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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.107 by root, Sun Dec 31 18:10:40 2006 UTC vs.
Revision 1.357 by root, Tue Sep 4 08:42:58 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;
		29	use Digest::MD5;
20	use Fcntl;	30	use Fcntl;
21	use IO::AIO 2.31 ();
22	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.32 ();
23	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
24		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
25	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
26		44
27	# 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?
28	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
29		47
30	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
31		49
32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
33		51
34	our %COMMAND = ();	52	our %COMMAND = ();
35	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
36	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
37		60
		61	our $RELOAD; # number of reloads so far
38	our @EVENT;	62	our @EVENT;
39	our $LIBDIR = datadir . "/ext";
40		63
41	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(!)
42	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
43	our $NEXT_TICK;	80	our $NEXT_TICK;
44	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 $DB_ENV;
45		86
46	our %CFG;	87	our %CFG;
47		88
48	our $UPTIME; $UPTIME ||= time;	89	our $UPTIME; $UPTIME ||= time;
49	our $RUNTIME;	90	our $RUNTIME;
50		91
51	our %MAP; # all maps	92	our (%PLAYER, %PLAYER_LOADING); # all users
52	our $LINK_MAP; # the special {link} map	93	our (%MAP, %MAP_LOADING ); # all maps
53	our $FREEZE;	94	our $LINK_MAP; # the special {link} map, which is always available
		95
		96	# used to convert map paths into valid unix filenames by replacing / by ∕
		97	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		98
		99	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		100	our $LOADAVG; # same thing, but with alpha-smoothing
		101	our $tick_start; # for load detecting purposes
54		102
55	binmode STDOUT;	103	binmode STDOUT;
56	binmode STDERR;	104	binmode STDERR;
57		105
58	# read virtual server time, if available	106	# read virtual server time, if available
59	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	107	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
60	open my $fh, "<", cf::localdir . "/runtime"	108	open my $fh, "<", "$LOCALDIR/runtime"
61	or die "unable to read runtime file: $!";	109	or die "unable to read runtime file: $!";
62	$RUNTIME = <$fh> + 0.;	110	$RUNTIME = <$fh> + 0.;
63	}	111	}
64		112
65	mkdir cf::localdir;	113	mkdir $_
66	mkdir cf::localdir . "/" . cf::playerdir;	114	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
67	mkdir cf::localdir . "/" . cf::tmpdir;
68	mkdir cf::localdir . "/" . cf::uniquedir;
69		115
70	our %EXT_CORO;	116	our $EMERGENCY_POSITION;
		117
		118	sub cf::map::normalise;
71		119
72	#############################################################################	120	#############################################################################
73		121
74	=head2 GLOBAL VARIABLES	122	=head2 GLOBAL VARIABLES
75		123
…		…
82	=item $cf::RUNTIME	130	=item $cf::RUNTIME
83		131
84	The time this server has run, starts at 0 and is increased by $cf::TICK on	132	The time this server has run, starts at 0 and is increased by $cf::TICK on
85	every server tick.	133	every server tick.
86		134
87	=item $cf::LIBDIR	135	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		136	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		137	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
88		138
89	The perl library directory, where extensions and cf-specific modules can	139	Various directories - "/etc", read-only install directory, perl-library
90	be found. It will be added to C<@INC> automatically.	140	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		141	unique-items directory, player file directory, random maps directory and
		142	database environment.
91		143
92	=item $cf::NOW	144	=item $cf::NOW
93		145
94	The time of the last (current) server tick.	146	The time of the last (current) server tick.
95		147
96	=item $cf::TICK	148	=item $cf::TICK
97		149
98	The interval between server ticks, in seconds.	150	The interval between server ticks, in seconds.
		151
		152	=item $cf::LOADAVG
		153
		154	The current CPU load on the server (alpha-smoothed), as a value between 0
		155	(none) and 1 (overloaded), indicating how much time is spent on processing
		156	objects per tick. Healthy values are < 0.5.
		157
		158	=item $cf::LOAD
		159
		160	The raw value load value from the last tick.
99		161
100	=item %cf::CFG	162	=item %cf::CFG
101		163
102	Configuration for the server, loaded from C</etc/crossfire/config>, or	164	Configuration for the server, loaded from C</etc/crossfire/config>, or
103	from wherever your confdir points to.	165	from wherever your confdir points to.
		166
		167	=item cf::wait_for_tick, cf::wait_for_tick_begin
		168
		169	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		170	returns directly I<after> the tick processing (and consequently, can only wake one process
		171	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		172
		173	=item @cf::INVOKE_RESULTS
		174
		175	This array contains the results of the last C<invoke ()> call. When
		176	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		177	that call.
104		178
105	=back	179	=back
106		180
107	=cut	181	=cut
108		182
109	BEGIN {	183	BEGIN {
110	*CORE::GLOBAL::warn = sub {	184	*CORE::GLOBAL::warn = sub {
111	my $msg = join "", @_;	185	my $msg = join "", @_;
112	utf8::encode $msg;
113		186
114	$msg .= "\n"	187	$msg .= "\n"
115	unless $msg =~ /\n$/;	188	unless $msg =~ /\n$/;
116		189
		190	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		191
		192	utf8::encode $msg;
117	LOG llevError, "cfperl: $msg";	193	LOG llevError, $msg;
118	};	194	};
119	}	195	}
120		196
121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	197	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
122	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	198	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
123	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	199	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
124	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	200	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
125	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	201	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		202	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
126	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	203	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
127		204
128	# we bless all objects into (empty) derived classes to force a method lookup	205	# we bless all objects into (empty) derived classes to force a method lookup
129	# within the Safe compartment.	206	# within the Safe compartment.
130	for my $pkg (qw(	207	for my $pkg (qw(
131	cf::global cf::attachable	208	cf::global cf::attachable
…		…
140		217
141	$Event::DIED = sub {	218	$Event::DIED = sub {
142	warn "error in event callback: @_";	219	warn "error in event callback: @_";
143	};	220	};
144		221
145	my %ext_pkg;	222	#############################################################################
146	my @exts;
147	my @hook;
148		223
149	=head2 UTILITY FUNCTIONS	224	=head2 UTILITY FUNCTIONS
150		225
151	=over 4	226	=over 4
152		227
153	=cut	228	=item dumpval $ref
154		229
155	use JSON::Syck (); # TODO# replace by JSON::PC once working	230	=cut
		231
		232	sub dumpval {
		233	eval {
		234	local $SIG{__DIE__};
		235	my $d;
		236	if (1) {
		237	$d = new Data::Dumper([$_[0]], ["*var"]);
		238	$d->Terse(1);
		239	$d->Indent(2);
		240	$d->Quotekeys(0);
		241	$d->Useqq(1);
		242	#$d->Bless(...);
		243	$d->Seen($_[1]) if @_ > 1;
		244	$d = $d->Dump();
		245	}
		246	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		247	$d
		248	} || "[unable to dump $_[0]: '$@']";
		249	}
156		250
157	=item $ref = cf::from_json $json	251	=item $ref = cf::from_json $json
158		252
159	Converts a JSON string into the corresponding perl data structure.	253	Converts a JSON string into the corresponding perl data structure.
160		254
161	=cut
162
163	sub from_json($) {
164	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
165	JSON::Syck::Load $_[0]
166	}
167
168	=item $json = cf::to_json $ref	255	=item $json = cf::to_json $ref
169		256
170	Converts a perl data structure into its JSON representation.	257	Converts a perl data structure into its JSON representation.
171		258
172	=cut	259	=cut
173		260
174	sub to_json($) {	261	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	262
176	JSON::Syck::Dump $_[0]	263	sub to_json ($) { $json_coder->encode ($_[0]) }
		264	sub from_json ($) { $json_coder->decode ($_[0]) }
		265
		266	=item cf::lock_wait $string
		267
		268	Wait until the given lock is available. See cf::lock_acquire.
		269
		270	=item my $lock = cf::lock_acquire $string
		271
		272	Wait until the given lock is available and then acquires it and returns
		273	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		274	for example when the coroutine gets canceled), the lock is automatically
		275	returned.
		276
		277	Locks are *not* recursive, locking from the same coro twice results in a
		278	deadlocked coro.
		279
		280	Lock names should begin with a unique identifier (for example, cf::map::find
		281	uses map_find and cf::map::load uses map_load).
		282
		283	=item $locked = cf::lock_active $string
		284
		285	Return true if the lock is currently active, i.e. somebody has locked it.
		286
		287	=cut
		288
		289	our %LOCK;
		290
		291	sub lock_wait($) {
		292	my ($key) = @_;
		293
		294	# wait for lock, if any
		295	while ($LOCK{$key}) {
		296	push @{ $LOCK{$key} }, $Coro::current;
		297	Coro::schedule;
		298	}
177	}	299	}
		300
		301	sub lock_acquire($) {
		302	my ($key) = @_;
		303
		304	# wait, to be sure we are not locked
		305	lock_wait $key;
		306
		307	$LOCK{$key} = [];
		308
		309	Coro::guard {
		310	# wake up all waiters, to be on the safe side
		311	$_->ready for @{ delete $LOCK{$key} };
		312	}
		313	}
		314
		315	sub lock_active($) {
		316	my ($key) = @_;
		317
		318	! ! $LOCK{$key}
		319	}
		320
		321	sub freeze_mainloop {
		322	return unless $TICK_WATCHER->is_active;
		323
		324	my $guard = Coro::guard {
		325	$TICK_WATCHER->start;
		326	};
		327	$TICK_WATCHER->stop;
		328	$guard
		329	}
		330
		331	=item cf::get_slot $time[, $priority[, $name]]
		332
		333	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		334	This call blocks and returns only when you have at least C<$time> seconds
		335	of cpu time till the next tick. The slot is only valid till the next cede.
		336
		337	The optional C<$name> can be used to identify the job to run. It might be
		338	used for statistical purposes and should identify the same time-class.
		339
		340	Useful for short background jobs.
		341
		342	=cut
		343
		344	our @SLOT_QUEUE;
		345	our $SLOT_QUEUE;
		346
		347	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		348	$SLOT_QUEUE = Coro::async {
		349	my $signal = new Coro::Signal;
		350
		351	while () {
		352	next_job:
		353	my $avail = cf::till_tick;
		354	if ($avail > 0.01) {
		355	for (0 .. $#SLOT_QUEUE) {
		356	if ($SLOT_QUEUE[$_][0] < $avail) {
		357	my $job = splice @SLOT_QUEUE, $_, 1, ();
		358	$job->[2]->send;
		359	Coro::cede;
		360	goto next_job;
		361	}
		362	}
		363	}
		364
		365	if (@SLOT_QUEUE) {
		366	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		367	push @cf::WAIT_FOR_TICK, $signal;
		368	$signal->wait;
		369	} else {
		370	Coro::schedule;
		371	}
		372	}
		373	};
		374
		375	sub get_slot($;$$) {
		376	my ($time, $pri, $name) = @_;
		377
		378	$time = $TICK * .6 if $time > $TICK * .6;
		379	my $sig = new Coro::Signal;
		380
		381	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		382	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		383	$SLOT_QUEUE->ready;
		384	$sig->wait;
		385	}
		386
		387	=item cf::async { BLOCK }
		388
		389	Currently the same as Coro::async_pool, meaning you cannot use
		390	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		391	thing you are allowed to do is call C<prio> on it.
		392
		393	=cut
		394
		395	BEGIN { *async = \&Coro::async_pool }
178		396
179	=item cf::sync_job { BLOCK }	397	=item cf::sync_job { BLOCK }
180		398
181	The design of crossfire+ requires that the main coro ($Coro::main) is	399	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
182	always able to handle events or runnable, as crossfire+ is only partly	400	is always able to handle events or runnable, as Crossfire TRT is only
183	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	401	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		402	acceptable.
184		403
185	If it must be done, put the blocking parts into C<sync_job>. This will run	404	If it must be done, put the blocking parts into C<sync_job>. This will run
186	the given BLOCK in another coroutine while waiting for the result. The	405	the given BLOCK in another coroutine while waiting for the result. The
187	server will be frozen during this time, so the block should either finish	406	server will be frozen during this time, so the block should either finish
188	fast or be very important.	407	fast or be very important.
…		…
190	=cut	409	=cut
191		410
192	sub sync_job(&) {	411	sub sync_job(&) {
193	my ($job) = @_;	412	my ($job) = @_;
194		413
195	my $busy = 1;
196	my @res;
197
198	# TODO: use suspend/resume instead
199	local $FREEZE = 1;
200
201	my $coro = Coro::async {
202	@res = eval { $job->() };
203	warn $@ if $@;
204	undef $busy;
205	};
206
207	if ($Coro::current == $Coro::main) {	414	if ($Coro::current == $Coro::main) {
		415	my $time = Event::time;
		416
		417	# this is the main coro, too bad, we have to block
		418	# till the operation succeeds, freezing the server :/
		419
		420	# TODO: use suspend/resume instead
		421	# (but this is cancel-safe)
		422	my $freeze_guard = freeze_mainloop;
		423
		424	my $busy = 1;
		425	my @res;
		426
		427	(async {
		428	@res = eval { $job->() };
		429	warn $@ if $@;
		430	undef $busy;
208	$coro->prio (Coro::PRIO_MAX);	431	})->prio (Coro::PRIO_MAX);
		432
209	while ($busy) {	433	while ($busy) {
210	Coro::cede_notself;	434	Coro::cede or Event::one_event;
211	Event::one_event unless Coro::nready;
212	}	435	}
		436
		437	$time = Event::time - $time;
		438
		439	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		440	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		441
		442	$tick_start += $time; # do not account sync jobs to server load
		443
		444	wantarray ? @res : $res[0]
213	} else {	445	} else {
214	$coro->join;	446	# we are in another coroutine, how wonderful, everything just works
		447
		448	$job->()
215	}	449	}
216
217	wantarray ? @res : $res[0]
218	}	450	}
219		451
220	=item $coro = cf::coro { BLOCK }	452	=item $coro = cf::async_ext { BLOCK }
221		453
222	Creates and returns a new coro. This coro is automcatially being canceled	454	Like async, but this coro is automatically being canceled when the
223	when the extension calling this is being unloaded.	455	extension calling this is being unloaded.
