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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 1.364 by root, Tue Sep 11 08:41:11 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_CHECKPOINT_WATCHER;
		86	our $BDB_TRICKLE_WATCHER;
		87	our $DB_ENV;
46		88
47	our %CFG;	89	our %CFG;
48		90
49	our $UPTIME; $UPTIME ||= time;	91	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	92	our $RUNTIME;
51		93
52	our %MAP; # all maps	94	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	95	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	96	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	97
		98	# used to convert map paths into valid unix filenames by replacing / by ∕
		99	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		100
		101	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		102	our $LOADAVG; # same thing, but with alpha-smoothing
		103	our $tick_start; # for load detecting purposes
56		104
57	binmode STDOUT;	105	binmode STDOUT;
58	binmode STDERR;	106	binmode STDERR;
59		107
60	# read virtual server time, if available	108	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	109	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	110	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	111	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	112	$RUNTIME = <$fh> + 0.;
65	}	113	}
66		114
67	mkdir cf::localdir;	115	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	116	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		117
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	118	our $EMERGENCY_POSITION;
		119
		120	sub cf::map::normalise;
76		121
77	#############################################################################	122	#############################################################################
78		123
79	=head2 GLOBAL VARIABLES	124	=head2 GLOBAL VARIABLES
80		125
…		…
87	=item $cf::RUNTIME	132	=item $cf::RUNTIME
88		133
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	134	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	135	every server tick.
91		136
92	=item $cf::LIBDIR	137	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		138	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		139	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		140
94	The perl library directory, where extensions and cf-specific modules can	141	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	142	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		143	unique-items directory, player file directory, random maps directory and
		144	database environment.
96		145
97	=item $cf::NOW	146	=item $cf::NOW
98		147
99	The time of the last (current) server tick.	148	The time of the last (current) server tick.
100		149
101	=item $cf::TICK	150	=item $cf::TICK
102		151
103	The interval between server ticks, in seconds.	152	The interval between server ticks, in seconds.
		153
		154	=item $cf::LOADAVG
		155
		156	The current CPU load on the server (alpha-smoothed), as a value between 0
		157	(none) and 1 (overloaded), indicating how much time is spent on processing
		158	objects per tick. Healthy values are < 0.5.
		159
		160	=item $cf::LOAD
		161
		162	The raw value load value from the last tick.
104		163
105	=item %cf::CFG	164	=item %cf::CFG
106		165
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	166	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	167	from wherever your confdir points to.
		168
		169	=item cf::wait_for_tick, cf::wait_for_tick_begin
		170
		171	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		172	returns directly I<after> the tick processing (and consequently, can only wake one process
		173	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		174
		175	=item @cf::INVOKE_RESULTS
		176
		177	This array contains the results of the last C<invoke ()> call. When
		178	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		179	that call.
109		180
110	=back	181	=back
111		182
112	=cut	183	=cut
113		184
114	BEGIN {	185	BEGIN {
115	*CORE::GLOBAL::warn = sub {	186	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	187	my $msg = join "", @_;
117	utf8::encode $msg;
118		188
119	$msg .= "\n"	189	$msg .= "\n"
120	unless $msg =~ /\n$/;	190	unless $msg =~ /\n$/;
121		191
		192	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		193
122	LOG llevError, "cfperl: $msg";	194	LOG llevError, $msg;
123	};	195	};
124	}	196	}
125		197
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	198	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	199	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	200	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	201	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	202	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		203	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	204	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		205
133	# we bless all objects into (empty) derived classes to force a method lookup	206	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	207	# within the Safe compartment.
135	for my $pkg (qw(	208	for my $pkg (qw(
136	cf::global cf::attachable	209	cf::global cf::attachable
…		…
145		218
146	$Event::DIED = sub {	219	$Event::DIED = sub {
147	warn "error in event callback: @_";	220	warn "error in event callback: @_";
148	};	221	};
149		222
150	my %ext_pkg;	223	#############################################################################
151	my @exts;
152	my @hook;
153		224
154	=head2 UTILITY FUNCTIONS	225	=head2 UTILITY FUNCTIONS
155		226
156	=over 4	227	=over 4
157		228
158	=cut	229	=item dumpval $ref
159		230
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	231	=cut
		232
		233	sub dumpval {
		234	eval {
		235	local $SIG{__DIE__};
		236	my $d;
		237	if (1) {
		238	$d = new Data::Dumper([$_[0]], ["*var"]);
		239	$d->Terse(1);
		240	$d->Indent(2);
		241	$d->Quotekeys(0);
		242	$d->Useqq(1);
		243	#$d->Bless(...);
		244	$d->Seen($_[1]) if @_ > 1;
		245	$d = $d->Dump();
		246	}
		247	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		248	$d
		249	} || "[unable to dump $_[0]: '$@']";
		250	}
161		251
162	=item $ref = cf::from_json $json	252	=item $ref = cf::from_json $json
163		253
164	Converts a JSON string into the corresponding perl data structure.	254	Converts a JSON string into the corresponding perl data structure.
165		255
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	256	=item $json = cf::to_json $ref
174		257
175	Converts a perl data structure into its JSON representation.	258	Converts a perl data structure into its JSON representation.
176		259
177	=cut	260	=cut
178		261
179	sub to_json($) {	262	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	263
181	JSON::Syck::Dump $_[0]	264	sub to_json ($) { $json_coder->encode ($_[0]) }
182	}	265	sub from_json ($) { $json_coder->decode ($_[0]) }
183		266
184	=item cf::lock_wait $string	267	=item cf::lock_wait $string
185		268
186	Wait until the given lock is available. See cf::lock_acquire.	269	Wait until the given lock is available. See cf::lock_acquire.
187		270
…		…
190	Wait until the given lock is available and then acquires it and returns	273	Wait until the given lock is available and then acquires it and returns
191	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	274	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
192	for example when the coroutine gets canceled), the lock is automatically	275	for example when the coroutine gets canceled), the lock is automatically
193	returned.	276	returned.
194		277
		278	Locks are *not* recursive, locking from the same coro twice results in a
		279	deadlocked coro.
		280
195	Lock names should begin with a unique identifier (for example, cf::map::find	281	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	282	uses map_find and cf::map::load uses map_load).
197		283
		284	=item $locked = cf::lock_active $string
		285
		286	Return true if the lock is currently active, i.e. somebody has locked it.
		287
198	=cut	288	=cut
199		289
200	our %LOCK;	290	our %LOCK;
		291	our %LOCKER;#d#
201		292
202	sub lock_wait($) {	293	sub lock_wait($) {
203	my ($key) = @_;	294	my ($key) = @_;
		295
		296	if ($LOCKER{$key} == $Coro::current) {#d#
		297	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		298	return;#d#
		299	}#d#
204		300
205	# wait for lock, if any	301	# wait for lock, if any
206	while ($LOCK{$key}) {	302	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;	303	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;	304	Coro::schedule;
…		…
214		310
215	# wait, to be sure we are not locked	311	# wait, to be sure we are not locked
216	lock_wait $key;	312	lock_wait $key;
217		313
218	$LOCK{$key} = [];	314	$LOCK{$key} = [];
		315	$LOCKER{$key} = $Coro::current;#d#
219		316
220	Coro::guard {	317	Coro::guard {
		318	delete $LOCKER{$key};#d#
221	# wake up all waiters, to be on the safe side	319	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	320	$_->ready for @{ delete $LOCK{$key} };
223	}	321	}
224	}	322	}
225		323
		324	sub lock_active($) {
		325	my ($key) = @_;
		326
		327	! ! $LOCK{$key}
		328	}
		329
226	sub freeze_mainloop {	330	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	331	return unless $TICK_WATCHER->is_active;
228		332
229	my $guard = Coro::guard { $TICK_WATCHER->start };	333	my $guard = Coro::guard {
		334	$TICK_WATCHER->start;
		335	};
230	$TICK_WATCHER->stop;	336	$TICK_WATCHER->stop;
231	$guard	337	$guard
232	}	338	}
233		339
		340	=item cf::get_slot $time[, $priority[, $name]]
		341
		342	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		343	This call blocks and returns only when you have at least C<$time> seconds
		344	of cpu time till the next tick. The slot is only valid till the next cede.
		345
		346	The optional C<$name> can be used to identify the job to run. It might be
		347	used for statistical purposes and should identify the same time-class.
		348
		349	Useful for short background jobs.
		350
		351	=cut
		352
		353	our @SLOT_QUEUE;
		354	our $SLOT_QUEUE;
		355
		356	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		357	$SLOT_QUEUE = Coro::async {
		358	my $signal = new Coro::Signal;
		359
		360	while () {
		361	next_job:
		362	my $avail = cf::till_tick;
		363	if ($avail > 0.01) {
		364	for (0 .. $#SLOT_QUEUE) {
		365	if ($SLOT_QUEUE[$_][0] < $avail) {
		366	my $job = splice @SLOT_QUEUE, $_, 1, ();
		367	$job->[2]->send;
		368	Coro::cede;
		369	goto next_job;
		370	}
		371	}
		372	}
		373
		374	if (@SLOT_QUEUE) {
		375	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		376	push @cf::WAIT_FOR_TICK, $signal;
		377	$signal->wait;
		378	} else {
		379	Coro::schedule;
		380	}
		381	}
		382	};
		383
		384	sub get_slot($;$$) {
		385	my ($time, $pri, $name) = @_;
		386
		387	$time = $TICK * .6 if $time > $TICK * .6;
		388	my $sig = new Coro::Signal;
		389
		390	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		391	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		392	$SLOT_QUEUE->ready;
		393	$sig->wait;
		394	}
		395
		396	=item cf::async { BLOCK }
		397
		398	Currently the same as Coro::async_pool, meaning you cannot use
		399	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		400	thing you are allowed to do is call C<prio> on it.
		401
		402	=cut
		403
		404	BEGIN { *async = \&Coro::async_pool }
		405
234	=item cf::sync_job { BLOCK }	406	=item cf::sync_job { BLOCK }
235		407
236	The design of crossfire+ requires that the main coro ($Coro::main) is	408	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
237	always able to handle events or runnable, as crossfire+ is only partly	409	is always able to handle events or runnable, as Crossfire TRT is only
238	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	410	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		411	acceptable.
239		412
240	If it must be done, put the blocking parts into C<sync_job>. This will run	413	If it must be done, put the blocking parts into C<sync_job>. This will run
241	the given BLOCK in another coroutine while waiting for the result. The	414	the given BLOCK in another coroutine while waiting for the result. The
242	server will be frozen during this time, so the block should either finish	415	server will be frozen during this time, so the block should either finish
243	fast or be very important.	416	fast or be very important.
…		…
246		419
247	sub sync_job(&) {	420	sub sync_job(&) {
248	my ($job) = @_;	421	my ($job) = @_;
249		422
250	if ($Coro::current == $Coro::main) {	423	if ($Coro::current == $Coro::main) {
		424	my $time = Event::time;
		425
251	# this is the main coro, too bad, we have to block	426	# this is the main coro, too bad, we have to block
252	# till the operation succeeds, freezing the server :/	427	# till the operation succeeds, freezing the server :/
253		428
254	# TODO: use suspend/resume instead	429	# TODO: use suspend/resume instead
255	# (but this is cancel-safe)	430	# (but this is cancel-safe)
256	my $freeze_guard = freeze_mainloop;	431	my $freeze_guard = freeze_mainloop;
257		432
258	my $busy = 1;	433	my $busy = 1;
259	my @res;	434	my @res;
260		435
261	(Coro::async_pool {	436	(async {
262	@res = eval { $job->() };	437	@res = eval { $job->() };
263	warn $@ if $@;	438	warn $@ if $@;
264	undef $busy;	439	undef $busy;
265	})->prio (Coro::PRIO_MAX);	440	})->prio (Coro::PRIO_MAX);
266		441
267	while ($busy) {	442	while ($busy) {
268	unless (Coro::cede) {	443	Coro::cede or Event::one_event;
269	Coro::nready ? Event::one_event 0 : Event::one_event;
270	Coro::cede_notself unless Coro::cede;
271	}	444	}
272	}	445
		446	$time = Event::time - $time;
		447
		448	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		449	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		450
		451	$tick_start += $time; # do not account sync jobs to server load
273		452
274	wantarray ? @res : $res[0]	453	wantarray ? @res : $res[0]
275	} else {	454	} else {
276	# we are in another coroutine, how wonderful, everything just works	455	# we are in another coroutine, how wonderful, everything just works
277		456
278	$job->()	457	$job->()
279	}	458	}
280	}	459	}
281		460
282	=item $coro = cf::coro { BLOCK }	461	=item $coro = cf::async_ext { BLOCK }
283		462
284	Creates (and readies) and returns a new coro. This coro is automcatially	463	Like async, but this coro is automatically being canceled when the
285	being canceled when the extension calling this is being unloaded.	464	extension calling this is being unloaded.
286		465
287	=cut	466	=cut
288		467
289	sub coro(&) {	468	sub async_ext(&) {
290	my $cb = shift;	469	my $cb = shift;
291		470
292	my $coro = &Coro::async_pool ($cb);	471	my $coro = &Coro::async ($cb);
293		472
294	$coro->on_destroy (sub {	473	$coro->on_destroy (sub {
295	delete $EXT_CORO{$coro+0};	474	delete $EXT_CORO{$coro+0};
296	});	475	});
297	$EXT_CORO{$coro+0} = $coro;	476	$EXT_CORO{$coro+0} = $coro;
298		477
299	$coro	478	$coro
300	}	479	}
301		480
302	sub write_runtime {	481	=item fork_call { }, $args
303	my $runtime = cf::localdir . "/runtime";
304		482
305	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	483	Executes the given code block with the given arguments in a seperate
306	or return;	484	process, returning the results. Everything must be serialisable with
		485	Coro::Storable. May, of course, block. Note that the executed sub may
		486	never block itself or use any form of Event handling.
