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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.53 by root, Tue Aug 29 13:11:58 2006 UTC vs.
Revision 1.223 by root, Sun Mar 11 02:12:44 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;
		24	use IO::AIO 2.32 ();
		25	use YAML::Syck ();
10	use Time::HiRes;	26	use Time::HiRes;
11	use Event;	27	use Compress::LZF;
		28
		29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		30
12	$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
13		32
14	use strict;	33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
15		34
16	_reload_1;	35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
		36	$YAML::Syck::ImplicitUnicode = 1;
17		37
		38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		39
18	our %COMMAND = ();	40	our %COMMAND = ();
		41	our %COMMAND_TIME = ();
		42
		43	our @EXTS = (); # list of extension package names
		44	our %EXTCMD = ();
		45	our %EXT_CORO = (); # coroutines bound to extensions
		46	our %EXT_MAP = (); # pluggable maps
		47
		48	our $RELOAD; # number of reloads so far
19	our @EVENT;	49	our @EVENT;
20	our %PROP_TYPE;	50	our $LIBDIR = datadir . "/ext";
21	our %PROP_IDX;
22	our $LIBDIR = maps_directory "perl";
23		51
24	our $TICK = MAX_TIME * 1e-6;	52	our $TICK = MAX_TIME * 1e-6;
25	our $TICK_WATCHER;	53	our $TICK_WATCHER;
		54	our $AIO_POLL_WATCHER;
		55	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
26	our $NEXT_TICK;	56	our $NEXT_TICK;
		57	our $NOW;
		58	our $USE_FSYNC = 1; # use fsync to write maps - default off
		59
		60	our $BDB_POLL_WATCHER;
		61	our $DB_ENV;
		62
		63	our %CFG;
		64
		65	our $UPTIME; $UPTIME ||= time;
		66	our $RUNTIME;
		67
		68	our %PLAYER; # all users
		69	our %MAP; # all maps
		70	our $LINK_MAP; # the special {link} map, which is always available
		71	our $RANDOM_MAPS = cf::localdir . "/random";
		72	our $BDB_ENV_DIR = cf::localdir . "/db";
		73
		74	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		75	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		76
		77	# used to convert map paths into valid unix filenames by replacing / by ∕
		78	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		79
		80	binmode STDOUT;
		81	binmode STDERR;
		82
		83	# read virtual server time, if available
		84	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		85	open my $fh, "<", cf::localdir . "/runtime"
		86	or die "unable to read runtime file: $!";
		87	$RUNTIME = <$fh> + 0.;
		88	}
		89
		90	mkdir cf::localdir;
		91	mkdir cf::localdir . "/" . cf::playerdir;
		92	mkdir cf::localdir . "/" . cf::tmpdir;
		93	mkdir cf::localdir . "/" . cf::uniquedir;
		94	mkdir $RANDOM_MAPS;
		95	mkdir $BDB_ENV_DIR;
		96
		97	our $EMERGENCY_POSITION;
		98
		99	sub cf::map::normalise;
		100
		101	#############################################################################
		102
		103	=head2 GLOBAL VARIABLES
		104
		105	=over 4
		106
		107	=item $cf::UPTIME
		108
		109	The timestamp of the server start (so not actually an uptime).
		110
		111	=item $cf::RUNTIME
		112
		113	The time this server has run, starts at 0 and is increased by $cf::TICK on
		114	every server tick.
		115
		116	=item $cf::LIBDIR
		117
		118	The perl library directory, where extensions and cf-specific modules can
		119	be found. It will be added to C<@INC> automatically.
		120
		121	=item $cf::NOW
		122
		123	The time of the last (current) server tick.
		124
		125	=item $cf::TICK
		126
		127	The interval between server ticks, in seconds.
		128
		129	=item %cf::CFG
		130
		131	Configuration for the server, loaded from C</etc/crossfire/config>, or
		132	from wherever your confdir points to.
		133
		134	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		135
		136	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		137	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		138	processing has been done. Call C<< ->wait >> on them to maximise the
		139	window of cpu time available, or simply to synchronise to the server tick.
		140
		141	=back
		142
		143	=cut
27		144
28	BEGIN {	145	BEGIN {
29	*CORE::GLOBAL::warn = sub {	146	*CORE::GLOBAL::warn = sub {
30	my $msg = join "", @_;	147	my $msg = join "", @_;
		148	utf8::encode $msg;
		149
31	$msg .= "\n"	150	$msg .= "\n"
32	unless $msg =~ /\n$/;	151	unless $msg =~ /\n$/;
33		152
34	print STDERR "cfperl: $msg";
35	LOG llevError, "cfperl: $msg";	153	LOG llevError, $msg;
36	};	154	};
37	}	155	}
38		156
39	my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply!	157	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
40		158	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
41	# generate property mutators	159	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
42	sub prop_gen {	160	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
43	my ($prefix, $class) = @_;	161	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
44
45	no strict 'refs';
46
47	for my $prop (keys %PROP_TYPE) {
48	$prop =~ /^\Q$prefix\E_(.*$)/ or next;
49	my $sub = lc $1;
50
51	my $type = $PROP_TYPE{$prop};
52	my $idx = $PROP_IDX {$prop};
53
54	*{"$class\::get_$sub"} = *{"$class\::$sub"} = sub {
55	$_[0]->get_property ($type, $idx)
56	};
57
58	*{"$class\::set_$sub"} = sub {
59	$_[0]->set_property ($type, $idx, $_[1]);
60	} unless $ignore_set{$prop};
61	}
62	}
63
64	# auto-generate most of the API
65
66	prop_gen OBJECT_PROP => "cf::object";
67	# CFAPI_OBJECT_ANIMATION?
68	prop_gen PLAYER_PROP => "cf::object::player";
69
70	prop_gen MAP_PROP => "cf::map";
71	prop_gen ARCH_PROP => "cf::arch";
72
73	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	162	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
74		163
75	# we bless all objects into (empty) derived classes to force a method lookup	164	# we bless all objects into (empty) derived classes to force a method lookup
76	# within the Safe compartment.	165	# within the Safe compartment.
77	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {	166	for my $pkg (qw(
		167	cf::global cf::attachable
		168	cf::object cf::object::player
		169	cf::client cf::player
		170	cf::arch cf::living
		171	cf::map cf::party cf::region
		172	)) {
78	no strict 'refs';	173	no strict 'refs';
79	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	174	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
80	}	175	}
81		176
82	$Event::DIED = sub {	177	$Event::DIED = sub {
83	warn "error in event callback: @_";	178	warn "error in event callback: @_";
84	};	179	};
85		180
86	my %ext_pkg;	181	=head2 UTILITY FUNCTIONS
87	my @exts;
88	my @hook;
89	my %command;
90	my %extcmd;
91		182
92	#############################################################################	183	=over 4
93	# utility functions	184
		185	=item dumpval $ref
		186
		187	=cut
		188
		189	sub dumpval {
		190	eval {
		191	local $SIG{__DIE__};
		192	my $d;
		193	if (1) {
		194	$d = new Data::Dumper([$_[0]], ["*var"]);
		195	$d->Terse(1);
		196	$d->Indent(2);
		197	$d->Quotekeys(0);
		198	$d->Useqq(1);
		199	#$d->Bless(...);
		200	$d->Seen($_[1]) if @_ > 1;
		201	$d = $d->Dump();
		202	}
		203	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		204	$d
		205	} || "[unable to dump $_[0]: '$@']";
		206	}
94		207
95	use JSON::Syck (); # TODO# replace by JSON::PC once working	208	use JSON::Syck (); # TODO# replace by JSON::PC once working
		209
		210	=item $ref = cf::from_json $json
		211
		212	Converts a JSON string into the corresponding perl data structure.
		213
		214	=cut
96		215
97	sub from_json($) {	216	sub from_json($) {
98	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs	217	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
99	JSON::Syck::Load $_[0]	218	JSON::Syck::Load $_[0]
100	}	219	}
101		220
		221	=item $json = cf::to_json $ref
		222
		223	Converts a perl data structure into its JSON representation.
		224
		225	=cut
		226
102	sub to_json($) {	227	sub to_json($) {
103	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	228	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
104	JSON::Syck::Dump $_[0]	229	JSON::Syck::Dump $_[0]
105	}	230	}
106		231
		232	=item cf::lock_wait $string
		233
		234	Wait until the given lock is available. See cf::lock_acquire.
		235
		236	=item my $lock = cf::lock_acquire $string
		237
		238	Wait until the given lock is available and then acquires it and returns
		239	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		240	for example when the coroutine gets canceled), the lock is automatically
		241	returned.
		242
		243	Lock names should begin with a unique identifier (for example, cf::map::find
		244	uses map_find and cf::map::load uses map_load).
		245
		246	=cut
		247
		248	our %LOCK;
		249
		250	sub lock_wait($) {
		251	my ($key) = @_;
		252
		253	# wait for lock, if any
		254	while ($LOCK{$key}) {
		255	push @{ $LOCK{$key} }, $Coro::current;
		256	Coro::schedule;
		257	}
		258	}
		259
		260	sub lock_acquire($) {
		261	my ($key) = @_;
		262
		263	# wait, to be sure we are not locked
		264	lock_wait $key;
		265
		266	$LOCK{$key} = [];
		267
		268	Coro::guard {
		269	# wake up all waiters, to be on the safe side
		270	$_->ready for @{ delete $LOCK{$key} };
		271	}
		272	}
		273
		274	sub freeze_mainloop {
		275	return unless $TICK_WATCHER->is_active;
		276
		277	my $guard = Coro::guard {
		278	$TICK_WATCHER->start;
		279	};
		280	$TICK_WATCHER->stop;
		281	$guard
		282	}
		283
		284	=item cf::async { BLOCK }
		285
		286	Currently the same as Coro::async_pool, meaning you cannot use
		287	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		288	thing you are allowed to do is call C<prio> on it.
		289
		290	=cut
		291
		292	BEGIN { *async = \&Coro::async_pool }
		293
		294	=item cf::sync_job { BLOCK }
		295
		296	The design of crossfire+ requires that the main coro ($Coro::main) is
		297	always able to handle events or runnable, as crossfire+ is only partly
		298	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		299
		300	If it must be done, put the blocking parts into C<sync_job>. This will run
		301	the given BLOCK in another coroutine while waiting for the result. The
		302	server will be frozen during this time, so the block should either finish
		303	fast or be very important.
		304
		305	=cut
		306
		307	sub sync_job(&) {
		308	my ($job) = @_;
		309
		310	if ($Coro::current == $Coro::main) {
		311	# this is the main coro, too bad, we have to block
		312	# till the operation succeeds, freezing the server :/
		313
		314	# TODO: use suspend/resume instead
		315	# (but this is cancel-safe)
		316	my $freeze_guard = freeze_mainloop;
		317
		318	my $busy = 1;
		319	my @res;
		320
		321	(async {
		322	@res = eval { $job->() };
		323	warn $@ if $@;
		324	undef $busy;
		325	})->prio (Coro::PRIO_MAX);
		326
		327	while ($busy) {
		328	Coro::cede or Event::one_event;
		329	}
		330
		331	wantarray ? @res : $res[0]
		332	} else {
		333	# we are in another coroutine, how wonderful, everything just works
		334
		335	$job->()
		336	}
		337	}
		338
		339	=item $coro = cf::async_ext { BLOCK }
		340
		341	Like async, but this coro is automatically being canceled when the
		342	extension calling this is being unloaded.
