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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.85 by root, Mon Dec 11 22:56:57 2006 UTC vs.
Revision 1.219 by root, Sat Feb 17 03:19:44 2007 UTC

1	package cf;	1	package cf;
		2
		3	use utf8;
		4	use strict;
2		5
3	use Symbol;	6	use Symbol;
4	use List::Util;	7	use List::Util;
5	use Storable;	8	use Storable;
6	use Opcode;	9	use Opcode;
7	use Safe;	10	use Safe;
8	use Safe::Hole;	11	use Safe::Hole;
9		12
		13	use Coro 3.5 ();
		14	use Coro::Event;
		15	use Coro::Timer;
		16	use Coro::Signal;
		17	use Coro::Semaphore;
		18	use Coro::AIO;
		19
		20	use BDB ();
		21	use Data::Dumper;
		22	use Digest::MD5;
		23	use Fcntl;
10	use IO::AIO ();	24	use IO::AIO 2.32 ();
11	use YAML::Syck ();	25	use YAML::Syck ();
12	use Time::HiRes;	26	use Time::HiRes;
13	use Event;	27	use Compress::LZF;
		28
		29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		30
14	$Event::Eval = 1; # no idea why this is required, but it is	31	use Event; $Event::Eval = 1; # no idea why this is required, but it is
		32
		33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
15		34
16	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
17	$YAML::Syck::ImplicitUnicode = 1;	36	$YAML::Syck::ImplicitUnicode = 1;
18		37
19	use strict;	38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
20		39
21	our %COMMAND = ();	40	our %COMMAND = ();
22	our %COMMAND_TIME = ();	41	our %COMMAND_TIME = ();
		42
		43	our @EXTS = (); # list of extension package names
23	our %EXTCMD = ();	44	our %EXTCMD = ();
24		45	our %EXT_CORO = (); # coroutines bound to extensions
25	_init_vars;	46	our %EXT_MAP = (); # pluggable maps
26		47
27	our @EVENT;	48	our @EVENT;
28	our $LIBDIR = maps_directory "perl";	49	our $LIBDIR = datadir . "/ext";
29		50
30	our $TICK = MAX_TIME * 1e-6;	51	our $TICK = MAX_TIME * 1e-6;
31	our $TICK_WATCHER;	52	our $TICK_WATCHER;
		53	our $AIO_POLL_WATCHER;
		54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
32	our $NEXT_TICK;	55	our $NEXT_TICK;
		56	our $NOW;
		57	our $USE_FSYNC = 1; # use fsync to write maps - default off
		58
		59	our $BDB_POLL_WATCHER;
		60	our $DB_ENV;
33		61
34	our %CFG;	62	our %CFG;
35		63
36	our $UPTIME; $UPTIME ||= time;	64	our $UPTIME; $UPTIME ||= time;
		65	our $RUNTIME;
		66
		67	our %PLAYER; # all users
		68	our %MAP; # all maps
		69	our $LINK_MAP; # the special {link} map, which is always available
		70	our $RANDOM_MAPS = cf::localdir . "/random";
		71	our $BDB_ENV_DIR = cf::localdir . "/db";
		72
		73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		75
		76	# used to convert map paths into valid unix filenames by replacing / by ∕
		77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		78
		79	binmode STDOUT;
		80	binmode STDERR;
		81
		82	# read virtual server time, if available
		83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		84	open my $fh, "<", cf::localdir . "/runtime"
		85	or die "unable to read runtime file: $!";
		86	$RUNTIME = <$fh> + 0.;
		87	}
		88
		89	mkdir cf::localdir;
		90	mkdir cf::localdir . "/" . cf::playerdir;
		91	mkdir cf::localdir . "/" . cf::tmpdir;
		92	mkdir cf::localdir . "/" . cf::uniquedir;
		93	mkdir $RANDOM_MAPS;
		94	mkdir $BDB_ENV_DIR;
		95
		96	our $EMERGENCY_POSITION;
		97
		98	sub cf::map::normalise;
37		99
38	#############################################################################	100	#############################################################################
39		101
40	=head2 GLOBAL VARIABLES	102	=head2 GLOBAL VARIABLES
41		103
42	=over 4	104	=over 4
43		105
44	=item $cf::UPTIME	106	=item $cf::UPTIME
45		107
46	The timestamp of the server start (so not actually an uptime).	108	The timestamp of the server start (so not actually an uptime).
		109
		110	=item $cf::RUNTIME
		111
		112	The time this server has run, starts at 0 and is increased by $cf::TICK on
		113	every server tick.
47		114
48	=item $cf::LIBDIR	115	=item $cf::LIBDIR
49		116
50	The perl library directory, where extensions and cf-specific modules can	117	The perl library directory, where extensions and cf-specific modules can
51	be found. It will be added to C<@INC> automatically.	118	be found. It will be added to C<@INC> automatically.
52		119
		120	=item $cf::NOW
		121
		122	The time of the last (current) server tick.
		123
53	=item $cf::TICK	124	=item $cf::TICK
54		125
55	The interval between server ticks, in seconds.	126	The interval between server ticks, in seconds.
56		127
57	=item %cf::CFG	128	=item %cf::CFG
58		129
59	Configuration for the server, loaded from C</etc/crossfire/config>, or	130	Configuration for the server, loaded from C</etc/crossfire/config>, or
60	from wherever your confdir points to.	131	from wherever your confdir points to.
		132
		133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		134
		135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		137	processing has been done. Call C<< ->wait >> on them to maximise the
		138	window of cpu time available, or simply to synchronise to the server tick.
61		139
62	=back	140	=back
63		141
64	=cut	142	=cut
65		143
66	BEGIN {	144	BEGIN {
67	*CORE::GLOBAL::warn = sub {	145	*CORE::GLOBAL::warn = sub {
68	my $msg = join "", @_;	146	my $msg = join "", @_;
		147	utf8::encode $msg;
		148
69	$msg .= "\n"	149	$msg .= "\n"
70	unless $msg =~ /\n$/;	150	unless $msg =~ /\n$/;
71		151
72	print STDERR "cfperl: $msg";
73	LOG llevError, "cfperl: $msg";	152	LOG llevError, $msg;
74	};	153	};
75	}	154	}
76		155
		156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
		157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
		158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
		159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
		160	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
77	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	161	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
78		162
79	# we bless all objects into (empty) derived classes to force a method lookup	163	# we bless all objects into (empty) derived classes to force a method lookup
80	# within the Safe compartment.	164	# within the Safe compartment.
81	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {	165	for my $pkg (qw(
		166	cf::global cf::attachable
		167	cf::object cf::object::player
		168	cf::client cf::player
		169	cf::arch cf::living
		170	cf::map cf::party cf::region
		171	)) {
82	no strict 'refs';	172	no strict 'refs';
83	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	173	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
84	}	174	}
85		175
86	$Event::DIED = sub {	176	$Event::DIED = sub {
87	warn "error in event callback: @_";	177	warn "error in event callback: @_";
88	};	178	};
89		179
90	my %ext_pkg;
91	my @exts;
92	my @hook;
93
94	=head2 UTILITY FUNCTIONS	180	=head2 UTILITY FUNCTIONS
95		181
96	=over 4	182	=over 4
97		183
		184	=item dumpval $ref
		185
98	=cut	186	=cut
		187
		188	sub dumpval {
		189	eval {
		190	local $SIG{__DIE__};
		191	my $d;
		192	if (1) {
		193	$d = new Data::Dumper([$_[0]], ["*var"]);
		194	$d->Terse(1);
		195	$d->Indent(2);
		196	$d->Quotekeys(0);
		197	$d->Useqq(1);
		198	#$d->Bless(...);
		199	$d->Seen($_[1]) if @_ > 1;
		200	$d = $d->Dump();
		201	}
		202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		203	$d
		204	} || "[unable to dump $_[0]: '$@']";
		205	}
99		206
100	use JSON::Syck (); # TODO# replace by JSON::PC once working	207	use JSON::Syck (); # TODO# replace by JSON::PC once working
101		208
102	=item $ref = cf::from_json $json	209	=item $ref = cf::from_json $json
103		210
…		…
119	sub to_json($) {	226	sub to_json($) {
120	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
121	JSON::Syck::Dump $_[0]	228	JSON::Syck::Dump $_[0]
122	}	229	}
123		230
		231	=item cf::lock_wait $string
		232
		233	Wait until the given lock is available. See cf::lock_acquire.
		234
		235	=item my $lock = cf::lock_acquire $string
		236
		237	Wait until the given lock is available and then acquires it and returns
		238	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		239	for example when the coroutine gets canceled), the lock is automatically
		240	returned.
		241
		242	Lock names should begin with a unique identifier (for example, cf::map::find
		243	uses map_find and cf::map::load uses map_load).
		244
		245	=cut
		246
		247	our %LOCK;
		248
		249	sub lock_wait($) {
		250	my ($key) = @_;
		251
		252	# wait for lock, if any
		253	while ($LOCK{$key}) {
		254	push @{ $LOCK{$key} }, $Coro::current;
		255	Coro::schedule;
		256	}
		257	}
		258
		259	sub lock_acquire($) {
		260	my ($key) = @_;
		261
		262	# wait, to be sure we are not locked
		263	lock_wait $key;
		264
		265	$LOCK{$key} = [];
		266
		267	Coro::guard {
		268	# wake up all waiters, to be on the safe side
		269	$_->ready for @{ delete $LOCK{$key} };
		270	}
		271	}
		272
		273	sub freeze_mainloop {
		274	return unless $TICK_WATCHER->is_active;
		275
		276	my $guard = Coro::guard {
		277	$TICK_WATCHER->start;
		278	};
		279	$TICK_WATCHER->stop;
		280	$guard
		281	}
		282
		283	=item cf::async { BLOCK }
		284
		285	Currently the same as Coro::async_pool, meaning you cannot use
		286	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		287	thing you are allowed to do is call C<prio> on it.
		288
		289	=cut
		290
		291	BEGIN { *async = \&Coro::async_pool }
		292
		293	=item cf::sync_job { BLOCK }
		294
		295	The design of crossfire+ requires that the main coro ($Coro::main) is
		296	always able to handle events or runnable, as crossfire+ is only partly
		297	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		298
		299	If it must be done, put the blocking parts into C<sync_job>. This will run
		300	the given BLOCK in another coroutine while waiting for the result. The
		301	server will be frozen during this time, so the block should either finish
		302	fast or be very important.
		303
		304	=cut
		305
		306	sub sync_job(&) {
		307	my ($job) = @_;
		308
		309	if ($Coro::current == $Coro::main) {
		310	# this is the main coro, too bad, we have to block
		311	# till the operation succeeds, freezing the server :/
		312
		313	# TODO: use suspend/resume instead
		314	# (but this is cancel-safe)
		315	my $freeze_guard = freeze_mainloop;
		316
		317	my $busy = 1;
		318	my @res;
		319
		320	(async {
		321	@res = eval { $job->() };
		322	warn $@ if $@;
		323	undef $busy;
		324	})->prio (Coro::PRIO_MAX);
		325
		326	while ($busy) {
		327	Coro::cede or Event::one_event;
		328	}
		329
		330	wantarray ? @res : $res[0]
		331	} else {
		332	# we are in another coroutine, how wonderful, everything just works
		333
		334	$job->()
		335	}
		336	}
		337
		338	=item $coro = cf::async_ext { BLOCK }
		339
		340	Like async, but this coro is automatically being canceled when the
		341	extension calling this is being unloaded.
