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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.140 by root, Fri Jan 5 20:04:02 2007 UTC vs.
Revision 1.371 by root, Thu Sep 13 16:16:01 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.64 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
		28	use Data::Dumper;
20	use Digest::MD5;	29	use Digest::MD5;
21	use Fcntl;	30	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.32 ();
24	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
25		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
27		44
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
30		47
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		49
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		51
35	our %COMMAND = ();	52	our %COMMAND = ();
36	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
38		60
		61	our $RELOAD; # number of reloads so far
39	our @EVENT;	62	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		63
42	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	80	our $NEXT_TICK;
45	our $NOW;	81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $BDB_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
		88	our $DB_ENV;
46		89
47	our %CFG;	90	our %CFG;
48		91
49	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	93	our $RUNTIME;
51		94
52	our %MAP; # all maps	95	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	96	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	97	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	98
		99	# used to convert map paths into valid unix filenames by replacing / by ∕
		100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
56		105
57	binmode STDOUT;	106	binmode STDOUT;
58	binmode STDERR;	107	binmode STDERR;
59		108
60	# read virtual server time, if available	109	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
65	}	114	}
66		115
67	mkdir cf::localdir;	116	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		118
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
76		122
77	#############################################################################	123	#############################################################################
78		124
79	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
80		126
…		…
87	=item $cf::RUNTIME	133	=item $cf::RUNTIME
88		134
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	136	every server tick.
91		137
92	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		141
94	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
96		146
97	=item $cf::NOW	147	=item $cf::NOW
98		148
99	The time of the last (current) server tick.	149	The time of the last (current) server tick.
100		150
101	=item $cf::TICK	151	=item $cf::TICK
102		152
103	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
104		164
105	=item %cf::CFG	165	=item %cf::CFG
106		166
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	168	from wherever your confdir points to.
		169
		170	=item cf::wait_for_tick, cf::wait_for_tick_begin
		171
		172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		173	returns directly I<after> the tick processing (and consequently, can only wake one process
		174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
109		181
110	=back	182	=back
111		183
112	=cut	184	=cut
113		185
114	BEGIN {	186	BEGIN {
115	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	188	my $msg = join "", @_;
117	utf8::encode $msg;
118		189
119	$msg .= "\n"	190	$msg .= "\n"
120	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
121		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		194
122	LOG llevError, "cfperl: $msg";	195	LOG llevError, $msg;
123	};	196	};
124	}	197	}
125		198
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		206
133	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	208	# within the Safe compartment.
135	for my $pkg (qw(	209	for my $pkg (qw(
136	cf::global cf::attachable	210	cf::global cf::attachable
…		…
145		219
146	$Event::DIED = sub {	220	$Event::DIED = sub {
147	warn "error in event callback: @_";	221	warn "error in event callback: @_";
148	};	222	};
149		223
150	my %ext_pkg;	224	#############################################################################
151	my @exts;
152	my @hook;
153		225
154	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
155		227
156	=over 4	228	=over 4
157		229
158	=cut	230	=item dumpval $ref
159		231
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	232	=cut
		233
		234	sub dumpval {
		235	eval {
		236	local $SIG{__DIE__};
		237	my $d;
		238	if (1) {
		239	$d = new Data::Dumper([$_[0]], ["*var"]);
		240	$d->Terse(1);
		241	$d->Indent(2);
		242	$d->Quotekeys(0);
		243	$d->Useqq(1);
		244	#$d->Bless(...);
		245	$d->Seen($_[1]) if @_ > 1;
		246	$d = $d->Dump();
		247	}
		248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		249	$d
		250	} || "[unable to dump $_[0]: '$@']";
		251	}
161		252
162	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
163		254
164	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
165		256
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
174		258
175	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
176		260
177	=cut	261	=cut
178		262
179	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
181	JSON::Syck::Dump $_[0]	265	sub to_json ($) { $json_coder->encode ($_[0]) }
182	}	266	sub from_json ($) { $json_coder->decode ($_[0]) }
183		267
184	=item cf::lock_wait $string	268	=item cf::lock_wait $string
185		269
186	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
187		271
…		…
190	Wait until the given lock is available and then acquires it and returns	274	Wait until the given lock is available and then acquires it and returns
191	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	275	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
192	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
193	returned.	277	returned.
194		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
195	Lock names should begin with a unique identifier (for example, cf::map::find	282	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
197		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
198	=cut	289	=cut
199		290
200	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
201		293
202	sub lock_wait($) {	294	sub lock_wait($) {
203	my ($key) = @_;	295	my ($key) = @_;
		296
		297	if ($LOCKER{$key} == $Coro::current) {#d#
		298	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		299	return;#d#
		300	}#d#
204		301
205	# wait for lock, if any	302	# wait for lock, if any
206	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;	305	Coro::schedule;
…		…
214		311
215	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
216	lock_wait $key;	313	lock_wait $key;
217		314
218	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
219		317
220	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
221	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
223	}	322	}
224	}	323	}
225		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
226	sub freeze_mainloop {	331	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	332	return unless $TICK_WATCHER->is_active;
228		333
229	my $guard = Coro::guard { $TICK_WATCHER->start };	334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
230	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
231	$guard	338	$guard
		339	}
		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	my $signal = new Coro::Signal;
		360
		361	while () {
		362	next_job:
		363	my $avail = cf::till_tick;
		364	if ($avail > 0.01) {
		365	for (0 .. $#SLOT_QUEUE) {
		366	if ($SLOT_QUEUE[$_][0] < $avail) {
		367	my $job = splice @SLOT_QUEUE, $_, 1, ();
		368	$job->[2]->send;
		369	Coro::cede;
		370	goto next_job;
		371	}
		372	}
		373	}
		374
		375	if (@SLOT_QUEUE) {
		376	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		377	push @cf::WAIT_FOR_TICK, $signal;
		378	$signal->wait;
		379	} else {
		380	Coro::schedule;
		381	}
		382	}
		383	};
		384
		385	sub get_slot($;$$) {
		386	my ($time, $pri, $name) = @_;
		387
		388	$time = $TICK * .6 if $time > $TICK * .6;
		389	my $sig = new Coro::Signal;
		390
		391	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		392	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		393	$SLOT_QUEUE->ready;
		394	$sig->wait;
232	}	395	}
233		396
234	=item cf::async { BLOCK }	397	=item cf::async { BLOCK }
235		398
236	Currently the same as Coro::async_pool, meaning you cannot use	399	Currently the same as Coro::async_pool, meaning you cannot use
…		…
241		404
242	BEGIN { *async = \&Coro::async_pool }	405	BEGIN { *async = \&Coro::async_pool }
243		406
244	=item cf::sync_job { BLOCK }	407	=item cf::sync_job { BLOCK }
245		408
246	The design of crossfire+ requires that the main coro ($Coro::main) is	409	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
247	always able to handle events or runnable, as crossfire+ is only partly	410	is always able to handle events or runnable, as Crossfire TRT is only
248	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	411	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		412	acceptable.
249		413
250	If it must be done, put the blocking parts into C<sync_job>. This will run	414	If it must be done, put the blocking parts into C<sync_job>. This will run
251	the given BLOCK in another coroutine while waiting for the result. The	415	the given BLOCK in another coroutine while waiting for the result. The
252	server will be frozen during this time, so the block should either finish	416	server will be frozen during this time, so the block should either finish
253	fast or be very important.	417	fast or be very important.
…		…
256		420
257	sub sync_job(&) {	421	sub sync_job(&) {
258	my ($job) = @_;	422	my ($job) = @_;
259		423
260	if ($Coro::current == $Coro::main) {	424	if ($Coro::current == $Coro::main) {
		425	my $time = Event::time;
		426
261	# this is the main coro, too bad, we have to block	427	# this is the main coro, too bad, we have to block
262	# till the operation succeeds, freezing the server :/	428	# till the operation succeeds, freezing the server :/
263		429
264	# TODO: use suspend/resume instead	430	# TODO: use suspend/resume instead
265	# (but this is cancel-safe)	431	# (but this is cancel-safe)
…		…
273	warn $@ if $@;	439	warn $@ if $@;
274	undef $busy;	440	undef $busy;
275	})->prio (Coro::PRIO_MAX);	441	})->prio (Coro::PRIO_MAX);
276		442
277	while ($busy) {	443	while ($busy) {
278	unless (Coro::cede) {	444	Coro::cede or Event::one_event;
279	Coro::nready ? Event::one_event 0 : Event::one_event;
280	Coro::cede_notself unless Coro::cede;
281	}	445	}
282	}	446
		447	$time = Event::time - $time;
		448
		449	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		450	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		451
		452	$tick_start += $time; # do not account sync jobs to server load
283		453
284	wantarray ? @res : $res[0]	454	wantarray ? @res : $res[0]
285	} else {	455	} else {
286	# we are in another coroutine, how wonderful, everything just works	456	# we are in another coroutine, how wonderful, everything just works
287		457
…		…
289	}	459	}
290	}	460	}
291		461
292	=item $coro = cf::async_ext { BLOCK }	462	=item $coro = cf::async_ext { BLOCK }
293		463
294	Like async, but this coro is automcatially being canceled when the	464	Like async, but this coro is automatically being canceled when the
295	extension calling this is being unloaded.	465	extension calling this is being unloaded.
296		466
297	=cut	467	=cut
298		468
299	sub async_ext(&) {	469	sub async_ext(&) {
…		…
307	$EXT_CORO{$coro+0} = $coro;	477	$EXT_CORO{$coro+0} = $coro;
308		478
309	$coro	479	$coro
310	}	480	}
311		481
312	sub write_runtime {	482	=item fork_call { }, $args
313	my $runtime = cf::localdir . "/runtime";
314		483
315	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	484	Executes the given code block with the given arguments in a seperate
316	or return;	485	process, returning the results. Everything must be serialisable with
		486	Coro::Storable. May, of course, block. Note that the executed sub may
		487	never block itself or use any form of Event handling.
317		488
318	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	489	=cut
319	(aio_write $fh, 0, (length $value), $value, 0) <= 0
320	and return;
321		490
322	aio_fsync $fh	491	sub fork_call(&@) {
323	and return;	492	my ($cb, @args) = @_;
324		493
325	close $fh	494	# we seemingly have to make a local copy of the whole thing,
326	or return;	495	# otherwise perl prematurely frees the stuff :/
		496	# TODO: investigate and fix (likely this will be rather laborious)
327		497
328	aio_rename "$runtime~", $runtime	498	my @res = Coro::Util::fork_eval {
329	and return;	499	reset_signals;
		500	&$cb
		501	}, @args;
330		502
		503	wantarray ? @res : $res[-1]
		504	}
		505
		506	=item $value = cf::db_get $family => $key
		507
		508	Returns a single value from the environment database.
		509
		510	=item cf::db_put $family => $key => $value
		511
		512	Stores the given C<$value> in the family. It can currently store binary
		513	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		514
		515	=item $db = cf::db_table "name"
		516
		517	Create and/or open a new database table. The string must not be "db" and must be unique
		518	within each server.
		519
		520	=cut
		521
		522	sub db_table($) {
		523	my ($name) = @_;
		524	my $db = BDB::db_create $DB_ENV;
		525
		526	eval {
		527	$db->set_flags (BDB::CHKSUM);
		528
		529	utf8::encode $name;
		530	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		531	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		532	cf::cleanup "db_open(db): $!" if $!;
		533	};
		534	cf::cleanup "db_open(db): $@" if $@;
		535
		536	$db
		537	}
		538
		539	our $DB;
		540
		541	sub db_init {
		542	cf::sync_job {
		543	$DB ||= db_table "db";
		544	};
		545	}
		546
		547	sub db_get($$) {
		548	my $key = "$_[0]/$_[1]";
		549
		550	cf::sync_job {
		551	BDB::db_get $DB, undef, $key, my $data;
		552
		553	$! ? ()
		554	: $data
331	1	555	}
		556	}
		557
		558	sub db_put($$$) {
		559	BDB::dbreq_pri 4;
		560	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		561	}
		562
		563	=item cf::cache $id => [$paths...], $processversion => $process
		564
		565	Generic caching function that returns the value of the resource $id,
		566	caching and regenerating as required.
		567
		568	This function can block.
		569
		570	=cut
		571
		572	sub cache {
		573	my ($id, $src, $processversion, $process) = @_;
		574
		575	my $meta =
		576	join "\x00",
		577	$processversion,
		578	map {
		579	aio_stat $_
		580	and Carp::croak "$_: $!";
		581
		582	($_, (stat _)[7,9])
		583	} @$src;
		584
		585	my $dbmeta = db_get cache => "$id/meta";
		586	if ($dbmeta ne $meta) {
		587	# changed, we may need to process
		588
		589	my @data;
		590	my $md5;
		591
		592	for (0 .. $#$src) {
		593	0 <= aio_load $src->[$_], $data[$_]
		594	or Carp::croak "$src->[$_]: $!";
		595	}
		596
		597	# if processing is expensive, check
		598	# checksum first
		599	if (1) {
		600	$md5 =
		601	join "\x00",
		602	$processversion,
		603	map {
		604	cf::cede_to_tick;
		605	($src->[$_], Digest::MD5::md5_hex $data[$_])
		606	} 0.. $#$src;
		607
		608
		609	my $dbmd5 = db_get cache => "$id/md5";
		610	if ($dbmd5 eq $md5) {
		611	db_put cache => "$id/meta", $meta;
		612
		613	return db_get cache => "$id/data";
		614	}
		615	}
		616
		617	my $t1 = Time::HiRes::time;
		618	my $data = $process->(\@data);
		619	my $t2 = Time::HiRes::time;
		620
		621	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		622
		623	db_put cache => "$id/data", $data;
		624	db_put cache => "$id/md5" , $md5;
		625	db_put cache => "$id/meta", $meta;
		626
		627	return $data;
		628	}
		629
		630	db_get cache => "$id/data"
		631	}
		632
		633	=item cf::datalog type => key => value, ...
