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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.106 by root, Sun Dec 31 17:29:22 2006 UTC vs.
Revision 1.406 by root, Mon Dec 17 08:27:44 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Socket;
		9	use EV 1.86;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.3;	15	use Coro 4.32 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::EV;
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::BDB;
		24	use Coro::Storable;
		25	use Coro::Util ();
19		26
		27	use JSON::XS 2.01 ();
		28	use BDB ();
		29	use Data::Dumper;
		30	use Digest::MD5;
20	use Fcntl;	31	use Fcntl;
21	use IO::AIO 2.31 ();
22	use YAML::Syck ();	32	use YAML::Syck ();
		33	use IO::AIO 2.51 ();
23	use Time::HiRes;	34	use Time::HiRes;
		35	use Compress::LZF;
		36	use Digest::MD5 ();
24		37
25	use Event; $Event::Eval = 1; # no idea why this is required, but it is	38	# configure various modules to our taste
		39	#
		40	$Storable::canonical = 1; # reduce rsync transfers
		41	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		42	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
26		43
27	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
28	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
29		46
30	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
31		48
32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
33		50
34	our %COMMAND = ();	51	our %COMMAND = ();
35	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
		53
		54	our @EXTS = (); # list of extension package names
36	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
		57	our %EXT_CORO = (); # coroutines bound to extensions
		58	our %EXT_MAP = (); # pluggable maps
37		59
		60	our $RELOAD; # number of reloads so far
38	our @EVENT;	61	our @EVENT;
39	our $LIBDIR = datadir . "/ext";
40		62
41	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74	our %RESOURCE;
		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 $USE_FSYNC = 1; # use fsync to write maps - default off
		82
		83	our $BDB_POLL_WATCHER;
		84	our $BDB_DEADLOCK_WATCHER;
		85	our $BDB_CHECKPOINT_WATCHER;
		86	our $BDB_TRICKLE_WATCHER;
		87	our $DB_ENV;
45		88
46	our %CFG;	89	our %CFG;
47		90
48	our $UPTIME; $UPTIME ||= time;	91	our $UPTIME; $UPTIME ||= time;
49	our $RUNTIME;	92	our $RUNTIME;
		93	our $NOW;
50		94
51	our %MAP; # all maps	95	our (%PLAYER, %PLAYER_LOADING); # all users
52	our $LINK_MAP; # the special {link} map	96	our (%MAP, %MAP_LOADING ); # all maps
53	our $FREEZE;	97	our $LINK_MAP; # the special {link} map, which is always available
		98
		99	# used to convert map paths into valid unix filenames by replacing / by ∕
		100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
54		105
55	binmode STDOUT;	106	binmode STDOUT;
56	binmode STDERR;	107	binmode STDERR;
57		108
58	# read virtual server time, if available	109	# read virtual server time, if available
59	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
60	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
61	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
62	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
63	}	114	}
64		115
65	mkdir cf::localdir;	116	mkdir $_
66	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
67	mkdir cf::localdir . "/" . cf::tmpdir;
68	mkdir cf::localdir . "/" . cf::uniquedir;
69		118
70	our %EXT_CORO;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
71		122
72	#############################################################################	123	#############################################################################
73		124
74	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
75		126
…		…
82	=item $cf::RUNTIME	133	=item $cf::RUNTIME
83		134
84	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
85	every server tick.	136	every server tick.
86		137
87	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
88		141
89	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
90	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
91		146
92	=item $cf::NOW	147	=item $cf::NOW
93		148
94	The time of the last (current) server tick.	149	The time of the last (current) server tick.
95		150
96	=item $cf::TICK	151	=item $cf::TICK
97		152
98	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
99		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
		164
100	=item %cf::CFG	165	=item %cf::CFG
101		166
102	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
103	from wherever your confdir points to.	168	from wherever your confdir points to.
		169
		170	=item cf::wait_for_tick, cf::wait_for_tick_begin
		171
		172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		173	returns directly I<after> the tick processing (and consequently, can only wake one process
		174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
104		181
105	=back	182	=back
106		183
107	=cut	184	=cut
108		185
109	BEGIN {	186	BEGIN {
110	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
111	my $msg = join "", @_;	188	my $msg = join "", @_;
112	utf8::encode $msg;
113		189
114	$msg .= "\n"	190	$msg .= "\n"
115	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
116		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		194
117	LOG llevError, "cfperl: $msg";	195	LOG llevError, $msg;
118	};	196	};
119	}	197	}
120		198
121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
122	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
123	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
124	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
125	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
126	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
127		206
128	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
129	# within the Safe compartment.	208	# within the Safe compartment.
130	for my $pkg (qw(	209	for my $pkg (qw(
131	cf::global cf::attachable	210	cf::global cf::attachable
…		…
136	)) {	215	)) {
137	no strict 'refs';	216	no strict 'refs';
138	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	217	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
139	}	218	}
140		219
141	$Event::DIED = sub {	220	$EV::DIED = sub {
142	warn "error in event callback: @_";	221	warn "error in event callback: @_";
143	};	222	};
144		223
145	my %ext_pkg;	224	#############################################################################
146	my @exts;
147	my @hook;
148		225
149	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
150		227
151	=over 4	228	=over 4
152		229
153	=cut	230	=item dumpval $ref
154		231
155	use JSON::Syck (); # TODO# replace by JSON::PC once working	232	=cut
156		233
		234	sub dumpval {
		235	eval {
		236	local $SIG{__DIE__};
		237	my $d;
		238	if (1) {
		239	$d = new Data::Dumper([$_[0]], ["*var"]);
		240	$d->Terse(1);
		241	$d->Indent(2);
		242	$d->Quotekeys(0);
		243	$d->Useqq(1);
		244	#$d->Bless(...);
		245	$d->Seen($_[1]) if @_ > 1;
		246	$d = $d->Dump();
		247	}
		248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		249	$d
		250	} || "[unable to dump $_[0]: '$@']";
		251	}
		252
157	=item $ref = cf::from_json $json	253	=item $ref = cf::decode_json $json
158		254
159	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
160		256
161	=cut
162
163	sub from_json($) {
164	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
165	JSON::Syck::Load $_[0]
166	}
167
168	=item $json = cf::to_json $ref	257	=item $json = cf::encode_json $ref
169		258
170	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
171		260
172	=cut	261	=cut
173		262
174	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
176	JSON::Syck::Dump $_[0]	265	sub encode_json($) { $json_coder->encode ($_[0]) }
		266	sub decode_json($) { $json_coder->decode ($_[0]) }
		267
		268	=item cf::lock_wait $string
		269
		270	Wait until the given lock is available. See cf::lock_acquire.
		271
		272	=item my $lock = cf::lock_acquire $string
		273
		274	Wait until the given lock is available and then acquires it and returns
		275	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		276	for example when the coroutine gets canceled), the lock is automatically
		277	returned.
		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
		282	Lock names should begin with a unique identifier (for example, cf::map::find
		283	uses map_find and cf::map::load uses map_load).
		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
		289	=cut
		290
		291	our %LOCK;
		292	our %LOCKER;#d#
		293
		294	sub lock_wait($) {
		295	my ($key) = @_;
		296
		297	if ($LOCKER{$key} == $Coro::current) {#d#
		298	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		299	return;#d#
		300	}#d#
		301
		302	# wait for lock, if any
		303	while ($LOCK{$key}) {
		304	push @{ $LOCK{$key} }, $Coro::current;
		305	Coro::schedule;
		306	}
177	}	307	}
		308
		309	sub lock_acquire($) {
		310	my ($key) = @_;
		311
		312	# wait, to be sure we are not locked
		313	lock_wait $key;
		314
		315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
		317
		318	Coro::guard {
		319	delete $LOCKER{$key};#d#
		320	# wake up all waiters, to be on the safe side
		321	$_->ready for @{ delete $LOCK{$key} };
		322	}
		323	}
		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
		331	sub freeze_mainloop {
		332	return unless $TICK_WATCHER->is_active;
		333
		334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
		337	$TICK_WATCHER->stop;
		338	$guard
		339	}
		340
		341	=item cf::periodic $interval, $cb
		342
		343	Like EV::periodic, but randomly selects a starting point so that the actions
		344	get spread over timer.
		345
		346	=cut
		347
		348	sub periodic($$) {
		349	my ($interval, $cb) = @_;
		350
		351	my $start = rand List::Util::min 180, $interval;
		352
		353	EV::periodic $start, $interval, 0, $cb
		354	}
		355
		356	=item cf::get_slot $time[, $priority[, $name]]
		357
		358	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		359	This call blocks and returns only when you have at least C<$time> seconds
		360	of cpu time till the next tick. The slot is only valid till the next cede.
		361
		362	The optional C<$name> can be used to identify the job to run. It might be
		363	used for statistical purposes and should identify the same time-class.
		364
		365	Useful for short background jobs.
		366
		367	=cut
		368
		369	our @SLOT_QUEUE;
		370	our $SLOT_QUEUE;
		371
		372	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		373	$SLOT_QUEUE = Coro::async {
		374	$Coro::current->desc ("timeslot manager");
		375
		376	my $signal = new Coro::Signal;
		377
		378	while () {
		379	next_job:
		380	my $avail = cf::till_tick;
		381	if ($avail > 0.01) {
		382	for (0 .. $#SLOT_QUEUE) {
		383	if ($SLOT_QUEUE[$_][0] < $avail) {
		384	my $job = splice @SLOT_QUEUE, $_, 1, ();
		385	$job->[2]->send;
		386	Coro::cede;
		387	goto next_job;
		388	}
		389	}
		390	}
		391
		392	if (@SLOT_QUEUE) {
		393	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		394	push @cf::WAIT_FOR_TICK, $signal;
		395	$signal->wait;
		396	} else {
		397	Coro::schedule;
		398	}
		399	}
		400	};
		401
		402	sub get_slot($;$$) {
		403	my ($time, $pri, $name) = @_;
		404
		405	$time = $TICK * .6 if $time > $TICK * .6;
		406	my $sig = new Coro::Signal;
		407
		408	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		409	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		410	$SLOT_QUEUE->ready;
		411	$sig->wait;
		412	}
		413
		414	=item cf::async { BLOCK }
		415
		416	Currently the same as Coro::async_pool, meaning you cannot use
		417	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		418	thing you are allowed to do is call C<prio> on it.
		419
		420	=cut
		421
		422	BEGIN { *async = \&Coro::async_pool }
178		423
179	=item cf::sync_job { BLOCK }	424	=item cf::sync_job { BLOCK }
180		425
181	The design of crossfire+ requires that the main coro ($Coro::main) is	426	The design of Deliantra requires that the main coroutine ($Coro::main)
182	always able to handle events or runnable, as crossfire+ is only partly	427	is always able to handle events or runnable, as Deliantra is only
183	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	428	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		429	acceptable.
184		430
185	If it must be done, put the blocking parts into C<sync_job>. This will run	431	If it must be done, put the blocking parts into C<sync_job>. This will run
186	the given BLOCK in another coroutine while waiting for the result. The	432	the given BLOCK in another coroutine while waiting for the result. The
187	server will be frozen during this time, so the block should either finish	433	server will be frozen during this time, so the block should either finish
188	fast or be very important.	434	fast or be very important.
…		…
190	=cut	436	=cut
191		437
192	sub sync_job(&) {	438	sub sync_job(&) {
193	my ($job) = @_;	439	my ($job) = @_;
194		440
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 == $Coro::main) {	441	if ($Coro::current == $Coro::main) {
		442	my $time = EV::time;
		443
		444	# this is the main coro, too bad, we have to block
		445	# till the operation succeeds, freezing the server :/
		446
		447	LOG llevError, Carp::longmess "sync job";#d#
		448
		449	# TODO: use suspend/resume instead
		450	# (but this is cancel-safe)
		451	my $freeze_guard = freeze_mainloop;
		452
		453	my $busy = 1;
		454	my @res;
		455
		456	(async {
		457	$Coro::current->desc ("sync job coro");
		458	@res = eval { $job->() };
		459	warn $@ if $@;
		460	undef $busy;
208	$coro->prio (Coro::PRIO_MAX);	461	})->prio (Coro::PRIO_MAX);
		462
209	while ($busy) {	463	while ($busy) {
		464	if (Coro::nready) {
210	Coro::cede_notself;	465	Coro::cede_notself;
211	Event::one_event unless Coro::nready;	466	} else {
		467	EV::loop EV::LOOP_ONESHOT;
212	}	468	}
		469	}
		470
		471	$time = EV::time - $time;
		472
		473	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		474	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		475
		476	$tick_start += $time; # do not account sync jobs to server load
		477
		478	wantarray ? @res : $res[0]
213	} else {	479	} else {
214	$coro->join;	480	# we are in another coroutine, how wonderful, everything just works
		481
		482	$job->()
215	}	483	}
216
217	wantarray ? @res : $res[0]
218	}	484	}
219		485
220	=item $coro = cf::coro { BLOCK }	486	=item $coro = cf::async_ext { BLOCK }
221		487
222	Creates and returns a new coro. This coro is automcatially being canceled	488	Like async, but this coro is automatically being canceled when the
223	when the extension calling this is being unloaded.	489	extension calling this is being unloaded.
224		490
225	=cut	491	=cut
226		492
227	sub coro(&) {	493	sub async_ext(&) {
228	my $cb = shift;	494	my $cb = shift;
229		495
230	my $coro; $coro = async {	496	my $coro = &Coro::async ($cb);
231	eval {
232	$cb->();
233	};
234	warn $@ if $@;
235	};
236		497
237	$coro->on_destroy (sub {	498	$coro->on_destroy (sub {
238	delete $EXT_CORO{$coro+0};	499	delete $EXT_CORO{$coro+0};
239	});	500	});
240	$EXT_CORO{$coro+0} = $coro;	501	$EXT_CORO{$coro+0} = $coro;
241		502
242	$coro	503	$coro
243	}	504	}
244		505
		506	=item fork_call { }, $args
		507
		508	Executes the given code block with the given arguments in a seperate
		509	process, returning the results. Everything must be serialisable with
		510	Coro::Storable. May, of course, block. Note that the executed sub may
		511	never block itself or use any form of event handling.