307		487
308	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	488	=cut
309	(aio_write $fh, 0, (length $value), $value, 0) <= 0
310	and return;
311		489
312	aio_fsync $fh	490	sub fork_call(&@) {
313	and return;	491	my ($cb, @args) = @_;
314		492
315	close $fh	493	# we seemingly have to make a local copy of the whole thing,
316	or return;	494	# otherwise perl prematurely frees the stuff :/
		495	# TODO: investigate and fix (likely this will be rather laborious)
317		496
318	aio_rename "$runtime~", $runtime	497	my @res = Coro::Util::fork_eval {
319	and return;	498	reset_signals;
		499	&$cb
		500	}, @args;
320		501
		502	wantarray ? @res : $res[-1]
		503	}
		504
		505	=item $value = cf::db_get $family => $key
		506
		507	Returns a single value from the environment database.
		508
		509	=item cf::db_put $family => $key => $value
		510
		511	Stores the given C<$value> in the family. It can currently store binary
		512	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		513
		514	=item $db = cf::db_table "name"
		515
		516	Create and/or open a new database table. The string must not be "db" and must be unique
		517	within each server.
		518
		519	=cut
		520
		521	sub db_table($) {
		522	my ($name) = @_;
		523	my $db = BDB::db_create $DB_ENV;
		524
		525	eval {
		526	$db->set_flags (BDB::CHKSUM);
		527
		528	utf8::encode $name;
		529	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		530	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		531	cf::cleanup "db_open(db): $!" if $!;
		532	};
		533	cf::cleanup "db_open(db): $@" if $@;
		534
		535	$db
		536	}
		537
		538	our $DB;
		539
		540	sub db_init {
		541	cf::sync_job {
		542	$DB ||= db_table "db";
		543	};
		544	}
		545
		546	sub db_get($$) {
		547	my $key = "$_[0]/$_[1]";
		548
		549	cf::sync_job {
		550	BDB::db_get $DB, undef, $key, my $data;
		551
		552	$! ? ()
		553	: $data
321	1	554	}
		555	}
		556
		557	sub db_put($$$) {
		558	BDB::dbreq_pri 4;
		559	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		560	}
		561
		562	=item cf::cache $id => [$paths...], $processversion => $process
		563
		564	Generic caching function that returns the value of the resource $id,
		565	caching and regenerating as required.
		566
		567	This function can block.
		568
		569	=cut
		570
		571	sub cache {
		572	my ($id, $src, $processversion, $process) = @_;
		573
		574	my $meta =
		575	join "\x00",
		576	$processversion,
		577	map {
		578	aio_stat $_
		579	and Carp::croak "$_: $!";
		580
		581	($_, (stat _)[7,9])
		582	} @$src;
		583
		584	my $dbmeta = db_get cache => "$id/meta";
		585	if ($dbmeta ne $meta) {
		586	# changed, we may need to process
		587
		588	my @data;
		589	my $md5;
		590
		591	for (0 .. $#$src) {
		592	0 <= aio_load $src->[$_], $data[$_]
		593	or Carp::croak "$src->[$_]: $!";
		594	}
		595
		596	# if processing is expensive, check
		597	# checksum first
		598	if (1) {
		599	$md5 =
		600	join "\x00",
		601	$processversion,
		602	map {
		603	cf::cede_to_tick;
		604	($src->[$_], Digest::MD5::md5_hex $data[$_])
		605	} 0.. $#$src;
		606
		607
		608	my $dbmd5 = db_get cache => "$id/md5";
		609	if ($dbmd5 eq $md5) {
		610	db_put cache => "$id/meta", $meta;
		611
		612	return db_get cache => "$id/data";
		613	}
		614	}
		615
		616	my $t1 = Time::HiRes::time;
		617	my $data = $process->(\@data);
		618	my $t2 = Time::HiRes::time;
		619
		620	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		621
		622	db_put cache => "$id/data", $data;
		623	db_put cache => "$id/md5" , $md5;
		624	db_put cache => "$id/meta", $meta;
		625
		626	return $data;
		627	}
		628
		629	db_get cache => "$id/data"
		630	}
		631
		632	=item cf::datalog type => key => value, ...
		633
		634	Log a datalog packet of the given type with the given key-value pairs.
		635
		636	=cut
		637
		638	sub datalog($@) {
		639	my ($type, %kv) = @_;
		640	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
322	}	641	}
323		642
324	=back	643	=back
325		644
326	=cut	645	=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		646
448	#############################################################################	647	#############################################################################
449		648
450	=head2 ATTACHABLE OBJECTS	649	=head2 ATTACHABLE OBJECTS
451		650
…		…
453	attach callbacks/event handlers (a collection of which is called an "attachment")	652	attach callbacks/event handlers (a collection of which is called an "attachment")
454	to it. All such attachable objects support the following methods.	653	to it. All such attachable objects support the following methods.
455		654
456	In the following description, CLASS can be any of C<global>, C<object>	655	In the following description, CLASS can be any of C<global>, C<object>
457	C<player>, C<client> or C<map> (i.e. the attachable objects in	656	C<player>, C<client> or C<map> (i.e. the attachable objects in
458	crossfire+).	657	Crossfire TRT).
459		658
460	=over 4	659	=over 4
461		660
462	=item $attachable->attach ($attachment, key => $value...)	661	=item $attachable->attach ($attachment, key => $value...)
463		662
…		…
577	our @CB_TYPE = (); # registry for type (cf-object class) based events	776	our @CB_TYPE = (); # registry for type (cf-object class) based events
578	our @CB_MAP = ();	777	our @CB_MAP = ();
579		778
580	my %attachment;	779	my %attachment;
581		780
		781	sub cf::attachable::thawer_merge {
		782	# simply override everything except _meta
		783	local $_[0]{_meta};
		784	%{$_[0]} = %{$_[1]};
		785	}
		786
582	sub _attach_cb($$$$) {	787	sub _attach_cb($$$$) {
583	my ($registry, $event, $prio, $cb) = @_;	788	my ($registry, $event, $prio, $cb) = @_;
584		789
585	use sort 'stable';	790	use sort 'stable';
586		791
…		…
620	$registry = $CB_TYPE[$object_type] ||= [];	825	$registry = $CB_TYPE[$object_type] ||= [];
621		826
622	} elsif ($type eq "subtype") {	827	} elsif ($type eq "subtype") {
623	defined $object_type or Carp::croak "subtype specified without type";	828	defined $object_type or Carp::croak "subtype specified without type";
624	my $object_subtype = shift @arg;	829	my $object_subtype = shift @arg;
625	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	830	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
626		831
627	} elsif ($type eq "package") {	832	} elsif ($type eq "package") {
628	my $pkg = shift @arg;	833	my $pkg = shift @arg;
629		834
630	while (my ($name, $id) = each %cb_id) {	835	while (my ($name, $id) = each %cb_id) {
…		…
659	_attach $registry, $klass, @attach;	864	_attach $registry, $klass, @attach;
660	}	865	}
661		866
662	$obj->{$name} = \%arg;	867	$obj->{$name} = \%arg;
663	} else {	868	} else {
664	warn "object uses attachment '$name' that is not available, postponing.\n";	869	warn "object uses attachment '$name' which is not available, postponing.\n";
665	}	870	}
666		871
667	$obj->{_attachment}{$name} = undef;	872	$obj->{_attachment}{$name} = undef;
668	}	873	}
669		874
…		…
671	if (ref $_[0]) {	876	if (ref $_[0]) {
672	_object_attach @_;	877	_object_attach @_;
673	} else {	878	} else {
674	_attach shift->_attach_registry, @_;	879	_attach shift->_attach_registry, @_;
675	}	880	}
		881	_recalc_want;
676	};	882	};
677		883
678	# all those should be optimised	884	# all those should be optimised
679	sub cf::attachable::detach {	885	sub cf::attachable::detach {
680	my ($obj, $name) = @_;	886	my ($obj, $name) = @_;
…		…
683	delete $obj->{_attachment}{$name};	889	delete $obj->{_attachment}{$name};
684	reattach ($obj);	890	reattach ($obj);
685	} else {	891	} else {
686	Carp::croak "cannot, currently, detach class attachments";	892	Carp::croak "cannot, currently, detach class attachments";
687	}	893	}
		894	_recalc_want;
688	};	895	};
689		896
690	sub cf::attachable::attached {	897	sub cf::attachable::attached {
691	my ($obj, $name) = @_;	898	my ($obj, $name) = @_;
692		899
…		…
707	";	914	";
708	die if $@;	915	die if $@;
709	}	916	}
710		917
711	our $override;	918	our $override;
712	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	919	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
713		920
714	sub override {	921	sub override {
715	$override = 1;	922	$override = 1;
716	@invoke_results = ();	923	@INVOKE_RESULTS = (@_);
717	}	924	}
718		925
719	sub do_invoke {	926	sub do_invoke {
720	my $event = shift;	927	my $event = shift;
721	my $callbacks = shift;	928	my $callbacks = shift;
722		929
723	@invoke_results = ();	930	@INVOKE_RESULTS = ();
724		931
725	local $override;	932	local $override;
726		933
727	for (@$callbacks) {	934	for (@$callbacks) {
728	eval { &{$_->[1]} };	935	eval { &{$_->[1]} };
…		…
745		952
746	Generate an object-specific event with the given arguments.	953	Generate an object-specific event with the given arguments.
747		954
748	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	955	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
749	removed in future versions), and there is no public API to access override	956	removed in future versions), and there is no public API to access override
750	results (if you must, access C<@cf::invoke_results> directly).	957	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
751		958
752	=back	959	=back
753		960
754	=cut	961	=cut
755		962
756	#############################################################################	963	#############################################################################
757	# object support	964	# object support
		965	#
		966
		967	sub _can_merge {
		968	my ($ob1, $ob2) = @_;
		969
		970	local $Storable::canonical = 1;
		971	my $fob1 = Storable::freeze $ob1;
		972	my $fob2 = Storable::freeze $ob2;
		973
		974	$fob1 eq $fob2
		975	}
758		976
759	sub reattach {	977	sub reattach {
760	# basically do the same as instantiate, without calling instantiate	978	# basically do the same as instantiate, without calling instantiate
761	my ($obj) = @_;	979	my ($obj) = @_;
		980
		981	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
762		982
763	my $registry = $obj->registry;	983	my $registry = $obj->registry;
764		984
765	@$registry = ();	985	@$registry = ();
766		986
…		…
805	);	1025	);
806		1026
807	sub object_freezer_save {	1027	sub object_freezer_save {
808	my ($filename, $rdata, $objs) = @_;	1028	my ($filename, $rdata, $objs) = @_;
809		1029
		1030	my $guard = cf::lock_acquire "io";
		1031
810	sync_job {	1032	sync_job {
811	if (length $$rdata) {	1033	if (length $$rdata) {
		1034	utf8::decode (my $decname = $filename);
812	warn sprintf "saving %s (%d,%d)\n",	1035	warn sprintf "saving %s (%d,%d)\n",
813	$filename, length $$rdata, scalar @$objs;	1036	$decname, length $$rdata, scalar @$objs;
814		1037
815	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1038	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
816	chmod SAVE_MODE, $fh;	1039	chmod SAVE_MODE, $fh;
817	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1040	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
818	aio_fsync $fh;	1041	aio_fsync $fh if $cf::USE_FSYNC;
819	close $fh;	1042	close $fh;
820		1043
821	if (@$objs) {	1044	if (@$objs) {
822	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1045	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
823	chmod SAVE_MODE, $fh;	1046	chmod SAVE_MODE, $fh;
824	my $data = Storable::nfreeze { version => 1, objs => $objs };	1047	my $data = Storable::nfreeze { version => 1, objs => $objs };
825	aio_write $fh, 0, (length $data), $data, 0;	1048	aio_write $fh, 0, (length $data), $data, 0;
826	aio_fsync $fh;	1049	aio_fsync $fh if $cf::USE_FSYNC;
827	close $fh;	1050	close $fh;
828	aio_rename "$filename.pst~", "$filename.pst";	1051	aio_rename "$filename.pst~", "$filename.pst";
829	}	1052	}
830	} else {	1053	} else {
831	aio_unlink "$filename.pst";	1054	aio_unlink "$filename.pst";
…		…
837	}	1060	}
838	} else {	1061	} else {
839	aio_unlink $filename;	1062	aio_unlink $filename;
840	aio_unlink "$filename.pst";	1063	aio_unlink "$filename.pst";
841	}	1064	}
842	}	1065	};
		1066
		1067	undef $guard;
843	}	1068	}
844		1069
845	sub object_freezer_as_string {	1070	sub object_freezer_as_string {
846	my ($rdata, $objs) = @_;	1071	my ($rdata, $objs) = @_;
847		1072
…		…
852		1077
853	sub object_thawer_load {	1078	sub object_thawer_load {
854	my ($filename) = @_;	1079	my ($filename) = @_;
855		1080
856	my ($data, $av);	1081	my ($data, $av);
		1082
		1083	my $guard = cf::lock_acquire "io";
857		1084
858	(aio_load $filename, $data) >= 0	1085	(aio_load $filename, $data) >= 0
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
		1092	undef $guard;
864	$av = eval { (Storable::thaw $av)->{objs} };	1093	$av = eval { (Storable::thaw $av)->{objs} };
865	}	1094	}
866		1095
		1096	utf8::decode (my $decname = $filename);
867	warn sprintf "loading %s (%d)\n",	1097	warn sprintf "loading %s (%d,%d)\n",
868	$filename, length $data, scalar @{$av || []};#d#	1098	$decname, length $data, scalar @{$av || []};
		1099
869	return ($data, $av);	1100	($data, $av)
870	}	1101	}
		1102
		1103	=head2 COMMAND CALLBACKS
		1104
		1105	=over 4
		1106
		1107	=cut
871		1108
872	#############################################################################	1109	#############################################################################
873	# command handling &c	1110	# command handling &c
874		1111
875	=item cf::register_command $name => \&callback($ob,$args);	1112	=item cf::register_command $name => \&callback($ob,$args);
…		…
888	push @{ $COMMAND{$name} }, [$caller, $cb];	1125	push @{ $COMMAND{$name} }, [$caller, $cb];
889	}	1126	}
890		1127
891	=item cf::register_extcmd $name => \&callback($pl,$packet);	1128	=item cf::register_extcmd $name => \&callback($pl,$packet);
892		1129
893	Register a callbackf ro execution when the client sends an extcmd packet.	1130	Register a callback for execution when the client sends an (synchronous)
		1131	extcmd packet. Ext commands will be processed in the order they are
		1132	received by the server, like other user commands. The first argument is
		1133	the logged-in player. Ext commands can only be processed after a player
		1134	has logged in successfully.
