map},	1642	$rmp->{exit_on_final_map},
1125	$rmp->{xsize}, $rmp->{ysize},	1643	$rmp->{xsize}, $rmp->{ysize},
1126	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1644	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1127	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1645	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1128	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1646	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1129	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1647	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1130	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1648	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1131	(cf::region::find $rmp->{region})	1649	(cf::region::find $rmp->{region}), $rmp->{custom}
		1650	)
		1651	}
		1652
		1653	=item cf::map->register ($regex, $prio)
		1654
		1655	Register a handler for the map path matching the given regex at the
		1656	givne priority (higher is better, built-in handlers have priority 0, the
		1657	default).
		1658
		1659	=cut
		1660
		1661	sub register {
		1662	my (undef, $regex, $prio) = @_;
		1663	my $pkg = caller;
		1664
		1665	no strict;
		1666	push @{"$pkg\::ISA"}, __PACKAGE__;
		1667
		1668	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1669	}
		1670
		1671	# also paths starting with '/'
		1672	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1673
		1674	sub thawer_merge {
		1675	my ($self, $merge) = @_;
		1676
		1677	# we have to keep some variables in memory intact
		1678	local $self->{path};
		1679	local $self->{load_path};
		1680
		1681	$self->SUPER::thawer_merge ($merge);
		1682	}
		1683
		1684	sub normalise {
		1685	my ($path, $base) = @_;
		1686
		1687	$path = "$path"; # make sure its a string
		1688
		1689	$path =~ s/\.map$//;
		1690
		1691	# map plan:
		1692	#
		1693	# /! non-realised random map exit (special hack!)
		1694	# {... are special paths that are not being touched
		1695	# ?xxx/... are special absolute paths
		1696	# ?random/... random maps
		1697	# /... normal maps
		1698	# ~user/... per-player map of a specific user
		1699
		1700	$path =~ s/$PATH_SEP/\//go;
		1701
		1702	# treat it as relative path if it starts with
		1703	# something that looks reasonable
		1704	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1705	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1706
		1707	$base =~ s{[^/]+/?$}{};
		1708	$path = "$base/$path";
		1709	}
		1710
		1711	for ($path) {
		1712	redo if s{//}{/};
		1713	redo if s{/\.?/}{/};
		1714	redo if s{/[^/]+/\.\./}{/};
		1715	}
		1716
		1717	$path
		1718	}
		1719
		1720	sub new_from_path {
		1721	my (undef, $path, $base) = @_;
		1722
		1723	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1724
		1725	$path = normalise $path, $base;
		1726
		1727	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1728	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1729	my $self = bless cf::map::new, $pkg;
		1730	$self->{path} = $path; $self->path ($path);
		1731	$self->init; # pass $1 etc.
		1732	return $self;
		1733	}
		1734	}
		1735
		1736	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1737	()
		1738	}
		1739
		1740	sub init {
		1741	my ($self) = @_;
		1742
		1743	$self
		1744	}
		1745
		1746	sub as_string {
		1747	my ($self) = @_;
		1748
		1749	"$self->{path}"
		1750	}
		1751
		1752	# the displayed name, this is a one way mapping
		1753	sub visible_name {
		1754	&as_string
		1755	}
		1756
		1757	# the original (read-only) location
		1758	sub load_path {
		1759	my ($self) = @_;
		1760
		1761	"$MAPDIR/$self->{path}.map"
		1762	}
		1763
		1764	# the temporary/swap location
		1765	sub save_path {
		1766	my ($self) = @_;
		1767
		1768	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1769	"$TMPDIR/$path.map"
		1770	}
		1771
		1772	# the unique path, undef == no special unique path
		1773	sub uniq_path {
		1774	my ($self) = @_;
		1775
		1776	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1777	"$UNIQUEDIR/$path"
1132	}	1778	}
1133		1779
1134	# and all this just because we cannot iterate over	1780	# and all this just because we cannot iterate over
1135	# all maps in C++...	1781	# all maps in C++...
1136	sub change_all_map_light {	1782	sub change_all_map_light {
…		…
1138		1784
1139	$_->change_map_light ($change)	1785	$_->change_map_light ($change)
1140	for grep $_->outdoor, values %cf::MAP;	1786	for grep $_->outdoor, values %cf::MAP;
1141	}	1787	}
1142		1788
		1789	sub decay_objects {
		1790	my ($self) = @_;
		1791
		1792	return if $self->{deny_reset};
		1793
		1794	$self->do_decay_objects;
		1795	}
		1796
		1797	sub unlink_save {
		1798	my ($self) = @_;
		1799
		1800	utf8::encode (my $save = $self->save_path);
		1801	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1802	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1803	}
		1804
1143	sub try_load_header($) {	1805	sub load_header_from($) {
1144	my ($path) = @_;	1806	my ($self, $path) = @_;
1145		1807
1146	utf8::encode $path;	1808	utf8::encode $path;
1147	aio_open $path, O_RDONLY, 0	1809	my $f = new_from_file cf::object::thawer $path
1148	or return;	1810	or return;
1149		1811
1150	my $map = cf::map::new	1812	$self->_load_header ($f)
1151	or return;	1813	or return;
1152		1814
1153	# for better error messages only, will be overwritten	1815	local $MAP_LOADING{$self->{path}} = $self;
1154	$map->path ($path);	1816	$f->resolve_delayed_derefs;
1155		1817
1156	$map->load_header ($path)	1818	$self->{load_path} = $path;
		1819
		1820	1
		1821	}
		1822
		1823	sub load_header_orig {
		1824	my ($self) = @_;
		1825
		1826	$self->load_header_from ($self->load_path)
		1827	}
		1828
		1829	sub load_header_temp {
		1830	my ($self) = @_;
		1831
		1832	$self->load_header_from ($self->save_path)
		1833	}
		1834
		1835	sub prepare_temp {
		1836	my ($self) = @_;
		1837
		1838	$self->last_access ((delete $self->{last_access})
		1839	|| $cf::RUNTIME); #d#
		1840	# safety
		1841	$self->{instantiate_time} = $cf::RUNTIME
		1842	if $self->{instantiate_time} > $cf::RUNTIME;
		1843	}
		1844
		1845	sub prepare_orig {
		1846	my ($self) = @_;
		1847
		1848	$self->{load_original} = 1;
		1849	$self->{instantiate_time} = $cf::RUNTIME;
		1850	$self->last_access ($cf::RUNTIME);
		1851	$self->instantiate;
		1852	}
		1853
		1854	sub load_header {
		1855	my ($self) = @_;
		1856
		1857	if ($self->load_header_temp) {
		1858	$self->prepare_temp;
		1859	} else {
		1860	$self->load_header_orig
1157	or return;	1861	or return;
		1862	$self->prepare_orig;
		1863	}
1158		1864
1159	$map->{load_path} = $path;	1865	$self->{deny_reset} = 1
		1866	if $self->no_reset;
1160		1867
1161	$map	1868	$self->default_region (cf::region::find_by_path $self->{path})
		1869	unless $self->default_region;
		1870
		1871	1
1162	}	1872	}
1163		1873
1164	sub find;	1874	sub find;
1165	sub find {	1875	sub find {
1166	my ($path, $origin) = @_;	1876	my ($path, $origin) = @_;
1167		1877
1168	#warn "find<$path,$origin>\n";#d#
1169
1170	$path = new cf::path $path, $origin && $origin->path;	1878	$path = normalise $path, $origin && $origin->path;
1171	my $key = $path->as_string;
1172		1879
		1880	cf::lock_wait "map_data:$path";#d#remove
1173	cf::lock_wait "map_find:$key";	1881	cf::lock_wait "map_find:$path";
1174		1882
1175	$cf::MAP{$key} || do {	1883	$cf::MAP{$path} || do {
1176	my $guard = cf::lock_acquire "map_find:$key";	1884	my $guard1 = cf::lock_acquire "map_find:$path";
		1885	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1177		1886
1178	# do it the slow way	1887	my $map = new_from_path cf::map $path
1179	my $map = try_load_header $path->save_path;
1180
1181	Coro::cede;
1182
1183	if ($map) {
1184	$map->last_access ((delete $map->{last_access})
1185	|| $cf::RUNTIME); #d#
1186	# safety
1187	$map->{instantiate_time} = $cf::RUNTIME
1188	if $map->{instantiate_time} > $cf::RUNTIME;
1189	} else {
1190	if (my $rmp = $path->random_map_params) {
1191	$map = generate_random_map $key, $rmp;
1192	} else {
1193	$map = try_load_header $path->load_path;
1194	}
1195
1196	$map or return;	1888	or return;
1197		1889
1198	$map->{load_original} = 1;
1199	$map->{instantiate_time} = $cf::RUNTIME;
1200	$map->last_access ($cf::RUNTIME);
1201	$map->instantiate;
1202
1203	# per-player maps become, after loading, normal maps
1204	$map->per_player (0) if $path->{user_rel};
1205	}
1206
1207	$map->path ($key);
1208	$map->{path} = $path;
1209	$map->{last_save} = $cf::RUNTIME;	1890	$map->{last_save} = $cf::RUNTIME;
1210		1891
1211	Coro::cede;	1892	$map->load_header
		1893	or return;
1212		1894
1213	if ($map->should_reset) {	1895	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1896	# doing this can freeze the server in a sync job, obviously
		1897	#$cf::WAIT_FOR_TICK->wait;
		1898	undef $guard1;
		1899	undef $guard2;
1214	$map->reset;	1900	$map->reset;
1215	undef $guard;
1216	$map = find $path	1901	return find $path;
1217	or return;
1218	}	1902	}
1219		1903
1220	$cf::MAP{$key} = $map	1904	$cf::MAP{$path} = $map
1221	}	1905	}
1222	}	1906	}
		1907
		1908	sub pre_load { }
		1909	sub post_load { }
1223		1910
1224	sub load {	1911	sub load {
1225	my ($self) = @_;	1912	my ($self) = @_;
1226		1913
		1914	local $self->{deny_reset} = 1; # loading can take a long time
		1915
1227	my $path = $self->{path};	1916	my $path = $self->{path};
		1917
		1918	{
1228	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1919	my $guard = cf::lock_acquire "map_data:$path";
1229		1920
		1921	return unless $self->valid;
1230	return if $self->in_memory != cf::MAP_SWAPPED;	1922	return unless $self->in_memory == cf::MAP_SWAPPED;
1231		1923
1232	$self->in_memory (cf::MAP_LOADING);	1924	$self->in_memory (cf::MAP_LOADING);
1233		1925
1234	$self->alloc;	1926	$self->alloc;
1235	$self->load_objects ($self->{load_path}, 1)	1927
		1928	$self->pre_load;
		1929	cf::cede_to_tick;
		1930
		1931	my $f = new_from_file cf::object::thawer $self->{load_path};
		1932	$f->skip_block;
		1933	$self->_load_objects ($f)
1236	or return;	1934	or return;