		512
		513	=cut
		514
		515	sub fork_call(&@) {
		516	my ($cb, @args) = @_;
		517
		518	# we seemingly have to make a local copy of the whole thing,
		519	# otherwise perl prematurely frees the stuff :/
		520	# TODO: investigate and fix (likely this will be rather laborious)
		521
		522	my @res = Coro::Util::fork_eval {
		523	reset_signals;
		524	&$cb
		525	}, @args;
		526
		527	wantarray ? @res : $res[-1]
		528	}
		529
		530	=item $value = cf::db_get $family => $key
		531
		532	Returns a single value from the environment database.
		533
		534	=item cf::db_put $family => $key => $value
		535
		536	Stores the given C<$value> in the family. It can currently store binary
		537	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		538
		539	=item $db = cf::db_table "name"
		540
		541	Create and/or open a new database table. The string must not be "db" and must be unique
		542	within each server.
		543
		544	=cut
		545
		546	sub db_table($) {
		547	my ($name) = @_;
		548	my $db = BDB::db_create $DB_ENV;
		549
		550	eval {
		551	$db->set_flags (BDB::CHKSUM);
		552
		553	utf8::encode $name;
		554	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		555	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		556	cf::cleanup "db_open(db): $!" if $!;
		557	};
		558	cf::cleanup "db_open(db): $@" if $@;
		559
		560	$db
		561	}
		562
		563	our $DB;
		564
		565	sub db_init {
		566	cf::sync_job {
		567	$DB ||= db_table "db";
		568	};
		569	}
		570
		571	sub db_get($$) {
		572	my $key = "$_[0]/$_[1]";
		573
		574	cf::sync_job {
		575	BDB::db_get $DB, undef, $key, my $data;
		576
		577	$! ? ()
		578	: $data
		579	}
		580	}
		581
		582	sub db_put($$$) {
		583	BDB::dbreq_pri 4;
		584	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		585	}
		586
		587	=item cf::cache $id => [$paths...], $processversion => $process
		588
		589	Generic caching function that returns the value of the resource $id,
		590	caching and regenerating as required.
		591
		592	This function can block.
		593
		594	=cut
		595
		596	sub cache {
		597	my ($id, $src, $processversion, $process) = @_;
		598
		599	my $meta =
		600	join "\x00",
		601	$processversion,
		602	map {
		603	aio_stat $_
		604	and Carp::croak "$_: $!";
		605
		606	($_, (stat _)[7,9])
		607	} @$src;
		608
		609	my $dbmeta = db_get cache => "$id/meta";
		610	if ($dbmeta ne $meta) {
		611	# changed, we may need to process
		612
		613	my @data;
		614	my $md5;
		615
		616	for (0 .. $#$src) {
		617	0 <= aio_load $src->[$_], $data[$_]
		618	or Carp::croak "$src->[$_]: $!";
		619	}
		620
		621	# if processing is expensive, check
		622	# checksum first
		623	if (1) {
		624	$md5 =
		625	join "\x00",
		626	$processversion,
		627	map {
		628	cf::cede_to_tick;
		629	($src->[$_], Digest::MD5::md5_hex $data[$_])
		630	} 0.. $#$src;
		631
		632
		633	my $dbmd5 = db_get cache => "$id/md5";
		634	if ($dbmd5 eq $md5) {
		635	db_put cache => "$id/meta", $meta;
		636
		637	return db_get cache => "$id/data";
		638	}
		639	}
		640
		641	my $t1 = Time::HiRes::time;
		642	my $data = $process->(\@data);
		643	my $t2 = Time::HiRes::time;
		644
		645	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		646
		647	db_put cache => "$id/data", $data;
		648	db_put cache => "$id/md5" , $md5;
		649	db_put cache => "$id/meta", $meta;
		650
		651	return $data;
		652	}
		653
		654	db_get cache => "$id/data"
		655	}
		656
		657	=item cf::datalog type => key => value, ...
		658
		659	Log a datalog packet of the given type with the given key-value pairs.
		660
		661	=cut
		662
		663	sub datalog($@) {
		664	my ($type, %kv) = @_;
		665	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		666	}
		667
245	=back	668	=back
246		669
247	=cut	670	=cut
248		671
249	#############################################################################	672	#############################################################################
…		…
254	attach callbacks/event handlers (a collection of which is called an "attachment")	677	attach callbacks/event handlers (a collection of which is called an "attachment")
255	to it. All such attachable objects support the following methods.	678	to it. All such attachable objects support the following methods.
256		679
257	In the following description, CLASS can be any of C<global>, C<object>	680	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	681	C<player>, C<client> or C<map> (i.e. the attachable objects in
259	crossfire+).	682	Deliantra).
260		683
261	=over 4	684	=over 4
262		685
263	=item $attachable->attach ($attachment, key => $value...)	686	=item $attachable->attach ($attachment, key => $value...)
264		687
…		…
378	our @CB_TYPE = (); # registry for type (cf-object class) based events	801	our @CB_TYPE = (); # registry for type (cf-object class) based events
379	our @CB_MAP = ();	802	our @CB_MAP = ();
380		803
381	my %attachment;	804	my %attachment;
382		805
		806	sub cf::attachable::thawer_merge {
		807	# simply override everything except _meta
		808	local $_[0]{_meta};
		809	%{$_[0]} = %{$_[1]};
		810	}
		811
383	sub _attach_cb($$$$) {	812	sub _attach_cb($$$$) {
384	my ($registry, $event, $prio, $cb) = @_;	813	my ($registry, $event, $prio, $cb) = @_;
385		814
386	use sort 'stable';	815	use sort 'stable';
387		816
…		…
421	$registry = $CB_TYPE[$object_type] ||= [];	850	$registry = $CB_TYPE[$object_type] ||= [];
422		851
423	} elsif ($type eq "subtype") {	852	} elsif ($type eq "subtype") {
424	defined $object_type or Carp::croak "subtype specified without type";	853	defined $object_type or Carp::croak "subtype specified without type";
425	my $object_subtype = shift @arg;	854	my $object_subtype = shift @arg;
426	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	855	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
427		856
428	} elsif ($type eq "package") {	857	} elsif ($type eq "package") {
429	my $pkg = shift @arg;	858	my $pkg = shift @arg;
430		859
431	while (my ($name, $id) = each %cb_id) {	860	while (my ($name, $id) = each %cb_id) {
…		…
460	_attach $registry, $klass, @attach;	889	_attach $registry, $klass, @attach;
461	}	890	}
462		891
463	$obj->{$name} = \%arg;	892	$obj->{$name} = \%arg;
464	} else {	893	} else {
465	warn "object uses attachment '$name' that is not available, postponing.\n";	894	warn "object uses attachment '$name' which is not available, postponing.\n";
466	}	895	}
467		896
468	$obj->{_attachment}{$name} = undef;	897	$obj->{_attachment}{$name} = undef;
469	}	898	}
470		899
…		…
472	if (ref $_[0]) {	901	if (ref $_[0]) {
473	_object_attach @_;	902	_object_attach @_;
474	} else {	903	} else {
475	_attach shift->_attach_registry, @_;	904	_attach shift->_attach_registry, @_;
476	}	905	}
		906	_recalc_want;
477	};	907	};
478		908
479	# all those should be optimised	909	# all those should be optimised
480	sub cf::attachable::detach {	910	sub cf::attachable::detach {
481	my ($obj, $name) = @_;	911	my ($obj, $name) = @_;
…		…
484	delete $obj->{_attachment}{$name};	914	delete $obj->{_attachment}{$name};
485	reattach ($obj);	915	reattach ($obj);
486	} else {	916	} else {
487	Carp::croak "cannot, currently, detach class attachments";	917	Carp::croak "cannot, currently, detach class attachments";
488	}	918	}
		919	_recalc_want;
489	};	920	};
490		921
491	sub cf::attachable::attached {	922	sub cf::attachable::attached {
492	my ($obj, $name) = @_;	923	my ($obj, $name) = @_;
493		924
…		…
508	";	939	";
509	die if $@;	940	die if $@;
510	}	941	}
511		942
512	our $override;	943	our $override;
513	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	944	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
514		945
515	sub override {	946	sub override {
516	$override = 1;	947	$override = 1;
517	@invoke_results = ();	948	@INVOKE_RESULTS = (@_);
518	}	949	}
519		950
520	sub do_invoke {	951	sub do_invoke {
521	my $event = shift;	952	my $event = shift;
522	my $callbacks = shift;	953	my $callbacks = shift;
523		954
524	@invoke_results = ();	955	@INVOKE_RESULTS = ();
525		956
526	local $override;	957	local $override;
527		958
528	for (@$callbacks) {	959	for (@$callbacks) {
529	eval { &{$_->[1]} };	960	eval { &{$_->[1]} };
…		…
538	}	969	}
539		970
540	0	971	0
541	}	972	}
542		973
543	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	974	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
544		975
545	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	976	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
546		977
547	Generate an object-specific event with the given arguments.	978	Generate an object-specific event with the given arguments.
548		979
549	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	980	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	981	removed in future versions), and there is no public API to access override
551	results (if you must, access C<@cf::invoke_results> directly).	982	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
552		983
553	=back	984	=back
554		985
555	=cut	986	=cut
556		987
557	#############################################################################	988	#############################################################################
558	# object support	989	# object support
		990
		991	sub _object_equal($$);
		992	sub _object_equal($$) {
		993	my ($a, $b) = @_;
		994
		995	return 0 unless (ref $a) eq (ref $b);
		996
		997	if ("HASH" eq ref $a) {
		998	my @ka = keys %$a;
		999	my @kb = keys %$b;
		1000
		1001	return 0 if @ka != @kb;
		1002
		1003	for (0 .. $#ka) {
		1004	return 0 unless $ka[$_] eq $kb[$_];
		1005	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1006	}
		1007
		1008	} elsif ("ARRAY" eq ref $a) {
		1009
		1010	return 0 if @$a != @$b;
		1011
		1012	for (0 .. $#$a) {
		1013	return 0 unless _object_equal $a->[$_], $b->[$_];
		1014	}
		1015
		1016	} elsif ($a ne $b) {
		1017	return 0;
		1018	}
		1019
		1020	1
		1021	}
		1022
		1023	our $SLOW_MERGES;#d#
		1024	sub _can_merge {
		1025	my ($ob1, $ob2) = @_;
		1026
		1027	++$SLOW_MERGES;#d#
		1028
		1029	# we do the slow way here
		1030	return _object_equal $ob1, $ob2
		1031	}
559		1032
560	sub reattach {	1033	sub reattach {
561	# basically do the same as instantiate, without calling instantiate	1034	# basically do the same as instantiate, without calling instantiate
562	my ($obj) = @_;	1035	my ($obj) = @_;
		1036
		1037	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
563		1038
564	my $registry = $obj->registry;	1039	my $registry = $obj->registry;
565		1040
566	@$registry = ();	1041	@$registry = ();
567		1042
…		…
582	cf::attachable->attach (	1057	cf::attachable->attach (
583	prio => -1000000,	1058	prio => -1000000,
584	on_instantiate => sub {	1059	on_instantiate => sub {
585	my ($obj, $data) = @_;	1060	my ($obj, $data) = @_;
586		1061
587	$data = from_json $data;	1062	$data = decode_json $data;
588		1063
589	for (@$data) {	1064	for (@$data) {
590	my ($name, $args) = @$_;	1065	my ($name, $args) = @$_;
591		1066
592	$obj->attach ($name, %{$args || {} });	1067	$obj->attach ($name, %{$args || {} });
…		…
608	sub object_freezer_save {	1083	sub object_freezer_save {
609	my ($filename, $rdata, $objs) = @_;	1084	my ($filename, $rdata, $objs) = @_;
610		1085
611	sync_job {	1086	sync_job {
612	if (length $$rdata) {	1087	if (length $$rdata) {
		1088	utf8::decode (my $decname = $filename);
613	warn sprintf "saving %s (%d,%d)\n",	1089	warn sprintf "saving %s (%d,%d)\n",
614	$filename, length $$rdata, scalar @$objs;	1090	$decname, length $$rdata, scalar @$objs;
615		1091
616	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1092	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
617	chmod SAVE_MODE, $fh;	1093	chmod SAVE_MODE, $fh;
618	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1094	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
619	aio_fsync $fh;	1095	aio_fsync $fh if $cf::USE_FSYNC;
620	close $fh;	1096	close $fh;
621		1097
622	if (@$objs) {	1098	if (@$objs) {
623	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1099	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
624	chmod SAVE_MODE, $fh;	1100	chmod SAVE_MODE, $fh;
625	my $data = Storable::nfreeze { version => 1, objs => $objs };	1101	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
626	aio_write $fh, 0, (length $data), $data, 0;	1102	aio_write $fh, 0, (length $data), $data, 0;
627	aio_fsync $fh;	1103	aio_fsync $fh if $cf::USE_FSYNC;
628	close $fh;	1104	close $fh;
629	aio_rename "$filename.pst~", "$filename.pst";	1105	aio_rename "$filename.pst~", "$filename.pst";
630	}	1106	}
631	} else {	1107	} else {
632	aio_unlink "$filename.pst";	1108	aio_unlink "$filename.pst";
…		…
638	}	1114	}
639	} else {	1115	} else {
640	aio_unlink $filename;	1116	aio_unlink $filename;
641	aio_unlink "$filename.pst";	1117	aio_unlink "$filename.pst";
642	}	1118	}
643	}	1119	};
644	}	1120	}
645		1121
646	sub object_freezer_as_string {	1122	sub object_freezer_as_string {
647	my ($rdata, $objs) = @_;	1123	my ($rdata, $objs) = @_;
648		1124
…		…
660	or return;	1136	or return;
661		1137
662	unless (aio_stat "$filename.pst") {	1138	unless (aio_stat "$filename.pst") {
663	(aio_load "$filename.pst", $av) >= 0	1139	(aio_load "$filename.pst", $av) >= 0
664	or return;	1140	or return;
		1141
665	$av = eval { (Storable::thaw <$av>)->{objs} };	1142	my $st = eval { Coro::Storable::thaw $av };
		1143	$av = $st->{objs};
666	}	1144	}
667		1145
		1146	utf8::decode (my $decname = $filename);
		1147	warn sprintf "loading %s (%d,%d)\n",
		1148	$decname, length $data, scalar @{$av || []};
		1149
668	return ($data, $av);	1150	($data, $av)
669	}	1151	}
		1152
		1153	=head2 COMMAND CALLBACKS
		1154
		1155	=over 4
		1156
		1157	=cut
670		1158
671	#############################################################################	1159	#############################################################################
672	# command handling &c	1160	# command handling &c
673		1161
674	=item cf::register_command $name => \&callback($ob,$args);	1162	=item cf::register_command $name => \&callback($ob,$args);
…		…
687	push @{ $COMMAND{$name} }, [$caller, $cb];	1175	push @{ $COMMAND{$name} }, [$caller, $cb];
688	}	1176	}
689		1177
690	=item cf::register_extcmd $name => \&callback($pl,$packet);	1178	=item cf::register_extcmd $name => \&callback($pl,$packet);
691		1179
692	Register a callbackf ro execution when the client sends an extcmd packet.	1180	Register a callback for execution when the client sends an (synchronous)
		1181	extcmd packet. Ext commands will be processed in the order they are
		1182	received by the server, like other user commands. The first argument is
		1183	the logged-in player. Ext commands can only be processed after a player
		1184	has logged in successfully.