224		456
225	=cut	457	=cut
226		458
227	sub coro(&) {	459	sub async_ext(&) {
228	my $cb = shift;	460	my $cb = shift;
229		461
230	my $coro; $coro = async {	462	my $coro = &Coro::async ($cb);
231	eval {
232	$cb->();
233	};
234	warn $@ if $@;
235	};
236		463
237	$coro->on_destroy (sub {	464	$coro->on_destroy (sub {
238	delete $EXT_CORO{$coro+0};	465	delete $EXT_CORO{$coro+0};
239	});	466	});
240	$EXT_CORO{$coro+0} = $coro;	467	$EXT_CORO{$coro+0} = $coro;
241		468
242	$coro	469	$coro
243	}	470	}
244		471
		472	=item fork_call { }, $args
		473
		474	Executes the given code block with the given arguments in a seperate
		475	process, returning the results. Everything must be serialisable with
		476	Coro::Storable. May, of course, block. Note that the executed sub may
		477	never block itself or use any form of Event handling.
		478
		479	=cut
		480
		481	sub fork_call(&@) {
		482	my ($cb, @args) = @_;
		483
		484	# we seemingly have to make a local copy of the whole thing,
		485	# otherwise perl prematurely frees the stuff :/
		486	# TODO: investigate and fix (likely this will be rather laborious)
		487
		488	my @res = Coro::Util::fork_eval {
		489	reset_signals;
		490	&$cb
		491	}, @args;
		492
		493	wantarray ? @res : $res[-1]
		494	}
		495
		496	=item $value = cf::db_get $family => $key
		497
		498	Returns a single value from the environment database.
		499
		500	=item cf::db_put $family => $key => $value
		501
		502	Stores the given C<$value> in the family. It can currently store binary
		503	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		504
		505	=cut
		506
		507	our $DB;
		508
		509	sub db_init {
		510	unless ($DB) {
		511	$DB = BDB::db_create $DB_ENV;
		512
		513	cf::sync_job {
		514	eval {
		515	$DB->set_flags (BDB::CHKSUM);
		516
		517	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		518	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		519	cf::cleanup "db_open(db): $!" if $!;
		520	};
		521	cf::cleanup "db_open(db): $@" if $@;
		522	};
		523	}
		524	}
		525
		526	sub db_get($$) {
		527	my $key = "$_[0]/$_[1]";
		528
		529	cf::sync_job {
		530	BDB::db_get $DB, undef, $key, my $data;
		531
		532	$! ? ()
		533	: $data
		534	}
		535	}
		536
		537	sub db_put($$$) {
		538	BDB::dbreq_pri 4;
		539	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		540	}
		541
		542	=item cf::cache $id => [$paths...], $processversion => $process
		543
		544	Generic caching function that returns the value of the resource $id,
		545	caching and regenerating as required.
		546
		547	This function can block.
		548
		549	=cut
		550
		551	sub cache {
		552	my ($id, $src, $processversion, $process) = @_;
		553
		554	my $meta =
		555	join "\x00",
		556	$processversion,
		557	map {
		558	aio_stat $_
		559	and Carp::croak "$_: $!";
		560
		561	($_, (stat _)[7,9])
		562	} @$src;
		563
		564	my $dbmeta = db_get cache => "$id/meta";
		565	if ($dbmeta ne $meta) {
		566	# changed, we may need to process
		567
		568	my @data;
		569	my $md5;
		570
		571	for (0 .. $#$src) {
		572	0 <= aio_load $src->[$_], $data[$_]
		573	or Carp::croak "$src->[$_]: $!";
		574	}
		575
		576	# if processing is expensive, check
		577	# checksum first
		578	if (1) {
		579	$md5 =
		580	join "\x00",
		581	$processversion,
		582	map {
		583	cf::cede_to_tick;
		584	($src->[$_], Digest::MD5::md5_hex $data[$_])
		585	} 0.. $#$src;
		586
		587
		588	my $dbmd5 = db_get cache => "$id/md5";
		589	if ($dbmd5 eq $md5) {
		590	db_put cache => "$id/meta", $meta;
		591
		592	return db_get cache => "$id/data";
		593	}
		594	}
		595
		596	my $t1 = Time::HiRes::time;
		597	my $data = $process->(\@data);
		598	my $t2 = Time::HiRes::time;
		599
		600	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		601
		602	db_put cache => "$id/data", $data;
		603	db_put cache => "$id/md5" , $md5;
		604	db_put cache => "$id/meta", $meta;
		605
		606	return $data;
		607	}
		608
		609	db_get cache => "$id/data"
		610	}
		611
		612	=item cf::datalog type => key => value, ...
		613
		614	Log a datalog packet of the given type with the given key-value pairs.
		615
		616	=cut
		617
		618	sub datalog($@) {
		619	my ($type, %kv) = @_;
		620	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		621	}
		622
245	=back	623	=back
246		624
247	=cut	625	=cut
248		626
249	#############################################################################	627	#############################################################################
…		…
254	attach callbacks/event handlers (a collection of which is called an "attachment")	632	attach callbacks/event handlers (a collection of which is called an "attachment")
255	to it. All such attachable objects support the following methods.	633	to it. All such attachable objects support the following methods.
256		634
257	In the following description, CLASS can be any of C<global>, C<object>	635	In the following description, CLASS can be any of C<global>, C<object>
258	C<player>, C<client> or C<map> (i.e. the attachable objects in	636	C<player>, C<client> or C<map> (i.e. the attachable objects in
259	crossfire+).	637	Crossfire TRT).
260		638
261	=over 4	639	=over 4
262		640
263	=item $attachable->attach ($attachment, key => $value...)	641	=item $attachable->attach ($attachment, key => $value...)
264		642
…		…
378	our @CB_TYPE = (); # registry for type (cf-object class) based events	756	our @CB_TYPE = (); # registry for type (cf-object class) based events
379	our @CB_MAP = ();	757	our @CB_MAP = ();
380		758
381	my %attachment;	759	my %attachment;
382		760
		761	sub cf::attachable::thawer_merge {
		762	# simply override everything except _meta
		763	local $_[0]{_meta};
		764	%{$_[0]} = %{$_[1]};
		765	}
		766
383	sub _attach_cb($$$$) {	767	sub _attach_cb($$$$) {
384	my ($registry, $event, $prio, $cb) = @_;	768	my ($registry, $event, $prio, $cb) = @_;
385		769
386	use sort 'stable';	770	use sort 'stable';
387		771
…		…
421	$registry = $CB_TYPE[$object_type] ||= [];	805	$registry = $CB_TYPE[$object_type] ||= [];
422		806
423	} elsif ($type eq "subtype") {	807	} elsif ($type eq "subtype") {
424	defined $object_type or Carp::croak "subtype specified without type";	808	defined $object_type or Carp::croak "subtype specified without type";
425	my $object_subtype = shift @arg;	809	my $object_subtype = shift @arg;
426	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	810	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
427		811
428	} elsif ($type eq "package") {	812	} elsif ($type eq "package") {
429	my $pkg = shift @arg;	813	my $pkg = shift @arg;
430		814
431	while (my ($name, $id) = each %cb_id) {	815	while (my ($name, $id) = each %cb_id) {
…		…
460	_attach $registry, $klass, @attach;	844	_attach $registry, $klass, @attach;
461	}	845	}
462		846
463	$obj->{$name} = \%arg;	847	$obj->{$name} = \%arg;
464	} else {	848	} else {
465	warn "object uses attachment '$name' that is not available, postponing.\n";	849	warn "object uses attachment '$name' which is not available, postponing.\n";
466	}	850	}
467		851
468	$obj->{_attachment}{$name} = undef;	852	$obj->{_attachment}{$name} = undef;
469	}	853	}
470		854
…		…
472	if (ref $_[0]) {	856	if (ref $_[0]) {
473	_object_attach @_;	857	_object_attach @_;
474	} else {	858	} else {
475	_attach shift->_attach_registry, @_;	859	_attach shift->_attach_registry, @_;
476	}	860	}
		861	_recalc_want;
477	};	862	};
478		863
479	# all those should be optimised	864	# all those should be optimised
480	sub cf::attachable::detach {	865	sub cf::attachable::detach {
481	my ($obj, $name) = @_;	866	my ($obj, $name) = @_;
…		…
484	delete $obj->{_attachment}{$name};	869	delete $obj->{_attachment}{$name};
485	reattach ($obj);	870	reattach ($obj);
486	} else {	871	} else {
487	Carp::croak "cannot, currently, detach class attachments";	872	Carp::croak "cannot, currently, detach class attachments";
488	}	873	}
		874	_recalc_want;
489	};	875	};
490		876
491	sub cf::attachable::attached {	877	sub cf::attachable::attached {
492	my ($obj, $name) = @_;	878	my ($obj, $name) = @_;
493		879
…		…
508	";	894	";
509	die if $@;	895	die if $@;
510	}	896	}
511		897
512	our $override;	898	our $override;
513	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	899	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
514		900
515	sub override {	901	sub override {
516	$override = 1;	902	$override = 1;
517	@invoke_results = ();	903	@INVOKE_RESULTS = (@_);
518	}	904	}
519		905
520	sub do_invoke {	906	sub do_invoke {
521	my $event = shift;	907	my $event = shift;
522	my $callbacks = shift;	908	my $callbacks = shift;
523		909
524	@invoke_results = ();	910	@INVOKE_RESULTS = ();
525		911
526	local $override;	912	local $override;
527		913
528	for (@$callbacks) {	914	for (@$callbacks) {
529	eval { &{$_->[1]} };	915	eval { &{$_->[1]} };
…		…
546		932
547	Generate an object-specific event with the given arguments.	933	Generate an object-specific event with the given arguments.
548		934
549	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	935	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
550	removed in future versions), and there is no public API to access override	936	removed in future versions), and there is no public API to access override
551	results (if you must, access C<@cf::invoke_results> directly).	937	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
552		938
553	=back	939	=back
554		940
555	=cut	941	=cut
556		942
557	#############################################################################	943	#############################################################################
558	# object support	944	# object support
		945	#
		946
		947	sub _can_merge {
		948	my ($ob1, $ob2) = @_;
		949
		950	local $Storable::canonical = 1;
		951	my $fob1 = Storable::freeze $ob1;
		952	my $fob2 = Storable::freeze $ob2;
		953
		954	$fob1 eq $fob2
		955	}
559		956
560	sub reattach {	957	sub reattach {
561	# basically do the same as instantiate, without calling instantiate	958	# basically do the same as instantiate, without calling instantiate
562	my ($obj) = @_;	959	my ($obj) = @_;
		960
		961	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
563		962
564	my $registry = $obj->registry;	963	my $registry = $obj->registry;
565		964
566	@$registry = ();	965	@$registry = ();
567		966
…		…
606	);	1005	);
607		1006
608	sub object_freezer_save {	1007	sub object_freezer_save {
609	my ($filename, $rdata, $objs) = @_;	1008	my ($filename, $rdata, $objs) = @_;
610		1009
		1010	my $guard = cf::lock_acquire "io";
		1011
611	sync_job {	1012	sync_job {
612	if (length $$rdata) {	1013	if (length $$rdata) {
613	warn sprintf "saving %s (%d,%d)\n",	1014	warn sprintf "saving %s (%d,%d)\n",
614	$filename, length $$rdata, scalar @$objs;	1015	$filename, length $$rdata, scalar @$objs;
615		1016
616	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1017	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
617	chmod SAVE_MODE, $fh;	1018	chmod SAVE_MODE, $fh;
618	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1019	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
619	aio_fsync $fh;	1020	aio_fsync $fh if $cf::USE_FSYNC;
620	close $fh;	1021	close $fh;
621		1022
622	if (@$objs) {	1023	if (@$objs) {
623	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1024	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
624	chmod SAVE_MODE, $fh;	1025	chmod SAVE_MODE, $fh;
625	my $data = Storable::nfreeze { version => 1, objs => $objs };	1026	my $data = Storable::nfreeze { version => 1, objs => $objs };
626	aio_write $fh, 0, (length $data), $data, 0;	1027	aio_write $fh, 0, (length $data), $data, 0;
627	aio_fsync $fh;	1028	aio_fsync $fh if $cf::USE_FSYNC;
628	close $fh;	1029	close $fh;
629	aio_rename "$filename.pst~", "$filename.pst";	1030	aio_rename "$filename.pst~", "$filename.pst";
630	}	1031	}
631	} else {	1032	} else {
632	aio_unlink "$filename.pst";	1033	aio_unlink "$filename.pst";
…		…
638	}	1039	}
639	} else {	1040	} else {
640	aio_unlink $filename;	1041	aio_unlink $filename;
641	aio_unlink "$filename.pst";	1042	aio_unlink "$filename.pst";
642	}	1043	}
643	}	1044	};
		1045
		1046	undef $guard;
644	}	1047	}
645		1048
646	sub object_freezer_as_string {	1049	sub object_freezer_as_string {
647	my ($rdata, $objs) = @_;	1050	my ($rdata, $objs) = @_;
648		1051
…		…
653		1056
654	sub object_thawer_load {	1057	sub object_thawer_load {
655	my ($filename) = @_;	1058	my ($filename) = @_;
656		1059
657	my ($data, $av);	1060	my ($data, $av);
		1061
		1062	my $guard = cf::lock_acquire "io";
658		1063
659	(aio_load $filename, $data) >= 0	1064	(aio_load $filename, $data) >= 0
660	or return;	1065	or return;
661		1066
662	unless (aio_stat "$filename.pst") {	1067	unless (aio_stat "$filename.pst") {
663	(aio_load "$filename.pst", $av) >= 0	1068	(aio_load "$filename.pst", $av) >= 0
664	or return;	1069	or return;
		1070
		1071	undef $guard;
665	$av = eval { (Storable::thaw <$av>)->{objs} };	1072	$av = eval { (Storable::thaw $av)->{objs} };
666	}	1073	}
667		1074
		1075	warn sprintf "loading %s (%d)\n",
		1076	$filename, length $data, scalar @{$av || []};
		1077
668	return ($data, $av);	1078	($data, $av)
669	}	1079	}
		1080
		1081	=head2 COMMAND CALLBACKS
		1082
		1083	=over 4
		1084
		1085	=cut
670		1086
671	#############################################################################	1087	#############################################################################
672	# command handling &c	1088	# command handling &c
673		1089
674	=item cf::register_command $name => \&callback($ob,$args);	1090	=item cf::register_command $name => \&callback($ob,$args);
…		…
687	push @{ $COMMAND{$name} }, [$caller, $cb];	1103	push @{ $COMMAND{$name} }, [$caller, $cb];
688	}	1104	}
689		1105
690	=item cf::register_extcmd $name => \&callback($pl,$packet);	1106	=item cf::register_extcmd $name => \&callback($pl,$packet);
691		1107
692	Register a callbackf ro execution when the client sends an extcmd packet.	1108	Register a callback for execution when the client sends an (synchronous)
		1109	extcmd packet. Ext commands will be processed in the order they are
		1110	received by the server, like other user commands. The first argument is
		1111	the logged-in player. Ext commands can only be processed after a player
		1112	has logged in successfully.