894		1135
895	If the callback returns something, it is sent back as if reply was being	1136	If the callback returns something, it is sent back as if reply was being
896	called.	1137	called.
897		1138
		1139	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1140
		1141	Register a callback for execution when the client sends an (asynchronous)
		1142	exticmd packet. Exti commands are processed by the server as soon as they
		1143	are received, i.e. out of order w.r.t. other commands. The first argument
		1144	is a client socket. Exti commands can be received anytime, even before
		1145	log-in.
		1146
		1147	If the callback returns something, it is sent back as if reply was being
		1148	called.
		1149
898	=cut	1150	=cut
899		1151
900	sub register_extcmd {	1152	sub register_extcmd {
901	my ($name, $cb) = @_;	1153	my ($name, $cb) = @_;
902		1154
903	my $caller = caller;
904	#warn "registering extcmd '$name' to '$caller'";
905
906	$EXTCMD{$name} = [$cb, $caller];	1155	$EXTCMD{$name} = $cb;
		1156	}
		1157
		1158	sub register_exticmd {
		1159	my ($name, $cb) = @_;
		1160
		1161	$EXTICMD{$name} = $cb;
907	}	1162	}
908		1163
909	cf::player->attach (	1164	cf::player->attach (
910	on_command => sub {	1165	on_command => sub {
911	my ($pl, $name, $params) = @_;	1166	my ($pl, $name, $params) = @_;
…		…
920	cf::override;	1175	cf::override;
921	},	1176	},
922	on_extcmd => sub {	1177	on_extcmd => sub {
923	my ($pl, $buf) = @_;	1178	my ($pl, $buf) = @_;
924		1179
925	my $msg = eval { from_json $buf };	1180	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
926		1181
927	if (ref $msg) {	1182	if (ref $msg) {
		1183	my ($type, $reply, @payload) =
		1184	"ARRAY" eq ref $msg
		1185	? @$msg
		1186	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1187
		1188	my @reply;
		1189
928	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1190	if (my $cb = $EXTCMD{$type}) {
929	if (my %reply = $cb->[0]->($pl, $msg)) {	1191	@reply = $cb->($pl, @payload);
930	$pl->ext_reply ($msg->{msgid}, %reply);
931	}
932	}	1192	}
		1193
		1194	$pl->ext_reply ($reply, @reply)
		1195	if $reply;
		1196
933	} else {	1197	} else {
934	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
935	}	1199	}
936		1200
937	cf::override;	1201	cf::override;
938	},	1202	},
939	);	1203	);
940		1204
941	sub register {
942	my ($base, $pkg) = @_;
943
944	#TODO
945	}
946
947	sub load_extension {	1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
		1209	for my $path (<$LIBDIR/*.ext>) {
		1210	next unless -r $path;
		1211
		1212	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1213	my $base = $1;
		1214	my $pkg = $1;
		1215	$pkg =~ s/[^[:word:]]/_/g;
		1216	$pkg = "ext::$pkg";
		1217
		1218	open my $fh, "<:utf8", $path
		1219	or die "$path: $!";
		1220
		1221	my $source = do { local $/; <$fh> };
		1222
		1223	my %ext = (
		1224	path => $path,
		1225	base => $base,
		1226	pkg => $pkg,
		1227	);
		1228
		1229	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1230	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1231
		1232	$ext{source} =
		1233	"package $pkg; use strict; use utf8;\n"
		1234	. "#line 1 \"$path\"\n{\n"
		1235	. $source
		1236	. "\n};\n1";
		1237
		1238	$todo{$base} = \%ext;
		1239	}
		1240
		1241	my %done;
		1242	while (%todo) {
		1243	my $progress;
		1244
		1245	while (my ($k, $v) = each %todo) {
		1246	for (split /,\s*/, $v->{meta}{depends}) {
		1247	goto skip
		1248	unless exists $done{$_};
		1249	}
		1250
		1251	warn "... loading '$k' into '$v->{pkg}'\n";
		1252
		1253	unless (eval $v->{source}) {
		1254	my $msg = $@ ? "$v->{path}: $@\n"
		1255	: "$v->{base}: extension inactive.\n";
		1256
		1257	if (exists $v->{meta}{mandatory}) {
		1258	warn $msg;
		1259	warn "mandatory extension failed to load, exiting.\n";
		1260	exit 1;
		1261	}
		1262
		1263	warn $msg;
		1264	}
		1265
		1266	$done{$k} = delete $todo{$k};
		1267	push @EXTS, $v->{pkg};
		1268	$progress = 1;
		1269	}
		1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
		1275	};
		1276	}
		1277
		1278	#############################################################################
		1279
		1280	=back
		1281
		1282	=head2 CORE EXTENSIONS
		1283
		1284	Functions and methods that extend core crossfire objects.
		1285
		1286	=cut
		1287
		1288	package cf::player;
		1289
		1290	use Coro::AIO;
		1291
		1292	=head3 cf::player
		1293
		1294	=over 4
		1295
		1296	=item cf::player::num_playing
		1297
		1298	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1299
		1300	=cut
		1301
		1302	sub num_playing {
		1303	scalar grep
		1304	$_->ob->map
		1305	&& !$_->hidden
		1306	&& !$_->ob->flag (cf::FLAG_WIZ),
		1307	cf::player::list
		1308	}
		1309
		1310	=item cf::player::find $login
		1311
		1312	Returns the given player object, loading it if necessary (might block).
		1313
		1314	=cut
		1315
		1316	sub playerdir($) {
		1317	"$PLAYERDIR/"
		1318	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1319	}
		1320
		1321	sub path($) {
		1322	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1323
		1324	(playerdir $login) . "/playerdata"
		1325	}
		1326
		1327	sub find_active($) {
		1328	$cf::PLAYER{$_[0]}
		1329	and $cf::PLAYER{$_[0]}->active
		1330	and $cf::PLAYER{$_[0]}
		1331	}
		1332
		1333	sub exists($) {
		1334	my ($login) = @_;
		1335
		1336	$cf::PLAYER{$login}
		1337	or cf::sync_job { !aio_stat path $login }
		1338	}
		1339
		1340	sub find($) {
		1341	return $cf::PLAYER{$_[0]} || do {
		1342	my $login = $_[0];
		1343
		1344	my $guard = cf::lock_acquire "user_find:$login";
		1345
		1346	$cf::PLAYER{$_[0]} || do {
		1347	# rename old playerfiles to new ones
		1348	#TODO: remove when no longer required
		1349	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1350	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1351	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1352	aio_unlink +(playerdir $login) . "/$login.pl";
		1353
		1354	my $f = new_from_file cf::object::thawer path $login
		1355	or return;
		1356
		1357	$f->next;
		1358	my $pl = cf::player::load_pl $f
		1359	or return;
		1360	local $cf::PLAYER_LOADING{$login} = $pl;
		1361	$f->resolve_delayed_derefs;
		1362	$cf::PLAYER{$login} = $pl
		1363	}
		1364	}
		1365	}
		1366
		1367	sub save($) {
		1368	my ($pl) = @_;
		1369
		1370	return if $pl->{deny_save};
		1371
		1372	my $path = path $pl;
		1373	my $guard = cf::lock_acquire "user_save:$path";
		1374
		1375	return if $pl->{deny_save};
		1376
		1377	aio_mkdir playerdir $pl, 0770;
		1378	$pl->{last_save} = $cf::RUNTIME;
		1379
		1380	$pl->save_pl ($path);
		1381	cf::cede_to_tick;
		1382	}
		1383
		1384	sub new($) {
		1385	my ($login) = @_;
		1386
		1387	my $self = create;
		1388
		1389	$self->ob->name ($login);
		1390	$self->{deny_save} = 1;
		1391
		1392	$cf::PLAYER{$login} = $self;
		1393
		1394	$self
		1395	}
		1396
		1397	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1398
		1399	=cut
		1400
		1401	sub send_msg {
		1402	my $ns = shift->ns
		1403	or return;
		1404	$ns->send_msg (@_);
		1405	}
		1406
		1407	=item $pl->quit_character
		1408
		1409	Nukes the player without looking back. If logged in, the connection will
		1410	be destroyed. May block for a long time.
		1411
		1412	=cut
		1413
		1414	sub quit_character {
		1415	my ($pl) = @_;
		1416
		1417	my $name = $pl->ob->name;
		1418
		1419	$pl->{deny_save} = 1;
		1420	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1421
		1422	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1423	$pl->deactivate;
		1424	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1425	$pl->ns->destroy if $pl->ns;
		1426
		1427	my $path = playerdir $pl;
		1428	my $temp = "$path~$cf::RUNTIME~deleting~";
		1429	aio_rename $path, $temp;
		1430	delete $cf::PLAYER{$pl->ob->name};
		1431	$pl->destroy;
		1432
		1433	my $prefix = qr<^~\Q$name\E/>;
		1434
		1435	# nuke player maps
		1436	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1437
		1438	IO::AIO::aio_rmtree $temp;
		1439	}
		1440
		1441	=item $pl->kick
		1442
		1443	Kicks a player out of the game. This destroys the connection.
		1444
		1445	=cut
		1446
		1447	sub kick {
		1448	my ($pl, $kicker) = @_;
		1449
		1450	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1451	$pl->killer ("kicked");
		1452	$pl->ns->destroy;
		1453	}
		1454
		1455	=item cf::player::list_logins
		1456
		1457	Returns am arrayref of all valid playernames in the system, can take a
		1458	while and may block, so not sync_job-capable, ever.
		1459
		1460	=cut
		1461
		1462	sub list_logins {
		1463	my $dirs = aio_readdir $PLAYERDIR
		1464	or return [];
		1465
		1466	my @logins;
		1467
		1468	for my $login (@$dirs) {
		1469	my $path = path $login;
		1470
		1471	# a .pst is a dead give-away for a valid player
		1472	unless (-e "$path.pst") {
		1473	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1474	aio_read $fh, 0, 512, my $buf, 0 or next;
		1475	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1476	}
		1477
		1478	utf8::decode $login;
		1479	push @logins, $login;
		1480	}
		1481
		1482	\@logins
		1483	}
		1484
		1485	=item $player->maps
		1486
		1487	Returns an arrayref of map paths that are private for this
		1488	player. May block.
		1489
		1490	=cut
		1491
		1492	sub maps($) {
		1493	my ($pl) = @_;
		1494
		1495	$pl = ref $pl ? $pl->ob->name : $pl;
		1496
		1497	my $files = aio_readdir playerdir $pl
		1498	or return;
		1499
		1500	my @paths;
		1501
		1502	for (@$files) {
		1503	utf8::decode $_;
		1504	next if /\.(?:pl|pst)$/;
		1505	next unless /^$PATH_SEP/o;
		1506
		1507	push @paths, cf::map::normalise "~$pl/$_";
		1508	}
		1509
		1510	\@paths
		1511	}
		1512
		1513	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1514
		1515	Expand crossfire pod fragments into protocol xml.
		1516
		1517	=cut
		1518
		1519	sub expand_cfpod {
		1520	((my $self), (local $_)) = @_;
		1521
		1522	# escape & and <
		1523	s/&/&amp;/g;
		1524	s/(?<![BIUGHT])</&lt;/g;
		1525
		1526	# this is buggy, it needs to properly take care of nested <'s
		1527
		1528	1 while
		1529	# replace B<>, I<>, U<> etc.
		1530	s/B<([^\>]*)>/<b>$1<\/b>/
		1531	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1532	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1533	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1534	# replace G<male|female> tags
		1535	|| s{G<([^>|]*)\|([^>]*)>}{
		1536	$self->gender ? $2 : $1
		1537	}ge
		1538	# replace H<hint text>
		1539	|| s{H<([^\>]*)>}
		1540	{
		1541	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1542	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1543	"")
		1544	[$self->{hintmode}]
		1545	}ge;
		1546
		1547	# create single paragraphs (very hackish)
		1548	s/(?<=\S)\n(?=\w)/ /g;
		1549
		1550	# compress some whitespace
		1551	s/\s+\n/\n/g; # ws line-ends
		1552	s/\n\n+/\n/g; # double lines
		1553	s/^\n+//; # beginning lines
		1554	s/\n+$//; # ending lines
		1555
		1556	$_
		1557	}
		1558
		1559	sub hintmode {
		1560	$_[0]{hintmode} = $_[1] if @_ > 1;
		1561	$_[0]{hintmode}
		1562	}
		1563
		1564	=item $player->ext_reply ($msgid, @msg)
		1565
		1566	Sends an ext reply to the player.
		1567
		1568	=cut
		1569
		1570	sub ext_reply($$@) {
		1571	my ($self, $id, @msg) = @_;
		1572
		1573	$self->ns->ext_reply ($id, @msg)
		1574	}
		1575
		1576	=item $player->ext_msg ($type, @msg)
		1577
		1578	Sends an ext event to the client.
		1579
		1580	=cut
		1581
		1582	sub ext_msg($$@) {
		1583	my ($self, $type, @msg) = @_;
		1584
		1585	$self->ns->ext_msg ($type, @msg);
		1586	}
		1587
		1588	=head3 cf::region
		1589
		1590	=over 4
		1591
		1592	=cut
		1593
		1594	package cf::region;
		1595
		1596	=item cf::region::find_by_path $path
		1597
		1598	Tries to decuce the likely region for a map knowing only its path.
		1599
		1600	=cut
		1601
		1602	sub find_by_path($) {
948	my ($path) = @_;	1603	my ($path) = @_;
949		1604
950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1605	my ($match, $specificity);
951	my $base = $1;
952	my $pkg = $1;
953	$pkg =~ s/[^[:word:]]/_/g;
954	$pkg = "ext::$pkg";
955		1606
956	warn "loading '$path' into '$pkg'\n";	1607	for my $region (list) {
957		1608	if ($region->{match} && $path =~ $region->{match}) {
958	open my $fh, "<:utf8", $path	1609	($match, $specificity) = ($region, $region->specificity)
959	or die "$path: $!";	1610	if $region->specificity > $specificity;
960		1611	}
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	# }	1612	}
990		1613
991	# remove commands	1614	$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	}	1615	}
1097		1616
1098	=back	1617	=back
1099
1100		1618
1101	=head3 cf::map	1619	=head3 cf::map
1102		1620
1103	=over 4	1621	=over 4
1104		1622
…		…
1107	package cf::map;	1625	package cf::map;
1108		1626
1109	use Fcntl;	1627	use Fcntl;
1110	use Coro::AIO;	1628	use Coro::AIO;
1111		1629
		1630	use overload
		1631	'""' => \&as_string,
		1632	fallback => 1;
		1633
1112	our $MAX_RESET = 3600;	1634	our $MAX_RESET = 3600;
1113	our $DEFAULT_RESET = 3000;	1635	our $DEFAULT_RESET = 3000;
1114		1636
1115	sub generate_random_map {	1637	sub generate_random_map {
1116	my ($path, $rmp) = @_;	1638	my ($self, $rmp) = @_;
1117
1118	# mit "rum" bekleckern, nicht	1639	# mit "rum" bekleckern, nicht
1119	cf::map::_create_random_map	1640	$self->_create_random_map (
1120	$path,
1121	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1641	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1122	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1642	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1123	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1643	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1124	$rmp->{exit_on_final_map},	1644	$rmp->{exit_on_final_map},
1125	$rmp->{xsize}, $rmp->{ysize},	1645	$rmp->{xsize}, $rmp->{ysize},
1126	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1646	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1127	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1647	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1128	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1648	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1129	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1649	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1130	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1650	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1131	(cf::region::find $rmp->{region})	1651	(cf::region::find $rmp->{region}), $rmp->{custom}
		1652	)
		1653	}
		1654
		1655	=item cf::map->register ($regex, $prio)
		1656
		1657	Register a handler for the map path matching the given regex at the
		1658	givne priority (higher is better, built-in handlers have priority 0, the
		1659	default).