693		1185
694	If the callback returns something, it is sent back as if reply was being	1186	If the callback returns something, it is sent back as if reply was being
695	called.	1187	called.
696		1188
		1189	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1190
		1191	Register a callback for execution when the client sends an (asynchronous)
		1192	exticmd packet. Exti commands are processed by the server as soon as they
		1193	are received, i.e. out of order w.r.t. other commands. The first argument
		1194	is a client socket. Exti commands can be received anytime, even before
		1195	log-in.
		1196
		1197	If the callback returns something, it is sent back as if reply was being
		1198	called.
		1199
697	=cut	1200	=cut
698		1201
699	sub register_extcmd {	1202	sub register_extcmd {
700	my ($name, $cb) = @_;	1203	my ($name, $cb) = @_;
701		1204
702	my $caller = caller;
703	#warn "registering extcmd '$name' to '$caller'";
704
705	$EXTCMD{$name} = [$cb, $caller];	1205	$EXTCMD{$name} = $cb;
		1206	}
		1207
		1208	sub register_exticmd {
		1209	my ($name, $cb) = @_;
		1210
		1211	$EXTICMD{$name} = $cb;
706	}	1212	}
707		1213
708	cf::player->attach (	1214	cf::player->attach (
709	on_command => sub {	1215	on_command => sub {
710	my ($pl, $name, $params) = @_;	1216	my ($pl, $name, $params) = @_;
…		…
719	cf::override;	1225	cf::override;
720	},	1226	},
721	on_extcmd => sub {	1227	on_extcmd => sub {
722	my ($pl, $buf) = @_;	1228	my ($pl, $buf) = @_;
723		1229
724	my $msg = eval { from_json $buf };	1230	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
725		1231
726	if (ref $msg) {	1232	if (ref $msg) {
		1233	my ($type, $reply, @payload) =
		1234	"ARRAY" eq ref $msg
		1235	? @$msg
		1236	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1237
		1238	my @reply;
		1239
727	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1240	if (my $cb = $EXTCMD{$type}) {
728	if (my %reply = $cb->[0]->($pl, $msg)) {	1241	@reply = $cb->($pl, @payload);
729	$pl->ext_reply ($msg->{msgid}, %reply);
730	}
731	}	1242	}
		1243
		1244	$pl->ext_reply ($reply, @reply)
		1245	if $reply;
		1246
732	} else {	1247	} else {
733	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1248	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
734	}	1249	}
735		1250
736	cf::override;	1251	cf::override;
737	},	1252	},
738	);	1253	);
739		1254
		1255	sub load_extensions {
		1256	cf::sync_job {
		1257	my %todo;
		1258
		1259	for my $path (<$LIBDIR/*.ext>) {
		1260	next unless -r $path;
		1261
		1262	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1263	my $base = $1;
		1264	my $pkg = $1;
		1265	$pkg =~ s/[^[:word:]]/_/g;
		1266	$pkg = "ext::$pkg";
		1267
		1268	open my $fh, "<:utf8", $path
		1269	or die "$path: $!";
		1270
		1271	my $source = do { local $/; <$fh> };
		1272
		1273	my %ext = (
		1274	path => $path,
		1275	base => $base,
		1276	pkg => $pkg,
		1277	);
		1278
		1279	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1280	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1281
		1282	$ext{source} =
		1283	"package $pkg; use strict; use utf8;\n"
		1284	. "#line 1 \"$path\"\n{\n"
		1285	. $source
		1286	. "\n};\n1";
		1287
		1288	$todo{$base} = \%ext;
		1289	}
		1290
		1291	my %done;
		1292	while (%todo) {
		1293	my $progress;
		1294
		1295	while (my ($k, $v) = each %todo) {
		1296	for (split /,\s*/, $v->{meta}{depends}) {
		1297	goto skip
		1298	unless exists $done{$_};
		1299	}
		1300
		1301	warn "... loading '$k' into '$v->{pkg}'\n";
		1302
		1303	unless (eval $v->{source}) {
		1304	my $msg = $@ ? "$v->{path}: $@\n"
		1305	: "$v->{base}: extension inactive.\n";
		1306
		1307	if (exists $v->{meta}{mandatory}) {
		1308	warn $msg;
		1309	warn "mandatory extension failed to load, exiting.\n";
		1310	exit 1;
		1311	}
		1312
		1313	warn $msg;
		1314	}
		1315
		1316	$done{$k} = delete $todo{$k};
		1317	push @EXTS, $v->{pkg};
		1318	$progress = 1;
		1319	}
		1320
		1321	skip:
		1322	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1323	unless $progress;
		1324	}
		1325	};
		1326	}
		1327
		1328	#############################################################################
		1329
		1330	=back
		1331
		1332	=head2 CORE EXTENSIONS
		1333
		1334	Functions and methods that extend core crossfire objects.
		1335
		1336	=cut
		1337
		1338	package cf::player;
		1339
		1340	use Coro::AIO;
		1341
		1342	=head3 cf::player
		1343
		1344	=over 4
		1345
		1346	=item cf::player::num_playing
		1347
		1348	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1349
		1350	=cut
		1351
		1352	sub num_playing {
		1353	scalar grep
		1354	$_->ob->map
		1355	&& !$_->hidden
		1356	&& !$_->ob->flag (cf::FLAG_WIZ),
		1357	cf::player::list
		1358	}
		1359
		1360	=item cf::player::find $login
		1361
		1362	Returns the given player object, loading it if necessary (might block).
		1363
		1364	=cut
		1365
		1366	sub playerdir($) {
		1367	"$PLAYERDIR/"
		1368	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1369	}
		1370
		1371	sub path($) {
		1372	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1373
		1374	(playerdir $login) . "/playerdata"
		1375	}
		1376
		1377	sub find_active($) {
		1378	$cf::PLAYER{$_[0]}
		1379	and $cf::PLAYER{$_[0]}->active
		1380	and $cf::PLAYER{$_[0]}
		1381	}
		1382
		1383	sub exists($) {
		1384	my ($login) = @_;
		1385
		1386	$cf::PLAYER{$login}
		1387	or cf::sync_job { !aio_stat path $login }
		1388	}
		1389
		1390	sub find($) {
		1391	return $cf::PLAYER{$_[0]} || do {
		1392	my $login = $_[0];
		1393
		1394	my $guard = cf::lock_acquire "user_find:$login";
		1395
		1396	$cf::PLAYER{$_[0]} || do {
		1397	# rename old playerfiles to new ones
		1398	#TODO: remove when no longer required
		1399	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1400	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1401	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1402	aio_unlink +(playerdir $login) . "/$login.pl";
		1403
		1404	my $f = new_from_file cf::object::thawer path $login
		1405	or return;
		1406
		1407	my $pl = cf::player::load_pl $f
		1408	or return;
		1409	local $cf::PLAYER_LOADING{$login} = $pl;
		1410	$f->resolve_delayed_derefs;
		1411	$cf::PLAYER{$login} = $pl
		1412	}
		1413	}
		1414	}
		1415
		1416	sub save($) {
		1417	my ($pl) = @_;
		1418
		1419	return if $pl->{deny_save};
		1420
		1421	my $path = path $pl;
		1422	my $guard = cf::lock_acquire "user_save:$path";
		1423
		1424	return if $pl->{deny_save};
		1425
		1426	aio_mkdir playerdir $pl, 0770;
		1427	$pl->{last_save} = $cf::RUNTIME;
		1428
		1429	$pl->save_pl ($path);
		1430	cf::cede_to_tick;
		1431	}
		1432
		1433	sub new($) {
		1434	my ($login) = @_;
		1435
		1436	my $self = create;
		1437
		1438	$self->ob->name ($login);
		1439	$self->{deny_save} = 1;
		1440
		1441	$cf::PLAYER{$login} = $self;
		1442
		1443	$self
		1444	}
		1445
		1446	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1447
		1448	=cut
		1449
		1450	sub send_msg {
		1451	my $ns = shift->ns
		1452	or return;
		1453	$ns->send_msg (@_);
		1454	}
		1455
		1456	=item $pl->quit_character
		1457
		1458	Nukes the player without looking back. If logged in, the connection will
		1459	be destroyed. May block for a long time.
		1460
		1461	=cut
		1462
		1463	sub quit_character {
		1464	my ($pl) = @_;
		1465
		1466	my $name = $pl->ob->name;
		1467
		1468	$pl->{deny_save} = 1;
		1469	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1470
		1471	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1472	$pl->deactivate;
		1473	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1474	$pl->ns->destroy if $pl->ns;
		1475
		1476	my $path = playerdir $pl;
		1477	my $temp = "$path~$cf::RUNTIME~deleting~";
		1478	aio_rename $path, $temp;
		1479	delete $cf::PLAYER{$pl->ob->name};
		1480	$pl->destroy;
		1481
		1482	my $prefix = qr<^~\Q$name\E/>;
		1483
		1484	# nuke player maps
		1485	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1486
		1487	IO::AIO::aio_rmtree $temp;
		1488	}
		1489
		1490	=item $pl->kick
		1491
		1492	Kicks a player out of the game. This destroys the connection.
		1493
		1494	=cut
		1495
		1496	sub kick {
		1497	my ($pl, $kicker) = @_;
		1498
		1499	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1500	$pl->killer ("kicked");
		1501	$pl->ns->destroy;
		1502	}
		1503
		1504	=item cf::player::list_logins
		1505
		1506	Returns am arrayref of all valid playernames in the system, can take a
		1507	while and may block, so not sync_job-capable, ever.
		1508
		1509	=cut
		1510
		1511	sub list_logins {
		1512	my $dirs = aio_readdir $PLAYERDIR
		1513	or return [];
		1514
		1515	my @logins;
		1516
		1517	for my $login (@$dirs) {
		1518	my $path = path $login;
		1519
		1520	# a .pst is a dead give-away for a valid player
		1521	unless (-e "$path.pst") {
		1522	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1523	aio_read $fh, 0, 512, my $buf, 0 or next;
		1524	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1525	}
		1526
		1527	utf8::decode $login;
		1528	push @logins, $login;
		1529	}
		1530
		1531	\@logins
		1532	}
		1533
		1534	=item $player->maps
		1535
		1536	Returns an arrayref of map paths that are private for this
		1537	player. May block.