		342
		343	=cut
		344
		345	sub async_ext(&) {
		346	my $cb = shift;
		347
		348	my $coro = &Coro::async ($cb);
		349
		350	$coro->on_destroy (sub {
		351	delete $EXT_CORO{$coro+0};
		352	});
		353	$EXT_CORO{$coro+0} = $coro;
		354
		355	$coro
		356	}
		357
		358	sub write_runtime {
		359	my $guard = cf::lock_acquire "write_runtime";
		360
		361	my $runtime = cf::localdir . "/runtime";
		362
		363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		364	or return;
		365
		366	my $value = $cf::RUNTIME + 90 + 10;
		367	# 10 is the runtime save interval, for a monotonic clock
		368	# 60 allows for the watchdog to kill the server.
		369
		370	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		371	and return;
		372
		373	# always fsync - this file is important
		374	aio_fsync $fh
		375	and return;
		376
		377	close $fh
		378	or return;
		379
		380	aio_rename "$runtime~", $runtime
		381	and return;
		382
		383	1
		384	}
		385
124	=back	386	=back
125		387
126	=cut	388	=cut
127		389
128	#############################################################################	390	#############################################################################
129		391
130	=head2 EVENTS AND OBJECT ATTACHMENTS	392	=head2 ATTACHABLE OBJECTS
		393
		394	Many objects in crossfire are so-called attachable objects. That means you can
		395	attach callbacks/event handlers (a collection of which is called an "attachment")
		396	to it. All such attachable objects support the following methods.
		397
		398	In the following description, CLASS can be any of C<global>, C<object>
		399	C<player>, C<client> or C<map> (i.e. the attachable objects in
		400	crossfire+).
131		401
132	=over 4	402	=over 4
133		403
134	=item $object->attach ($attachment, key => $value...)
135
136	=item $object->detach ($attachment)
137
138	Attach/detach a pre-registered attachment to an object.
139
140	=item $player->attach ($attachment, key => $value...)
141
142	=item $player->detach ($attachment)
143
144	Attach/detach a pre-registered attachment to a player.
145
146	=item $map->attach ($attachment, key => $value...)	404	=item $attachable->attach ($attachment, key => $value...)
147		405
148	=item $map->detach ($attachment)	406	=item $attachable->detach ($attachment)
149		407
150	Attach/detach a pre-registered attachment to a map.	408	Attach/detach a pre-registered attachment to a specific object and give it
		409	the specified key/value pairs as arguments.
151		410
152	=item $bool = $object->attached ($name)	411	Example, attach a minesweeper attachment to the given object, making it a
		412	10x10 minesweeper game:
153		413
154	=item $bool = $player->attached ($name)	414	$obj->attach (minesweeper => width => 10, height => 10);
155		415
156	=item $bool = $map->attached ($name)	416	=item $bool = $attachable->attached ($name)
157		417
158	Checks wether the named attachment is currently attached to the object.	418	Checks wether the named attachment is currently attached to the object.
159		419
160	=item cf::attach_global ...	420	=item cf::CLASS->attach ...
161		421
162	Attach handlers for global events.	422	=item cf::CLASS->detach ...
163		423
164	This and all following C<attach_*>-functions expect any number of the	424	Define an anonymous attachment and attach it to all objects of the given
165	following handler/hook descriptions:	425	CLASS. See the next function for an explanation of its arguments.
		426
		427	You can attach to global events by using the C<cf::global> class.
		428
		429	Example, log all player logins:
		430
		431	cf::player->attach (
		432	on_login => sub {
		433	my ($pl) = @_;
		434	...
		435	},
		436	);
		437
		438	Example, attach to the jeweler skill:
		439
		440	cf::object->attach (
		441	type => cf::SKILL,
		442	subtype => cf::SK_JEWELER,
		443	on_use_skill => sub {
		444	my ($sk, $ob, $part, $dir, $msg) = @_;
		445	...
		446	},
		447	);
		448
		449	=item cf::CLASS::attachment $name, ...
		450
		451	Register an attachment by C<$name> through which attachable objects of the
		452	given CLASS can refer to this attachment.
		453
		454	Some classes such as crossfire maps and objects can specify attachments
		455	that are attached at load/instantiate time, thus the need for a name.
		456
		457	These calls expect any number of the following handler/hook descriptions:
166		458
167	=over 4	459	=over 4
168		460
169	=item prio => $number	461	=item prio => $number
170		462
…		…
172	by another C<prio> setting). Lower priority handlers get executed	464	by another C<prio> setting). Lower priority handlers get executed
173	earlier. The default priority is C<0>, and many built-in handlers are	465	earlier. The default priority is C<0>, and many built-in handlers are
174	registered at priority C<-1000>, so lower priorities should not be used	466	registered at priority C<-1000>, so lower priorities should not be used
175	unless you know what you are doing.	467	unless you know what you are doing.
176		468
		469	=item type => $type
		470
		471	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		472	given type of objects only (the additional parameter C<subtype> can be
		473	used to further limit to the given subtype).
		474
177	=item on_I<event> => \&cb	475	=item on_I<event> => \&cb
178		476
179	Call the given code reference whenever the named event happens (event is	477	Call the given code reference whenever the named event happens (event is
180	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	478	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
181	handlers are recognised generally depends on the type of object these	479	handlers are recognised generally depends on the type of object these
…		…
190	package and register them. Only handlers for eevents supported by the	488	package and register them. Only handlers for eevents supported by the
191	object/class are recognised.	489	object/class are recognised.
192		490
193	=back	491	=back
194		492
195	=item cf::attach_to_type $object_type, $subtype, ...	493	Example, define an attachment called "sockpuppet" that calls the given
		494	event handler when a monster attacks:
196		495
197	Attach handlers for a specific object type (e.g. TRANSPORT) and	496	cf::object::attachment sockpuppet =>
198	subtype. If C<$subtype> is zero or undef, matches all objects of the given	497	on_skill_attack => sub {
199	type.	498	my ($self, $victim) = @_;
200		499	...
201	=item cf::attach_to_objects ...
202
203	Attach handlers to all objects. Do not use this except for debugging or
204	very rare events, as handlers are (obviously) called for I<all> objects in
205	the game.
206
207	=item cf::attach_to_players ...
208
209	Attach handlers to all players.
210
211	=item cf::attach_to_maps ...
212
213	Attach handlers to all maps.
214
215	=item cf:register_attachment $name, ...
216
217	Register an attachment by name through which objects can refer to this
218	attachment.
219
220	=item cf:register_player_attachment $name, ...
221
222	Register an attachment by name through which players can refer to this
223	attachment.
224
225	=item cf:register_map_attachment $name, ...
226
227	Register an attachment by name through which maps can refer to this
228	attachment.
229
230	=cut
231
232	# the following variables are defined in .xs and must not be re-created
233	our @CB_GLOBAL = (); # registry for all global events
234	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
235	our @CB_PLAYER = ();
236	our @CB_TYPE = (); # registry for type (cf-object class) based events
237	our @CB_MAP = ();
238
239	my %attachment;
240
241	sub _attach_cb($\%$$$) {
242	my ($registry, $undo, $event, $prio, $cb) = @_;
243
244	use sort 'stable';
245
246	$cb = [$prio, $cb];
247
248	@{$registry->[$event]} = sort
249	{ $a->[0] cmp $b->[0] }
250	@{$registry->[$event] || []}, $cb;
251
252	push @{$undo->{cb}}, [$event, $cb];
253	}
254
255	# attach handles attaching event callbacks
256	# the only thing the caller has to do is pass the correct
257	# registry (== where the callback attaches to).
258	sub _attach(\@$@) {
259	my ($registry, $klass, @arg) = @_;
260
261	my $prio = 0;
262
263	my %undo = (
264	registry => $registry,
265	cb => [],
266	);
267
268	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
269
270	while (@arg) {
271	my $type = shift @arg;
272
273	if ($type eq "prio") {
274	$prio = shift @arg;
275
276	} elsif ($type eq "package") {
277	my $pkg = shift @arg;
278
279	while (my ($name, $id) = each %cb_id) {
280	if (my $cb = $pkg->can ($name)) {
281	_attach_cb $registry, %undo, $id, $prio, $cb;
282	}
283	}	500	}
284
285	} elsif (exists $cb_id{$type}) {
286	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
287
288	} elsif (ref $type) {
289	warn "attaching objects not supported, ignoring.\n";
290
291	} else {
292	shift @arg;
293	warn "attach argument '$type' not supported, ignoring.\n";
294	}
295	}
296
297	\%undo
298	}
299
300	sub _attach_attachment {
301	my ($obj, $name, %arg) = @_;
302
303	return if exists $obj->{_attachment}{$name};
304
305	my $res;
306
307	if (my $attach = $attachment{$name}) {
308	my $registry = $obj->registry;
309
310	for (@$attach) {
311	my ($klass, @attach) = @$_;
312	$res = _attach @$registry, $klass, @attach;
313	}
314
315	$obj->{$name} = \%arg;
316	} else {
317	warn "object uses attachment '$name' that is not available, postponing.\n";
318	}
319
320	$obj->{_attachment}{$name} = undef;
321
322	$res->{attachment} = $name;
323	$res
324	}
325
326	*cf::object::attach =
327	*cf::player::attach =
328	*cf::map::attach = sub {
329	my ($obj, $name, %arg) = @_;
330
331	_attach_attachment $obj, $name, %arg;
332	};
333
334	# all those should be optimised
335	*cf::object::detach =
336	*cf::player::detach =
337	*cf::map::detach = sub {
338	my ($obj, $name) = @_;
339
340	delete $obj->{_attachment}{$name};
341	reattach ($obj);
342	};
343
344	*cf::object::attached =
345	*cf::player::attached =
346	*cf::map::attached = sub {
347	my ($obj, $name) = @_;
348
349	exists $obj->{_attachment}{$name}
350	};
351
352	sub attach_global {
353	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
354	}
355
356	sub attach_to_type {
357	my $type = shift;
358	my $subtype = shift;
359
360	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
361	}
362
363	sub attach_to_objects {
364	_attach @CB_OBJECT, KLASS_OBJECT, @_
365	}
366
367	sub attach_to_players {
368	_attach @CB_PLAYER, KLASS_PLAYER, @_
369	}
370
371	sub attach_to_maps {
372	_attach @CB_MAP, KLASS_MAP, @_
373	}
374
375	sub register_attachment {
376	my $name = shift;
377
378	$attachment{$name} = [[KLASS_OBJECT, @_]];
379	}
380
381	sub register_player_attachment {
382	my $name = shift;
383
384	$attachment{$name} = [[KLASS_PLAYER, @_]];
385	}
386
387	sub register_map_attachment {
388	my $name = shift;
389
390	$attachment{$name} = [[KLASS_MAP, @_]];
391	}
392
393	our $override;
394	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
395
396	sub override {
397	$override = 1;
398	@invoke_results = ();
399	}
400
401	sub do_invoke {
402	my $event = shift;
403	my $callbacks = shift;
404
405	@invoke_results = ();
406
407	local $override;
408
409	for (@$callbacks) {
410	eval { &{$_->[1]} };
411
412	if ($@) {
413	warn "$@";
414	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
415	override;
416	}
417
418	return 1 if $override;
419	}
420
421	0	501	}
422	}
423		502
424	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	503	=item $attachable->valid
425
426	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
427
428	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
429
430	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
431
432	Generate a global/object/player/map-specific event with the given arguments.
433
434	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
435	removed in future versions), and there is no public API to access override
436	results (if you must, access C<@cf::invoke_results> directly).