1237		1935
1238	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1936	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1239	if delete $self->{load_original};	1937	if delete $self->{load_original};
1240		1938
1241	if (my $uniq = $path->uniq_path) {	1939	if (my $uniq = $self->uniq_path) {
1242	utf8::encode $uniq;	1940	utf8::encode $uniq;
1243	if (aio_open $uniq, O_RDONLY, 0) {	1941	unless (aio_stat $uniq) {
		1942	if (my $f = new_from_file cf::object::thawer $uniq) {
1244	$self->clear_unique_items;	1943	$self->clear_unique_items;
1245	$self->load_objects ($uniq, 0);	1944	$self->_load_objects ($f);
		1945	$f->resolve_delayed_derefs;
		1946	}
1246	}	1947	}
1247	}	1948	}
1248		1949
1249	Coro::cede;	1950	$f->resolve_delayed_derefs;
1250		1951
		1952	cf::cede_to_tick;
1251	# now do the right thing for maps	1953	# now do the right thing for maps
1252	$self->link_multipart_objects;	1954	$self->link_multipart_objects;
1253
1254	if ($self->{path}->is_style_map) {
1255	$self->{deny_save} = 1;
1256	$self->{deny_reset} = 1;
1257	} else {
1258	$self->fix_auto_apply;
1259	$self->decay_objects;
1260	$self->update_buttons;
1261	$self->set_darkness_map;
1262	$self->difficulty ($self->estimate_difficulty)	1955	$self->difficulty ($self->estimate_difficulty)
1263	unless $self->difficulty;	1956	unless $self->difficulty;
		1957	cf::cede_to_tick;
		1958
		1959	unless ($self->{deny_activate}) {
		1960	$self->decay_objects;
		1961	$self->fix_auto_apply;
		1962	$self->update_buttons;
		1963	cf::cede_to_tick;
		1964	$self->set_darkness_map;
		1965	cf::cede_to_tick;
1264	$self->activate;	1966	$self->activate;
1265	}	1967	}
1266		1968
1267	Coro::cede;	1969	$self->{last_save} = $cf::RUNTIME;
		1970	$self->last_access ($cf::RUNTIME);
1268		1971
1269	$self->in_memory (cf::MAP_IN_MEMORY);	1972	$self->in_memory (cf::MAP_IN_MEMORY);
		1973	}
		1974
		1975	$self->post_load;
		1976	}
		1977
		1978	sub customise_for {
		1979	my ($self, $ob) = @_;
		1980
		1981	return find "~" . $ob->name . "/" . $self->{path}
		1982	if $self->per_player;
		1983
		1984	# return find "?party/" . $ob->name . "/" . $self->{path}
		1985	# if $self->per_party;
		1986
		1987	$self
		1988	}
		1989
		1990	# find and load all maps in the 3x3 area around a map
		1991	sub load_neighbours {
		1992	my ($map) = @_;
		1993
		1994	my @neigh; # diagonal neighbours
		1995
		1996	for (0 .. 3) {
		1997	my $neigh = $map->tile_path ($_)
		1998	or next;
		1999	$neigh = find $neigh, $map
		2000	or next;
		2001	$neigh->load;
		2002
		2003	push @neigh,
		2004	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2005	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2006	}
		2007
		2008	for (grep defined $_->[0], @neigh) {
		2009	my ($path, $origin) = @$_;
		2010	my $neigh = find $path, $origin
		2011	or next;
		2012	$neigh->load;
		2013	}
1270	}	2014	}
1271		2015
1272	sub find_sync {	2016	sub find_sync {
1273	my ($path, $origin) = @_;	2017	my ($path, $origin) = @_;
1274		2018
1275	cf::sync_job {	2019	cf::sync_job { find $path, $origin }
1276	my $map = cf::map::find $path, $origin;
1277	$map
1278	}
1279	}	2020	}
1280		2021
1281	sub do_load_sync {	2022	sub do_load_sync {
1282	my ($map) = @_;	2023	my ($map) = @_;
1283		2024
		2025	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2026	if $Coro::current == $Coro::main;
		2027
1284	cf::sync_job { $map->load };	2028	cf::sync_job { $map->load };
		2029	}
		2030
		2031	our %MAP_PREFETCH;
		2032	our $MAP_PREFETCHER = undef;
		2033
		2034	sub find_async {
		2035	my ($path, $origin, $load) = @_;
		2036
		2037	$path = normalise $path, $origin && $origin->{path};
		2038
		2039	if (my $map = $cf::MAP{$path}) {
		2040	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2041	}
		2042
		2043	$MAP_PREFETCH{$path} |= $load;
		2044
		2045	$MAP_PREFETCHER ||= cf::async {
		2046	$Coro::current->{desc} = "map prefetcher";
		2047
		2048	while (%MAP_PREFETCH) {
		2049	while (my ($k, $v) = each %MAP_PREFETCH) {
		2050	if (my $map = find $k) {
		2051	$map->load if $v;
		2052	}
		2053
		2054	delete $MAP_PREFETCH{$k};
		2055	}
		2056	}
		2057	undef $MAP_PREFETCHER;
		2058	};
		2059	$MAP_PREFETCHER->prio (6);
		2060
		2061	()
1285	}	2062	}
1286		2063
1287	sub save {	2064	sub save {
1288	my ($self) = @_;	2065	my ($self) = @_;
1289		2066
1290	my $lock = cf::lock_acquire "map_data:" . $self->path;	2067	my $lock = cf::lock_acquire "map_data:$self->{path}";
1291		2068
1292	$self->{last_save} = $cf::RUNTIME;	2069	$self->{last_save} = $cf::RUNTIME;
1293		2070
1294	return unless $self->dirty;	2071	return unless $self->dirty;
1295		2072
1296	my $save = $self->{path}->save_path; utf8::encode $save;	2073	my $save = $self->save_path; utf8::encode $save;
1297	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2074	my $uniq = $self->uniq_path; utf8::encode $uniq;
1298		2075
1299	$self->{load_path} = $save;	2076	$self->{load_path} = $save;
1300		2077
1301	return if $self->{deny_save};	2078	return if $self->{deny_save};
1302		2079
1303	local $self->{last_access} = $self->last_access;#d#	2080	local $self->{last_access} = $self->last_access;#d#
1304		2081
		2082	cf::async {
		2083	$Coro::current->{desc} = "map player save";
		2084	$_->contr->save for $self->players;
		2085	};
		2086
1305	if ($uniq) {	2087	if ($uniq) {
1306	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2088	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1307	$self->save_objects ($uniq, cf::IO_UNIQUES);	2089	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1308	} else {	2090	} else {
1309	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2091	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1310	}	2092	}
1311	}	2093	}
1312		2094
1313	sub swap_out {	2095	sub swap_out {
1314	my ($self) = @_;	2096	my ($self) = @_;
1315		2097
1316	# save first because save cedes	2098	# save first because save cedes
1317	$self->save;	2099	$self->save;
1318		2100
1319	my $lock = cf::lock_acquire "map_data:" . $self->path;	2101	my $lock = cf::lock_acquire "map_data:$self->{path}";
1320		2102
1321	return if $self->players;	2103	return if $self->players;
1322	return if $self->in_memory != cf::MAP_IN_MEMORY;	2104	return if $self->in_memory != cf::MAP_IN_MEMORY;
1323	return if $self->{deny_save};	2105	return if $self->{deny_save};
1324		2106
		2107	$self->in_memory (cf::MAP_SWAPPED);
		2108
		2109	$self->deactivate;
		2110	$_->clear_links_to ($self) for values %cf::MAP;
1325	$self->clear;	2111	$self->clear;
1326	$self->in_memory (cf::MAP_SWAPPED);
1327	}	2112	}
1328		2113
1329	sub reset_at {	2114	sub reset_at {
1330	my ($self) = @_;	2115	my ($self) = @_;
1331		2116
1332	# TODO: safety, remove and allow resettable per-player maps	2117	# TODO: safety, remove and allow resettable per-player maps
1333	return 1e99 if $self->{path}{user_rel};
1334	return 1e99 if $self->{deny_reset};	2118	return 1e99 if $self->{deny_reset};
1335		2119
1336	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2120	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1337	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2121	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1338		2122
…		…
1343	my ($self) = @_;	2127	my ($self) = @_;
1344		2128
1345	$self->reset_at <= $cf::RUNTIME	2129	$self->reset_at <= $cf::RUNTIME
1346	}	2130	}
1347		2131
1348	sub unlink_save {
1349	my ($self) = @_;
1350
1351	utf8::encode (my $save = $self->{path}->save_path);
1352	aioreq_pri 3; IO::AIO::aio_unlink $save;
1353	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1354	}
1355
1356	sub rename {
1357	my ($self, $new_path) = @_;
1358
1359	$self->unlink_save;
1360
1361	delete $cf::MAP{$self->path};
1362	$self->{path} = new cf::path $new_path;
1363	$self->path ($self->{path}->as_string);
1364	$cf::MAP{$self->path} = $self;
1365
1366	$self->save;
1367	}
1368
1369	sub reset {	2132	sub reset {
1370	my ($self) = @_;	2133	my ($self) = @_;
1371		2134
1372	my $lock = cf::lock_acquire "map_data:" . $self->path;	2135	my $lock = cf::lock_acquire "map_data:$self->{path}";
1373		2136
1374	return if $self->players;	2137	return if $self->players;
1375	return if $self->{path}{user_rel};#d#
1376		2138
1377	warn "resetting map ", $self->path;#d#	2139	warn "resetting map ", $self->path;
		2140
		2141	$self->in_memory (cf::MAP_SWAPPED);
		2142
		2143	# need to save uniques path
		2144	unless ($self->{deny_save}) {
		2145	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2146
		2147	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2148	if $uniq;
		2149	}
1378		2150
1379	delete $cf::MAP{$self->path};	2151	delete $cf::MAP{$self->path};
1380		2152
		2153	$self->deactivate;
1381	$_->clear_links_to ($self) for values %cf::MAP;	2154	$_->clear_links_to ($self) for values %cf::MAP;
		2155	$self->clear;
1382		2156
1383	$self->unlink_save;	2157	$self->unlink_save;
1384	$self->destroy;	2158	$self->destroy;
1385	}	2159	}
1386		2160
1387	my $nuke_counter = "aaaa";	2161	my $nuke_counter = "aaaa";
1388		2162
1389	sub nuke {	2163	sub nuke {
1390	my ($self) = @_;	2164	my ($self) = @_;
1391		2165
		2166	{
		2167	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2168
		2169	delete $cf::MAP{$self->path};
		2170
		2171	$self->unlink_save;
		2172
		2173	bless $self, "cf::map";
		2174	delete $self->{deny_reset};
1392	$self->{deny_save} = 1;	2175	$self->{deny_save} = 1;
1393	$self->reset_timeout (1);	2176	$self->reset_timeout (1);
1394	$self->rename ("{nuke}/" . ($nuke_counter++));	2177	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2178
		2179	$cf::MAP{$self->path} = $self;
		2180	}
		2181
1395	$self->reset; # polite request, might not happen	2182	$self->reset; # polite request, might not happen
1396	}	2183	}
1397		2184
1398	sub customise_for {	2185	=item $maps = cf::map::tmp_maps
1399	my ($map, $ob) = @_;
1400		2186
1401	if ($map->per_player) {	2187	Returns an arrayref with all map paths of currently instantiated and saved
1402	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2188	maps. May block.