		343
		344	=cut
		345
		346	sub async_ext(&) {
		347	my $cb = shift;
		348
		349	my $coro = &Coro::async ($cb);
		350
		351	$coro->on_destroy (sub {
		352	delete $EXT_CORO{$coro+0};
		353	});
		354	$EXT_CORO{$coro+0} = $coro;
		355
		356	$coro
		357	}
		358
		359	sub write_runtime {
		360	my $guard = cf::lock_acquire "write_runtime";
		361
		362	my $runtime = cf::localdir . "/runtime";
		363
		364	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		365	or return;
		366
		367	my $value = $cf::RUNTIME + 90 + 10;
		368	# 10 is the runtime save interval, for a monotonic clock
		369	# 60 allows for the watchdog to kill the server.
		370
		371	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		372	and return;
		373
		374	# always fsync - this file is important
		375	aio_fsync $fh
		376	and return;
		377
		378	close $fh
		379	or return;
		380
		381	aio_rename "$runtime~", $runtime
		382	and return;
		383
		384	1
		385	}
		386
		387	=back
		388
		389	=cut
		390
107	#############################################################################	391	#############################################################################
108	# "new" plug-in system
109		392
110	=item $object->attach ($attachment, key => $value...)	393	=head2 ATTACHABLE OBJECTS
111		394
112	=item $object->detach ($attachment)	395	Many objects in crossfire are so-called attachable objects. That means you can
		396	attach callbacks/event handlers (a collection of which is called an "attachment")
		397	to it. All such attachable objects support the following methods.
113		398
114	Attach/detach a pre-registered attachment to an object.	399	In the following description, CLASS can be any of C<global>, C<object>
		400	C<player>, C<client> or C<map> (i.e. the attachable objects in
		401	crossfire+).
115		402
116	=item $player->attach ($attachment, key => $value...)	403	=over 4
117		404
118	=item $player->detach ($attachment)
119
120	Attach/detach a pre-registered attachment to a player.
121
122	=item $map->attach ($attachment, key => $value...)	405	=item $attachable->attach ($attachment, key => $value...)
123		406
124	=item $map->detach ($attachment)	407	=item $attachable->detach ($attachment)
125		408
126	Attach/detach a pre-registered attachment to a map.	409	Attach/detach a pre-registered attachment to a specific object and give it
		410	the specified key/value pairs as arguments.
127		411
128	=item cf::attach_global ...	412	Example, attach a minesweeper attachment to the given object, making it a
		413	10x10 minesweeper game:
129		414
130	Attach handlers for global events.	415	$obj->attach (minesweeper => width => 10, height => 10);
131		416
132	This and all following C<attach_*>-functions expect any number of the	417	=item $bool = $attachable->attached ($name)
133	following handler/hook descriptions:	418
		419	Checks wether the named attachment is currently attached to the object.
		420
		421	=item cf::CLASS->attach ...
		422
		423	=item cf::CLASS->detach ...
		424
		425	Define an anonymous attachment and attach it to all objects of the given
		426	CLASS. See the next function for an explanation of its arguments.
		427
		428	You can attach to global events by using the C<cf::global> class.
		429
		430	Example, log all player logins:
		431
		432	cf::player->attach (
		433	on_login => sub {
		434	my ($pl) = @_;
		435	...
		436	},
		437	);
		438
		439	Example, attach to the jeweler skill:
		440
		441	cf::object->attach (
		442	type => cf::SKILL,
		443	subtype => cf::SK_JEWELER,
		444	on_use_skill => sub {
		445	my ($sk, $ob, $part, $dir, $msg) = @_;
		446	...
		447	},
		448	);
		449
		450	=item cf::CLASS::attachment $name, ...
		451
		452	Register an attachment by C<$name> through which attachable objects of the
		453	given CLASS can refer to this attachment.
		454
		455	Some classes such as crossfire maps and objects can specify attachments
		456	that are attached at load/instantiate time, thus the need for a name.
		457
		458	These calls expect any number of the following handler/hook descriptions:
134		459
135	=over 4	460	=over 4
136		461
137	=item prio => $number	462	=item prio => $number
138		463
…		…
140	by another C<prio> setting). Lower priority handlers get executed	465	by another C<prio> setting). Lower priority handlers get executed
141	earlier. The default priority is C<0>, and many built-in handlers are	466	earlier. The default priority is C<0>, and many built-in handlers are
142	registered at priority C<-1000>, so lower priorities should not be used	467	registered at priority C<-1000>, so lower priorities should not be used
143	unless you know what you are doing.	468	unless you know what you are doing.
144		469
		470	=item type => $type
		471
		472	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		473	given type of objects only (the additional parameter C<subtype> can be
		474	used to further limit to the given subtype).
		475
145	=item on_I<event> => \&cb	476	=item on_I<event> => \&cb
146		477
147	Call the given code reference whenever the named event happens (event is	478	Call the given code reference whenever the named event happens (event is
148	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	479	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
149	handlers are recognised generally depends on the type of object these	480	handlers are recognised generally depends on the type of object these
…		…
158	package and register them. Only handlers for eevents supported by the	489	package and register them. Only handlers for eevents supported by the
159	object/class are recognised.	490	object/class are recognised.
160		491
161	=back	492	=back
162		493
163	=item cf::attach_to_type $object_type, $subtype, ...	494	Example, define an attachment called "sockpuppet" that calls the given
		495	event handler when a monster attacks:
164		496
165	Attach handlers for a specific object type (e.g. TRANSPORT) and	497	cf::object::attachment sockpuppet =>
166	subtype. If C<$subtype> is zero or undef, matches all objects of the given	498	on_skill_attack => sub {
167	type.	499	my ($self, $victim) = @_;
		500	...
		501	}
		502	}
168		503
169	=item cf::attach_to_objects ...	504	=item $attachable->valid
170		505
171	Attach handlers to all objects. Do not use this except for debugging or	506	Just because you have a perl object does not mean that the corresponding
172	very rare events, as handlers are (obviously) called for I<all> objects in	507	C-level object still exists. If you try to access an object that has no
173	the game.	508	valid C counterpart anymore you get an exception at runtime. This method
174		509	can be used to test for existence of the C object part without causing an
175	=item cf::attach_to_players ...	510	exception.
176
177	Attach handlers to all players.
178
179	=item cf::attach_to_maps ...
180
181	Attach handlers to all maps.
182
183	=item cf:register_attachment $name, ...
184
185	Register an attachment by name through which objects can refer to this
186	attachment.
187
188	=item cf:register_map_attachment $name, ...
189
190	Register an attachment by name through which maps can refer to this
191	attachment.
192		511
193	=cut	512	=cut
194		513
195	# the following variables are defined in .xs and must not be re-created	514	# the following variables are defined in .xs and must not be re-created
196	our @CB_GLOBAL = (); # registry for all global events	515	our @CB_GLOBAL = (); # registry for all global events
		516	our @CB_ATTACHABLE = (); # registry for all attachables
197	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	517	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
198	our @CB_PLAYER = ();	518	our @CB_PLAYER = ();
		519	our @CB_CLIENT = ();
199	our @CB_TYPE = (); # registry for type (cf-object class) based events	520	our @CB_TYPE = (); # registry for type (cf-object class) based events
200	our @CB_MAP = ();	521	our @CB_MAP = ();
201		522
202	my %attachment;	523	my %attachment;
203		524
		525	sub cf::attachable::thawer_merge {
		526	# simply override everything except _meta
		527	local $_[0]{_meta};
		528	%{$_[0]} = %{$_[1]};
		529	}
		530
204	sub _attach_cb($\%$$$) {	531	sub _attach_cb($$$$) {
205	my ($registry, $undo, $event, $prio, $cb) = @_;	532	my ($registry, $event, $prio, $cb) = @_;
206		533
207	use sort 'stable';	534	use sort 'stable';
208		535
209	$cb = [$prio, $cb];	536	$cb = [$prio, $cb];
210		537
211	@{$registry->[$event]} = sort	538	@{$registry->[$event]} = sort
212	{ $a->[0] cmp $b->[0] }	539	{ $a->[0] cmp $b->[0] }
213	@{$registry->[$event] || []}, $cb;	540	@{$registry->[$event] || []}, $cb;
214
215	push @{$undo->{cb}}, [$event, $cb];
216	}	541	}
		542
		543	# hack
		544	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
217		545
218	# attach handles attaching event callbacks	546	# attach handles attaching event callbacks
219	# the only thing the caller has to do is pass the correct	547	# the only thing the caller has to do is pass the correct
220	# registry (== where the callback attaches to).	548	# registry (== where the callback attaches to).