		634
		635	Log a datalog packet of the given type with the given key-value pairs.
		636
		637	=cut
		638
		639	sub datalog($@) {
		640	my ($type, %kv) = @_;
		641	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
332	}	642	}
333		643
334	=back	644	=back
335		645
336	=cut	646	=cut
337
338	#############################################################################
339
340	package cf::path;
341
342	sub new {
343	my ($class, $path, $base) = @_;
344
345	$path = $path->as_string if ref $path;
346
347	my $self = bless { }, $class;
348
349	# {... are special paths that are not touched
350	# ?xxx/... are special absolute paths
351	# ?random/... random maps
352	# /! non-realised random map exit
353	# /... normal maps
354	# ~/... per-player maps without a specific player (DO NOT USE)
355	# ~user/... per-player map of a specific user
356
357	if ($path =~ /^{/) {
358	# fine as it is
359	} elsif ($path =~ s{^\?random/}{}) {
360	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
361	$self->{random} = cf::from_json $data;
362	} else {
363	if ($path =~ s{^~([^/]+)?}{}) {
364	$self->{user_rel} = 1;
365
366	if (defined $1) {
367	$self->{user} = $1;
368	} elsif ($base =~ m{^~([^/]+)/}) {
369	$self->{user} = $1;
370	} else {
371	warn "cannot resolve user-relative path without user <$path,$base>\n";
372	}
373	} elsif ($path =~ /^\//) {
374	# already absolute
375	} else {
376	$base =~ s{[^/]+/?$}{};
377	return $class->new ("$base/$path");
378	}
379
380	for ($path) {
381	redo if s{/\.?/}{/};
382	redo if s{/[^/]+/\.\./}{/};
383	}
384	}
385
386	$self->{path} = $path;
387
388	$self
389	}
390
391	# the name / primary key / in-game path
392	sub as_string {
393	my ($self) = @_;
394
395	$self->{user_rel} ? "~$self->{user}$self->{path}"
396	: $self->{random} ? "?random/$self->{path}"
397	: $self->{path}
398	}
399
400	# the displayed name, this is a one way mapping
401	sub visible_name {
402	my ($self) = @_;
403
404	# if (my $rmp = $self->{random}) {
405	# # todo: be more intelligent about this
406	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
407	# } else {
408	$self->as_string
409	# }
410	}
411
412	# escape the /'s in the path
413	sub _escaped_path {
414	# ∕ is U+2215
415	(my $path = $_[0]{path}) =~ s/\//∕/g;
416	$path
417	}
418
419	# the original (read-only) location
420	sub load_path {
421	my ($self) = @_;
422
423	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
424	}
425
426	# the temporary/swap location
427	sub save_path {
428	my ($self) = @_;
429
430	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
431	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
432	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
433	}
434
435	# the unique path, might be eq to save_path
436	sub uniq_path {
437	my ($self) = @_;
438
439	$self->{user_rel} || $self->{random}
440	? undef
441	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
442	}
443
444	# return random map parameters, or undef
445	sub random_map_params {
446	my ($self) = @_;
447
448	$self->{random}
449	}
450
451	# this is somewhat ugly, but style maps do need special treatment
452	sub is_style_map {
453	$_[0]{path} =~ m{^/styles/}
454	}
455
456	package cf;
457		647
458	#############################################################################	648	#############################################################################
459		649
460	=head2 ATTACHABLE OBJECTS	650	=head2 ATTACHABLE OBJECTS
461		651
…		…
463	attach callbacks/event handlers (a collection of which is called an "attachment")	653	attach callbacks/event handlers (a collection of which is called an "attachment")
464	to it. All such attachable objects support the following methods.	654	to it. All such attachable objects support the following methods.
465		655
466	In the following description, CLASS can be any of C<global>, C<object>	656	In the following description, CLASS can be any of C<global>, C<object>
467	C<player>, C<client> or C<map> (i.e. the attachable objects in	657	C<player>, C<client> or C<map> (i.e. the attachable objects in
468	crossfire+).	658	Crossfire TRT).
469		659
470	=over 4	660	=over 4
471		661
472	=item $attachable->attach ($attachment, key => $value...)	662	=item $attachable->attach ($attachment, key => $value...)
473		663
…		…
587	our @CB_TYPE = (); # registry for type (cf-object class) based events	777	our @CB_TYPE = (); # registry for type (cf-object class) based events
588	our @CB_MAP = ();	778	our @CB_MAP = ();
589		779
590	my %attachment;	780	my %attachment;
591		781
		782	sub cf::attachable::thawer_merge {
		783	# simply override everything except _meta
		784	local $_[0]{_meta};
		785	%{$_[0]} = %{$_[1]};
		786	}
		787
592	sub _attach_cb($$$$) {	788	sub _attach_cb($$$$) {
593	my ($registry, $event, $prio, $cb) = @_;	789	my ($registry, $event, $prio, $cb) = @_;
594		790
595	use sort 'stable';	791	use sort 'stable';
596		792
…		…
630	$registry = $CB_TYPE[$object_type] ||= [];	826	$registry = $CB_TYPE[$object_type] ||= [];
631		827
632	} elsif ($type eq "subtype") {	828	} elsif ($type eq "subtype") {
633	defined $object_type or Carp::croak "subtype specified without type";	829	defined $object_type or Carp::croak "subtype specified without type";
634	my $object_subtype = shift @arg;	830	my $object_subtype = shift @arg;
635	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	831	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
636		832
637	} elsif ($type eq "package") {	833	} elsif ($type eq "package") {
638	my $pkg = shift @arg;	834	my $pkg = shift @arg;
639		835
640	while (my ($name, $id) = each %cb_id) {	836	while (my ($name, $id) = each %cb_id) {
…		…
669	_attach $registry, $klass, @attach;	865	_attach $registry, $klass, @attach;
670	}	866	}
671		867
672	$obj->{$name} = \%arg;	868	$obj->{$name} = \%arg;
673	} else {	869	} else {
674	warn "object uses attachment '$name' that is not available, postponing.\n";	870	warn "object uses attachment '$name' which is not available, postponing.\n";
675	}	871	}
676		872
677	$obj->{_attachment}{$name} = undef;	873	$obj->{_attachment}{$name} = undef;
678	}	874	}
679		875
…		…
681	if (ref $_[0]) {	877	if (ref $_[0]) {
682	_object_attach @_;	878	_object_attach @_;
683	} else {	879	} else {
684	_attach shift->_attach_registry, @_;	880	_attach shift->_attach_registry, @_;
685	}	881	}
		882	_recalc_want;
686	};	883	};
687		884
688	# all those should be optimised	885	# all those should be optimised
689	sub cf::attachable::detach {	886	sub cf::attachable::detach {
690	my ($obj, $name) = @_;	887	my ($obj, $name) = @_;
…		…
693	delete $obj->{_attachment}{$name};	890	delete $obj->{_attachment}{$name};
694	reattach ($obj);	891	reattach ($obj);
695	} else {	892	} else {
696	Carp::croak "cannot, currently, detach class attachments";	893	Carp::croak "cannot, currently, detach class attachments";
697	}	894	}
		895	_recalc_want;
698	};	896	};
699		897
700	sub cf::attachable::attached {	898	sub cf::attachable::attached {
701	my ($obj, $name) = @_;	899	my ($obj, $name) = @_;
702		900
…		…
717	";	915	";
718	die if $@;	916	die if $@;
719	}	917	}
720		918
721	our $override;	919	our $override;
722	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	920	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
723		921
724	sub override {	922	sub override {
725	$override = 1;	923	$override = 1;
726	@invoke_results = ();	924	@INVOKE_RESULTS = (@_);
727	}	925	}
728		926
729	sub do_invoke {	927	sub do_invoke {
730	my $event = shift;	928	my $event = shift;
731	my $callbacks = shift;	929	my $callbacks = shift;
732		930
733	@invoke_results = ();	931	@INVOKE_RESULTS = ();
734		932
735	local $override;	933	local $override;
736		934
737	for (@$callbacks) {	935	for (@$callbacks) {
738	eval { &{$_->[1]} };	936	eval { &{$_->[1]} };
…		…
755		953
756	Generate an object-specific event with the given arguments.	954	Generate an object-specific event with the given arguments.
757		955
758	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	956	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
759	removed in future versions), and there is no public API to access override	957	removed in future versions), and there is no public API to access override
760	results (if you must, access C<@cf::invoke_results> directly).	958	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
761		959
762	=back	960	=back
763		961
764	=cut	962	=cut
765		963
766	#############################################################################	964	#############################################################################
767	# object support	965	# object support
		966	#
		967
		968	sub _can_merge {
		969	my ($ob1, $ob2) = @_;
		970
		971	local $Storable::canonical = 1;
		972	my $fob1 = Storable::freeze $ob1;
		973	my $fob2 = Storable::freeze $ob2;
		974
		975	$fob1 eq $fob2
		976	}
768		977
769	sub reattach {	978	sub reattach {
770	# basically do the same as instantiate, without calling instantiate	979	# basically do the same as instantiate, without calling instantiate
771	my ($obj) = @_;	980	my ($obj) = @_;
		981
		982	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
772		983
773	my $registry = $obj->registry;	984	my $registry = $obj->registry;
774		985
775	@$registry = ();	986	@$registry = ();
776		987
…		…
815	);	1026	);
816		1027
817	sub object_freezer_save {	1028	sub object_freezer_save {
818	my ($filename, $rdata, $objs) = @_;	1029	my ($filename, $rdata, $objs) = @_;
819		1030
		1031	my $guard = cf::lock_acquire "io";
		1032
820	sync_job {	1033	sync_job {
821	if (length $$rdata) {	1034	if (length $$rdata) {
		1035	utf8::decode (my $decname = $filename);
822	warn sprintf "saving %s (%d,%d)\n",	1036	warn sprintf "saving %s (%d,%d)\n",
823	$filename, length $$rdata, scalar @$objs;	1037	$decname, length $$rdata, scalar @$objs;
824		1038
825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1039	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
826	chmod SAVE_MODE, $fh;	1040	chmod SAVE_MODE, $fh;
827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1041	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
828	aio_fsync $fh;	1042	aio_fsync $fh if $cf::USE_FSYNC;
829	close $fh;	1043	close $fh;
830		1044
831	if (@$objs) {	1045	if (@$objs) {
832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1046	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
833	chmod SAVE_MODE, $fh;	1047	chmod SAVE_MODE, $fh;
834	my $data = Storable::nfreeze { version => 1, objs => $objs };	1048	my $data = Storable::nfreeze { version => 1, objs => $objs };
835	aio_write $fh, 0, (length $data), $data, 0;	1049	aio_write $fh, 0, (length $data), $data, 0;
836	aio_fsync $fh;	1050	aio_fsync $fh if $cf::USE_FSYNC;
837	close $fh;	1051	close $fh;
838	aio_rename "$filename.pst~", "$filename.pst";	1052	aio_rename "$filename.pst~", "$filename.pst";
839	}	1053	}
840	} else {	1054	} else {
841	aio_unlink "$filename.pst";	1055	aio_unlink "$filename.pst";
…		…
847	}	1061	}
848	} else {	1062	} else {
849	aio_unlink $filename;	1063	aio_unlink $filename;
850	aio_unlink "$filename.pst";	1064	aio_unlink "$filename.pst";
851	}	1065	}
852	}	1066	};
		1067
		1068	undef $guard;
853	}	1069	}
854		1070
855	sub object_freezer_as_string {	1071	sub object_freezer_as_string {
856	my ($rdata, $objs) = @_;	1072	my ($rdata, $objs) = @_;
857		1073
…		…
862		1078
863	sub object_thawer_load {	1079	sub object_thawer_load {
864	my ($filename) = @_;	1080	my ($filename) = @_;
865		1081
866	my ($data, $av);	1082	my ($data, $av);
		1083
		1084	my $guard = cf::lock_acquire "io";
867		1085
868	(aio_load $filename, $data) >= 0	1086	(aio_load $filename, $data) >= 0
869	or return;	1087	or return;
870		1088
871	unless (aio_stat "$filename.pst") {	1089	unless (aio_stat "$filename.pst") {
872	(aio_load "$filename.pst", $av) >= 0	1090	(aio_load "$filename.pst", $av) >= 0
873	or return;	1091	or return;
		1092
		1093	undef $guard;
874	$av = eval { (Storable::thaw $av)->{objs} };	1094	$av = eval { (Storable::thaw $av)->{objs} };
875	}	1095	}
876		1096
		1097	utf8::decode (my $decname = $filename);
877	warn sprintf "loading %s (%d)\n",	1098	warn sprintf "loading %s (%d,%d)\n",
878	$filename, length $data, scalar @{$av || []};#d#	1099	$decname, length $data, scalar @{$av || []};
		1100
879	return ($data, $av);	1101	($data, $av)
880	}	1102	}
		1103
		1104	=head2 COMMAND CALLBACKS
		1105
		1106	=over 4
		1107
		1108	=cut
881		1109
882	#############################################################################	1110	#############################################################################
883	# command handling &c	1111	# command handling &c
884		1112
885	=item cf::register_command $name => \&callback($ob,$args);	1113	=item cf::register_command $name => \&callback($ob,$args);
…		…
898	push @{ $COMMAND{$name} }, [$caller, $cb];	1126	push @{ $COMMAND{$name} }, [$caller, $cb];
899	}	1127	}
900		1128
901	=item cf::register_extcmd $name => \&callback($pl,$packet);	1129	=item cf::register_extcmd $name => \&callback($pl,$packet);
902		1130
903	Register a callbackf ro execution when the client sends an extcmd packet.	1131	Register a callback for execution when the client sends an (synchronous)
		1132	extcmd packet. Ext commands will be processed in the order they are
		1133	received by the server, like other user commands. The first argument is
		1134	the logged-in player. Ext commands can only be processed after a player
		1135	has logged in successfully.
904		1136
905	If the callback returns something, it is sent back as if reply was being	1137	If the callback returns something, it is sent back as if reply was being
906	called.	1138	called.
907		1139
		1140	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1141
		1142	Register a callback for execution when the client sends an (asynchronous)
		1143	exticmd packet. Exti commands are processed by the server as soon as they
		1144	are received, i.e. out of order w.r.t. other commands. The first argument
		1145	is a client socket. Exti commands can be received anytime, even before
		1146	log-in.
		1147
		1148	If the callback returns something, it is sent back as if reply was being
		1149	called.