		2189
		2190	=cut
		2191
		2192	sub tmp_maps() {
1403	}	2193	[
1404		2194	map {
1405	$map	2195	utf8::decode $_;
		2196	/\.map$/
		2197	? normalise $_
		2198	: ()
		2199	} @{ aio_readdir $TMPDIR or [] }
		2200	]
1406	}	2201	}
1407		2202
1408	sub emergency_save {	2203	=item $maps = cf::map::random_maps
1409	my $freeze_guard = cf::freeze_mainloop;
1410		2204
1411	warn "enter emergency map save\n";	2205	Returns an arrayref with all map paths of currently instantiated and saved
		2206	random maps. May block.
1412		2207
1413	cf::sync_job {	2208	=cut
1414	warn "begin emergency map save\n";
1415	$_->save for values %cf::MAP;
1416	};
1417		2209
1418	warn "end emergency map save\n";	2210	sub random_maps() {
		2211	[
		2212	map {
		2213	utf8::decode $_;
		2214	/\.map$/
		2215	? normalise "?random/$_"
		2216	: ()
		2217	} @{ aio_readdir $RANDOMDIR or [] }
		2218	]
		2219	}
		2220
		2221	=item cf::map::unique_maps
		2222
		2223	Returns an arrayref of paths of all shared maps that have
		2224	instantiated unique items. May block.
		2225
		2226	=cut
		2227
		2228	sub unique_maps() {
		2229	[
		2230	map {
		2231	utf8::decode $_;
		2232	/\.map$/
		2233	? normalise $_
		2234	: ()
		2235	} @{ aio_readdir $UNIQUEDIR or [] }
		2236	]
1419	}	2237	}
1420		2238
1421	package cf;	2239	package cf;
1422		2240
1423	=back	2241	=back
1424		2242
		2243	=head3 cf::object
		2244
		2245	=cut
		2246
		2247	package cf::object;
		2248
		2249	=over 4
		2250
		2251	=item $ob->inv_recursive
		2252
		2253	Returns the inventory of the object _and_ their inventories, recursively.
		2254
		2255	=cut
		2256
		2257	sub inv_recursive_;
		2258	sub inv_recursive_ {
		2259	map { $_, inv_recursive_ $_->inv } @_
		2260	}
		2261
		2262	sub inv_recursive {
		2263	inv_recursive_ inv $_[0]
		2264	}
		2265
		2266	=item $ref = $ob->ref
		2267
		2268	creates and returns a persistent reference to an objetc that can be stored as a string.
		2269
		2270	=item $ob = cf::object::deref ($refstring)
		2271
		2272	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2273	even if the object actually exists. May block.
		2274
		2275	=cut
		2276
		2277	sub deref {
		2278	my ($ref) = @_;
		2279
		2280	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2281	my ($uuid, $name) = ($1, $2);
		2282	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2283	or return;
		2284	$pl->ob->uuid eq $uuid
		2285	or return;
		2286
		2287	$pl->ob
		2288	} else {
		2289	warn "$ref: cannot resolve object reference\n";
		2290	undef
		2291	}
		2292	}
		2293
		2294	package cf;
		2295
		2296	=back
1425		2297
1426	=head3 cf::object::player	2298	=head3 cf::object::player
1427		2299
1428	=over 4	2300	=over 4
1429		2301
…		…
1443		2315
1444	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2316	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1445		2317
1446	if ($self->{record_replies}) {	2318	if ($self->{record_replies}) {
1447	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2319	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2320
1448	} else {	2321	} else {
		2322	my $pl = $self->contr;
		2323
		2324	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2325	my $dialog = $pl->{npc_dialog};
		2326	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2327
		2328	} else {
1449	$msg = $npc->name . " says: $msg" if $npc;	2329	$msg = $npc->name . " says: $msg" if $npc;
1450	$self->message ($msg, $flags);	2330	$self->message ($msg, $flags);
		2331	}
1451	}	2332	}
		2333	}
		2334
		2335	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2336
		2337	=cut
		2338
		2339	sub cf::object::send_msg {
		2340	my $pl = shift->contr
		2341	or return;
		2342	$pl->send_msg (@_);
1452	}	2343	}
1453		2344
1454	=item $player_object->may ("access")	2345	=item $player_object->may ("access")
1455		2346
1456	Returns wether the given player is authorized to access resource "access"	2347	Returns wether the given player is authorized to access resource "access"
…		…
1469		2360
1470	=item $player_object->enter_link	2361	=item $player_object->enter_link
1471		2362
1472	Freezes the player and moves him/her to a special map (C<{link}>).	2363	Freezes the player and moves him/her to a special map (C<{link}>).
1473		2364
1474	The player should be reaosnably safe there for short amounts of time. You	2365	The player should be reasonably safe there for short amounts of time. You
1475	I<MUST> call C<leave_link> as soon as possible, though.	2366	I<MUST> call C<leave_link> as soon as possible, though.
1476		2367
		2368	Will never block.
		2369
1477	=item $player_object->leave_link ($map, $x, $y)	2370	=item $player_object->leave_link ($map, $x, $y)
1478		2371
1479	Moves the player out of the specila link map onto the given map. If the	2372	Moves the player out of the special C<{link}> map onto the specified
1480	map is not valid (or omitted), the player will be moved back to the	2373	map. If the map is not valid (or omitted), the player will be moved back
1481	location he/she was before the call to C<enter_link>, or, if that fails,	2374	to the location he/she was before the call to C<enter_link>, or, if that
1482	to the emergency map position.	2375	fails, to the emergency map position.
1483		2376
1484	Might block.	2377	Might block.
1485		2378
1486	=cut	2379	=cut
		2380
		2381	sub link_map {
		2382	unless ($LINK_MAP) {
		2383	$LINK_MAP = cf::map::find "{link}"
		2384	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2385	$LINK_MAP->load;
		2386	}
		2387
		2388	$LINK_MAP
		2389	}
1487		2390
1488	sub cf::object::player::enter_link {	2391	sub cf::object::player::enter_link {
1489	my ($self) = @_;	2392	my ($self) = @_;
1490		2393
1491	$self->deactivate_recursive;	2394	$self->deactivate_recursive;
1492		2395
1493	return if $self->map == $LINK_MAP;	2396	return if UNIVERSAL::isa $self->map, "ext::map_link";
1494		2397
1495	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2398	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1496	if $self->map;	2399	if $self->map && $self->map->{path} ne "{link}";
1497		2400
1498	$self->enter_map ($LINK_MAP, 20, 20);	2401	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1499	}	2402	}
1500		2403
1501	sub cf::object::player::leave_link {	2404	sub cf::object::player::leave_link {
1502	my ($self, $map, $x, $y) = @_;	2405	my ($self, $map, $x, $y) = @_;
		2406
		2407	return unless $self->contr->active;
1503		2408
1504	my $link_pos = delete $self->{_link_pos};	2409	my $link_pos = delete $self->{_link_pos};
1505		2410
1506	unless ($map) {	2411	unless ($map) {
1507	# restore original map position	2412	# restore original map position
…		…
1521	# use -1 or undef as default coordinates, not 0, 0	2426	# use -1 or undef as default coordinates, not 0, 0
1522	($x, $y) = ($map->enter_x, $map->enter_y)	2427	($x, $y) = ($map->enter_x, $map->enter_y)
1523	if $x <=0 && $y <= 0;	2428	if $x <=0 && $y <= 0;
1524		2429
1525	$map->load;	2430	$map->load;
		2431	$map->load_neighbours;
1526		2432
		2433	return unless $self->contr->active;
1527	$self->activate_recursive;	2434	$self->activate_recursive;
		2435
		2436	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1528	$self->enter_map ($map, $x, $y);	2437	$self->enter_map ($map, $x, $y);
1529	}	2438	}
1530		2439
1531	cf::player->attach (	2440	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1532	on_logout => sub {
1533	my ($pl) = @_;
1534		2441
1535	# abort map switching before logout	2442	Moves the player to the given map-path and coordinates by first freezing
1536	if ($pl->ob->{_link_pos}) {	2443	her, loading and preparing them map, calling the provided $check callback
1537	cf::sync_job {	2444	that has to return the map if sucecssful, and then unfreezes the player on
1538	$pl->ob->leave_link	2445	the new (success) or old (failed) map position. In either case, $done will
1539	};	2446	be called at the end of this process.