221	sub _attach(\@$@) {	549	sub _attach {
222	my ($registry, $klass, @arg) = @_;	550	my ($registry, $klass, @arg) = @_;
223		551
		552	my $object_type;
224	my $prio = 0;	553	my $prio = 0;
225
226	my %undo = (
227	registry => $registry,
228	cb => [],
229	);
230
231	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	554	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		555
		556	#TODO: get rid of this hack
		557	if ($attachable_klass{$klass}) {
		558	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		559	}
232		560
233	while (@arg) {	561	while (@arg) {
234	my $type = shift @arg;	562	my $type = shift @arg;
235		563
236	if ($type eq "prio") {	564	if ($type eq "prio") {
237	$prio = shift @arg;	565	$prio = shift @arg;
238		566
		567	} elsif ($type eq "type") {
		568	$object_type = shift @arg;
		569	$registry = $CB_TYPE[$object_type] ||= [];
		570
		571	} elsif ($type eq "subtype") {
		572	defined $object_type or Carp::croak "subtype specified without type";
		573	my $object_subtype = shift @arg;
		574	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		575
239	} elsif ($type eq "package") {	576	} elsif ($type eq "package") {
240	my $pkg = shift @arg;	577	my $pkg = shift @arg;
241		578
242	while (my ($name, $id) = each %cb_id) {	579	while (my ($name, $id) = each %cb_id) {
243	if (my $cb = $pkg->can ($name)) {	580	if (my $cb = $pkg->can ($name)) {
244	_attach_cb $registry, %undo, $id, $prio, $cb;	581	_attach_cb $registry, $id, $prio, $cb;
245	}	582	}
246	}	583	}
247		584
248	} elsif (exists $cb_id{$type}) {	585	} elsif (exists $cb_id{$type}) {
249	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;	586	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
250		587
251	} elsif (ref $type) {	588	} elsif (ref $type) {
252	warn "attaching objects not supported, ignoring.\n";	589	warn "attaching objects not supported, ignoring.\n";
253		590
254	} else {	591	} else {
255	shift @arg;	592	shift @arg;
256	warn "attach argument '$type' not supported, ignoring.\n";	593	warn "attach argument '$type' not supported, ignoring.\n";
257	}	594	}
258	}	595	}
259
260	\%undo
261	}	596	}
262		597
263	sub _attach_attachment {	598	sub _object_attach {
264	my ($obj, $name, %arg) = @_;	599	my ($obj, $name, %arg) = @_;
265		600
266	my $res;	601	return if exists $obj->{_attachment}{$name};
267		602
268	if (my $attach = $attachment{$name}) {	603	if (my $attach = $attachment{$name}) {
269	my $registry = $obj->registry;	604	my $registry = $obj->registry;
270		605
271	for (@$attach) {	606	for (@$attach) {
272	my ($klass, @attach) = @$_;	607	my ($klass, @attach) = @$_;
273	$res = _attach @$registry, $klass, @attach;	608	_attach $registry, $klass, @attach;
274	}	609	}
275		610
276	$obj->{$name} = \%arg;	611	$obj->{$name} = \%arg;
277	} else {	612	} else {
278	warn "object uses attachment '$name' that is not available, postponing.\n";	613	warn "object uses attachment '$name' that is not available, postponing.\n";
279	}	614	}
280		615
281	$obj->{_attachment}{$name} = undef;	616	$obj->{_attachment}{$name} = undef;
282
283	$res->{attachment} = $name;
284	$res
285	}	617	}
286		618
287	sub cf::object::attach {	619	sub cf::attachable::attach {
288	my ($obj, $name, %arg) = @_;	620	if (ref $_[0]) {
		621	_object_attach @_;
		622	} else {
		623	_attach shift->_attach_registry, @_;
		624	}
		625	};
289		626
290	_attach_attachment $obj, $name, %arg;	627	# all those should be optimised
291	}
292
293	sub cf::player::attach {
294	my ($obj, $name, %arg) = @_;
295
296	_attach_attachment $obj, $name, %arg;
297	}
298
299	sub cf::map::attach {
300	my ($obj, $name, %arg) = @_;
301
302	_attach_attachment $obj, $name, %arg;
303	}
304
305	sub cf::object::detach {	628	sub cf::attachable::detach {
306	my ($obj, $name) = @_;	629	my ($obj, $name) = @_;
307	die;#d#	630
308	}	631	if (ref $obj) {
309	sub cf::player::detach {	632	delete $obj->{_attachment}{$name};
		633	reattach ($obj);
		634	} else {
		635	Carp::croak "cannot, currently, detach class attachments";
		636	}
		637	};
		638
		639	sub cf::attachable::attached {
310	my ($obj, $name) = @_;	640	my ($obj, $name) = @_;
311	die;#d#
312	}
313	sub cf::map::detach {
314	my ($obj, $name) = @_;
315	die;#d#
316	}
317		641
318	sub attach_global {	642	exists $obj->{_attachment}{$name}
319	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
320	}	643	}
321		644
322	sub attach_to_type {	645	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
323	my $type = shift;	646	eval "#line " . __LINE__ . " 'cf.pm'
324	my $subtype = shift;	647	sub cf::\L$klass\E::_attach_registry {
		648	(\\\@CB_$klass, KLASS_$klass)
		649	}
325		650
326	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_	651	sub cf::\L$klass\E::attachment {
327	}
328
329	sub attach_to_objects {
330	_attach @CB_OBJECT, KLASS_OBJECT, @_
331	}
332
333	sub attach_to_players {
334	_attach @CB_PLAYER, KLASS_PLAYER, @_
335	}
336
337	sub attach_to_maps {
338	_attach @CB_MAP, KLASS_MAP, @_
339	}
340
341	sub register_attachment {
342	my $name = shift;	652	my \$name = shift;
343		653
344	$attachment{$name} = [[KLASS_OBJECT, @_]];
345	}
346
347	sub register_map_attachment {
348	my $name = shift;
349
350	$attachment{$name} = [[KLASS_MAP, @_]];	654	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		655	}
		656	";
		657	die if $@;
351	}	658	}
352		659
353	our $override;	660	our $override;
354	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	661	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
355		662
…		…
369	for (@$callbacks) {	676	for (@$callbacks) {
370	eval { &{$_->[1]} };	677	eval { &{$_->[1]} };
371		678
372	if ($@) {	679	if ($@) {
373	warn "$@";	680	warn "$@";
374	warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n";	681	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
375	override;	682	override;
376	}	683	}
377		684
378	return 1 if $override;	685	return 1 if $override;
379	}	686	}
380		687
381	0	688	0
382	}	689	}
		690
		691	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		692
		693	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		694
		695	Generate an object-specific event with the given arguments.
		696
		697	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		698	removed in future versions), and there is no public API to access override
		699	results (if you must, access C<@cf::invoke_results> directly).
		700
		701	=back
		702
		703	=cut
383		704
384	#############################################################################	705	#############################################################################
385	# object support	706	# object support
386		707
387	sub instantiate {
388	my ($obj, $data) = @_;
389
390	$data = from_json $data;
391
392	for (@$data) {
393	my ($name, $args) = @$_;
394
395	$obj->attach ($name, %{$args || {} });
396	}
397	}
398
399	# basically do the same as instantiate, without calling instantiate
400	sub reattach {	708	sub reattach {
		709	# basically do the same as instantiate, without calling instantiate
401	my ($obj) = @_;	710	my ($obj) = @_;
		711
		712	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		713
402	my $registry = $obj->registry;	714	my $registry = $obj->registry;
403		715
404	@$registry = ();	716	@$registry = ();
405		717
406	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	718	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
407		719
408	for my $name (keys %{ $obj->{_attachment} || {} }) {	720	for my $name (keys %{ $obj->{_attachment} || {} }) {
409	if (my $attach = $attachment{$name}) {	721	if (my $attach = $attachment{$name}) {
410	for (@$attach) {	722	for (@$attach) {
411	my ($klass, @attach) = @$_;	723	my ($klass, @attach) = @$_;
412	_attach @$registry, $klass, @attach;	724	_attach $registry, $klass, @attach;
413	}	725	}
414	} else {	726	} else {
415	warn "object uses attachment '$name' that is not available, postponing.\n";	727	warn "object uses attachment '$name' that is not available, postponing.\n";
416	}	728	}
417	}	729	}
418	}	730	}
419		731
420	sub object_freezer_save {	732	cf::attachable->attach (
421	my ($filename, $objs) = @_;
422
423	if (@$objs) {
424	open my $fh, ">:raw", "$filename.pst~";
425	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
426	close $fh;
427	chmod SAVE_MODE, "$filename.pst~";
428	rename "$filename.pst~", "$filename.pst";
429	} else {
430	unlink "$filename.pst";
431	}
432
433	chmod SAVE_MODE, "$filename~";
434	rename "$filename~", $filename;
435	}
436
437	sub object_thawer_load {
438	my ($filename) = @_;
439
440	open my $fh, "<:raw:perlio", "$filename.pst"
441	or return;
442
443	eval { local $/; (Storable::thaw <$fh>)->{objs} }
444	}
445
446	attach_to_objects
447	prio => -1000000,	733	prio => -1000000,
		734	on_instantiate => sub {
		735	my ($obj, $data) = @_;
		736
		737	$data = from_json $data;
		738
		739	for (@$data) {
		740	my ($name, $args) = @$_;
		741
		742	$obj->attach ($name, %{$args || {} });
		743	}
		744	},
		745	on_reattach => \&reattach,
448	on_clone => sub {	746	on_clone => sub {
449	my ($src, $dst) = @_;	747	my ($src, $dst) = @_;
450		748
451	@{$dst->registry} = @{$src->registry};	749	@{$dst->registry} = @{$src->registry};
452		750
453	%$dst = %$src;	751	%$dst = %$src;
454		752
455	%{$dst->{_attachment}} = %{$src->{_attachment}}	753	%{$dst->{_attachment}} = %{$src->{_attachment}}
456	if exists $src->{_attachment};	754	if exists $src->{_attachment};
457	},	755	},
458	;	756	);
		757
		758	sub object_freezer_save {
		759	my ($filename, $rdata, $objs) = @_;
		760
		761	sync_job {
		762	if (length $$rdata) {
		763	warn sprintf "saving %s (%d,%d)\n",
		764	$filename, length $$rdata, scalar @$objs;
		765
		766	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		767	chmod SAVE_MODE, $fh;
		768	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		769	aio_fsync $fh if $cf::USE_FSYNC;
		770	close $fh;
		771
		772	if (@$objs) {
		773	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		774	chmod SAVE_MODE, $fh;
		775	my $data = Storable::nfreeze { version => 1, objs => $objs };
		776	aio_write $fh, 0, (length $data), $data, 0;
		777	aio_fsync $fh if $cf::USE_FSYNC;
		778	close $fh;
		779	aio_rename "$filename.pst~", "$filename.pst";
		780	}
		781	} else {
		782	aio_unlink "$filename.pst";
		783	}
		784
		785	aio_rename "$filename~", $filename;
		786	} else {
		787	warn "FATAL: $filename~: $!\n";
		788	}
		789	} else {
		790	aio_unlink $filename;
		791	aio_unlink "$filename.pst";
		792	}
		793	}
		794	}
		795
		796	sub object_freezer_as_string {
		797	my ($rdata, $objs) = @_;
		798
		799	use Data::Dumper;
		800
		801	$$rdata . Dumper $objs
		802	}
		803
		804	sub object_thawer_load {
		805	my ($filename) = @_;
		806
		807	my ($data, $av);
		808
		809	(aio_load $filename, $data) >= 0
		810	or return;
		811
		812	unless (aio_stat "$filename.pst") {
		813	(aio_load "$filename.pst", $av) >= 0
		814	or return;
		815	$av = eval { (Storable::thaw $av)->{objs} };
		816	}
		817
		818	warn sprintf "loading %s (%d)\n",
		819	$filename, length $data, scalar @{$av || []};#d#
		820	return ($data, $av);
		821	}
459		822
460	#############################################################################	823	#############################################################################
461	# old plug-in events	824	# command handling &c
462		825
463	sub inject_event {	826	=item cf::register_command $name => \&callback($ob,$args);
464	my $extension = shift;
465	my $event_code = shift;
466		827
467	my $cb = $hook[$event_code]{$extension}	828	Register a callback for execution when the client sends the user command
468	or return;	829	$name.
469		830
470	&$cb	831	=cut
471	}
472
473	sub inject_global_event {
474	my $event = shift;
475
476	my $cb = $hook[$event]
477	or return;
478
479	List::Util::max map &$_, values %$cb
480	}
481
482	sub inject_command {
483	my ($name, $obj, $params) = @_;
484
485	for my $cmd (@{ $command{$name} }) {
486	$cmd->[1]->($obj, $params);
487	}
488
489	-1
490	}
491		832
492	sub register_command {	833	sub register_command {
493	my ($name, $time, $cb) = @_;	834	my ($name, $cb) = @_;
494		835
495	my $caller = caller;	836	my $caller = caller;
496	#warn "registering command '$name/$time' to '$caller'";	837	#warn "registering command '$name/$time' to '$caller'";
497		838
498	push @{ $command{$name} }, [$time, $cb, $caller];	839	push @{ $COMMAND{$name} }, [$caller, $cb];
499	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
500	}	840	}
		841
		842	=item cf::register_extcmd $name => \&callback($pl,$packet);
		843
		844	Register a callbackf ro execution when the client sends an extcmd packet.
		845
		846	If the callback returns something, it is sent back as if reply was being
		847	called.