		1538
		1539	=cut
		1540
		1541	sub maps($) {
		1542	my ($pl) = @_;
		1543
		1544	$pl = ref $pl ? $pl->ob->name : $pl;
		1545
		1546	my $files = aio_readdir playerdir $pl
		1547	or return;
		1548
		1549	my @paths;
		1550
		1551	for (@$files) {
		1552	utf8::decode $_;
		1553	next if /\.(?:pl|pst)$/;
		1554	next unless /^$PATH_SEP/o;
		1555
		1556	push @paths, cf::map::normalise "~$pl/$_";
		1557	}
		1558
		1559	\@paths
		1560	}
		1561
		1562	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1563
		1564	Expand crossfire pod fragments into protocol xml.
		1565
		1566	=cut
		1567
		1568	use re 'eval';
		1569
		1570	my $group;
		1571	my $interior; $interior = qr{
		1572	# match a pod interior sequence sans C<< >>
		1573	(?:
		1574	\ (.*?)\ (?{ $group = $^N })
		1575	| < (??{$interior}) >
		1576	)
		1577	}x;
		1578
		1579	sub expand_cfpod {
		1580	my ($self, $pod) = @_;
		1581
		1582	my $xml;
		1583
		1584	while () {
		1585	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1586	$group = $1;
		1587
		1588	$group =~ s/&/&amp;/g;
		1589	$group =~ s/</&lt;/g;
		1590
		1591	$xml .= $group;
		1592	} elsif ($pod =~ m%\G
		1593	([BCGHITU])
		1594	<
		1595	(?:
		1596	([^<>]*) (?{ $group = $^N })
		1597	| < $interior >
		1598	)
		1599	>
		1600	%gcsx
		1601	) {
		1602	my ($code, $data) = ($1, $group);
		1603
		1604	if ($code eq "B") {
		1605	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1606	} elsif ($code eq "I") {
		1607	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1608	} elsif ($code eq "U") {
		1609	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1610	} elsif ($code eq "C") {
		1611	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1612	} elsif ($code eq "T") {
		1613	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1614	} elsif ($code eq "G") {
		1615	my ($male, $female) = split /\|/, $data;
		1616	$data = $self->gender ? $female : $male;
		1617	$xml .= expand_cfpod ($self, $data);
		1618	} elsif ($code eq "H") {
		1619	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1620	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1621	"")
		1622	[$self->{hintmode}];
		1623	} else {
		1624	$xml .= "error processing '$code($data)' directive";
		1625	}
		1626	} else {
		1627	if ($pod =~ /\G(.+)/) {
		1628	warn "parse error while expanding $pod (at $1)";
		1629	}
		1630	last;
		1631	}
		1632	}
		1633
		1634	for ($xml) {
		1635	# create single paragraphs (very hackish)
		1636	s/(?<=\S)\n(?=\w)/ /g;
		1637
		1638	# compress some whitespace
		1639	s/\s+\n/\n/g; # ws line-ends
		1640	s/\n\n+/\n/g; # double lines
		1641	s/^\n+//; # beginning lines
		1642	s/\n+$//; # ending lines
		1643	}
		1644
		1645	$xml
		1646	}
		1647
		1648	no re 'eval';
		1649
		1650	sub hintmode {
		1651	$_[0]{hintmode} = $_[1] if @_ > 1;
		1652	$_[0]{hintmode}
		1653	}
		1654
		1655	=item $player->ext_reply ($msgid, @msg)
		1656
		1657	Sends an ext reply to the player.
		1658
		1659	=cut
		1660
		1661	sub ext_reply($$@) {
		1662	my ($self, $id, @msg) = @_;
		1663
		1664	$self->ns->ext_reply ($id, @msg)
		1665	}
		1666
		1667	=item $player->ext_msg ($type, @msg)
		1668
		1669	Sends an ext event to the client.
		1670
		1671	=cut
		1672
		1673	sub ext_msg($$@) {
		1674	my ($self, $type, @msg) = @_;
		1675
		1676	$self->ns->ext_msg ($type, @msg);
		1677	}
		1678
		1679	=head3 cf::region
		1680
		1681	=over 4
		1682
		1683	=cut
		1684
		1685	package cf::region;
		1686
		1687	=item cf::region::find_by_path $path
		1688
		1689	Tries to decuce the likely region for a map knowing only its path.
		1690
		1691	=cut
		1692
		1693	sub find_by_path($) {
		1694	my ($path) = @_;
		1695
		1696	my ($match, $specificity);
		1697
		1698	for my $region (list) {
		1699	if ($region->{match} && $path =~ $region->{match}) {
		1700	($match, $specificity) = ($region, $region->specificity)
		1701	if $region->specificity > $specificity;
		1702	}
		1703	}
		1704
		1705	$match
		1706	}
		1707
		1708	=back
		1709
		1710	=head3 cf::map
		1711
		1712	=over 4
		1713
		1714	=cut
		1715
		1716	package cf::map;
		1717
		1718	use Fcntl;
		1719	use Coro::AIO;
		1720
		1721	use overload
		1722	'""' => \&as_string,
		1723	fallback => 1;
		1724
		1725	our $MAX_RESET = 3600;
		1726	our $DEFAULT_RESET = 3000;
		1727
		1728	sub generate_random_map {
		1729	my ($self, $rmp) = @_;
		1730	# mit "rum" bekleckern, nicht
		1731	$self->_create_random_map (
		1732	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1733	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1734	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1735	$rmp->{exit_on_final_map},
		1736	$rmp->{xsize}, $rmp->{ysize},
		1737	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1738	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1739	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1740	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1741	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1742	(cf::region::find $rmp->{region}), $rmp->{custom}
		1743	)
		1744	}
		1745
		1746	=item cf::map->register ($regex, $prio)
		1747
		1748	Register a handler for the map path matching the given regex at the
		1749	givne priority (higher is better, built-in handlers have priority 0, the
		1750	default).
		1751
		1752	=cut
		1753
740	sub register {	1754	sub register {
		1755	my (undef, $regex, $prio) = @_;
		1756	my $pkg = caller;
		1757
		1758	no strict;
		1759	push @{"$pkg\::ISA"}, __PACKAGE__;
		1760
		1761	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1762	}
		1763
		1764	# also paths starting with '/'
		1765	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1766
		1767	sub thawer_merge {
741	my ($base, $pkg) = @_;	1768	my ($self, $merge) = @_;
742		1769
743	#TODO	1770	# we have to keep some variables in memory intact
744	}	1771	local $self->{path};
		1772	local $self->{load_path};
745		1773
746	sub load_extension {	1774	$self->SUPER::thawer_merge ($merge);
		1775	}
		1776
		1777	sub normalise {
747	my ($path) = @_;	1778	my ($path, $base) = @_;
748		1779
749	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1780	$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		1781
755	warn "loading '$path' into '$pkg'\n";	1782	$path =~ s/\.map$//;
756		1783
757	open my $fh, "<:utf8", $path	1784	# map plan:
758	or die "$path: $!";	1785	#
		1786	# /! non-realised random map exit (special hack!)
		1787	# {... are special paths that are not being touched
		1788	# ?xxx/... are special absolute paths
		1789	# ?random/... random maps
		1790	# /... normal maps
		1791	# ~user/... per-player map of a specific user
759		1792
760	my $source =	1793	$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		1794
766	eval $source	1795	# treat it as relative path if it starts with
767	or die $@ ? "$path: $@\n"	1796	# something that looks reasonable
768	: "extension disabled.\n";	1797	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1798	$base or Carp::carp "normalise called with relative path and no base: '$path'";
769		1799
770	push @exts, $pkg;	1800	$base =~ s{[^/]+/?$}{};
771	$ext_pkg{$base} = $pkg;	1801	$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	# }	1802	}
789		1803
790	# remove commands	1804	for ($path) {
791	for my $name (keys %COMMAND) {	1805	redo if s{//}{/};
792	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1806	redo if s{/\.?/}{/};
		1807	redo if s{/[^/]+/\.\./}{/};
		1808	}
793		1809
794	if (@cb) {	1810	$path
795	$COMMAND{$name} = \@cb;	1811	}
		1812
		1813	sub new_from_path {
		1814	my (undef, $path, $base) = @_;
		1815
		1816	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1817
		1818	$path = normalise $path, $base;
		1819
		1820	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1821	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1822	my $self = bless cf::map::new, $pkg;
		1823	$self->{path} = $path; $self->path ($path);
		1824	$self->init; # pass $1 etc.
		1825	return $self;
		1826	}
		1827	}
		1828
		1829	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1830	()
		1831	}
		1832
		1833	sub init {
		1834	my ($self) = @_;
		1835
		1836	$self
		1837	}
		1838
		1839	sub as_string {
		1840	my ($self) = @_;
		1841
		1842	"$self->{path}"
		1843	}
		1844
		1845	# the displayed name, this is a one way mapping
		1846	sub visible_name {
		1847	&as_string
		1848	}
		1849
		1850	# the original (read-only) location
		1851	sub load_path {
		1852	my ($self) = @_;
		1853
		1854	"$MAPDIR/$self->{path}.map"
		1855	}
		1856
		1857	# the temporary/swap location
		1858	sub save_path {
		1859	my ($self) = @_;
		1860
		1861	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1862	"$TMPDIR/$path.map"
		1863	}
		1864
		1865	# the unique path, undef == no special unique path
		1866	sub uniq_path {
		1867	my ($self) = @_;
		1868
		1869	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1870	"$UNIQUEDIR/$path"
		1871	}
		1872
		1873	# and all this just because we cannot iterate over
		1874	# all maps in C++...
		1875	sub change_all_map_light {
		1876	my ($change) = @_;
		1877
		1878	$_->change_map_light ($change)
		1879	for grep $_->outdoor, values %cf::MAP;
		1880	}
		1881
		1882	sub decay_objects {
		1883	my ($self) = @_;
		1884
		1885	return if $self->{deny_reset};
		1886
		1887	$self->do_decay_objects;
		1888	}
		1889
		1890	sub unlink_save {
		1891	my ($self) = @_;
		1892
		1893	utf8::encode (my $save = $self->save_path);
		1894	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1895	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1896	}
		1897
		1898	sub load_header_from($) {
		1899	my ($self, $path) = @_;
		1900
		1901	utf8::encode $path;
		1902	my $f = new_from_file cf::object::thawer $path
		1903	or return;
		1904
		1905	$self->_load_header ($f)
		1906	or return;
		1907
		1908	local $MAP_LOADING{$self->{path}} = $self;
		1909	$f->resolve_delayed_derefs;
		1910
		1911	$self->{load_path} = $path;
		1912
		1913	1
		1914	}
		1915
		1916	sub load_header_orig {
		1917	my ($self) = @_;
		1918
		1919	$self->load_header_from ($self->load_path)
		1920	}
		1921
		1922	sub load_header_temp {
		1923	my ($self) = @_;
		1924
		1925	$self->load_header_from ($self->save_path)
		1926	}
		1927
		1928	sub prepare_temp {
		1929	my ($self) = @_;
		1930
		1931	$self->last_access ((delete $self->{last_access})
		1932	|| $cf::RUNTIME); #d#
		1933	# safety
		1934	$self->{instantiate_time} = $cf::RUNTIME
		1935	if $self->{instantiate_time} > $cf::RUNTIME;
		1936	}
		1937
		1938	sub prepare_orig {
		1939	my ($self) = @_;
		1940
		1941	$self->{load_original} = 1;
		1942	$self->{instantiate_time} = $cf::RUNTIME;
		1943	$self->last_access ($cf::RUNTIME);
		1944	$self->instantiate;
		1945	}
		1946
		1947	sub load_header {
		1948	my ($self) = @_;
		1949
		1950	if ($self->load_header_temp) {
		1951	$self->prepare_temp;
796	} else {	1952	} else {
797	delete $COMMAND{$name};	1953	$self->load_header_orig
798	}	1954	or return;
		1955	$self->prepare_orig;
		1956	}
		1957
		1958	$self->{deny_reset} = 1
		1959	if $self->no_reset;
		1960
		1961	$self->default_region (cf::region::find_by_path $self->{path})
		1962	unless $self->default_region;
		1963
799	}	1964	1
		1965	}
800		1966
801	# remove extcmds	1967	sub find;
802	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1968	sub find {
803	delete $EXTCMD{$name};	1969	my ($path, $origin) = @_;
		1970
		1971	$path = normalise $path, $origin && $origin->path;
		1972
		1973	cf::lock_wait "map_data:$path";#d#remove
		1974	cf::lock_wait "map_find:$path";
		1975
		1976	$cf::MAP{$path} || do {
		1977	my $guard1 = cf::lock_acquire "map_find:$path";
		1978	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		1979
		1980	my $map = new_from_path cf::map $path
		1981	or return;
		1982
		1983	$map->{last_save} = $cf::RUNTIME;
		1984
		1985	$map->load_header
		1986	or return;
		1987
		1988	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1989	# doing this can freeze the server in a sync job, obviously
		1990	#$cf::WAIT_FOR_TICK->wait;
		1991	undef $guard1;
		1992	undef $guard2;
		1993	$map->reset;
		1994	return find $path;
		1995	}
		1996
		1997	$cf::MAP{$path} = $map
		1998	}
		1999	}
		2000
		2001	sub pre_load { }
		2002	sub post_load { }
		2003
		2004	sub load {
		2005	my ($self) = @_;
		2006
		2007	local $self->{deny_reset} = 1; # loading can take a long time
		2008
		2009	my $path = $self->{path};
		2010
804	}	2011	{
		2012	my $guard = cf::lock_acquire "map_data:$path";
805		2013
806	if (my $cb = $pkg->can ("unload")) {	2014	return unless $self->valid;
807	eval {	2015	return unless $self->in_memory == cf::MAP_SWAPPED;
808	$cb->($pkg);	2016
		2017	$self->in_memory (cf::MAP_LOADING);
		2018
		2019	$self->alloc;
		2020
		2021	$self->pre_load;
		2022	cf::cede_to_tick;
		2023