		1660
		1661	=cut
		1662
		1663	sub register {
		1664	my (undef, $regex, $prio) = @_;
		1665	my $pkg = caller;
		1666
		1667	no strict;
		1668	push @{"$pkg\::ISA"}, __PACKAGE__;
		1669
		1670	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1671	}
		1672
		1673	# also paths starting with '/'
		1674	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1675
		1676	sub thawer_merge {
		1677	my ($self, $merge) = @_;
		1678
		1679	# we have to keep some variables in memory intact
		1680	local $self->{path};
		1681	local $self->{load_path};
		1682
		1683	$self->SUPER::thawer_merge ($merge);
		1684	}
		1685
		1686	sub normalise {
		1687	my ($path, $base) = @_;
		1688
		1689	$path = "$path"; # make sure its a string
		1690
		1691	$path =~ s/\.map$//;
		1692
		1693	# map plan:
		1694	#
		1695	# /! non-realised random map exit (special hack!)
		1696	# {... are special paths that are not being touched
		1697	# ?xxx/... are special absolute paths
		1698	# ?random/... random maps
		1699	# /... normal maps
		1700	# ~user/... per-player map of a specific user
		1701
		1702	$path =~ s/$PATH_SEP/\//go;
		1703
		1704	# treat it as relative path if it starts with
		1705	# something that looks reasonable
		1706	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1707	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1708
		1709	$base =~ s{[^/]+/?$}{};
		1710	$path = "$base/$path";
		1711	}
		1712
		1713	for ($path) {
		1714	redo if s{//}{/};
		1715	redo if s{/\.?/}{/};
		1716	redo if s{/[^/]+/\.\./}{/};
		1717	}
		1718
		1719	$path
		1720	}
		1721
		1722	sub new_from_path {
		1723	my (undef, $path, $base) = @_;
		1724
		1725	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1726
		1727	$path = normalise $path, $base;
		1728
		1729	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1730	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1731	my $self = bless cf::map::new, $pkg;
		1732	$self->{path} = $path; $self->path ($path);
		1733	$self->init; # pass $1 etc.
		1734	return $self;
		1735	}
		1736	}
		1737
		1738	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1739	()
		1740	}
		1741
		1742	sub init {
		1743	my ($self) = @_;
		1744
		1745	$self
		1746	}
		1747
		1748	sub as_string {
		1749	my ($self) = @_;
		1750
		1751	"$self->{path}"
		1752	}
		1753
		1754	# the displayed name, this is a one way mapping
		1755	sub visible_name {
		1756	&as_string
		1757	}
		1758
		1759	# the original (read-only) location
		1760	sub load_path {
		1761	my ($self) = @_;
		1762
		1763	"$MAPDIR/$self->{path}.map"
		1764	}
		1765
		1766	# the temporary/swap location
		1767	sub save_path {
		1768	my ($self) = @_;
		1769
		1770	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1771	"$TMPDIR/$path.map"
		1772	}
		1773
		1774	# the unique path, undef == no special unique path
		1775	sub uniq_path {
		1776	my ($self) = @_;
		1777
		1778	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1779	"$UNIQUEDIR/$path"
1132	}	1780	}
1133		1781
1134	# and all this just because we cannot iterate over	1782	# and all this just because we cannot iterate over
1135	# all maps in C++...	1783	# all maps in C++...
1136	sub change_all_map_light {	1784	sub change_all_map_light {
…		…
1138		1786
1139	$_->change_map_light ($change)	1787	$_->change_map_light ($change)
1140	for grep $_->outdoor, values %cf::MAP;	1788	for grep $_->outdoor, values %cf::MAP;
1141	}	1789	}
1142		1790
		1791	sub decay_objects {
		1792	my ($self) = @_;
		1793
		1794	return if $self->{deny_reset};
		1795
		1796	$self->do_decay_objects;
		1797	}
		1798
		1799	sub unlink_save {
		1800	my ($self) = @_;
		1801
		1802	utf8::encode (my $save = $self->save_path);
		1803	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1804	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1805	}
		1806
1143	sub try_load_header($) {	1807	sub load_header_from($) {
1144	my ($path) = @_;	1808	my ($self, $path) = @_;
1145		1809
1146	utf8::encode $path;	1810	utf8::encode $path;
1147	aio_open $path, O_RDONLY, 0	1811	my $f = new_from_file cf::object::thawer $path
1148	or return;	1812	or return;
1149		1813
1150	my $map = cf::map::new	1814	$self->_load_header ($f)
1151	or return;	1815	or return;
1152		1816
1153	# for better error messages only, will be overwritten	1817	local $MAP_LOADING{$self->{path}} = $self;
1154	$map->path ($path);	1818	$f->resolve_delayed_derefs;
1155		1819
1156	$map->load_header ($path)	1820	$self->{load_path} = $path;
		1821
		1822	1
		1823	}
		1824
		1825	sub load_header_orig {
		1826	my ($self) = @_;
		1827
		1828	$self->load_header_from ($self->load_path)
		1829	}
		1830
		1831	sub load_header_temp {
		1832	my ($self) = @_;
		1833
		1834	$self->load_header_from ($self->save_path)
		1835	}
		1836
		1837	sub prepare_temp {
		1838	my ($self) = @_;
		1839
		1840	$self->last_access ((delete $self->{last_access})
		1841	|| $cf::RUNTIME); #d#
		1842	# safety
		1843	$self->{instantiate_time} = $cf::RUNTIME
		1844	if $self->{instantiate_time} > $cf::RUNTIME;
		1845	}
		1846
		1847	sub prepare_orig {
		1848	my ($self) = @_;
		1849
		1850	$self->{load_original} = 1;
		1851	$self->{instantiate_time} = $cf::RUNTIME;
		1852	$self->last_access ($cf::RUNTIME);
		1853	$self->instantiate;
		1854	}
		1855
		1856	sub load_header {
		1857	my ($self) = @_;
		1858
		1859	if ($self->load_header_temp) {
		1860	$self->prepare_temp;
		1861	} else {
		1862	$self->load_header_orig
1157	or return;	1863	or return;
		1864	$self->prepare_orig;
		1865	}
1158		1866
1159	$map->{load_path} = $path;	1867	$self->{deny_reset} = 1
		1868	if $self->no_reset;
1160		1869
1161	$map	1870	$self->default_region (cf::region::find_by_path $self->{path})
		1871	unless $self->default_region;
		1872
		1873	1
1162	}	1874	}
1163		1875
1164	sub find;	1876	sub find;
1165	sub find {	1877	sub find {
1166	my ($path, $origin) = @_;	1878	my ($path, $origin) = @_;
1167		1879
1168	#warn "find<$path,$origin>\n";#d#
1169
1170	$path = new cf::path $path, $origin && $origin->path;	1880	$path = normalise $path, $origin && $origin->path;
1171	my $key = $path->as_string;
1172		1881
		1882	cf::lock_wait "map_data:$path";#d#remove
1173	cf::lock_wait "map_find:$key";	1883	cf::lock_wait "map_find:$path";
1174		1884
1175	$cf::MAP{$key} || do {	1885	$cf::MAP{$path} || do {
1176	my $guard = cf::lock_acquire "map_find:$key";	1886	my $guard1 = cf::lock_acquire "map_find:$path";
		1887	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1177		1888
1178	# do it the slow way	1889	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;	1890	or return;
1197		1891
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;	1892	$map->{last_save} = $cf::RUNTIME;
1210		1893
1211	Coro::cede;	1894	$map->load_header
		1895	or return;
1212		1896
1213	if ($map->should_reset) {	1897	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1898	# doing this can freeze the server in a sync job, obviously
		1899	#$cf::WAIT_FOR_TICK->wait;
		1900	undef $guard1;
		1901	undef $guard2;
1214	$map->reset;	1902	$map->reset;
1215	undef $guard;
1216	$map = find $path	1903	return find $path;
1217	or return;
1218	}	1904	}
1219		1905
1220	$cf::MAP{$key} = $map	1906	$cf::MAP{$path} = $map
1221	}	1907	}
1222	}	1908	}
		1909
		1910	sub pre_load { }
		1911	sub post_load { }
1223		1912
1224	sub load {	1913	sub load {
1225	my ($self) = @_;	1914	my ($self) = @_;
1226		1915
		1916	local $self->{deny_reset} = 1; # loading can take a long time
		1917
1227	my $path = $self->{path};	1918	my $path = $self->{path};
		1919
		1920	{
1228	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1921	my $guard = cf::lock_acquire "map_data:$path";
1229		1922
		1923	return unless $self->valid;
1230	return if $self->in_memory != cf::MAP_SWAPPED;	1924	return unless $self->in_memory == cf::MAP_SWAPPED;
1231		1925
1232	$self->in_memory (cf::MAP_LOADING);	1926	$self->in_memory (cf::MAP_LOADING);
1233		1927
1234	$self->alloc;	1928	$self->alloc;
1235	$self->load_objects ($self->{load_path}, 1)	1929
		1930	$self->pre_load;
		1931	cf::cede_to_tick;
		1932
		1933	my $f = new_from_file cf::object::thawer $self->{load_path};
		1934	$f->skip_block;
		1935	$self->_load_objects ($f)
1236	or return;	1936	or return;
1237		1937
1238	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1938	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1239	if delete $self->{load_original};	1939	if delete $self->{load_original};
1240		1940
1241	if (my $uniq = $path->uniq_path) {	1941	if (my $uniq = $self->uniq_path) {
1242	utf8::encode $uniq;	1942	utf8::encode $uniq;
1243	if (aio_open $uniq, O_RDONLY, 0) {	1943	unless (aio_stat $uniq) {
		1944	if (my $f = new_from_file cf::object::thawer $uniq) {
1244	$self->clear_unique_items;	1945	$self->clear_unique_items;
1245	$self->load_objects ($uniq, 0);	1946	$self->_load_objects ($f);
		1947	$f->resolve_delayed_derefs;
		1948	}
1246	}	1949	}
1247	}	1950	}
1248		1951
1249	Coro::cede;	1952	$f->resolve_delayed_derefs;
1250		1953
		1954	cf::cede_to_tick;
1251	# now do the right thing for maps	1955	# now do the right thing for maps
1252	$self->link_multipart_objects;	1956	$self->link_multipart_objects;
1253
1254	if ($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)	1957	$self->difficulty ($self->estimate_difficulty)
1263	unless $self->difficulty;	1958	unless $self->difficulty;
		1959	cf::cede_to_tick;
		1960
		1961	unless ($self->{deny_activate}) {
		1962	$self->decay_objects;
		1963	$self->fix_auto_apply;
		1964	$self->update_buttons;
		1965	cf::cede_to_tick;
		1966	$self->set_darkness_map;
		1967	cf::cede_to_tick;
1264	$self->activate;	1968	$self->activate;
1265	}	1969	}
1266		1970
1267	Coro::cede;	1971	$self->{last_save} = $cf::RUNTIME;
		1972	$self->last_access ($cf::RUNTIME);
1268		1973
1269	$self->in_memory (cf::MAP_IN_MEMORY);	1974	$self->in_memory (cf::MAP_IN_MEMORY);
		1975	}
		1976
		1977	$self->post_load;
		1978	}
		1979
		1980	sub customise_for {
		1981	my ($self, $ob) = @_;
		1982
		1983	return find "~" . $ob->name . "/" . $self->{path}
		1984	if $self->per_player;
		1985
		1986	# return find "?party/" . $ob->name . "/" . $self->{path}
		1987	# if $self->per_party;
		1988
		1989	$self
		1990	}
		1991
		1992	# find and load all maps in the 3x3 area around a map
		1993	sub load_neighbours {
		1994	my ($map) = @_;
		1995
		1996	my @neigh; # diagonal neighbours
		1997
		1998	for (0 .. 3) {
		1999	my $neigh = $map->tile_path ($_)
		2000	or next;
		2001	$neigh = find $neigh, $map
		2002	or next;
		2003	$neigh->load;
		2004
		2005	push @neigh,
		2006	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2007	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2008	}
		2009
		2010	for (grep defined $_->[0], @neigh) {
		2011	my ($path, $origin) = @$_;
		2012	my $neigh = find $path, $origin
		2013	or next;
		2014	$neigh->load;
		2015	}
1270	}	2016	}
1271		2017
1272	sub find_sync {	2018	sub find_sync {
1273	my ($path, $origin) = @_;	2019	my ($path, $origin) = @_;
1274		2020
1275	cf::sync_job {	2021	cf::sync_job { find $path, $origin }
1276	my $map = cf::map::find $path, $origin;
1277	$map
1278	}
1279	}	2022	}
1280		2023
1281	sub do_load_sync {	2024	sub do_load_sync {
1282	my ($map) = @_;	2025	my ($map) = @_;
1283		2026
		2027	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2028	if $Coro::current == $Coro::main;
		2029
1284	cf::sync_job { $map->load };	2030	cf::sync_job { $map->load };
		2031	}
		2032
		2033	our %MAP_PREFETCH;
		2034	our $MAP_PREFETCHER = undef;
		2035
		2036	sub find_async {
		2037	my ($path, $origin, $load) = @_;
		2038
		2039	$path = normalise $path, $origin && $origin->{path};
		2040
		2041	if (my $map = $cf::MAP{$path}) {
		2042	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2043	}
		2044
		2045	$MAP_PREFETCH{$path} |= $load;
		2046
		2047	$MAP_PREFETCHER ||= cf::async {
		2048	while (%MAP_PREFETCH) {
		2049	while (my ($k, $v) = each %MAP_PREFETCH) {
		2050	if (my $map = find $k) {
		2051	$map->load if $v;
		2052	}
		2053
		2054	delete $MAP_PREFETCH{$k};
		2055	}
		2056	}
		2057	undef $MAP_PREFETCHER;
		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	$_->contr->save for $self->players;
		2084	};
		2085
1305	if ($uniq) {	2086	if ($uniq) {