		848
		849	=cut
501		850
502	sub register_extcmd {	851	sub register_extcmd {
503	my ($name, $cb) = @_;	852	my ($name, $cb) = @_;
504		853
505	my $caller = caller;	854	$EXTCMD{$name} = $cb;
506	#warn "registering extcmd '$name' to '$caller'";
507
508	$extcmd{$name} = [$cb, $caller];
509	}	855	}
510		856
511	sub register {	857	cf::player->attach (
512	my ($base, $pkg) = @_;	858	on_command => sub {
		859	my ($pl, $name, $params) = @_;
513		860
514	#TODO	861	my $cb = $COMMAND{$name}
515	}	862	or return;
		863
		864	for my $cmd (@$cb) {
		865	$cmd->[1]->($pl->ob, $params);
		866	}
		867
		868	cf::override;
		869	},
		870	on_extcmd => sub {
		871	my ($pl, $buf) = @_;
		872
		873	my $msg = eval { from_json $buf };
		874
		875	if (ref $msg) {
		876	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		877	if (my %reply = $cb->($pl, $msg)) {
		878	$pl->ext_reply ($msg->{msgid}, %reply);
		879	}
		880	}
		881	} else {
		882	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		883	}
		884
		885	cf::override;
		886	},
		887	);
516		888
517	sub load_extension {	889	sub load_extension {
518	my ($path) = @_;	890	my ($path) = @_;
519		891
520	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	892	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
521	my $base = $1;	893	my $base = $1;
522	my $pkg = $1;	894	my $pkg = $1;
523	$pkg =~ s/[^[:word:]]/_/g;	895	$pkg =~ s/[^[:word:]]/_/g;
524	$pkg = "ext::$pkg";	896	$pkg = "ext::$pkg";
525		897
526	warn "loading '$path' into '$pkg'\n";	898	warn "... loading '$path' into '$pkg'\n";
527		899
528	open my $fh, "<:utf8", $path	900	open my $fh, "<:utf8", $path
529	or die "$path: $!";	901	or die "$path: $!";
530		902
531	my $source =	903	my $source =
532	"package $pkg; use strict; use utf8;\n"	904	"package $pkg; use strict; use utf8;\n"
533	. "#line 1 \"$path\"\n{\n"	905	. "#line 1 \"$path\"\n{\n"
534	. (do { local $/; <$fh> })	906	. (do { local $/; <$fh> })
535	. "\n};\n1";	907	. "\n};\n1";
536		908
537	eval $source	909	unless (eval $source) {
538	or die "$path: $@";	910	my $msg = $@ ? "$path: $@\n"
539		911	: "extension disabled.\n";
540	push @exts, $pkg;	912	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
541	$ext_pkg{$base} = $pkg;	913	warn $@;
542		914	warn "mandatory extension failed to load, exiting.\n";
543	# no strict 'refs';	915	exit 1;
544	# @{"$pkg\::ISA"} = ext::;	916	}
545		917	die $@;
546	register $base, $pkg;
547	}
548
549	sub unload_extension {
550	my ($pkg) = @_;
551
552	warn "removing extension $pkg\n";
553
554	# remove hooks
555	#TODO
556	# for my $idx (0 .. $#PLUGIN_EVENT) {
557	# delete $hook[$idx]{$pkg};
558	# }	918	}
559		919
560	# remove commands	920	push @EXTS, $pkg;
561	for my $name (keys %command) {
562	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };
563
564	if (@cb) {
565	$command{$name} = \@cb;
566	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
567	} else {
568	delete $command{$name};
569	delete $COMMAND{"$name\000"};
570	}
571	}
572
573	# remove extcmds
574	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {
575	delete $extcmd{$name};
576	}
577
578	if (my $cb = $pkg->can ("unload")) {
579	eval {
580	$cb->($pkg);
581	1
582	} or warn "$pkg unloaded, but with errors: $@";
583	}
584
585	Symbol::delete_package $pkg;
586	}	921	}
587		922
588	sub load_extensions {	923	sub load_extensions {
589	my $LIBDIR = maps_directory "perl";
590
591	for my $ext (<$LIBDIR/*.ext>) {	924	for my $ext (<$LIBDIR/*.ext>) {
592	next unless -r $ext;	925	next unless -r $ext;
593	eval {	926	eval {
594	load_extension $ext;	927	load_extension $ext;
595	1	928	1
596	} or warn "$ext not loaded: $@";	929	} or warn "$ext not loaded: $@";
597	}	930	}
598	}	931	}
599		932
600	sub _perl_reload(&) {	933	#############################################################################
		934
		935	=head2 CORE EXTENSIONS
		936
		937	Functions and methods that extend core crossfire objects.
		938
		939	=cut
		940
		941	package cf::player;
		942
		943	use Coro::AIO;
		944
		945	=head3 cf::player
		946
		947	=over 4
		948
		949	=item cf::player::find $login
		950
		951	Returns the given player object, loading it if necessary (might block).
		952
		953	=cut
		954
		955	sub playerdir($) {
		956	cf::localdir
		957	. "/"
		958	. cf::playerdir
		959	. "/"
		960	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		961	}
		962
		963	sub path($) {
		964	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		965
		966	(playerdir $login) . "/$login.pl"
		967	}
		968
		969	sub find_active($) {
		970	$cf::PLAYER{$_[0]}
		971	and $cf::PLAYER{$_[0]}->active
		972	and $cf::PLAYER{$_[0]}
		973	}
		974
		975	sub exists($) {
		976	my ($login) = @_;
		977
		978	$cf::PLAYER{$login}
		979	or cf::sync_job { !aio_stat path $login }
		980	}
		981
		982	sub find($) {
		983	return $cf::PLAYER{$_[0]} || do {
		984	my $login = $_[0];
		985
		986	my $guard = cf::lock_acquire "user_find:$login";
		987
		988	$cf::PLAYER{$_[0]} || do {
		989	my $pl = load_pl path $login
		990	or return;
		991	$cf::PLAYER{$login} = $pl
		992	}
		993	}
		994	}
		995
		996	sub save($) {
		997	my ($pl) = @_;
		998
		999	return if $pl->{deny_save};
		1000
		1001	my $path = path $pl;
		1002	my $guard = cf::lock_acquire "user_save:$path";
		1003
		1004	return if $pl->{deny_save};
		1005
		1006	aio_mkdir playerdir $pl, 0770;
		1007	$pl->{last_save} = $cf::RUNTIME;
		1008
		1009	$pl->save_pl ($path);
		1010	Coro::cede;
		1011	}
		1012
		1013	sub new($) {
		1014	my ($login) = @_;
		1015
		1016	my $self = create;
		1017
		1018	$self->ob->name ($login);
		1019	$self->{deny_save} = 1;
		1020
		1021	$cf::PLAYER{$login} = $self;
		1022
		1023	$self
		1024	}
		1025
		1026	=item $pl->quit_character
		1027
		1028	Nukes the player without looking back. If logged in, the connection will
		1029	be destroyed. May block for a long time.
		1030
		1031	=cut
		1032
		1033	sub quit_character {
		1034	my ($pl) = @_;
		1035
		1036	my $name = $pl->ob->name;
		1037
		1038	$pl->{deny_save} = 1;
		1039	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1040
		1041	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1042	$pl->deactivate;
		1043	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1044	$pl->ns->destroy if $pl->ns;
		1045
		1046	my $path = playerdir $pl;
		1047	my $temp = "$path~$cf::RUNTIME~deleting~";
		1048	aio_rename $path, $temp;
		1049	delete $cf::PLAYER{$pl->ob->name};
		1050	$pl->destroy;
		1051
		1052	my $prefix = qr<^~\Q$name\E/>;
		1053
		1054	# nuke player maps
		1055	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1056
		1057	IO::AIO::aio_rmtree $temp;
		1058	}
		1059
		1060	=item $pl->kick
		1061
		1062	Kicks a player out of the game. This destroys the connection.
		1063
		1064	=cut
		1065
		1066	sub kick {
		1067	my ($pl, $kicker) = @_;
		1068
		1069	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1070	$pl->killer ("kicked");
		1071	$pl->ns->destroy;
		1072	}
		1073
		1074	=item cf::player::list_logins
		1075
		1076	Returns am arrayref of all valid playernames in the system, can take a
		1077	while and may block, so not sync_job-capable, ever.
		1078
		1079	=cut
		1080
		1081	sub list_logins {
		1082	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1083	or return [];
		1084
		1085	my @logins;
		1086
		1087	for my $login (@$dirs) {
		1088	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1089	aio_read $fh, 0, 512, my $buf, 0 or next;
		1090	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1091
		1092	utf8::decode $login;
		1093	push @logins, $login;
		1094	}
		1095
		1096	\@logins
		1097	}
		1098
		1099	=item $player->maps
		1100
		1101	Returns an arrayref of map paths that are private for this
		1102	player. May block.
		1103
		1104	=cut
		1105
		1106	sub maps($) {
		1107	my ($pl) = @_;
		1108
		1109	$pl = ref $pl ? $pl->ob->name : $pl;
		1110
		1111	my $files = aio_readdir playerdir $pl
		1112	or return;
		1113
		1114	my @paths;
		1115
		1116	for (@$files) {
		1117	utf8::decode $_;
		1118	next if /\.(?:pl|pst)$/;
		1119	next unless /^$PATH_SEP/o;
		1120
		1121	push @paths, cf::map::normalise "~$pl/$_";
		1122	}
		1123
		1124	\@paths
		1125	}
		1126
		1127	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1128
		1129	Sends an ext reply to the player.
		1130
		1131	=cut
		1132
		1133	sub ext_reply($$$%) {
		1134	my ($self, $id, %msg) = @_;
		1135
		1136	$msg{msgid} = $id;
		1137
		1138	$self->send ("ext " . cf::to_json \%msg);
		1139	}
		1140
		1141	package cf;
		1142
		1143	=back
		1144
		1145
		1146	=head3 cf::map
		1147
		1148	=over 4
		1149
		1150	=cut
		1151
		1152	package cf::map;
		1153
		1154	use Fcntl;
		1155	use Coro::AIO;
		1156
		1157	use overload
		1158	'""' => \&as_string,
		1159	fallback => 1;
		1160
		1161	our $MAX_RESET = 3600;
		1162	our $DEFAULT_RESET = 3000;
		1163
		1164	sub generate_random_map {
		1165	my ($self, $rmp) = @_;
		1166	# mit "rum" bekleckern, nicht
		1167	$self->_create_random_map (
		1168	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1169	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1170	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1171	$rmp->{exit_on_final_map},
		1172	$rmp->{xsize}, $rmp->{ysize},
		1173	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1174	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1175	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1176	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1177	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1178	(cf::region::find $rmp->{region}), $rmp->{custom}
		1179	)
		1180	}
		1181
		1182	=item cf::map->register ($regex, $prio)
		1183
		1184	Register a handler for the map path matching the given regex at the
		1185	givne priority (higher is better, built-in handlers have priority 0, the
		1186	default).
		1187
		1188	=cut
		1189
		1190	sub register {
		1191	my (undef, $regex, $prio) = @_;
		1192	my $pkg = caller;
		1193
		1194	no strict;
		1195	push @{"$pkg\::ISA"}, __PACKAGE__;
		1196
		1197	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1198	}
		1199
		1200	# also paths starting with '/'
		1201	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1202
		1203	sub thawer_merge {
		1204	my ($self, $merge) = @_;
		1205
		1206	# we have to keep some variables in memory intact
		1207	local $self->{path};
		1208	local $self->{load_path};
		1209	local $self->{deny_save};
		1210	local $self->{deny_reset};
		1211
		1212	$self->SUPER::thawer_merge ($merge);
		1213	}
		1214
		1215	sub normalise {
		1216	my ($path, $base) = @_;
		1217
		1218	$path = "$path"; # make sure its a string
		1219
		1220	$path =~ s/\.map$//;
		1221
		1222	# map plan:
		1223	#
		1224	# /! non-realised random map exit (special hack!)
		1225	# {... are special paths that are not being touched
		1226	# ?xxx/... are special absolute paths
		1227	# ?random/... random maps
		1228	# /... normal maps
		1229	# ~user/... per-player map of a specific user
		1230
		1231	$path =~ s/$PATH_SEP/\//go;
		1232
		1233	# treat it as relative path if it starts with
		1234	# something that looks reasonable
		1235	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1236	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1237
		1238	$base =~ s{[^/]+/?$}{};
		1239	$path = "$base/$path";
		1240	}
		1241
		1242	for ($path) {
		1243	redo if s{//}{/};
		1244	redo if s{/\.?/}{/};
		1245	redo if s{/[^/]+/\.\./}{/};
		1246	}
		1247
		1248	$path
		1249	}
		1250
		1251	sub new_from_path {
		1252	my (undef, $path, $base) = @_;
		1253
		1254	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1255
		1256	$path = normalise $path, $base;
		1257
		1258	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1259	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1260	my $self = bless cf::map::new, $pkg;
		1261	$self->{path} = $path; $self->path ($path);
		1262	$self->init; # pass $1 etc.