1540	}
1541	},
1542	on_login => sub {
1543	my ($pl) = @_;
1544		2447
1545	# try to abort aborted map switching on player login :)
1546	# should happen only on crashes
1547	if ($pl->ob->{_link_pos}) {
1548
1549	$pl->ob->enter_link;
1550	(Coro::async_pool {
1551	# we need this sleep as the login has a concurrent enter_exit running
1552	# and this sleep increases chances of the player not ending up in scorn
1553	Coro::Timer::sleep 1;
1554	$pl->ob->leave_link;
1555	})->prio (2);
1556	}
1557	},
1558	);
1559
1560	=item $player_object->goto ($path, $x, $y)
1561
1562	=cut	2448	=cut
		2449
		2450	our $GOTOGEN;
1563		2451
1564	sub cf::object::player::goto {	2452	sub cf::object::player::goto {
1565	my ($self, $path, $x, $y) = @_;	2453	my ($self, $path, $x, $y, $check, $done) = @_;
		2454
		2455	# do generation counting so two concurrent goto's will be executed in-order
		2456	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1566		2457
1567	$self->enter_link;	2458	$self->enter_link;
1568		2459
1569	(Coro::async_pool {	2460	(async {
1570	$path = new cf::path $path;	2461	$Coro::current->{desc} = "player::goto $path $x $y";
1571		2462
1572	my $map = cf::map::find $path->as_string;	2463	# *tag paths override both path and x|y
		2464	if ($path =~ /^\*(.*)$/) {
		2465	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2466	my $ob = $obs[rand @obs];
		2467
		2468	# see if we actually can go there
		2469	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2470	$ob = $obs[rand @obs];
		2471	} else {
		2472	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2473	}
		2474	# else put us there anyways for now #d#
		2475
		2476	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2477	} else {
		2478	($path, $x, $y) = (undef, undef, undef);
		2479	}
		2480	}
		2481
		2482	my $map = eval {
		2483	my $map = defined $path ? cf::map::find $path : undef;
		2484
		2485	if ($map) {
1573	$map = $map->customise_for ($self) if $map;	2486	$map = $map->customise_for ($self);
1574		2487	$map = $check->($map) if $check && $map;
1575	# warn "entering ", $map->path, " at ($x, $y)\n"	2488	} else {
1576	# if $map;
1577
1578	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2489	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2490	}
1579		2491
		2492	$map
		2493	};
		2494
		2495	if ($@) {
		2496	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2497	LOG llevError | logBacktrace, Carp::longmess $@;
		2498	}
		2499
		2500	if ($gen == $self->{_goto_generation}) {
		2501	delete $self->{_goto_generation};
1580	$self->leave_link ($map, $x, $y);	2502	$self->leave_link ($map, $x, $y);
		2503	}
		2504
		2505	$done->() if $done;
1581	})->prio (1);	2506	})->prio (1);
1582	}	2507	}
1583		2508
1584	=item $player_object->enter_exit ($exit_object)	2509	=item $player_object->enter_exit ($exit_object)
1585		2510
…		…
1587		2512
1588	sub parse_random_map_params {	2513	sub parse_random_map_params {
1589	my ($spec) = @_;	2514	my ($spec) = @_;
1590		2515
1591	my $rmp = { # defaults	2516	my $rmp = { # defaults
1592	xsize => 10,	2517	xsize => (cf::rndm 15, 40),
1593	ysize => 10,	2518	ysize => (cf::rndm 15, 40),
		2519	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2520	#layout => string,
1594	};	2521	};
1595		2522
1596	for (split /\n/, $spec) {	2523	for (split /\n/, $spec) {
1597	my ($k, $v) = split /\s+/, $_, 2;	2524	my ($k, $v) = split /\s+/, $_, 2;
1598		2525
…		…
1602	$rmp	2529	$rmp
1603	}	2530	}
1604		2531
1605	sub prepare_random_map {	2532	sub prepare_random_map {
1606	my ($exit) = @_;	2533	my ($exit) = @_;
		2534
		2535	my $guard = cf::lock_acquire "exit_prepare:$exit";
1607		2536
1608	# all this does is basically replace the /! path by	2537	# all this does is basically replace the /! path by
1609	# a new random map path (?random/...) with a seed	2538	# a new random map path (?random/...) with a seed
1610	# that depends on the exit object	2539	# that depends on the exit object
1611		2540
1612	my $rmp = parse_random_map_params $exit->msg;	2541	my $rmp = parse_random_map_params $exit->msg;
1613		2542
1614	if ($exit->map) {	2543	if ($exit->map) {
1615	$rmp->{region} = $exit->map->region_name;	2544	$rmp->{region} = $exit->region->name;
1616	$rmp->{origin_map} = $exit->map->path;	2545	$rmp->{origin_map} = $exit->map->path;
1617	$rmp->{origin_x} = $exit->x;	2546	$rmp->{origin_x} = $exit->x;
1618	$rmp->{origin_y} = $exit->y;	2547	$rmp->{origin_y} = $exit->y;
1619	}	2548	}
1620		2549
1621	$rmp->{random_seed} ||= $exit->random_seed;	2550	$rmp->{random_seed} ||= $exit->random_seed;
1622		2551
1623	my $data = cf::to_json $rmp;	2552	my $data = cf::to_json $rmp;
1624	my $md5 = Digest::MD5::md5_hex $data;	2553	my $md5 = Digest::MD5::md5_hex $data;
		2554	my $meta = "$RANDOMDIR/$md5.meta";
1625		2555
1626	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2556	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1627	aio_write $fh, 0, (length $data), $data, 0;	2557	aio_write $fh, 0, (length $data), $data, 0;
		2558	undef $fh;
		2559	aio_rename "$meta~", $meta;
1628		2560
1629	$exit->slaying ("?random/$md5");	2561	$exit->slaying ("?random/$md5");
1630	$exit->msg (undef);	2562	$exit->msg (undef);
1631	}	2563	}
1632	}	2564	}
…		…
1634	sub cf::object::player::enter_exit {	2566	sub cf::object::player::enter_exit {
1635	my ($self, $exit) = @_;	2567	my ($self, $exit) = @_;
1636		2568
1637	return unless $self->type == cf::PLAYER;	2569	return unless $self->type == cf::PLAYER;
1638		2570
		2571	if ($exit->slaying eq "/!") {
		2572	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2573	# the problem is that $exit might not survive long enough
		2574	# so it needs to be done right now, right here
		2575	cf::sync_job { prepare_random_map $exit };
		2576	}
		2577
		2578	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2579	my $hp = $exit->stats->hp;
		2580	my $sp = $exit->stats->sp;
		2581
1639	$self->enter_link;	2582	$self->enter_link;
1640		2583
1641	(Coro::async_pool {	2584	# if exit is damned, update players death & WoR home-position
		2585	$self->contr->savebed ($slaying, $hp, $sp)
		2586	if $exit->flag (FLAG_DAMNED);
		2587
		2588	(async {
		2589	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2590
1642	$self->deactivate_recursive; # just to be sure	2591	$self->deactivate_recursive; # just to be sure
1643	unless (eval {	2592	unless (eval {
1644	prepare_random_map $exit	2593	$self->goto ($slaying, $hp, $sp);
1645	if $exit->slaying eq "/!";
1646
1647	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1648	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1649		2594
1650	1;	2595	1;
1651	}) {	2596	}) {
1652	$self->message ("Something went wrong deep within the crossfire server. "	2597	$self->message ("Something went wrong deep within the crossfire server. "
1653	. "I'll try to bring you back to the map you were before. "	2598	. "I'll try to bring you back to the map you were before. "
1654	. "Please report this to the dungeon master",	2599	. "Please report this to the dungeon master!",
1655	cf::NDI_UNIQUE | cf::NDI_RED);	2600	cf::NDI_UNIQUE | cf::NDI_RED);
1656		2601
1657	warn "ERROR in enter_exit: $@";	2602	warn "ERROR in enter_exit: $@";
1658	$self->leave_link;	2603	$self->leave_link;
1659	}	2604	}
1660	})->prio (1);	2605	})->prio (1);
…		…
1673		2618
1674	sub cf::client::send_drawinfo {	2619	sub cf::client::send_drawinfo {
1675	my ($self, $text, $flags) = @_;	2620	my ($self, $text, $flags) = @_;
1676		2621
1677	utf8::encode $text;	2622	utf8::encode $text;
1678	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2623	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1679	}	2624	}
1680		2625
		2626	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2627
		2628	Send a drawinfo or msg packet to the client, formatting the msg for the
		2629	client if neccessary. C<$type> should be a string identifying the type of
		2630	the message, with C<log> being the default. If C<$color> is negative, suppress
		2631	the message unless the client supports the msg packet.