1306	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2087	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1307	$self->save_objects ($uniq, cf::IO_UNIQUES);	2088	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1308	} else {	2089	} else {
1309	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2090	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1310	}	2091	}
1311	}	2092	}
1312		2093
1313	sub swap_out {	2094	sub swap_out {
1314	my ($self) = @_;	2095	my ($self) = @_;
1315		2096
1316	# save first because save cedes	2097	# save first because save cedes
1317	$self->save;	2098	$self->save;
1318		2099
1319	my $lock = cf::lock_acquire "map_data:" . $self->path;	2100	my $lock = cf::lock_acquire "map_data:$self->{path}";
1320		2101
1321	return if $self->players;	2102	return if $self->players;
1322	return if $self->in_memory != cf::MAP_IN_MEMORY;	2103	return if $self->in_memory != cf::MAP_IN_MEMORY;
1323	return if $self->{deny_save};	2104	return if $self->{deny_save};
1324		2105
		2106	$self->in_memory (cf::MAP_SWAPPED);
		2107
		2108	$self->deactivate;
		2109	$_->clear_links_to ($self) for values %cf::MAP;
1325	$self->clear;	2110	$self->clear;
1326	$self->in_memory (cf::MAP_SWAPPED);
1327	}	2111	}
1328		2112
1329	sub reset_at {	2113	sub reset_at {
1330	my ($self) = @_;	2114	my ($self) = @_;
1331		2115
1332	# TODO: safety, remove and allow resettable per-player maps	2116	# TODO: safety, remove and allow resettable per-player maps
1333	return 1e99 if $self->{path}{user_rel};
1334	return 1e99 if $self->{deny_reset};	2117	return 1e99 if $self->{deny_reset};
1335		2118
1336	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2119	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1337	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2120	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1338		2121
…		…
1343	my ($self) = @_;	2126	my ($self) = @_;
1344		2127
1345	$self->reset_at <= $cf::RUNTIME	2128	$self->reset_at <= $cf::RUNTIME
1346	}	2129	}
1347		2130
1348	sub unlink_save {
1349	my ($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	$self->save;
1367	}
1368
1369	sub reset {	2131	sub reset {
1370	my ($self) = @_;	2132	my ($self) = @_;
1371		2133
1372	my $lock = cf::lock_acquire "map_data:" . $self->path;	2134	my $lock = cf::lock_acquire "map_data:$self->{path}";
1373		2135
1374	return if $self->players;	2136	return if $self->players;
1375	return if $self->{path}{user_rel};#d#
1376		2137
1377	warn "resetting map ", $self->path;#d#	2138	warn "resetting map ", $self->path;
		2139
		2140	$self->in_memory (cf::MAP_SWAPPED);
		2141
		2142	# need to save uniques path
		2143	unless ($self->{deny_save}) {
		2144	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2145
		2146	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2147	if $uniq;
		2148	}
1378		2149
1379	delete $cf::MAP{$self->path};	2150	delete $cf::MAP{$self->path};
1380		2151
		2152	$self->deactivate;
1381	$_->clear_links_to ($self) for values %cf::MAP;	2153	$_->clear_links_to ($self) for values %cf::MAP;
		2154	$self->clear;
1382		2155
1383	$self->unlink_save;	2156	$self->unlink_save;
1384	$self->destroy;	2157	$self->destroy;
1385	}	2158	}
1386		2159
1387	my $nuke_counter = "aaaa";	2160	my $nuke_counter = "aaaa";
1388		2161
1389	sub nuke {	2162	sub nuke {
1390	my ($self) = @_;	2163	my ($self) = @_;
1391		2164
		2165	{
		2166	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2167
		2168	delete $cf::MAP{$self->path};
		2169
		2170	$self->unlink_save;
		2171
		2172	bless $self, "cf::map";
		2173	delete $self->{deny_reset};
1392	$self->{deny_save} = 1;	2174	$self->{deny_save} = 1;
1393	$self->reset_timeout (1);	2175	$self->reset_timeout (1);
1394	$self->rename ("{nuke}/" . ($nuke_counter++));	2176	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2177
		2178	$cf::MAP{$self->path} = $self;
		2179	}
		2180
1395	$self->reset; # polite request, might not happen	2181	$self->reset; # polite request, might not happen
1396	}	2182	}
1397		2183
1398	sub customise_for {	2184	=item $maps = cf::map::tmp_maps
1399	my ($map, $ob) = @_;
1400		2185
1401	if ($map->per_player) {	2186	Returns an arrayref with all map paths of currently instantiated and saved
1402	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2187	maps. May block.
		2188
		2189	=cut
		2190
		2191	sub tmp_maps() {
1403	}	2192	[
1404		2193	map {
1405	$map	2194	utf8::decode $_;
		2195	/\.map$/
		2196	? normalise $_
		2197	: ()
		2198	} @{ aio_readdir $TMPDIR or [] }
		2199	]
1406	}	2200	}
1407		2201
1408	sub emergency_save {	2202	=item $maps = cf::map::random_maps
1409	my $freeze_guard = cf::freeze_mainloop;
1410		2203
1411	warn "enter emergency map save\n";	2204	Returns an arrayref with all map paths of currently instantiated and saved
		2205	random maps. May block.
1412		2206
1413	cf::sync_job {	2207	=cut
1414	warn "begin emergency map save\n";
1415	$_->save for values %cf::MAP;
1416	};
1417		2208
1418	warn "end emergency map save\n";	2209	sub random_maps() {
		2210	[
		2211	map {
		2212	utf8::decode $_;
		2213	/\.map$/
		2214	? normalise "?random/$_"
		2215	: ()
		2216	} @{ aio_readdir $RANDOMDIR or [] }
		2217	]
		2218	}
		2219
		2220	=item cf::map::unique_maps
		2221
		2222	Returns an arrayref of paths of all shared maps that have
		2223	instantiated unique items. May block.
		2224
		2225	=cut
		2226
		2227	sub unique_maps() {
		2228	[
		2229	map {
		2230	utf8::decode $_;
		2231	/\.map$/
		2232	? normalise $_
		2233	: ()
		2234	} @{ aio_readdir $UNIQUEDIR or [] }
		2235	]
1419	}	2236	}
1420		2237
1421	package cf;	2238	package cf;
1422		2239
1423	=back	2240	=back
1424		2241
		2242	=head3 cf::object
		2243
		2244	=cut
		2245
		2246	package cf::object;
		2247
		2248	=over 4
		2249
		2250	=item $ob->inv_recursive
		2251
		2252	Returns the inventory of the object _and_ their inventories, recursively.
		2253
		2254	=cut
		2255
		2256	sub inv_recursive_;
		2257	sub inv_recursive_ {
		2258	map { $_, inv_recursive_ $_->inv } @_
		2259	}
		2260
		2261	sub inv_recursive {
		2262	inv_recursive_ inv $_[0]
		2263	}
		2264
		2265	=item $ref = $ob->ref
		2266
		2267	creates and returns a persistent reference to an objetc that can be stored as a string.
		2268
		2269	=item $ob = cf::object::deref ($refstring)
		2270
		2271	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2272	even if the object actually exists. May block.
		2273
		2274	=cut
		2275
		2276	sub deref {
		2277	my ($ref) = @_;
		2278
		2279	# temporary compatibility#TODO#remove
		2280	$ref =~ s{^<}{player/<};
		2281
		2282	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2283	my ($uuid, $name) = ($1, $2);
		2284	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2285	or return;
		2286	$pl->ob->uuid eq $uuid
		2287	or return;
		2288
		2289	$pl->ob
		2290	} else {
		2291	warn "$ref: cannot resolve object reference\n";
		2292	undef
		2293	}
		2294	}
		2295
		2296	package cf;
		2297
		2298	=back
1425		2299
1426	=head3 cf::object::player	2300	=head3 cf::object::player
1427		2301
1428	=over 4	2302	=over 4
1429		2303
…		…
1443		2317
1444	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2318	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1445		2319
1446	if ($self->{record_replies}) {	2320	if ($self->{record_replies}) {
1447	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2321	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2322
1448	} else {	2323	} else {
		2324	my $pl = $self->contr;
		2325
		2326	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2327	my $dialog = $pl->{npc_dialog};
		2328	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2329
		2330	} else {
1449	$msg = $npc->name . " says: $msg" if $npc;	2331	$msg = $npc->name . " says: $msg" if $npc;
1450	$self->message ($msg, $flags);	2332	$self->message ($msg, $flags);
		2333	}
1451	}	2334	}
		2335	}
		2336
		2337	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2338
		2339	=cut
		2340
		2341	sub cf::object::send_msg {
		2342	my $pl = shift->contr
		2343	or return;
		2344	$pl->send_msg (@_);
1452	}	2345	}
1453		2346
1454	=item $player_object->may ("access")	2347	=item $player_object->may ("access")
1455		2348
1456	Returns wether the given player is authorized to access resource "access"	2349	Returns wether the given player is authorized to access resource "access"
…		…
1469		2362
1470	=item $player_object->enter_link	2363	=item $player_object->enter_link
1471		2364
1472	Freezes the player and moves him/her to a special map (C<{link}>).	2365	Freezes the player and moves him/her to a special map (C<{link}>).
1473		2366
1474	The player should be reaosnably safe there for short amounts of time. You	2367	The player should be reasonably safe there for short amounts of time. You
1475	I<MUST> call C<leave_link> as soon as possible, though.	2368	I<MUST> call C<leave_link> as soon as possible, though.
1476		2369
		2370	Will never block.
		2371
1477	=item $player_object->leave_link ($map, $x, $y)	2372	=item $player_object->leave_link ($map, $x, $y)
1478		2373
1479	Moves the player out of the specila link map onto the given map. If the	2374	Moves the player out of the special C<{link}> map onto the specified
1480	map is not valid (or omitted), the player will be moved back to the	2375	map. If the map is not valid (or omitted), the player will be moved back
1481	location he/she was before the call to C<enter_link>, or, if that fails,	2376	to the location he/she was before the call to C<enter_link>, or, if that
1482	to the emergency map position.	2377	fails, to the emergency map position.
1483		2378
1484	Might block.	2379	Might block.
1485		2380
1486	=cut	2381	=cut
		2382
		2383	sub link_map {
		2384	unless ($LINK_MAP) {
		2385	$LINK_MAP = cf::map::find "{link}"
		2386	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2387	$LINK_MAP->load;
		2388	}
		2389
		2390	$LINK_MAP
		2391	}
1487		2392
1488	sub cf::object::player::enter_link {	2393	sub cf::object::player::enter_link {
1489	my ($self) = @_;	2394	my ($self) = @_;
1490		2395
1491	$self->deactivate_recursive;	2396	$self->deactivate_recursive;
1492		2397
1493	return if $self->map == $LINK_MAP;	2398	return if UNIVERSAL::isa $self->map, "ext::map_link";
1494		2399
1495	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2400	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1496	if $self->map;	2401	if $self->map && $self->map->{path} ne "{link}";
1497		2402
1498	$self->enter_map ($LINK_MAP, 20, 20);	2403	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1499	}	2404	}
1500		2405
1501	sub cf::object::player::leave_link {	2406	sub cf::object::player::leave_link {
1502	my ($self, $map, $x, $y) = @_;	2407	my ($self, $map, $x, $y) = @_;
		2408
		2409	return unless $self->contr->active;
1503		2410
1504	my $link_pos = delete $self->{_link_pos};	2411	my $link_pos = delete $self->{_link_pos};
1505		2412
1506	unless ($map) {	2413	unless ($map) {
1507	# restore original map position	2414	# restore original map position
…		…
1521	# use -1 or undef as default coordinates, not 0, 0	2428	# use -1 or undef as default coordinates, not 0, 0
1522	($x, $y) = ($map->enter_x, $map->enter_y)	2429	($x, $y) = ($map->enter_x, $map->enter_y)
1523	if $x <=0 && $y <= 0;	2430	if $x <=0 && $y <= 0;
1524		2431
1525	$map->load;	2432	$map->load;
		2433	$map->load_neighbours;
1526		2434
		2435	return unless $self->contr->active;
1527	$self->activate_recursive;	2436	$self->activate_recursive;
		2437
		2438	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1528	$self->enter_map ($map, $x, $y);	2439	$self->enter_map ($map, $x, $y);
1529	}	2440	}
1530		2441
1531	cf::player->attach (	2442	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1532	on_logout => sub {
1533	my ($pl) = @_;
1534		2443
1535	# abort map switching before logout	2444	Moves the player to the given map-path and coordinates by first freezing
1536	if ($pl->ob->{_link_pos}) {	2445	her, loading and preparing them map, calling the provided $check callback
1537	cf::sync_job {	2446	that has to return the map if sucecssful, and then unfreezes the player on
1538	$pl->ob->leave_link	2447	the new (success) or old (failed) map position. In either case, $done will
1539	};	2448	be called at the end of this process.