		1150
908	=cut	1151	=cut
909		1152
910	sub register_extcmd {	1153	sub register_extcmd {
911	my ($name, $cb) = @_;	1154	my ($name, $cb) = @_;
912		1155
913	my $caller = caller;
914	#warn "registering extcmd '$name' to '$caller'";
915
916	$EXTCMD{$name} = [$cb, $caller];	1156	$EXTCMD{$name} = $cb;
		1157	}
		1158
		1159	sub register_exticmd {
		1160	my ($name, $cb) = @_;
		1161
		1162	$EXTICMD{$name} = $cb;
917	}	1163	}
918		1164
919	cf::player->attach (	1165	cf::player->attach (
920	on_command => sub {	1166	on_command => sub {
921	my ($pl, $name, $params) = @_;	1167	my ($pl, $name, $params) = @_;
…		…
930	cf::override;	1176	cf::override;
931	},	1177	},
932	on_extcmd => sub {	1178	on_extcmd => sub {
933	my ($pl, $buf) = @_;	1179	my ($pl, $buf) = @_;
934		1180
935	my $msg = eval { from_json $buf };	1181	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
936		1182
937	if (ref $msg) {	1183	if (ref $msg) {
		1184	my ($type, $reply, @payload) =
		1185	"ARRAY" eq ref $msg
		1186	? @$msg
		1187	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1188
		1189	my @reply;
		1190
938	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
939	if (my %reply = $cb->[0]->($pl, $msg)) {	1192	@reply = $cb->($pl, @payload);
940	$pl->ext_reply ($msg->{msgid}, %reply);
941	}
942	}	1193	}
		1194
		1195	$pl->ext_reply ($reply, @reply)
		1196	if $reply;
		1197
943	} else {	1198	} else {
944	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1199	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
945	}	1200	}
946		1201
947	cf::override;	1202	cf::override;
948	},	1203	},
949	);	1204	);
950		1205
951	sub register {
952	my ($base, $pkg) = @_;
953
954	#TODO
955	}
956
957	sub load_extension {	1206	sub load_extensions {
		1207	cf::sync_job {
		1208	my %todo;
		1209
		1210	for my $path (<$LIBDIR/*.ext>) {
		1211	next unless -r $path;
		1212
		1213	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1214	my $base = $1;
		1215	my $pkg = $1;
		1216	$pkg =~ s/[^[:word:]]/_/g;
		1217	$pkg = "ext::$pkg";
		1218
		1219	open my $fh, "<:utf8", $path
		1220	or die "$path: $!";
		1221
		1222	my $source = do { local $/; <$fh> };
		1223
		1224	my %ext = (
		1225	path => $path,
		1226	base => $base,
		1227	pkg => $pkg,
		1228	);
		1229
		1230	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1231	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1232
		1233	$ext{source} =
		1234	"package $pkg; use strict; use utf8;\n"
		1235	. "#line 1 \"$path\"\n{\n"
		1236	. $source
		1237	. "\n};\n1";
		1238
		1239	$todo{$base} = \%ext;
		1240	}
		1241
		1242	my %done;
		1243	while (%todo) {
		1244	my $progress;
		1245
		1246	while (my ($k, $v) = each %todo) {
		1247	for (split /,\s*/, $v->{meta}{depends}) {
		1248	goto skip
		1249	unless exists $done{$_};
		1250	}
		1251
		1252	warn "... loading '$k' into '$v->{pkg}'\n";
		1253
		1254	unless (eval $v->{source}) {
		1255	my $msg = $@ ? "$v->{path}: $@\n"
		1256	: "$v->{base}: extension inactive.\n";
		1257
		1258	if (exists $v->{meta}{mandatory}) {
		1259	warn $msg;
		1260	warn "mandatory extension failed to load, exiting.\n";
		1261	exit 1;
		1262	}
		1263
		1264	warn $msg;
		1265	}
		1266
		1267	$done{$k} = delete $todo{$k};
		1268	push @EXTS, $v->{pkg};
		1269	$progress = 1;
		1270	}
		1271
		1272	skip:
		1273	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1274	unless $progress;
		1275	}
		1276	};
		1277	}
		1278
		1279	#############################################################################
		1280
		1281	=back
		1282
		1283	=head2 CORE EXTENSIONS
		1284
		1285	Functions and methods that extend core crossfire objects.
		1286
		1287	=cut
		1288
		1289	package cf::player;
		1290
		1291	use Coro::AIO;
		1292
		1293	=head3 cf::player
		1294
		1295	=over 4
		1296
		1297	=item cf::player::num_playing
		1298
		1299	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1300
		1301	=cut
		1302
		1303	sub num_playing {
		1304	scalar grep
		1305	$_->ob->map
		1306	&& !$_->hidden
		1307	&& !$_->ob->flag (cf::FLAG_WIZ),
		1308	cf::player::list
		1309	}
		1310
		1311	=item cf::player::find $login
		1312
		1313	Returns the given player object, loading it if necessary (might block).
		1314
		1315	=cut
		1316
		1317	sub playerdir($) {
		1318	"$PLAYERDIR/"
		1319	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1320	}
		1321
		1322	sub path($) {
		1323	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1324
		1325	(playerdir $login) . "/playerdata"
		1326	}
		1327
		1328	sub find_active($) {
		1329	$cf::PLAYER{$_[0]}
		1330	and $cf::PLAYER{$_[0]}->active
		1331	and $cf::PLAYER{$_[0]}
		1332	}
		1333
		1334	sub exists($) {
		1335	my ($login) = @_;
		1336
		1337	$cf::PLAYER{$login}
		1338	or cf::sync_job { !aio_stat path $login }
		1339	}
		1340
		1341	sub find($) {
		1342	return $cf::PLAYER{$_[0]} || do {
		1343	my $login = $_[0];
		1344
		1345	my $guard = cf::lock_acquire "user_find:$login";
		1346
		1347	$cf::PLAYER{$_[0]} || do {
		1348	# rename old playerfiles to new ones
		1349	#TODO: remove when no longer required
		1350	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1351	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1352	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1353	aio_unlink +(playerdir $login) . "/$login.pl";
		1354
		1355	my $f = new_from_file cf::object::thawer path $login
		1356	or return;
		1357
		1358	$f->next;
		1359	my $pl = cf::player::load_pl $f
		1360	or return;
		1361	local $cf::PLAYER_LOADING{$login} = $pl;
		1362	$f->resolve_delayed_derefs;
		1363	$cf::PLAYER{$login} = $pl
		1364	}
		1365	}
		1366	}
		1367
		1368	sub save($) {
		1369	my ($pl) = @_;
		1370
		1371	return if $pl->{deny_save};
		1372
		1373	my $path = path $pl;
		1374	my $guard = cf::lock_acquire "user_save:$path";
		1375
		1376	return if $pl->{deny_save};
		1377
		1378	aio_mkdir playerdir $pl, 0770;
		1379	$pl->{last_save} = $cf::RUNTIME;
		1380
		1381	$pl->save_pl ($path);
		1382	cf::cede_to_tick;
		1383	}
		1384
		1385	sub new($) {
		1386	my ($login) = @_;
		1387
		1388	my $self = create;
		1389
		1390	$self->ob->name ($login);
		1391	$self->{deny_save} = 1;
		1392
		1393	$cf::PLAYER{$login} = $self;
		1394
		1395	$self
		1396	}
		1397
		1398	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1399
		1400	=cut
		1401
		1402	sub send_msg {
		1403	my $ns = shift->ns
		1404	or return;
		1405	$ns->send_msg (@_);
		1406	}
		1407
		1408	=item $pl->quit_character
		1409
		1410	Nukes the player without looking back. If logged in, the connection will
		1411	be destroyed. May block for a long time.
		1412
		1413	=cut
		1414
		1415	sub quit_character {
		1416	my ($pl) = @_;
		1417
		1418	my $name = $pl->ob->name;
		1419
		1420	$pl->{deny_save} = 1;
		1421	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1422
		1423	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1424	$pl->deactivate;
		1425	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1426	$pl->ns->destroy if $pl->ns;
		1427
		1428	my $path = playerdir $pl;
		1429	my $temp = "$path~$cf::RUNTIME~deleting~";
		1430	aio_rename $path, $temp;
		1431	delete $cf::PLAYER{$pl->ob->name};
		1432	$pl->destroy;
		1433
		1434	my $prefix = qr<^~\Q$name\E/>;
		1435
		1436	# nuke player maps
		1437	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1438
		1439	IO::AIO::aio_rmtree $temp;
		1440	}
		1441
		1442	=item $pl->kick
		1443
		1444	Kicks a player out of the game. This destroys the connection.
		1445
		1446	=cut
		1447
		1448	sub kick {
		1449	my ($pl, $kicker) = @_;
		1450
		1451	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1452	$pl->killer ("kicked");
		1453	$pl->ns->destroy;
		1454	}
		1455
		1456	=item cf::player::list_logins
		1457
		1458	Returns am arrayref of all valid playernames in the system, can take a
		1459	while and may block, so not sync_job-capable, ever.
		1460
		1461	=cut
		1462
		1463	sub list_logins {
		1464	my $dirs = aio_readdir $PLAYERDIR
		1465	or return [];
		1466
		1467	my @logins;
		1468
		1469	for my $login (@$dirs) {
		1470	my $path = path $login;
		1471
		1472	# a .pst is a dead give-away for a valid player
		1473	unless (-e "$path.pst") {
		1474	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1475	aio_read $fh, 0, 512, my $buf, 0 or next;
		1476	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1477	}
		1478
		1479	utf8::decode $login;
		1480	push @logins, $login;
		1481	}
		1482
		1483	\@logins
		1484	}
		1485
		1486	=item $player->maps
		1487
		1488	Returns an arrayref of map paths that are private for this
		1489	player. May block.
		1490
		1491	=cut
		1492
		1493	sub maps($) {
		1494	my ($pl) = @_;
		1495
		1496	$pl = ref $pl ? $pl->ob->name : $pl;
		1497
		1498	my $files = aio_readdir playerdir $pl
		1499	or return;
		1500
		1501	my @paths;
		1502
		1503	for (@$files) {
		1504	utf8::decode $_;
		1505	next if /\.(?:pl|pst)$/;
		1506	next unless /^$PATH_SEP/o;
		1507
		1508	push @paths, cf::map::normalise "~$pl/$_";
		1509	}
		1510
		1511	\@paths
		1512	}
		1513
		1514	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1515
		1516	Expand crossfire pod fragments into protocol xml.
		1517
		1518	=cut
		1519
		1520	sub expand_cfpod {
		1521	((my $self), (local $_)) = @_;
		1522
		1523	# escape & and <
		1524	s/&/&amp;/g;
		1525	s/(?<![BIUGHT])</&lt;/g;
		1526
		1527	# this is buggy, it needs to properly take care of nested <'s
		1528
		1529	1 while
		1530	# replace B<>, I<>, U<> etc.
		1531	s/B<([^\>]*)>/<b>$1<\/b>/
		1532	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1533	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1534	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1535	# replace G<male|female> tags
		1536	|| s{G<([^>|]*)\|([^>]*)>}{
		1537	$self->gender ? $2 : $1
		1538	}ge
		1539	# replace H<hint text>
		1540	|| s{H<([^\>]*)>}
		1541	{
		1542	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1543	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1544	"")
		1545	[$self->{hintmode}]
		1546	}ge;
		1547
		1548	# create single paragraphs (very hackish)
		1549	s/(?<=\S)\n(?=\w)/ /g;
		1550
		1551	# compress some whitespace
		1552	s/\s+\n/\n/g; # ws line-ends
		1553	s/\n\n+/\n/g; # double lines
		1554	s/^\n+//; # beginning lines
		1555	s/\n+$//; # ending lines
		1556
		1557	$_
		1558	}
		1559
		1560	sub hintmode {
		1561	$_[0]{hintmode} = $_[1] if @_ > 1;
		1562	$_[0]{hintmode}
		1563	}
		1564
		1565	=item $player->ext_reply ($msgid, @msg)
		1566
		1567	Sends an ext reply to the player.
		1568
		1569	=cut
		1570
		1571	sub ext_reply($$@) {
		1572	my ($self, $id, @msg) = @_;
		1573
		1574	$self->ns->ext_reply ($id, @msg)
		1575	}
		1576
		1577	=item $player->ext_msg ($type, @msg)
		1578
		1579	Sends an ext event to the client.
		1580
		1581	=cut
		1582
		1583	sub ext_msg($$@) {
		1584	my ($self, $type, @msg) = @_;
		1585
		1586	$self->ns->ext_msg ($type, @msg);
		1587	}
		1588
		1589	=head3 cf::region
		1590
		1591	=over 4
		1592
		1593	=cut
		1594
		1595	package cf::region;
		1596
		1597	=item cf::region::find_by_path $path
		1598
		1599	Tries to decuce the likely region for a map knowing only its path.
		1600
		1601	=cut
		1602
		1603	sub find_by_path($) {
958	my ($path) = @_;	1604	my ($path) = @_;
959		1605
960	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1606	my ($match, $specificity);
961	my $base = $1;
962	my $pkg = $1;
963	$pkg =~ s/[^[:word:]]/_/g;
964	$pkg = "ext::$pkg";
965		1607
966	warn "loading '$path' into '$pkg'\n";	1608	for my $region (list) {
967		1609	if ($region->{match} && $path =~ $region->{match}) {
968	open my $fh, "<:utf8", $path	1610	($match, $specificity) = ($region, $region->specificity)
969	or die "$path: $!";	1611	if $region->specificity > $specificity;
970		1612	}
971	my $source =
972	"package $pkg; use strict; use utf8;\n"
973	. "#line 1 \"$path\"\n{\n"
974	. (do { local $/; <$fh> })
975	. "\n};\n1";
976
977	eval $source
978	or die $@ ? "$path: $@\n"
979	: "extension disabled.\n";
980
981	push @exts, $pkg;
982	$ext_pkg{$base} = $pkg;
983
984	# no strict 'refs';
985	# @{"$pkg\::ISA"} = ext::;
986
987	register $base, $pkg;
988	}
989
990	sub unload_extension {
991	my ($pkg) = @_;
992
993	warn "removing extension $pkg\n";
994
995	# remove hooks
996	#TODO
997	# for my $idx (0 .. $#PLUGIN_EVENT) {
998	# delete $hook[$idx]{$pkg};
999	# }	1613	}
1000		1614
1001	# remove commands	1615	$match
1002	for my $name (keys %COMMAND) {
1003	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1004
1005	if (@cb) {
1006	$COMMAND{$name} = \@cb;
1007	} else {
1008	delete $COMMAND{$name};
1009	}
1010	}
1011
1012	# remove extcmds
1013	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1014	delete $EXTCMD{$name};
1015	}
1016
1017	if (my $cb = $pkg->can ("unload")) {
1018	eval {
1019	$cb->($pkg);
1020	1
1021	} or warn "$pkg unloaded, but with errors: $@";
1022	}
1023
1024	Symbol::delete_package $pkg;
1025	}
1026
1027	sub load_extensions {
1028	for my $ext (<$LIBDIR/*.ext>) {
1029	next unless -r $ext;
1030	eval {
1031	load_extension $ext;
1032	1
1033	} or warn "$ext not loaded: $@";
1034	}
1035	}
1036
1037	#############################################################################
1038	# load/save/clean perl data associated with a map
1039
1040	*cf::mapsupport::on_clean = sub {
1041	my ($map) = @_;
1042
1043	my $path = $map->tmpname;
1044	defined $path or return;
1045
1046	unlink "$path.pst";
1047	};
1048
1049	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1050
1051	#############################################################################
1052	# load/save perl data associated with player->ob objects
1053
1054	sub all_objects(@) {
1055	@_, map all_objects ($_->inv), @_
1056	}
1057
1058	# TODO: compatibility cruft, remove when no longer needed
1059	cf::player->attach (
1060	on_load => sub {
1061	my ($pl, $path) = @_;
1062
1063	for my $o (all_objects $pl->ob) {
1064	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1065	$o->set_ob_key_value ("_perl_data");
1066
1067	%$o = %{ Storable::thaw pack "H*", $value };
1068	}
1069	}
1070	},
1071	);
1072
1073	#############################################################################
1074
1075	=head2 CORE EXTENSIONS
1076
1077	Functions and methods that extend core crossfire objects.
1078
1079	=head3 cf::player
1080
1081	=over 4
1082
1083	=item cf::player::exists $login
1084
1085	Returns true when the given account exists.
1086
1087	=cut
1088
1089	sub cf::player::exists($) {
1090	cf::player::find $_[0]
1091	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1092	}
1093
1094	=item $player->ext_reply ($msgid, $msgtype, %msg)
1095
1096	Sends an ext reply to the player.
1097
1098	=cut
1099
1100	sub cf::player::ext_reply($$$%) {
1101	my ($self, $id, %msg) = @_;
1102
1103	$msg{msgid} = $id;
1104
1105	$self->send ("ext " . to_json \%msg);
1106	}	1616	}
1107		1617
1108	=back	1618	=back
1109
1110		1619
1111	=head3 cf::map	1620	=head3 cf::map
1112		1621
1113	=over 4	1622	=over 4
1114		1623
…		…
1117	package cf::map;	1626	package cf::map;
1118		1627
1119	use Fcntl;	1628	use Fcntl;
1120	use Coro::AIO;	1629	use Coro::AIO;
1121		1630
		1631	use overload
		1632	'""' => \&as_string,
		1633	fallback => 1;
		1634
1122	our $MAX_RESET = 3600;	1635	our $MAX_RESET = 3600;
1123	our $DEFAULT_RESET = 3000;	1636	our $DEFAULT_RESET = 3000;
1124		1637
1125	sub generate_random_map {	1638	sub generate_random_map {
1126	my ($path, $rmp) = @_;	1639	my ($self, $rmp) = @_;
1127
1128	# mit "rum" bekleckern, nicht	1640	# mit "rum" bekleckern, nicht
1129	cf::map::_create_random_map	1641	$self->_create_random_map (
1130	$path,
1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1642	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1643	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1644	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1134	$rmp->{exit_on_final_map},	1645	$rmp->{exit_on_final_map},
1135	$rmp->{xsize}, $rmp->{ysize},	1646	$rmp->{xsize}, $rmp->{ysize},
1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1647	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1648	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1649	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1139	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1650	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1651	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1141	(cf::region::find $rmp->{region})	1652	(cf::region::find $rmp->{region}), $rmp->{custom}
		1653	)
		1654	}
		1655
		1656	=item cf::map->register ($regex, $prio)
		1657
		1658	Register a handler for the map path matching the given regex at the
		1659	givne priority (higher is better, built-in handlers have priority 0, the
		1660	default).