693		1113
694	If the callback returns something, it is sent back as if reply was being	1114	If the callback returns something, it is sent back as if reply was being
695	called.	1115	called.
696		1116
		1117	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1118
		1119	Register a callback for execution when the client sends an (asynchronous)
		1120	exticmd packet. Exti commands are processed by the server as soon as they
		1121	are received, i.e. out of order w.r.t. other commands. The first argument
		1122	is a client socket. Exti commands can be received anytime, even before
		1123	log-in.
		1124
		1125	If the callback returns something, it is sent back as if reply was being
		1126	called.
		1127
697	=cut	1128	=cut
698		1129
699	sub register_extcmd {	1130	sub register_extcmd {
700	my ($name, $cb) = @_;	1131	my ($name, $cb) = @_;
701		1132
702	my $caller = caller;
703	#warn "registering extcmd '$name' to '$caller'";
704
705	$EXTCMD{$name} = [$cb, $caller];	1133	$EXTCMD{$name} = $cb;
		1134	}
		1135
		1136	sub register_exticmd {
		1137	my ($name, $cb) = @_;
		1138
		1139	$EXTICMD{$name} = $cb;
706	}	1140	}
707		1141
708	cf::player->attach (	1142	cf::player->attach (
709	on_command => sub {	1143	on_command => sub {
710	my ($pl, $name, $params) = @_;	1144	my ($pl, $name, $params) = @_;
…		…
719	cf::override;	1153	cf::override;
720	},	1154	},
721	on_extcmd => sub {	1155	on_extcmd => sub {
722	my ($pl, $buf) = @_;	1156	my ($pl, $buf) = @_;
723		1157
724	my $msg = eval { from_json $buf };	1158	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
725		1159
726	if (ref $msg) {	1160	if (ref $msg) {
		1161	my ($type, $reply, @payload) =
		1162	"ARRAY" eq ref $msg
		1163	? @$msg
		1164	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1165
		1166	my @reply;
		1167
727	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1168	if (my $cb = $EXTCMD{$type}) {
728	if (my %reply = $cb->[0]->($pl, $msg)) {	1169	@reply = $cb->($pl, @payload);
729	$pl->ext_reply ($msg->{msgid}, %reply);
730	}
731	}	1170	}
		1171
		1172	$pl->ext_reply ($reply, @reply)
		1173	if $reply;
		1174
732	} else {	1175	} else {
733	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1176	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
734	}	1177	}
735		1178
736	cf::override;	1179	cf::override;
737	},	1180	},
738	);	1181	);
739		1182
		1183	sub load_extensions {
		1184	cf::sync_job {
		1185	my %todo;
		1186
		1187	for my $path (<$LIBDIR/*.ext>) {
		1188	next unless -r $path;
		1189
		1190	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1191	my $base = $1;
		1192	my $pkg = $1;
		1193	$pkg =~ s/[^[:word:]]/_/g;
		1194	$pkg = "ext::$pkg";
		1195
		1196	open my $fh, "<:utf8", $path
		1197	or die "$path: $!";
		1198
		1199	my $source = do { local $/; <$fh> };
		1200
		1201	my %ext = (
		1202	path => $path,
		1203	base => $base,
		1204	pkg => $pkg,
		1205	);
		1206
		1207	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1208	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1209
		1210	$ext{source} =
		1211	"package $pkg; use strict; use utf8;\n"
		1212	. "#line 1 \"$path\"\n{\n"
		1213	. $source
		1214	. "\n};\n1";
		1215
		1216	$todo{$base} = \%ext;
		1217	}
		1218
		1219	my %done;
		1220	while (%todo) {
		1221	my $progress;
		1222
		1223	while (my ($k, $v) = each %todo) {
		1224	for (split /,\s*/, $v->{meta}{depends}) {
		1225	goto skip
		1226	unless exists $done{$_};
		1227	}
		1228
		1229	warn "... loading '$k' into '$v->{pkg}'\n";
		1230
		1231	unless (eval $v->{source}) {
		1232	my $msg = $@ ? "$v->{path}: $@\n"
		1233	: "$v->{base}: extension inactive.\n";
		1234
		1235	if (exists $v->{meta}{mandatory}) {
		1236	warn $msg;
		1237	warn "mandatory extension failed to load, exiting.\n";
		1238	exit 1;
		1239	}
		1240
		1241	warn $msg;
		1242	}
		1243
		1244	$done{$k} = delete $todo{$k};
		1245	push @EXTS, $v->{pkg};
		1246	$progress = 1;
		1247	}
		1248
		1249	skip:
		1250	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1251	unless $progress;
		1252	}
		1253	};
		1254	}
		1255
		1256	#############################################################################
		1257
		1258	=back
		1259
		1260	=head2 CORE EXTENSIONS
		1261
		1262	Functions and methods that extend core crossfire objects.
		1263
		1264	=cut
		1265
		1266	package cf::player;
		1267
		1268	use Coro::AIO;
		1269
		1270	=head3 cf::player
		1271
		1272	=over 4
		1273
		1274	=item cf::player::find $login
		1275
		1276	Returns the given player object, loading it if necessary (might block).
		1277
		1278	=cut
		1279
		1280	sub playerdir($) {
		1281	"$PLAYERDIR/"
		1282	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1283	}
		1284
		1285	sub path($) {
		1286	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1287
		1288	(playerdir $login) . "/playerdata"
		1289	}
		1290
		1291	sub find_active($) {
		1292	$cf::PLAYER{$_[0]}
		1293	and $cf::PLAYER{$_[0]}->active
		1294	and $cf::PLAYER{$_[0]}
		1295	}
		1296
		1297	sub exists($) {
		1298	my ($login) = @_;
		1299
		1300	$cf::PLAYER{$login}
		1301	or cf::sync_job { !aio_stat path $login }
		1302	}
		1303
		1304	sub find($) {
		1305	return $cf::PLAYER{$_[0]} || do {
		1306	my $login = $_[0];
		1307
		1308	my $guard = cf::lock_acquire "user_find:$login";
		1309
		1310	$cf::PLAYER{$_[0]} || do {
		1311	# rename old playerfiles to new ones
		1312	#TODO: remove when no longer required
		1313	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1314	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1315	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1316	aio_unlink +(playerdir $login) . "/$login.pl";
		1317
		1318	my $f = new_from_file cf::object::thawer path $login
		1319	or return;
		1320
		1321	$f->next;
		1322	my $pl = cf::player::load_pl $f
		1323	or return;
		1324	local $cf::PLAYER_LOADING{$login} = $pl;
		1325	$f->resolve_delayed_derefs;
		1326	$cf::PLAYER{$login} = $pl
		1327	}
		1328	}
		1329	}
		1330
		1331	sub save($) {
		1332	my ($pl) = @_;
		1333
		1334	return if $pl->{deny_save};
		1335
		1336	my $path = path $pl;
		1337	my $guard = cf::lock_acquire "user_save:$path";
		1338
		1339	return if $pl->{deny_save};
		1340
		1341	aio_mkdir playerdir $pl, 0770;
		1342	$pl->{last_save} = $cf::RUNTIME;
		1343
		1344	$pl->save_pl ($path);
		1345	cf::cede_to_tick;
		1346	}
		1347
		1348	sub new($) {
		1349	my ($login) = @_;
		1350
		1351	my $self = create;
		1352
		1353	$self->ob->name ($login);
		1354	$self->{deny_save} = 1;
		1355
		1356	$cf::PLAYER{$login} = $self;
		1357
		1358	$self
		1359	}
		1360
		1361	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1362
		1363	=cut
		1364
		1365	sub send_msg {
		1366	my $ns = shift->ns
		1367	or return;
		1368	$ns->send_msg (@_);
		1369	}
		1370
		1371	=item $pl->quit_character
		1372
		1373	Nukes the player without looking back. If logged in, the connection will
		1374	be destroyed. May block for a long time.
		1375
		1376	=cut
		1377
		1378	sub quit_character {
		1379	my ($pl) = @_;
		1380
		1381	my $name = $pl->ob->name;
		1382
		1383	$pl->{deny_save} = 1;
		1384	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1385
		1386	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1387	$pl->deactivate;
		1388	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1389	$pl->ns->destroy if $pl->ns;
		1390
		1391	my $path = playerdir $pl;
		1392	my $temp = "$path~$cf::RUNTIME~deleting~";
		1393	aio_rename $path, $temp;
		1394	delete $cf::PLAYER{$pl->ob->name};
		1395	$pl->destroy;
		1396
		1397	my $prefix = qr<^~\Q$name\E/>;
		1398
		1399	# nuke player maps
		1400	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1401
		1402	IO::AIO::aio_rmtree $temp;
		1403	}
		1404
		1405	=item $pl->kick
		1406
		1407	Kicks a player out of the game. This destroys the connection.
		1408
		1409	=cut
		1410
		1411	sub kick {
		1412	my ($pl, $kicker) = @_;
		1413
		1414	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1415	$pl->killer ("kicked");
		1416	$pl->ns->destroy;
		1417	}
		1418
		1419	=item cf::player::list_logins
		1420
		1421	Returns am arrayref of all valid playernames in the system, can take a
		1422	while and may block, so not sync_job-capable, ever.
		1423
		1424	=cut
		1425
		1426	sub list_logins {
		1427	my $dirs = aio_readdir $PLAYERDIR
		1428	or return [];
		1429
		1430	my @logins;
		1431
		1432	for my $login (@$dirs) {
		1433	my $path = path $login;
		1434
		1435	# a .pst is a dead give-away for a valid player
		1436	unless (-e "$path.pst") {
		1437	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1438	aio_read $fh, 0, 512, my $buf, 0 or next;
		1439	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1440	}
		1441
		1442	utf8::decode $login;
		1443	push @logins, $login;
		1444	}
		1445
		1446	\@logins
		1447	}
		1448
		1449	=item $player->maps
		1450
		1451	Returns an arrayref of map paths that are private for this
		1452	player. May block.
		1453
		1454	=cut
		1455
		1456	sub maps($) {
		1457	my ($pl) = @_;
		1458
		1459	$pl = ref $pl ? $pl->ob->name : $pl;
		1460
		1461	my $files = aio_readdir playerdir $pl
		1462	or return;
		1463
		1464	my @paths;
		1465
		1466	for (@$files) {
		1467	utf8::decode $_;
		1468	next if /\.(?:pl|pst)$/;
		1469	next unless /^$PATH_SEP/o;
		1470
		1471	push @paths, cf::map::normalise "~$pl/$_";
		1472	}
		1473
		1474	\@paths
		1475	}
		1476
		1477	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1478
		1479	Expand crossfire pod fragments into protocol xml.
		1480
		1481	=cut
		1482
		1483	sub expand_cfpod {
		1484	((my $self), (local $_)) = @_;
		1485
		1486	# escape & and <
		1487	s/&/&amp;/g;
		1488	s/(?<![BIUGHT])</&lt;/g;
		1489
		1490	# this is buggy, it needs to properly take care of nested <'s
		1491
		1492	1 while
		1493	# replace B<>, I<>, U<> etc.