437
438	=back
439
440	=cut
441
442	#############################################################################
443
444	=head2 METHODS VALID FOR ALL CORE OBJECTS
445
446	=over 4
447
448	=item $object->valid, $player->valid, $map->valid
449		504
450	Just because you have a perl object does not mean that the corresponding	505	Just because you have a perl object does not mean that the corresponding
451	C-level object still exists. If you try to access an object that has no	506	C-level object still exists. If you try to access an object that has no
452	valid C counterpart anymore you get an exception at runtime. This method	507	valid C counterpart anymore you get an exception at runtime. This method
453	can be used to test for existence of the C object part without causing an	508	can be used to test for existence of the C object part without causing an
454	exception.	509	exception.
455		510
		511	=cut
		512
		513	# the following variables are defined in .xs and must not be re-created
		514	our @CB_GLOBAL = (); # registry for all global events
		515	our @CB_ATTACHABLE = (); # registry for all attachables
		516	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		517	our @CB_PLAYER = ();
		518	our @CB_CLIENT = ();
		519	our @CB_TYPE = (); # registry for type (cf-object class) based events
		520	our @CB_MAP = ();
		521
		522	my %attachment;
		523
		524	sub cf::attachable::thawer_merge {
		525	# simply override everything except _meta
		526	local $_[0]{_meta};
		527	%{$_[0]} = %{$_[1]};
		528	}
		529
		530	sub _attach_cb($$$$) {
		531	my ($registry, $event, $prio, $cb) = @_;
		532
		533	use sort 'stable';
		534
		535	$cb = [$prio, $cb];
		536
		537	@{$registry->[$event]} = sort
		538	{ $a->[0] cmp $b->[0] }
		539	@{$registry->[$event] || []}, $cb;
		540	}
		541
		542	# hack
		543	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		544
		545	# attach handles attaching event callbacks
		546	# the only thing the caller has to do is pass the correct
		547	# registry (== where the callback attaches to).
		548	sub _attach {
		549	my ($registry, $klass, @arg) = @_;
		550
		551	my $object_type;
		552	my $prio = 0;
		553	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		554
		555	#TODO: get rid of this hack
		556	if ($attachable_klass{$klass}) {
		557	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		558	}
		559
		560	while (@arg) {
		561	my $type = shift @arg;
		562
		563	if ($type eq "prio") {
		564	$prio = shift @arg;
		565
		566	} elsif ($type eq "type") {
		567	$object_type = shift @arg;
		568	$registry = $CB_TYPE[$object_type] ||= [];
		569
		570	} elsif ($type eq "subtype") {
		571	defined $object_type or Carp::croak "subtype specified without type";
		572	my $object_subtype = shift @arg;
		573	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		574
		575	} elsif ($type eq "package") {
		576	my $pkg = shift @arg;
		577
		578	while (my ($name, $id) = each %cb_id) {
		579	if (my $cb = $pkg->can ($name)) {
		580	_attach_cb $registry, $id, $prio, $cb;
		581	}
		582	}
		583
		584	} elsif (exists $cb_id{$type}) {
		585	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		586
		587	} elsif (ref $type) {
		588	warn "attaching objects not supported, ignoring.\n";
		589
		590	} else {
		591	shift @arg;
		592	warn "attach argument '$type' not supported, ignoring.\n";
		593	}
		594	}
		595	}
		596
		597	sub _object_attach {
		598	my ($obj, $name, %arg) = @_;
		599
		600	return if exists $obj->{_attachment}{$name};
		601
		602	if (my $attach = $attachment{$name}) {
		603	my $registry = $obj->registry;
		604
		605	for (@$attach) {
		606	my ($klass, @attach) = @$_;
		607	_attach $registry, $klass, @attach;
		608	}
		609
		610	$obj->{$name} = \%arg;
		611	} else {
		612	warn "object uses attachment '$name' that is not available, postponing.\n";
		613	}
		614
		615	$obj->{_attachment}{$name} = undef;
		616	}
		617
		618	sub cf::attachable::attach {
		619	if (ref $_[0]) {
		620	_object_attach @_;
		621	} else {
		622	_attach shift->_attach_registry, @_;
		623	}
		624	};
		625
		626	# all those should be optimised
		627	sub cf::attachable::detach {
		628	my ($obj, $name) = @_;
		629
		630	if (ref $obj) {
		631	delete $obj->{_attachment}{$name};
		632	reattach ($obj);
		633	} else {
		634	Carp::croak "cannot, currently, detach class attachments";
		635	}
		636	};
		637
		638	sub cf::attachable::attached {
		639	my ($obj, $name) = @_;
		640
		641	exists $obj->{_attachment}{$name}
		642	}
		643
		644	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		645	eval "#line " . __LINE__ . " 'cf.pm'
		646	sub cf::\L$klass\E::_attach_registry {
		647	(\\\@CB_$klass, KLASS_$klass)
		648	}
		649
		650	sub cf::\L$klass\E::attachment {
		651	my \$name = shift;
		652
		653	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		654	}
		655	";
		656	die if $@;
		657	}
		658
		659	our $override;
		660	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		661
		662	sub override {
		663	$override = 1;
		664	@invoke_results = ();
		665	}
		666
		667	sub do_invoke {
		668	my $event = shift;
		669	my $callbacks = shift;
		670
		671	@invoke_results = ();
		672
		673	local $override;
		674
		675	for (@$callbacks) {
		676	eval { &{$_->[1]} };
		677
		678	if ($@) {
		679	warn "$@";
		680	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		681	override;
		682	}
		683
		684	return 1 if $override;
		685	}
		686
		687	0
		688	}
		689
		690	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		691
		692	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		693
		694	Generate an object-specific event with the given arguments.
		695
		696	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		697	removed in future versions), and there is no public API to access override
		698	results (if you must, access C<@cf::invoke_results> directly).
		699
456	=back	700	=back
457		701
458	=cut	702	=cut
459
460	*cf::object::valid =
461	*cf::player::valid =
462	*cf::map::valid = \&cf::_valid;
463		703
464	#############################################################################	704	#############################################################################
465	# object support	705	# object support
466		706
467	sub instantiate {
468	my ($obj, $data) = @_;
469
470	$data = from_json $data;
471
472	for (@$data) {
473	my ($name, $args) = @$_;
474
475	$obj->attach ($name, %{$args || {} });
476	}
477	}
478
479	# basically do the same as instantiate, without calling instantiate
480	sub reattach {	707	sub reattach {
		708	# basically do the same as instantiate, without calling instantiate
481	my ($obj) = @_;	709	my ($obj) = @_;
		710
		711	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		712
482	my $registry = $obj->registry;	713	my $registry = $obj->registry;
483		714
484	@$registry = ();	715	@$registry = ();
485		716
486	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	717	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
487		718
488	for my $name (keys %{ $obj->{_attachment} || {} }) {	719	for my $name (keys %{ $obj->{_attachment} || {} }) {
489	if (my $attach = $attachment{$name}) {	720	if (my $attach = $attachment{$name}) {
490	for (@$attach) {	721	for (@$attach) {
491	my ($klass, @attach) = @$_;	722	my ($klass, @attach) = @$_;
492	_attach @$registry, $klass, @attach;	723	_attach $registry, $klass, @attach;
493	}	724	}
494	} else {	725	} else {
495	warn "object uses attachment '$name' that is not available, postponing.\n";	726	warn "object uses attachment '$name' that is not available, postponing.\n";
496	}	727	}
497	}	728	}
498	}	729	}
499		730
500	sub object_freezer_save {	731	cf::attachable->attach (
501	my ($filename, $rdata, $objs) = @_;
502
503	if (length $$rdata) {
504	warn sprintf "saving %s (%d,%d)\n",
505	$filename, length $$rdata, scalar @$objs;
506
507	if (open my $fh, ">:raw", "$filename~") {
508	chmod SAVE_MODE, $fh;
509	syswrite $fh, $$rdata;
510	close $fh;
511
512	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
513	chmod SAVE_MODE, $fh;
514	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
515	close $fh;
516	rename "$filename.pst~", "$filename.pst";
517	} else {
518	unlink "$filename.pst";
519	}
520
521	rename "$filename~", $filename;
522	} else {
523	warn "FATAL: $filename~: $!\n";
524	}
525	} else {
526	unlink $filename;
527	unlink "$filename.pst";
528	}
529	}
530
531	sub object_freezer_as_string {
532	my ($rdata, $objs) = @_;
533
534	use Data::Dumper;
535
536	$$rdata . Dumper $objs
537	}
538
539	sub object_thawer_load {
540	my ($filename) = @_;
541
542	local $/;
543
544	my $av;
545
546	#TODO: use sysread etc.