		1661
		1662	=cut
		1663
		1664	sub register {
		1665	my (undef, $regex, $prio) = @_;
		1666	my $pkg = caller;
		1667
		1668	no strict;
		1669	push @{"$pkg\::ISA"}, __PACKAGE__;
		1670
		1671	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1672	}
		1673
		1674	# also paths starting with '/'
		1675	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1676
		1677	sub thawer_merge {
		1678	my ($self, $merge) = @_;
		1679
		1680	# we have to keep some variables in memory intact
		1681	local $self->{path};
		1682	local $self->{load_path};
		1683
		1684	$self->SUPER::thawer_merge ($merge);
		1685	}
		1686
		1687	sub normalise {
		1688	my ($path, $base) = @_;
		1689
		1690	$path = "$path"; # make sure its a string
		1691
		1692	$path =~ s/\.map$//;
		1693
		1694	# map plan:
		1695	#
		1696	# /! non-realised random map exit (special hack!)
		1697	# {... are special paths that are not being touched
		1698	# ?xxx/... are special absolute paths
		1699	# ?random/... random maps
		1700	# /... normal maps
		1701	# ~user/... per-player map of a specific user
		1702
		1703	$path =~ s/$PATH_SEP/\//go;
		1704
		1705	# treat it as relative path if it starts with
		1706	# something that looks reasonable
		1707	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1708	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1709
		1710	$base =~ s{[^/]+/?$}{};
		1711	$path = "$base/$path";
		1712	}
		1713
		1714	for ($path) {
		1715	redo if s{//}{/};
		1716	redo if s{/\.?/}{/};
		1717	redo if s{/[^/]+/\.\./}{/};
		1718	}
		1719
		1720	$path
		1721	}
		1722
		1723	sub new_from_path {
		1724	my (undef, $path, $base) = @_;
		1725
		1726	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1727
		1728	$path = normalise $path, $base;
		1729
		1730	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1731	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1732	my $self = bless cf::map::new, $pkg;
		1733	$self->{path} = $path; $self->path ($path);
		1734	$self->init; # pass $1 etc.
		1735	return $self;
		1736	}
		1737	}
		1738
		1739	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1740	()
		1741	}
		1742
		1743	sub init {
		1744	my ($self) = @_;
		1745
		1746	$self
		1747	}
		1748
		1749	sub as_string {
		1750	my ($self) = @_;
		1751
		1752	"$self->{path}"
		1753	}
		1754
		1755	# the displayed name, this is a one way mapping
		1756	sub visible_name {
		1757	&as_string
		1758	}
		1759
		1760	# the original (read-only) location
		1761	sub load_path {
		1762	my ($self) = @_;
		1763
		1764	"$MAPDIR/$self->{path}.map"
		1765	}
		1766
		1767	# the temporary/swap location
		1768	sub save_path {
		1769	my ($self) = @_;
		1770
		1771	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1772	"$TMPDIR/$path.map"
		1773	}
		1774
		1775	# the unique path, undef == no special unique path
		1776	sub uniq_path {
		1777	my ($self) = @_;
		1778
		1779	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1780	"$UNIQUEDIR/$path"
1142	}	1781	}
1143		1782
1144	# and all this just because we cannot iterate over	1783	# and all this just because we cannot iterate over
1145	# all maps in C++...	1784	# all maps in C++...
1146	sub change_all_map_light {	1785	sub change_all_map_light {
…		…
1148		1787
1149	$_->change_map_light ($change)	1788	$_->change_map_light ($change)
1150	for grep $_->outdoor, values %cf::MAP;	1789	for grep $_->outdoor, values %cf::MAP;
1151	}	1790	}
1152		1791
		1792	sub decay_objects {
		1793	my ($self) = @_;
		1794
		1795	return if $self->{deny_reset};
		1796
		1797	$self->do_decay_objects;
		1798	}
		1799
		1800	sub unlink_save {
		1801	my ($self) = @_;
		1802
		1803	utf8::encode (my $save = $self->save_path);
		1804	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1805	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1806	}
		1807
1153	sub try_load_header($) {	1808	sub load_header_from($) {
1154	my ($path) = @_;	1809	my ($self, $path) = @_;
1155		1810
1156	utf8::encode $path;	1811	utf8::encode $path;
1157	aio_open $path, O_RDONLY, 0	1812	my $f = new_from_file cf::object::thawer $path
1158	or return;	1813	or return;
1159		1814
1160	my $map = cf::map::new	1815	$self->_load_header ($f)
1161	or return;	1816	or return;
1162		1817
1163	# for better error messages only, will be overwritten	1818	local $MAP_LOADING{$self->{path}} = $self;
1164	$map->path ($path);	1819	$f->resolve_delayed_derefs;
1165		1820
1166	$map->load_header ($path)	1821	$self->{load_path} = $path;
		1822
		1823	1
		1824	}
		1825
		1826	sub load_header_orig {
		1827	my ($self) = @_;
		1828
		1829	$self->load_header_from ($self->load_path)
		1830	}
		1831
		1832	sub load_header_temp {
		1833	my ($self) = @_;
		1834
		1835	$self->load_header_from ($self->save_path)
		1836	}
		1837
		1838	sub prepare_temp {
		1839	my ($self) = @_;
		1840
		1841	$self->last_access ((delete $self->{last_access})
		1842	|| $cf::RUNTIME); #d#
		1843	# safety
		1844	$self->{instantiate_time} = $cf::RUNTIME
		1845	if $self->{instantiate_time} > $cf::RUNTIME;
		1846	}
		1847
		1848	sub prepare_orig {
		1849	my ($self) = @_;
		1850
		1851	$self->{load_original} = 1;
		1852	$self->{instantiate_time} = $cf::RUNTIME;
		1853	$self->last_access ($cf::RUNTIME);
		1854	$self->instantiate;
		1855	}
		1856
		1857	sub load_header {
		1858	my ($self) = @_;
		1859
		1860	if ($self->load_header_temp) {
		1861	$self->prepare_temp;
		1862	} else {
		1863	$self->load_header_orig
1167	or return;	1864	or return;
		1865	$self->prepare_orig;
		1866	}
1168		1867
1169	$map->{load_path} = $path;	1868	$self->{deny_reset} = 1
		1869	if $self->no_reset;
1170		1870
1171	$map	1871	$self->default_region (cf::region::find_by_path $self->{path})
		1872	unless $self->default_region;
		1873
		1874	1
1172	}	1875	}
1173		1876
1174	sub find;	1877	sub find;
1175	sub find {	1878	sub find {
1176	my ($path, $origin) = @_;	1879	my ($path, $origin) = @_;
1177		1880
1178	#warn "find<$path,$origin>\n";#d#
1179
1180	$path = new cf::path $path, $origin && $origin->path;	1881	$path = normalise $path, $origin && $origin->path;
1181	my $key = $path->as_string;
1182		1882
		1883	cf::lock_wait "map_data:$path";#d#remove
1183	cf::lock_wait "map_find:$key";	1884	cf::lock_wait "map_find:$path";
1184		1885
1185	$cf::MAP{$key} || do {	1886	$cf::MAP{$path} || do {
1186	my $guard = cf::lock_acquire "map_find:$key";	1887	my $guard1 = cf::lock_acquire "map_find:$path";
		1888	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1187		1889
1188	# do it the slow way	1890	my $map = new_from_path cf::map $path
1189	my $map = try_load_header $path->save_path;
1190
1191	Coro::cede;
1192
1193	if ($map) {
1194	$map->last_access ((delete $map->{last_access})
1195	|| $cf::RUNTIME); #d#
1196	# safety
1197	$map->{instantiate_time} = $cf::RUNTIME
1198	if $map->{instantiate_time} > $cf::RUNTIME;
1199	} else {
1200	if (my $rmp = $path->random_map_params) {
1201	$map = generate_random_map $key, $rmp;
1202	} else {
1203	$map = try_load_header $path->load_path;
1204	}
1205
1206	$map or return;	1891	or return;
1207		1892
1208	$map->{load_original} = 1;
1209	$map->{instantiate_time} = $cf::RUNTIME;
1210	$map->last_access ($cf::RUNTIME);
1211	$map->instantiate;
1212
1213	# per-player maps become, after loading, normal maps
1214	$map->per_player (0) if $path->{user_rel};
1215	}
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	1893	$map->{last_save} = $cf::RUNTIME;
1220		1894
1221	Coro::cede;	1895	$map->load_header
		1896	or return;
1222		1897
1223	if ($map->should_reset) {	1898	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1899	# doing this can freeze the server in a sync job, obviously
		1900	#$cf::WAIT_FOR_TICK->wait;
		1901	undef $guard1;
		1902	undef $guard2;
1224	$map->reset;	1903	$map->reset;
1225	undef $guard;
1226	$map = find $path	1904	return find $path;
1227	or return;
1228	}	1905	}
1229		1906
1230	$cf::MAP{$key} = $map	1907	$cf::MAP{$path} = $map
1231	}	1908	}
1232	}	1909	}
		1910
		1911	sub pre_load { }
		1912	sub post_load { }
1233		1913
1234	sub load {	1914	sub load {
1235	my ($self) = @_;	1915	my ($self) = @_;
1236		1916
		1917	local $self->{deny_reset} = 1; # loading can take a long time
		1918
1237	my $path = $self->{path};	1919	my $path = $self->{path};
		1920
		1921	{
1238	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1922	my $guard = cf::lock_acquire "map_data:$path";
1239		1923
		1924	return unless $self->valid;
1240	return if $self->in_memory != cf::MAP_SWAPPED;	1925	return unless $self->in_memory == cf::MAP_SWAPPED;
1241		1926
1242	$self->in_memory (cf::MAP_LOADING);	1927	$self->in_memory (cf::MAP_LOADING);
1243		1928
1244	$self->alloc;	1929	$self->alloc;
1245	$self->load_objects ($self->{load_path}, 1)	1930
		1931	$self->pre_load;
		1932	cf::cede_to_tick;
		1933
		1934	my $f = new_from_file cf::object::thawer $self->{load_path};
		1935	$f->skip_block;
		1936	$self->_load_objects ($f)
1246	or return;	1937	or return;
1247		1938
1248	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1939	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1249	if delete $self->{load_original};	1940	if delete $self->{load_original};
1250		1941
1251	if (my $uniq = $path->uniq_path) {	1942	if (my $uniq = $self->uniq_path) {
1252	utf8::encode $uniq;	1943	utf8::encode $uniq;
1253	if (aio_open $uniq, O_RDONLY, 0) {	1944	unless (aio_stat $uniq) {
		1945	if (my $f = new_from_file cf::object::thawer $uniq) {
1254	$self->clear_unique_items;	1946	$self->clear_unique_items;
1255	$self->load_objects ($uniq, 0);	1947	$self->_load_objects ($f);
		1948	$f->resolve_delayed_derefs;
		1949	}
1256	}	1950	}
1257	}	1951	}
1258		1952
1259	Coro::cede;	1953	$f->resolve_delayed_derefs;
1260		1954
		1955	cf::cede_to_tick;
1261	# now do the right thing for maps	1956	# now do the right thing for maps
1262	$self->link_multipart_objects;	1957	$self->link_multipart_objects;
1263
1264	if ($self->{path}->is_style_map) {
1265	$self->{deny_save} = 1;
1266	$self->{deny_reset} = 1;
1267	} else {
1268	$self->fix_auto_apply;
1269	$self->decay_objects;
1270	$self->update_buttons;
1271	$self->set_darkness_map;
1272	$self->difficulty ($self->estimate_difficulty)	1958	$self->difficulty ($self->estimate_difficulty)
1273	unless $self->difficulty;	1959	unless $self->difficulty;
		1960	cf::cede_to_tick;
		1961
		1962	unless ($self->{deny_activate}) {
		1963	$self->decay_objects;
		1964	$self->fix_auto_apply;
		1965	$self->update_buttons;
		1966	cf::cede_to_tick;
		1967	$self->set_darkness_map;
		1968	cf::cede_to_tick;
1274	$self->activate;	1969	$self->activate;
1275	}	1970	}
1276		1971
1277	Coro::cede;	1972	$self->{last_save} = $cf::RUNTIME;
		1973	$self->last_access ($cf::RUNTIME);
1278		1974
1279	$self->in_memory (cf::MAP_IN_MEMORY);	1975	$self->in_memory (cf::MAP_IN_MEMORY);
		1976	}
		1977
		1978	$self->post_load;
		1979	}
		1980
		1981	sub customise_for {
		1982	my ($self, $ob) = @_;
		1983
		1984	return find "~" . $ob->name . "/" . $self->{path}
		1985	if $self->per_player;
		1986
		1987	# return find "?party/" . $ob->name . "/" . $self->{path}
		1988	# if $self->per_party;
		1989
		1990	$self
		1991	}
		1992
		1993	# find and load all maps in the 3x3 area around a map
		1994	sub load_neighbours {
		1995	my ($map) = @_;
		1996
		1997	my @neigh; # diagonal neighbours
		1998
		1999	for (0 .. 3) {
		2000	my $neigh = $map->tile_path ($_)
		2001	or next;
		2002	$neigh = find $neigh, $map
		2003	or next;
		2004	$neigh->load;
		2005
		2006	push @neigh,
		2007	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2008	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2009	}
		2010
		2011	for (grep defined $_->[0], @neigh) {
		2012	my ($path, $origin) = @$_;
		2013	my $neigh = find $path, $origin
		2014	or next;
		2015	$neigh->load;
		2016	}
1280	}	2017	}
1281		2018
1282	sub find_sync {	2019	sub find_sync {
1283	my ($path, $origin) = @_;	2020	my ($path, $origin) = @_;
1284		2021
1285	cf::sync_job { cf::map::find $path, $origin }	2022	cf::sync_job { find $path, $origin }
1286	}	2023	}
1287		2024
1288	sub do_load_sync {	2025	sub do_load_sync {
1289	my ($map) = @_;	2026	my ($map) = @_;
1290		2027
		2028	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2029	if $Coro::current == $Coro::main;
		2030
1291	cf::sync_job { $map->load };	2031	cf::sync_job { $map->load };
		2032	}
		2033
		2034	our %MAP_PREFETCH;
		2035	our $MAP_PREFETCHER = undef;
		2036
		2037	sub find_async {
		2038	my ($path, $origin, $load) = @_;
		2039
		2040	$path = normalise $path, $origin && $origin->{path};
		2041
		2042	if (my $map = $cf::MAP{$path}) {
		2043	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2044	}
		2045
		2046	$MAP_PREFETCH{$path} |= $load;
		2047
		2048	$MAP_PREFETCHER ||= cf::async {
		2049	while (%MAP_PREFETCH) {
		2050	while (my ($k, $v) = each %MAP_PREFETCH) {
		2051	if (my $map = find $k) {
		2052	$map->load if $v;
		2053	}
		2054
		2055	delete $MAP_PREFETCH{$k};
		2056	}
		2057	}
		2058	undef $MAP_PREFETCHER;
		2059	};
		2060	$MAP_PREFETCHER->prio (6);
		2061
		2062	()
1292	}	2063	}
1293		2064
1294	sub save {	2065	sub save {