		1494	s/B<([^\>]*)>/<b>$1<\/b>/
		1495	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1496	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1497	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1498	# replace G<male|female> tags
		1499	|| s{G<([^>|]*)\|([^>]*)>}{
		1500	$self->gender ? $2 : $1
		1501	}ge
		1502	# replace H<hint text>
		1503	|| s{H<([^\>]*)>}
		1504	{
		1505	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1506	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1507	"")
		1508	[$self->{hintmode}]
		1509	}ge;
		1510
		1511	# create single paragraphs (very hackish)
		1512	s/(?<=\S)\n(?=\w)/ /g;
		1513
		1514	# compress some whitespace
		1515	s/\s+\n/\n/g; # ws line-ends
		1516	s/\n\n+/\n/g; # double lines
		1517	s/^\n+//; # beginning lines
		1518	s/\n+$//; # ending lines
		1519
		1520	$_
		1521	}
		1522
		1523	sub hintmode {
		1524	$_[0]{hintmode} = $_[1] if @_ > 1;
		1525	$_[0]{hintmode}
		1526	}
		1527
		1528	=item $player->ext_reply ($msgid, @msg)
		1529
		1530	Sends an ext reply to the player.
		1531
		1532	=cut
		1533
		1534	sub ext_reply($$@) {
		1535	my ($self, $id, @msg) = @_;
		1536
		1537	$self->ns->ext_reply ($id, @msg)
		1538	}
		1539
		1540	=item $player->ext_msg ($type, @msg)
		1541
		1542	Sends an ext event to the client.
		1543
		1544	=cut
		1545
		1546	sub ext_msg($$@) {
		1547	my ($self, $type, @msg) = @_;
		1548
		1549	$self->ns->ext_msg ($type, @msg);
		1550	}
		1551
		1552	=head3 cf::region
		1553
		1554	=over 4
		1555
		1556	=cut
		1557
		1558	package cf::region;
		1559
		1560	=item cf::region::find_by_path $path
		1561
		1562	Tries to decuce the likely region for a map knowing only its path.
		1563
		1564	=cut
		1565
		1566	sub find_by_path($) {
		1567	my ($path) = @_;
		1568
		1569	my ($match, $specificity);
		1570
		1571	for my $region (list) {
		1572	if ($region->{match} && $path =~ $region->{match}) {
		1573	($match, $specificity) = ($region, $region->specificity)
		1574	if $region->specificity > $specificity;
		1575	}
		1576	}
		1577
		1578	$match
		1579	}
		1580
		1581	=back
		1582
		1583	=head3 cf::map
		1584
		1585	=over 4
		1586
		1587	=cut
		1588
		1589	package cf::map;
		1590
		1591	use Fcntl;
		1592	use Coro::AIO;
		1593
		1594	use overload
		1595	'""' => \&as_string,
		1596	fallback => 1;
		1597
		1598	our $MAX_RESET = 3600;
		1599	our $DEFAULT_RESET = 3000;
		1600
		1601	sub generate_random_map {
		1602	my ($self, $rmp) = @_;
		1603	# mit "rum" bekleckern, nicht
		1604	$self->_create_random_map (
		1605	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1606	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1607	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1608	$rmp->{exit_on_final_map},
		1609	$rmp->{xsize}, $rmp->{ysize},
		1610	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1611	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1612	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1613	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1614	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1615	(cf::region::find $rmp->{region}), $rmp->{custom}
		1616	)
		1617	}
		1618
		1619	=item cf::map->register ($regex, $prio)
		1620
		1621	Register a handler for the map path matching the given regex at the
		1622	givne priority (higher is better, built-in handlers have priority 0, the
		1623	default).
		1624
		1625	=cut
		1626
740	sub register {	1627	sub register {
		1628	my (undef, $regex, $prio) = @_;
		1629	my $pkg = caller;
		1630
		1631	no strict;
		1632	push @{"$pkg\::ISA"}, __PACKAGE__;
		1633
		1634	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1635	}
		1636
		1637	# also paths starting with '/'
		1638	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1639
		1640	sub thawer_merge {
741	my ($base, $pkg) = @_;	1641	my ($self, $merge) = @_;
742		1642
743	#TODO	1643	# we have to keep some variables in memory intact
744	}	1644	local $self->{path};
		1645	local $self->{load_path};
745		1646
746	sub load_extension {	1647	$self->SUPER::thawer_merge ($merge);
		1648	}
		1649
		1650	sub normalise {
747	my ($path) = @_;	1651	my ($path, $base) = @_;
748		1652
749	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1653	$path = "$path"; # make sure its a string
750	my $base = $1;
751	my $pkg = $1;
752	$pkg =~ s/[^[:word:]]/_/g;
753	$pkg = "ext::$pkg";
754		1654
755	warn "loading '$path' into '$pkg'\n";	1655	$path =~ s/\.map$//;
756		1656
757	open my $fh, "<:utf8", $path	1657	# map plan:
758	or die "$path: $!";	1658	#
		1659	# /! non-realised random map exit (special hack!)
		1660	# {... are special paths that are not being touched
		1661	# ?xxx/... are special absolute paths
		1662	# ?random/... random maps
		1663	# /... normal maps
		1664	# ~user/... per-player map of a specific user
759		1665
760	my $source =	1666	$path =~ s/$PATH_SEP/\//go;
761	"package $pkg; use strict; use utf8;\n"
762	. "#line 1 \"$path\"\n{\n"
763	. (do { local $/; <$fh> })
764	. "\n};\n1";
765		1667
766	eval $source	1668	# treat it as relative path if it starts with
767	or die $@ ? "$path: $@\n"	1669	# something that looks reasonable
768	: "extension disabled.\n";	1670	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1671	$base or Carp::carp "normalise called with relative path and no base: '$path'";
769		1672
770	push @exts, $pkg;	1673	$base =~ s{[^/]+/?$}{};
771	$ext_pkg{$base} = $pkg;	1674	$path = "$base/$path";
772
773	# no strict 'refs';
774	# @{"$pkg\::ISA"} = ext::;
775
776	register $base, $pkg;
777	}
778
779	sub unload_extension {
780	my ($pkg) = @_;
781
782	warn "removing extension $pkg\n";
783
784	# remove hooks
785	#TODO
786	# for my $idx (0 .. $#PLUGIN_EVENT) {
787	# delete $hook[$idx]{$pkg};
788	# }	1675	}
789		1676
790	# remove commands	1677	for ($path) {
791	for my $name (keys %COMMAND) {	1678	redo if s{//}{/};
792	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1679	redo if s{/\.?/}{/};
		1680	redo if s{/[^/]+/\.\./}{/};
		1681	}
793		1682
794	if (@cb) {	1683	$path
795	$COMMAND{$name} = \@cb;	1684	}
		1685
		1686	sub new_from_path {
		1687	my (undef, $path, $base) = @_;
		1688
		1689	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1690
		1691	$path = normalise $path, $base;
		1692
		1693	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1694	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1695	my $self = bless cf::map::new, $pkg;
		1696	$self->{path} = $path; $self->path ($path);
		1697	$self->init; # pass $1 etc.
		1698	return $self;
		1699	}
		1700	}
		1701
		1702	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1703	()
		1704	}
		1705
		1706	sub init {
		1707	my ($self) = @_;
		1708
		1709	$self
		1710	}
		1711
		1712	sub as_string {
		1713	my ($self) = @_;
		1714
		1715	"$self->{path}"
		1716	}
		1717
		1718	# the displayed name, this is a one way mapping
		1719	sub visible_name {
		1720	&as_string
		1721	}
		1722
		1723	# the original (read-only) location
		1724	sub load_path {
		1725	my ($self) = @_;
		1726
		1727	"$MAPDIR/$self->{path}.map"
		1728	}
		1729
		1730	# the temporary/swap location
		1731	sub save_path {
		1732	my ($self) = @_;
		1733
		1734	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1735	"$TMPDIR/$path.map"
		1736	}
		1737
		1738	# the unique path, undef == no special unique path
		1739	sub uniq_path {
		1740	my ($self) = @_;
		1741
		1742	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1743	"$UNIQUEDIR/$path"
		1744	}
		1745
		1746	# and all this just because we cannot iterate over
		1747	# all maps in C++...
		1748	sub change_all_map_light {
		1749	my ($change) = @_;
		1750
		1751	$_->change_map_light ($change)
		1752	for grep $_->outdoor, values %cf::MAP;
		1753	}
		1754
		1755	sub decay_objects {
		1756	my ($self) = @_;
		1757
		1758	return if $self->{deny_reset};
		1759
		1760	$self->do_decay_objects;
		1761	}
		1762
		1763	sub unlink_save {
		1764	my ($self) = @_;
		1765
		1766	utf8::encode (my $save = $self->save_path);
		1767	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1768	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1769	}
		1770
		1771	sub load_header_from($) {
		1772	my ($self, $path) = @_;
		1773
		1774	utf8::encode $path;
		1775	my $f = new_from_file cf::object::thawer $path
		1776	or return;
		1777
		1778	$self->_load_header ($f)
		1779	or return;
		1780
		1781	local $MAP_LOADING{$self->{path}} = $self;
		1782	$f->resolve_delayed_derefs;
		1783
		1784	$self->{load_path} = $path;
		1785
		1786	1
		1787	}
		1788
		1789	sub load_header_orig {
		1790	my ($self) = @_;
		1791
		1792	$self->load_header_from ($self->load_path)
		1793	}
		1794
		1795	sub load_header_temp {
		1796	my ($self) = @_;
		1797
		1798	$self->load_header_from ($self->save_path)
		1799	}
		1800
		1801	sub prepare_temp {
		1802	my ($self) = @_;
		1803
		1804	$self->last_access ((delete $self->{last_access})
		1805	|| $cf::RUNTIME); #d#
		1806	# safety
		1807	$self->{instantiate_time} = $cf::RUNTIME
		1808	if $self->{instantiate_time} > $cf::RUNTIME;
		1809	}
		1810
		1811	sub prepare_orig {
		1812	my ($self) = @_;
		1813
		1814	$self->{load_original} = 1;
		1815	$self->{instantiate_time} = $cf::RUNTIME;
		1816	$self->last_access ($cf::RUNTIME);
		1817	$self->instantiate;
		1818	}
		1819
		1820	sub load_header {
		1821	my ($self) = @_;
		1822
		1823	if ($self->load_header_temp) {
		1824	$self->prepare_temp;
796	} else {	1825	} else {
797	delete $COMMAND{$name};	1826	$self->load_header_orig
798	}	1827	or return;
		1828	$self->prepare_orig;
		1829	}
		1830
		1831	$self->{deny_reset} = 1
		1832	if $self->no_reset;
		1833
		1834	$self->default_region (cf::region::find_by_path $self->{path})
		1835	unless $self->default_region;
		1836
799	}	1837	1
		1838	}
800		1839
801	# remove extcmds	1840	sub find;
802	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1841	sub find {
803	delete $EXTCMD{$name};	1842	my ($path, $origin) = @_;
		1843
		1844	$path = normalise $path, $origin && $origin->path;
		1845
		1846	cf::lock_wait "map_find:$path";
		1847
		1848	$cf::MAP{$path} || do {
		1849	my $guard = cf::lock_acquire "map_find:$path";
		1850	my $map = new_from_path cf::map $path
		1851	or return;
		1852
		1853	$map->{last_save} = $cf::RUNTIME;
		1854
		1855	$map->load_header
		1856	or return;
		1857
		1858	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1859	# doing this can freeze the server in a sync job, obviously
		1860	#$cf::WAIT_FOR_TICK->wait;
		1861	$map->reset;
		1862	undef $guard;
		1863	return find $path;
		1864	}
		1865
		1866	$cf::MAP{$path} = $map
		1867	}
		1868	}
		1869
		1870	sub pre_load { }
		1871	sub post_load { }
		1872
		1873	sub load {
		1874	my ($self) = @_;
		1875
		1876	local $self->{deny_reset} = 1; # loading can take a long time
		1877
		1878	my $path = $self->{path};
		1879
804	}	1880	{
		1881	my $guard = cf::lock_acquire "map_data:$path";
805		1882
806	if (my $cb = $pkg->can ("unload")) {	1883	return unless $self->valid;
807	eval {	1884	return if $self->in_memory != cf::MAP_SWAPPED;
808	$cb->($pkg);	1885
		1886	$self->in_memory (cf::MAP_LOADING);
		1887
		1888	$self->alloc;
		1889
		1890	$self->pre_load;
		1891	cf::cede_to_tick;
		1892
		1893	my $f = new_from_file cf::object::thawer $self->{load_path};
		1894	$f->skip_block;
		1895	$self->_load_objects ($f)
		1896	or return;
		1897
		1898	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1899	if delete $self->{load_original};
		1900
		1901	if (my $uniq = $self->uniq_path) {
		1902	utf8::encode $uniq;
		1903	unless (aio_stat $uniq) {
		1904	if (my $f = new_from_file cf::object::thawer $uniq) {
		1905	$self->clear_unique_items;
		1906	$self->_load_objects ($f);
		1907	$f->resolve_delayed_derefs;
		1908	}
809	1	1909	}
810	} or warn "$pkg unloaded, but with errors: $@";	1910	}
811	}
812		1911
813	Symbol::delete_package $pkg;	1912	$f->resolve_delayed_derefs;
814	}
815		1913
816	sub load_extensions {	1914	cf::cede_to_tick;
817	for my $ext (<$LIBDIR/*.ext>) {	1915	# now do the right thing for maps
818	next unless -r $ext;	1916	$self->link_multipart_objects;
819	eval {	1917	$self->difficulty ($self->estimate_difficulty)
820	load_extension $ext;	1918	unless $self->difficulty;
821	1	1919	cf::cede_to_tick;
822	} or warn "$ext not loaded: $@";
823	}
824	}
825		1920
826	#############################################################################	1921	unless ($self->{deny_activate}) {
827	# load/save/clean perl data associated with a map	1922	$self->decay_objects;
		1923	$self->fix_auto_apply;
		1924	$self->update_buttons;
		1925	cf::cede_to_tick;
		1926	$self->set_darkness_map;
		1927	cf::cede_to_tick;
		1928	$self->activate;
		1929	}
828		1930
829	*cf::mapsupport::on_clean = sub {	1931	$self->{last_save} = $cf::RUNTIME;
		1932	$self->last_access ($cf::RUNTIME);
		1933
		1934	$self->in_memory (cf::MAP_IN_MEMORY);
		1935	}
		1936
		1937	$self->post_load;
		1938	}
		1939
		1940	sub customise_for {
		1941	my ($self, $ob) = @_;
		1942
		1943	return find "~" . $ob->name . "/" . $self->{path}