		1263	return $self;
		1264	}
		1265	}
		1266
		1267	Carp::carp "unable to resolve path '$path' (base '$base').";
		1268	()
		1269	}
		1270
		1271	sub init {
		1272	my ($self) = @_;
		1273
		1274	$self
		1275	}
		1276
		1277	sub as_string {
		1278	my ($self) = @_;
		1279
		1280	"$self->{path}"
		1281	}
		1282
		1283	# the displayed name, this is a one way mapping
		1284	sub visible_name {
		1285	&as_string
		1286	}
		1287
		1288	# the original (read-only) location
		1289	sub load_path {
		1290	my ($self) = @_;
		1291
		1292	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1293	}
		1294
		1295	# the temporary/swap location
		1296	sub save_path {
		1297	my ($self) = @_;
		1298
		1299	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1300	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1301	}
		1302
		1303	# the unique path, undef == no special unique path
		1304	sub uniq_path {
		1305	my ($self) = @_;
		1306
		1307	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1308	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1309	}
		1310
		1311	# and all this just because we cannot iterate over
		1312	# all maps in C++...
		1313	sub change_all_map_light {
		1314	my ($change) = @_;
		1315
		1316	$_->change_map_light ($change)
		1317	for grep $_->outdoor, values %cf::MAP;
		1318	}
		1319
		1320	sub unlink_save {
		1321	my ($self) = @_;
		1322
		1323	utf8::encode (my $save = $self->save_path);
		1324	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1325	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1326	}
		1327
		1328	sub load_header_from($) {
		1329	my ($self, $path) = @_;
		1330
		1331	utf8::encode $path;
		1332	#aio_open $path, O_RDONLY, 0
		1333	# or return;
		1334
		1335	$self->_load_header ($path)
		1336	or return;
		1337
		1338	$self->{load_path} = $path;
		1339
		1340	1
		1341	}
		1342
		1343	sub load_header_orig {
		1344	my ($self) = @_;
		1345
		1346	$self->load_header_from ($self->load_path)
		1347	}
		1348
		1349	sub load_header_temp {
		1350	my ($self) = @_;
		1351
		1352	$self->load_header_from ($self->save_path)
		1353	}
		1354
		1355	sub prepare_temp {
		1356	my ($self) = @_;
		1357
		1358	$self->last_access ((delete $self->{last_access})
		1359	|| $cf::RUNTIME); #d#
		1360	# safety
		1361	$self->{instantiate_time} = $cf::RUNTIME
		1362	if $self->{instantiate_time} > $cf::RUNTIME;
		1363	}
		1364
		1365	sub prepare_orig {
		1366	my ($self) = @_;
		1367
		1368	$self->{load_original} = 1;
		1369	$self->{instantiate_time} = $cf::RUNTIME;
		1370	$self->last_access ($cf::RUNTIME);
		1371	$self->instantiate;
		1372	}
		1373
		1374	sub load_header {
		1375	my ($self) = @_;
		1376
		1377	if ($self->load_header_temp) {
		1378	$self->prepare_temp;
		1379	} else {
		1380	$self->load_header_orig
		1381	or return;
		1382	$self->prepare_orig;
		1383	}
		1384
		1385	1
		1386	}
		1387
		1388	sub find;
		1389	sub find {
		1390	my ($path, $origin) = @_;
		1391
		1392	$path = normalise $path, $origin && $origin->path;
		1393
		1394	cf::lock_wait "map_find:$path";
		1395
		1396	$cf::MAP{$path} || do {
		1397	my $guard = cf::lock_acquire "map_find:$path";
		1398	my $map = new_from_path cf::map $path
		1399	or return;
		1400
		1401	$map->{last_save} = $cf::RUNTIME;
		1402
		1403	$map->load_header
		1404	or return;
		1405
		1406	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1407	# doing this can freeze the server in a sync job, obviously
		1408	#$cf::WAIT_FOR_TICK->wait;
		1409	$map->reset;
		1410	undef $guard;
		1411	return find $path;
		1412	}
		1413
		1414	$cf::MAP{$path} = $map
		1415	}
		1416	}
		1417
		1418	sub pre_load { }
		1419	sub post_load { }
		1420
		1421	sub load {
		1422	my ($self) = @_;
		1423
		1424	local $self->{deny_reset} = 1; # loading can take a long time
		1425
		1426	my $path = $self->{path};
		1427	my $guard = cf::lock_acquire "map_load:$path";
		1428
		1429	return if $self->in_memory != cf::MAP_SWAPPED;
		1430
		1431	$self->in_memory (cf::MAP_LOADING);
		1432
		1433	$self->alloc;
		1434
		1435	$self->pre_load;
		1436
		1437	$self->_load_objects ($self->{load_path}, 1)
		1438	or return;
		1439
		1440	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1441	if delete $self->{load_original};
		1442
		1443	if (my $uniq = $self->uniq_path) {
		1444	utf8::encode $uniq;
		1445	if (aio_open $uniq, O_RDONLY, 0) {
		1446	$self->clear_unique_items;
		1447	$self->_load_objects ($uniq, 0);
		1448	}
		1449	}
		1450
		1451	Coro::cede;
		1452
		1453	# now do the right thing for maps
		1454	$self->link_multipart_objects;
		1455
		1456	unless ($self->{deny_activate}) {
		1457	$self->decay_objects;
		1458	$self->fix_auto_apply;
		1459	$self->update_buttons;
		1460	Coro::cede;
		1461	$self->set_darkness_map;
		1462	$self->difficulty ($self->estimate_difficulty)
		1463	unless $self->difficulty;
		1464	Coro::cede;
		1465	$self->activate;
		1466	}
		1467
		1468	$self->post_load;
		1469
		1470	$self->in_memory (cf::MAP_IN_MEMORY);
		1471	}
		1472
		1473	sub customise_for {
		1474	my ($self, $ob) = @_;
		1475
		1476	return find "~" . $ob->name . "/" . $self->{path}
		1477	if $self->per_player;
		1478
		1479	$self
		1480	}
		1481
		1482	# find and load all maps in the 3x3 area around a map
		1483	sub load_diag {
601	my ($msg) = @_;	1484	my ($map) = @_;
602		1485
603	$msg->("reloading...");	1486	my @diag; # diagonal neighbours
604		1487
605	eval {	1488	for (0 .. 3) {
606	# 1. cancel all watchers	1489	my $neigh = $map->tile_path ($_)
607	$_->cancel for Event::all_watchers;	1490	or next;
		1491	$neigh = find $neigh, $map
		1492	or next;
		1493	$neigh->load;
608		1494
609	# 2. unload all extensions	1495	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
610	for (@exts) {	1496	[$neigh->tile_path (($_ + 1) % 4), $neigh];
611	$msg->("unloading <$_>");	1497	}
612	unload_extension $_;
613	}
614		1498
615	# 3. unload all modules loaded from $LIBDIR	1499	for (@diag) {
616	while (my ($k, $v) = each %INC) {	1500	my $neigh = find @$_
617	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1501	or next;
		1502	$neigh->load;
		1503	}
		1504	}
618		1505
619	$msg->("removing <$k>");	1506	sub find_sync {
620	delete $INC{$k};	1507	my ($path, $origin) = @_;
621		1508
622	$k =~ s/\.pm$//;	1509	cf::sync_job { find $path, $origin }
623	$k =~ s/\//::/g;	1510	}
624		1511
625	if (my $cb = $k->can ("unload_module")) {	1512	sub do_load_sync {
626	$cb->();	1513	my ($map) = @_;
		1514
		1515	cf::sync_job { $map->load };
		1516	}
		1517
		1518	our %MAP_PREFETCH;
		1519	our $MAP_PREFETCHER = undef;
		1520
		1521	sub find_async {
		1522	my ($path, $origin) = @_;
		1523
		1524	$path = normalise $path, $origin && $origin->{path};
		1525
		1526	if (my $map = $cf::MAP{$path}) {
		1527	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1528	}
		1529
		1530	undef $MAP_PREFETCH{$path};
		1531	$MAP_PREFETCHER ||= cf::async {
		1532	while (%MAP_PREFETCH) {
		1533	for my $path (keys %MAP_PREFETCH) {
		1534	my $map = find $path
		1535	or next;
		1536	$map->load;
		1537
		1538	delete $MAP_PREFETCH{$path};
627	}	1539	}
628
629	Symbol::delete_package $k;
630	}
631
632	# 4. get rid of safe::, as good as possible
633	Symbol::delete_package "safe::$_"
634	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
635
636	# 5. remove register_script_function callbacks
637	# TODO
638		1540	}
639	# 6. unload cf.pm "a bit"	1541	undef $MAP_PREFETCHER;
640	delete $INC{"cf.pm"};
641
642	# don't, removes xs symbols, too,
643	# and global variables created in xs
644	#Symbol::delete_package __PACKAGE__;
645
646	# 7. reload cf.pm
647	$msg->("reloading cf.pm");
648	require cf;
649	};	1542	};
650	$msg->($@) if $@;	1543	$MAP_PREFETCHER->prio (6);
651		1544
652	$msg->("reloaded");	1545	()
653	};	1546	}
654		1547
655	sub perl_reload() {	1548	sub save {
656	_perl_reload {	1549	my ($self) = @_;
657	warn $_[0];	1550
658	print "$_[0]\n";	1551	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1552
		1553	$self->{last_save} = $cf::RUNTIME;
		1554
		1555	return unless $self->dirty;
		1556
		1557	my $save = $self->save_path; utf8::encode $save;
		1558	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1559
		1560	$self->{load_path} = $save;
		1561
		1562	return if $self->{deny_save};
		1563
		1564	local $self->{last_access} = $self->last_access;#d#
		1565
		1566	cf::async {
		1567	$_->contr->save for $self->players;
659	};	1568	};
660	}
661		1569
662	register_command "perl-reload", 0, sub {	1570	if ($uniq) {
663	my ($who, $arg) = @_;	1571	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
664		1572	$self->_save_objects ($uniq, cf::IO_UNIQUES);
665	if ($who->flag (FLAG_WIZ)) {
666	_perl_reload {
667	warn $_[0];
668	$who->message ($_[0]);
669	};
670	}
671	};
672
673	#############################################################################
674	# extcmd framework, basically convert ext <msg>
675	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
676
677	attach_to_players
678	on_extcmd => sub {
679	my ($pl, $buf) = @_;
680
681	my $msg = eval { from_json $buf };
682
683	if (ref $msg) {
684	if (my $cb = $extcmd{$msg->{msgtype}}) {
685	if (my %reply = $cb->[0]->($pl, $msg)) {
686	$pl->ext_reply ($msg->{msgid}, %reply);
687	}
688	}
689	} else {	1573	} else {
690	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1574	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
691	}
692
693	cf::override;
694	},	1575	}
695	;	1576	}
696		1577
697	#############################################################################	1578	sub swap_out {
698	# load/save/clean perl data associated with a map
699
700	*cf::mapsupport::on_clean = sub {
701	my ($map) = @_;	1579	my ($self) = @_;
702		1580
703	my $path = $map->tmpname;	1581	# save first because save cedes
704	defined $path or return;	1582	$self->save;
705		1583
706	unlink "$path.pst";	1584	my $lock = cf::lock_acquire "map_data:" . $self->path;
707	};
708		1585
709	# old style persistent data, TODO: remove #d#	1586	return if $self->players;
710	*cf::mapsupport::on_swapin =	1587	return if $self->in_memory != cf::MAP_IN_MEMORY;
711	*cf::mapsupport::on_load = sub {	1588	return if $self->{deny_save};
		1589
		1590	$self->clear;
		1591	$self->in_memory (cf::MAP_SWAPPED);
		1592	}
		1593
		1594	sub reset_at {
712	my ($map) = @_;	1595	my ($self) = @_;
713		1596
714	my $path = $map->tmpname;	1597	# TODO: safety, remove and allow resettable per-player maps
715	$path = $map->path unless defined $path;	1598	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1599	return 1e99 if $self->{deny_reset};
716		1600
717	open my $fh, "<:raw", "$path.cfperl"	1601	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
718	or return; # no perl data	1602	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
719		1603
720	my $data = Storable::thaw do { local $/; <$fh> };	1604	$time + $to
721
722	$data->{version} <= 1
723	or return; # too new
724
725	$map->_set_obs ($data->{obs});
726	$map->invoke (EVENT_MAP_UPGRADE);
727	};
728
729	attach_to_maps prio => -10000, package => cf::mapsupport::;
730
731	#############################################################################
732	# load/save perl data associated with player->ob objects
733
734	sub all_objects(@) {
735	@_, map all_objects ($_->inv), @_
736	}	1605	}
737		1606
738	attach_to_players	1607	sub should_reset {
739	on_load => sub {	1608	my ($self) = @_;
740	my ($pl, $path) = @_;
741		1609
742	for my $o (all_objects $pl->ob) {	1610	$self->reset_at <= $cf::RUNTIME
