ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.45 by root, Sat Aug 26 23:36:32 2006 UTC vs.
Revision 1.233 by root, Wed Apr 4 02:20:27 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;
		9	use Event;
6	use Opcode;	10	use Opcode;
7	use Safe;	11	use Safe;
8	use Safe::Hole;	12	use Safe::Hole;
9		13
		14	use Coro 3.52 ();
		15	use Coro::State;
		16	use Coro::Event;
		17	use Coro::Timer;
		18	use Coro::Signal;
		19	use Coro::Semaphore;
		20	use Coro::AIO;
		21
		22	use BDB ();
		23	use Data::Dumper;
		24	use Digest::MD5;
		25	use Fcntl;
		26	use YAML::Syck ();
		27	use IO::AIO 2.32 ();
10	use Time::HiRes;	28	use Time::HiRes;
11	use Event;	29	use Compress::LZF;
		30
		31	# configure various modules to our taste
		32	#
		33	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		34	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		35
12	$Event::Eval = 1; # no idea why this is required, but it is	36	$Event::Eval = 1; # no idea why this is required, but it is
13		37
14	use strict;	38	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
		39	$YAML::Syck::ImplicitUnicode = 1;
15		40
		41	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		42
		43	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		44
16	our %COMMAND = ();	45	our %COMMAND = ();
		46	our %COMMAND_TIME = ();
		47
		48	our @EXTS = (); # list of extension package names
		49	our %EXTCMD = ();
		50	our %EXT_CORO = (); # coroutines bound to extensions
		51	our %EXT_MAP = (); # pluggable maps
		52
		53	our $RELOAD; # number of reloads so far
17	our @EVENT;	54	our @EVENT;
18	our %PROP_TYPE;	55	our $LIBDIR = datadir . "/ext";
19	our %PROP_IDX;
20	our $LIBDIR = maps_directory "perl";
21		56
22	our $TICK = MAX_TIME * 1e-6;	57	our $TICK = MAX_TIME * 1e-6;
23	our $TICK_WATCHER;	58	our $TICK_WATCHER;
		59	our $AIO_POLL_WATCHER;
		60	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
24	our $NEXT_TICK;	61	our $NEXT_TICK;
		62	our $NOW;
		63	our $USE_FSYNC = 1; # use fsync to write maps - default off
		64
		65	our $BDB_POLL_WATCHER;
		66	our $DB_ENV;
		67
		68	our %CFG;
		69
		70	our $UPTIME; $UPTIME ||= time;
		71	our $RUNTIME;
		72
		73	our %PLAYER; # all users
		74	our %MAP; # all maps
		75	our $LINK_MAP; # the special {link} map, which is always available
		76	our $RANDOM_MAPS = cf::localdir . "/random";
		77	our $BDB_ENV_DIR = cf::localdir . "/db";
		78
		79	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		80	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		81
		82	# used to convert map paths into valid unix filenames by replacing / by ∕
		83	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		84
		85	binmode STDOUT;
		86	binmode STDERR;
		87
		88	# read virtual server time, if available
		89	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		90	open my $fh, "<", cf::localdir . "/runtime"
		91	or die "unable to read runtime file: $!";
		92	$RUNTIME = <$fh> + 0.;
		93	}
		94
		95	mkdir cf::localdir;
		96	mkdir cf::localdir . "/" . cf::playerdir;
		97	mkdir cf::localdir . "/" . cf::tmpdir;
		98	mkdir cf::localdir . "/" . cf::uniquedir;
		99	mkdir $RANDOM_MAPS;
		100	mkdir $BDB_ENV_DIR;
		101
		102	our $EMERGENCY_POSITION;
		103
		104	sub cf::map::normalise;
		105
		106	#############################################################################
		107
		108	=head2 GLOBAL VARIABLES
		109
		110	=over 4
		111
		112	=item $cf::UPTIME
		113
		114	The timestamp of the server start (so not actually an uptime).
		115
		116	=item $cf::RUNTIME
		117
		118	The time this server has run, starts at 0 and is increased by $cf::TICK on
		119	every server tick.