		2024	my $f = new_from_file cf::object::thawer $self->{load_path};
		2025	$f->skip_block;
		2026	$self->_load_objects ($f)
		2027	or return;
		2028
		2029	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		2030	if delete $self->{load_original};
		2031
		2032	if (my $uniq = $self->uniq_path) {
		2033	utf8::encode $uniq;
		2034	unless (aio_stat $uniq) {
		2035	if (my $f = new_from_file cf::object::thawer $uniq) {
		2036	$self->clear_unique_items;
		2037	$self->_load_objects ($f);
		2038	$f->resolve_delayed_derefs;
		2039	}
809	1	2040	}
810	} or warn "$pkg unloaded, but with errors: $@";	2041	}
811	}
812		2042
813	Symbol::delete_package $pkg;	2043	$f->resolve_delayed_derefs;
814	}
815		2044
816	sub load_extensions {	2045	cf::cede_to_tick;
817	for my $ext (<$LIBDIR/*.ext>) {	2046	# now do the right thing for maps
818	next unless -r $ext;	2047	$self->link_multipart_objects;
819	eval {	2048	$self->difficulty ($self->estimate_difficulty)
820	load_extension $ext;	2049	unless $self->difficulty;
821	1	2050	cf::cede_to_tick;
822	} or warn "$ext not loaded: $@";
823	}
824	}
825		2051
826	#############################################################################	2052	unless ($self->{deny_activate}) {
827	# load/save/clean perl data associated with a map	2053	$self->decay_objects;
		2054	$self->fix_auto_apply;
		2055	$self->update_buttons;
		2056	cf::cede_to_tick;
		2057	$self->set_darkness_map;
		2058	cf::cede_to_tick;
		2059	$self->activate;
		2060	}
828		2061
829	*cf::mapsupport::on_clean = sub {	2062	$self->{last_save} = $cf::RUNTIME;
		2063	$self->last_access ($cf::RUNTIME);
		2064
		2065	$self->in_memory (cf::MAP_IN_MEMORY);
		2066	}
		2067
		2068	$self->post_load;
		2069	}
		2070
		2071	sub customise_for {
		2072	my ($self, $ob) = @_;
		2073
		2074	return find "~" . $ob->name . "/" . $self->{path}
		2075	if $self->per_player;
		2076
		2077	# return find "?party/" . $ob->name . "/" . $self->{path}
		2078	# if $self->per_party;
		2079
		2080	$self
		2081	}
		2082
		2083	# find and load all maps in the 3x3 area around a map
		2084	sub load_neighbours {
830	my ($map) = @_;	2085	my ($map) = @_;
831		2086
832	my $path = $map->tmpname;	2087	my @neigh; # diagonal neighbours
833	defined $path or return;
834		2088
835	unlink "$path.pst";	2089	for (0 .. 3) {
836	};	2090	my $neigh = $map->tile_path ($_)
		2091	or next;
		2092	$neigh = find $neigh, $map
		2093	or next;
		2094	$neigh->load;
837		2095
838	cf::map->attach (prio => -10000, package => cf::mapsupport::);	2096	push @neigh,
		2097	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2098	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2099	}
839		2100
840	#############################################################################	2101	for (grep defined $_->[0], @neigh) {
841	# load/save perl data associated with player->ob objects	2102	my ($path, $origin) = @$_;
842		2103	my $neigh = find $path, $origin
843	sub all_objects(@) {	2104	or next;
844	@_, map all_objects ($_->inv), @_	2105	$neigh->load;
		2106	}
845	}	2107	}
846		2108
847	# TODO: compatibility cruft, remove when no longer needed	2109	sub find_sync {
848	cf::player->attach (	2110	my ($path, $origin) = @_;
849	on_load => sub {
850	my ($pl, $path) = @_;
851		2111
852	for my $o (all_objects $pl->ob) {	2112	cf::sync_job { find $path, $origin }
853	if (my $value = $o->get_ob_key_value ("_perl_data")) {	2113	}
854	$o->set_ob_key_value ("_perl_data");
855		2114
856	%$o = %{ Storable::thaw pack "H*", $value };	2115	sub do_load_sync {
		2116	my ($map) = @_;
		2117
		2118	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2119	if $Coro::current == $Coro::main;
		2120
		2121	cf::sync_job { $map->load };
		2122	}
		2123
		2124	our %MAP_PREFETCH;
		2125	our $MAP_PREFETCHER = undef;
		2126
		2127	sub find_async {
		2128	my ($path, $origin, $load) = @_;
		2129
		2130	$path = normalise $path, $origin && $origin->{path};
		2131
		2132	if (my $map = $cf::MAP{$path}) {
		2133	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2134	}
		2135
		2136	$MAP_PREFETCH{$path} |= $load;
		2137
		2138	$MAP_PREFETCHER ||= cf::async {
		2139	$Coro::current->{desc} = "map prefetcher";
		2140
		2141	while (%MAP_PREFETCH) {
		2142	while (my ($k, $v) = each %MAP_PREFETCH) {
		2143	if (my $map = find $k) {
		2144	$map->load if $v;
		2145	}
		2146
		2147	delete $MAP_PREFETCH{$k};
857	}	2148	}
858	}	2149	}
		2150	undef $MAP_PREFETCHER;
		2151	};
		2152	$MAP_PREFETCHER->prio (6);
		2153
		2154	()
		2155	}
		2156
		2157	sub save {
		2158	my ($self) = @_;
		2159
		2160	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2161
		2162	$self->{last_save} = $cf::RUNTIME;
		2163
		2164	return unless $self->dirty;
		2165
		2166	my $save = $self->save_path; utf8::encode $save;
		2167	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2168
		2169	$self->{load_path} = $save;
		2170
		2171	return if $self->{deny_save};
		2172
		2173	local $self->{last_access} = $self->last_access;#d#
		2174
		2175	cf::async {
		2176	$Coro::current->{desc} = "map player save";
		2177	$_->contr->save for $self->players;
		2178	};
		2179
		2180	if ($uniq) {
		2181	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2182	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2183	} else {
		2184	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
859	},	2185	}
860	);	2186	}
861		2187
862	#############################################################################	2188	sub swap_out {
		2189	my ($self) = @_;
863		2190
864	=head2 CORE EXTENSIONS	2191	# save first because save cedes
		2192	$self->save;
865		2193
866	Functions and methods that extend core crossfire objects.	2194	my $lock = cf::lock_acquire "map_data:$self->{path}";
867		2195
868	=head3 cf::player	2196	return if $self->players;
		2197	return if $self->in_memory != cf::MAP_IN_MEMORY;
		2198	return if $self->{deny_save};
		2199
		2200	$self->in_memory (cf::MAP_SWAPPED);
		2201
		2202	$self->deactivate;
		2203	$_->clear_links_to ($self) for values %cf::MAP;
		2204	$self->clear;
		2205	}
		2206
		2207	sub reset_at {
		2208	my ($self) = @_;
		2209
		2210	# TODO: safety, remove and allow resettable per-player maps
		2211	return 1e99 if $self->{deny_reset};
		2212
		2213	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2214	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2215
		2216	$time + $to
		2217	}
		2218
		2219	sub should_reset {
		2220	my ($self) = @_;
		2221
		2222	$self->reset_at <= $cf::RUNTIME
		2223	}
		2224
		2225	sub reset {
		2226	my ($self) = @_;
		2227
		2228	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2229
		2230	return if $self->players;
		2231
		2232	warn "resetting map ", $self->path;
		2233
		2234	$self->in_memory (cf::MAP_SWAPPED);
		2235
		2236	# need to save uniques path
		2237	unless ($self->{deny_save}) {
		2238	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2239
		2240	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2241	if $uniq;
		2242	}
		2243
		2244	delete $cf::MAP{$self->path};
		2245
		2246	$self->deactivate;
		2247	$_->clear_links_to ($self) for values %cf::MAP;
		2248	$self->clear;
		2249
		2250	$self->unlink_save;
		2251	$self->destroy;
		2252	}
		2253
		2254	my $nuke_counter = "aaaa";
		2255
		2256	sub nuke {
		2257	my ($self) = @_;
		2258
		2259	{
		2260	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2261
		2262	delete $cf::MAP{$self->path};
		2263
		2264	$self->unlink_save;
		2265
		2266	bless $self, "cf::map";
		2267	delete $self->{deny_reset};
		2268	$self->{deny_save} = 1;
		2269	$self->reset_timeout (1);
		2270	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2271
		2272	$cf::MAP{$self->path} = $self;
		2273	}
		2274
		2275	$self->reset; # polite request, might not happen
		2276	}
		2277
		2278	=item $maps = cf::map::tmp_maps
		2279
		2280	Returns an arrayref with all map paths of currently instantiated and saved
		2281	maps. May block.
		2282
		2283	=cut
		2284
		2285	sub tmp_maps() {
		2286	[
		2287	map {
		2288	utf8::decode $_;
		2289	/\.map$/
		2290	? normalise $_
		2291	: ()
		2292	} @{ aio_readdir $TMPDIR or [] }
		2293	]
		2294	}
		2295
		2296	=item $maps = cf::map::random_maps
		2297
		2298	Returns an arrayref with all map paths of currently instantiated and saved
		2299	random maps. May block.
		2300
		2301	=cut
		2302
		2303	sub random_maps() {
		2304	[
		2305	map {
		2306	utf8::decode $_;
		2307	/\.map$/
		2308	? normalise "?random/$_"
		2309	: ()
		2310	} @{ aio_readdir $RANDOMDIR or [] }
		2311	]
		2312	}
		2313
		2314	=item cf::map::unique_maps
		2315
		2316	Returns an arrayref of paths of all shared maps that have
		2317	instantiated unique items. May block.
		2318
		2319	=cut
		2320
		2321	sub unique_maps() {
		2322	[
		2323	map {
		2324	utf8::decode $_;
		2325	/\.map$/
		2326	? normalise $_
		2327	: ()
		2328	} @{ aio_readdir $UNIQUEDIR or [] }
		2329	]
		2330	}
		2331
		2332	package cf;
		2333
		2334	=back
		2335
		2336	=head3 cf::object
		2337
		2338	=cut
		2339
		2340	package cf::object;
869		2341
870	=over 4	2342	=over 4
871		2343
872	=item cf::player::exists $login	2344	=item $ob->inv_recursive
873		2345
874	Returns true when the given account exists.	2346	Returns the inventory of the object _and_ their inventories, recursively.
875		2347
876	=cut	2348	=cut
877		2349
878	sub cf::player::exists($) {	2350	sub inv_recursive_;
879	cf::player::find $_[0]	2351	sub inv_recursive_ {
880	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2352	map { $_, inv_recursive_ $_->inv } @_
881	}	2353	}
882		2354
883	=item $player->ext_reply ($msgid, $msgtype, %msg)	2355	sub inv_recursive {
884		2356	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	}	2357	}
		2358
		2359	=item $ref = $ob->ref
		2360
		2361	creates and returns a persistent reference to an objetc that can be stored as a string.
		2362
		2363	=item $ob = cf::object::deref ($refstring)
		2364
		2365	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2366	even if the object actually exists. May block.
		2367
		2368	=cut
		2369
		2370	sub deref {
		2371	my ($ref) = @_;
		2372
		2373	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2374	my ($uuid, $name) = ($1, $2);
		2375	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2376	or return;
		2377	$pl->ob->uuid eq $uuid
		2378	or return;
		2379
		2380	$pl->ob
		2381	} else {
		2382	warn "$ref: cannot resolve object reference\n";
		2383	undef
		2384	}
		2385	}
		2386
		2387	package cf;
896		2388
897	=back	2389	=back
898		2390
899	=head3 cf::object::player	2391	=head3 cf::object::player
900		2392
…		…
916		2408
917	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2409	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
918		2410
919	if ($self->{record_replies}) {	2411	if ($self->{record_replies}) {
920	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2412	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2413
921	} else {	2414	} else {
		2415	my $pl = $self->contr;
		2416
		2417	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2418	my $dialog = $pl->{npc_dialog};
		2419	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2420
		2421	} else {
922	$msg = $npc->name . " says: $msg" if $npc;	2422	$msg = $npc->name . " says: $msg" if $npc;
923	$self->message ($msg, $flags);	2423	$self->message ($msg, $flags);
		2424	}
924	}	2425	}
		2426	}
		2427
		2428	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2429
		2430	=cut
		2431
		2432	sub cf::object::send_msg {
		2433	my $pl = shift->contr
		2434	or return;
		2435	$pl->send_msg (@_);
925	}	2436	}
926		2437
927	=item $player_object->may ("access")	2438	=item $player_object->may ("access")
928		2439
929	Returns wether the given player is authorized to access resource "access"	2440	Returns wether the given player is authorized to access resource "access"
…		…
938	(ref $cf::CFG{"may_$access"}	2449	(ref $cf::CFG{"may_$access"}
939	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2450	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
940	: $cf::CFG{"may_$access"})	2451	: $cf::CFG{"may_$access"})
941	}	2452	}
942		2453
		2454	=item $player_object->enter_link
		2455
		2456	Freezes the player and moves him/her to a special map (C<{link}>).
		2457
		2458	The player should be reasonably safe there for short amounts of time. You
		2459	I<MUST> call C<leave_link> as soon as possible, though.
		2460
		2461	Will never block.
		2462
		2463	=item $player_object->leave_link ($map, $x, $y)
		2464
		2465	Moves the player out of the special C<{link}> map onto the specified
		2466	map. If the map is not valid (or omitted), the player will be moved back
		2467	to the location he/she was before the call to C<enter_link>, or, if that
		2468	fails, to the emergency map position.