547	if (open my $data, "<:raw:perlio", $filename) {
548	$data = <$data>;
549	if (open my $pst, "<:raw:perlio", "$filename.pst") {
550	$av = eval { (Storable::thaw <$pst>)->{objs} };
551	}
552	return ($data, $av);
553	}
554
555	()
556	}
557
558	attach_to_objects
559	prio => -1000000,	732	prio => -1000000,
		733	on_instantiate => sub {
		734	my ($obj, $data) = @_;
		735
		736	$data = from_json $data;
		737
		738	for (@$data) {
		739	my ($name, $args) = @$_;
		740
		741	$obj->attach ($name, %{$args || {} });
		742	}
		743	},
		744	on_reattach => \&reattach,
560	on_clone => sub {	745	on_clone => sub {
561	my ($src, $dst) = @_;	746	my ($src, $dst) = @_;
562		747
563	@{$dst->registry} = @{$src->registry};	748	@{$dst->registry} = @{$src->registry};
564		749
565	%$dst = %$src;	750	%$dst = %$src;
566		751
567	%{$dst->{_attachment}} = %{$src->{_attachment}}	752	%{$dst->{_attachment}} = %{$src->{_attachment}}
568	if exists $src->{_attachment};	753	if exists $src->{_attachment};
569	},	754	},
570	;	755	);
		756
		757	sub object_freezer_save {
		758	my ($filename, $rdata, $objs) = @_;
		759
		760	sync_job {
		761	if (length $$rdata) {
		762	warn sprintf "saving %s (%d,%d)\n",
		763	$filename, length $$rdata, scalar @$objs;
		764
		765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		766	chmod SAVE_MODE, $fh;
		767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		768	aio_fsync $fh if $cf::USE_FSYNC;
		769	close $fh;
		770
		771	if (@$objs) {
		772	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		773	chmod SAVE_MODE, $fh;
		774	my $data = Storable::nfreeze { version => 1, objs => $objs };
		775	aio_write $fh, 0, (length $data), $data, 0;
		776	aio_fsync $fh if $cf::USE_FSYNC;
		777	close $fh;
		778	aio_rename "$filename.pst~", "$filename.pst";
		779	}
		780	} else {
		781	aio_unlink "$filename.pst";
		782	}
		783
		784	aio_rename "$filename~", $filename;
		785	} else {
		786	warn "FATAL: $filename~: $!\n";
		787	}
		788	} else {
		789	aio_unlink $filename;
		790	aio_unlink "$filename.pst";
		791	}
		792	}
		793	}
		794
		795	sub object_freezer_as_string {
		796	my ($rdata, $objs) = @_;
		797
		798	use Data::Dumper;
		799
		800	$$rdata . Dumper $objs
		801	}
		802
		803	sub object_thawer_load {
		804	my ($filename) = @_;
		805
		806	my ($data, $av);
		807
		808	(aio_load $filename, $data) >= 0
		809	or return;
		810
		811	unless (aio_stat "$filename.pst") {
		812	(aio_load "$filename.pst", $av) >= 0
		813	or return;
		814	$av = eval { (Storable::thaw $av)->{objs} };
		815	}
		816
		817	warn sprintf "loading %s (%d)\n",
		818	$filename, length $data, scalar @{$av || []};#d#
		819	return ($data, $av);
		820	}
571		821
572	#############################################################################	822	#############################################################################
573	# command handling &c	823	# command handling &c
574		824
575	=item cf::register_command $name => \&callback($ob,$args);	825	=item cf::register_command $name => \&callback($ob,$args);
…		…
598	=cut	848	=cut
599		849
600	sub register_extcmd {	850	sub register_extcmd {
601	my ($name, $cb) = @_;	851	my ($name, $cb) = @_;
602		852
603	my $caller = caller;
604	#warn "registering extcmd '$name' to '$caller'";
605
606	$EXTCMD{$name} = [$cb, $caller];	853	$EXTCMD{$name} = $cb;
607	}	854	}
608		855
609	attach_to_players	856	cf::player->attach (
610	on_command => sub {	857	on_command => sub {
611	my ($pl, $name, $params) = @_;	858	my ($pl, $name, $params) = @_;
612		859
613	my $cb = $COMMAND{$name}	860	my $cb = $COMMAND{$name}
614	or return;	861	or return;
…		…
624		871
625	my $msg = eval { from_json $buf };	872	my $msg = eval { from_json $buf };
626		873
627	if (ref $msg) {	874	if (ref $msg) {
628	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
629	if (my %reply = $cb->[0]->($pl, $msg)) {	876	if (my %reply = $cb->($pl, $msg)) {
630	$pl->ext_reply ($msg->{msgid}, %reply);	877	$pl->ext_reply ($msg->{msgid}, %reply);
631	}	878	}
632	}	879	}
633	} else {	880	} else {
634	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	881	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
635	}	882	}
636		883
637	cf::override;	884	cf::override;
638	},	885	},
639	;	886	);
640
641	sub register {
642	my ($base, $pkg) = @_;
643
644	#TODO
645	}
646		887
647	sub load_extension {	888	sub load_extension {
648	my ($path) = @_;	889	my ($path) = @_;
649		890
650	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
651	my $base = $1;	892	my $base = $1;
652	my $pkg = $1;	893	my $pkg = $1;
653	$pkg =~ s/[^[:word:]]/_/g;	894	$pkg =~ s/[^[:word:]]/_/g;
654	$pkg = "ext::$pkg";	895	$pkg = "ext::$pkg";
655		896
656	warn "loading '$path' into '$pkg'\n";	897	warn "... loading '$path' into '$pkg'\n";
657		898
658	open my $fh, "<:utf8", $path	899	open my $fh, "<:utf8", $path
659	or die "$path: $!";	900	or die "$path: $!";
660		901
661	my $source =	902	my $source =
662	"package $pkg; use strict; use utf8;\n"	903	"package $pkg; use strict; use utf8;\n"
663	. "#line 1 \"$path\"\n{\n"	904	. "#line 1 \"$path\"\n{\n"
664	. (do { local $/; <$fh> })	905	. (do { local $/; <$fh> })
665	. "\n};\n1";	906	. "\n};\n1";
666		907
667	eval $source	908	unless (eval $source) {
668	or die $@ ? "$path: $@\n"	909	my $msg = $@ ? "$path: $@\n"
669	: "extension disabled.\n";	910	: "extension disabled.\n";
670		911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
671	push @exts, $pkg;	912	warn $@;
672	$ext_pkg{$base} = $pkg;	913	warn "mandatory extension failed to load, exiting.\n";
673		914	exit 1;
674	# no strict 'refs';	915	}
675	# @{"$pkg\::ISA"} = ext::;	916	die $@;
676
677	register $base, $pkg;
678	}
679
680	sub unload_extension {
681	my ($pkg) = @_;
682
683	warn "removing extension $pkg\n";
684
685	# remove hooks
686	#TODO
687	# for my $idx (0 .. $#PLUGIN_EVENT) {
688	# delete $hook[$idx]{$pkg};
689	# }	917	}
690		918
691	# remove commands	919	push @EXTS, $pkg;
692	for my $name (keys %COMMAND) {
693	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
694
695	if (@cb) {
696	$COMMAND{$name} = \@cb;
697	} else {
698	delete $COMMAND{$name};
699	}
700	}
701
702	# remove extcmds
703	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
704	delete $EXTCMD{$name};
705	}
706
707	if (my $cb = $pkg->can ("unload")) {
708	eval {
709	$cb->($pkg);
710	1
711	} or warn "$pkg unloaded, but with errors: $@";
712	}
713
714	Symbol::delete_package $pkg;
715	}	920	}
716		921
717	sub load_extensions {	922	sub load_extensions {
718	my $LIBDIR = maps_directory "perl";
719
720	for my $ext (<$LIBDIR/*.ext>) {	923	for my $ext (<$LIBDIR/*.ext>) {
721	next unless -r $ext;	924	next unless -r $ext;
722	eval {	925	eval {
723	load_extension $ext;	926	load_extension $ext;
724	1	927	1
725	} or warn "$ext not loaded: $@";	928	} or warn "$ext not loaded: $@";
726	}	929	}
727	}	930	}
728		931
729	#############################################################################	932	#############################################################################
730	# load/save/clean perl data associated with a map
731		933
732	*cf::mapsupport::on_clean = sub {	934	=head2 CORE EXTENSIONS
		935
		936	Functions and methods that extend core crossfire objects.
		937
		938	=cut
		939
		940	package cf::player;
		941
		942	use Coro::AIO;
		943
		944	=head3 cf::player
		945
		946	=over 4
		947
		948	=item cf::player::find $login
		949
		950	Returns the given player object, loading it if necessary (might block).
		951
		952	=cut
		953
		954	sub playerdir($) {
		955	cf::localdir
		956	. "/"
		957	. cf::playerdir
		958	. "/"
		959	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		960	}
		961
		962	sub path($) {
		963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		964
		965	(playerdir $login) . "/$login.pl"
		966	}
		967
		968	sub find_active($) {
		969	$cf::PLAYER{$_[0]}
		970	and $cf::PLAYER{$_[0]}->active
		971	and $cf::PLAYER{$_[0]}
		972	}
		973
		974	sub exists($) {
		975	my ($login) = @_;
		976
		977	$cf::PLAYER{$login}
		978	or cf::sync_job { !aio_stat path $login }
		979	}
		980
		981	sub find($) {
		982	return $cf::PLAYER{$_[0]} || do {
		983	my $login = $_[0];
		984
		985	my $guard = cf::lock_acquire "user_find:$login";
		986
		987	$cf::PLAYER{$_[0]} || do {
		988	my $pl = load_pl path $login
		989	or return;
		990	$cf::PLAYER{$login} = $pl
		991	}
		992	}
		993	}
		994
		995	sub save($) {
		996	my ($pl) = @_;
		997
		998	return if $pl->{deny_save};
		999
		1000	my $path = path $pl;
		1001	my $guard = cf::lock_acquire "user_save:$path";
		1002
		1003	return if $pl->{deny_save};
		1004
		1005	aio_mkdir playerdir $pl, 0770;
		1006	$pl->{last_save} = $cf::RUNTIME;
		1007
		1008	$pl->save_pl ($path);
		1009	Coro::cede;
		1010	}
		1011
		1012	sub new($) {
		1013	my ($login) = @_;
		1014
		1015	my $self = create;
		1016
		1017	$self->ob->name ($login);
		1018	$self->{deny_save} = 1;
		1019
		1020	$cf::PLAYER{$login} = $self;
		1021
		1022	$self
		1023	}
		1024
		1025	=item $pl->quit_character
		1026
		1027	Nukes the player without looking back. If logged in, the connection will
		1028	be destroyed. May block for a long time.
		1029
		1030	=cut
		1031
		1032	sub quit_character {
		1033	my ($pl) = @_;
		1034
		1035	$pl->{deny_save} = 1;
		1036	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1037
		1038	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1039	$pl->deactivate;
		1040	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1041	$pl->ns->destroy if $pl->ns;
		1042
		1043	my $path = playerdir $pl;
		1044	my $temp = "$path~$cf::RUNTIME~deleting~";
		1045	aio_rename $path, $temp;
		1046	delete $cf::PLAYER{$pl->ob->name};
		1047	$pl->destroy;
		1048	IO::AIO::aio_rmtree $temp;
		1049	}
		1050
		1051	=item cf::player::list_logins
		1052
		1053	Returns am arrayref of all valid playernames in the system, can take a
		1054	while and may block, so not sync_job-capable, ever.
		1055
		1056	=cut
		1057
		1058	sub list_logins {
		1059	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1060	or return [];
		1061
		1062	my @logins;
		1063
		1064	for my $login (@$dirs) {
		1065	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1066	aio_read $fh, 0, 512, my $buf, 0 or next;
		1067	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1068
		1069	utf8::decode $login;
		1070	push @logins, $login;
		1071	}
		1072
		1073	\@logins
		1074	}
		1075
		1076	=item $player->maps
		1077
		1078	Returns an arrayref of map paths that are private for this
		1079	player. May block.
		1080
		1081	=cut
		1082
		1083	sub maps($) {
		1084	my ($pl) = @_;
		1085
		1086	$pl = ref $pl ? $pl->ob->name : $pl;
		1087
		1088	my $files = aio_readdir playerdir $pl
		1089	or return;
		1090
		1091	my @paths;
		1092
		1093	for (@$files) {
		1094	utf8::decode $_;
		1095	next if /\.(?:pl|pst)$/;
		1096	next unless /^$PATH_SEP/o;
		1097
		1098	push @paths, cf::map::normalise "~$pl/$_";
		1099	}
		1100
		1101	\@paths
		1102	}
		1103
		1104	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1105
		1106	Sends an ext reply to the player.
		1107
		1108	=cut
		1109
		1110	sub ext_reply($$$%) {
		1111	my ($self, $id, %msg) = @_;
		1112
		1113	$msg{msgid} = $id;
		1114
		1115	$self->send ("ext " . cf::to_json \%msg);
		1116	}
		1117
		1118	package cf;
		1119
		1120	=back
		1121
		1122
		1123	=head3 cf::map
		1124
		1125	=over 4
		1126
		1127	=cut
		1128
		1129	package cf::map;
		1130
		1131	use Fcntl;
		1132	use Coro::AIO;
		1133
		1134	use overload
		1135	'""' => \&as_string,
		1136	fallback => 1;
		1137
		1138	our $MAX_RESET = 3600;
		1139	our $DEFAULT_RESET = 3000;
		1140
		1141	sub generate_random_map {
		1142	my ($self, $rmp) = @_;
		1143	# mit "rum" bekleckern, nicht
		1144	$self->_create_random_map (
		1145	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1146	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1147	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1148	$rmp->{exit_on_final_map},
		1149	$rmp->{xsize}, $rmp->{ysize},
		1150	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1151	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1152	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1153	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1154	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1155	(cf::region::find $rmp->{region}), $rmp->{custom}
		1156	)
		1157	}
		1158
		1159	=item cf::map->register ($regex, $prio)
		1160
		1161	Register a handler for the map path matching the given regex at the
		1162	givne priority (higher is better, built-in handlers have priority 0, the
		1163	default).