1295	my ($self) = @_;	2066	my ($self) = @_;
1296		2067
1297	my $lock = cf::lock_acquire "map_data:" . $self->path;	2068	my $lock = cf::lock_acquire "map_data:$self->{path}";
1298		2069
1299	$self->{last_save} = $cf::RUNTIME;	2070	$self->{last_save} = $cf::RUNTIME;
1300		2071
1301	return unless $self->dirty;	2072	return unless $self->dirty;
1302		2073
1303	my $save = $self->{path}->save_path; utf8::encode $save;	2074	my $save = $self->save_path; utf8::encode $save;
1304	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2075	my $uniq = $self->uniq_path; utf8::encode $uniq;
1305		2076
1306	$self->{load_path} = $save;	2077	$self->{load_path} = $save;
1307		2078
1308	return if $self->{deny_save};	2079	return if $self->{deny_save};
1309		2080
1310	local $self->{last_access} = $self->last_access;#d#	2081	local $self->{last_access} = $self->last_access;#d#
1311		2082
		2083	cf::async {
		2084	$_->contr->save for $self->players;
		2085	};
		2086
1312	if ($uniq) {	2087	if ($uniq) {
1313	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2088	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1314	$self->save_objects ($uniq, cf::IO_UNIQUES);	2089	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1315	} else {	2090	} else {
1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2091	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1317	}	2092	}
1318	}	2093	}
1319		2094
1320	sub swap_out {	2095	sub swap_out {
1321	my ($self) = @_;	2096	my ($self) = @_;
1322		2097
1323	# save first because save cedes	2098	# save first because save cedes
1324	$self->save;	2099	$self->save;
1325		2100
1326	my $lock = cf::lock_acquire "map_data:" . $self->path;	2101	my $lock = cf::lock_acquire "map_data:$self->{path}";
1327		2102
1328	return if $self->players;	2103	return if $self->players;
1329	return if $self->in_memory != cf::MAP_IN_MEMORY;	2104	return if $self->in_memory != cf::MAP_IN_MEMORY;
1330	return if $self->{deny_save};	2105	return if $self->{deny_save};
1331		2106
		2107	$self->in_memory (cf::MAP_SWAPPED);
		2108
		2109	$self->deactivate;
		2110	$_->clear_links_to ($self) for values %cf::MAP;
1332	$self->clear;	2111	$self->clear;
1333	$self->in_memory (cf::MAP_SWAPPED);
1334	}	2112	}
1335		2113
1336	sub reset_at {	2114	sub reset_at {
1337	my ($self) = @_;	2115	my ($self) = @_;
1338		2116
1339	# TODO: safety, remove and allow resettable per-player maps	2117	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};
1341	return 1e99 if $self->{deny_reset};	2118	return 1e99 if $self->{deny_reset};
1342		2119
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2120	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2121	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		2122
…		…
1350	my ($self) = @_;	2127	my ($self) = @_;
1351		2128
1352	$self->reset_at <= $cf::RUNTIME	2129	$self->reset_at <= $cf::RUNTIME
1353	}	2130	}
1354		2131
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	2132	sub reset {
1377	my ($self) = @_;	2133	my ($self) = @_;
1378		2134
1379	my $lock = cf::lock_acquire "map_data:" . $self->path;	2135	my $lock = cf::lock_acquire "map_data:$self->{path}";
1380		2136
1381	return if $self->players;	2137	return if $self->players;
1382	return if $self->{path}{user_rel};#d#
1383		2138
1384	warn "resetting map ", $self->path;#d#	2139	warn "resetting map ", $self->path;
		2140
		2141	$self->in_memory (cf::MAP_SWAPPED);
		2142
		2143	# need to save uniques path
		2144	unless ($self->{deny_save}) {
		2145	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2146
		2147	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2148	if $uniq;
		2149	}
1385		2150
1386	delete $cf::MAP{$self->path};	2151	delete $cf::MAP{$self->path};
1387		2152
		2153	$self->deactivate;
1388	$_->clear_links_to ($self) for values %cf::MAP;	2154	$_->clear_links_to ($self) for values %cf::MAP;
		2155	$self->clear;
1389		2156
1390	$self->unlink_save;	2157	$self->unlink_save;
1391	$self->destroy;	2158	$self->destroy;
1392	}	2159	}
1393		2160
1394	my $nuke_counter = "aaaa";	2161	my $nuke_counter = "aaaa";
1395		2162
1396	sub nuke {	2163	sub nuke {
1397	my ($self) = @_;	2164	my ($self) = @_;
1398		2165
		2166	{
		2167	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2168
		2169	delete $cf::MAP{$self->path};
		2170
		2171	$self->unlink_save;
		2172
		2173	bless $self, "cf::map";
		2174	delete $self->{deny_reset};
1399	$self->{deny_save} = 1;	2175	$self->{deny_save} = 1;
1400	$self->reset_timeout (1);	2176	$self->reset_timeout (1);
1401	$self->rename ("{nuke}/" . ($nuke_counter++));	2177	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2178
		2179	$cf::MAP{$self->path} = $self;
		2180	}
		2181
1402	$self->reset; # polite request, might not happen	2182	$self->reset; # polite request, might not happen
1403	}	2183	}
1404		2184
1405	sub customise_for {	2185	=item $maps = cf::map::tmp_maps
1406	my ($map, $ob) = @_;
1407		2186
1408	if ($map->per_player) {	2187	Returns an arrayref with all map paths of currently instantiated and saved
1409	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2188	maps. May block.
		2189
		2190	=cut
		2191
		2192	sub tmp_maps() {
1410	}	2193	[
1411		2194	map {
1412	$map	2195	utf8::decode $_;
		2196	/\.map$/
		2197	? normalise $_
		2198	: ()
		2199	} @{ aio_readdir $TMPDIR or [] }
		2200	]
1413	}	2201	}
1414		2202
1415	sub emergency_save {	2203	=item $maps = cf::map::random_maps
1416	my $freeze_guard = cf::freeze_mainloop;
1417		2204
1418	warn "enter emergency map save\n";	2205	Returns an arrayref with all map paths of currently instantiated and saved
		2206	random maps. May block.
1419		2207
1420	cf::sync_job {	2208	=cut
1421	warn "begin emergency map save\n";
1422	$_->save for values %cf::MAP;
1423	};
1424		2209
1425	warn "end emergency map save\n";	2210	sub random_maps() {
		2211	[
		2212	map {
		2213	utf8::decode $_;
		2214	/\.map$/
		2215	? normalise "?random/$_"
		2216	: ()
		2217	} @{ aio_readdir $RANDOMDIR or [] }
		2218	]
		2219	}
		2220
		2221	=item cf::map::unique_maps
		2222
		2223	Returns an arrayref of paths of all shared maps that have
		2224	instantiated unique items. May block.
		2225
		2226	=cut
		2227
		2228	sub unique_maps() {
		2229	[
		2230	map {
		2231	utf8::decode $_;
		2232	/\.map$/
		2233	? normalise $_
		2234	: ()
		2235	} @{ aio_readdir $UNIQUEDIR or [] }
		2236	]
1426	}	2237	}
1427		2238
1428	package cf;	2239	package cf;
1429		2240
1430	=back	2241	=back
1431		2242
		2243	=head3 cf::object
		2244
		2245	=cut
		2246
		2247	package cf::object;
		2248
		2249	=over 4
		2250
		2251	=item $ob->inv_recursive
		2252
		2253	Returns the inventory of the object _and_ their inventories, recursively.
		2254
		2255	=cut
		2256
		2257	sub inv_recursive_;
		2258	sub inv_recursive_ {
		2259	map { $_, inv_recursive_ $_->inv } @_
		2260	}
		2261
		2262	sub inv_recursive {
		2263	inv_recursive_ inv $_[0]
		2264	}
		2265
		2266	=item $ref = $ob->ref
		2267
		2268	creates and returns a persistent reference to an objetc that can be stored as a string.
		2269
		2270	=item $ob = cf::object::deref ($refstring)
		2271
		2272	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2273	even if the object actually exists. May block.
		2274
		2275	=cut
		2276
		2277	sub deref {
		2278	my ($ref) = @_;
		2279
		2280	# temporary compatibility#TODO#remove
		2281	$ref =~ s{^<}{player/<};
		2282
		2283	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2284	my ($uuid, $name) = ($1, $2);
		2285	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2286	or return;
		2287	$pl->ob->uuid eq $uuid
		2288	or return;
		2289
		2290	$pl->ob
		2291	} else {
		2292	warn "$ref: cannot resolve object reference\n";
		2293	undef
		2294	}
		2295	}
		2296
		2297	package cf;
		2298
		2299	=back
1432		2300
1433	=head3 cf::object::player	2301	=head3 cf::object::player
1434		2302
1435	=over 4	2303	=over 4
1436		2304
…		…
1450		2318
1451	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2319	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1452		2320
1453	if ($self->{record_replies}) {	2321	if ($self->{record_replies}) {
1454	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2322	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2323
1455	} else {	2324	} else {
		2325	my $pl = $self->contr;
		2326
		2327	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2328	my $dialog = $pl->{npc_dialog};
		2329	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2330
		2331	} else {
1456	$msg = $npc->name . " says: $msg" if $npc;	2332	$msg = $npc->name . " says: $msg" if $npc;
1457	$self->message ($msg, $flags);	2333	$self->message ($msg, $flags);
		2334	}
1458	}	2335	}
		2336	}
		2337
		2338	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2339
		2340	=cut
		2341
		2342	sub cf::object::send_msg {
		2343	my $pl = shift->contr
		2344	or return;
		2345	$pl->send_msg (@_);
1459	}	2346	}
1460		2347
1461	=item $player_object->may ("access")	2348	=item $player_object->may ("access")
1462		2349
1463	Returns wether the given player is authorized to access resource "access"	2350	Returns wether the given player is authorized to access resource "access"
…		…
1476		2363
1477	=item $player_object->enter_link	2364	=item $player_object->enter_link
1478		2365
1479	Freezes the player and moves him/her to a special map (C<{link}>).	2366	Freezes the player and moves him/her to a special map (C<{link}>).
1480		2367
1481	The player should be reaosnably safe there for short amounts of time. You	2368	The player should be reasonably safe there for short amounts of time. You
1482	I<MUST> call C<leave_link> as soon as possible, though.	2369	I<MUST> call C<leave_link> as soon as possible, though.
1483		2370
		2371	Will never block.
		2372
1484	=item $player_object->leave_link ($map, $x, $y)	2373	=item $player_object->leave_link ($map, $x, $y)
1485		2374
1486	Moves the player out of the specila link map onto the given map. If the	2375	Moves the player out of the special C<{link}> map onto the specified
1487	map is not valid (or omitted), the player will be moved back to the	2376	map. If the map is not valid (or omitted), the player will be moved back
1488	location he/she was before the call to C<enter_link>, or, if that fails,	2377	to the location he/she was before the call to C<enter_link>, or, if that
1489	to the emergency map position.	2378	fails, to the emergency map position.
1490		2379
1491	Might block.	2380	Might block.
1492		2381
1493	=cut	2382	=cut
		2383
		2384	sub link_map {
		2385	unless ($LINK_MAP) {
		2386	$LINK_MAP = cf::map::find "{link}"
		2387	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2388	$LINK_MAP->load;
		2389	}
		2390
		2391	$LINK_MAP
		2392	}
1494		2393
1495	sub cf::object::player::enter_link {	2394	sub cf::object::player::enter_link {
1496	my ($self) = @_;	2395	my ($self) = @_;
1497		2396
1498	$self->deactivate_recursive;	2397	$self->deactivate_recursive;
1499		2398
1500	return if $self->map == $LINK_MAP;	2399	return if UNIVERSAL::isa $self->map, "ext::map_link";
1501		2400
1502	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2401	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1503	if $self->map;	2402	if $self->map && $self->map->{path} ne "{link}";
1504		2403
1505	$self->enter_map ($LINK_MAP, 20, 20);	2404	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1506	}	2405	}
1507		2406
1508	sub cf::object::player::leave_link {	2407	sub cf::object::player::leave_link {
1509	my ($self, $map, $x, $y) = @_;	2408	my ($self, $map, $x, $y) = @_;
		2409
		2410	return unless $self->contr->active;
1510		2411
1511	my $link_pos = delete $self->{_link_pos};	2412	my $link_pos = delete $self->{_link_pos};
1512		2413
1513	unless ($map) {	2414	unless ($map) {
1514	# restore original map position	2415	# restore original map position
…		…
1528	# use -1 or undef as default coordinates, not 0, 0	2429	# use -1 or undef as default coordinates, not 0, 0
1529	($x, $y) = ($map->enter_x, $map->enter_y)	2430	($x, $y) = ($map->enter_x, $map->enter_y)
1530	if $x <=0 && $y <= 0;	2431	if $x <=0 && $y <= 0;
1531		2432
1532	$map->load;	2433	$map->load;
		2434	$map->load_neighbours;
1533		2435
		2436	return unless $self->contr->active;
1534	$self->activate_recursive;	2437	$self->activate_recursive;
		2438
		2439	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1535	$self->enter_map ($map, $x, $y);	2440	$self->enter_map ($map, $x, $y);
1536	}	2441	}
1537		2442
1538	cf::player->attach (	2443	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1539	on_logout => sub {
1540	my ($pl) = @_;
1541		2444
1542	# abort map switching before logout	2445	Moves the player to the given map-path and coordinates by first freezing
1543	if ($pl->ob->{_link_pos}) {	2446	her, loading and preparing them map, calling the provided $check callback
1544	cf::sync_job {	2447	that has to return the map if sucecssful, and then unfreezes the player on
1545	$pl->ob->leave_link	2448	the new (success) or old (failed) map position. In either case, $done will
1546	};	2449	be called at the end of this process.