		2469
		2470	Might block.
		2471
		2472	=cut
		2473
		2474	sub link_map {
		2475	unless ($LINK_MAP) {
		2476	$LINK_MAP = cf::map::find "{link}"
		2477	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2478	$LINK_MAP->load;
		2479	}
		2480
		2481	$LINK_MAP
		2482	}
		2483
		2484	sub cf::object::player::enter_link {
		2485	my ($self) = @_;
		2486
		2487	$self->deactivate_recursive;
		2488
		2489	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2490
		2491	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2492	if $self->map && $self->map->{path} ne "{link}";
		2493
		2494	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2495	}
		2496
		2497	sub cf::object::player::leave_link {
		2498	my ($self, $map, $x, $y) = @_;
		2499
		2500	return unless $self->contr->active;
		2501
		2502	my $link_pos = delete $self->{_link_pos};
		2503
		2504	unless ($map) {
		2505	# restore original map position
		2506	($map, $x, $y) = @{ $link_pos || [] };
		2507	$map = cf::map::find $map;
		2508
		2509	unless ($map) {
		2510	($map, $x, $y) = @$EMERGENCY_POSITION;
		2511	$map = cf::map::find $map
		2512	or die "FATAL: cannot load emergency map\n";
		2513	}
		2514	}
		2515
		2516	($x, $y) = (-1, -1)
		2517	unless (defined $x) && (defined $y);
		2518
		2519	# use -1 or undef as default coordinates, not 0, 0
		2520	($x, $y) = ($map->enter_x, $map->enter_y)
		2521	if $x <=0 && $y <= 0;
		2522
		2523	$map->load;
		2524	$map->load_neighbours;
		2525
		2526	return unless $self->contr->active;
		2527	$self->activate_recursive;
		2528
		2529	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2530	$self->enter_map ($map, $x, $y);
		2531	}
		2532
		2533	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
		2534
		2535	Moves the player to the given map-path and coordinates by first freezing
		2536	her, loading and preparing them map, calling the provided $check callback
		2537	that has to return the map if sucecssful, and then unfreezes the player on
		2538	the new (success) or old (failed) map position. In either case, $done will
		2539	be called at the end of this process.
		2540
		2541	=cut
		2542
		2543	our $GOTOGEN;
		2544
		2545	sub cf::object::player::goto {
		2546	my ($self, $path, $x, $y, $check, $done) = @_;
		2547
		2548	# do generation counting so two concurrent goto's will be executed in-order
		2549	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2550
		2551	$self->enter_link;
		2552
		2553	(async {
		2554	$Coro::current->{desc} = "player::goto $path $x $y";
		2555
		2556	# *tag paths override both path and x|y
		2557	if ($path =~ /^\*(.*)$/) {
		2558	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2559	my $ob = $obs[rand @obs];
		2560
		2561	# see if we actually can go there
		2562	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2563	$ob = $obs[rand @obs];
		2564	} else {
		2565	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2566	}
		2567	# else put us there anyways for now #d#
		2568
		2569	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2570	} else {
		2571	($path, $x, $y) = (undef, undef, undef);
		2572	}
		2573	}
		2574
		2575	my $map = eval {
		2576	my $map = defined $path ? cf::map::find $path : undef;
		2577
		2578	if ($map) {
		2579	$map = $map->customise_for ($self);
		2580	$map = $check->($map) if $check && $map;
		2581	} else {
		2582	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2583	}
		2584
		2585	$map
		2586	};
		2587
		2588	if ($@) {
		2589	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2590	LOG llevError | logBacktrace, Carp::longmess $@;
		2591	}
		2592
		2593	if ($gen == $self->{_goto_generation}) {
		2594	delete $self->{_goto_generation};
		2595	$self->leave_link ($map, $x, $y);
		2596	}
		2597
		2598	$done->() if $done;
		2599	})->prio (1);
		2600	}
		2601
		2602	=item $player_object->enter_exit ($exit_object)
		2603
		2604	=cut
		2605
		2606	sub parse_random_map_params {
		2607	my ($spec) = @_;
		2608
		2609	my $rmp = { # defaults
		2610	xsize => (cf::rndm 15, 40),
		2611	ysize => (cf::rndm 15, 40),
		2612	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2613	#layout => string,
		2614	};
		2615
		2616	for (split /\n/, $spec) {
		2617	my ($k, $v) = split /\s+/, $_, 2;
		2618
		2619	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2620	}
		2621
		2622	$rmp
		2623	}
		2624
		2625	sub prepare_random_map {
		2626	my ($exit) = @_;
		2627
		2628	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2629
		2630	# all this does is basically replace the /! path by
		2631	# a new random map path (?random/...) with a seed
		2632	# that depends on the exit object
		2633
		2634	my $rmp = parse_random_map_params $exit->msg;
		2635
		2636	if ($exit->map) {
		2637	$rmp->{region} = $exit->region->name;
		2638	$rmp->{origin_map} = $exit->map->path;
		2639	$rmp->{origin_x} = $exit->x;
		2640	$rmp->{origin_y} = $exit->y;
		2641	}
		2642
		2643	$rmp->{random_seed} ||= $exit->random_seed;
		2644
		2645	my $data = cf::encode_json $rmp;
		2646	my $md5 = Digest::MD5::md5_hex $data;
		2647	my $meta = "$RANDOMDIR/$md5.meta";
		2648
		2649	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2650	aio_write $fh, 0, (length $data), $data, 0;
		2651	undef $fh;
		2652	aio_rename "$meta~", $meta;
		2653
		2654	$exit->slaying ("?random/$md5");
		2655	$exit->msg (undef);
		2656	}
		2657	}
		2658
		2659	sub cf::object::player::enter_exit {
		2660	my ($self, $exit) = @_;
		2661
		2662	return unless $self->type == cf::PLAYER;
		2663
		2664	if ($exit->slaying eq "/!") {
		2665	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2666	# the problem is that $exit might not survive long enough
		2667	# so it needs to be done right now, right here
		2668	cf::sync_job { prepare_random_map $exit };
		2669	}
		2670
		2671	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2672	my $hp = $exit->stats->hp;
		2673	my $sp = $exit->stats->sp;
		2674
		2675	$self->enter_link;
		2676
		2677	# if exit is damned, update players death & WoR home-position
		2678	$self->contr->savebed ($slaying, $hp, $sp)
		2679	if $exit->flag (FLAG_DAMNED);
		2680
		2681	(async {
		2682	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2683
		2684	$self->deactivate_recursive; # just to be sure
		2685	unless (eval {
		2686	$self->goto ($slaying, $hp, $sp);
		2687
		2688	1;
		2689	}) {
		2690	$self->message ("Something went wrong deep within the crossfire server. "
		2691	. "I'll try to bring you back to the map you were before. "
		2692	. "Please report this to the dungeon master!",
		2693	cf::NDI_UNIQUE | cf::NDI_RED);
		2694
		2695	warn "ERROR in enter_exit: $@";
		2696	$self->leave_link;
		2697	}
		2698	})->prio (1);
		2699	}
		2700
943	=head3 cf::client	2701	=head3 cf::client
944		2702
945	=over 4	2703	=over 4
946		2704
947	=item $client->send_drawinfo ($text, $flags)	2705	=item $client->send_drawinfo ($text, $flags)
…		…
953		2711
954	sub cf::client::send_drawinfo {	2712	sub cf::client::send_drawinfo {
955	my ($self, $text, $flags) = @_;	2713	my ($self, $text, $flags) = @_;
956		2714
957	utf8::encode $text;	2715	utf8::encode $text;
958	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2716	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
959	}	2717	}
960		2718
		2719	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2720
		2721	Send a drawinfo or msg packet to the client, formatting the msg for the
		2722	client if neccessary. C<$type> should be a string identifying the type of
		2723	the message, with C<log> being the default. If C<$color> is negative, suppress
		2724	the message unless the client supports the msg packet.
		2725
		2726	=cut
		2727
		2728	# non-persistent channels (usually the info channel)
		2729	our %CHANNEL = (
		2730	"c/identify" => {
		2731	id => "infobox",
		2732	title => "Identify",
		2733	reply => undef,
		2734	tooltip => "Items recently identified",
		2735	},
		2736	"c/examine" => {
		2737	id => "infobox",
		2738	title => "Examine",
		2739	reply => undef,
		2740	tooltip => "Signs and other items you examined",
		2741	},
		2742	"c/book" => {
		2743	id => "infobox",
		2744	title => "Book",
		2745	reply => undef,
		2746	tooltip => "The contents of a note or book",
		2747	},
		2748	"c/lookat" => {
		2749	id => "infobox",
		2750	title => "Look",
		2751	reply => undef,
		2752	tooltip => "What you saw there",
		2753	},
		2754	"c/who" => {
		2755	id => "infobox",
		2756	title => "Players",
		2757	reply => undef,
		2758	tooltip => "Shows players who are currently online",
		2759	},
		2760	"c/body" => {
		2761	id => "infobox",
		2762	title => "Body Parts",
		2763	reply => undef,
		2764	tooltip => "Shows which body parts you posess and are available",
		2765	},
		2766	"c/uptime" => {
		2767	id => "infobox",
		2768	title => "Uptime",
		2769	reply => undef,
		2770	tooltip => "How long the server has been running since last restart",
		2771	},
		2772	"c/mapinfo" => {
		2773	id => "infobox",
		2774	title => "Map Info",
		2775	reply => undef,
		2776	tooltip => "Information related to the maps",
		2777	},
		2778	);
		2779
		2780	sub cf::client::send_msg {
		2781	my ($self, $channel, $msg, $color, @extra) = @_;
		2782
		2783	$msg = $self->pl->expand_cfpod ($msg);
		2784
		2785	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2786
		2787	# check predefined channels, for the benefit of C
		2788	if ($CHANNEL{$channel}) {
		2789	$channel = $CHANNEL{$channel};
		2790
		2791	$self->ext_msg (channel_info => $channel)
		2792	if $self->can_msg;
		2793
		2794	$channel = $channel->{id};
		2795
		2796	} elsif (ref $channel) {
		2797	# send meta info to client, if not yet sent
		2798	unless (exists $self->{channel}{$channel->{id}}) {
		2799	$self->{channel}{$channel->{id}} = $channel;
		2800	$self->ext_msg (channel_info => $channel)
		2801	if $self->can_msg;
		2802	}
		2803
		2804	$channel = $channel->{id};
		2805	}
		2806
		2807	return unless @extra || length $msg;
		2808
		2809	if ($self->can_msg) {
		2810	# default colour, mask it out
		2811	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2812	if $color & cf::NDI_DEF;
		2813
		2814	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2815	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2816	} else {
		2817	if ($color >= 0) {
		2818	# replace some tags by gcfclient-compatible ones
		2819	for ($msg) {
		2820	1 while
		2821	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2822	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2823	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2824	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2825	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2826	}
		2827
		2828	$color &= cf::NDI_COLOR_MASK;
		2829
		2830	utf8::encode $msg;
		2831
		2832	if (0 && $msg =~ /\[/) {
		2833	# COMMAND/INFO
		2834	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2835	} else {
		2836	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2837	$self->send_packet ("drawinfo $color $msg")
		2838	}
		2839	}
		2840	}
		2841	}
		2842
		2843	=item $client->ext_msg ($type, @msg)
		2844
		2845	Sends an ext event to the client.
		2846
		2847	=cut
		2848
		2849	sub cf::client::ext_msg($$@) {
		2850	my ($self, $type, @msg) = @_;
		2851
		2852	if ($self->extcmd == 2) {
		2853	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2854	} elsif ($self->extcmd == 1) { # TODO: remove
		2855	push @msg, msgtype => "event_$type";
		2856	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2857	}
		2858	}
		2859
		2860	=item $client->ext_reply ($msgid, @msg)
		2861
		2862	Sends an ext reply to the client.
		2863
		2864	=cut
		2865
		2866	sub cf::client::ext_reply($$@) {
		2867	my ($self, $id, @msg) = @_;
		2868
		2869	if ($self->extcmd == 2) {
		2870	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2871	} elsif ($self->extcmd == 1) {
		2872	#TODO: version 1, remove
		2873	unshift @msg, msgtype => "reply", msgid => $id;
		2874	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2875	}
		2876	}
961		2877
962	=item $success = $client->query ($flags, "text", \&cb)	2878	=item $success = $client->query ($flags, "text", \&cb)
963		2879
964	Queues a query to the client, calling the given callback with	2880	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>,	2881	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>.	2882	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
967		2883
968	Queries can fail, so check the return code. Or don't, as queries will become	2884	Queries can fail, so check the return code. Or don't, as queries will
969	reliable at some point in the future.	2885	become reliable at some point in the future.
970		2886
971	=cut	2887	=cut
972		2888
973	sub cf::client::query {	2889	sub cf::client::query {
974	my ($self, $flags, $text, $cb) = @_;	2890	my ($self, $flags, $text, $cb) = @_;
…		…
982	utf8::encode $text;	2898	utf8::encode $text;
983	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2899	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
984		2900
985	$self->send_packet ($self->{query_queue}[0][0])	2901	$self->send_packet ($self->{query_queue}[0][0])
986	if @{ $self->{query_queue} } == 1;	2902	if @{ $self->{query_queue} } == 1;
		2903
		2904	1
987	}	2905	}
988		2906
989	cf::client->attach (	2907	cf::client->attach (
		2908	on_connect => sub {
		2909	my ($ns) = @_;
		2910
		2911	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2912	},
990	on_reply => sub {	2913	on_reply => sub {
991	my ($ns, $msg) = @_;	2914	my ($ns, $msg) = @_;
992		2915
993	# this weird shuffling is so that direct followup queries	2916	# this weird shuffling is so that direct followup queries
994	# get handled first	2917	# get handled first
995	my $queue = delete $ns->{query_queue};	2918	my $queue = delete $ns->{query_queue}
		2919	or return; # be conservative, not sure how that can happen, but we saw a crash here
996		2920
997	(shift @$queue)->[1]->($msg);	2921	(shift @$queue)->[1]->($msg);
		2922	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
998		2923
999	push @{ $ns->{query_queue} }, @$queue;	2924	push @{ $ns->{query_queue} }, @$queue;
1000		2925
1001	if (@{ $ns->{query_queue} } == @$queue) {	2926	if (@{ $ns->{query_queue} } == @$queue) {
1002	if (@$queue) {	2927	if (@$queue) {
…		…
1004	} else {	2929	} else {
1005	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2930	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1006	}	2931	}
1007	}	2932	}
1008	},	2933	},
		2934	on_exticmd => sub {
		2935	my ($ns, $buf) = @_;
		2936
		2937	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2938
		2939	if (ref $msg) {
		2940	my ($type, $reply, @payload) =
		2941	"ARRAY" eq ref $msg
		2942	? @$msg
		2943	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2944
		2945	my @reply;
		2946
		2947	if (my $cb = $EXTICMD{$type}) {
		2948	@reply = $cb->($ns, @payload);
		2949	}
		2950
		2951	$ns->ext_reply ($reply, @reply)
		2952	if $reply;
		2953
		2954	} else {
		2955	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2956	}
		2957
		2958	cf::override;
		2959	},
1009	);	2960	);
1010		2961
1011	=item $client->coro (\&cb)	2962	=item $client->async (\&cb)
1012		2963
1013	Create a new coroutine, running the specified callback. The coroutine will	2964	Create a new coroutine, running the specified callback. The coroutine will
1014	be automatically cancelled when the client gets destroyed (e.g. on logout,	2965	be automatically cancelled when the client gets destroyed (e.g. on logout,
1015	or loss of connection).	2966	or loss of connection).