1540	}
1541	},
1542	on_login => sub {
1543	my ($pl) = @_;
1544		2449
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	2450	=cut
		2451
		2452	our $GOTOGEN;
1563		2453
1564	sub cf::object::player::goto {	2454	sub cf::object::player::goto {
1565	my ($self, $path, $x, $y) = @_;	2455	my ($self, $path, $x, $y, $check, $done) = @_;
		2456
		2457	# do generation counting so two concurrent goto's will be executed in-order
		2458	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1566		2459
1567	$self->enter_link;	2460	$self->enter_link;
1568		2461
1569	(Coro::async_pool {	2462	(async {
1570	$path = new cf::path $path;	2463	my $map = eval {
1571
1572	my $map = cf::map::find $path->as_string;	2464	my $map = cf::map::find $path;
		2465
		2466	if ($map) {
1573	$map = $map->customise_for ($self) if $map;	2467	$map = $map->customise_for ($self);
1574		2468	$map = $check->($map) if $check && $map;
1575	# warn "entering ", $map->path, " at ($x, $y)\n"	2469	} else {
1576	# if $map;
1577
1578	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2470	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2471	}
1579		2472
		2473	$map
		2474	};
		2475
		2476	if ($@) {
		2477	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2478	LOG llevError | logBacktrace, Carp::longmess $@;
		2479	}
		2480
		2481	if ($gen == $self->{_goto_generation}) {
		2482	delete $self->{_goto_generation};
1580	$self->leave_link ($map, $x, $y);	2483	$self->leave_link ($map, $x, $y);
		2484	}
		2485
		2486	$done->() if $done;
1581	})->prio (1);	2487	})->prio (1);
1582	}	2488	}
1583		2489
1584	=item $player_object->enter_exit ($exit_object)	2490	=item $player_object->enter_exit ($exit_object)
1585		2491
…		…
1587		2493
1588	sub parse_random_map_params {	2494	sub parse_random_map_params {
1589	my ($spec) = @_;	2495	my ($spec) = @_;
1590		2496
1591	my $rmp = { # defaults	2497	my $rmp = { # defaults
1592	xsize => 10,	2498	xsize => (cf::rndm 15, 40),
1593	ysize => 10,	2499	ysize => (cf::rndm 15, 40),
		2500	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2501	#layout => string,
1594	};	2502	};
1595		2503
1596	for (split /\n/, $spec) {	2504	for (split /\n/, $spec) {
1597	my ($k, $v) = split /\s+/, $_, 2;	2505	my ($k, $v) = split /\s+/, $_, 2;
1598		2506
…		…
1602	$rmp	2510	$rmp
1603	}	2511	}
1604		2512
1605	sub prepare_random_map {	2513	sub prepare_random_map {
1606	my ($exit) = @_;	2514	my ($exit) = @_;
		2515
		2516	my $guard = cf::lock_acquire "exit_prepare:$exit";
1607		2517
1608	# all this does is basically replace the /! path by	2518	# all this does is basically replace the /! path by
1609	# a new random map path (?random/...) with a seed	2519	# a new random map path (?random/...) with a seed
1610	# that depends on the exit object	2520	# that depends on the exit object
1611		2521
1612	my $rmp = parse_random_map_params $exit->msg;	2522	my $rmp = parse_random_map_params $exit->msg;
1613		2523
1614	if ($exit->map) {	2524	if ($exit->map) {
1615	$rmp->{region} = $exit->map->region_name;	2525	$rmp->{region} = $exit->region->name;
1616	$rmp->{origin_map} = $exit->map->path;	2526	$rmp->{origin_map} = $exit->map->path;
1617	$rmp->{origin_x} = $exit->x;	2527	$rmp->{origin_x} = $exit->x;
1618	$rmp->{origin_y} = $exit->y;	2528	$rmp->{origin_y} = $exit->y;
1619	}	2529	}
1620		2530
1621	$rmp->{random_seed} ||= $exit->random_seed;	2531	$rmp->{random_seed} ||= $exit->random_seed;
1622		2532
1623	my $data = cf::to_json $rmp;	2533	my $data = cf::to_json $rmp;
1624	my $md5 = Digest::MD5::md5_hex $data;	2534	my $md5 = Digest::MD5::md5_hex $data;
		2535	my $meta = "$RANDOMDIR/$md5.meta";
1625		2536
1626	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2537	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1627	aio_write $fh, 0, (length $data), $data, 0;	2538	aio_write $fh, 0, (length $data), $data, 0;
		2539	undef $fh;
		2540	aio_rename "$meta~", $meta;
1628		2541
1629	$exit->slaying ("?random/$md5");	2542	$exit->slaying ("?random/$md5");
1630	$exit->msg (undef);	2543	$exit->msg (undef);
1631	}	2544	}
1632	}	2545	}
…		…
1634	sub cf::object::player::enter_exit {	2547	sub cf::object::player::enter_exit {
1635	my ($self, $exit) = @_;	2548	my ($self, $exit) = @_;
1636		2549
1637	return unless $self->type == cf::PLAYER;	2550	return unless $self->type == cf::PLAYER;
1638		2551
		2552	if ($exit->slaying eq "/!") {
		2553	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2554	# the problem is that $exit might not survive long enough
		2555	# so it needs to be done right now, right here
		2556	cf::sync_job { prepare_random_map $exit };
		2557	}
		2558
		2559	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2560	my $hp = $exit->stats->hp;
		2561	my $sp = $exit->stats->sp;
		2562
1639	$self->enter_link;	2563	$self->enter_link;
1640		2564
1641	(Coro::async_pool {	2565	# if exit is damned, update players death & WoR home-position
		2566	$self->contr->savebed ($slaying, $hp, $sp)
		2567	if $exit->flag (FLAG_DAMNED);
		2568
		2569	(async {
1642	$self->deactivate_recursive; # just to be sure	2570	$self->deactivate_recursive; # just to be sure
1643	unless (eval {	2571	unless (eval {
1644	prepare_random_map $exit	2572	$self->goto ($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		2573
1650	1;	2574	1;
1651	}) {	2575	}) {
1652	$self->message ("Something went wrong deep within the crossfire server. "	2576	$self->message ("Something went wrong deep within the crossfire server. "
1653	. "I'll try to bring you back to the map you were before. "	2577	. "I'll try to bring you back to the map you were before. "
1654	. "Please report this to the dungeon master",	2578	. "Please report this to the dungeon master!",
1655	cf::NDI_UNIQUE | cf::NDI_RED);	2579	cf::NDI_UNIQUE | cf::NDI_RED);
1656		2580
1657	warn "ERROR in enter_exit: $@";	2581	warn "ERROR in enter_exit: $@";
1658	$self->leave_link;	2582	$self->leave_link;
1659	}	2583	}
1660	})->prio (1);	2584	})->prio (1);
…		…
1673		2597
1674	sub cf::client::send_drawinfo {	2598	sub cf::client::send_drawinfo {
1675	my ($self, $text, $flags) = @_;	2599	my ($self, $text, $flags) = @_;
1676		2600
1677	utf8::encode $text;	2601	utf8::encode $text;
1678	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2602	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1679	}	2603	}
1680		2604
		2605	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2606
		2607	Send a drawinfo or msg packet to the client, formatting the msg for the
		2608	client if neccessary. C<$type> should be a string identifying the type of
		2609	the message, with C<log> being the default. If C<$color> is negative, suppress
		2610	the message unless the client supports the msg packet.
		2611
		2612	=cut
		2613
		2614	our %CHANNEL = (
		2615	"c/identify" => {
		2616	id => "identify",
		2617	title => "Identify",
		2618	reply => undef,
		2619	tooltip => "Items recently identified",
		2620	},
		2621	"c/examine" => {
		2622	id => "examine",
		2623	title => "Examine",
		2624	reply => undef,
		2625	tooltip => "Signs and other items you examined",
		2626	},
		2627	);
		2628
		2629	sub cf::client::send_msg {
		2630	my ($self, $channel, $msg, $color, @extra) = @_;
		2631
		2632	$msg = $self->pl->expand_cfpod ($msg);
		2633
		2634	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2635
		2636	# check predefined channels, for the benefit of C
		2637	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2638
		2639	if (ref $channel) {
		2640	# send meta info to client, if not yet sent
		2641	unless (exists $self->{channel}{$channel->{id}}) {
		2642	$self->{channel}{$channel->{id}} = $channel;
		2643	$self->ext_msg (channel_info => $channel)
		2644	if $self->can_msg;
		2645	}
		2646
		2647	$channel = $channel->{id};
		2648	}
		2649
		2650	return unless @extra || length $msg;
		2651
		2652	if ($self->can_msg) {
		2653	# default colour, mask it out
		2654	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2655	if $color & cf::NDI_DEF;
		2656
		2657	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2658	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2659	} else {
		2660	if ($color >= 0) {
		2661	# replace some tags by gcfclient-compatible ones
		2662	for ($msg) {
		2663	1 while
		2664	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2665	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2666	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2667	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2668	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2669	}
		2670
		2671	$color &= cf::NDI_COLOR_MASK;
		2672
		2673	utf8::encode $msg;
		2674
		2675	if (0 && $msg =~ /\[/) {
		2676	# COMMAND/INFO
		2677	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2678	} else {
		2679	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2680	$self->send_packet ("drawinfo $color $msg")
		2681	}
		2682	}
		2683	}
		2684	}
		2685
		2686	=item $client->ext_msg ($type, @msg)
		2687
		2688	Sends an ext event to the client.
		2689
		2690	=cut
		2691
		2692	sub cf::client::ext_msg($$@) {
		2693	my ($self, $type, @msg) = @_;
		2694
		2695	if ($self->extcmd == 2) {
		2696	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2697	} elsif ($self->extcmd == 1) { # TODO: remove
		2698	push @msg, msgtype => "event_$type";
		2699	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2700	}
		2701	}
		2702
		2703	=item $client->ext_reply ($msgid, @msg)
		2704
		2705	Sends an ext reply to the client.
		2706
		2707	=cut
		2708
		2709	sub cf::client::ext_reply($$@) {
		2710	my ($self, $id, @msg) = @_;
		2711
		2712	if ($self->extcmd == 2) {
		2713	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2714	} elsif ($self->extcmd == 1) {
		2715	#TODO: version 1, remove
		2716	unshift @msg, msgtype => "reply", msgid => $id;
		2717	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2718	}
		2719	}
1681		2720
1682	=item $success = $client->query ($flags, "text", \&cb)	2721	=item $success = $client->query ($flags, "text", \&cb)
1683		2722
1684	Queues a query to the client, calling the given callback with	2723	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>,	2724	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>.	2725	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1687		2726
1688	Queries can fail, so check the return code. Or don't, as queries will become	2727	Queries can fail, so check the return code. Or don't, as queries will
1689	reliable at some point in the future.	2728	become reliable at some point in the future.
1690		2729
1691	=cut	2730	=cut
1692		2731
1693	sub cf::client::query {	2732	sub cf::client::query {
1694	my ($self, $flags, $text, $cb) = @_;	2733	my ($self, $flags, $text, $cb) = @_;
…		…
1702	utf8::encode $text;	2741	utf8::encode $text;
1703	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2742	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1704		2743
1705	$self->send_packet ($self->{query_queue}[0][0])	2744	$self->send_packet ($self->{query_queue}[0][0])
1706	if @{ $self->{query_queue} } == 1;	2745	if @{ $self->{query_queue} } == 1;
		2746
		2747	1
1707	}	2748	}
1708		2749
1709	cf::client->attach (	2750	cf::client->attach (
		2751	on_connect => sub {
		2752	my ($ns) = @_;
		2753
		2754	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2755	},
1710	on_reply => sub {	2756	on_reply => sub {
1711	my ($ns, $msg) = @_;	2757	my ($ns, $msg) = @_;
1712		2758
1713	# this weird shuffling is so that direct followup queries	2759	# this weird shuffling is so that direct followup queries
1714	# get handled first	2760	# get handled first
1715	my $queue = delete $ns->{query_queue}	2761	my $queue = delete $ns->{query_queue}
1716	or return; # be conservative, not sure how that can happen, but we saw a crash here	2762	or return; # be conservative, not sure how that can happen, but we saw a crash here
1717		2763
1718	(shift @$queue)->[1]->($msg);	2764	(shift @$queue)->[1]->($msg);
		2765	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1719		2766
1720	push @{ $ns->{query_queue} }, @$queue;	2767	push @{ $ns->{query_queue} }, @$queue;
1721		2768
1722	if (@{ $ns->{query_queue} } == @$queue) {	2769	if (@{ $ns->{query_queue} } == @$queue) {
1723	if (@$queue) {	2770	if (@$queue) {
…		…
1725	} else {	2772	} else {
1726	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2773	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1727	}	2774	}
1728	}	2775	}
1729	},	2776	},
		2777	on_exticmd => sub {
		2778	my ($ns, $buf) = @_;
		2779
		2780	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2781
		2782	if (ref $msg) {
		2783	my ($type, $reply, @payload) =
		2784	"ARRAY" eq ref $msg
		2785	? @$msg
		2786	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2787
		2788	my @reply;
		2789
		2790	if (my $cb = $EXTICMD{$type}) {
		2791	@reply = $cb->($ns, @payload);
		2792	}
		2793
		2794	$ns->ext_reply ($reply, @reply)
		2795	if $reply;
		2796
		2797	} else {
		2798	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2799	}
		2800
		2801	cf::override;
		2802	},
1730	);	2803	);
1731		2804
1732	=item $client->coro (\&cb)	2805	=item $client->async (\&cb)
1733		2806
1734	Create a new coroutine, running the specified callback. The coroutine will	2807	Create a new coroutine, running the specified callback. The coroutine will
1735	be automatically cancelled when the client gets destroyed (e.g. on logout,	2808	be automatically cancelled when the client gets destroyed (e.g. on logout,
1736	or loss of connection).	2809	or loss of connection).