1547	}
1548	},
1549	on_login => sub {
1550	my ($pl) = @_;
1551		2450
1552	# try to abort aborted map switching on player login :)
1553	# should happen only on crashes
1554	if ($pl->ob->{_link_pos}) {
1555
1556	$pl->ob->enter_link;
1557	(async {
1558	# we need this sleep as the login has a concurrent enter_exit running
1559	# and this sleep increases chances of the player not ending up in scorn
1560	$pl->ob->reply (undef,
1561	"There was an internal problem at your last logout, "
1562	. "the server will try to bring you to your intended destination in a second.",
1563	cf::NDI_RED);
1564	Coro::Timer::sleep 1;
1565	$pl->ob->leave_link;
1566	})->prio (2);
1567	}
1568	},
1569	);
1570
1571	=item $player_object->goto ($path, $x, $y)
1572
1573	=cut	2451	=cut
		2452
		2453	our $GOTOGEN;
1574		2454
1575	sub cf::object::player::goto {	2455	sub cf::object::player::goto {
1576	my ($self, $path, $x, $y) = @_;	2456	my ($self, $path, $x, $y, $check, $done) = @_;
		2457
		2458	# do generation counting so two concurrent goto's will be executed in-order
		2459	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1577		2460
1578	$self->enter_link;	2461	$self->enter_link;
1579		2462
1580	(async {	2463	(async {
1581	$path = new cf::path $path;	2464	# *tag paths override both path and x|y
		2465	if ($path =~ /^\*(.*)$/) {
		2466	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2467	my $ob = $obs[rand @obs];
1582		2468
1583	my $map = cf::map::find $path->as_string;	2469	# see if we actually can go there
		2470	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2471	$ob = $obs[rand @obs];
		2472	} else {
		2473	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2474	}
		2475	# else put us there anyways for now #d#
		2476
		2477	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2478	} else {
		2479	($path, $x, $y) = (undef, undef, undef);
		2480	}
		2481	}
		2482
		2483	my $map = eval {
		2484	my $map = defined $path ? cf::map::find $path : undef;
		2485
		2486	if ($map) {
1584	$map = $map->customise_for ($self) if $map;	2487	$map = $map->customise_for ($self);
1585		2488	$map = $check->($map) if $check && $map;
1586	# warn "entering ", $map->path, " at ($x, $y)\n"	2489	} else {
1587	# if $map;
1588
1589	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2490	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2491	}
1590		2492
		2493	$map
		2494	};
		2495
		2496	if ($@) {
		2497	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2498	LOG llevError | logBacktrace, Carp::longmess $@;
		2499	}
		2500
		2501	if ($gen == $self->{_goto_generation}) {
		2502	delete $self->{_goto_generation};
1591	$self->leave_link ($map, $x, $y);	2503	$self->leave_link ($map, $x, $y);
		2504	}
		2505
		2506	$done->() if $done;
1592	})->prio (1);	2507	})->prio (1);
1593	}	2508	}
1594		2509
1595	=item $player_object->enter_exit ($exit_object)	2510	=item $player_object->enter_exit ($exit_object)
1596		2511
…		…
1598		2513
1599	sub parse_random_map_params {	2514	sub parse_random_map_params {
1600	my ($spec) = @_;	2515	my ($spec) = @_;
1601		2516
1602	my $rmp = { # defaults	2517	my $rmp = { # defaults
1603	xsize => 10,	2518	xsize => (cf::rndm 15, 40),
1604	ysize => 10,	2519	ysize => (cf::rndm 15, 40),
		2520	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2521	#layout => string,
1605	};	2522	};
1606		2523
1607	for (split /\n/, $spec) {	2524	for (split /\n/, $spec) {
1608	my ($k, $v) = split /\s+/, $_, 2;	2525	my ($k, $v) = split /\s+/, $_, 2;
1609		2526
…		…
1613	$rmp	2530	$rmp
1614	}	2531	}
1615		2532
1616	sub prepare_random_map {	2533	sub prepare_random_map {
1617	my ($exit) = @_;	2534	my ($exit) = @_;
		2535
		2536	my $guard = cf::lock_acquire "exit_prepare:$exit";
1618		2537
1619	# all this does is basically replace the /! path by	2538	# all this does is basically replace the /! path by
1620	# a new random map path (?random/...) with a seed	2539	# a new random map path (?random/...) with a seed
1621	# that depends on the exit object	2540	# that depends on the exit object
1622		2541
1623	my $rmp = parse_random_map_params $exit->msg;	2542	my $rmp = parse_random_map_params $exit->msg;
1624		2543
1625	if ($exit->map) {	2544	if ($exit->map) {
1626	$rmp->{region} = $exit->map->region_name;	2545	$rmp->{region} = $exit->region->name;
1627	$rmp->{origin_map} = $exit->map->path;	2546	$rmp->{origin_map} = $exit->map->path;
1628	$rmp->{origin_x} = $exit->x;	2547	$rmp->{origin_x} = $exit->x;
1629	$rmp->{origin_y} = $exit->y;	2548	$rmp->{origin_y} = $exit->y;
1630	}	2549	}
1631		2550
1632	$rmp->{random_seed} ||= $exit->random_seed;	2551	$rmp->{random_seed} ||= $exit->random_seed;
1633		2552
1634	my $data = cf::to_json $rmp;	2553	my $data = cf::to_json $rmp;
1635	my $md5 = Digest::MD5::md5_hex $data;	2554	my $md5 = Digest::MD5::md5_hex $data;
		2555	my $meta = "$RANDOMDIR/$md5.meta";
1636		2556
1637	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2557	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1638	aio_write $fh, 0, (length $data), $data, 0;	2558	aio_write $fh, 0, (length $data), $data, 0;
		2559	undef $fh;
		2560	aio_rename "$meta~", $meta;
1639		2561
1640	$exit->slaying ("?random/$md5");	2562	$exit->slaying ("?random/$md5");
1641	$exit->msg (undef);	2563	$exit->msg (undef);
1642	}	2564	}
1643	}	2565	}
…		…
1645	sub cf::object::player::enter_exit {	2567	sub cf::object::player::enter_exit {
1646	my ($self, $exit) = @_;	2568	my ($self, $exit) = @_;
1647		2569
1648	return unless $self->type == cf::PLAYER;	2570	return unless $self->type == cf::PLAYER;
1649		2571
		2572	if ($exit->slaying eq "/!") {
		2573	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2574	# the problem is that $exit might not survive long enough
		2575	# so it needs to be done right now, right here
		2576	cf::sync_job { prepare_random_map $exit };
		2577	}
		2578
		2579	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2580	my $hp = $exit->stats->hp;
		2581	my $sp = $exit->stats->sp;
		2582
1650	$self->enter_link;	2583	$self->enter_link;
		2584
		2585	# if exit is damned, update players death & WoR home-position
		2586	$self->contr->savebed ($slaying, $hp, $sp)
		2587	if $exit->flag (FLAG_DAMNED);
1651		2588
1652	(async {	2589	(async {
1653	$self->deactivate_recursive; # just to be sure	2590	$self->deactivate_recursive; # just to be sure
1654	unless (eval {	2591	unless (eval {
1655	prepare_random_map $exit	2592	$self->goto ($slaying, $hp, $sp);
1656	if $exit->slaying eq "/!";
1657
1658	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1659	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1660		2593
1661	1;	2594	1;
1662	}) {	2595	}) {
1663	$self->message ("Something went wrong deep within the crossfire server. "	2596	$self->message ("Something went wrong deep within the crossfire server. "
1664	. "I'll try to bring you back to the map you were before. "	2597	. "I'll try to bring you back to the map you were before. "
1665	. "Please report this to the dungeon master",	2598	. "Please report this to the dungeon master!",
1666	cf::NDI_UNIQUE | cf::NDI_RED);	2599	cf::NDI_UNIQUE | cf::NDI_RED);
1667		2600
1668	warn "ERROR in enter_exit: $@";	2601	warn "ERROR in enter_exit: $@";
1669	$self->leave_link;	2602	$self->leave_link;
1670	}	2603	}
1671	})->prio (1);	2604	})->prio (1);
…		…
1684		2617
1685	sub cf::client::send_drawinfo {	2618	sub cf::client::send_drawinfo {
1686	my ($self, $text, $flags) = @_;	2619	my ($self, $text, $flags) = @_;
1687		2620
1688	utf8::encode $text;	2621	utf8::encode $text;
1689	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2622	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1690	}	2623	}
1691		2624
		2625	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2626
		2627	Send a drawinfo or msg packet to the client, formatting the msg for the
		2628	client if neccessary. C<$type> should be a string identifying the type of
		2629	the message, with C<log> being the default. If C<$color> is negative, suppress
		2630	the message unless the client supports the msg packet.
		2631
		2632	=cut
		2633
		2634	our %CHANNEL = (
		2635	"c/identify" => {
		2636	id => "identify",
		2637	title => "Identify",
		2638	reply => undef,
		2639	tooltip => "Items recently identified",
		2640	},
		2641	"c/examine" => {
		2642	id => "examine",
		2643	title => "Examine",
		2644	reply => undef,
		2645	tooltip => "Signs and other items you examined",
		2646	},
		2647	);
		2648
		2649	sub cf::client::send_msg {
		2650	my ($self, $channel, $msg, $color, @extra) = @_;
		2651
		2652	$msg = $self->pl->expand_cfpod ($msg);
		2653
		2654	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2655
		2656	# check predefined channels, for the benefit of C
		2657	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2658
		2659	if (ref $channel) {
		2660	# send meta info to client, if not yet sent
		2661	unless (exists $self->{channel}{$channel->{id}}) {
		2662	$self->{channel}{$channel->{id}} = $channel;
		2663	$self->ext_msg (channel_info => $channel)
		2664	if $self->can_msg;
		2665	}
		2666
		2667	$channel = $channel->{id};
		2668	}
		2669
		2670	return unless @extra || length $msg;
		2671
		2672	if ($self->can_msg) {
		2673	# default colour, mask it out
		2674	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2675	if $color & cf::NDI_DEF;
		2676
		2677	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2678	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2679	} else {
		2680	if ($color >= 0) {
		2681	# replace some tags by gcfclient-compatible ones
		2682	for ($msg) {
		2683	1 while
		2684	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2685	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2686	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2687	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2688	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2689	}
		2690
		2691	$color &= cf::NDI_COLOR_MASK;
		2692
		2693	utf8::encode $msg;
		2694
		2695	if (0 && $msg =~ /\[/) {
		2696	# COMMAND/INFO
		2697	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2698	} else {
		2699	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2700	$self->send_packet ("drawinfo $color $msg")
		2701	}
		2702	}
		2703	}
		2704	}
		2705
		2706	=item $client->ext_msg ($type, @msg)
		2707
		2708	Sends an ext event to the client.
		2709
		2710	=cut
		2711
		2712	sub cf::client::ext_msg($$@) {
		2713	my ($self, $type, @msg) = @_;
		2714
		2715	if ($self->extcmd == 2) {
		2716	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2717	} elsif ($self->extcmd == 1) { # TODO: remove
		2718	push @msg, msgtype => "event_$type";
		2719	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2720	}
		2721	}
		2722
		2723	=item $client->ext_reply ($msgid, @msg)
		2724
		2725	Sends an ext reply to the client.
		2726
		2727	=cut
		2728
		2729	sub cf::client::ext_reply($$@) {
		2730	my ($self, $id, @msg) = @_;
		2731
		2732	if ($self->extcmd == 2) {
		2733	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2734	} elsif ($self->extcmd == 1) {
		2735	#TODO: version 1, remove
		2736	unshift @msg, msgtype => "reply", msgid => $id;
		2737	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2738	}
		2739	}
1692		2740
1693	=item $success = $client->query ($flags, "text", \&cb)	2741	=item $success = $client->query ($flags, "text", \&cb)
1694		2742
1695	Queues a query to the client, calling the given callback with	2743	Queues a query to the client, calling the given callback with
1696	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2744	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1697	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2745	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1698		2746
1699	Queries can fail, so check the return code. Or don't, as queries will become	2747	Queries can fail, so check the return code. Or don't, as queries will
1700	reliable at some point in the future.	2748	become reliable at some point in the future.
1701		2749
1702	=cut	2750	=cut
1703		2751
1704	sub cf::client::query {	2752	sub cf::client::query {
1705	my ($self, $flags, $text, $cb) = @_;	2753	my ($self, $flags, $text, $cb) = @_;
…		…
1713	utf8::encode $text;	2761	utf8::encode $text;
1714	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2762	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1715		2763
1716	$self->send_packet ($self->{query_queue}[0][0])	2764	$self->send_packet ($self->{query_queue}[0][0])
1717	if @{ $self->{query_queue} } == 1;	2765	if @{ $self->{query_queue} } == 1;
		2766
		2767	1
1718	}	2768	}
1719		2769
1720	cf::client->attach (	2770	cf::client->attach (
		2771	on_connect => sub {
		2772	my ($ns) = @_;
		2773
		2774	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2775	},
1721	on_reply => sub {	2776	on_reply => sub {
1722	my ($ns, $msg) = @_;	2777	my ($ns, $msg) = @_;
1723		2778
1724	# this weird shuffling is so that direct followup queries	2779	# this weird shuffling is so that direct followup queries
1725	# get handled first	2780	# get handled first
1726	my $queue = delete $ns->{query_queue}	2781	my $queue = delete $ns->{query_queue}
1727	or return; # be conservative, not sure how that can happen, but we saw a crash here	2782	or return; # be conservative, not sure how that can happen, but we saw a crash here
1728		2783
1729	(shift @$queue)->[1]->($msg);	2784	(shift @$queue)->[1]->($msg);
		2785	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1730		2786
1731	push @{ $ns->{query_queue} }, @$queue;	2787	push @{ $ns->{query_queue} }, @$queue;
1732		2788
1733	if (@{ $ns->{query_queue} } == @$queue) {	2789	if (@{ $ns->{query_queue} } == @$queue) {
1734	if (@$queue) {	2790	if (@$queue) {
…		…
1736	} else {	2792	} else {
1737	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2793	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1738	}	2794	}
1739	}	2795	}
1740	},	2796	},
		2797	on_exticmd => sub {
		2798	my ($ns, $buf) = @_;
		2799
		2800	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2801
		2802	if (ref $msg) {
		2803	my ($type, $reply, @payload) =
		2804	"ARRAY" eq ref $msg
		2805	? @$msg
		2806	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2807
		2808	my @reply;
		2809
		2810	if (my $cb = $EXTICMD{$type}) {
		2811	@reply = $cb->($ns, @payload);
		2812	}
		2813
		2814	$ns->ext_reply ($reply, @reply)
		2815	if $reply;
		2816
		2817	} else {
		2818	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2819	}
		2820
		2821	cf::override;
		2822	},
1741	);	2823	);
1742		2824
1743	=item $client->async (\&cb)	2825	=item $client->async (\&cb)
1744		2826
1745	Create a new coroutine, running the specified callback. The coroutine will	2827	Create a new coroutine, running the specified callback. The coroutine will
…		…
1786	our $safe = new Safe "safe";	2868	our $safe = new Safe "safe";
1787	our $safe_hole = new Safe::Hole;	2869	our $safe_hole = new Safe::Hole;
1788		2870
1789	$SIG{FPE} = 'IGNORE';	2871	$SIG{FPE} = 'IGNORE';
1790		2872
1791	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2873	$safe->permit_only (Opcode::opset qw(
		2874	:base_core :base_mem :base_orig :base_math
		2875	grepstart grepwhile mapstart mapwhile
		2876	sort time
		2877	));
1792		2878
1793	# here we export the classes and methods available to script code	2879	# here we export the classes and methods available to script code
1794		2880
1795	=pod	2881	=pod
1796		2882
1797	The following fucntions and emthods are available within a safe environment:	2883	The following functions and methods are available within a safe environment:
1798		2884
1799	cf::object contr pay_amount pay_player map	2885	cf::object
		2886	contr pay_amount pay_player map x y force_find force_add
		2887	insert remove name archname title slaying race decrease_ob_nr
		2888
1800	cf::object::player player	2889	cf::object::player
1801	cf::player peaceful	2890	player
1802	cf::map trigger	2891
		2892	cf::player
		2893	peaceful
		2894
		2895	cf::map
		2896	trigger
1803		2897
1804	=cut	2898	=cut
1805		2899
1806	for (	2900	for (
1807	["cf::object" => qw(contr pay_amount pay_player map)],	2901	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2902	insert remove inv name archname title slaying race
		2903	decrease_ob_nr)],
1808	["cf::object::player" => qw(player)],	2904	["cf::object::player" => qw(player)],
1809	["cf::player" => qw(peaceful)],	2905	["cf::player" => qw(peaceful)],
1810	["cf::map" => qw(trigger)],	2906	["cf::map" => qw(trigger)],
1811	) {	2907	) {
1812	no strict 'refs';	2908	no strict 'refs';
…		…
1883	=back	2979	=back
1884		2980
1885	=cut	2981	=cut
1886		2982
1887	#############################################################################	2983	#############################################################################
		2984	# the server's init and main functions
1888		2985
1889	=head2 EXTENSION DATABASE SUPPORT	2986	sub load_facedata($) {
		2987	my ($path) = @_;
1890		2988
1891	Crossfire maintains a very simple database for extension use. It can	2989	# HACK to clear player env face cache, we need some signal framework
1892	currently store anything that can be serialised using Storable, which	2990	# for this (global event?)