743	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1611	}
744	$o->set_ob_key_value ("_perl_data");
745		1612
746	%$o = %{ Storable::thaw pack "H*", $value };	1613	sub reset {
747	}	1614	my ($self) = @_;
748	}	1615
		1616	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1617
		1618	return if $self->players;
		1619	return if $self->isa ("ext::map_per_player");#d#
		1620
		1621	warn "resetting map ", $self->path;#d#
		1622
		1623	$self->in_memory (cf::MAP_SWAPPED);
		1624
		1625	# need to save uniques path
		1626	unless ($self->{deny_save}) {
		1627	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1628
		1629	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1630	if $uniq;
749	},	1631	}
750	;
751		1632
752	#############################################################################	1633	delete $cf::MAP{$self->path};
753	# core extensions - in perl
754		1634
755	=item cf::player::exists $login	1635	$self->clear;
756		1636
757	Returns true when the given account exists.	1637	$_->clear_links_to ($self) for values %cf::MAP;
758		1638
759	=cut	1639	$self->unlink_save;
760		1640	$self->destroy;
761	sub cf::player::exists($) {
762	cf::player::find $_[0]
763	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
764	}	1641	}
765		1642
		1643	my $nuke_counter = "aaaa";
		1644
		1645	sub nuke {
		1646	my ($self) = @_;
		1647
		1648	delete $cf::MAP{$self->path};
		1649
		1650	$self->unlink_save;
		1651
		1652	bless $self, "cf::map";
		1653	delete $self->{deny_reset};
		1654	$self->{deny_save} = 1;
		1655	$self->reset_timeout (1);
		1656	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1657
		1658	$cf::MAP{$self->path} = $self;
		1659
		1660	$self->reset; # polite request, might not happen
		1661	}
		1662
		1663	=item cf::map::unique_maps
		1664
		1665	Returns an arrayref of paths of all shared maps that have
		1666	instantiated unique items. May block.
		1667
		1668	=cut
		1669
		1670	sub unique_maps() {
		1671	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1672	or return;
		1673
		1674	my @paths;
		1675
		1676	for (@$files) {
		1677	utf8::decode $_;
		1678	next if /\.pst$/;
		1679	next unless /^$PATH_SEP/o;
		1680
		1681	push @paths, cf::map::normalise $_;
		1682	}
		1683
		1684	\@paths
		1685	}
		1686
		1687	package cf;
		1688
		1689	=back
		1690
		1691	=head3 cf::object
		1692
		1693	=cut
		1694
		1695	package cf::object;
		1696
		1697	=over 4
		1698
		1699	=item $ob->inv_recursive
		1700
		1701	Returns the inventory of the object _and_ their inventories, recursively.
		1702
		1703	=cut
		1704
		1705	sub inv_recursive_;
		1706	sub inv_recursive_ {
		1707	map { $_, inv_recursive_ $_->inv } @_
		1708	}
		1709
		1710	sub inv_recursive {
		1711	inv_recursive_ inv $_[0]
		1712	}
		1713
		1714	package cf;
		1715
		1716	=back
		1717
		1718	=head3 cf::object::player
		1719
		1720	=over 4
		1721
766	=item $player->reply ($npc, $msg[, $flags])	1722	=item $player_object->reply ($npc, $msg[, $flags])
767		1723
768	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1724	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
769	can be C<undef>. Does the right thing when the player is currently in a	1725	can be C<undef>. Does the right thing when the player is currently in a
770	dialogue with the given NPC character.	1726	dialogue with the given NPC character.
771		1727
772	=cut	1728	=cut
773		1729
774	# rough implementation of a future "reply" method that works	1730	# rough implementation of a future "reply" method that works
775	# with dialog boxes.	1731	# with dialog boxes.
		1732	#TODO: the first argument must go, split into a $npc->reply_to ( method
776	sub cf::object::player::reply($$$;$) {	1733	sub cf::object::player::reply($$$;$) {
777	my ($self, $npc, $msg, $flags) = @_;	1734	my ($self, $npc, $msg, $flags) = @_;
778		1735
779	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1736	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
780		1737
…		…
784	$msg = $npc->name . " says: $msg" if $npc;	1741	$msg = $npc->name . " says: $msg" if $npc;
785	$self->message ($msg, $flags);	1742	$self->message ($msg, $flags);
786	}	1743	}
787	}	1744	}
788		1745
789	=item $player->ext_reply ($msgid, $msgtype, %msg)	1746	=item $player_object->may ("access")
790		1747
791	Sends an ext reply to the player.	1748	Returns wether the given player is authorized to access resource "access"
		1749	(e.g. "command_wizcast").
792		1750
793	=cut	1751	=cut
794		1752
795	sub cf::player::ext_reply($$$%) {	1753	sub cf::object::player::may {
		1754	my ($self, $access) = @_;
		1755
		1756	$self->flag (cf::FLAG_WIZ) ||
		1757	(ref $cf::CFG{"may_$access"}
		1758	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
		1759	: $cf::CFG{"may_$access"})
		1760	}
		1761
		1762	=item $player_object->enter_link
		1763
		1764	Freezes the player and moves him/her to a special map (C<{link}>).
		1765
		1766	The player should be reasonably safe there for short amounts of time. You
		1767	I<MUST> call C<leave_link> as soon as possible, though.
		1768
		1769	Will never block.
		1770
		1771	=item $player_object->leave_link ($map, $x, $y)
		1772
		1773	Moves the player out of the special C<{link}> map onto the specified
		1774	map. If the map is not valid (or omitted), the player will be moved back
		1775	to the location he/she was before the call to C<enter_link>, or, if that
		1776	fails, to the emergency map position.
		1777
		1778	Might block.
		1779
		1780	=cut
		1781
		1782	sub link_map {
		1783	unless ($LINK_MAP) {
		1784	$LINK_MAP = cf::map::find "{link}"
		1785	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1786	$LINK_MAP->load;
		1787	}
		1788
		1789	$LINK_MAP
		1790	}
		1791
		1792	sub cf::object::player::enter_link {
		1793	my ($self) = @_;
		1794
		1795	$self->deactivate_recursive;
		1796
		1797	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1798
		1799	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1800	if $self->map;
		1801
		1802	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1803	}
		1804
		1805	sub cf::object::player::leave_link {
		1806	my ($self, $map, $x, $y) = @_;
		1807
		1808	my $link_pos = delete $self->{_link_pos};
		1809
		1810	unless ($map) {
		1811	# restore original map position
		1812	($map, $x, $y) = @{ $link_pos || [] };
		1813	$map = cf::map::find $map;
		1814
		1815	unless ($map) {
		1816	($map, $x, $y) = @$EMERGENCY_POSITION;
		1817	$map = cf::map::find $map
		1818	or die "FATAL: cannot load emergency map\n";
		1819	}
		1820	}
		1821
		1822	($x, $y) = (-1, -1)
		1823	unless (defined $x) && (defined $y);
		1824
		1825	# use -1 or undef as default coordinates, not 0, 0
		1826	($x, $y) = ($map->enter_x, $map->enter_y)
		1827	if $x <=0 && $y <= 0;
		1828
		1829	$map->load;
		1830	$map->load_diag;
		1831
		1832	return unless $self->contr->active;
		1833	$self->activate_recursive;
		1834
		1835	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		1836	$self->enter_map ($map, $x, $y);
		1837	}
		1838
		1839	cf::player->attach (
		1840	on_logout => sub {
		1841	my ($pl) = @_;
		1842
		1843	# abort map switching before logout
		1844	if ($pl->ob->{_link_pos}) {
		1845	cf::sync_job {
		1846	$pl->ob->leave_link
		1847	};
		1848	}
		1849	},
		1850	on_login => sub {
		1851	my ($pl) = @_;
		1852
		1853	# try to abort aborted map switching on player login :)
		1854	# should happen only on crashes
		1855	if ($pl->ob->{_link_pos}) {
		1856	$pl->ob->enter_link;
		1857	(async {
		1858	$pl->ob->reply (undef,
		1859	"There was an internal problem at your last logout, "
		1860	. "the server will try to bring you to your intended destination in a second.",
		1861	cf::NDI_RED);
		1862	# we need this sleep as the login has a concurrent enter_exit running
		1863	# and this sleep increases chances of the player not ending up in scorn
		1864	Coro::Timer::sleep 1;
		1865	$pl->ob->leave_link;
		1866	})->prio (2);
		1867	}
		1868	},
		1869	);
		1870
		1871	=item $player_object->goto ($path, $x, $y)
		1872
		1873	=cut
		1874
		1875	sub cf::object::player::goto {
		1876	my ($self, $path, $x, $y) = @_;
		1877
		1878	$self->enter_link;
		1879
		1880	(async {
		1881	my $map = eval {
		1882	my $map = cf::map::find $path;
		1883	$map = $map->customise_for ($self) if $map;
		1884	$map
		1885	} or
		1886	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1887
		1888	$self->leave_link ($map, $x, $y);
		1889	})->prio (1);
		1890	}
		1891
		1892	=item $player_object->enter_exit ($exit_object)
		1893
		1894	=cut
		1895
		1896	sub parse_random_map_params {
		1897	my ($spec) = @_;
		1898
		1899	my $rmp = { # defaults
		1900	xsize => (cf::rndm 15, 40),
		1901	ysize => (cf::rndm 15, 40),
		1902	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1903	#layout => string,
		1904	};
		1905
		1906	for (split /\n/, $spec) {
		1907	my ($k, $v) = split /\s+/, $_, 2;
		1908
		1909	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1910	}
		1911
		1912	$rmp
		1913	}
		1914
		1915	sub prepare_random_map {
		1916	my ($exit) = @_;
		1917
		1918	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1919
		1920	# all this does is basically replace the /! path by
		1921	# a new random map path (?random/...) with a seed
		1922	# that depends on the exit object
		1923
		1924	my $rmp = parse_random_map_params $exit->msg;
		1925
		1926	if ($exit->map) {
		1927	$rmp->{region} = $exit->region->name;
		1928	$rmp->{origin_map} = $exit->map->path;
		1929	$rmp->{origin_x} = $exit->x;
		1930	$rmp->{origin_y} = $exit->y;
		1931	}
		1932
		1933	$rmp->{random_seed} ||= $exit->random_seed;
		1934
		1935	my $data = cf::to_json $rmp;
		1936	my $md5 = Digest::MD5::md5_hex $data;
		1937	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1938
		1939	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1940	aio_write $fh, 0, (length $data), $data, 0;
		1941	undef $fh;
		1942	aio_rename "$meta~", $meta;
		1943
		1944	$exit->slaying ("?random/$md5");
		1945	$exit->msg (undef);
		1946	}
		1947	}
		1948
		1949	sub cf::object::player::enter_exit {
796	my ($self, $id, %msg) = @_;	1950	my ($self, $exit) = @_;
797		1951
798	$msg{msgid} = $id;	1952	return unless $self->type == cf::PLAYER;
799		1953
800	$self->send ("ext " . to_json \%msg);	1954	if ($exit->slaying eq "/!") {
801	}	1955	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1956	cf::sync_job { prepare_random_map $exit };
		1957	}
802		1958
803	#############################################################################	1959	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
804	# map scripting support	1960	my $hp = $exit->stats->hp;
		1961	my $sp = $exit->stats->sp;
		1962
		1963	$self->enter_link;
		1964
		1965	(async {
		1966	$self->deactivate_recursive; # just to be sure
		1967	unless (eval {
		1968	$self->goto ($slaying, $hp, $sp);
		1969
		1970	1;
		1971	}) {
		1972	$self->message ("Something went wrong deep within the crossfire server. "
		1973	. "I'll try to bring you back to the map you were before. "
		1974	. "Please report this to the dungeon master!",
		1975	cf::NDI_UNIQUE | cf::NDI_RED);
		1976
		1977	warn "ERROR in enter_exit: $@";
		1978	$self->leave_link;
		1979	}
		1980	})->prio (1);
		1981	}
		1982
		1983	=head3 cf::client
		1984
		1985	=over 4
		1986
		1987	=item $client->send_drawinfo ($text, $flags)
		1988
		1989	Sends a drawinfo packet to the client. Circumvents output buffering so
		1990	should not be used under normal circumstances.