		1164
		1165	=cut
		1166
		1167	sub register {
		1168	my (undef, $regex, $prio) = @_;
		1169	my $pkg = caller;
		1170
		1171	no strict;
		1172	push @{"$pkg\::ISA"}, __PACKAGE__;
		1173
		1174	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1175	}
		1176
		1177	# also paths starting with '/'
		1178	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1179
		1180	sub thawer_merge {
		1181	my ($self, $merge) = @_;
		1182
		1183	# we have to keep some variables in memory intact
		1184	local $self->{path};
		1185	local $self->{load_path};
		1186	local $self->{deny_save};
		1187	local $self->{deny_reset};
		1188
		1189	$self->SUPER::thawer_merge ($merge);
		1190	}
		1191
		1192	sub normalise {
		1193	my ($path, $base) = @_;
		1194
		1195	$path = "$path"; # make sure its a string
		1196
		1197	$path =~ s/\.map$//;
		1198
		1199	# map plan:
		1200	#
		1201	# /! non-realised random map exit (special hack!)
		1202	# {... are special paths that are not being touched
		1203	# ?xxx/... are special absolute paths
		1204	# ?random/... random maps
		1205	# /... normal maps
		1206	# ~user/... per-player map of a specific user
		1207
		1208	$path =~ s/$PATH_SEP/\//go;
		1209
		1210	# treat it as relative path if it starts with
		1211	# something that looks reasonable
		1212	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1213	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1214
		1215	$base =~ s{[^/]+/?$}{};
		1216	$path = "$base/$path";
		1217	}
		1218
		1219	for ($path) {
		1220	redo if s{//}{/};
		1221	redo if s{/\.?/}{/};
		1222	redo if s{/[^/]+/\.\./}{/};
		1223	}
		1224
		1225	$path
		1226	}
		1227
		1228	sub new_from_path {
		1229	my (undef, $path, $base) = @_;
		1230
		1231	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1232
		1233	$path = normalise $path, $base;
		1234
		1235	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1236	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1237	my $self = bless cf::map::new, $pkg;
		1238	$self->{path} = $path; $self->path ($path);
		1239	$self->init; # pass $1 etc.
		1240	return $self;
		1241	}
		1242	}
		1243
		1244	Carp::carp "unable to resolve path '$path' (base '$base').";
		1245	()
		1246	}
		1247
		1248	sub init {
		1249	my ($self) = @_;
		1250
		1251	$self
		1252	}
		1253
		1254	sub as_string {
		1255	my ($self) = @_;
		1256
		1257	"$self->{path}"
		1258	}
		1259
		1260	# the displayed name, this is a one way mapping
		1261	sub visible_name {
		1262	&as_string
		1263	}
		1264
		1265	# the original (read-only) location
		1266	sub load_path {
		1267	my ($self) = @_;
		1268
		1269	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1270	}
		1271
		1272	# the temporary/swap location
		1273	sub save_path {
		1274	my ($self) = @_;
		1275
		1276	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1277	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1278	}
		1279
		1280	# the unique path, undef == no special unique path
		1281	sub uniq_path {
		1282	my ($self) = @_;
		1283
		1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1285	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1286	}
		1287
		1288	# and all this just because we cannot iterate over
		1289	# all maps in C++...
		1290	sub change_all_map_light {
		1291	my ($change) = @_;
		1292
		1293	$_->change_map_light ($change)
		1294	for grep $_->outdoor, values %cf::MAP;
		1295	}
		1296
		1297	sub unlink_save {
		1298	my ($self) = @_;
		1299
		1300	utf8::encode (my $save = $self->save_path);
		1301	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1302	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1303	}
		1304
		1305	sub load_header_from($) {
		1306	my ($self, $path) = @_;
		1307
		1308	utf8::encode $path;
		1309	#aio_open $path, O_RDONLY, 0
		1310	# or return;
		1311
		1312	$self->_load_header ($path)
		1313	or return;
		1314
		1315	$self->{load_path} = $path;
		1316
		1317	1
		1318	}
		1319
		1320	sub load_header_orig {
		1321	my ($self) = @_;
		1322
		1323	$self->load_header_from ($self->load_path)
		1324	}
		1325
		1326	sub load_header_temp {
		1327	my ($self) = @_;
		1328
		1329	$self->load_header_from ($self->save_path)
		1330	}
		1331
		1332	sub prepare_temp {
		1333	my ($self) = @_;
		1334
		1335	$self->last_access ((delete $self->{last_access})
		1336	|| $cf::RUNTIME); #d#
		1337	# safety
		1338	$self->{instantiate_time} = $cf::RUNTIME
		1339	if $self->{instantiate_time} > $cf::RUNTIME;
		1340	}
		1341
		1342	sub prepare_orig {
		1343	my ($self) = @_;
		1344
		1345	$self->{load_original} = 1;
		1346	$self->{instantiate_time} = $cf::RUNTIME;
		1347	$self->last_access ($cf::RUNTIME);
		1348	$self->instantiate;
		1349	}
		1350
		1351	sub load_header {
		1352	my ($self) = @_;
		1353
		1354	if ($self->load_header_temp) {
		1355	$self->prepare_temp;
		1356	} else {
		1357	$self->load_header_orig
		1358	or return;
		1359	$self->prepare_orig;
		1360	}
		1361
		1362	1
		1363	}
		1364
		1365	sub find;
		1366	sub find {
		1367	my ($path, $origin) = @_;
		1368
		1369	$path = normalise $path, $origin && $origin->path;
		1370
		1371	cf::lock_wait "map_find:$path";
		1372
		1373	$cf::MAP{$path} || do {
		1374	my $guard = cf::lock_acquire "map_find:$path";
		1375	my $map = new_from_path cf::map $path
		1376	or return;
		1377
		1378	$map->{last_save} = $cf::RUNTIME;
		1379
		1380	$map->load_header
		1381	or return;
		1382
		1383	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1384	# doing this can freeze the server in a sync job, obviously
		1385	#$cf::WAIT_FOR_TICK->wait;
		1386	$map->reset;
		1387	undef $guard;
		1388	return find $path;
		1389	}
		1390
		1391	$cf::MAP{$path} = $map
		1392	}
		1393	}
		1394
		1395	sub pre_load { }
		1396	sub post_load { }
		1397
		1398	sub load {
		1399	my ($self) = @_;
		1400
		1401	local $self->{deny_reset} = 1; # loading can take a long time
		1402
		1403	my $path = $self->{path};
		1404	my $guard = cf::lock_acquire "map_load:$path";
		1405
		1406	return if $self->in_memory != cf::MAP_SWAPPED;
		1407
		1408	$self->in_memory (cf::MAP_LOADING);
		1409
		1410	$self->alloc;
		1411
		1412	$self->pre_load;
		1413
		1414	$self->_load_objects ($self->{load_path}, 1)
		1415	or return;
		1416
		1417	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1418	if delete $self->{load_original};
		1419
		1420	if (my $uniq = $self->uniq_path) {
		1421	utf8::encode $uniq;
		1422	if (aio_open $uniq, O_RDONLY, 0) {
		1423	$self->clear_unique_items;
		1424	$self->_load_objects ($uniq, 0);
		1425	}
		1426	}
		1427
		1428	Coro::cede;
		1429
		1430	# now do the right thing for maps
		1431	$self->link_multipart_objects;
		1432
		1433	unless ($self->{deny_activate}) {
		1434	$self->decay_objects;
		1435	$self->fix_auto_apply;
		1436	$self->update_buttons;
		1437	Coro::cede;
		1438	$self->set_darkness_map;
		1439	$self->difficulty ($self->estimate_difficulty)
		1440	unless $self->difficulty;
		1441	Coro::cede;
		1442	$self->activate;
		1443	}
		1444
		1445	$self->post_load;
		1446
		1447	$self->in_memory (cf::MAP_IN_MEMORY);
		1448	}
		1449
		1450	sub customise_for {
		1451	my ($self, $ob) = @_;
		1452
		1453	return find "~" . $ob->name . "/" . $self->{path}
		1454	if $self->per_player;
		1455
		1456	$self
		1457	}
		1458
		1459	# find and load all maps in the 3x3 area around a map
		1460	sub load_diag {
733	my ($map) = @_;	1461	my ($map) = @_;
734		1462
735	my $path = $map->tmpname;	1463	my @diag; # diagonal neighbours
736	defined $path or return;
737		1464
738	unlink "$path.pst";	1465	for (0 .. 3) {
739	};	1466	my $neigh = $map->tile_path ($_)
		1467	or next;
		1468	$neigh = find $neigh, $map
		1469	or next;
		1470	$neigh->load;
740		1471
741	attach_to_maps prio => -10000, package => cf::mapsupport::;	1472	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1473	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1474	}
742		1475
743	#############################################################################	1476	for (@diag) {
744	# load/save perl data associated with player->ob objects	1477	my $neigh = find @$_
745		1478	or next;
746	sub all_objects(@) {	1479	$neigh->load;
747	@_, map all_objects ($_->inv), @_	1480	}
748	}	1481	}
749		1482
750	# TODO: compatibility cruft, remove when no longer needed	1483	sub find_sync {
751	attach_to_players	1484	my ($path, $origin) = @_;
752	on_load => sub {
753	my ($pl, $path) = @_;
754		1485
755	for my $o (all_objects $pl->ob) {	1486	cf::sync_job { find $path, $origin }
756	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1487	}
757	$o->set_ob_key_value ("_perl_data");
758		1488
759	%$o = %{ Storable::thaw pack "H*", $value };	1489	sub do_load_sync {
		1490	my ($map) = @_;
		1491
		1492	cf::sync_job { $map->load };
		1493	}
		1494
		1495	our %MAP_PREFETCH;
		1496	our $MAP_PREFETCHER = undef;
		1497
		1498	sub find_async {
		1499	my ($path, $origin) = @_;
		1500
		1501	$path = normalise $path, $origin && $origin->{path};
		1502
		1503	if (my $map = $cf::MAP{$path}) {
		1504	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1505	}
		1506
		1507	undef $MAP_PREFETCH{$path};
		1508	$MAP_PREFETCHER ||= cf::async {
		1509	while (%MAP_PREFETCH) {
		1510	for my $path (keys %MAP_PREFETCH) {
		1511	my $map = find $path
		1512	or next;
		1513	$map->load;
		1514
		1515	delete $MAP_PREFETCH{$path};
760	}	1516	}
761	}	1517	}
		1518	undef $MAP_PREFETCHER;
		1519	};
		1520	$MAP_PREFETCHER->prio (6);
		1521
		1522	()
		1523	}
		1524
		1525	sub save {
		1526	my ($self) = @_;
		1527
		1528	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1529
		1530	$self->{last_save} = $cf::RUNTIME;
		1531
		1532	return unless $self->dirty;
		1533
		1534	my $save = $self->save_path; utf8::encode $save;
		1535	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1536
		1537	$self->{load_path} = $save;
		1538
		1539	return if $self->{deny_save};
		1540
		1541	local $self->{last_access} = $self->last_access;#d#
		1542
		1543	cf::async {
		1544	$_->contr->save for $self->players;
		1545	};
		1546
		1547	if ($uniq) {
		1548	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1549	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1550	} else {
		1551	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
762	},	1552	}
763	;	1553	}
764		1554
765	#############################################################################	1555	sub swap_out {
		1556	my ($self) = @_;
766		1557
767	=head2 CORE EXTENSIONS	1558	# save first because save cedes
		1559	$self->save;
768		1560
769	Functions and methods that extend core crossfire objects.	1561	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1562
		1563	return if $self->players;
		1564	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1565	return if $self->{deny_save};
		1566
		1567	$self->clear;
		1568	$self->in_memory (cf::MAP_SWAPPED);
		1569	}
		1570
		1571	sub reset_at {
		1572	my ($self) = @_;
		1573
		1574	# TODO: safety, remove and allow resettable per-player maps
		1575	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1576	return 1e99 if $self->{deny_reset};
		1577
		1578	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1579	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1580
		1581	$time + $to
		1582	}
		1583
		1584	sub should_reset {
		1585	my ($self) = @_;
		1586
		1587	$self->reset_at <= $cf::RUNTIME
		1588	}
		1589
		1590	sub reset {
		1591	my ($self) = @_;
		1592
		1593	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1594
		1595	return if $self->players;
		1596	return if $self->isa ("ext::map_per_player");#d#
		1597
		1598	warn "resetting map ", $self->path;#d#
		1599
		1600	$self->in_memory (cf::MAP_SWAPPED);
		1601
		1602	# need to save uniques path
		1603	unless ($self->{deny_save}) {
		1604	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1605
		1606	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1607	if $uniq;
		1608	}
		1609
		1610	delete $cf::MAP{$self->path};
		1611
		1612	$self->clear;
		1613
		1614	$_->clear_links_to ($self) for values %cf::MAP;
		1615
		1616	$self->unlink_save;
		1617	$self->destroy;
		1618	}
		1619
		1620	my $nuke_counter = "aaaa";
		1621
		1622	sub nuke {
		1623	my ($self) = @_;
		1624
		1625	delete $cf::MAP{$self->path};
		1626
		1627	$self->unlink_save;
		1628
		1629	bless $self, "cf::map";
		1630	delete $self->{deny_reset};
		1631	$self->{deny_save} = 1;
		1632	$self->reset_timeout (1);
		1633	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1634
		1635	$cf::MAP{$self->path} = $self;
		1636
		1637	$self->reset; # polite request, might not happen
		1638	}
		1639
		1640	=item cf::map::unique_maps
		1641
		1642	Returns an arrayref of paths of all shared maps that have
		1643	instantiated unique items. May block.