1893	excludes objects.	2991	%ext::player_env::MUSIC_FACE_CACHE = ();
1894		2992
1895	The parameter C<$family> should best start with the name of the extension	2993	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1896	using it, it should be unique.
1897		2994
1898	=over 4	2995	warn "loading facedata from $path\n";
1899		2996
1900	=item $hashref = cf::db_get $family	2997	my $facedata;
		2998	0 < aio_load $path, $facedata
		2999	or die "$path: $!";
1901		3000
1902	Return a hashref for use by the extension C<$family>, which can be	3001	$facedata = Coro::Storable::thaw $facedata;
1903	modified. After modifications, you have to call C<cf::db_dirty> or
1904	C<cf::db_sync>.
1905		3002
1906	=item $value = cf::db_get $family => $key	3003	$facedata->{version} == 2
		3004	or cf::cleanup "$path: version mismatch, cannot proceed.";
1907		3005
1908	Returns a single value from the database	3006	# patch in the exptable
1909		3007	$facedata->{resource}{"res/exp_table"} = {
1910	=item cf::db_put $family => $hashref	3008	type => FT_RSRC,
1911		3009	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1912	Stores the given family hashref into the database. Updates are delayed, if
1913	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1914
1915	=item cf::db_put $family => $key => $value
1916
1917	Stores the given C<$value> in the family hash. Updates are delayed, if you
1918	want the data to be synced to disk immediately, use C<cf::db_sync>.
1919
1920	=item cf::db_dirty
1921
1922	Marks the database as dirty, to be updated at a later time.
1923
1924	=item cf::db_sync
1925
1926	Immediately write the database to disk I<if it is dirty>.
1927
1928	=cut
1929
1930	our $DB;
1931
1932	{
1933	my $path = cf::localdir . "/database.pst";
1934
1935	sub db_load() {
1936	$DB = stat $path ? Storable::retrieve $path : { };
1937	}
1938
1939	my $pid;
1940
1941	sub db_save() {
1942	waitpid $pid, 0 if $pid;
1943	if (0 == ($pid = fork)) {
1944	$DB->{_meta}{version} = 1;
1945	Storable::nstore $DB, "$path~";
1946	rename "$path~", $path;
1947	cf::_exit 0 if defined $pid;
1948	}
1949	}
1950
1951	my $dirty;
1952
1953	sub db_sync() {
1954	db_save if $dirty;
1955	undef $dirty;
1956	}
1957
1958	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1959	db_sync;
1960	});	3010	};
		3011	cf::cede_to_tick;
1961		3012
1962	sub db_dirty() {
1963	$dirty = 1;
1964	$idle->start;
1965	}	3013	{
		3014	my $faces = $facedata->{faceinfo};
1966		3015
1967	sub db_get($;$) {	3016	while (my ($face, $info) = each %$faces) {
1968	@_ >= 2	3017	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1969	? $DB->{$_[0]}{$_[1]}	3018	cf::face::set_visibility $idx, $info->{visibility};
1970	: ($DB->{$_[0]} ||= { })	3019	cf::face::set_magicmap $idx, $info->{magicmap};
1971	}	3020	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3021	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1972		3022
1973	sub db_put($$;$) {	3023	cf::cede_to_tick;
1974	if (@_ >= 3) {
1975	$DB->{$_[0]}{$_[1]} = $_[2];
1976	} else {
1977	$DB->{$_[0]} = $_[1];
1978	}
1979	db_dirty;
1980	}
1981
1982	cf::global->attach (
1983	prio => 10000,
1984	on_cleanup => sub {
1985	db_sync;
1986	},	3024	}
1987	);
1988	}
1989		3025
1990	#############################################################################	3026	while (my ($face, $info) = each %$faces) {
1991	# the server's main()	3027	next unless $info->{smooth};
		3028	my $idx = cf::face::find $face
		3029	or next;
		3030	if (my $smooth = cf::face::find $info->{smooth}) {
		3031	cf::face::set_smooth $idx, $smooth;
		3032	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3033	} else {
		3034	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3035	}
1992		3036
1993	sub cfg_load {	3037	cf::cede_to_tick;
		3038	}
		3039	}
		3040
		3041	{
		3042	my $anims = $facedata->{animinfo};
		3043
		3044	while (my ($anim, $info) = each %$anims) {
		3045	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3046	cf::cede_to_tick;
		3047	}
		3048
		3049	cf::anim::invalidate_all; # d'oh
		3050	}
		3051
		3052	{
		3053	# TODO: for gcfclient pleasure, we should give resources
		3054	# that gcfclient doesn't grok a >10000 face index.
		3055	my $res = $facedata->{resource};
		3056
		3057	my $soundconf = delete $res->{"res/sound.conf"};
		3058
		3059	while (my ($name, $info) = each %$res) {
		3060	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3061	my $data;
		3062
		3063	if ($info->{type} & 1) {
		3064	# prepend meta info
		3065
		3066	my $meta = $enc->encode ({
		3067	name => $name,
		3068	%{ $info->{meta} || {} },
		3069	});
		3070
		3071	$data = pack "(w/a*)*", $meta, $info->{data};
		3072	} else {
		3073	$data = $info->{data};
		3074	}
		3075
		3076	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3077	cf::face::set_type $idx, $info->{type};
		3078
		3079	cf::cede_to_tick;
		3080	}
		3081
		3082	if ($soundconf) {
		3083	$soundconf = $enc->decode (delete $soundconf->{data});
		3084
		3085	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3086	my $sound = $soundconf->{compat}[$_]
		3087	or next;
		3088
		3089	my $face = cf::face::find "sound/$sound->[1]";
		3090	cf::sound::set $sound->[0] => $face;
		3091	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3092	}
		3093
		3094	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3095	my $face = cf::face::find "sound/$v";
		3096	cf::sound::set $k => $face;
		3097	}
		3098	}
		3099	}
		3100
		3101	1
		3102	}
		3103
		3104	register_exticmd fx_want => sub {
		3105	my ($ns, $want) = @_;
		3106
		3107	while (my ($k, $v) = each %$want) {
		3108	$ns->fx_want ($k, $v);
		3109	}
		3110	};
		3111
		3112	sub reload_regions {
		3113	# HACK to clear player env face cache, we need some signal framework
		3114	# for this (global event?)
		3115	%ext::player_env::MUSIC_FACE_CACHE = ();
		3116
		3117	load_resource_file "$MAPDIR/regions"
		3118	or die "unable to load regions file\n";
		3119
		3120	for (cf::region::list) {
		3121	$_->{match} = qr/$_->{match}/
		3122	if exists $_->{match};
		3123	}
		3124	}
		3125
		3126	sub reload_facedata {
		3127	load_facedata "$DATADIR/facedata"
		3128	or die "unable to load facedata\n";
		3129	}
		3130
		3131	sub reload_archetypes {
		3132	load_resource_file "$DATADIR/archetypes"
		3133	or die "unable to load archetypes\n";
		3134	#d# NEED to laod twice to resolve forward references
		3135	# this really needs to be done in an extra post-pass
		3136	# (which needs to be synchronous, so solve it differently)
		3137	load_resource_file "$DATADIR/archetypes"
		3138	or die "unable to load archetypes\n";
		3139	}
		3140
		3141	sub reload_treasures {
		3142	load_resource_file "$DATADIR/treasures"
		3143	or die "unable to load treasurelists\n";
		3144	}
		3145
		3146	sub reload_resources {
		3147	warn "reloading resource files...\n";
		3148
		3149	reload_regions;
		3150	reload_facedata;
		3151	#reload_archetypes;#d#
		3152	reload_archetypes;
		3153	reload_treasures;
		3154
		3155	warn "finished reloading resource files\n";
		3156	}
		3157
		3158	sub init {
		3159	reload_resources;
		3160	}
		3161
		3162	sub reload_config {
1994	open my $fh, "<:utf8", cf::confdir . "/config"	3163	open my $fh, "<:utf8", "$CONFDIR/config"
1995	or return;	3164	or return;
1996		3165
1997	local $/;	3166	local $/;
1998	*CFG = YAML::Syck::Load <$fh>;	3167	*CFG = YAML::Syck::Load <$fh>;
1999		3168
…		…
2002	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3171	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2003	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3172	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2004		3173
2005	if (exists $CFG{mlockall}) {	3174	if (exists $CFG{mlockall}) {
2006	eval {	3175	eval {
2007	$CFG{mlockall} ? &mlockall : &munlockall	3176	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2008	and die "WARNING: m(un)lockall failed: $!\n";	3177	and die "WARNING: m(un)lockall failed: $!\n";
2009	};	3178	};
2010	warn $@ if $@;	3179	warn $@ if $@;
2011	}	3180	}
2012	}	3181	}
2013		3182
2014	sub main {	3183	sub main {
2015	# we must not ever block the main coroutine	3184	# we must not ever block the main coroutine
2016	local $Coro::idle = sub {	3185	local $Coro::idle = sub {
2017	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3186	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3187	(async {
2018	async { Event::one_event };	3188	Event::one_event;
		3189	})->prio (Coro::PRIO_MAX);
2019	};	3190	};
2020		3191
2021	cfg_load;	3192	reload_config;
2022	db_load;	3193	db_init;
2023	load_extensions;	3194	load_extensions;
		3195
		3196	$TICK_WATCHER->start;
2024	Event::loop;	3197	Event::loop;
2025	}	3198	}
2026		3199
2027	#############################################################################	3200	#############################################################################
2028	# initialisation	3201	# initialisation and cleanup
2029		3202
		3203	# install some emergency cleanup handlers
		3204	BEGIN {
		3205	for my $signal (qw(INT HUP TERM)) {
		3206	Event->signal (
		3207	reentrant => 0,
		3208	data => WF_AUTOCANCEL,
		3209	signal => $signal,
		3210	prio => 0,
		3211	cb => sub {
		3212	cf::cleanup "SIG$signal";
		3213	},
		3214	);
		3215	}
		3216	}
		3217
		3218	sub write_runtime {
		3219	my $runtime = "$LOCALDIR/runtime";
		3220
		3221	# first touch the runtime file to show we are still running:
		3222	# the fsync below can take a very very long time.
		3223
		3224	IO::AIO::aio_utime $runtime, undef, undef;
		3225
		3226	my $guard = cf::lock_acquire "write_runtime";
		3227
		3228	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3229	or return;
		3230
		3231	my $value = $cf::RUNTIME + 90 + 10;
		3232	# 10 is the runtime save interval, for a monotonic clock
		3233	# 60 allows for the watchdog to kill the server.
		3234
		3235	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3236	and return;
		3237
		3238	# always fsync - this file is important
		3239	aio_fsync $fh
		3240	and return;
		3241
		3242	# touch it again to show we are up-to-date
		3243	aio_utime $fh, undef, undef;
		3244
		3245	close $fh
		3246	or return;
		3247
		3248	aio_rename "$runtime~", $runtime
		3249	and return;
		3250
		3251	warn "runtime file written.\n";
		3252
		3253	1
		3254	}
		3255
		3256	sub emergency_save() {
		3257	my $freeze_guard = cf::freeze_mainloop;
		3258
		3259	warn "enter emergency perl save\n";
		3260
		3261	cf::sync_job {
		3262	# use a peculiar iteration method to avoid tripping on perl
		3263	# refcount bugs in for. also avoids problems with players
		3264	# and maps saved/destroyed asynchronously.