		1944	if $self->per_player;
		1945
		1946	# return find "?party/" . $ob->name . "/" . $self->{path}
		1947	# if $self->per_party;
		1948
		1949	$self
		1950	}
		1951
		1952	# find and load all maps in the 3x3 area around a map
		1953	sub load_neighbours {
830	my ($map) = @_;	1954	my ($map) = @_;
831		1955
832	my $path = $map->tmpname;	1956	my @neigh; # diagonal neighbours
833	defined $path or return;
834		1957
835	unlink "$path.pst";	1958	for (0 .. 3) {
836	};	1959	my $neigh = $map->tile_path ($_)
		1960	or next;
		1961	$neigh = find $neigh, $map
		1962	or next;
		1963	$neigh->load;
837		1964
838	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1965	push @neigh,
		1966	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		1967	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1968	}
839		1969
840	#############################################################################	1970	for (grep defined $_->[0], @neigh) {
841	# load/save perl data associated with player->ob objects	1971	my ($path, $origin) = @$_;
842		1972	my $neigh = find $path, $origin
843	sub all_objects(@) {	1973	or next;
844	@_, map all_objects ($_->inv), @_	1974	$neigh->load;
		1975	}
845	}	1976	}
846		1977
847	# TODO: compatibility cruft, remove when no longer needed	1978	sub find_sync {
848	cf::player->attach (	1979	my ($path, $origin) = @_;
849	on_load => sub {
850	my ($pl, $path) = @_;
851		1980
852	for my $o (all_objects $pl->ob) {	1981	cf::sync_job { find $path, $origin }
853	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1982	}
854	$o->set_ob_key_value ("_perl_data");
855		1983
856	%$o = %{ Storable::thaw pack "H*", $value };	1984	sub do_load_sync {
		1985	my ($map) = @_;
		1986
		1987	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		1988	if $Coro::current == $Coro::main;
		1989
		1990	cf::sync_job { $map->load };
		1991	}
		1992
		1993	our %MAP_PREFETCH;
		1994	our $MAP_PREFETCHER = undef;
		1995
		1996	sub find_async {
		1997	my ($path, $origin, $load) = @_;
		1998
		1999	$path = normalise $path, $origin && $origin->{path};
		2000
		2001	if (my $map = $cf::MAP{$path}) {
		2002	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2003	}
		2004
		2005	$MAP_PREFETCH{$path} |= $load;
		2006
		2007	$MAP_PREFETCHER ||= cf::async {
		2008	while (%MAP_PREFETCH) {
		2009	while (my ($k, $v) = each %MAP_PREFETCH) {
		2010	if (my $map = find $k) {
		2011	$map->load if $v;
		2012	}
		2013
		2014	delete $MAP_PREFETCH{$k};
857	}	2015	}
858	}	2016	}
		2017	undef $MAP_PREFETCHER;
		2018	};
		2019	$MAP_PREFETCHER->prio (6);
		2020
		2021	()
		2022	}
		2023
		2024	sub save {
		2025	my ($self) = @_;
		2026
		2027	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2028
		2029	$self->{last_save} = $cf::RUNTIME;
		2030
		2031	return unless $self->dirty;
		2032
		2033	my $save = $self->save_path; utf8::encode $save;
		2034	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2035
		2036	$self->{load_path} = $save;
		2037
		2038	return if $self->{deny_save};
		2039
		2040	local $self->{last_access} = $self->last_access;#d#
		2041
		2042	cf::async {
		2043	$_->contr->save for $self->players;
		2044	};
		2045
		2046	if ($uniq) {
		2047	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2048	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2049	} else {
		2050	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
859	},	2051	}
860	);	2052	}
861		2053
862	#############################################################################	2054	sub swap_out {
		2055	my ($self) = @_;
863		2056
864	=head2 CORE EXTENSIONS	2057	# save first because save cedes
		2058	$self->save;
865		2059
866	Functions and methods that extend core crossfire objects.	2060	my $lock = cf::lock_acquire "map_data:$self->{path}";
867		2061
868	=head3 cf::player	2062	return if $self->players;
		2063	return if $self->in_memory != cf::MAP_IN_MEMORY;
		2064	return if $self->{deny_save};
		2065
		2066	$self->clear;
		2067	$self->in_memory (cf::MAP_SWAPPED);
		2068	}
		2069
		2070	sub reset_at {
		2071	my ($self) = @_;
		2072
		2073	# TODO: safety, remove and allow resettable per-player maps
		2074	return 1e99 if $self->{deny_reset};
		2075
		2076	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2077	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2078
		2079	$time + $to
		2080	}
		2081
		2082	sub should_reset {
		2083	my ($self) = @_;
		2084
		2085	$self->reset_at <= $cf::RUNTIME
		2086	}
		2087
		2088	sub reset {
		2089	my ($self) = @_;
		2090
		2091	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2092
		2093	return if $self->players;
		2094
		2095	warn "resetting map ", $self->path;
		2096
		2097	$self->in_memory (cf::MAP_SWAPPED);
		2098
		2099	# need to save uniques path
		2100	unless ($self->{deny_save}) {
		2101	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2102
		2103	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2104	if $uniq;
		2105	}
		2106
		2107	delete $cf::MAP{$self->path};
		2108
		2109	$self->clear;
		2110
		2111	$_->clear_links_to ($self) for values %cf::MAP;
		2112
		2113	$self->unlink_save;
		2114	$self->destroy;
		2115	}
		2116
		2117	my $nuke_counter = "aaaa";
		2118
		2119	sub nuke {
		2120	my ($self) = @_;
		2121
		2122	{
		2123	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2124
		2125	delete $cf::MAP{$self->path};
		2126
		2127	$self->unlink_save;
		2128
		2129	bless $self, "cf::map";
		2130	delete $self->{deny_reset};
		2131	$self->{deny_save} = 1;
		2132	$self->reset_timeout (1);
		2133	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2134
		2135	$cf::MAP{$self->path} = $self;
		2136	}
		2137
		2138	$self->reset; # polite request, might not happen
		2139	}
		2140
		2141	=item $maps = cf::map::tmp_maps
		2142
		2143	Returns an arrayref with all map paths of currently instantiated and saved
		2144	maps. May block.
		2145
		2146	=cut
		2147
		2148	sub tmp_maps() {
		2149	[
		2150	map {
		2151	utf8::decode $_;
		2152	/\.map$/
		2153	? normalise $_
		2154	: ()
		2155	} @{ aio_readdir $TMPDIR or [] }
		2156	]
		2157	}
		2158
		2159	=item $maps = cf::map::random_maps
		2160
		2161	Returns an arrayref with all map paths of currently instantiated and saved
		2162	random maps. May block.
		2163
		2164	=cut
		2165
		2166	sub random_maps() {
		2167	[
		2168	map {
		2169	utf8::decode $_;
		2170	/\.map$/
		2171	? normalise "?random/$_"
		2172	: ()
		2173	} @{ aio_readdir $RANDOMDIR or [] }
		2174	]
		2175	}
		2176
		2177	=item cf::map::unique_maps
		2178
		2179	Returns an arrayref of paths of all shared maps that have
		2180	instantiated unique items. May block.
		2181
		2182	=cut
		2183
		2184	sub unique_maps() {
		2185	[
		2186	map {
		2187	utf8::decode $_;
		2188	/\.map$/
		2189	? normalise $_
		2190	: ()
		2191	} @{ aio_readdir $UNIQUEDIR or [] }
		2192	]
		2193	}
		2194
		2195	package cf;
		2196
		2197	=back
		2198
		2199	=head3 cf::object
		2200
		2201	=cut
		2202
		2203	package cf::object;
869		2204
870	=over 4	2205	=over 4
871		2206
872	=item cf::player::exists $login	2207	=item $ob->inv_recursive
873		2208
874	Returns true when the given account exists.	2209	Returns the inventory of the object _and_ their inventories, recursively.
875		2210
876	=cut	2211	=cut
877		2212
878	sub cf::player::exists($) {	2213	sub inv_recursive_;
879	cf::player::find $_[0]	2214	sub inv_recursive_ {
880	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2215	map { $_, inv_recursive_ $_->inv } @_
881	}	2216	}
882		2217
883	=item $player->ext_reply ($msgid, $msgtype, %msg)	2218	sub inv_recursive {
884		2219	inv_recursive_ inv $_[0]
885	Sends an ext reply to the player.
886
887	=cut
888
889	sub cf::player::ext_reply($$$%) {
890	my ($self, $id, %msg) = @_;
891
892	$msg{msgid} = $id;
893
894	$self->send ("ext " . to_json \%msg);
895	}	2220	}
		2221
		2222	=item $ref = $ob->ref
		2223
		2224	creates and returns a persistent reference to an objetc that can be stored as a string.
		2225
		2226	=item $ob = cf::object::deref ($refstring)
		2227
		2228	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2229	even if the object actually exists. May block.
		2230
		2231	=cut
		2232
		2233	sub deref {
		2234	my ($ref) = @_;
		2235
		2236	# temporary compatibility#TODO#remove
		2237	$ref =~ s{^<}{player/<};
		2238
		2239	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2240	my ($uuid, $name) = ($1, $2);
		2241	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2242	or return;
		2243	$pl->ob->uuid eq $uuid
		2244	or return;
		2245
		2246	$pl->ob
		2247	} else {
		2248	warn "$ref: cannot resolve object reference\n";
		2249	undef
		2250	}
		2251	}
		2252
		2253	package cf;
896		2254
897	=back	2255	=back
898		2256
899	=head3 cf::object::player	2257	=head3 cf::object::player
900		2258
…		…
916		2274
917	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2275	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
918		2276
919	if ($self->{record_replies}) {	2277	if ($self->{record_replies}) {
920	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2278	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2279
921	} else {	2280	} else {
		2281	my $pl = $self->contr;
		2282
		2283	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2284	my $dialog = $pl->{npc_dialog};
		2285	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2286
		2287	} else {
922	$msg = $npc->name . " says: $msg" if $npc;	2288	$msg = $npc->name . " says: $msg" if $npc;
923	$self->message ($msg, $flags);	2289	$self->message ($msg, $flags);
		2290	}
924	}	2291	}
		2292	}
		2293
		2294	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2295
		2296	=cut
		2297
		2298	sub cf::object::send_msg {
		2299	my $pl = shift->contr
		2300	or return;
		2301	$pl->send_msg (@_);
925	}	2302	}
926		2303
927	=item $player_object->may ("access")	2304	=item $player_object->may ("access")
928		2305
929	Returns wether the given player is authorized to access resource "access"	2306	Returns wether the given player is authorized to access resource "access"
…		…
938	(ref $cf::CFG{"may_$access"}	2315	(ref $cf::CFG{"may_$access"}
939	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2316	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
940	: $cf::CFG{"may_$access"})	2317	: $cf::CFG{"may_$access"})
941	}	2318	}
942		2319
		2320	=item $player_object->enter_link
		2321
		2322	Freezes the player and moves him/her to a special map (C<{link}>).
		2323
		2324	The player should be reasonably safe there for short amounts of time. You
		2325	I<MUST> call C<leave_link> as soon as possible, though.
		2326
		2327	Will never block.
		2328
		2329	=item $player_object->leave_link ($map, $x, $y)
		2330
		2331	Moves the player out of the special C<{link}> map onto the specified
		2332	map. If the map is not valid (or omitted), the player will be moved back
		2333	to the location he/she was before the call to C<enter_link>, or, if that
		2334	fails, to the emergency map position.
		2335
		2336	Might block.
		2337
		2338	=cut
		2339
		2340	sub link_map {
		2341	unless ($LINK_MAP) {
		2342	$LINK_MAP = cf::map::find "{link}"
		2343	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2344	$LINK_MAP->load;
		2345	}
		2346
		2347	$LINK_MAP
		2348	}
		2349
		2350	sub cf::object::player::enter_link {
		2351	my ($self) = @_;
		2352
		2353	$self->deactivate_recursive;
		2354
		2355	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2356
		2357	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2358	if $self->map && $self->map->{path} ne "{link}";
		2359
		2360	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2361	}
		2362
		2363	sub cf::object::player::leave_link {
		2364	my ($self, $map, $x, $y) = @_;
		2365
		2366	return unless $self->contr->active;
		2367
		2368	my $link_pos = delete $self->{_link_pos};
		2369
		2370	unless ($map) {
		2371	# restore original map position
		2372	($map, $x, $y) = @{ $link_pos || [] };
		2373	$map = cf::map::find $map;
		2374
		2375	unless ($map) {
		2376	($map, $x, $y) = @$EMERGENCY_POSITION;
		2377	$map = cf::map::find $map
		2378	or die "FATAL: cannot load emergency map\n";
		2379	}
		2380	}
		2381
		2382	($x, $y) = (-1, -1)
		2383	unless (defined $x) && (defined $y);
		2384
		2385	# use -1 or undef as default coordinates, not 0, 0
		2386	($x, $y) = ($map->enter_x, $map->enter_y)
		2387	if $x <=0 && $y <= 0;
		2388
		2389	$map->load;
		2390	$map->load_neighbours;
		2391
		2392	return unless $self->contr->active;
		2393	$self->activate_recursive;
		2394
		2395	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2396	$self->enter_map ($map, $x, $y);
		2397	}
		2398
		2399	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
		2400
		2401	Moves the player to the given map-path and coordinates by first freezing
		2402	her, loading and preparing them map, calling the provided $check callback
		2403	that has to return the map if sucecssful, and then unfreezes the player on
		2404	the new (success) or old (failed) map position. In either case, $done will
		2405	be called at the end of this process.