		2632
		2633	=cut
		2634
		2635	our %CHANNEL = (
		2636	"c/identify" => {
		2637	id => "infobox",
		2638	title => "Identify",
		2639	reply => undef,
		2640	tooltip => "Items recently identified",
		2641	},
		2642	"c/examine" => {
		2643	id => "infobox",
		2644	title => "Examine",
		2645	reply => undef,
		2646	tooltip => "Signs and other items you examined",
		2647	},
		2648	"c/lookat" => {
		2649	id => "infobox",
		2650	title => "Look",
		2651	reply => undef,
		2652	tooltip => "What you saw there",
		2653	},
		2654	);
		2655
		2656	sub cf::client::send_msg {
		2657	my ($self, $channel, $msg, $color, @extra) = @_;
		2658
		2659	$msg = $self->pl->expand_cfpod ($msg);
		2660
		2661	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2662
		2663	# check predefined channels, for the benefit of C
		2664	if ($CHANNEL{$channel}) {
		2665	$channel = $CHANNEL{$channel};
		2666
		2667	$self->ext_msg (channel_info => $channel)
		2668	if $self->can_msg;
		2669
		2670	$channel = $channel->{id};
		2671
		2672	} elsif (ref $channel) {
		2673	# send meta info to client, if not yet sent
		2674	unless (exists $self->{channel}{$channel->{id}}) {
		2675	$self->{channel}{$channel->{id}} = $channel;
		2676	$self->ext_msg (channel_info => $channel)
		2677	if $self->can_msg;
		2678	}
		2679
		2680	$channel = $channel->{id};
		2681	}
		2682
		2683	return unless @extra || length $msg;
		2684
		2685	if ($self->can_msg) {
		2686	# default colour, mask it out
		2687	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2688	if $color & cf::NDI_DEF;
		2689
		2690	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2691	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2692	} else {
		2693	if ($color >= 0) {
		2694	# replace some tags by gcfclient-compatible ones
		2695	for ($msg) {
		2696	1 while
		2697	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2698	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2699	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2700	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2701	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2702	}
		2703
		2704	$color &= cf::NDI_COLOR_MASK;
		2705
		2706	utf8::encode $msg;
		2707
		2708	if (0 && $msg =~ /\[/) {
		2709	# COMMAND/INFO
		2710	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2711	} else {
		2712	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2713	$self->send_packet ("drawinfo $color $msg")
		2714	}
		2715	}
		2716	}
		2717	}
		2718
		2719	=item $client->ext_msg ($type, @msg)
		2720
		2721	Sends an ext event to the client.
		2722
		2723	=cut
		2724
		2725	sub cf::client::ext_msg($$@) {
		2726	my ($self, $type, @msg) = @_;
		2727
		2728	if ($self->extcmd == 2) {
		2729	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2730	} elsif ($self->extcmd == 1) { # TODO: remove
		2731	push @msg, msgtype => "event_$type";
		2732	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2733	}
		2734	}
		2735
		2736	=item $client->ext_reply ($msgid, @msg)
		2737
		2738	Sends an ext reply to the client.
		2739
		2740	=cut
		2741
		2742	sub cf::client::ext_reply($$@) {
		2743	my ($self, $id, @msg) = @_;
		2744
		2745	if ($self->extcmd == 2) {
		2746	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2747	} elsif ($self->extcmd == 1) {
		2748	#TODO: version 1, remove
		2749	unshift @msg, msgtype => "reply", msgid => $id;
		2750	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2751	}
		2752	}
1681		2753
1682	=item $success = $client->query ($flags, "text", \&cb)	2754	=item $success = $client->query ($flags, "text", \&cb)
1683		2755
1684	Queues a query to the client, calling the given callback with	2756	Queues a query to the client, calling the given callback with
1685	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2757	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1686	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2758	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1687		2759
1688	Queries can fail, so check the return code. Or don't, as queries will become	2760	Queries can fail, so check the return code. Or don't, as queries will
1689	reliable at some point in the future.	2761	become reliable at some point in the future.
1690		2762
1691	=cut	2763	=cut
1692		2764
1693	sub cf::client::query {	2765	sub cf::client::query {
1694	my ($self, $flags, $text, $cb) = @_;	2766	my ($self, $flags, $text, $cb) = @_;
…		…
1702	utf8::encode $text;	2774	utf8::encode $text;
1703	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2775	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1704		2776
1705	$self->send_packet ($self->{query_queue}[0][0])	2777	$self->send_packet ($self->{query_queue}[0][0])
1706	if @{ $self->{query_queue} } == 1;	2778	if @{ $self->{query_queue} } == 1;
		2779
		2780	1
1707	}	2781	}
1708		2782
1709	cf::client->attach (	2783	cf::client->attach (
		2784	on_connect => sub {
		2785	my ($ns) = @_;
		2786
		2787	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2788	},
1710	on_reply => sub {	2789	on_reply => sub {
1711	my ($ns, $msg) = @_;	2790	my ($ns, $msg) = @_;
1712		2791
1713	# this weird shuffling is so that direct followup queries	2792	# this weird shuffling is so that direct followup queries
1714	# get handled first	2793	# get handled first
1715	my $queue = delete $ns->{query_queue}	2794	my $queue = delete $ns->{query_queue}
1716	or return; # be conservative, not sure how that can happen, but we saw a crash here	2795	or return; # be conservative, not sure how that can happen, but we saw a crash here
1717		2796
1718	(shift @$queue)->[1]->($msg);	2797	(shift @$queue)->[1]->($msg);
		2798	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1719		2799
1720	push @{ $ns->{query_queue} }, @$queue;	2800	push @{ $ns->{query_queue} }, @$queue;
1721		2801
1722	if (@{ $ns->{query_queue} } == @$queue) {	2802	if (@{ $ns->{query_queue} } == @$queue) {
1723	if (@$queue) {	2803	if (@$queue) {
…		…
1725	} else {	2805	} else {
1726	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2806	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1727	}	2807	}
1728	}	2808	}
1729	},	2809	},
		2810	on_exticmd => sub {
		2811	my ($ns, $buf) = @_;
		2812
		2813	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2814
		2815	if (ref $msg) {
		2816	my ($type, $reply, @payload) =
		2817	"ARRAY" eq ref $msg
		2818	? @$msg
		2819	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2820
		2821	my @reply;
		2822
		2823	if (my $cb = $EXTICMD{$type}) {
		2824	@reply = $cb->($ns, @payload);
		2825	}
		2826
		2827	$ns->ext_reply ($reply, @reply)
		2828	if $reply;
		2829
		2830	} else {
		2831	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2832	}
		2833
		2834	cf::override;
		2835	},
1730	);	2836	);
1731		2837
1732	=item $client->coro (\&cb)	2838	=item $client->async (\&cb)
1733		2839
1734	Create a new coroutine, running the specified callback. The coroutine will	2840	Create a new coroutine, running the specified callback. The coroutine will
1735	be automatically cancelled when the client gets destroyed (e.g. on logout,	2841	be automatically cancelled when the client gets destroyed (e.g. on logout,
1736	or loss of connection).	2842	or loss of connection).
1737		2843
1738	=cut	2844	=cut
1739		2845
1740	sub cf::client::coro {	2846	sub cf::client::async {
1741	my ($self, $cb) = @_;	2847	my ($self, $cb) = @_;
1742		2848
1743	my $coro = &Coro::async_pool ($cb);	2849	my $coro = &Coro::async ($cb);
1744		2850
1745	$coro->on_destroy (sub {	2851	$coro->on_destroy (sub {
1746	delete $self->{_coro}{$coro+0};	2852	delete $self->{_coro}{$coro+0};
1747	});	2853	});
1748		2854
…		…
1775	our $safe = new Safe "safe";	2881	our $safe = new Safe "safe";
1776	our $safe_hole = new Safe::Hole;	2882	our $safe_hole = new Safe::Hole;
1777		2883
1778	$SIG{FPE} = 'IGNORE';	2884	$SIG{FPE} = 'IGNORE';
1779		2885
1780	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2886	$safe->permit_only (Opcode::opset qw(
		2887	:base_core :base_mem :base_orig :base_math
		2888	grepstart grepwhile mapstart mapwhile
		2889	sort time
		2890	));
1781		2891
1782	# here we export the classes and methods available to script code	2892	# here we export the classes and methods available to script code
1783		2893
1784	=pod	2894	=pod
1785		2895
1786	The following fucntions and emthods are available within a safe environment:	2896	The following functions and methods are available within a safe environment:
1787		2897
1788	cf::object contr pay_amount pay_player map	2898	cf::object
		2899	contr pay_amount pay_player map x y force_find force_add
		2900	insert remove name archname title slaying race decrease_ob_nr
		2901
1789	cf::object::player player	2902	cf::object::player
1790	cf::player peaceful	2903	player
1791	cf::map trigger	2904
		2905	cf::player
		2906	peaceful
		2907
		2908	cf::map
		2909	trigger
1792		2910
1793	=cut	2911	=cut
1794		2912
1795	for (	2913	for (
1796	["cf::object" => qw(contr pay_amount pay_player map)],	2914	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2915	insert remove inv name archname title slaying race
		2916	decrease_ob_nr)],
1797	["cf::object::player" => qw(player)],	2917	["cf::object::player" => qw(player)],
1798	["cf::player" => qw(peaceful)],	2918	["cf::player" => qw(peaceful)],
1799	["cf::map" => qw(trigger)],	2919	["cf::map" => qw(trigger)],
1800	) {	2920	) {
1801	no strict 'refs';	2921	no strict 'refs';
…		…
1872	=back	2992	=back
1873		2993
1874	=cut	2994	=cut
1875		2995
1876	#############################################################################	2996	#############################################################################
		2997	# the server's init and main functions
1877		2998
1878	=head2 EXTENSION DATABASE SUPPORT	2999	sub load_facedata($) {
		3000	my ($path) = @_;
1879		3001
1880	Crossfire maintains a very simple database for extension use. It can	3002	# HACK to clear player env face cache, we need some signal framework
1881	currently store anything that can be serialised using Storable, which	3003	# for this (global event?)