		3265	warn "begin emergency player save\n";
		3266	for my $login (keys %cf::PLAYER) {
		3267	my $pl = $cf::PLAYER{$login} or next;
		3268	$pl->valid or next;
		3269	$pl->save;
		3270	}
		3271	warn "end emergency player save\n";
		3272
		3273	warn "begin emergency map save\n";
		3274	for my $path (keys %cf::MAP) {
		3275	my $map = $cf::MAP{$path} or next;
		3276	$map->valid or next;
		3277	$map->save;
		3278	}
		3279	warn "end emergency map save\n";
		3280
		3281	warn "begin emergency database checkpoint\n";
		3282	BDB::db_env_txn_checkpoint $DB_ENV;
		3283	warn "end emergency database checkpoint\n";
		3284	};
		3285
		3286	warn "leave emergency perl save\n";
		3287	}
		3288
		3289	sub post_cleanup {
		3290	my ($make_core) = @_;
		3291
		3292	warn Carp::longmess "post_cleanup backtrace"
		3293	if $make_core;
		3294	}
		3295
2030	sub reload() {	3296	sub do_reload_perl() {
2031	# can/must only be called in main	3297	# can/must only be called in main
2032	if ($Coro::current != $Coro::main) {	3298	if ($Coro::current != $Coro::main) {
2033	warn "can only reload from main coroutine\n";	3299	warn "can only reload from main coroutine";
2034	return;	3300	return;
2035	}	3301	}
2036		3302
2037	warn "reloading...";	3303	warn "reloading...";
2038		3304
2039	my $guard = freeze_mainloop;	3305	warn "entering sync_job";
		3306
		3307	cf::sync_job {
		3308	cf::write_runtime; # external watchdog should not bark
2040	cf::emergency_save;	3309	cf::emergency_save;
		3310	cf::write_runtime; # external watchdog should not bark
2041		3311
2042	eval {	3312	warn "syncing database to disk";
		3313	BDB::db_env_txn_checkpoint $DB_ENV;
		3314
2043	# if anything goes wrong in here, we should simply crash as we already saved	3315	# if anything goes wrong in here, we should simply crash as we already saved
2044		3316
2045	# cancel all watchers	3317	warn "cancelling all WF_AUTOCANCEL watchers";
2046	for (Event::all_watchers) {	3318	for (Event::all_watchers) {
2047	$_->cancel if $_->data & WF_AUTOCANCEL;	3319	$_->cancel if $_->data & WF_AUTOCANCEL;
2048	}	3320	}
2049		3321
		3322	warn "flushing outstanding aio requests";
		3323	for (;;) {
		3324	BDB::flush;
		3325	IO::AIO::flush;
		3326	Coro::cede;
		3327	last unless IO::AIO::nreqs || BDB::nreqs;
		3328	warn "iterate...";
		3329	}
		3330
		3331	++$RELOAD;
		3332
2050	# cancel all extension coros	3333	warn "cancelling all extension coros";
2051	$_->cancel for values %EXT_CORO;	3334	$_->cancel for values %EXT_CORO;
2052	%EXT_CORO = ();	3335	%EXT_CORO = ();
2053		3336
2054	# unload all extensions	3337	warn "removing commands";
2055	for (@exts) {	3338	%COMMAND = ();
		3339
		3340	warn "removing ext/exti commands";
		3341	%EXTCMD = ();
		3342	%EXTICMD = ();
		3343
		3344	warn "unloading/nuking all extensions";
		3345	for my $pkg (@EXTS) {
2056	warn "unloading <$_>";	3346	warn "... unloading $pkg";
2057	unload_extension $_;	3347
		3348	if (my $cb = $pkg->can ("unload")) {
		3349	eval {
		3350	$cb->($pkg);
		3351	1
		3352	} or warn "$pkg unloaded, but with errors: $@";
2058	}	3353	}
2059		3354
		3355	warn "... nuking $pkg";
		3356	Symbol::delete_package $pkg;
		3357	}
		3358
2060	# unload all modules loaded from $LIBDIR	3359	warn "unloading all perl modules loaded from $LIBDIR";
2061	while (my ($k, $v) = each %INC) {	3360	while (my ($k, $v) = each %INC) {
2062	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3361	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2063		3362
2064	warn "removing <$k>";	3363	warn "... unloading $k";
2065	delete $INC{$k};	3364	delete $INC{$k};
2066		3365
2067	$k =~ s/\.pm$//;	3366	$k =~ s/\.pm$//;
2068	$k =~ s/\//::/g;	3367	$k =~ s/\//::/g;
2069		3368
…		…
2072	}	3371	}
2073		3372
2074	Symbol::delete_package $k;	3373	Symbol::delete_package $k;
2075	}	3374	}
2076		3375
2077	# sync database to disk
2078	cf::db_sync;
2079	IO::AIO::flush;
2080
2081	# get rid of safe::, as good as possible	3376	warn "getting rid of safe::, as good as possible";
2082	Symbol::delete_package "safe::$_"	3377	Symbol::delete_package "safe::$_"
2083	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3378	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2084		3379
2085	# remove register_script_function callbacks
2086	# TODO
2087
2088	# unload cf.pm "a bit"	3380	warn "unloading cf.pm \"a bit\"";
2089	delete $INC{"cf.pm"};	3381	delete $INC{"cf.pm"};
		3382	delete $INC{"cf/pod.pm"};
2090		3383
2091	# don't, removes xs symbols, too,	3384	# don't, removes xs symbols, too,
2092	# and global variables created in xs	3385	# and global variables created in xs
2093	#Symbol::delete_package __PACKAGE__;	3386	#Symbol::delete_package __PACKAGE__;
2094		3387
2095	# reload cf.pm	3388	warn "unload completed, starting to reload now";
		3389
2096	warn "reloading cf.pm";	3390	warn "reloading cf.pm";
2097	require cf;	3391	require cf;
2098	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3392	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2099		3393
2100	# load config and database again	3394	warn "loading config and database again";
2101	cf::cfg_load;	3395	cf::reload_config;
2102	cf::db_load;
2103		3396
2104	# load extensions
2105	warn "load extensions";	3397	warn "loading extensions";
2106	cf::load_extensions;	3398	cf::load_extensions;
2107		3399
2108	# reattach attachments to objects	3400	warn "reattaching attachments to objects/players";
2109	warn "reattach";	3401	_global_reattach; # objects, sockets
2110	_global_reattach;	3402	warn "reattaching attachments to maps";
2111	};	3403	reattach $_ for values %MAP;
		3404	warn "reattaching attachments to players";
		3405	reattach $_ for values %PLAYER;
2112		3406
2113	if ($@) {	3407	warn "leaving sync_job";
		3408
		3409	1
		3410	} or do {
2114	warn $@;	3411	warn $@;
2115	warn "error while reloading, exiting.";	3412	warn "error while reloading, exiting.";
2116	exit 1;	3413	exit 1;
2117	}	3414	};
2118		3415
2119	warn "reloaded successfully";	3416	warn "reloaded";
2120	};	3417	};
2121		3418
2122	#############################################################################	3419	our $RELOAD_WATCHER; # used only during reload
2123		3420
2124	unless ($LINK_MAP) {	3421	sub reload_perl() {
2125	$LINK_MAP = cf::map::new;	3422	# doing reload synchronously and two reloads happen back-to-back,
		3423	# coro crashes during coro_state_free->destroy here.
2126		3424
2127	$LINK_MAP->width (41);	3425	$RELOAD_WATCHER ||= Event->timer (
2128	$LINK_MAP->height (41);	3426	reentrant => 0,
2129	$LINK_MAP->alloc;
2130	$LINK_MAP->path ("{link}");
2131	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2132	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2133
2134	# dirty hack because... archetypes are not yet loaded
2135	Event->timer (
2136	after => 2,	3427	after => 0,
		3428	data => WF_AUTOCANCEL,
2137	cb => sub {	3429	cb => sub {
2138	$_[0]->w->cancel;	3430	do_reload_perl;
2139		3431	undef $RELOAD_WATCHER;
2140	# provide some exits "home"
2141	my $exit = cf::object::new "exit";
2142
2143	$exit->slaying ($EMERGENCY_POSITION->[0]);
2144	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2145	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2146
2147	$LINK_MAP->insert ($exit->clone, 19, 19);
2148	$LINK_MAP->insert ($exit->clone, 19, 20);
2149	$LINK_MAP->insert ($exit->clone, 19, 21);
2150	$LINK_MAP->insert ($exit->clone, 20, 19);
2151	$LINK_MAP->insert ($exit->clone, 20, 21);
2152	$LINK_MAP->insert ($exit->clone, 21, 19);
2153	$LINK_MAP->insert ($exit->clone, 21, 20);
2154	$LINK_MAP->insert ($exit->clone, 21, 21);
2155
2156	$exit->destroy;
2157	});	3432	},
2158		3433	);
2159	$LINK_MAP->{deny_save} = 1;
2160	$LINK_MAP->{deny_reset} = 1;
2161
2162	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2163	}	3434	}
2164
2165	register "<global>", __PACKAGE__;
2166		3435
2167	register_command "reload" => sub {	3436	register_command "reload" => sub {
2168	my ($who, $arg) = @_;	3437	my ($who, $arg) = @_;
2169		3438
2170	if ($who->flag (FLAG_WIZ)) {	3439	if ($who->flag (FLAG_WIZ)) {
2171	$who->message ("start of reload.");
2172	reload;
2173	$who->message ("end of reload.");	3440	$who->message ("reloading server.");
		3441	async { reload_perl };
2174	}	3442	}
2175	};	3443	};
2176		3444
2177	unshift @INC, $LIBDIR;	3445	unshift @INC, $LIBDIR;
		3446
		3447	my $bug_warning = 0;
		3448
		3449	our @WAIT_FOR_TICK;
		3450	our @WAIT_FOR_TICK_BEGIN;
		3451
		3452	sub wait_for_tick {
		3453	return unless $TICK_WATCHER->is_active;
		3454	return if $Coro::current == $Coro::main;
		3455
		3456	my $signal = new Coro::Signal;
		3457	push @WAIT_FOR_TICK, $signal;
		3458	$signal->wait;
		3459	}
		3460
		3461	sub wait_for_tick_begin {
		3462	return unless $TICK_WATCHER->is_active;
		3463	return if $Coro::current == $Coro::main;
		3464
		3465	my $signal = new Coro::Signal;
		3466	push @WAIT_FOR_TICK_BEGIN, $signal;
		3467	$signal->wait;
		3468	}
2178		3469
2179	$TICK_WATCHER = Event->timer (	3470	$TICK_WATCHER = Event->timer (
2180	reentrant => 0,	3471	reentrant => 0,
		3472	parked => 1,
2181	prio => 0,	3473	prio => 0,
2182	at => $NEXT_TICK || $TICK,	3474	at => $NEXT_TICK || $TICK,
2183	data => WF_AUTOCANCEL,	3475	data => WF_AUTOCANCEL,
2184	cb => sub {	3476	cb => sub {
		3477	if ($Coro::current != $Coro::main) {
		3478	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3479	unless ++$bug_warning > 10;
		3480	return;
		3481	}
		3482
		3483	$NOW = $tick_start = Event::time;
		3484
2185	cf::server_tick; # one server iteration	3485	cf::server_tick; # one server iteration
		3486
2186	$RUNTIME += $TICK;	3487	$RUNTIME += $TICK;
2187	$NEXT_TICK += $TICK;	3488	$NEXT_TICK += $TICK;
2188		3489
		3490	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3491	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3492	Coro::async_pool {
		3493	write_runtime
		3494	or warn "ERROR: unable to write runtime file: $!";
		3495	};
		3496	}
		3497
		3498	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3499	$sig->send;
		3500	}
		3501	while (my $sig = shift @WAIT_FOR_TICK) {
		3502	$sig->send;
		3503	}
		3504
		3505	$NOW = Event::time;
		3506
2189	# if we are delayed by four ticks or more, skip them all	3507	# if we are delayed by four ticks or more, skip them all
2190	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3508	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2191		3509
2192	$TICK_WATCHER->at ($NEXT_TICK);	3510	$TICK_WATCHER->at ($NEXT_TICK);
2193	$TICK_WATCHER->start;	3511	$TICK_WATCHER->start;
		3512
		3513	$LOAD = ($NOW - $tick_start) / $TICK;
		3514	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3515
		3516	_post_tick;
2194	},	3517	},
2195	);	3518	);
2196		3519
		3520	{
		3521	BDB::min_parallel 8;
2197	IO::AIO::max_poll_time $TICK * 0.2;	3522	BDB::max_poll_time $TICK * 0.1;
2198		3523	$BDB_POLL_WATCHER = Event->io (
2199	Event->io (	3524	reentrant => 0,
2200	fd => IO::AIO::poll_fileno,	3525	fd => BDB::poll_fileno,
2201	poll => 'r',	3526	poll => 'r',
2202	prio => 5,	3527	prio => 0,
2203	data => WF_AUTOCANCEL,
2204	cb => \&IO::AIO::poll_cb,
2205	);
2206
2207	Event->timer (
2208	data => WF_AUTOCANCEL,	3528	data => WF_AUTOCANCEL,
		3529	cb => \&BDB::poll_cb,
		3530	);
		3531
		3532	BDB::set_sync_prepare {
		3533	my $status;
		3534	my $current = $Coro::current;
		3535	(
		3536	sub {
		3537	$status = $!;
		3538	$current->ready; undef $current;
		3539	},
		3540	sub {
		3541	Coro::schedule while defined $current;
		3542	$! = $status;
		3543	},
		3544	)
		3545	};
		3546
		3547	unless ($DB_ENV) {
		3548	$DB_ENV = BDB::db_env_create;
		3549	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3550	| BDB::LOG_AUTOREMOVE, 1);
		3551	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3552	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3553
		3554	cf::sync_job {
		3555	eval {
		3556	BDB::db_env_open
		3557	$DB_ENV,
		3558	$BDBDIR,
		3559	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3560	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3561	0666;
		3562
		3563	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3564	};
		3565
		3566	cf::cleanup "db_env_open(db): $@" if $@;
		3567	};
		3568	}
		3569
		3570	$BDB_DEADLOCK_WATCHER = Event->timer (
2209	after => 0,	3571	after => 3,
2210	interval => 10,	3572	interval => 1,
		3573	hard => 1,
		3574	prio => 0,
		3575	data => WF_AUTOCANCEL,
2211	cb => sub {	3576	cb => sub {
2212	(Coro::unblock_sub {	3577	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2213	write_runtime	3578	},
2214	or warn "ERROR: unable to write runtime file: $!";	3579	);
		3580	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3581	after => 11,
		3582	interval => 60,
		3583	hard => 1,
		3584	prio => 0,
		3585	data => WF_AUTOCANCEL,
		3586	cb => sub {
		3587	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3588	},
		3589	);
		3590	$BDB_TRICKLE_WATCHER = Event->timer (
		3591	after => 5,
		3592	interval => 10,
		3593	hard => 1,
		3594	prio => 0,
		3595	data => WF_AUTOCANCEL,
		3596	cb => sub {
		3597	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3598	},
		3599	);
		3600	}
		3601
		3602	{
		3603	IO::AIO::min_parallel 8;
		3604
		3605	undef $Coro::AIO::WATCHER;
		3606	IO::AIO::max_poll_time $TICK * 0.1;
		3607	$AIO_POLL_WATCHER = Event->io (
		3608	reentrant => 0,
		3609	data => WF_AUTOCANCEL,
		3610	fd => IO::AIO::poll_fileno,
		3611	poll => 'r',
		3612	prio => 6,
		3613	cb => \&IO::AIO::poll_cb,
		3614	);
		3615	}
		3616
		3617	my $_log_backtrace;
		3618
		3619	sub _log_backtrace {
		3620	my ($msg, @addr) = @_;
		3621
		3622	$msg =~ s/\n//;
		3623
		3624	# limit the # of concurrent backtraces
		3625	if ($_log_backtrace < 2) {
		3626	++$_log_backtrace;
		3627	async {
		3628	my @bt = fork_call {
		3629	@addr = map { sprintf "%x", $_ } @addr;
		3630	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3631	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3632	or die "addr2line: $!";
		3633
		3634	my @funcs;
		3635	my @res = <$fh>;
		3636	chomp for @res;
		3637	while (@res) {
		3638	my ($func, $line) = splice @res, 0, 2, ();
		3639	push @funcs, "[$func] $line";
		3640	}
		3641
		3642	@funcs
		3643	};
		3644
		3645	LOG llevInfo, "[ABT] $msg\n";
		3646	LOG llevInfo, "[ABT] $_\n" for @bt;
		3647	--$_log_backtrace;
2215	})->();	3648	};
		3649	} else {
		3650	LOG llevInfo, "[ABT] $msg\n";
		3651	LOG llevInfo, "[ABT] [suppressed]\n";
2216	},	3652	}
2217	);	3653	}
		3654
		3655	# load additional modules
		3656	use cf::pod;
2218		3657
2219	END { cf::emergency_save }	3658	END { cf::emergency_save }
2220		3659
2221	1	3660	1
2222		3661

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