		1644
		1645	=cut
		1646
		1647	sub unique_maps() {
		1648	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1649	or return;
		1650
		1651	my @paths;
		1652
		1653	for (@$files) {
		1654	utf8::decode $_;
		1655	next if /\.pst$/;
		1656	next unless /^$PATH_SEP/o;
		1657
		1658	push @paths, cf::map::normalise $_;
		1659	}
		1660
		1661	\@paths
		1662	}
		1663
		1664	package cf;
		1665
		1666	=back
		1667
		1668	=head3 cf::object
		1669
		1670	=cut
		1671
		1672	package cf::object;
770		1673
771	=over 4	1674	=over 4
772		1675
773	=item cf::player::exists $login	1676	=item $ob->inv_recursive
774		1677
775	Returns true when the given account exists.	1678	Returns the inventory of the object _and_ their inventories, recursively.
776		1679
777	=cut	1680	=cut
778		1681
779	sub cf::player::exists($) {	1682	sub inv_recursive_;
780	cf::player::find $_[0]	1683	sub inv_recursive_ {
781	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1684	map { $_, inv_recursive_ $_->inv } @_
782	}	1685	}
		1686
		1687	sub inv_recursive {
		1688	inv_recursive_ inv $_[0]
		1689	}
		1690
		1691	package cf;
		1692
		1693	=back
		1694
		1695	=head3 cf::object::player
		1696
		1697	=over 4
783		1698
784	=item $player_object->reply ($npc, $msg[, $flags])	1699	=item $player_object->reply ($npc, $msg[, $flags])
785		1700
786	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1701	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
787	can be C<undef>. Does the right thing when the player is currently in a	1702	can be C<undef>. Does the right thing when the player is currently in a
…		…
789		1704
790	=cut	1705	=cut
791		1706
792	# rough implementation of a future "reply" method that works	1707	# rough implementation of a future "reply" method that works
793	# with dialog boxes.	1708	# with dialog boxes.
		1709	#TODO: the first argument must go, split into a $npc->reply_to ( method
794	sub cf::object::player::reply($$$;$) {	1710	sub cf::object::player::reply($$$;$) {
795	my ($self, $npc, $msg, $flags) = @_;	1711	my ($self, $npc, $msg, $flags) = @_;
796		1712
797	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1713	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
798		1714
…		…
802	$msg = $npc->name . " says: $msg" if $npc;	1718	$msg = $npc->name . " says: $msg" if $npc;
803	$self->message ($msg, $flags);	1719	$self->message ($msg, $flags);
804	}	1720	}
805	}	1721	}
806		1722
807	=item $player->ext_reply ($msgid, $msgtype, %msg)
808
809	Sends an ext reply to the player.
810
811	=cut
812
813	sub cf::player::ext_reply($$$%) {
814	my ($self, $id, %msg) = @_;
815
816	$msg{msgid} = $id;
817
818	$self->send ("ext " . to_json \%msg);
819	}
820
821	=item $player_object->may ("access")	1723	=item $player_object->may ("access")
822		1724
823	Returns wether the given player is authorized to access resource "access"	1725	Returns wether the given player is authorized to access resource "access"
824	(e.g. "command_wizcast").	1726	(e.g. "command_wizcast").
825		1727
…		…
832	(ref $cf::CFG{"may_$access"}	1734	(ref $cf::CFG{"may_$access"}
833	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1735	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
834	: $cf::CFG{"may_$access"})	1736	: $cf::CFG{"may_$access"})
835	}	1737	}
836		1738
837	=cut	1739	=item $player_object->enter_link
838		1740
839	#############################################################################	1741	Freezes the player and moves him/her to a special map (C<{link}>).
		1742
		1743	The player should be reasonably safe there for short amounts of time. You
		1744	I<MUST> call C<leave_link> as soon as possible, though.
		1745
		1746	Will never block.
		1747
		1748	=item $player_object->leave_link ($map, $x, $y)
		1749
		1750	Moves the player out of the special C<{link}> map onto the specified
		1751	map. If the map is not valid (or omitted), the player will be moved back
		1752	to the location he/she was before the call to C<enter_link>, or, if that
		1753	fails, to the emergency map position.
		1754
		1755	Might block.
		1756
		1757	=cut
		1758
		1759	sub link_map {
		1760	unless ($LINK_MAP) {
		1761	$LINK_MAP = cf::map::find "{link}"
		1762	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1763	$LINK_MAP->load;
		1764	}
		1765
		1766	$LINK_MAP
		1767	}
		1768
		1769	sub cf::object::player::enter_link {
		1770	my ($self) = @_;
		1771
		1772	$self->deactivate_recursive;
		1773
		1774	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1775
		1776	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1777	if $self->map;
		1778
		1779	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1780	}
		1781
		1782	sub cf::object::player::leave_link {
		1783	my ($self, $map, $x, $y) = @_;
		1784
		1785	my $link_pos = delete $self->{_link_pos};
		1786
		1787	unless ($map) {
		1788	# restore original map position
		1789	($map, $x, $y) = @{ $link_pos || [] };
		1790	$map = cf::map::find $map;
		1791
		1792	unless ($map) {
		1793	($map, $x, $y) = @$EMERGENCY_POSITION;
		1794	$map = cf::map::find $map
		1795	or die "FATAL: cannot load emergency map\n";
		1796	}
		1797	}
		1798
		1799	($x, $y) = (-1, -1)
		1800	unless (defined $x) && (defined $y);
		1801
		1802	# use -1 or undef as default coordinates, not 0, 0
		1803	($x, $y) = ($map->enter_x, $map->enter_y)
		1804	if $x <=0 && $y <= 0;
		1805
		1806	$map->load;
		1807	$map->load_diag;
		1808
		1809	return unless $self->contr->active;
		1810	$self->activate_recursive;
		1811
		1812	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		1813	$self->enter_map ($map, $x, $y);
		1814	}
		1815
		1816	cf::player->attach (
		1817	on_logout => sub {
		1818	my ($pl) = @_;
		1819
		1820	# abort map switching before logout
		1821	if ($pl->ob->{_link_pos}) {
		1822	cf::sync_job {
		1823	$pl->ob->leave_link
		1824	};
		1825	}
		1826	},
		1827	on_login => sub {
		1828	my ($pl) = @_;
		1829
		1830	# try to abort aborted map switching on player login :)
		1831	# should happen only on crashes
		1832	if ($pl->ob->{_link_pos}) {
		1833	$pl->ob->enter_link;
		1834	(async {
		1835	$pl->ob->reply (undef,
		1836	"There was an internal problem at your last logout, "
		1837	. "the server will try to bring you to your intended destination in a second.",
		1838	cf::NDI_RED);
		1839	# we need this sleep as the login has a concurrent enter_exit running
		1840	# and this sleep increases chances of the player not ending up in scorn
		1841	Coro::Timer::sleep 1;
		1842	$pl->ob->leave_link;
		1843	})->prio (2);
		1844	}
		1845	},
		1846	);
		1847
		1848	=item $player_object->goto ($path, $x, $y)
		1849
		1850	=cut
		1851
		1852	sub cf::object::player::goto {
		1853	my ($self, $path, $x, $y) = @_;
		1854
		1855	$self->enter_link;
		1856
		1857	(async {
		1858	my $map = eval {
		1859	my $map = cf::map::find $path;
		1860	$map = $map->customise_for ($self) if $map;
		1861	$map
		1862	} or
		1863	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1864
		1865	$self->leave_link ($map, $x, $y);
		1866	})->prio (1);
		1867	}
		1868
		1869	=item $player_object->enter_exit ($exit_object)
		1870
		1871	=cut
		1872
		1873	sub parse_random_map_params {
		1874	my ($spec) = @_;
		1875
		1876	my $rmp = { # defaults
		1877	xsize => (cf::rndm 15, 40),
		1878	ysize => (cf::rndm 15, 40),
		1879	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1880	#layout => string,
		1881	};
		1882
		1883	for (split /\n/, $spec) {
		1884	my ($k, $v) = split /\s+/, $_, 2;
		1885
		1886	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1887	}
		1888
		1889	$rmp
		1890	}
		1891
		1892	sub prepare_random_map {
		1893	my ($exit) = @_;
		1894
		1895	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1896
		1897	# all this does is basically replace the /! path by
		1898	# a new random map path (?random/...) with a seed
		1899	# that depends on the exit object
		1900
		1901	my $rmp = parse_random_map_params $exit->msg;
		1902
		1903	if ($exit->map) {
		1904	$rmp->{region} = $exit->region->name;
		1905	$rmp->{origin_map} = $exit->map->path;
		1906	$rmp->{origin_x} = $exit->x;
		1907	$rmp->{origin_y} = $exit->y;
		1908	}
		1909
		1910	$rmp->{random_seed} ||= $exit->random_seed;
		1911
		1912	my $data = cf::to_json $rmp;
		1913	my $md5 = Digest::MD5::md5_hex $data;
		1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1915
		1916	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1917	aio_write $fh, 0, (length $data), $data, 0;
		1918	undef $fh;
		1919	aio_rename "$meta~", $meta;
		1920
		1921	$exit->slaying ("?random/$md5");
		1922	$exit->msg (undef);
		1923	}
		1924	}
		1925
		1926	sub cf::object::player::enter_exit {
		1927	my ($self, $exit) = @_;
		1928
		1929	return unless $self->type == cf::PLAYER;
		1930
		1931	if ($exit->slaying eq "/!") {
		1932	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1933	cf::sync_job { prepare_random_map $exit };
		1934	}
		1935
		1936	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1937	my $hp = $exit->stats->hp;
		1938	my $sp = $exit->stats->sp;
		1939
		1940	$self->enter_link;
		1941
		1942	(async {
		1943	$self->deactivate_recursive; # just to be sure
		1944	unless (eval {
		1945	$self->goto ($slaying, $hp, $sp);
		1946
		1947	1;
		1948	}) {
		1949	$self->message ("Something went wrong deep within the crossfire server. "
		1950	. "I'll try to bring you back to the map you were before. "
		1951	. "Please report this to the dungeon master!",
		1952	cf::NDI_UNIQUE | cf::NDI_RED);
		1953
		1954	warn "ERROR in enter_exit: $@";
		1955	$self->leave_link;
		1956	}
		1957	})->prio (1);
		1958	}
		1959
		1960	=head3 cf::client
		1961
		1962	=over 4
		1963
		1964	=item $client->send_drawinfo ($text, $flags)
		1965
		1966	Sends a drawinfo packet to the client. Circumvents output buffering so
		1967	should not be used under normal circumstances.