1882	excludes objects.	3004	%ext::player_env::MUSIC_FACE_CACHE = ();
1883		3005
1884	The parameter C<$family> should best start with the name of the extension	3006	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1885	using it, it should be unique.
1886		3007
1887	=over 4	3008	warn "loading facedata from $path\n";
1888		3009
1889	=item $hashref = cf::db_get $family	3010	my $facedata;
		3011	0 < aio_load $path, $facedata
		3012	or die "$path: $!";
1890		3013
1891	Return a hashref for use by the extension C<$family>, which can be	3014	$facedata = Coro::Storable::thaw $facedata;
1892	modified. After modifications, you have to call C<cf::db_dirty> or
1893	C<cf::db_sync>.
1894		3015
1895	=item $value = cf::db_get $family => $key	3016	$facedata->{version} == 2
		3017	or cf::cleanup "$path: version mismatch, cannot proceed.";
1896		3018
1897	Returns a single value from the database	3019	# patch in the exptable
1898		3020	$facedata->{resource}{"res/exp_table"} = {
1899	=item cf::db_put $family => $hashref	3021	type => FT_RSRC,
1900		3022	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1901	Stores the given family hashref into the database. Updates are delayed, if
1902	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1903
1904	=item cf::db_put $family => $key => $value
1905
1906	Stores the given C<$value> in the family hash. Updates are delayed, if you
1907	want the data to be synced to disk immediately, use C<cf::db_sync>.
1908
1909	=item cf::db_dirty
1910
1911	Marks the database as dirty, to be updated at a later time.
1912
1913	=item cf::db_sync
1914
1915	Immediately write the database to disk I<if it is dirty>.
1916
1917	=cut
1918
1919	our $DB;
1920
1921	{
1922	my $path = cf::localdir . "/database.pst";
1923
1924	sub db_load() {
1925	$DB = stat $path ? Storable::retrieve $path : { };
1926	}
1927
1928	my $pid;
1929
1930	sub db_save() {
1931	waitpid $pid, 0 if $pid;
1932	if (0 == ($pid = fork)) {
1933	$DB->{_meta}{version} = 1;
1934	Storable::nstore $DB, "$path~";
1935	rename "$path~", $path;
1936	cf::_exit 0 if defined $pid;
1937	}
1938	}
1939
1940	my $dirty;
1941
1942	sub db_sync() {
1943	db_save if $dirty;
1944	undef $dirty;
1945	}
1946
1947	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1948	db_sync;
1949	});	3023	};
		3024	cf::cede_to_tick;
1950		3025
1951	sub db_dirty() {
1952	$dirty = 1;
1953	$idle->start;
1954	}	3026	{
		3027	my $faces = $facedata->{faceinfo};
1955		3028
1956	sub db_get($;$) {	3029	while (my ($face, $info) = each %$faces) {
1957	@_ >= 2	3030	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1958	? $DB->{$_[0]}{$_[1]}	3031	cf::face::set_visibility $idx, $info->{visibility};
1959	: ($DB->{$_[0]} ||= { })	3032	cf::face::set_magicmap $idx, $info->{magicmap};
1960	}	3033	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3034	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1961		3035
1962	sub db_put($$;$) {	3036	cf::cede_to_tick;
1963	if (@_ >= 3) {
1964	$DB->{$_[0]}{$_[1]} = $_[2];
1965	} else {
1966	$DB->{$_[0]} = $_[1];
1967	}
1968	db_dirty;
1969	}
1970
1971	cf::global->attach (
1972	prio => 10000,
1973	on_cleanup => sub {
1974	db_sync;
1975	},	3037	}
1976	);
1977	}
1978		3038
1979	#############################################################################	3039	while (my ($face, $info) = each %$faces) {
1980	# the server's main()	3040	next unless $info->{smooth};
		3041	my $idx = cf::face::find $face
		3042	or next;
		3043	if (my $smooth = cf::face::find $info->{smooth}) {
		3044	cf::face::set_smooth $idx, $smooth;
		3045	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3046	} else {
		3047	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3048	}
1981		3049
1982	sub cfg_load {	3050	cf::cede_to_tick;
		3051	}
		3052	}
		3053
		3054	{
		3055	my $anims = $facedata->{animinfo};
		3056
		3057	while (my ($anim, $info) = each %$anims) {
		3058	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3059	cf::cede_to_tick;
		3060	}
		3061
		3062	cf::anim::invalidate_all; # d'oh
		3063	}
		3064
		3065	{
		3066	# TODO: for gcfclient pleasure, we should give resources
		3067	# that gcfclient doesn't grok a >10000 face index.
		3068	my $res = $facedata->{resource};
		3069
		3070	my $soundconf = delete $res->{"res/sound.conf"};
		3071
		3072	while (my ($name, $info) = each %$res) {
		3073	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3074	my $data;
		3075
		3076	if ($info->{type} & 1) {
		3077	# prepend meta info
		3078
		3079	my $meta = $enc->encode ({
		3080	name => $name,
		3081	%{ $info->{meta} || {} },
		3082	});
		3083
		3084	$data = pack "(w/a*)*", $meta, $info->{data};
		3085	} else {
		3086	$data = $info->{data};
		3087	}
		3088
		3089	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3090	cf::face::set_type $idx, $info->{type};
		3091
		3092	cf::cede_to_tick;
		3093	}
		3094
		3095	if ($soundconf) {
		3096	$soundconf = $enc->decode (delete $soundconf->{data});
		3097
		3098	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3099	my $sound = $soundconf->{compat}[$_]
		3100	or next;
		3101
		3102	my $face = cf::face::find "sound/$sound->[1]";
		3103	cf::sound::set $sound->[0] => $face;
		3104	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3105	}
		3106
		3107	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3108	my $face = cf::face::find "sound/$v";
		3109	cf::sound::set $k => $face;
		3110	}
		3111	}
		3112	}
		3113
		3114	1
		3115	}
		3116
		3117	register_exticmd fx_want => sub {
		3118	my ($ns, $want) = @_;
		3119
		3120	while (my ($k, $v) = each %$want) {
		3121	$ns->fx_want ($k, $v);
		3122	}
		3123	};
		3124
		3125	sub reload_regions {
		3126	# HACK to clear player env face cache, we need some signal framework
		3127	# for this (global event?)
		3128	%ext::player_env::MUSIC_FACE_CACHE = ();
		3129
		3130	load_resource_file "$MAPDIR/regions"
		3131	or die "unable to load regions file\n";
		3132
		3133	for (cf::region::list) {
		3134	$_->{match} = qr/$_->{match}/
		3135	if exists $_->{match};
		3136	}
		3137	}
		3138
		3139	sub reload_facedata {
		3140	load_facedata "$DATADIR/facedata"
		3141	or die "unable to load facedata\n";
		3142	}
		3143
		3144	sub reload_archetypes {
		3145	load_resource_file "$DATADIR/archetypes"
		3146	or die "unable to load archetypes\n";
		3147	#d# NEED to laod twice to resolve forward references
		3148	# this really needs to be done in an extra post-pass
		3149	# (which needs to be synchronous, so solve it differently)
		3150	load_resource_file "$DATADIR/archetypes"
		3151	or die "unable to load archetypes\n";
		3152	}
		3153
		3154	sub reload_treasures {
		3155	load_resource_file "$DATADIR/treasures"
		3156	or die "unable to load treasurelists\n";
		3157	}
		3158
		3159	sub reload_resources {
		3160	warn "reloading resource files...\n";
		3161
		3162	reload_regions;
		3163	reload_facedata;
		3164	#reload_archetypes;#d#
		3165	reload_archetypes;
		3166	reload_treasures;
		3167
		3168	warn "finished reloading resource files\n";
		3169	}
		3170
		3171	sub init {
		3172	reload_resources;
		3173	}
		3174
		3175	sub reload_config {
1983	open my $fh, "<:utf8", cf::confdir . "/config"	3176	open my $fh, "<:utf8", "$CONFDIR/config"
1984	or return;	3177	or return;
1985		3178
1986	local $/;	3179	local $/;
1987	*CFG = YAML::Syck::Load <$fh>;	3180	*CFG = YAML::Syck::Load <$fh>;
1988		3181
…		…
1991	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3184	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
1992	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3185	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
1993		3186
1994	if (exists $CFG{mlockall}) {	3187	if (exists $CFG{mlockall}) {
1995	eval {	3188	eval {
1996	$CFG{mlockall} ? &mlockall : &munlockall	3189	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1997	and die "WARNING: m(un)lockall failed: $!\n";	3190	and die "WARNING: m(un)lockall failed: $!\n";
1998	};	3191	};
1999	warn $@ if $@;	3192	warn $@ if $@;
2000	}	3193	}
2001	}	3194	}
2002		3195
2003	sub main {	3196	sub main {
2004	# we must not ever block the main coroutine	3197	# we must not ever block the main coroutine
2005	local $Coro::idle = sub {	3198	local $Coro::idle = sub {
2006	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3199	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2007	Coro::async_pool { Event::one_event };	3200	(async {
		3201	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3202	Event::one_event;
		3203	})->prio (Coro::PRIO_MAX);
2008	};	3204	};
2009		3205
2010	cfg_load;	3206	reload_config;
2011	db_load;	3207	db_init;
2012	load_extensions;	3208	load_extensions;
		3209
		3210	$TICK_WATCHER->start;
2013	Event::loop;	3211	Event::loop;
2014	}	3212	}
2015		3213
2016	#############################################################################	3214	#############################################################################
2017	# initialisation	3215	# initialisation and cleanup
2018		3216
		3217	# install some emergency cleanup handlers
		3218	BEGIN {
		3219	for my $signal (qw(INT HUP TERM)) {
		3220	Event->signal (
		3221	reentrant => 0,
		3222	data => WF_AUTOCANCEL,
		3223	signal => $signal,
		3224	prio => 0,
		3225	cb => sub {
		3226	cf::cleanup "SIG$signal";
		3227	},
		3228	);
		3229	}
		3230	}
		3231
		3232	sub write_runtime {
		3233	my $runtime = "$LOCALDIR/runtime";
		3234
		3235	# first touch the runtime file to show we are still running:
		3236	# the fsync below can take a very very long time.