		1991
		1992	=cut
		1993
		1994	sub cf::client::send_drawinfo {
		1995	my ($self, $text, $flags) = @_;
		1996
		1997	utf8::encode $text;
		1998	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1999	}
		2000
		2001
		2002	=item $success = $client->query ($flags, "text", \&cb)
		2003
		2004	Queues a query to the client, calling the given callback with
		2005	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		2006	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		2007
		2008	Queries can fail, so check the return code. Or don't, as queries will become
		2009	reliable at some point in the future.
		2010
		2011	=cut
		2012
		2013	sub cf::client::query {
		2014	my ($self, $flags, $text, $cb) = @_;
		2015
		2016	return unless $self->state == ST_PLAYING
		2017	|| $self->state == ST_SETUP
		2018	|| $self->state == ST_CUSTOM;
		2019
		2020	$self->state (ST_CUSTOM);
		2021
		2022	utf8::encode $text;
		2023	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		2024
		2025	$self->send_packet ($self->{query_queue}[0][0])
		2026	if @{ $self->{query_queue} } == 1;
		2027	}
		2028
		2029	cf::client->attach (
		2030	on_reply => sub {
		2031	my ($ns, $msg) = @_;
		2032
		2033	# this weird shuffling is so that direct followup queries
		2034	# get handled first
		2035	my $queue = delete $ns->{query_queue}
		2036	or return; # be conservative, not sure how that can happen, but we saw a crash here
		2037
		2038	(shift @$queue)->[1]->($msg);
		2039	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
		2040
		2041	push @{ $ns->{query_queue} }, @$queue;
		2042
		2043	if (@{ $ns->{query_queue} } == @$queue) {
		2044	if (@$queue) {
		2045	$ns->send_packet ($ns->{query_queue}[0][0]);
		2046	} else {
		2047	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		2048	}
		2049	}
		2050	},
		2051	);
		2052
		2053	=item $client->async (\&cb)
		2054
		2055	Create a new coroutine, running the specified callback. The coroutine will
		2056	be automatically cancelled when the client gets destroyed (e.g. on logout,
		2057	or loss of connection).
		2058
		2059	=cut
		2060
		2061	sub cf::client::async {
		2062	my ($self, $cb) = @_;
		2063
		2064	my $coro = &Coro::async ($cb);
		2065
		2066	$coro->on_destroy (sub {
		2067	delete $self->{_coro}{$coro+0};
		2068	});
		2069
		2070	$self->{_coro}{$coro+0} = $coro;
		2071
		2072	$coro
		2073	}
		2074
		2075	cf::client->attach (
		2076	on_destroy => sub {
		2077	my ($ns) = @_;
		2078
		2079	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		2080	},
		2081	);
		2082
		2083	=back
		2084
		2085
		2086	=head2 SAFE SCRIPTING
		2087
		2088	Functions that provide a safe environment to compile and execute
		2089	snippets of perl code without them endangering the safety of the server
		2090	itself. Looping constructs, I/O operators and other built-in functionality
		2091	is not available in the safe scripting environment, and the number of
		2092	functions and methods that can be called is greatly reduced.
		2093
		2094	=cut
805		2095
806	our $safe = new Safe "safe";	2096	our $safe = new Safe "safe";
807	our $safe_hole = new Safe::Hole;	2097	our $safe_hole = new Safe::Hole;
808		2098
809	$SIG{FPE} = 'IGNORE';	2099	$SIG{FPE} = 'IGNORE';
810		2100
811	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2101	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
812		2102
813	# here we export the classes and methods available to script code	2103	# here we export the classes and methods available to script code
814		2104
		2105	=pod
		2106
		2107	The following fucntions and emthods are available within a safe environment:
		2108
		2109	cf::object contr pay_amount pay_player map
		2110	cf::object::player player
		2111	cf::player peaceful
		2112	cf::map trigger
		2113
		2114	=cut
		2115
815	for (	2116	for (
816	["cf::object" => qw(contr pay_amount pay_player)],	2117	["cf::object" => qw(contr pay_amount pay_player map)],
817	["cf::object::player" => qw(player)],	2118	["cf::object::player" => qw(player)],
818	["cf::player" => qw(peaceful)],	2119	["cf::player" => qw(peaceful)],
		2120	["cf::map" => qw(trigger)],
819	) {	2121	) {
820	no strict 'refs';	2122	no strict 'refs';
821	my ($pkg, @funs) = @$_;	2123	my ($pkg, @funs) = @$_;
822	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	2124	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
823	for @funs;	2125	for @funs;
824	}	2126	}
		2127
		2128	=over 4
		2129
		2130	=item @retval = safe_eval $code, [var => value, ...]
		2131
		2132	Compiled and executes the given perl code snippet. additional var/value
		2133	pairs result in temporary local (my) scalar variables of the given name
		2134	that are available in the code snippet. Example:
		2135
		2136	my $five = safe_eval '$first + $second', first => 1, second => 4;
		2137
		2138	=cut
825		2139
826	sub safe_eval($;@) {	2140	sub safe_eval($;@) {
827	my ($code, %vars) = @_;	2141	my ($code, %vars) = @_;
828		2142
829	my $qcode = $code;	2143	my $qcode = $code;
…		…
852	}	2166	}
853		2167
854	wantarray ? @res : $res[0]	2168	wantarray ? @res : $res[0]
855	}	2169	}
856		2170
		2171	=item cf::register_script_function $function => $cb
		2172
		2173	Register a function that can be called from within map/npc scripts. The
		2174	function should be reasonably secure and should be put into a package name
		2175	like the extension.
		2176
		2177	Example: register a function that gets called whenever a map script calls
		2178	C<rent::overview>, as used by the C<rent> extension.
		2179
		2180	cf::register_script_function "rent::overview" => sub {
		2181	...
		2182	};
		2183
		2184	=cut
		2185
857	sub register_script_function {	2186	sub register_script_function {
858	my ($fun, $cb) = @_;	2187	my ($fun, $cb) = @_;
859		2188
860	no strict 'refs';	2189	no strict 'refs';
861	*{"safe::$fun"} = $safe_hole->wrap ($cb);	2190	*{"safe::$fun"} = $safe_hole->wrap ($cb);
862	}	2191	}
863		2192
		2193	=back
		2194
		2195	=cut
		2196
864	#############################################################################	2197	#############################################################################
865	# the server's main()	2198
		2199	=head2 EXTENSION DATABASE SUPPORT
		2200
		2201	Crossfire maintains a very simple database for extension use. It can
		2202	currently store anything that can be serialised using Storable, which
		2203	excludes objects.
		2204
		2205	The parameter C<$family> should best start with the name of the extension
		2206	using it, it should be unique.
		2207
		2208	=over 4
		2209
		2210	=item $value = cf::db_get $family => $key
		2211
		2212	Returns a single value from the database.
		2213
		2214	=item cf::db_put $family => $key => $value
		2215
		2216	Stores the given C<$value> in the family.
		2217
		2218	=cut
		2219
		2220	our $DB;
		2221
		2222	sub db_init {
		2223	unless ($DB) {
		2224	$DB = BDB::db_create $DB_ENV;
		2225
		2226	cf::sync_job {
		2227	eval {
		2228	$DB->set_flags (BDB::CHKSUM);
		2229
		2230	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2231	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2232	cf::cleanup "db_open(db): $!" if $!;
		2233	};
		2234	cf::cleanup "db_open(db): $@" if $@;
		2235	};
		2236
		2237	my $path = cf::localdir . "/database.pst";
		2238	if (stat $path) {
		2239	cf::sync_job {
		2240	my $pst = Storable::retrieve $path;
		2241
		2242	cf::db_put (board => data => $pst->{board});
		2243	cf::db_put (guildrules => data => $pst->{guildrules});
		2244	cf::db_put (rent => balance => $pst->{rent}{balance});
		2245	BDB::db_env_txn_checkpoint $DB_ENV;
		2246
		2247	unlink $path;
		2248	};
		2249	}
		2250	}
		2251	}
		2252
		2253	sub db_get($$) {
		2254	my $key = "$_[0]/$_[1]";
		2255
		2256	cf::sync_job {
		2257	BDB::db_get $DB, undef, $key, my $data;
		2258
		2259	$! ? ()
		2260	: Compress::LZF::sthaw $data
		2261	}
		2262	}
		2263
		2264	sub db_put($$$) {
		2265	BDB::dbreq_pri 4;
		2266	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
		2267	}
		2268
		2269	#############################################################################
		2270	# the server's init and main functions
		2271
		2272	sub load_faces {
		2273	my $path = sprintf "%s/faces", cf::datadir;
		2274
		2275	warn "loading faces from $path\n";
		2276
		2277	my $faces;
		2278	0 < aio_load $path, $faces
		2279	or die "$path: $!";
		2280
		2281	Coro::cede;
		2282	$faces = Storable::thaw $faces;
		2283	Coro::cede;
		2284
		2285	while (my ($face, $info) = each %$faces) {
		2286	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2287	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2288	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2289	Coro::cede;
		2290	}
		2291
		2292	1
		2293	}
		2294
		2295	sub reload_resources {
		2296	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2297	or die "unable to load regions file\n";#d#
		2298	load_faces
		2299	or die "unable to load faces\n";#d#
		2300	}
		2301
		2302	sub init {
		2303	reload_resources;
		2304	}
		2305
		2306	sub cfg_load {
		2307	open my $fh, "<:utf8", cf::confdir . "/config"
		2308	or return;
		2309
		2310	local $/;
		2311	*CFG = YAML::Syck::Load <$fh>;
		2312
		2313	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2314
		2315	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2316	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2317
		2318	if (exists $CFG{mlockall}) {
		2319	eval {
		2320	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2321	and die "WARNING: m(un)lockall failed: $!\n";
		2322	};
		2323	warn $@ if $@;
		2324	}
		2325	}
866		2326
867	sub main {	2327	sub main {
		2328	# we must not ever block the main coroutine
		2329	local $Coro::idle = sub {
		2330	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2331	(async {
		2332	Event::one_event;
		2333	})->prio (Coro::PRIO_MAX);
		2334	};
		2335
		2336	cfg_load;
		2337	db_init;
		2338	load_extensions;
		2339
		2340	$TICK_WATCHER->start;
868	Event::loop;	2341	Event::loop;
869	}	2342	}
870		2343
871	#############################################################################	2344	#############################################################################
872	# initialisation	2345	# initialisation and cleanup
873		2346
874	register "<global>", __PACKAGE__;	2347	# install some emergency cleanup handlers
		2348	BEGIN {
		2349	for my $signal (qw(INT HUP TERM)) {
		2350	Event->signal (
		2351	reentrant => 0,
		2352	data => WF_AUTOCANCEL,
		2353	signal => $signal,
		2354	prio => 0,
		2355	cb => sub {
		2356	cf::cleanup "SIG$signal";
		2357	},
		2358	);
		2359	}
		2360	}
		2361
		2362	sub emergency_save() {
		2363	my $freeze_guard = cf::freeze_mainloop;
		2364
		2365	warn "enter emergency perl save\n";
		2366
		2367	cf::sync_job {
		2368	# use a peculiar iteration method to avoid tripping on perl
		2369	# refcount bugs in for. also avoids problems with players
		2370	# and maps saved/destroyed asynchronously.