		1968
		1969	=cut
		1970
		1971	sub cf::client::send_drawinfo {
		1972	my ($self, $text, $flags) = @_;
		1973
		1974	utf8::encode $text;
		1975	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1976	}
		1977
		1978
		1979	=item $success = $client->query ($flags, "text", \&cb)
		1980
		1981	Queues a query to the client, calling the given callback with
		1982	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1983	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1984
		1985	Queries can fail, so check the return code. Or don't, as queries will become
		1986	reliable at some point in the future.
		1987
		1988	=cut
		1989
		1990	sub cf::client::query {
		1991	my ($self, $flags, $text, $cb) = @_;
		1992
		1993	return unless $self->state == ST_PLAYING
		1994	|| $self->state == ST_SETUP
		1995	|| $self->state == ST_CUSTOM;
		1996
		1997	$self->state (ST_CUSTOM);
		1998
		1999	utf8::encode $text;
		2000	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		2001
		2002	$self->send_packet ($self->{query_queue}[0][0])
		2003	if @{ $self->{query_queue} } == 1;
		2004	}
		2005
		2006	cf::client->attach (
		2007	on_reply => sub {
		2008	my ($ns, $msg) = @_;
		2009
		2010	# this weird shuffling is so that direct followup queries
		2011	# get handled first
		2012	my $queue = delete $ns->{query_queue}
		2013	or return; # be conservative, not sure how that can happen, but we saw a crash here
		2014
		2015	(shift @$queue)->[1]->($msg);
		2016	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
		2017
		2018	push @{ $ns->{query_queue} }, @$queue;
		2019
		2020	if (@{ $ns->{query_queue} } == @$queue) {
		2021	if (@$queue) {
		2022	$ns->send_packet ($ns->{query_queue}[0][0]);
		2023	} else {
		2024	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		2025	}
		2026	}
		2027	},
		2028	);
		2029
		2030	=item $client->async (\&cb)
		2031
		2032	Create a new coroutine, running the specified callback. The coroutine will
		2033	be automatically cancelled when the client gets destroyed (e.g. on logout,
		2034	or loss of connection).
		2035
		2036	=cut
		2037
		2038	sub cf::client::async {
		2039	my ($self, $cb) = @_;
		2040
		2041	my $coro = &Coro::async ($cb);
		2042
		2043	$coro->on_destroy (sub {
		2044	delete $self->{_coro}{$coro+0};
		2045	});
		2046
		2047	$self->{_coro}{$coro+0} = $coro;
		2048
		2049	$coro
		2050	}
		2051
		2052	cf::client->attach (
		2053	on_destroy => sub {
		2054	my ($ns) = @_;
		2055
		2056	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		2057	},
		2058	);
		2059
		2060	=back
		2061
840		2062
841	=head2 SAFE SCRIPTING	2063	=head2 SAFE SCRIPTING
842		2064
843	Functions that provide a safe environment to compile and execute	2065	Functions that provide a safe environment to compile and execute
844	snippets of perl code without them endangering the safety of the server	2066	snippets of perl code without them endangering the safety of the server
…		…
859		2081
860	=pod	2082	=pod
861		2083
862	The following fucntions and emthods are available within a safe environment:	2084	The following fucntions and emthods are available within a safe environment:
863		2085
864	cf::object contr pay_amount pay_player	2086	cf::object contr pay_amount pay_player map
865	cf::object::player player	2087	cf::object::player player
866	cf::player peaceful	2088	cf::player peaceful
		2089	cf::map trigger
867		2090
868	=cut	2091	=cut
869		2092
870	for (	2093	for (
871	["cf::object" => qw(contr pay_amount pay_player)],	2094	["cf::object" => qw(contr pay_amount pay_player map)],
872	["cf::object::player" => qw(player)],	2095	["cf::object::player" => qw(player)],
873	["cf::player" => qw(peaceful)],	2096	["cf::player" => qw(peaceful)],
		2097	["cf::map" => qw(trigger)],
874	) {	2098	) {
875	no strict 'refs';	2099	no strict 'refs';
876	my ($pkg, @funs) = @$_;	2100	my ($pkg, @funs) = @$_;
877	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	2101	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
878	for @funs;	2102	for @funs;
…		…
958	The parameter C<$family> should best start with the name of the extension	2182	The parameter C<$family> should best start with the name of the extension
959	using it, it should be unique.	2183	using it, it should be unique.
960		2184
961	=over 4	2185	=over 4
962		2186
963	=item $hashref = cf::db_get $family
964
965	Return a hashref for use by the extension C<$family>, which can be
966	modified. After modifications, you have to call C<cf::db_dirty> or
967	C<cf::db_sync>.
968
969	=item $value = cf::db_get $family => $key	2187	=item $value = cf::db_get $family => $key
970		2188
971	Returns a single value from the database	2189	Returns a single value from the database.
972
973	=item cf::db_put $family => $hashref
974
975	Stores the given family hashref into the database. Updates are delayed, if
976	you want the data to be synced to disk immediately, use C<cf::db_sync>.
977		2190
978	=item cf::db_put $family => $key => $value	2191	=item cf::db_put $family => $key => $value
979		2192
980	Stores the given C<$value> in the family hash. Updates are delayed, if you	2193	Stores the given C<$value> in the family.
981	want the data to be synced to disk immediately, use C<cf::db_sync>.
982
983	=item cf::db_dirty
984
985	Marks the database as dirty, to be updated at a later time.
986
987	=item cf::db_sync
988
989	Immediately write the database to disk I<if it is dirty>.
990		2194
991	=cut	2195	=cut
992		2196
993	our $DB;	2197	our $DB;
994		2198
995	{	2199	sub db_init {
		2200	unless ($DB) {
		2201	$DB = BDB::db_create $DB_ENV;
		2202
		2203	cf::sync_job {
		2204	eval {
		2205	$DB->set_flags (BDB::CHKSUM);
		2206
		2207	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2208	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2209	cf::cleanup "db_open(db): $!" if $!;
		2210	};
		2211	cf::cleanup "db_open(db): $@" if $@;
		2212	};
		2213
996	my $path = cf::localdir . "/database.pst";	2214	my $path = cf::localdir . "/database.pst";
		2215	if (stat $path) {
		2216	cf::sync_job {
		2217	my $pst = Storable::retrieve $path;
997		2218
998	sub db_load() {	2219	cf::db_put (board => data => $pst->{board});
999	warn "loading database $path\n";#d# remove later	2220	cf::db_put (guildrules => data => $pst->{guildrules});
1000	$DB = stat $path ? Storable::retrieve $path : { };	2221	cf::db_put (rent => balance => $pst->{rent}{balance});
1001	}	2222	BDB::db_env_txn_checkpoint $DB_ENV;
1002		2223
1003	my $pid;	2224	unlink $path;
1004
1005	sub db_save() {
1006	warn "saving database $path\n";#d# remove later
1007	waitpid $pid, 0 if $pid;
1008	if (0 == ($pid = fork)) {
1009	$DB->{_meta}{version} = 1;
1010	Storable::nstore $DB, "$path~";
1011	rename "$path~", $path;
1012	cf::_exit 0 if defined $pid;
1013	}	2225	};
1014	}
1015
1016	my $dirty;
1017
1018	sub db_sync() {
1019	db_save if $dirty;
1020	undef $dirty;
1021	}
1022
1023	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {
1024	db_sync;
1025	});
1026
1027	sub db_dirty() {
1028	$dirty = 1;
1029	$idle->start;
1030	}
1031
1032	sub db_get($;$) {
1033	@_ >= 2
1034	? $DB->{$_[0]}{$_[1]}
1035	: ($DB->{$_[0]} ||= { })
1036	}
1037
1038	sub db_put($$;$) {
1039	if (@_ >= 3) {
1040	$DB->{$_[0]}{$_[1]} = $_[2];
1041	} else {
1042	$DB->{$_[0]} = $_[1];
1043	}
1044	db_dirty;
1045	}
1046
1047	attach_global
1048	prio => 10000,
1049	on_cleanup => sub {
1050	db_sync;
1051	},	2226	}
1052	;	2227	}
		2228	}
		2229
		2230	sub db_get($$) {
		2231	my $key = "$_[0]/$_[1]";
		2232
		2233	cf::sync_job {
		2234	BDB::db_get $DB, undef, $key, my $data;
		2235
		2236	$! ? ()
		2237	: Compress::LZF::sthaw $data
		2238	}
		2239	}
		2240
		2241	sub db_put($$$) {
		2242	BDB::dbreq_pri 4;
		2243	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1053	}	2244	}
1054		2245
1055	#############################################################################	2246	#############################################################################
1056	# the server's main()	2247	# the server's init and main functions
		2248
		2249	sub init_resources {
		2250	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2251	or die "unable to load regions file\n";#d#
		2252	}
1057		2253
1058	sub cfg_load {	2254	sub cfg_load {
1059	open my $fh, "<:utf8", cf::confdir . "/config"	2255	open my $fh, "<:utf8", cf::confdir . "/config"
1060	or return;	2256	or return;
1061		2257
1062	local $/;	2258	local $/;
1063	*CFG = YAML::Syck::Load <$fh>;	2259	*CFG = YAML::Syck::Load <$fh>;
		2260
		2261	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2262
		2263	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2264	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2265
		2266	if (exists $CFG{mlockall}) {
		2267	eval {
		2268	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2269	and die "WARNING: m(un)lockall failed: $!\n";
		2270	};
		2271	warn $@ if $@;
		2272	}
		2273	}
		2274
		2275	sub init {
		2276	init_resources;
1064	}	2277	}
1065		2278
1066	sub main {	2279	sub main {
		2280	# we must not ever block the main coroutine
		2281	local $Coro::idle = sub {
		2282	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2283	(async {
		2284	Event::one_event;
		2285	})->prio (Coro::PRIO_MAX);
		2286	};
		2287
1067	cfg_load;	2288	cfg_load;
1068	db_load;	2289	db_init;
1069	load_extensions;	2290	load_extensions;
		2291
		2292	$TICK_WATCHER->start;
1070	Event::loop;	2293	Event::loop;
1071	}	2294	}
1072		2295
1073	#############################################################################	2296	#############################################################################
1074	# initialisation	2297	# initialisation and cleanup
1075		2298
		2299	# install some emergency cleanup handlers
		2300	BEGIN {
		2301	for my $signal (qw(INT HUP TERM)) {
		2302	Event->signal (
		2303	reentrant => 0,
		2304	data => WF_AUTOCANCEL,
		2305	signal => $signal,
		2306	prio => 0,
		2307	cb => sub {
		2308	cf::cleanup "SIG$signal";
		2309	},
		2310	);
		2311	}
		2312	}
		2313
		2314	sub emergency_save() {
		2315	my $freeze_guard = cf::freeze_mainloop;
		2316
		2317	warn "enter emergency perl save\n";
		2318
		2319	cf::sync_job {
		2320	# use a peculiar iteration method to avoid tripping on perl
		2321	# refcount bugs in for. also avoids problems with players
		2322	# and maps saved/destroyed asynchronously.