		2406
		2407	=cut
		2408
		2409	our $GOTOGEN;
		2410
		2411	sub cf::object::player::goto {
		2412	my ($self, $path, $x, $y, $check, $done) = @_;
		2413
		2414	# do generation counting so two concurrent goto's will be executed in-order
		2415	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2416
		2417	$self->enter_link;
		2418
		2419	(async {
		2420	my $map = eval {
		2421	my $map = cf::map::find $path;
		2422
		2423	if ($map) {
		2424	$map = $map->customise_for ($self);
		2425	$map = $check->($map) if $check && $map;
		2426	} else {
		2427	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2428	}
		2429
		2430	$map
		2431	};
		2432
		2433	if ($@) {
		2434	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2435	LOG llevError | logBacktrace, Carp::longmess $@;
		2436	}
		2437
		2438	if ($gen == $self->{_goto_generation}) {
		2439	delete $self->{_goto_generation};
		2440	$self->leave_link ($map, $x, $y);
		2441	}
		2442
		2443	$done->() if $done;
		2444	})->prio (1);
		2445	}
		2446
		2447	=item $player_object->enter_exit ($exit_object)
		2448
		2449	=cut
		2450
		2451	sub parse_random_map_params {
		2452	my ($spec) = @_;
		2453
		2454	my $rmp = { # defaults
		2455	xsize => (cf::rndm 15, 40),
		2456	ysize => (cf::rndm 15, 40),
		2457	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2458	#layout => string,
		2459	};
		2460
		2461	for (split /\n/, $spec) {
		2462	my ($k, $v) = split /\s+/, $_, 2;
		2463
		2464	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2465	}
		2466
		2467	$rmp
		2468	}
		2469
		2470	sub prepare_random_map {
		2471	my ($exit) = @_;
		2472
		2473	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2474
		2475	# all this does is basically replace the /! path by
		2476	# a new random map path (?random/...) with a seed
		2477	# that depends on the exit object
		2478
		2479	my $rmp = parse_random_map_params $exit->msg;
		2480
		2481	if ($exit->map) {
		2482	$rmp->{region} = $exit->region->name;
		2483	$rmp->{origin_map} = $exit->map->path;
		2484	$rmp->{origin_x} = $exit->x;
		2485	$rmp->{origin_y} = $exit->y;
		2486	}
		2487
		2488	$rmp->{random_seed} ||= $exit->random_seed;
		2489
		2490	my $data = cf::to_json $rmp;
		2491	my $md5 = Digest::MD5::md5_hex $data;
		2492	my $meta = "$RANDOMDIR/$md5.meta";
		2493
		2494	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2495	aio_write $fh, 0, (length $data), $data, 0;
		2496	undef $fh;
		2497	aio_rename "$meta~", $meta;
		2498
		2499	$exit->slaying ("?random/$md5");
		2500	$exit->msg (undef);
		2501	}
		2502	}
		2503
		2504	sub cf::object::player::enter_exit {
		2505	my ($self, $exit) = @_;
		2506
		2507	return unless $self->type == cf::PLAYER;
		2508
		2509	if ($exit->slaying eq "/!") {
		2510	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2511	# the problem is that $exit might not survive long enough
		2512	# so it needs to be done right now, right here
		2513	cf::sync_job { prepare_random_map $exit };
		2514	}
		2515
		2516	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2517	my $hp = $exit->stats->hp;
		2518	my $sp = $exit->stats->sp;
		2519
		2520	$self->enter_link;
		2521
		2522	# if exit is damned, update players death & WoR home-position
		2523	$self->contr->savebed ($slaying, $hp, $sp)
		2524	if $exit->flag (FLAG_DAMNED);
		2525
		2526	(async {
		2527	$self->deactivate_recursive; # just to be sure
		2528	unless (eval {
		2529	$self->goto ($slaying, $hp, $sp);
		2530
		2531	1;
		2532	}) {
		2533	$self->message ("Something went wrong deep within the crossfire server. "
		2534	. "I'll try to bring you back to the map you were before. "
		2535	. "Please report this to the dungeon master!",
		2536	cf::NDI_UNIQUE | cf::NDI_RED);
		2537
		2538	warn "ERROR in enter_exit: $@";
		2539	$self->leave_link;
		2540	}
		2541	})->prio (1);
		2542	}
		2543
943	=head3 cf::client	2544	=head3 cf::client
944		2545
945	=over 4	2546	=over 4
946		2547
947	=item $client->send_drawinfo ($text, $flags)	2548	=item $client->send_drawinfo ($text, $flags)
…		…
953		2554
954	sub cf::client::send_drawinfo {	2555	sub cf::client::send_drawinfo {
955	my ($self, $text, $flags) = @_;	2556	my ($self, $text, $flags) = @_;
956		2557
957	utf8::encode $text;	2558	utf8::encode $text;
958	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2559	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
959	}	2560	}
960		2561
		2562	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2563
		2564	Send a drawinfo or msg packet to the client, formatting the msg for the
		2565	client if neccessary. C<$type> should be a string identifying the type of
		2566	the message, with C<log> being the default. If C<$color> is negative, suppress
		2567	the message unless the client supports the msg packet.
		2568
		2569	=cut
		2570
		2571	our %CHANNEL = (
		2572	"c/identify" => {
		2573	id => "identify",
		2574	title => "Identify",
		2575	reply => undef,
		2576	tooltip => "Items recently identified",
		2577	},
		2578	"c/examine" => {
		2579	id => "examine",
		2580	title => "Examine",
		2581	reply => undef,
		2582	tooltip => "Signs and other items you examined",
		2583	},
		2584	);
		2585
		2586	sub cf::client::send_msg {
		2587	my ($self, $channel, $msg, $color, @extra) = @_;
		2588
		2589	$msg = $self->pl->expand_cfpod ($msg);
		2590
		2591	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2592
		2593	# check predefined channels, for the benefit of C
		2594	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2595
		2596	if (ref $channel) {
		2597	# send meta info to client, if not yet sent
		2598	unless (exists $self->{channel}{$channel->{id}}) {
		2599	$self->{channel}{$channel->{id}} = $channel;
		2600	$self->ext_msg (channel_info => $channel)
		2601	if $self->can_msg;
		2602	}
		2603
		2604	$channel = $channel->{id};
		2605	}
		2606
		2607	return unless @extra || length $msg;
		2608
		2609	if ($self->can_msg) {
		2610	# default colour, mask it out
		2611	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2612	if $color & cf::NDI_DEF;
		2613
		2614	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2615	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2616	} else {
		2617	if ($color >= 0) {
		2618	# replace some tags by gcfclient-compatible ones
		2619	for ($msg) {
		2620	1 while
		2621	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2622	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2623	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2624	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2625	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2626	}
		2627
		2628	$color &= cf::NDI_COLOR_MASK;
		2629
		2630	utf8::encode $msg;
		2631
		2632	if (0 && $msg =~ /\[/) {
		2633	# COMMAND/INFO
		2634	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2635	} else {
		2636	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2637	$self->send_packet ("drawinfo $color $msg")
		2638	}
		2639	}
		2640	}
		2641	}
		2642
		2643	=item $client->ext_msg ($type, @msg)
		2644
		2645	Sends an ext event to the client.
		2646
		2647	=cut
		2648
		2649	sub cf::client::ext_msg($$@) {
		2650	my ($self, $type, @msg) = @_;
		2651
		2652	if ($self->extcmd == 2) {
		2653	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2654	} elsif ($self->extcmd == 1) { # TODO: remove
		2655	push @msg, msgtype => "event_$type";
		2656	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2657	}
		2658	}
		2659
		2660	=item $client->ext_reply ($msgid, @msg)
		2661
		2662	Sends an ext reply to the client.
		2663
		2664	=cut
		2665
		2666	sub cf::client::ext_reply($$@) {
		2667	my ($self, $id, @msg) = @_;
		2668
		2669	if ($self->extcmd == 2) {
		2670	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2671	} elsif ($self->extcmd == 1) {
		2672	#TODO: version 1, remove
		2673	unshift @msg, msgtype => "reply", msgid => $id;
		2674	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2675	}
		2676	}
961		2677
962	=item $success = $client->query ($flags, "text", \&cb)	2678	=item $success = $client->query ($flags, "text", \&cb)
963		2679
964	Queues a query to the client, calling the given callback with	2680	Queues a query to the client, calling the given callback with
965	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2681	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
966	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2682	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
967		2683
968	Queries can fail, so check the return code. Or don't, as queries will become	2684	Queries can fail, so check the return code. Or don't, as queries will
969	reliable at some point in the future.	2685	become reliable at some point in the future.
970		2686
971	=cut	2687	=cut
972		2688
973	sub cf::client::query {	2689	sub cf::client::query {
974	my ($self, $flags, $text, $cb) = @_;	2690	my ($self, $flags, $text, $cb) = @_;
…		…
982	utf8::encode $text;	2698	utf8::encode $text;
983	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2699	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
984		2700
985	$self->send_packet ($self->{query_queue}[0][0])	2701	$self->send_packet ($self->{query_queue}[0][0])
986	if @{ $self->{query_queue} } == 1;	2702	if @{ $self->{query_queue} } == 1;
		2703
		2704	1
987	}	2705	}
988		2706
989	cf::client->attach (	2707	cf::client->attach (
		2708	on_connect => sub {
		2709	my ($ns) = @_;
		2710
		2711	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2712	},
990	on_reply => sub {	2713	on_reply => sub {
991	my ($ns, $msg) = @_;	2714	my ($ns, $msg) = @_;
992		2715
993	# this weird shuffling is so that direct followup queries	2716	# this weird shuffling is so that direct followup queries
994	# get handled first	2717	# get handled first
995	my $queue = delete $ns->{query_queue};	2718	my $queue = delete $ns->{query_queue}
		2719	or return; # be conservative, not sure how that can happen, but we saw a crash here
996		2720
997	(shift @$queue)->[1]->($msg);	2721	(shift @$queue)->[1]->($msg);
		2722	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
998		2723
999	push @{ $ns->{query_queue} }, @$queue;	2724	push @{ $ns->{query_queue} }, @$queue;
1000		2725
1001	if (@{ $ns->{query_queue} } == @$queue) {	2726	if (@{ $ns->{query_queue} } == @$queue) {
1002	if (@$queue) {	2727	if (@$queue) {
…		…
1004	} else {	2729	} else {
1005	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2730	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1006	}	2731	}
1007	}	2732	}
1008	},	2733	},
		2734	on_exticmd => sub {
		2735	my ($ns, $buf) = @_;
		2736
		2737	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2738
		2739	if (ref $msg) {
		2740	my ($type, $reply, @payload) =
		2741	"ARRAY" eq ref $msg
		2742	? @$msg
		2743	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2744
		2745	my @reply;
		2746
		2747	if (my $cb = $EXTICMD{$type}) {
		2748	@reply = $cb->($ns, @payload);
		2749	}
		2750
		2751	$ns->ext_reply ($reply, @reply)
		2752	if $reply;
		2753
		2754	} else {
		2755	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2756	}
		2757
		2758	cf::override;
		2759	},
1009	);	2760	);
1010		2761
1011	=item $client->coro (\&cb)	2762	=item $client->async (\&cb)
1012		2763
1013	Create a new coroutine, running the specified callback. The coroutine will	2764	Create a new coroutine, running the specified callback. The coroutine will
1014	be automatically cancelled when the client gets destroyed (e.g. on logout,	2765	be automatically cancelled when the client gets destroyed (e.g. on logout,
1015	or loss of connection).	2766	or loss of connection).
1016		2767
1017	=cut	2768	=cut
1018		2769
1019	sub cf::client::coro {	2770	sub cf::client::async {
1020	my ($self, $cb) = @_;	2771	my ($self, $cb) = @_;
1021		2772
1022	my $coro; $coro = async {	2773	my $coro = &Coro::async ($cb);
1023	eval {
1024	$cb->();
1025	};
1026	warn $@ if $@;
1027	};
1028		2774
1029	$coro->on_destroy (sub {	2775	$coro->on_destroy (sub {
1030	delete $self->{_coro}{$coro+0};	2776	delete $self->{_coro}{$coro+0};
1031	});	2777	});
1032		2778
…		…
1059	our $safe = new Safe "safe";	2805	our $safe = new Safe "safe";
1060	our $safe_hole = new Safe::Hole;	2806	our $safe_hole = new Safe::Hole;
1061		2807
1062	$SIG{FPE} = 'IGNORE';	2808	$SIG{FPE} = 'IGNORE';
1063		2809
1064	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2810	$safe->permit_only (Opcode::opset qw(
		2811	:base_core :base_mem :base_orig :base_math
		2812	grepstart grepwhile mapstart mapwhile
		2813	sort time
		2814	));
1065		2815
1066	# here we export the classes and methods available to script code	2816	# here we export the classes and methods available to script code
1067		2817
1068	=pod	2818	=pod
1069		2819
1070	The following fucntions and emthods are available within a safe environment:	2820	The following functions and methods are available within a safe environment:
1071		2821
1072	cf::object contr pay_amount pay_player map	2822	cf::object
		2823	contr pay_amount pay_player map x y force_find force_add
		2824	insert remove name archname title slaying race decrease_ob_nr
		2825
1073	cf::object::player player	2826	cf::object::player
1074	cf::player peaceful	2827	player
1075	cf::map trigger	2828
		2829	cf::player
		2830	peaceful
		2831
		2832	cf::map
		2833	trigger
1076		2834
1077	=cut	2835	=cut
1078		2836
1079	for (	2837	for (
1080	["cf::object" => qw(contr pay_amount pay_player map)],	2838	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2839	insert remove inv name archname title slaying race
		2840	decrease_ob_nr)],
1081	["cf::object::player" => qw(player)],	2841	["cf::object::player" => qw(player)],
1082	["cf::player" => qw(peaceful)],	2842	["cf::player" => qw(peaceful)],
1083	["cf::map" => qw(trigger)],	2843	["cf::map" => qw(trigger)],
1084	) {	2844	) {
1085	no strict 'refs';	2845	no strict 'refs';
…		…
1156	=back	2916	=back
1157		2917
1158	=cut	2918	=cut
1159		2919
1160	#############################################################################	2920	#############################################################################
		2921	# the server's init and main functions
1161		2922
1162	=head2 EXTENSION DATABASE SUPPORT	2923	sub load_facedata($) {
		2924	my ($path) = @_;
1163		2925
1164	Crossfire maintains a very simple database for extension use. It can	2926	# HACK to clear player env face cache, we need some signal framework
1165	currently store anything that can be serialised using Storable, which	2927	# for this (global event?)