		2371	warn "begin emergency player save\n";
		2372	for my $login (keys %cf::PLAYER) {
		2373	my $pl = $cf::PLAYER{$login} or next;
		2374	$pl->valid or next;
		2375	$pl->save;
		2376	}
		2377	warn "end emergency player save\n";
		2378
		2379	warn "begin emergency map save\n";
		2380	for my $path (keys %cf::MAP) {
		2381	my $map = $cf::MAP{$path} or next;
		2382	$map->valid or next;
		2383	$map->save;
		2384	}
		2385	warn "end emergency map save\n";
		2386
		2387	warn "begin emergency database checkpoint\n";
		2388	BDB::db_env_txn_checkpoint $DB_ENV;
		2389	warn "end emergency database checkpoint\n";
		2390	};
		2391
		2392	warn "leave emergency perl save\n";
		2393	}
		2394
		2395	sub post_cleanup {
		2396	my ($make_core) = @_;
		2397
		2398	warn Carp::longmess "post_cleanup backtrace"
		2399	if $make_core;
		2400	}
		2401
		2402	sub reload() {
		2403	# can/must only be called in main
		2404	if ($Coro::current != $Coro::main) {
		2405	warn "can only reload from main coroutine";
		2406	return;
		2407	}
		2408
		2409	warn "reloading...";
		2410
		2411	warn "entering sync_job";
		2412
		2413	cf::sync_job {
		2414	cf::write_runtime; # external watchdog should not bark
		2415	cf::emergency_save;
		2416	cf::write_runtime; # external watchdog should not bark
		2417
		2418	warn "syncing database to disk";
		2419	BDB::db_env_txn_checkpoint $DB_ENV;
		2420
		2421	# if anything goes wrong in here, we should simply crash as we already saved
		2422
		2423	warn "cancelling all WF_AUTOCANCEL watchers";
		2424	for (Event::all_watchers) {
		2425	$_->cancel if $_->data & WF_AUTOCANCEL;
		2426	}
		2427
		2428	warn "flushing outstanding aio requests";
		2429	for (;;) {
		2430	BDB::flush;
		2431	IO::AIO::flush;
		2432	Coro::cede;
		2433	last unless IO::AIO::nreqs || BDB::nreqs;
		2434	warn "iterate...";
		2435	}
		2436
		2437	++$RELOAD;
		2438
		2439	warn "cancelling all extension coros";
		2440	$_->cancel for values %EXT_CORO;
		2441	%EXT_CORO = ();
		2442
		2443	warn "removing commands";
		2444	%COMMAND = ();
		2445
		2446	warn "removing ext commands";
		2447	%EXTCMD = ();
		2448
		2449	warn "unloading/nuking all extensions";
		2450	for my $pkg (@EXTS) {
		2451	warn "... unloading $pkg";
		2452
		2453	if (my $cb = $pkg->can ("unload")) {
		2454	eval {
		2455	$cb->($pkg);
		2456	1
		2457	} or warn "$pkg unloaded, but with errors: $@";
		2458	}
		2459
		2460	warn "... nuking $pkg";
		2461	Symbol::delete_package $pkg;
		2462	}
		2463
		2464	warn "unloading all perl modules loaded from $LIBDIR";
		2465	while (my ($k, $v) = each %INC) {
		2466	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		2467
		2468	warn "... unloading $k";
		2469	delete $INC{$k};
		2470
		2471	$k =~ s/\.pm$//;
		2472	$k =~ s/\//::/g;
		2473
		2474	if (my $cb = $k->can ("unload_module")) {
		2475	$cb->();
		2476	}
		2477
		2478	Symbol::delete_package $k;
		2479	}
		2480
		2481	warn "getting rid of safe::, as good as possible";
		2482	Symbol::delete_package "safe::$_"
		2483	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
		2484
		2485	warn "unloading cf.pm \"a bit\"";
		2486	delete $INC{"cf.pm"};
		2487
		2488	# don't, removes xs symbols, too,
		2489	# and global variables created in xs
		2490	#Symbol::delete_package __PACKAGE__;
		2491
		2492	warn "unload completed, starting to reload now";
		2493
		2494	warn "reloading cf.pm";
		2495	require cf;
		2496	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
		2497
		2498	warn "loading config and database again";
		2499	cf::cfg_load;
		2500
		2501	warn "loading extensions";
		2502	cf::load_extensions;
		2503
		2504	warn "reattaching attachments to objects/players";
		2505	_global_reattach; # objects, sockets
		2506	warn "reattaching attachments to maps";
		2507	reattach $_ for values %MAP;
		2508	warn "reattaching attachments to players";
		2509	reattach $_ for values %PLAYER;
		2510
		2511	warn "loading reloadable resources";
		2512	reload_resources;
		2513
		2514	warn "leaving sync_job";
		2515
		2516	1
		2517	} or do {
		2518	warn $@;
		2519	warn "error while reloading, exiting.";
		2520	exit 1;
		2521	};
		2522
		2523	warn "reloaded";
		2524	};
		2525
		2526	our $RELOAD_WATCHER; # used only during reload
		2527
		2528	register_command "reload" => sub {
		2529	my ($who, $arg) = @_;
		2530
		2531	if ($who->flag (FLAG_WIZ)) {
		2532	$who->message ("reloading server.");
		2533
		2534	# doing reload synchronously and two reloads happen back-to-back,
		2535	# coro crashes during coro_state_free->destroy here.
		2536
		2537	$RELOAD_WATCHER ||= Event->timer (
		2538	reentrant => 0,
		2539	after => 0,
		2540	data => WF_AUTOCANCEL,
		2541	cb => sub {
		2542	reload;
		2543	undef $RELOAD_WATCHER;
		2544	},
		2545	);
		2546	}
		2547	};
875		2548
876	unshift @INC, $LIBDIR;	2549	unshift @INC, $LIBDIR;
877		2550
878	load_extensions;	2551	my $bug_warning = 0;
879		2552
880	$TICK_WATCHER = Event->timer (	2553	$TICK_WATCHER = Event->timer (
		2554	reentrant => 0,
		2555	parked => 1,
881	prio => 1,	2556	prio => 0,
882	at => $NEXT_TICK || 1,	2557	at => $NEXT_TICK || $TICK,
		2558	data => WF_AUTOCANCEL,
883	cb => sub {	2559	cb => sub {
		2560	if ($Coro::current != $Coro::main) {
		2561	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2562	unless ++$bug_warning > 10;
		2563	return;
		2564	}
		2565
		2566	$NOW = Event::time;
		2567
884	cf::server_tick; # one server iteration	2568	cf::server_tick; # one server iteration
885		2569	$RUNTIME += $TICK;
886	my $NOW = Event::time;
887	$NEXT_TICK += $TICK;	2570	$NEXT_TICK += $TICK;
888		2571
		2572	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2573	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2574	Coro::async_pool {
		2575	write_runtime
		2576	or warn "ERROR: unable to write runtime file: $!";
		2577	};
		2578	}
		2579
		2580	$WAIT_FOR_TICK->broadcast;
		2581	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2582
		2583	# my $AFTER = Event::time;
		2584	# warn $AFTER - $NOW;#d#
		2585
889	# if we are delayed by four ticks, skip them all	2586	# if we are delayed by four ticks or more, skip them all
890	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2587	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
891		2588
892	$TICK_WATCHER->at ($NEXT_TICK);	2589	$TICK_WATCHER->at ($NEXT_TICK);
893	$TICK_WATCHER->start;	2590	$TICK_WATCHER->start;
894	},	2591	},
895	);	2592	);
896		2593
897	_reload_2;	2594	{
		2595	BDB::max_poll_time $TICK * 0.1;
		2596	$BDB_POLL_WATCHER = Event->io (
		2597	reentrant => 0,
		2598	fd => BDB::poll_fileno,
		2599	poll => 'r',
		2600	prio => 0,
		2601	data => WF_AUTOCANCEL,
		2602	cb => \&BDB::poll_cb,
		2603	);
		2604	BDB::min_parallel 8;
		2605
		2606	BDB::set_sync_prepare {
		2607	my $status;
		2608	my $current = $Coro::current;
		2609	(
		2610	sub {
		2611	$status = $!;
		2612	$current->ready; undef $current;
		2613	},
		2614	sub {
		2615	Coro::schedule while defined $current;
		2616	$! = $status;
		2617	},
		2618	)
		2619	};
		2620
		2621	unless ($DB_ENV) {
		2622	$DB_ENV = BDB::db_env_create;
		2623
		2624	cf::sync_job {
		2625	eval {
		2626	BDB::db_env_open
		2627	$DB_ENV,
		2628	$BDB_ENV_DIR,
		2629	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2630	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2631	0666;
		2632
		2633	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2634
		2635	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2636	$DB_ENV->set_lk_detect;
		2637	};
		2638
		2639	cf::cleanup "db_env_open(db): $@" if $@;
		2640	};
		2641	}
		2642	}
		2643
		2644	{
		2645	IO::AIO::min_parallel 8;
		2646
		2647	undef $Coro::AIO::WATCHER;
		2648	IO::AIO::max_poll_time $TICK * 0.1;
		2649	$AIO_POLL_WATCHER = Event->io (
		2650	reentrant => 0,
		2651	data => WF_AUTOCANCEL,
		2652	fd => IO::AIO::poll_fileno,
		2653	poll => 'r',
		2654	prio => 6,
		2655	cb => \&IO::AIO::poll_cb,
		2656	);
		2657	}
		2658
		2659	END { cf::emergency_save }
898		2660
899	1	2661	1
900		2662

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