		3237
		3238	IO::AIO::aio_utime $runtime, undef, undef;
		3239
		3240	my $guard = cf::lock_acquire "write_runtime";
		3241
		3242	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3243	or return;
		3244
		3245	my $value = $cf::RUNTIME + 90 + 10;
		3246	# 10 is the runtime save interval, for a monotonic clock
		3247	# 60 allows for the watchdog to kill the server.
		3248
		3249	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3250	and return;
		3251
		3252	# always fsync - this file is important
		3253	aio_fsync $fh
		3254	and return;
		3255
		3256	# touch it again to show we are up-to-date
		3257	aio_utime $fh, undef, undef;
		3258
		3259	close $fh
		3260	or return;
		3261
		3262	aio_rename "$runtime~", $runtime
		3263	and return;
		3264
		3265	warn "runtime file written.\n";
		3266
		3267	1
		3268	}
		3269
		3270	sub emergency_save() {
		3271	my $freeze_guard = cf::freeze_mainloop;
		3272
		3273	warn "enter emergency perl save\n";
		3274
		3275	cf::sync_job {
		3276	# use a peculiar iteration method to avoid tripping on perl
		3277	# refcount bugs in for. also avoids problems with players
		3278	# and maps saved/destroyed asynchronously.
		3279	warn "begin emergency player save\n";
		3280	for my $login (keys %cf::PLAYER) {
		3281	my $pl = $cf::PLAYER{$login} or next;
		3282	$pl->valid or next;
		3283	$pl->save;
		3284	}
		3285	warn "end emergency player save\n";
		3286
		3287	warn "begin emergency map save\n";
		3288	for my $path (keys %cf::MAP) {
		3289	my $map = $cf::MAP{$path} or next;
		3290	$map->valid or next;
		3291	$map->save;
		3292	}
		3293	warn "end emergency map save\n";
		3294
		3295	warn "begin emergency database checkpoint\n";
		3296	BDB::db_env_txn_checkpoint $DB_ENV;
		3297	warn "end emergency database checkpoint\n";
		3298	};
		3299
		3300	warn "leave emergency perl save\n";
		3301	}
		3302
		3303	sub post_cleanup {
		3304	my ($make_core) = @_;
		3305
		3306	warn Carp::longmess "post_cleanup backtrace"
		3307	if $make_core;
		3308	}
		3309
2019	sub reload() {	3310	sub do_reload_perl() {
2020	# can/must only be called in main	3311	# can/must only be called in main
2021	if ($Coro::current != $Coro::main) {	3312	if ($Coro::current != $Coro::main) {
2022	warn "can only reload from main coroutine\n";	3313	warn "can only reload from main coroutine";
2023	return;	3314	return;
2024	}	3315	}
2025		3316
2026	warn "reloading...";	3317	warn "reloading...";
2027		3318
2028	my $guard = freeze_mainloop;	3319	warn "entering sync_job";
		3320
		3321	cf::sync_job {
		3322	cf::write_runtime; # external watchdog should not bark
2029	cf::emergency_save;	3323	cf::emergency_save;
		3324	cf::write_runtime; # external watchdog should not bark
2030		3325
2031	eval {	3326	warn "syncing database to disk";
		3327	BDB::db_env_txn_checkpoint $DB_ENV;
		3328
2032	# if anything goes wrong in here, we should simply crash as we already saved	3329	# if anything goes wrong in here, we should simply crash as we already saved
2033		3330
2034	# cancel all watchers	3331	warn "cancelling all WF_AUTOCANCEL watchers";
2035	for (Event::all_watchers) {	3332	for (Event::all_watchers) {
2036	$_->cancel if $_->data & WF_AUTOCANCEL;	3333	$_->cancel if $_->data & WF_AUTOCANCEL;
2037	}	3334	}
2038		3335
		3336	warn "flushing outstanding aio requests";
		3337	for (;;) {
		3338	BDB::flush;
		3339	IO::AIO::flush;
		3340	Coro::cede;
		3341	last unless IO::AIO::nreqs || BDB::nreqs;
		3342	warn "iterate...";
		3343	}
		3344
		3345	++$RELOAD;
		3346
2039	# cancel all extension coros	3347	warn "cancelling all extension coros";
2040	$_->cancel for values %EXT_CORO;	3348	$_->cancel for values %EXT_CORO;
2041	%EXT_CORO = ();	3349	%EXT_CORO = ();
2042		3350
2043	# unload all extensions	3351	warn "removing commands";
2044	for (@exts) {	3352	%COMMAND = ();
		3353
		3354	warn "removing ext/exti commands";
		3355	%EXTCMD = ();
		3356	%EXTICMD = ();
		3357
		3358	warn "unloading/nuking all extensions";
		3359	for my $pkg (@EXTS) {
2045	warn "unloading <$_>";	3360	warn "... unloading $pkg";
2046	unload_extension $_;	3361
		3362	if (my $cb = $pkg->can ("unload")) {
		3363	eval {
		3364	$cb->($pkg);
		3365	1
		3366	} or warn "$pkg unloaded, but with errors: $@";
2047	}	3367	}
2048		3368
		3369	warn "... nuking $pkg";
		3370	Symbol::delete_package $pkg;
		3371	}
		3372
2049	# unload all modules loaded from $LIBDIR	3373	warn "unloading all perl modules loaded from $LIBDIR";
2050	while (my ($k, $v) = each %INC) {	3374	while (my ($k, $v) = each %INC) {
2051	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3375	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2052		3376
2053	warn "removing <$k>";	3377	warn "... unloading $k";
2054	delete $INC{$k};	3378	delete $INC{$k};
2055		3379
2056	$k =~ s/\.pm$//;	3380	$k =~ s/\.pm$//;
2057	$k =~ s/\//::/g;	3381	$k =~ s/\//::/g;
2058		3382
…		…
2061	}	3385	}
2062		3386
2063	Symbol::delete_package $k;	3387	Symbol::delete_package $k;
2064	}	3388	}
2065		3389
2066	# sync database to disk
2067	cf::db_sync;
2068	IO::AIO::flush;
2069
2070	# get rid of safe::, as good as possible	3390	warn "getting rid of safe::, as good as possible";
2071	Symbol::delete_package "safe::$_"	3391	Symbol::delete_package "safe::$_"
2072	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3392	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2073		3393
2074	# remove register_script_function callbacks
2075	# TODO
2076
2077	# unload cf.pm "a bit"	3394	warn "unloading cf.pm \"a bit\"";
2078	delete $INC{"cf.pm"};	3395	delete $INC{"cf.pm"};
		3396	delete $INC{"cf/pod.pm"};
2079		3397
2080	# don't, removes xs symbols, too,	3398	# don't, removes xs symbols, too,
2081	# and global variables created in xs	3399	# and global variables created in xs
2082	#Symbol::delete_package __PACKAGE__;	3400	#Symbol::delete_package __PACKAGE__;
2083		3401
2084	# reload cf.pm	3402	warn "unload completed, starting to reload now";
		3403
2085	warn "reloading cf.pm";	3404	warn "reloading cf.pm";
2086	require cf;	3405	require cf;
2087	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3406	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2088		3407
2089	# load config and database again	3408	warn "loading config and database again";
2090	cf::cfg_load;	3409	cf::reload_config;
2091	cf::db_load;
2092		3410
2093	# load extensions
2094	warn "load extensions";	3411	warn "loading extensions";
2095	cf::load_extensions;	3412	cf::load_extensions;
2096		3413
2097	# reattach attachments to objects	3414	warn "reattaching attachments to objects/players";
2098	warn "reattach";	3415	_global_reattach; # objects, sockets
2099	_global_reattach;	3416	warn "reattaching attachments to maps";
2100	};	3417	reattach $_ for values %MAP;
		3418	warn "reattaching attachments to players";
		3419	reattach $_ for values %PLAYER;
2101		3420
2102	if ($@) {	3421	warn "leaving sync_job";
		3422
		3423	1
		3424	} or do {
2103	warn $@;	3425	warn $@;
2104	warn "error while reloading, exiting.";	3426	warn "error while reloading, exiting.";
2105	exit 1;	3427	exit 1;
2106	}	3428	};
2107		3429
2108	warn "reloaded successfully";	3430	warn "reloaded";
2109	};	3431	};
2110		3432
2111	#############################################################################	3433	our $RELOAD_WATCHER; # used only during reload
2112		3434
2113	unless ($LINK_MAP) {	3435	sub reload_perl() {
2114	$LINK_MAP = cf::map::new;	3436	# doing reload synchronously and two reloads happen back-to-back,
		3437	# coro crashes during coro_state_free->destroy here.