1016		2967
1017	=cut	2968	=cut
1018		2969
1019	sub cf::client::coro {	2970	sub cf::client::async {
1020	my ($self, $cb) = @_;	2971	my ($self, $cb) = @_;
1021		2972
1022	my $coro; $coro = async {	2973	my $coro = &Coro::async ($cb);
1023	eval {
1024	$cb->();
1025	};
1026	warn $@ if $@;
1027	};
1028		2974
1029	$coro->on_destroy (sub {	2975	$coro->on_destroy (sub {
1030	delete $self->{_coro}{$coro+0};	2976	delete $self->{_coro}{$coro+0};
1031	});	2977	});
1032		2978
…		…
1059	our $safe = new Safe "safe";	3005	our $safe = new Safe "safe";
1060	our $safe_hole = new Safe::Hole;	3006	our $safe_hole = new Safe::Hole;
1061		3007
1062	$SIG{FPE} = 'IGNORE';	3008	$SIG{FPE} = 'IGNORE';
1063		3009
1064	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3010	$safe->permit_only (Opcode::opset qw(
		3011	:base_core :base_mem :base_orig :base_math
		3012	grepstart grepwhile mapstart mapwhile
		3013	sort time
		3014	));
1065		3015
1066	# here we export the classes and methods available to script code	3016	# here we export the classes and methods available to script code
1067		3017
1068	=pod	3018	=pod
1069		3019
1070	The following fucntions and emthods are available within a safe environment:	3020	The following functions and methods are available within a safe environment:
1071		3021
1072	cf::object contr pay_amount pay_player map	3022	cf::object
		3023	contr pay_amount pay_player map x y force_find force_add destroy
		3024	insert remove name archname title slaying race decrease_ob_nr
		3025
1073	cf::object::player player	3026	cf::object::player
1074	cf::player peaceful	3027	player
1075	cf::map trigger	3028
		3029	cf::player
		3030	peaceful
		3031
		3032	cf::map
		3033	trigger
1076		3034
1077	=cut	3035	=cut
1078		3036
1079	for (	3037	for (
1080	["cf::object" => qw(contr pay_amount pay_player map)],	3038	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3039	insert remove inv name archname title slaying race
		3040	decrease_ob_nr destroy)],
1081	["cf::object::player" => qw(player)],	3041	["cf::object::player" => qw(player)],
1082	["cf::player" => qw(peaceful)],	3042	["cf::player" => qw(peaceful)],
1083	["cf::map" => qw(trigger)],	3043	["cf::map" => qw(trigger)],
1084	) {	3044	) {
1085	no strict 'refs';	3045	no strict 'refs';
…		…
1156	=back	3116	=back
1157		3117
1158	=cut	3118	=cut
1159		3119
1160	#############################################################################	3120	#############################################################################
		3121	# the server's init and main functions
1161		3122
1162	=head2 EXTENSION DATABASE SUPPORT	3123	sub load_facedata($) {
		3124	my ($path) = @_;
1163		3125
1164	Crossfire maintains a very simple database for extension use. It can	3126	# HACK to clear player env face cache, we need some signal framework
1165	currently store anything that can be serialised using Storable, which	3127	# for this (global event?)
1166	excludes objects.	3128	%ext::player_env::MUSIC_FACE_CACHE = ();
1167		3129
1168	The parameter C<$family> should best start with the name of the extension	3130	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1169	using it, it should be unique.
1170		3131
1171	=over 4	3132	warn "loading facedata from $path\n";
1172		3133
1173	=item $hashref = cf::db_get $family	3134	my $facedata;
		3135	0 < aio_load $path, $facedata
		3136	or die "$path: $!";
1174		3137
1175	Return a hashref for use by the extension C<$family>, which can be	3138	$facedata = Coro::Storable::thaw $facedata;
1176	modified. After modifications, you have to call C<cf::db_dirty> or
1177	C<cf::db_sync>.
1178		3139
1179	=item $value = cf::db_get $family => $key	3140	$facedata->{version} == 2
		3141	or cf::cleanup "$path: version mismatch, cannot proceed.";
1180		3142
1181	Returns a single value from the database	3143	# patch in the exptable
1182		3144	$facedata->{resource}{"res/exp_table"} = {
1183	=item cf::db_put $family => $hashref	3145	type => FT_RSRC,
1184		3146	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	});	3147	};
		3148	cf::cede_to_tick;
1236		3149
1237	sub db_dirty() {
1238	$dirty = 1;
1239	$idle->start;
1240	}	3150	{
		3151	my $faces = $facedata->{faceinfo};
1241		3152
1242	sub db_get($;$) {	3153	while (my ($face, $info) = each %$faces) {
1243	@_ >= 2	3154	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1244	? $DB->{$_[0]}{$_[1]}
1245	: ($DB->{$_[0]} ||= { })
1246	}
1247		3155
1248	sub db_put($$;$) {	3156	cf::face::set_visibility $idx, $info->{visibility};
1249	if (@_ >= 3) {	3157	cf::face::set_magicmap $idx, $info->{magicmap};
1250	$DB->{$_[0]}{$_[1]} = $_[2];	3158	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1251	} else {	3159	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1252	$DB->{$_[0]} = $_[1];
1253	}
1254	db_dirty;
1255	}
1256		3160
1257	cf::global->attach (	3161	cf::cede_to_tick;
1258	prio => 10000,
1259	on_cleanup => sub {
1260	db_sync;
1261	},	3162	}
1262	);
1263	}
1264		3163
1265	#############################################################################	3164	while (my ($face, $info) = each %$faces) {
1266	# the server's main()	3165	next unless $info->{smooth};
1267		3166
1268	sub cfg_load {	3167	my $idx = cf::face::find $face
		3168	or next;
		3169
		3170	if (my $smooth = cf::face::find $info->{smooth}) {
		3171	cf::face::set_smooth $idx, $smooth;
		3172	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3173	} else {
		3174	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3175	}
		3176
		3177	cf::cede_to_tick;
		3178	}
		3179	}
		3180
		3181	{
		3182	my $anims = $facedata->{animinfo};
		3183
		3184	while (my ($anim, $info) = each %$anims) {
		3185	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3186	cf::cede_to_tick;
		3187	}
		3188
		3189	cf::anim::invalidate_all; # d'oh
		3190	}
		3191
		3192	{
		3193	# TODO: for gcfclient pleasure, we should give resources
		3194	# that gcfclient doesn't grok a >10000 face index.
		3195	my $res = $facedata->{resource};
		3196
		3197	while (my ($name, $info) = each %$res) {
		3198	if (defined $info->{type}) {
		3199	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3200	my $data;
		3201
		3202	if ($info->{type} & 1) {
		3203	# prepend meta info
		3204
		3205	my $meta = $enc->encode ({
		3206	name => $name,
		3207	%{ $info->{meta} || {} },
		3208	});
		3209
		3210	$data = pack "(w/a*)*", $meta, $info->{data};
		3211	} else {
		3212	$data = $info->{data};
		3213	}
		3214
		3215	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3216	cf::face::set_type $idx, $info->{type};
		3217	} else {
		3218	$RESOURCE{$name} = $info;
		3219	}
		3220
		3221	cf::cede_to_tick;
		3222	}
		3223	}
		3224
		3225	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3226
		3227	1
		3228	}
		3229
		3230	cf::global->attach (on_resource_update => sub {
		3231	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3232	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3233
		3234	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3235	my $sound = $soundconf->{compat}[$_]
		3236	or next;
		3237
		3238	my $face = cf::face::find "sound/$sound->[1]";
		3239	cf::sound::set $sound->[0] => $face;
		3240	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3241	}
		3242
		3243	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3244	my $face = cf::face::find "sound/$v";
		3245	cf::sound::set $k => $face;
		3246	}
		3247	}
		3248	});
		3249
		3250	register_exticmd fx_want => sub {
		3251	my ($ns, $want) = @_;
		3252
		3253	while (my ($k, $v) = each %$want) {
		3254	$ns->fx_want ($k, $v);
		3255	}
		3256	};
		3257
		3258	sub reload_regions {
		3259	# HACK to clear player env face cache, we need some signal framework
		3260	# for this (global event?)
		3261	%ext::player_env::MUSIC_FACE_CACHE = ();
		3262
		3263	load_resource_file "$MAPDIR/regions"
		3264	or die "unable to load regions file\n";
		3265
		3266	for (cf::region::list) {
		3267	$_->{match} = qr/$_->{match}/
		3268	if exists $_->{match};
		3269	}
		3270	}
		3271
		3272	sub reload_facedata {
		3273	load_facedata "$DATADIR/facedata"
		3274	or die "unable to load facedata\n";
		3275	}
		3276
		3277	sub reload_archetypes {
		3278	load_resource_file "$DATADIR/archetypes"
		3279	or die "unable to load archetypes\n";
		3280	#d# NEED to laod twice to resolve forward references
		3281	# this really needs to be done in an extra post-pass
		3282	# (which needs to be synchronous, so solve it differently)
		3283	load_resource_file "$DATADIR/archetypes"
		3284	or die "unable to load archetypes\n";
		3285	}
		3286
		3287	sub reload_treasures {
		3288	load_resource_file "$DATADIR/treasures"
		3289	or die "unable to load treasurelists\n";
		3290	}
		3291
		3292	sub reload_resources {
		3293	warn "reloading resource files...\n";
		3294
		3295	reload_regions;
		3296	reload_facedata;
		3297	#reload_archetypes;#d#
		3298	reload_archetypes;
		3299	reload_treasures;
		3300
		3301	warn "finished reloading resource files\n";
		3302	}
		3303
		3304	sub init {
		3305	reload_resources;
		3306	}
		3307
		3308	sub reload_config {
1269	open my $fh, "<:utf8", cf::confdir . "/config"	3309	open my $fh, "<:utf8", "$CONFDIR/config"
1270	or return;	3310	or return;
1271		3311
1272	local $/;	3312	local $/;
1273	*CFG = YAML::Syck::Load <$fh>;	3313	*CFG = YAML::Syck::Load <$fh>;
		3314
		3315	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3316
		3317	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3318	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3319
		3320	if (exists $CFG{mlockall}) {
		3321	eval {
		3322	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3323	and die "WARNING: m(un)lockall failed: $!\n";
		3324	};
		3325	warn $@ if $@;
		3326	}
1274	}	3327	}
1275		3328
1276	sub main {	3329	sub main {
1277	cfg_load;	3330	# we must not ever block the main coroutine
1278	db_load;	3331	local $Coro::idle = sub {
		3332	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3333	(async {
		3334	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3335	EV::loop EV::LOOP_ONESHOT;
		3336	})->prio (Coro::PRIO_MAX);
		3337	};
		3338
		3339	reload_config;
		3340	db_init;
1279	load_extensions;	3341	load_extensions;
		3342
		3343	$TICK_WATCHER->start;
		3344	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
1280	Event::loop;	3345	EV::loop;
1281	}	3346	}
1282		3347
1283	#############################################################################	3348	#############################################################################
1284	# initialisation	3349	# initialisation and cleanup
1285		3350
1286	sub _perl_reload() {	3351	# install some emergency cleanup handlers
		3352	BEGIN {
		3353	our %SIGWATCHER = ();
		3354	for my $signal (qw(INT HUP TERM)) {
		3355	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3356	cf::cleanup "SIG$signal";
		3357	};
		3358	}
		3359	}
		3360
		3361	sub write_runtime {
		3362	my $runtime = "$LOCALDIR/runtime";
		3363
		3364	# first touch the runtime file to show we are still running:
		3365	# the fsync below can take a very very long time.
		3366
		3367	IO::AIO::aio_utime $runtime, undef, undef;
		3368
		3369	my $guard = cf::lock_acquire "write_runtime";
		3370
		3371	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3372	or return;
		3373
		3374	my $value = $cf::RUNTIME + 90 + 10;
		3375	# 10 is the runtime save interval, for a monotonic clock
		3376	# 60 allows for the watchdog to kill the server.
		3377
		3378	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3379	and return;
		3380
		3381	# always fsync - this file is important
		3382	aio_fsync $fh
		3383	and return;
		3384
		3385	# touch it again to show we are up-to-date
		3386	aio_utime $fh, undef, undef;
		3387
		3388	close $fh
		3389	or return;
		3390
		3391	aio_rename "$runtime~", $runtime
		3392	and return;
		3393
		3394	warn "runtime file written.\n";
		3395
		3396	1
		3397	}
		3398
		3399	sub emergency_save() {
		3400	my $freeze_guard = cf::freeze_mainloop;
		3401
		3402	warn "enter emergency perl save\n";
		3403
		3404	cf::sync_job {
		3405	# use a peculiar iteration method to avoid tripping on perl
		3406	# refcount bugs in for. also avoids problems with players
		3407	# and maps saved/destroyed asynchronously.