		2323	warn "begin emergency player save\n";
		2324	for my $login (keys %cf::PLAYER) {
		2325	my $pl = $cf::PLAYER{$login} or next;
		2326	$pl->valid or next;
		2327	$pl->save;
		2328	}
		2329	warn "end emergency player save\n";
		2330
		2331	warn "begin emergency map save\n";
		2332	for my $path (keys %cf::MAP) {
		2333	my $map = $cf::MAP{$path} or next;
		2334	$map->valid or next;
		2335	$map->save;
		2336	}
		2337	warn "end emergency map save\n";
		2338
		2339	warn "begin emergency database checkpoint\n";
		2340	BDB::db_env_txn_checkpoint $DB_ENV;
		2341	warn "end emergency database checkpoint\n";
		2342	};
		2343
		2344	warn "leave emergency perl save\n";
		2345	}
		2346
		2347	sub post_cleanup {
		2348	my ($make_core) = @_;
		2349
		2350	warn Carp::longmess "post_cleanup backtrace"
		2351	if $make_core;
		2352	}
		2353
1076	sub _perl_reload(&) {	2354	sub reload() {
1077	my ($msg) = @_;	2355	# can/must only be called in main
		2356	if ($Coro::current != $Coro::main) {
		2357	warn "can only reload from main coroutine";
		2358	return;
		2359	}
1078		2360
1079	$msg->("reloading...");	2361	warn "reloading...";
1080		2362
1081	eval {	2363	warn "entering sync_job";
1082	# cancel all watchers	2364
		2365	cf::sync_job {
		2366	cf::write_runtime; # external watchdog should not bark
		2367	cf::emergency_save;
		2368	cf::write_runtime; # external watchdog should not bark
		2369
		2370	warn "syncing database to disk";
		2371	BDB::db_env_txn_checkpoint $DB_ENV;
		2372
		2373	# if anything goes wrong in here, we should simply crash as we already saved
		2374
		2375	warn "cancelling all WF_AUTOCANCEL watchers";
1083	$_->cancel for Event::all_watchers;	2376	for (Event::all_watchers) {
		2377	$_->cancel if $_->data & WF_AUTOCANCEL;
		2378	}
1084		2379
1085	# unload all extensions	2380	warn "flushing outstanding aio requests";
1086	for (@exts) {	2381	for (;;) {
1087	$msg->("unloading <$_>");	2382	BDB::flush;
1088	unload_extension $_;	2383	IO::AIO::flush;
		2384	Coro::cede;
		2385	last unless IO::AIO::nreqs || BDB::nreqs;
		2386	warn "iterate...";
		2387	}
		2388
		2389	warn "cancelling all extension coros";
		2390	$_->cancel for values %EXT_CORO;
		2391	%EXT_CORO = ();
		2392
		2393	warn "removing commands";
		2394	%COMMAND = ();
		2395
		2396	warn "removing ext commands";
		2397	%EXTCMD = ();
		2398
		2399	warn "unloading/nuking all extensions";
		2400	for my $pkg (@EXTS) {
		2401	warn "... unloading $pkg";
		2402
		2403	if (my $cb = $pkg->can ("unload")) {
		2404	eval {
		2405	$cb->($pkg);
		2406	1
		2407	} or warn "$pkg unloaded, but with errors: $@";
1089	}	2408	}
1090		2409
		2410	warn "... nuking $pkg";
		2411	Symbol::delete_package $pkg;
		2412	}
		2413
1091	# unload all modules loaded from $LIBDIR	2414	warn "unloading all perl modules loaded from $LIBDIR";
1092	while (my ($k, $v) = each %INC) {	2415	while (my ($k, $v) = each %INC) {
1093	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2416	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1094		2417
1095	$msg->("removing <$k>");	2418	warn "... unloading $k";
1096	delete $INC{$k};	2419	delete $INC{$k};
1097		2420
1098	$k =~ s/\.pm$//;	2421	$k =~ s/\.pm$//;
1099	$k =~ s/\//::/g;	2422	$k =~ s/\//::/g;
1100		2423
…		…
1103	}	2426	}
1104		2427
1105	Symbol::delete_package $k;	2428	Symbol::delete_package $k;
1106	}	2429	}
1107		2430
1108	# sync database to disk
1109	cf::db_sync;
1110
1111	# get rid of safe::, as good as possible	2431	warn "getting rid of safe::, as good as possible";
1112	Symbol::delete_package "safe::$_"	2432	Symbol::delete_package "safe::$_"
1113	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2433	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1114		2434
1115	# remove register_script_function callbacks
1116	# TODO
1117
1118	# unload cf.pm "a bit"	2435	warn "unloading cf.pm \"a bit\"";
1119	delete $INC{"cf.pm"};	2436	delete $INC{"cf.pm"};
1120		2437
1121	# don't, removes xs symbols, too,	2438	# don't, removes xs symbols, too,
1122	# and global variables created in xs	2439	# and global variables created in xs
1123	#Symbol::delete_package __PACKAGE__;	2440	#Symbol::delete_package __PACKAGE__;
1124		2441
1125	# reload cf.pm	2442	warn "unload completed, starting to reload now";
		2443
1126	$msg->("reloading cf.pm");	2444	warn "reloading cf.pm";
1127	require cf;	2445	require cf;
		2446	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1128		2447
1129	# load config and database again	2448	warn "loading config and database again";
1130	cf::cfg_load;	2449	cf::cfg_load;
1131	cf::db_load;
1132		2450
1133	# load extensions	2451	warn "loading extensions";
1134	$msg->("load extensions");
1135	cf::load_extensions;	2452	cf::load_extensions;
1136		2453
1137	# reattach attachments to objects	2454	warn "reattaching attachments to objects/players";
1138	$msg->("reattach");
1139	_global_reattach;	2455	_global_reattach;
		2456	warn "reattaching attachments to maps";
		2457	reattach $_ for values %MAP;
		2458
		2459	warn "loading reloadable resources";
		2460	init_resources;
		2461
		2462	warn "leaving sync_job";
		2463
		2464	1
		2465	} or do {
		2466	warn $@;
		2467	warn "error while reloading, exiting.";
		2468	exit 1;
1140	};	2469	};
1141	$msg->($@) if $@;
1142		2470
1143	$msg->("reloaded");	2471	warn "reloaded";
1144	};	2472	};
1145		2473
1146	sub perl_reload() {	2474	our $RELOAD_WATCHER; # used only during reload
1147	_perl_reload {
1148	warn $_[0];
1149	print "$_[0]\n";
1150	};
1151	}
1152		2475
1153	register "<global>", __PACKAGE__;
1154
1155	register_command "perl-reload" => sub {	2476	register_command "reload" => sub {
1156	my ($who, $arg) = @_;	2477	my ($who, $arg) = @_;
1157		2478
1158	if ($who->flag (FLAG_WIZ)) {	2479	if ($who->flag (FLAG_WIZ)) {
1159	_perl_reload {	2480	$who->message ("reloading server.");
1160	warn $_[0];	2481
1161	$who->message ($_[0]);	2482	# doing reload synchronously and two reloads happen back-to-back,
		2483	# coro crashes during coro_state_free->destroy here.
		2484
		2485	$RELOAD_WATCHER ||= Event->timer (
		2486	reentrant => 0,
		2487	after => 0,
		2488	data => WF_AUTOCANCEL,
		2489	cb => sub {
		2490	reload;
		2491	undef $RELOAD_WATCHER;
		2492	},
1162	};	2493	);
1163	}	2494	}
1164	};	2495	};
1165		2496
1166	unshift @INC, $LIBDIR;	2497	unshift @INC, $LIBDIR;
1167		2498
		2499	my $bug_warning = 0;
		2500
1168	$TICK_WATCHER = Event->timer (	2501	$TICK_WATCHER = Event->timer (
		2502	reentrant => 0,
		2503	parked => 1,
1169	prio => 1,	2504	prio => 0,
1170	async => 1,
1171	at => $NEXT_TICK || 1,	2505	at => $NEXT_TICK || $TICK,
		2506	data => WF_AUTOCANCEL,
1172	cb => sub {	2507	cb => sub {
		2508	if ($Coro::current != $Coro::main) {
		2509	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2510	unless ++$bug_warning > 10;
		2511	return;
		2512	}
		2513
		2514	$NOW = Event::time;
		2515
1173	cf::server_tick; # one server iteration	2516	cf::server_tick; # one server iteration
1174		2517	$RUNTIME += $TICK;
1175	my $NOW = Event::time;
1176	$NEXT_TICK += $TICK;	2518	$NEXT_TICK += $TICK;
1177		2519
		2520	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2521	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2522	Coro::async_pool {
		2523	write_runtime
		2524	or warn "ERROR: unable to write runtime file: $!";
		2525	};
		2526	}
		2527
		2528	$WAIT_FOR_TICK->broadcast;
		2529	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2530
		2531	# my $AFTER = Event::time;
		2532	# warn $AFTER - $NOW;#d#
		2533
1178	# if we are delayed by four ticks or more, skip them all	2534	# if we are delayed by four ticks or more, skip them all
1179	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2535	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1180		2536
1181	$TICK_WATCHER->at ($NEXT_TICK);	2537	$TICK_WATCHER->at ($NEXT_TICK);
1182	$TICK_WATCHER->start;	2538	$TICK_WATCHER->start;
1183	},	2539	},
1184	);	2540	);
1185		2541
		2542	{
		2543	BDB::max_poll_time $TICK * 0.1;
		2544	$BDB_POLL_WATCHER = Event->io (
		2545	reentrant => 0,
		2546	fd => BDB::poll_fileno,
		2547	poll => 'r',
		2548	prio => 0,
		2549	data => WF_AUTOCANCEL,
		2550	cb => \&BDB::poll_cb,
		2551	);
		2552	BDB::min_parallel 8;
		2553
		2554	BDB::set_sync_prepare {
		2555	my $status;
		2556	my $current = $Coro::current;
		2557	(
		2558	sub {
		2559	$status = $!;
		2560	$current->ready; undef $current;
		2561	},
		2562	sub {
		2563	Coro::schedule while defined $current;
		2564	$! = $status;
		2565	},
		2566	)
		2567	};
		2568
		2569	unless ($DB_ENV) {
		2570	$DB_ENV = BDB::db_env_create;
		2571
		2572	cf::sync_job {
		2573	eval {
		2574	BDB::db_env_open
		2575	$DB_ENV,
		2576	$BDB_ENV_DIR,
		2577	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2578	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2579	0666;
		2580
		2581	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2582
		2583	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2584	$DB_ENV->set_lk_detect;
		2585	};
		2586
		2587	cf::cleanup "db_env_open(db): $@" if $@;
		2588	};
		2589	}
		2590	}
		2591
		2592	{
		2593	IO::AIO::min_parallel 8;
		2594
		2595	undef $Coro::AIO::WATCHER;
1186	IO::AIO::max_poll_time $TICK * 0.2;	2596	IO::AIO::max_poll_time $TICK * 0.1;
1187		2597	$AIO_POLL_WATCHER = Event->io (
1188	Event->io (fd => IO::AIO::poll_fileno,	2598	reentrant => 0,
		2599	data => WF_AUTOCANCEL,
		2600	fd => IO::AIO::poll_fileno,
1189	poll => 'r',	2601	poll => 'r',
1190	prio => 5,	2602	prio => 6,
1191	cb => \&IO::AIO::poll_cb);	2603	cb => \&IO::AIO::poll_cb,
		2604	);
		2605	}
		2606
		2607	END { cf::emergency_save }
1192		2608
1193	1	2609	1
1194		2610

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