2115		3438
2116	$LINK_MAP->width (41);	3439	$RELOAD_WATCHER ||= Event->timer (
2117	$LINK_MAP->height (41);	3440	reentrant => 0,
2118	$LINK_MAP->alloc;
2119	$LINK_MAP->path ("{link}");
2120	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2121	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2122
2123	# dirty hack because... archetypes are not yet loaded
2124	Event->timer (
2125	after => 2,	3441	after => 0,
		3442	data => WF_AUTOCANCEL,
2126	cb => sub {	3443	cb => sub {
2127	$_[0]->w->cancel;	3444	do_reload_perl;
2128		3445	undef $RELOAD_WATCHER;
2129	# provide some exits "home"
2130	my $exit = cf::object::new "exit";
2131
2132	$exit->slaying ($EMERGENCY_POSITION->[0]);
2133	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2134	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2135
2136	$LINK_MAP->insert ($exit->clone, 19, 19);
2137	$LINK_MAP->insert ($exit->clone, 19, 20);
2138	$LINK_MAP->insert ($exit->clone, 19, 21);
2139	$LINK_MAP->insert ($exit->clone, 20, 19);
2140	$LINK_MAP->insert ($exit->clone, 20, 21);
2141	$LINK_MAP->insert ($exit->clone, 21, 19);
2142	$LINK_MAP->insert ($exit->clone, 21, 20);
2143	$LINK_MAP->insert ($exit->clone, 21, 21);
2144
2145	$exit->destroy;
2146	});	3446	},
2147		3447	);
2148	$LINK_MAP->{deny_save} = 1;
2149	$LINK_MAP->{deny_reset} = 1;
2150
2151	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2152	}	3448	}
2153
2154	register "<global>", __PACKAGE__;
2155		3449
2156	register_command "reload" => sub {	3450	register_command "reload" => sub {
2157	my ($who, $arg) = @_;	3451	my ($who, $arg) = @_;
2158		3452
2159	if ($who->flag (FLAG_WIZ)) {	3453	if ($who->flag (FLAG_WIZ)) {
2160	$who->message ("start of reload.");
2161	reload;
2162	$who->message ("end of reload.");	3454	$who->message ("reloading server.");
		3455	async {
		3456	$Coro::current->{desc} = "perl_reload";
		3457	reload_perl;
		3458	};
2163	}	3459	}
2164	};	3460	};
2165		3461
2166	unshift @INC, $LIBDIR;	3462	unshift @INC, $LIBDIR;
		3463
		3464	my $bug_warning = 0;
		3465
		3466	our @WAIT_FOR_TICK;
		3467	our @WAIT_FOR_TICK_BEGIN;
		3468
		3469	sub wait_for_tick {
		3470	return unless $TICK_WATCHER->is_active;
		3471	return if $Coro::current == $Coro::main;
		3472
		3473	my $signal = new Coro::Signal;
		3474	push @WAIT_FOR_TICK, $signal;
		3475	$signal->wait;
		3476	}
		3477
		3478	sub wait_for_tick_begin {
		3479	return unless $TICK_WATCHER->is_active;
		3480	return if $Coro::current == $Coro::main;
		3481
		3482	my $signal = new Coro::Signal;
		3483	push @WAIT_FOR_TICK_BEGIN, $signal;
		3484	$signal->wait;
		3485	}
2167		3486
2168	$TICK_WATCHER = Event->timer (	3487	$TICK_WATCHER = Event->timer (
2169	reentrant => 0,	3488	reentrant => 0,
		3489	parked => 1,
2170	prio => 0,	3490	prio => 0,
2171	at => $NEXT_TICK || $TICK,	3491	at => $NEXT_TICK || $TICK,
2172	data => WF_AUTOCANCEL,	3492	data => WF_AUTOCANCEL,
2173	cb => sub {	3493	cb => sub {
		3494	if ($Coro::current != $Coro::main) {
		3495	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3496	unless ++$bug_warning > 10;
		3497	return;
		3498	}
		3499
		3500	$NOW = $tick_start = Event::time;
		3501
2174	cf::server_tick; # one server iteration	3502	cf::server_tick; # one server iteration
		3503
2175	$RUNTIME += $TICK;	3504	$RUNTIME += $TICK;
2176	$NEXT_TICK += $TICK;	3505	$NEXT_TICK += $TICK;
2177		3506
		3507	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3508	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3509	Coro::async_pool {
		3510	$Coro::current->{desc} = "runtime saver";
		3511	write_runtime
		3512	or warn "ERROR: unable to write runtime file: $!";
		3513	};
		3514	}
		3515
		3516	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3517	$sig->send;
		3518	}
		3519	while (my $sig = shift @WAIT_FOR_TICK) {
		3520	$sig->send;
		3521	}
		3522
		3523	$NOW = Event::time;
		3524
2178	# if we are delayed by four ticks or more, skip them all	3525	# if we are delayed by four ticks or more, skip them all
2179	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3526	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2180		3527
2181	$TICK_WATCHER->at ($NEXT_TICK);	3528	$TICK_WATCHER->at ($NEXT_TICK);
2182	$TICK_WATCHER->start;	3529	$TICK_WATCHER->start;
		3530
		3531	$LOAD = ($NOW - $tick_start) / $TICK;
		3532	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3533
		3534	_post_tick;
2183	},	3535	},
2184	);	3536	);
2185		3537
		3538	{
		3539	BDB::min_parallel 8;
2186	IO::AIO::max_poll_time $TICK * 0.2;	3540	BDB::max_poll_time $TICK * 0.1;
2187		3541	$BDB_POLL_WATCHER = Event->io (
2188	Event->io (	3542	reentrant => 0,
2189	fd => IO::AIO::poll_fileno,	3543	fd => BDB::poll_fileno,
2190	poll => 'r',	3544	poll => 'r',
2191	prio => 5,	3545	prio => 0,
2192	data => WF_AUTOCANCEL,
2193	cb => \&IO::AIO::poll_cb,
2194	);
2195
2196	Event->timer (
2197	data => WF_AUTOCANCEL,	3546	data => WF_AUTOCANCEL,
		3547	cb => \&BDB::poll_cb,
		3548	);
		3549
		3550	BDB::set_sync_prepare {
		3551	my $status;
		3552	my $current = $Coro::current;
		3553	(
		3554	sub {
		3555	$status = $!;
		3556	$current->ready; undef $current;
		3557	},
		3558	sub {
		3559	Coro::schedule while defined $current;
		3560	$! = $status;
		3561	},
		3562	)
		3563	};
		3564
		3565	unless ($DB_ENV) {
		3566	$DB_ENV = BDB::db_env_create;
		3567	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3568	| BDB::LOG_AUTOREMOVE, 1);
		3569	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3570	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3571
		3572	cf::sync_job {
		3573	eval {
		3574	BDB::db_env_open
		3575	$DB_ENV,
		3576	$BDBDIR,
		3577	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3578	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3579	0666;
		3580
		3581	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3582	};
		3583
		3584	cf::cleanup "db_env_open(db): $@" if $@;
		3585	};
		3586	}
		3587
		3588	$BDB_DEADLOCK_WATCHER = Event->timer (
2198	after => 0,	3589	after => 3,
2199	interval => 10,	3590	interval => 1,
		3591	hard => 1,
		3592	prio => 0,
		3593	data => WF_AUTOCANCEL,
2200	cb => sub {	3594	cb => sub {
2201	(Coro::unblock_sub {	3595	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2202	write_runtime	3596	},
2203	or warn "ERROR: unable to write runtime file: $!";	3597	);
		3598	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3599	after => 11,
		3600	interval => 60,
		3601	hard => 1,
		3602	prio => 0,
		3603	data => WF_AUTOCANCEL,
		3604	cb => sub {
		3605	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3606	},
		3607	);
		3608	$BDB_TRICKLE_WATCHER = Event->timer (
		3609	after => 5,
		3610	interval => 10,
		3611	hard => 1,
		3612	prio => 0,
		3613	data => WF_AUTOCANCEL,
		3614	cb => sub {
		3615	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3616	},
		3617	);
		3618	}
		3619
		3620	{
		3621	IO::AIO::min_parallel 8;
		3622
		3623	undef $Coro::AIO::WATCHER;
		3624	IO::AIO::max_poll_time $TICK * 0.1;
		3625	$AIO_POLL_WATCHER = Event->io (
		3626	reentrant => 0,
		3627	data => WF_AUTOCANCEL,
		3628	fd => IO::AIO::poll_fileno,
		3629	poll => 'r',
		3630	prio => 0,
		3631	cb => \&IO::AIO::poll_cb,
		3632	);
		3633	}
		3634
		3635	my $_log_backtrace;
		3636
		3637	sub _log_backtrace {
		3638	my ($msg, @addr) = @_;
		3639
		3640	$msg =~ s/\n//;
		3641
		3642	# limit the # of concurrent backtraces
		3643	if ($_log_backtrace < 2) {
		3644	++$_log_backtrace;
		3645	async {
		3646	$Coro::current->{desc} = "abt $msg";
		3647
		3648	my @bt = fork_call {
		3649	@addr = map { sprintf "%x", $_ } @addr;
		3650	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3651	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3652	or die "addr2line: $!";
		3653
		3654	my @funcs;
		3655	my @res = <$fh>;
		3656	chomp for @res;
		3657	while (@res) {
		3658	my ($func, $line) = splice @res, 0, 2, ();
		3659	push @funcs, "[$func] $line";
		3660	}
		3661
		3662	@funcs
		3663	};
		3664
		3665	LOG llevInfo, "[ABT] $msg\n";
		3666	LOG llevInfo, "[ABT] $_\n" for @bt;
		3667	--$_log_backtrace;
2204	})->();	3668	};
		3669	} else {
		3670	LOG llevInfo, "[ABT] $msg\n";
		3671	LOG llevInfo, "[ABT] [suppressed]\n";
2205	},	3672	}
2206	);	3673	}
		3674
		3675	# load additional modules
		3676	use cf::pod;
2207		3677
2208	END { cf::emergency_save }	3678	END { cf::emergency_save }
2209		3679
2210	1	3680	1
2211		3681

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