		3408	warn "begin emergency player save\n";
		3409	for my $login (keys %cf::PLAYER) {
		3410	my $pl = $cf::PLAYER{$login} or next;
		3411	$pl->valid or next;
		3412	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3413	$pl->save;
		3414	}
		3415	warn "end emergency player save\n";
		3416
		3417	warn "begin emergency map save\n";
		3418	for my $path (keys %cf::MAP) {
		3419	my $map = $cf::MAP{$path} or next;
		3420	$map->valid or next;
		3421	$map->save;
		3422	}
		3423	warn "end emergency map save\n";
		3424
		3425	warn "begin emergency database checkpoint\n";
		3426	BDB::db_env_txn_checkpoint $DB_ENV;
		3427	warn "end emergency database checkpoint\n";
		3428	};
		3429
		3430	warn "leave emergency perl save\n";
		3431	}
		3432
		3433	sub post_cleanup {
		3434	my ($make_core) = @_;
		3435
		3436	warn Carp::longmess "post_cleanup backtrace"
		3437	if $make_core;
		3438	}
		3439
		3440	sub do_reload_perl() {
1287	# can/must only be called in main	3441	# can/must only be called in main
1288	if ($Coro::current != $Coro::main) {	3442	if ($Coro::current != $Coro::main) {
1289	warn "can only reload from main coroutine\n";	3443	warn "can only reload from main coroutine";
1290	return;	3444	return;
1291	}	3445	}
1292		3446
1293	warn "reloading...";	3447	warn "reloading...";
1294		3448
1295	local $FREEZE = 1;	3449	warn "entering sync_job";
		3450
		3451	cf::sync_job {
		3452	cf::write_runtime; # external watchdog should not bark
1296	cf::emergency_save;	3453	cf::emergency_save;
		3454	cf::write_runtime; # external watchdog should not bark
1297		3455
1298	eval {	3456	warn "syncing database to disk";
		3457	BDB::db_env_txn_checkpoint $DB_ENV;
		3458
1299	# if anything goes wrong in here, we should simply crash as we already saved	3459	# if anything goes wrong in here, we should simply crash as we already saved
1300		3460
1301	# cancel all watchers	3461	warn "flushing outstanding aio requests";
1302	for (Event::all_watchers) {	3462	for (;;) {
1303	$_->cancel if $_->data & WF_AUTOCANCEL;	3463	BDB::flush;
		3464	IO::AIO::flush;
		3465	Coro::cede_notself;
		3466	last unless IO::AIO::nreqs || BDB::nreqs;
		3467	warn "iterate...";
1304	}	3468	}
1305		3469
		3470	++$RELOAD;
		3471
1306	# cancel all extension coros	3472	warn "cancelling all extension coros";
1307	$_->cancel for values %EXT_CORO;	3473	$_->cancel for values %EXT_CORO;
1308	%EXT_CORO = ();	3474	%EXT_CORO = ();
1309		3475
1310	# unload all extensions	3476	warn "removing commands";
1311	for (@exts) {	3477	%COMMAND = ();
		3478
		3479	warn "removing ext/exti commands";
		3480	%EXTCMD = ();
		3481	%EXTICMD = ();
		3482
		3483	warn "unloading/nuking all extensions";
		3484	for my $pkg (@EXTS) {
1312	warn "unloading <$_>";	3485	warn "... unloading $pkg";
1313	unload_extension $_;	3486
		3487	if (my $cb = $pkg->can ("unload")) {
		3488	eval {
		3489	$cb->($pkg);
		3490	1
		3491	} or warn "$pkg unloaded, but with errors: $@";
1314	}	3492	}
1315		3493
		3494	warn "... nuking $pkg";
		3495	Symbol::delete_package $pkg;
		3496	}
		3497
1316	# unload all modules loaded from $LIBDIR	3498	warn "unloading all perl modules loaded from $LIBDIR";
1317	while (my ($k, $v) = each %INC) {	3499	while (my ($k, $v) = each %INC) {
1318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3500	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1319		3501
1320	warn "removing <$k>";	3502	warn "... unloading $k";
1321	delete $INC{$k};	3503	delete $INC{$k};
1322		3504
1323	$k =~ s/\.pm$//;	3505	$k =~ s/\.pm$//;
1324	$k =~ s/\//::/g;	3506	$k =~ s/\//::/g;
1325		3507
…		…
1328	}	3510	}
1329		3511
1330	Symbol::delete_package $k;	3512	Symbol::delete_package $k;
1331	}	3513	}
1332		3514
1333	# sync database to disk
1334	cf::db_sync;
1335	IO::AIO::flush;
1336
1337	# get rid of safe::, as good as possible	3515	warn "getting rid of safe::, as good as possible";
1338	Symbol::delete_package "safe::$_"	3516	Symbol::delete_package "safe::$_"
1339	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3517	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1340		3518
1341	# remove register_script_function callbacks
1342	# TODO
1343
1344	# unload cf.pm "a bit"	3519	warn "unloading cf.pm \"a bit\"";
1345	delete $INC{"cf.pm"};	3520	delete $INC{"cf.pm"};
		3521	delete $INC{"cf/pod.pm"};
1346		3522
1347	# don't, removes xs symbols, too,	3523	# don't, removes xs symbols, too,
1348	# and global variables created in xs	3524	# and global variables created in xs
1349	#Symbol::delete_package __PACKAGE__;	3525	#Symbol::delete_package __PACKAGE__;
1350		3526
1351	# reload cf.pm	3527	warn "unload completed, starting to reload now";
		3528
1352	warn "reloading cf.pm";	3529	warn "reloading cf.pm";
1353	require cf;	3530	require cf;
1354	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3531	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1355		3532
1356	# load config and database again	3533	warn "loading config and database again";
1357	cf::cfg_load;	3534	cf::reload_config;
1358	cf::db_load;
1359		3535
1360	# load extensions
1361	warn "load extensions";	3536	warn "loading extensions";
1362	cf::load_extensions;	3537	cf::load_extensions;
1363		3538
1364	# reattach attachments to objects	3539	warn "reattaching attachments to objects/players";
1365	warn "reattach";	3540	_global_reattach; # objects, sockets
1366	_global_reattach;	3541	warn "reattaching attachments to maps";
1367	};	3542	reattach $_ for values %MAP;
		3543	warn "reattaching attachments to players";
		3544	reattach $_ for values %PLAYER;
1368		3545
1369	if ($@) {	3546	warn "leaving sync_job";
		3547
		3548	1
		3549	} or do {
1370	warn $@;	3550	warn $@;
1371	warn "error while reloading, exiting.";	3551	warn "error while reloading, exiting.";
1372	exit 1;	3552	exit 1;
1373	}	3553	};
1374		3554
1375	warn "reloaded successfully";	3555	warn "reloaded";
1376	};	3556	};
1377		3557
1378	sub perl_reload() {	3558	our $RELOAD_WATCHER; # used only during reload
1379	_perl_reload;
1380	}
1381		3559
1382	register "<global>", __PACKAGE__;	3560	sub reload_perl() {
		3561	# doing reload synchronously and two reloads happen back-to-back,
		3562	# coro crashes during coro_state_free->destroy here.
1383		3563
		3564	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
		3565	undef $RELOAD_WATCHER;
		3566	do_reload_perl;
		3567	};
		3568	}
		3569
1384	register_command "perl-reload" => sub {	3570	register_command "reload" => sub {
1385	my ($who, $arg) = @_;	3571	my ($who, $arg) = @_;
1386		3572
1387	if ($who->flag (FLAG_WIZ)) {	3573	if ($who->flag (FLAG_WIZ)) {
1388	$who->message ("reloading...");	3574	$who->message ("reloading server.");
1389	_perl_reload;	3575	async {
		3576	$Coro::current->{desc} = "perl_reload";
		3577	reload_perl;
		3578	};
1390	}	3579	}
1391	};	3580	};
1392		3581
1393	unshift @INC, $LIBDIR;	3582	unshift @INC, $LIBDIR;
1394		3583
1395	$TICK_WATCHER = Event->timer (	3584	my $bug_warning = 0;
1396	reentrant => 0,	3585
1397	prio => 0,	3586	our @WAIT_FOR_TICK;
1398	at => $NEXT_TICK || $TICK,	3587	our @WAIT_FOR_TICK_BEGIN;
1399	data => WF_AUTOCANCEL,	3588
1400	cb => sub {	3589	sub wait_for_tick {
1401	unless ($FREEZE) {	3590	return unless $TICK_WATCHER->is_active;
		3591	return if $Coro::current == $Coro::main;
		3592
		3593	my $signal = new Coro::Signal;
		3594	push @WAIT_FOR_TICK, $signal;
		3595	$signal->wait;
		3596	}
		3597
		3598	sub wait_for_tick_begin {
		3599	return unless $TICK_WATCHER->is_active;
		3600	return if $Coro::current == $Coro::main;
		3601
		3602	my $signal = new Coro::Signal;
		3603	push @WAIT_FOR_TICK_BEGIN, $signal;
		3604	$signal->wait;
		3605	}
		3606
		3607	$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
		3608	if ($Coro::current != $Coro::main) {
		3609	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3610	unless ++$bug_warning > 10;
		3611	return;
		3612	}
		3613
		3614	$NOW = $tick_start = EV::now;
		3615
1402	cf::server_tick; # one server iteration	3616	cf::server_tick; # one server iteration
		3617
1403	$RUNTIME += $TICK;	3618	$RUNTIME += $TICK;
		3619	$NEXT_TICK = $_[0]->at;
		3620
		3621	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3622	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		3623	Coro::async_pool {
		3624	$Coro::current->{desc} = "runtime saver";
		3625	write_runtime
		3626	or warn "ERROR: unable to write runtime file: $!";
1404	}	3627	};
1405
1406	$NEXT_TICK += $TICK;
1407
1408	# if we are delayed by four ticks or more, skip them all
1409	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1410
1411	$TICK_WATCHER->at ($NEXT_TICK);
1412	$TICK_WATCHER->start;
1413	},	3628	}
1414	);
1415		3629
1416	IO::AIO::max_poll_time $TICK * 0.2;	3630	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3631	$sig->send;
		3632	}
		3633	while (my $sig = shift @WAIT_FOR_TICK) {
		3634	$sig->send;
		3635	}
1417		3636
1418	Event->io (fd => IO::AIO::poll_fileno,	3637	$LOAD = ($NOW - $tick_start) / $TICK;
1419	poll => 'r',	3638	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
1420	prio => 5,
1421	data => WF_AUTOCANCEL,
1422	cb => \&IO::AIO::poll_cb);
1423		3639
1424	# we must not ever block the main coroutine	3640	_post_tick;
1425	$Coro::idle = sub {
1426	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
1427	warn "FATAL: Coro::idle was called, major BUG\n";
1428	(Coro::unblock_sub {
1429	Event::one_event;
1430	})->();
1431	};	3641	};
		3642	$TICK_WATCHER->priority (EV::MAXPRI);
		3643
		3644	{
		3645	# configure BDB
		3646
		3647	BDB::min_parallel 8;
		3648	BDB::max_poll_reqs $TICK * 0.1;
		3649	$Coro::BDB::WATCHER->priority (1);
		3650
		3651	unless ($DB_ENV) {
		3652	$DB_ENV = BDB::db_env_create;
		3653	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3654	| BDB::LOG_AUTOREMOVE, 1);
		3655	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3656	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3657
		3658	cf::sync_job {
		3659	eval {
		3660	BDB::db_env_open
		3661	$DB_ENV,
		3662	$BDBDIR,
		3663	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3664	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3665	0666;
		3666
		3667	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3668	};
		3669
		3670	cf::cleanup "db_env_open(db): $@" if $@;
		3671	};
		3672	}
		3673
		3674	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3675	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3676	};
		3677	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3678	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3679	};
		3680	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3681	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3682	};
		3683	}
		3684
		3685	{
		3686	# configure IO::AIO
		3687
		3688	IO::AIO::min_parallel 8;
		3689	IO::AIO::max_poll_time $TICK * 0.1;
		3690	$Coro::AIO::WATCHER->priority (1);
		3691	}
		3692
		3693	my $_log_backtrace;
		3694
		3695	sub _log_backtrace {
		3696	my ($msg, @addr) = @_;
		3697
		3698	$msg =~ s/\n//;
		3699
		3700	# limit the # of concurrent backtraces
		3701	if ($_log_backtrace < 2) {
		3702	++$_log_backtrace;
		3703	async {
		3704	$Coro::current->{desc} = "abt $msg";
		3705
		3706	my @bt = fork_call {
		3707	@addr = map { sprintf "%x", $_ } @addr;
		3708	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3709	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3710	or die "addr2line: $!";
		3711
		3712	my @funcs;
		3713	my @res = <$fh>;
		3714	chomp for @res;
		3715	while (@res) {
		3716	my ($func, $line) = splice @res, 0, 2, ();
		3717	push @funcs, "[$func] $line";
		3718	}
		3719
		3720	@funcs
		3721	};
		3722
		3723	LOG llevInfo, "[ABT] $msg\n";
		3724	LOG llevInfo, "[ABT] $_\n" for @bt;
		3725	--$_log_backtrace;
		3726	};
		3727	} else {
		3728	LOG llevInfo, "[ABT] $msg\n";
		3729	LOG llevInfo, "[ABT] [suppressed]\n";
		3730	}
		3731	}
		3732
		3733	# load additional modules
		3734	use cf::pod;
		3735
		3736	END { cf::emergency_save }
1432		3737
1433	1	3738	1
1434		3739

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