1166	excludes objects.	2928	%ext::player_env::MUSIC_FACE_CACHE = ();
1167		2929
1168	The parameter C<$family> should best start with the name of the extension	2930	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1169	using it, it should be unique.
1170		2931
1171	=over 4	2932	warn "loading facedata from $path\n";
1172		2933
1173	=item $hashref = cf::db_get $family	2934	my $facedata;
		2935	0 < aio_load $path, $facedata
		2936	or die "$path: $!";
1174		2937
1175	Return a hashref for use by the extension C<$family>, which can be	2938	$facedata = Coro::Storable::thaw $facedata;
1176	modified. After modifications, you have to call C<cf::db_dirty> or
1177	C<cf::db_sync>.
1178		2939
1179	=item $value = cf::db_get $family => $key	2940	$facedata->{version} == 2
		2941	or cf::cleanup "$path: version mismatch, cannot proceed.";
1180		2942
1181	Returns a single value from the database	2943	# patch in the exptable
1182		2944	$facedata->{resource}{"res/exp_table"} = {
1183	=item cf::db_put $family => $hashref	2945	type => FT_RSRC,
1184		2946	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1185	Stores the given family hashref into the database. Updates are delayed, if
1186	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1187
1188	=item cf::db_put $family => $key => $value
1189
1190	Stores the given C<$value> in the family hash. Updates are delayed, if you
1191	want the data to be synced to disk immediately, use C<cf::db_sync>.
1192
1193	=item cf::db_dirty
1194
1195	Marks the database as dirty, to be updated at a later time.
1196
1197	=item cf::db_sync
1198
1199	Immediately write the database to disk I<if it is dirty>.
1200
1201	=cut
1202
1203	our $DB;
1204
1205	{
1206	my $path = cf::localdir . "/database.pst";
1207
1208	sub db_load() {
1209	warn "loading database $path\n";#d# remove later
1210	$DB = stat $path ? Storable::retrieve $path : { };
1211	}
1212
1213	my $pid;
1214
1215	sub db_save() {
1216	warn "saving database $path\n";#d# remove later
1217	waitpid $pid, 0 if $pid;
1218	if (0 == ($pid = fork)) {
1219	$DB->{_meta}{version} = 1;
1220	Storable::nstore $DB, "$path~";
1221	rename "$path~", $path;
1222	cf::_exit 0 if defined $pid;
1223	}
1224	}
1225
1226	my $dirty;
1227
1228	sub db_sync() {
1229	db_save if $dirty;
1230	undef $dirty;
1231	}
1232
1233	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1234	db_sync;
1235	});	2947	};
		2948	cf::cede_to_tick;
1236		2949
1237	sub db_dirty() {
1238	$dirty = 1;
1239	$idle->start;
1240	}	2950	{
		2951	my $faces = $facedata->{faceinfo};
1241		2952
1242	sub db_get($;$) {	2953	while (my ($face, $info) = each %$faces) {
1243	@_ >= 2	2954	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1244	? $DB->{$_[0]}{$_[1]}	2955	cf::face::set_visibility $idx, $info->{visibility};
1245	: ($DB->{$_[0]} ||= { })	2956	cf::face::set_magicmap $idx, $info->{magicmap};
1246	}	2957	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		2958	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1247		2959
1248	sub db_put($$;$) {	2960	cf::cede_to_tick;
1249	if (@_ >= 3) {
1250	$DB->{$_[0]}{$_[1]} = $_[2];
1251	} else {
1252	$DB->{$_[0]} = $_[1];
1253	}
1254	db_dirty;
1255	}
1256
1257	cf::global->attach (
1258	prio => 10000,
1259	on_cleanup => sub {
1260	db_sync;
1261	},	2961	}
1262	);
1263	}
1264		2962
1265	#############################################################################	2963	while (my ($face, $info) = each %$faces) {
1266	# the server's main()	2964	next unless $info->{smooth};
		2965	my $idx = cf::face::find $face
		2966	or next;
		2967	if (my $smooth = cf::face::find $info->{smooth}) {
		2968	cf::face::set_smooth $idx, $smooth;
		2969	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2970	} else {
		2971	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2972	}
1267		2973
1268	sub cfg_load {	2974	cf::cede_to_tick;
		2975	}
		2976	}
		2977
		2978	{
		2979	my $anims = $facedata->{animinfo};
		2980
		2981	while (my ($anim, $info) = each %$anims) {
		2982	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2983	cf::cede_to_tick;
		2984	}
		2985
		2986	cf::anim::invalidate_all; # d'oh
		2987	}
		2988
		2989	{
		2990	# TODO: for gcfclient pleasure, we should give resources
		2991	# that gcfclient doesn't grok a >10000 face index.
		2992	my $res = $facedata->{resource};
		2993
		2994	my $soundconf = delete $res->{"res/sound.conf"};
		2995
		2996	while (my ($name, $info) = each %$res) {
		2997	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2998	my $data;
		2999
		3000	if ($info->{type} & 1) {
		3001	# prepend meta info
		3002
		3003	my $meta = $enc->encode ({
		3004	name => $name,
		3005	%{ $info->{meta} || {} },
		3006	});
		3007
		3008	$data = pack "(w/a*)*", $meta, $info->{data};
		3009	} else {
		3010	$data = $info->{data};
		3011	}
		3012
		3013	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3014	cf::face::set_type $idx, $info->{type};
		3015
		3016	cf::cede_to_tick;
		3017	}
		3018
		3019	if ($soundconf) {
		3020	$soundconf = $enc->decode (delete $soundconf->{data});
		3021
		3022	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3023	my $sound = $soundconf->{compat}[$_]
		3024	or next;
		3025
		3026	my $face = cf::face::find "sound/$sound->[1]";
		3027	cf::sound::set $sound->[0] => $face;
		3028	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3029	}
		3030
		3031	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3032	my $face = cf::face::find "sound/$v";
		3033	cf::sound::set $k => $face;
		3034	}
		3035	}
		3036	}
		3037
		3038	1
		3039	}
		3040
		3041	register_exticmd fx_want => sub {
		3042	my ($ns, $want) = @_;
		3043
		3044	while (my ($k, $v) = each %$want) {
		3045	$ns->fx_want ($k, $v);
		3046	}
		3047	};
		3048
		3049	sub reload_regions {
		3050	# HACK to clear player env face cache, we need some signal framework
		3051	# for this (global event?)
		3052	%ext::player_env::MUSIC_FACE_CACHE = ();
		3053
		3054	load_resource_file "$MAPDIR/regions"
		3055	or die "unable to load regions file\n";
		3056
		3057	for (cf::region::list) {
		3058	$_->{match} = qr/$_->{match}/
		3059	if exists $_->{match};
		3060	}
		3061	}
		3062
		3063	sub reload_facedata {
		3064	load_facedata "$DATADIR/facedata"
		3065	or die "unable to load facedata\n";
		3066	}
		3067
		3068	sub reload_archetypes {
		3069	load_resource_file "$DATADIR/archetypes"
		3070	or die "unable to load archetypes\n";
		3071	#d# NEED to laod twice to resolve forward references
		3072	# this really needs to be done in an extra post-pass
		3073	# (which needs to be synchronous, so solve it differently)
		3074	load_resource_file "$DATADIR/archetypes"
		3075	or die "unable to load archetypes\n";
		3076	}
		3077
		3078	sub reload_treasures {
		3079	load_resource_file "$DATADIR/treasures"
		3080	or die "unable to load treasurelists\n";
		3081	}
		3082
		3083	sub reload_resources {
		3084	warn "reloading resource files...\n";
		3085
		3086	reload_regions;
		3087	reload_facedata;
		3088	#reload_archetypes;#d#
		3089	reload_archetypes;
		3090	reload_treasures;
		3091
		3092	warn "finished reloading resource files\n";
		3093	}
		3094
		3095	sub init {
		3096	reload_resources;
		3097	}
		3098
		3099	sub reload_config {
1269	open my $fh, "<:utf8", cf::confdir . "/config"	3100	open my $fh, "<:utf8", "$CONFDIR/config"
1270	or return;	3101	or return;
1271		3102
1272	local $/;	3103	local $/;
1273	*CFG = YAML::Syck::Load <$fh>;	3104	*CFG = YAML::Syck::Load <$fh>;
		3105
		3106	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3107
		3108	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3109	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3110
		3111	if (exists $CFG{mlockall}) {
		3112	eval {
		3113	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3114	and die "WARNING: m(un)lockall failed: $!\n";
		3115	};
		3116	warn $@ if $@;
		3117	}
1274	}	3118	}
1275		3119
1276	sub main {	3120	sub main {
1277	cfg_load;	3121	# we must not ever block the main coroutine
1278	db_load;	3122	local $Coro::idle = sub {
		3123	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3124	(async {
		3125	Event::one_event;
		3126	})->prio (Coro::PRIO_MAX);
		3127	};
		3128
		3129	reload_config;
		3130	db_init;
1279	load_extensions;	3131	load_extensions;
		3132
		3133	$TICK_WATCHER->start;
1280	Event::loop;	3134	Event::loop;
1281	}	3135	}
1282		3136
1283	#############################################################################	3137	#############################################################################
1284	# initialisation	3138	# initialisation and cleanup
1285		3139
1286	sub perl_reload() {	3140	# install some emergency cleanup handlers
		3141	BEGIN {
		3142	for my $signal (qw(INT HUP TERM)) {
		3143	Event->signal (
		3144	reentrant => 0,
		3145	data => WF_AUTOCANCEL,
		3146	signal => $signal,
		3147	prio => 0,
		3148	cb => sub {
		3149	cf::cleanup "SIG$signal";
		3150	},
		3151	);
		3152	}
		3153	}
		3154
		3155	sub write_runtime {
		3156	my $runtime = "$LOCALDIR/runtime";
		3157
		3158	# first touch the runtime file to show we are still running:
		3159	# the fsync below can take a very very long time.
		3160
		3161	IO::AIO::aio_utime $runtime, undef, undef;
		3162
		3163	my $guard = cf::lock_acquire "write_runtime";
		3164
		3165	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3166	or return;
		3167
		3168	my $value = $cf::RUNTIME + 90 + 10;
		3169	# 10 is the runtime save interval, for a monotonic clock
		3170	# 60 allows for the watchdog to kill the server.
		3171
		3172	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3173	and return;
		3174
		3175	# always fsync - this file is important
		3176	aio_fsync $fh
		3177	and return;
		3178
		3179	# touch it again to show we are up-to-date
		3180	aio_utime $fh, undef, undef;
		3181
		3182	close $fh
		3183	or return;
		3184
		3185	aio_rename "$runtime~", $runtime
		3186	and return;
		3187
		3188	warn "runtime file written.\n";
		3189
		3190	1
		3191	}
		3192
		3193	sub emergency_save() {
		3194	my $freeze_guard = cf::freeze_mainloop;
		3195
		3196	warn "enter emergency perl save\n";
		3197
		3198	cf::sync_job {
		3199	# use a peculiar iteration method to avoid tripping on perl
		3200	# refcount bugs in for. also avoids problems with players
		3201	# and maps saved/destroyed asynchronously.