1737		2810
1738	=cut	2811	=cut
1739		2812
1740	sub cf::client::coro {	2813	sub cf::client::async {
1741	my ($self, $cb) = @_;	2814	my ($self, $cb) = @_;
1742		2815
1743	my $coro = &Coro::async_pool ($cb);	2816	my $coro = &Coro::async ($cb);
1744		2817
1745	$coro->on_destroy (sub {	2818	$coro->on_destroy (sub {
1746	delete $self->{_coro}{$coro+0};	2819	delete $self->{_coro}{$coro+0};
1747	});	2820	});
1748		2821
…		…
1775	our $safe = new Safe "safe";	2848	our $safe = new Safe "safe";
1776	our $safe_hole = new Safe::Hole;	2849	our $safe_hole = new Safe::Hole;
1777		2850
1778	$SIG{FPE} = 'IGNORE';	2851	$SIG{FPE} = 'IGNORE';
1779		2852
1780	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2853	$safe->permit_only (Opcode::opset qw(
		2854	:base_core :base_mem :base_orig :base_math
		2855	grepstart grepwhile mapstart mapwhile
		2856	sort time
		2857	));
1781		2858
1782	# here we export the classes and methods available to script code	2859	# here we export the classes and methods available to script code
1783		2860
1784	=pod	2861	=pod
1785		2862
1786	The following fucntions and emthods are available within a safe environment:	2863	The following functions and methods are available within a safe environment:
1787		2864
1788	cf::object contr pay_amount pay_player map	2865	cf::object
		2866	contr pay_amount pay_player map x y force_find force_add
		2867	insert remove name archname title slaying race decrease_ob_nr
		2868
1789	cf::object::player player	2869	cf::object::player
1790	cf::player peaceful	2870	player
1791	cf::map trigger	2871
		2872	cf::player
		2873	peaceful
		2874
		2875	cf::map
		2876	trigger
1792		2877
1793	=cut	2878	=cut
1794		2879
1795	for (	2880	for (
1796	["cf::object" => qw(contr pay_amount pay_player map)],	2881	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2882	insert remove inv name archname title slaying race
		2883	decrease_ob_nr)],
1797	["cf::object::player" => qw(player)],	2884	["cf::object::player" => qw(player)],
1798	["cf::player" => qw(peaceful)],	2885	["cf::player" => qw(peaceful)],
1799	["cf::map" => qw(trigger)],	2886	["cf::map" => qw(trigger)],
1800	) {	2887	) {
1801	no strict 'refs';	2888	no strict 'refs';
…		…
1872	=back	2959	=back
1873		2960
1874	=cut	2961	=cut
1875		2962
1876	#############################################################################	2963	#############################################################################
		2964	# the server's init and main functions
1877		2965
1878	=head2 EXTENSION DATABASE SUPPORT	2966	sub load_facedata($) {
		2967	my ($path) = @_;
1879		2968
1880	Crossfire maintains a very simple database for extension use. It can	2969	# HACK to clear player env face cache, we need some signal framework
1881	currently store anything that can be serialised using Storable, which	2970	# for this (global event?)
1882	excludes objects.	2971	%ext::player_env::MUSIC_FACE_CACHE = ();
1883		2972
1884	The parameter C<$family> should best start with the name of the extension	2973	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1885	using it, it should be unique.
1886		2974
1887	=over 4	2975	warn "loading facedata from $path\n";
1888		2976
1889	=item $hashref = cf::db_get $family	2977	my $facedata;
		2978	0 < aio_load $path, $facedata
		2979	or die "$path: $!";
1890		2980
1891	Return a hashref for use by the extension C<$family>, which can be	2981	$facedata = Coro::Storable::thaw $facedata;
1892	modified. After modifications, you have to call C<cf::db_dirty> or
1893	C<cf::db_sync>.
1894		2982
1895	=item $value = cf::db_get $family => $key	2983	$facedata->{version} == 2
		2984	or cf::cleanup "$path: version mismatch, cannot proceed.";
1896		2985
1897	Returns a single value from the database	2986	# patch in the exptable
1898		2987	$facedata->{resource}{"res/exp_table"} = {
1899	=item cf::db_put $family => $hashref	2988	type => FT_RSRC,
1900		2989	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	});	2990	};
		2991	cf::cede_to_tick;
1950		2992
1951	sub db_dirty() {
1952	$dirty = 1;
1953	$idle->start;
1954	}	2993	{
		2994	my $faces = $facedata->{faceinfo};
1955		2995
1956	sub db_get($;$) {	2996	while (my ($face, $info) = each %$faces) {
1957	@_ >= 2	2997	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1958	? $DB->{$_[0]}{$_[1]}	2998	cf::face::set_visibility $idx, $info->{visibility};
1959	: ($DB->{$_[0]} ||= { })	2999	cf::face::set_magicmap $idx, $info->{magicmap};
1960	}	3000	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3001	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1961		3002
1962	sub db_put($$;$) {	3003	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	},	3004	}
1976	);
1977	}
1978		3005
1979	#############################################################################	3006	while (my ($face, $info) = each %$faces) {
1980	# the server's main()	3007	next unless $info->{smooth};
		3008	my $idx = cf::face::find $face
		3009	or next;
		3010	if (my $smooth = cf::face::find $info->{smooth}) {
		3011	cf::face::set_smooth $idx, $smooth;
		3012	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3013	} else {
		3014	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3015	}
1981		3016
1982	sub cfg_load {	3017	cf::cede_to_tick;
		3018	}
		3019	}
		3020
		3021	{
		3022	my $anims = $facedata->{animinfo};
		3023
		3024	while (my ($anim, $info) = each %$anims) {
		3025	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3026	cf::cede_to_tick;
		3027	}
		3028
		3029	cf::anim::invalidate_all; # d'oh
		3030	}
		3031
		3032	{
		3033	# TODO: for gcfclient pleasure, we should give resources
		3034	# that gcfclient doesn't grok a >10000 face index.
		3035	my $res = $facedata->{resource};
		3036
		3037	my $soundconf = delete $res->{"res/sound.conf"};
		3038
		3039	while (my ($name, $info) = each %$res) {
		3040	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3041	my $data;
		3042
		3043	if ($info->{type} & 1) {
		3044	# prepend meta info
		3045
		3046	my $meta = $enc->encode ({
		3047	name => $name,
		3048	%{ $info->{meta} || {} },
		3049	});
		3050
		3051	$data = pack "(w/a*)*", $meta, $info->{data};
		3052	} else {
		3053	$data = $info->{data};
		3054	}
		3055
		3056	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3057	cf::face::set_type $idx, $info->{type};
		3058
		3059	cf::cede_to_tick;
		3060	}
		3061
		3062	if ($soundconf) {
		3063	$soundconf = $enc->decode (delete $soundconf->{data});
		3064
		3065	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3066	my $sound = $soundconf->{compat}[$_]
		3067	or next;
		3068
		3069	my $face = cf::face::find "sound/$sound->[1]";
		3070	cf::sound::set $sound->[0] => $face;
		3071	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3072	}
		3073
		3074	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3075	my $face = cf::face::find "sound/$v";
		3076	cf::sound::set $k => $face;
		3077	}
		3078	}
		3079	}
		3080
		3081	1
		3082	}
		3083
		3084	register_exticmd fx_want => sub {
		3085	my ($ns, $want) = @_;
		3086
		3087	while (my ($k, $v) = each %$want) {
		3088	$ns->fx_want ($k, $v);
		3089	}
		3090	};
		3091
		3092	sub reload_regions {
		3093	# HACK to clear player env face cache, we need some signal framework
		3094	# for this (global event?)
		3095	%ext::player_env::MUSIC_FACE_CACHE = ();
		3096
		3097	load_resource_file "$MAPDIR/regions"
		3098	or die "unable to load regions file\n";
		3099
		3100	for (cf::region::list) {
		3101	$_->{match} = qr/$_->{match}/
		3102	if exists $_->{match};
		3103	}
		3104	}
		3105
		3106	sub reload_facedata {
		3107	load_facedata "$DATADIR/facedata"
		3108	or die "unable to load facedata\n";
		3109	}
		3110
		3111	sub reload_archetypes {
		3112	load_resource_file "$DATADIR/archetypes"
		3113	or die "unable to load archetypes\n";
		3114	#d# NEED to laod twice to resolve forward references
		3115	# this really needs to be done in an extra post-pass
		3116	# (which needs to be synchronous, so solve it differently)
		3117	load_resource_file "$DATADIR/archetypes"
		3118	or die "unable to load archetypes\n";
		3119	}
		3120
		3121	sub reload_treasures {
		3122	load_resource_file "$DATADIR/treasures"
		3123	or die "unable to load treasurelists\n";
		3124	}
		3125
		3126	sub reload_resources {
		3127	warn "reloading resource files...\n";
		3128
		3129	reload_regions;
		3130	reload_facedata;
		3131	#reload_archetypes;#d#
		3132	reload_archetypes;
		3133	reload_treasures;
		3134
		3135	warn "finished reloading resource files\n";
		3136	}
		3137
		3138	sub init {
		3139	reload_resources;
		3140	}
		3141
		3142	sub reload_config {
1983	open my $fh, "<:utf8", cf::confdir . "/config"	3143	open my $fh, "<:utf8", "$CONFDIR/config"
1984	or return;	3144	or return;
1985		3145
1986	local $/;	3146	local $/;
1987	*CFG = YAML::Syck::Load <$fh>;	3147	*CFG = YAML::Syck::Load <$fh>;
1988		3148
…		…
1991	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3151	$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};	3152	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
1993		3153
1994	if (exists $CFG{mlockall}) {	3154	if (exists $CFG{mlockall}) {
1995	eval {	3155	eval {
1996	$CFG{mlockall} ? &mlockall : &munlockall	3156	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1997	and die "WARNING: m(un)lockall failed: $!\n";	3157	and die "WARNING: m(un)lockall failed: $!\n";
1998	};	3158	};
1999	warn $@ if $@;	3159	warn $@ if $@;
2000	}	3160	}
2001	}	3161	}
2002		3162
2003	sub main {	3163	sub main {
2004	# we must not ever block the main coroutine	3164	# we must not ever block the main coroutine
2005	local $Coro::idle = sub {	3165	local $Coro::idle = sub {
2006	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3166	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2007	Coro::async_pool { Event::one_event };	3167	(async {
		3168	Event::one_event;
		3169	})->prio (Coro::PRIO_MAX);
2008	};	3170	};
2009		3171
2010	cfg_load;	3172	reload_config;
2011	db_load;	3173	db_init;
2012	load_extensions;	3174	load_extensions;
		3175
		3176	$TICK_WATCHER->start;
2013	Event::loop;	3177	Event::loop;
2014	}	3178	}
2015		3179
2016	#############################################################################	3180	#############################################################################
2017	# initialisation	3181	# initialisation and cleanup
2018		3182
		3183	# install some emergency cleanup handlers
		3184	BEGIN {
		3185	for my $signal (qw(INT HUP TERM)) {
		3186	Event->signal (
		3187	reentrant => 0,
		3188	data => WF_AUTOCANCEL,
		3189	signal => $signal,
		3190	prio => 0,
		3191	cb => sub {
		3192	cf::cleanup "SIG$signal";
		3193	},
		3194	);
		3195	}
		3196	}
		3197
		3198	sub write_runtime {
		3199	my $runtime = "$LOCALDIR/runtime";
		3200
		3201	# first touch the runtime file to show we are still running:
		3202	# the fsync below can take a very very long time.
		3203
		3204	IO::AIO::aio_utime $runtime, undef, undef;
		3205
		3206	my $guard = cf::lock_acquire "write_runtime";
		3207
		3208	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3209	or return;
		3210
		3211	my $value = $cf::RUNTIME + 90 + 10;
		3212	# 10 is the runtime save interval, for a monotonic clock
		3213	# 60 allows for the watchdog to kill the server.
		3214
		3215	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3216	and return;
		3217
		3218	# always fsync - this file is important
		3219	aio_fsync $fh
		3220	and return;
		3221
		3222	# touch it again to show we are up-to-date
		3223	aio_utime $fh, undef, undef;
		3224
		3225	close $fh
		3226	or return;
		3227
		3228	aio_rename "$runtime~", $runtime
		3229	and return;
		3230
		3231	warn "runtime file written.\n";
		3232
		3233	1
		3234	}
		3235
		3236	sub emergency_save() {
		3237	my $freeze_guard = cf::freeze_mainloop;
		3238
		3239	warn "enter emergency perl save\n";
		3240
		3241	cf::sync_job {
		3242	# use a peculiar iteration method to avoid tripping on perl
		3243	# refcount bugs in for. also avoids problems with players
		3244	# and maps saved/destroyed asynchronously.
		3245	warn "begin emergency player save\n";
		3246	for my $login (keys %cf::PLAYER) {
		3247	my $pl = $cf::PLAYER{$login} or next;
		3248	$pl->valid or next;
		3249	$pl->save;
		3250	}
		3251	warn "end emergency player save\n";
		3252
		3253	warn "begin emergency map save\n";
		3254	for my $path (keys %cf::MAP) {
		3255	my $map = $cf::MAP{$path} or next;
		3256	$map->valid or next;
		3257	$map->save;
		3258	}
		3259	warn "end emergency map save\n";
		3260
		3261	warn "begin emergency database checkpoint\n";
		3262	BDB::db_env_txn_checkpoint $DB_ENV;
		3263	warn "end emergency database checkpoint\n";
		3264	};
		3265
		3266	warn "leave emergency perl save\n";
		3267	}
		3268
		3269	sub post_cleanup {
		3270	my ($make_core) = @_;
		3271
		3272	warn Carp::longmess "post_cleanup backtrace"
		3273	if $make_core;
		3274	}
		3275
2019	sub reload() {	3276	sub do_reload_perl() {
2020	# can/must only be called in main	3277	# can/must only be called in main
2021	if ($Coro::current != $Coro::main) {	3278	if ($Coro::current != $Coro::main) {
2022	warn "can only reload from main coroutine\n";	3279	warn "can only reload from main coroutine";
2023	return;	3280	return;
2024	}	3281	}
2025		3282
2026	warn "reloading...";	3283	warn "reloading...";
2027		3284
2028	my $guard = freeze_mainloop;	3285	warn "entering sync_job";
		3286
		3287	cf::sync_job {
		3288	cf::write_runtime; # external watchdog should not bark
2029	cf::emergency_save;	3289	cf::emergency_save;
		3290	cf::write_runtime; # external watchdog should not bark
2030		3291
2031	eval {	3292	warn "syncing database to disk";
		3293	BDB::db_env_txn_checkpoint $DB_ENV;
		3294
2032	# if anything goes wrong in here, we should simply crash as we already saved	3295	# if anything goes wrong in here, we should simply crash as we already saved
2033		3296
2034	# cancel all watchers	3297	warn "cancelling all WF_AUTOCANCEL watchers";
2035	for (Event::all_watchers) {	3298	for (Event::all_watchers) {
2036	$_->cancel if $_->data & WF_AUTOCANCEL;	3299	$_->cancel if $_->data & WF_AUTOCANCEL;
2037	}	3300	}
2038		3301
		3302	warn "flushing outstanding aio requests";
		3303	for (;;) {
		3304	BDB::flush;
		3305	IO::AIO::flush;
		3306	Coro::cede;
		3307	last unless IO::AIO::nreqs || BDB::nreqs;
		3308	warn "iterate...";
		3309	}
		3310
		3311	++$RELOAD;
		3312
2039	# cancel all extension coros	3313	warn "cancelling all extension coros";
2040	$_->cancel for values %EXT_CORO;	3314	$_->cancel for values %EXT_CORO;
2041	%EXT_CORO = ();	3315	%EXT_CORO = ();
2042		3316
2043	# unload all extensions	3317	warn "removing commands";
2044	for (@exts) {	3318	%COMMAND = ();
		3319
		3320	warn "removing ext/exti commands";
		3321	%EXTCMD = ();
		3322	%EXTICMD = ();
		3323
		3324	warn "unloading/nuking all extensions";
		3325	for my $pkg (@EXTS) {
2045	warn "unloading <$_>";	3326	warn "... unloading $pkg";
2046	unload_extension $_;	3327
		3328	if (my $cb = $pkg->can ("unload")) {
		3329	eval {
		3330	$cb->($pkg);
		3331	1
		3332	} or warn "$pkg unloaded, but with errors: $@";
2047	}	3333	}
2048		3334
		3335	warn "... nuking $pkg";
		3336	Symbol::delete_package $pkg;
		3337	}
		3338
2049	# unload all modules loaded from $LIBDIR	3339	warn "unloading all perl modules loaded from $LIBDIR";
2050	while (my ($k, $v) = each %INC) {	3340	while (my ($k, $v) = each %INC) {
2051	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3341	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2052		3342
2053	warn "removing <$k>";	3343	warn "... unloading $k";
2054	delete $INC{$k};	3344	delete $INC{$k};
2055		3345
2056	$k =~ s/\.pm$//;	3346	$k =~ s/\.pm$//;
2057	$k =~ s/\//::/g;	3347	$k =~ s/\//::/g;
2058		3348
…		…
2061	}	3351	}
2062		3352
2063	Symbol::delete_package $k;	3353	Symbol::delete_package $k;
2064	}	3354	}
2065		3355
2066	# sync database to disk
2067	cf::db_sync;
2068	IO::AIO::flush;
2069
2070	# get rid of safe::, as good as possible	3356	warn "getting rid of safe::, as good as possible";
2071	Symbol::delete_package "safe::$_"	3357	Symbol::delete_package "safe::$_"
2072	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3358	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2073		3359
2074	# remove register_script_function callbacks
2075	# TODO
2076
2077	# unload cf.pm "a bit"	3360	warn "unloading cf.pm \"a bit\"";
2078	delete $INC{"cf.pm"};	3361	delete $INC{"cf.pm"};
		3362	delete $INC{"cf/pod.pm"};
2079		3363
2080	# don't, removes xs symbols, too,	3364	# don't, removes xs symbols, too,
2081	# and global variables created in xs	3365	# and global variables created in xs
2082	#Symbol::delete_package __PACKAGE__;	3366	#Symbol::delete_package __PACKAGE__;
2083		3367
2084	# reload cf.pm	3368	warn "unload completed, starting to reload now";
		3369
2085	warn "reloading cf.pm";	3370	warn "reloading cf.pm";
2086	require cf;	3371	require cf;
2087	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3372	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2088		3373
2089	# load config and database again	3374	warn "loading config and database again";
2090	cf::cfg_load;	3375	cf::reload_config;
2091	cf::db_load;
2092		3376
2093	# load extensions
2094	warn "load extensions";	3377	warn "loading extensions";
2095	cf::load_extensions;	3378	cf::load_extensions;
2096		3379
2097	# reattach attachments to objects	3380	warn "reattaching attachments to objects/players";
2098	warn "reattach";	3381	_global_reattach; # objects, sockets
2099	_global_reattach;	3382	warn "reattaching attachments to maps";
2100	};	3383	reattach $_ for values %MAP;
		3384	warn "reattaching attachments to players";
		3385	reattach $_ for values %PLAYER;
2101		3386
2102	if ($@) {	3387	warn "leaving sync_job";
		3388
		3389	1
		3390	} or do {
2103	warn $@;	3391	warn $@;
2104	warn "error while reloading, exiting.";	3392	warn "error while reloading, exiting.";
2105	exit 1;	3393	exit 1;
2106	}	3394	};
2107		3395
2108	warn "reloaded successfully";	3396	warn "reloaded";
2109	};	3397	};
2110		3398
2111	#############################################################################	3399	our $RELOAD_WATCHER; # used only during reload
2112		3400
2113	unless ($LINK_MAP) {	3401	sub reload_perl() {
2114	$LINK_MAP = cf::map::new;	3402	# doing reload synchronously and two reloads happen back-to-back,
		3403	# coro crashes during coro_state_free->destroy here.
2115		3404
2116	$LINK_MAP->width (41);	3405	$RELOAD_WATCHER ||= Event->timer (
2117	$LINK_MAP->height (41);	3406	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,	3407	after => 0,
		3408	data => WF_AUTOCANCEL,
2126	cb => sub {	3409	cb => sub {
2127	$_[0]->w->cancel;	3410	do_reload_perl;
2128		3411	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	});	3412	},
2147		3413	);
2148	$LINK_MAP->{deny_save} = 1;
2149	$LINK_MAP->{deny_reset} = 1;
2150
2151	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2152	}	3414	}
2153
2154	register "<global>", __PACKAGE__;
2155		3415
2156	register_command "reload" => sub {	3416	register_command "reload" => sub {
2157	my ($who, $arg) = @_;	3417	my ($who, $arg) = @_;
2158		3418
2159	if ($who->flag (FLAG_WIZ)) {	3419	if ($who->flag (FLAG_WIZ)) {
2160	$who->message ("start of reload.");
2161	reload;
2162	$who->message ("end of reload.");	3420	$who->message ("reloading server.");
		3421	async { reload_perl };
2163	}	3422	}
2164	};	3423	};
2165		3424
2166	unshift @INC, $LIBDIR;	3425	unshift @INC, $LIBDIR;
		3426
		3427	my $bug_warning = 0;
		3428
		3429	our @WAIT_FOR_TICK;
		3430	our @WAIT_FOR_TICK_BEGIN;
		3431
		3432	sub wait_for_tick {
		3433	return unless $TICK_WATCHER->is_active;
		3434	return if $Coro::current == $Coro::main;
		3435
		3436	my $signal = new Coro::Signal;
		3437	push @WAIT_FOR_TICK, $signal;
		3438	$signal->wait;
		3439	}
		3440
		3441	sub wait_for_tick_begin {
		3442	return unless $TICK_WATCHER->is_active;
		3443	return if $Coro::current == $Coro::main;
		3444
		3445	my $signal = new Coro::Signal;
		3446	push @WAIT_FOR_TICK_BEGIN, $signal;
		3447	$signal->wait;
		3448	}
		3449
		3450	our $stat_fh;
		3451	sysopen $stat_fh, "/tmp/cfstats", Fcntl::O_APPEND | Fcntl::O_CREAT | Fcntl::O_WRONLY, 0600;#d#
2167		3452
2168	$TICK_WATCHER = Event->timer (	3453	$TICK_WATCHER = Event->timer (
2169	reentrant => 0,	3454	reentrant => 0,
		3455	parked => 1,
2170	prio => 0,	3456	prio => 0,
2171	at => $NEXT_TICK || $TICK,	3457	at => $NEXT_TICK || $TICK,
2172	data => WF_AUTOCANCEL,	3458	data => WF_AUTOCANCEL,
2173	cb => sub {	3459	cb => sub {
		3460	if ($Coro::current != $Coro::main) {
		3461	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3462	unless ++$bug_warning > 10;
		3463	return;
		3464	}
		3465
		3466	my @pl = cf::player::list; my $stats = sprintf "%.2f %d %d %d", $RUNTIME, (scalar @pl), cf::object::actives_size, cf::object::objects_size; #d#
		3467
		3468	$NOW = $tick_start = Event::time;
		3469
2174	cf::server_tick; # one server iteration	3470	cf::server_tick; # one server iteration
		3471
2175	$RUNTIME += $TICK;	3472	$RUNTIME += $TICK;
2176	$NEXT_TICK += $TICK;	3473	$NEXT_TICK += $TICK;
2177		3474
		3475	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3476	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3477	Coro::async_pool {
		3478	write_runtime
		3479	or warn "ERROR: unable to write runtime file: $!";
		3480	};
		3481	}
		3482
		3483	# my $AFTER = Event::time;
		3484	# warn $AFTER - $NOW;#d#
		3485
		3486	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3487	$sig->send;
		3488	}
		3489	while (my $sig = shift @WAIT_FOR_TICK) {
		3490	$sig->send;
		3491	}
		3492
		3493	$NOW = Event::time;
		3494
2178	# if we are delayed by four ticks or more, skip them all	3495	# if we are delayed by four ticks or more, skip them all
2179	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3496	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2180		3497
2181	$TICK_WATCHER->at ($NEXT_TICK);	3498	$TICK_WATCHER->at ($NEXT_TICK);
2182	$TICK_WATCHER->start;	3499	$TICK_WATCHER->start;
		3500
		3501	$LOAD = ($NOW - $tick_start) / $TICK;
		3502	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3503
		3504	_post_tick;
		3505
		3506	# gather some statistics#d#
		3507	$stats .= sprintf " %d\n", 10000 * ($NOW - $tick_start);#d#
		3508	IO::AIO::aio_write $stat_fh, undef, undef, $stats, 0;#d#
2183	},	3509	},
2184	);	3510	);
2185		3511
		3512	{
		3513	BDB::min_parallel 8;
2186	IO::AIO::max_poll_time $TICK * 0.2;	3514	BDB::max_poll_time $TICK * 0.1;
2187		3515	$BDB_POLL_WATCHER = Event->io (
2188	Event->io (	3516	reentrant => 0,
2189	fd => IO::AIO::poll_fileno,	3517	fd => BDB::poll_fileno,
2190	poll => 'r',	3518	poll => 'r',
2191	prio => 5,	3519	prio => 0,
2192	data => WF_AUTOCANCEL,
2193	cb => \&IO::AIO::poll_cb,
2194	);
2195
2196	Event->timer (
2197	data => WF_AUTOCANCEL,	3520	data => WF_AUTOCANCEL,
		3521	cb => \&BDB::poll_cb,
		3522	);
		3523
		3524	BDB::set_sync_prepare {
		3525	my $status;
		3526	my $current = $Coro::current;
		3527	(
		3528	sub {
		3529	$status = $!;
		3530	$current->ready; undef $current;
		3531	},
		3532	sub {
		3533	Coro::schedule while defined $current;
		3534	$! = $status;
		3535	},
		3536	)
		3537	};
		3538
		3539	unless ($DB_ENV) {
		3540	$DB_ENV = BDB::db_env_create;
		3541
		3542	cf::sync_job {
		3543	eval {
		3544	BDB::db_env_open
		3545	$DB_ENV,
		3546	$BDBDIR,
		3547	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3548	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3549	0666;
		3550
		3551	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3552
		3553	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3554	| BDB::LOG_AUTOREMOVE, 1);
		3555	$DB_ENV->set_lk_detect;
		3556	};
		3557
		3558	cf::cleanup "db_env_open(db): $@" if $@;
		3559	};
		3560	}
		3561
		3562	$BDB_CHECKPOINT_WATCHER = Event->timer (
2198	after => 0,	3563	after => 11,
2199	interval => 10,	3564	interval => 60,
		3565	hard => 1,
		3566	prio => 0,
		3567	data => WF_AUTOCANCEL,
2200	cb => sub {	3568	cb => sub {
2201	(Coro::unblock_sub {	3569	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
2202	write_runtime	3570	},
2203	or warn "ERROR: unable to write runtime file: $!";	3571	);
		3572	$BDB_TRICKLE_WATCHER = Event->timer (
		3573	after => 5,
		3574	interval => 10,
		3575	hard => 1,
		3576	prio => 0,
		3577	data => WF_AUTOCANCEL,
		3578	cb => sub {
		3579	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3580	},
		3581	);
		3582	}
		3583
		3584	{
		3585	IO::AIO::min_parallel 8;
		3586
		3587	undef $Coro::AIO::WATCHER;
		3588	IO::AIO::max_poll_time $TICK * 0.1;
		3589	$AIO_POLL_WATCHER = Event->io (
		3590	reentrant => 0,
		3591	data => WF_AUTOCANCEL,
		3592	fd => IO::AIO::poll_fileno,
		3593	poll => 'r',
		3594	prio => 6,
		3595	cb => \&IO::AIO::poll_cb,
		3596	);
		3597	}
		3598
		3599	my $_log_backtrace;
		3600
		3601	sub _log_backtrace {
		3602	my ($msg, @addr) = @_;
		3603
		3604	$msg =~ s/\n//;
		3605
		3606	# limit the # of concurrent backtraces
		3607	if ($_log_backtrace < 2) {
		3608	++$_log_backtrace;
		3609	async {
		3610	my @bt = fork_call {
		3611	@addr = map { sprintf "%x", $_ } @addr;
		3612	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3613	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3614	or die "addr2line: $!";
		3615
		3616	my @funcs;
		3617	my @res = <$fh>;
		3618	chomp for @res;
		3619	while (@res) {
		3620	my ($func, $line) = splice @res, 0, 2, ();
		3621	push @funcs, "[$func] $line";
		3622	}
		3623
		3624	@funcs
		3625	};
		3626
		3627	LOG llevInfo, "[ABT] $msg\n";
		3628	LOG llevInfo, "[ABT] $_\n" for @bt;
		3629	--$_log_backtrace;
2204	})->();	3630	};
		3631	} else {
		3632	LOG llevInfo, "[ABT] $msg\n";
		3633	LOG llevInfo, "[ABT] [suppressed]\n";
2205	},	3634	}
2206	);	3635	}
		3636
		3637	# load additional modules
		3638	use cf::pod;
2207		3639
2208	END { cf::emergency_save }	3640	END { cf::emergency_save }
2209		3641
2210	1	3642	1
2211		3643

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