		3202	warn "begin emergency player save\n";
		3203	for my $login (keys %cf::PLAYER) {
		3204	my $pl = $cf::PLAYER{$login} or next;
		3205	$pl->valid or next;
		3206	$pl->save;
		3207	}
		3208	warn "end emergency player save\n";
		3209
		3210	warn "begin emergency map save\n";
		3211	for my $path (keys %cf::MAP) {
		3212	my $map = $cf::MAP{$path} or next;
		3213	$map->valid or next;
		3214	$map->save;
		3215	}
		3216	warn "end emergency map save\n";
		3217
		3218	warn "begin emergency database checkpoint\n";
		3219	BDB::db_env_txn_checkpoint $DB_ENV;
		3220	warn "end emergency database checkpoint\n";
		3221	};
		3222
		3223	warn "leave emergency perl save\n";
		3224	}
		3225
		3226	sub post_cleanup {
		3227	my ($make_core) = @_;
		3228
		3229	warn Carp::longmess "post_cleanup backtrace"
		3230	if $make_core;
		3231	}
		3232
		3233	sub do_reload_perl() {
1287	# can/must only be called in main	3234	# can/must only be called in main
1288	if ($Coro::current != $Coro::main) {	3235	if ($Coro::current != $Coro::main) {
1289	warn "can only reload from main coroutine\n";	3236	warn "can only reload from main coroutine";
1290	return;	3237	return;
1291	}	3238	}
1292		3239
1293	warn "reloading...";	3240	warn "reloading...";
1294		3241
1295	local $FREEZE = 1;	3242	warn "entering sync_job";
		3243
		3244	cf::sync_job {
		3245	cf::write_runtime; # external watchdog should not bark
1296	cf::emergency_save;	3246	cf::emergency_save;
		3247	cf::write_runtime; # external watchdog should not bark
1297		3248
1298	eval {	3249	warn "syncing database to disk";
		3250	BDB::db_env_txn_checkpoint $DB_ENV;
		3251
1299	# if anything goes wrong in here, we should simply crash as we already saved	3252	# if anything goes wrong in here, we should simply crash as we already saved
1300		3253
1301	# cancel all watchers	3254	warn "cancelling all WF_AUTOCANCEL watchers";
1302	for (Event::all_watchers) {	3255	for (Event::all_watchers) {
1303	$_->cancel if $_->data & WF_AUTOCANCEL;	3256	$_->cancel if $_->data & WF_AUTOCANCEL;
1304	}	3257	}
1305		3258
		3259	warn "flushing outstanding aio requests";
		3260	for (;;) {
		3261	BDB::flush;
		3262	IO::AIO::flush;
		3263	Coro::cede;
		3264	last unless IO::AIO::nreqs || BDB::nreqs;
		3265	warn "iterate...";
		3266	}
		3267
		3268	++$RELOAD;
		3269
1306	# cancel all extension coros	3270	warn "cancelling all extension coros";
1307	$_->cancel for values %EXT_CORO;	3271	$_->cancel for values %EXT_CORO;
1308	%EXT_CORO = ();	3272	%EXT_CORO = ();
1309		3273
1310	# unload all extensions	3274	warn "removing commands";
1311	for (@exts) {	3275	%COMMAND = ();
		3276
		3277	warn "removing ext/exti commands";
		3278	%EXTCMD = ();
		3279	%EXTICMD = ();
		3280
		3281	warn "unloading/nuking all extensions";
		3282	for my $pkg (@EXTS) {
1312	warn "unloading <$_>";	3283	warn "... unloading $pkg";
1313	unload_extension $_;	3284
		3285	if (my $cb = $pkg->can ("unload")) {
		3286	eval {
		3287	$cb->($pkg);
		3288	1
		3289	} or warn "$pkg unloaded, but with errors: $@";
1314	}	3290	}
1315		3291
		3292	warn "... nuking $pkg";
		3293	Symbol::delete_package $pkg;
		3294	}
		3295
1316	# unload all modules loaded from $LIBDIR	3296	warn "unloading all perl modules loaded from $LIBDIR";
1317	while (my ($k, $v) = each %INC) {	3297	while (my ($k, $v) = each %INC) {
1318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3298	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1319		3299
1320	warn "removing <$k>";	3300	warn "... unloading $k";
1321	delete $INC{$k};	3301	delete $INC{$k};
1322		3302
1323	$k =~ s/\.pm$//;	3303	$k =~ s/\.pm$//;
1324	$k =~ s/\//::/g;	3304	$k =~ s/\//::/g;
1325		3305
…		…
1328	}	3308	}
1329		3309
1330	Symbol::delete_package $k;	3310	Symbol::delete_package $k;
1331	}	3311	}
1332		3312
1333	# sync database to disk
1334	cf::db_sync;
1335	IO::AIO::flush;
1336
1337	# get rid of safe::, as good as possible	3313	warn "getting rid of safe::, as good as possible";
1338	Symbol::delete_package "safe::$_"	3314	Symbol::delete_package "safe::$_"
1339	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3315	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1340		3316
1341	# remove register_script_function callbacks
1342	# TODO
1343
1344	# unload cf.pm "a bit"	3317	warn "unloading cf.pm \"a bit\"";
1345	delete $INC{"cf.pm"};	3318	delete $INC{"cf.pm"};
		3319	delete $INC{"cf/pod.pm"};
1346		3320
1347	# don't, removes xs symbols, too,	3321	# don't, removes xs symbols, too,
1348	# and global variables created in xs	3322	# and global variables created in xs
1349	#Symbol::delete_package __PACKAGE__;	3323	#Symbol::delete_package __PACKAGE__;
1350		3324
1351	# reload cf.pm	3325	warn "unload completed, starting to reload now";
		3326
1352	warn "reloading cf.pm";	3327	warn "reloading cf.pm";
1353	require cf;	3328	require cf;
1354	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3329	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1355		3330
1356	# load config and database again	3331	warn "loading config and database again";
1357	cf::cfg_load;	3332	cf::reload_config;
1358	cf::db_load;
1359		3333
1360	# load extensions
1361	warn "load extensions";	3334	warn "loading extensions";
1362	cf::load_extensions;	3335	cf::load_extensions;
1363		3336
1364	# reattach attachments to objects	3337	warn "reattaching attachments to objects/players";
1365	warn "reattach";	3338	_global_reattach; # objects, sockets
1366	_global_reattach;	3339	warn "reattaching attachments to maps";
1367	};	3340	reattach $_ for values %MAP;
		3341	warn "reattaching attachments to players";
		3342	reattach $_ for values %PLAYER;
1368		3343
1369	if ($@) {	3344	warn "leaving sync_job";
		3345
		3346	1
		3347	} or do {
1370	warn $@;	3348	warn $@;
1371	warn "error while reloading, exiting.";	3349	warn "error while reloading, exiting.";
1372	exit 1;	3350	exit 1;
1373	}	3351	};
1374		3352
1375	warn "reloaded successfully";	3353	warn "reloaded";
1376	};	3354	};
1377		3355
1378	register "<global>", __PACKAGE__;	3356	our $RELOAD_WATCHER; # used only during reload
1379		3357
		3358	sub reload_perl() {
		3359	# doing reload synchronously and two reloads happen back-to-back,
		3360	# coro crashes during coro_state_free->destroy here.
		3361
		3362	$RELOAD_WATCHER ||= Event->timer (
		3363	reentrant => 0,
		3364	after => 0,
		3365	data => WF_AUTOCANCEL,
		3366	cb => sub {
		3367	do_reload_perl;
		3368	undef $RELOAD_WATCHER;
		3369	},
		3370	);
		3371	}
		3372
1380	register_command "perl-reload" => sub {	3373	register_command "reload" => sub {
1381	my ($who, $arg) = @_;	3374	my ($who, $arg) = @_;
1382		3375
1383	if ($who->flag (FLAG_WIZ)) {	3376	if ($who->flag (FLAG_WIZ)) {
1384	$who->message ("start of reload.");
1385	perl_reload;
1386	$who->message ("end of reload.");	3377	$who->message ("reloading server.");
		3378	async { reload_perl };
1387	}	3379	}
1388	};	3380	};
1389		3381
1390	unshift @INC, $LIBDIR;	3382	unshift @INC, $LIBDIR;
1391		3383
		3384	my $bug_warning = 0;
		3385
		3386	our @WAIT_FOR_TICK;
		3387	our @WAIT_FOR_TICK_BEGIN;
		3388
		3389	sub wait_for_tick {
		3390	return unless $TICK_WATCHER->is_active;
		3391	return if $Coro::current == $Coro::main;
		3392
		3393	my $signal = new Coro::Signal;
		3394	push @WAIT_FOR_TICK, $signal;
		3395	$signal->wait;
		3396	}
		3397
		3398	sub wait_for_tick_begin {
		3399	return unless $TICK_WATCHER->is_active;
		3400	return if $Coro::current == $Coro::main;
		3401
		3402	my $signal = new Coro::Signal;
		3403	push @WAIT_FOR_TICK_BEGIN, $signal;
		3404	$signal->wait;
		3405	}
		3406
		3407	my $min = 1e6;#d#
		3408	my $avg = 10;
1392	$TICK_WATCHER = Event->timer (	3409	$TICK_WATCHER = Event->timer (
1393	reentrant => 0,	3410	reentrant => 0,
		3411	parked => 1,
1394	prio => 0,	3412	prio => 0,
1395	at => $NEXT_TICK || $TICK,	3413	at => $NEXT_TICK || $TICK,
1396	data => WF_AUTOCANCEL,	3414	data => WF_AUTOCANCEL,
1397	cb => sub {	3415	cb => sub {
1398	unless ($FREEZE) {	3416	if ($Coro::current != $Coro::main) {
		3417	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3418	unless ++$bug_warning > 10;
		3419	return;
		3420	}
		3421
		3422	$NOW = $tick_start = Event::time;
		3423
1399	cf::server_tick; # one server iteration	3424	cf::server_tick; # one server iteration
1400	$RUNTIME += $TICK;	3425
		3426	0 && sync_job {#d#
		3427	for(1..10) {
		3428	my $t = Event::time;
		3429	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3430	or die;
		3431
		3432	$map->width (50);
		3433	$map->height (50);
		3434	$map->alloc;
		3435	$map->_load_objects ("/tmp/x.map", 1); #TODO: does not work
		3436	my $t = Event::time - $t;
		3437
		3438	#next unless $t < 0.0013;#d#
		3439	if ($t < $min) {
		3440	$min = $t;
		3441	}
		3442	$avg = $avg * 0.99 + $t * 0.01;
		3443	}
		3444	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3445	exit 0;
		3446	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
1401	}	3447	};
1402		3448
		3449	$RUNTIME += $TICK;
1403	$NEXT_TICK += $TICK;	3450	$NEXT_TICK += $TICK;
1404		3451
		3452	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3453	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3454	Coro::async_pool {
		3455	write_runtime
		3456	or warn "ERROR: unable to write runtime file: $!";
		3457	};
		3458	}
		3459
		3460	# my $AFTER = Event::time;
		3461	# warn $AFTER - $NOW;#d#
		3462
		3463	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3464	$sig->send;
		3465	}
		3466	while (my $sig = shift @WAIT_FOR_TICK) {
		3467	$sig->send;
		3468	}
		3469
		3470	$NOW = Event::time;
		3471
1405	# if we are delayed by four ticks or more, skip them all	3472	# if we are delayed by four ticks or more, skip them all
1406	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3473	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1407		3474
1408	$TICK_WATCHER->at ($NEXT_TICK);	3475	$TICK_WATCHER->at ($NEXT_TICK);
1409	$TICK_WATCHER->start;	3476	$TICK_WATCHER->start;
		3477
		3478	$LOAD = ($NOW - $tick_start) / $TICK;
		3479	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3480
		3481	_post_tick;
		3482
		3483
1410	},	3484	},
1411	);	3485	);
1412		3486
		3487	{
		3488	BDB::max_poll_time $TICK * 0.1;
		3489	$BDB_POLL_WATCHER = Event->io (
		3490	reentrant => 0,
		3491	fd => BDB::poll_fileno,
		3492	poll => 'r',
		3493	prio => 0,
		3494	data => WF_AUTOCANCEL,
		3495	cb => \&BDB::poll_cb,
		3496	);
		3497	BDB::min_parallel 8;
		3498
		3499	BDB::set_sync_prepare {
		3500	my $status;
		3501	my $current = $Coro::current;
		3502	(
		3503	sub {
		3504	$status = $!;
		3505	$current->ready; undef $current;
		3506	},
		3507	sub {
		3508	Coro::schedule while defined $current;
		3509	$! = $status;
		3510	},
		3511	)
		3512	};
		3513
		3514	unless ($DB_ENV) {
		3515	$DB_ENV = BDB::db_env_create;
		3516
		3517	cf::sync_job {
		3518	eval {
		3519	BDB::db_env_open
		3520	$DB_ENV,
		3521	$BDBDIR,
		3522	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3523	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3524	0666;
		3525
		3526	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3527
		3528	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3529	$DB_ENV->set_lk_detect;
		3530	};
		3531
		3532	cf::cleanup "db_env_open(db): $@" if $@;
		3533	};
		3534	}
		3535	}
		3536
		3537	{
		3538	IO::AIO::min_parallel 8;
		3539
		3540	undef $Coro::AIO::WATCHER;
1413	IO::AIO::max_poll_time $TICK * 0.2;	3541	IO::AIO::max_poll_time $TICK * 0.1;
1414		3542	$AIO_POLL_WATCHER = Event->io (
1415	Event->io (fd => IO::AIO::poll_fileno,	3543	reentrant => 0,
1416	poll => 'r',
1417	prio => 5,
1418	data => WF_AUTOCANCEL,	3544	data => WF_AUTOCANCEL,
		3545	fd => IO::AIO::poll_fileno,
		3546	poll => 'r',
		3547	prio => 6,
1419	cb => \&IO::AIO::poll_cb);	3548	cb => \&IO::AIO::poll_cb,
		3549	);
		3550	}
1420		3551
1421	# we must not ever block the main coroutine	3552	my $_log_backtrace;
1422	$Coro::idle = sub {	3553
1423	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3554	sub _log_backtrace {
1424	warn "FATAL: Coro::idle was called, major BUG\n";	3555	my ($msg, @addr) = @_;
1425	(Coro::unblock_sub {	3556
1426	Event::one_event;	3557	$msg =~ s/\n//;
1427	})->();	3558
1428	};	3559	# limit the # of concurrent backtraces
		3560	if ($_log_backtrace < 2) {
		3561	++$_log_backtrace;
		3562	async {
		3563	my @bt = fork_call {
		3564	@addr = map { sprintf "%x", $_ } @addr;
		3565	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3566	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3567	or die "addr2line: $!";
		3568
		3569	my @funcs;
		3570	my @res = <$fh>;
		3571	chomp for @res;
		3572	while (@res) {
		3573	my ($func, $line) = splice @res, 0, 2, ();
		3574	push @funcs, "[$func] $line";
		3575	}
		3576
		3577	@funcs
		3578	};
		3579
		3580	LOG llevInfo, "[ABT] $msg\n";
		3581	LOG llevInfo, "[ABT] $_\n" for @bt;
		3582	--$_log_backtrace;
		3583	};
		3584	} else {
		3585	LOG llevInfo, "[ABT] $msg\n";
		3586	LOG llevInfo, "[ABT] [suppressed]\n";
		3587	}
		3588	}
		3589
		3590	# load additional modules
		3591	use cf::pod;
		3592
		3593	END { cf::emergency_save }
1429		3594
1430	1	3595	1
1431		3596

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