		120
		121	=item $cf::LIBDIR
		122
		123	The perl library directory, where extensions and cf-specific modules can
		124	be found. It will be added to C<@INC> automatically.
		125
		126	=item $cf::NOW
		127
		128	The time of the last (current) server tick.
		129
		130	=item $cf::TICK
		131
		132	The interval between server ticks, in seconds.
		133
		134	=item %cf::CFG
		135
		136	Configuration for the server, loaded from C</etc/crossfire/config>, or
		137	from wherever your confdir points to.
		138
		139	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		140
		141	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		142	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		143	processing has been done. Call C<< ->wait >> on them to maximise the
		144	window of cpu time available, or simply to synchronise to the server tick.
		145
		146	=back
		147
		148	=cut
25		149
26	BEGIN {	150	BEGIN {
27	*CORE::GLOBAL::warn = sub {	151	*CORE::GLOBAL::warn = sub {
28	my $msg = join "", @_;	152	my $msg = join "", @_;
		153	utf8::encode $msg;
		154
29	$msg .= "\n"	155	$msg .= "\n"
30	unless $msg =~ /\n$/;	156	unless $msg =~ /\n$/;
31		157
32	print STDERR "cfperl: $msg";
33	LOG llevError, "cfperl: $msg";	158	LOG llevError, $msg;
34	};	159	};
35	}	160	}
36		161
37	my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply!	162	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
38		163	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
39	# generate property mutators	164	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
40	sub prop_gen {	165	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
41	my ($prefix, $class) = @_;	166	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
42
43	no strict 'refs';
44
45	for my $prop (keys %PROP_TYPE) {
46	$prop =~ /^\Q$prefix\E_(.*$)/ or next;
47	my $sub = lc $1;
48
49	my $type = $PROP_TYPE{$prop};
50	my $idx = $PROP_IDX {$prop};
51
52	*{"$class\::get_$sub"} = *{"$class\::$sub"} = sub {
53	$_[0]->get_property ($type, $idx)
54	};
55
56	*{"$class\::set_$sub"} = sub {
57	$_[0]->set_property ($type, $idx, $_[1]);
58	} unless $ignore_set{$prop};
59	}
60	}
61
62	# auto-generate most of the API
63
64	prop_gen OBJECT_PROP => "cf::object";
65	# CFAPI_OBJECT_ANIMATION?
66	prop_gen PLAYER_PROP => "cf::object::player";
67
68	prop_gen MAP_PROP => "cf::map";
69	prop_gen ARCH_PROP => "cf::arch";
70
71	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	167	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
72		168
73	# we bless all objects into (empty) derived classes to force a method lookup	169	# we bless all objects into (empty) derived classes to force a method lookup
74	# within the Safe compartment.	170	# within the Safe compartment.
75	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch)) {	171	for my $pkg (qw(
		172	cf::global cf::attachable
		173	cf::object cf::object::player
		174	cf::client cf::player
		175	cf::arch cf::living
		176	cf::map cf::party cf::region
		177	)) {
76	no strict 'refs';	178	no strict 'refs';
77	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	179	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
78	}	180	}
79		181
80	$Event::DIED = sub {	182	$Event::DIED = sub {
81	warn "error in event callback: @_";	183	warn "error in event callback: @_";
82	};	184	};
83		185
84	my %ext_pkg;	186	=head2 UTILITY FUNCTIONS
85	my @exts;	187
86	my @hook;	188	=over 4
87	my %command;	189
88	my %extcmd;	190	=item dumpval $ref
		191
		192	=cut
		193
		194	sub dumpval {
		195	eval {
		196	local $SIG{__DIE__};
		197	my $d;
		198	if (1) {
		199	$d = new Data::Dumper([$_[0]], ["*var"]);
		200	$d->Terse(1);
		201	$d->Indent(2);
		202	$d->Quotekeys(0);
		203	$d->Useqq(1);
		204	#$d->Bless(...);
		205	$d->Seen($_[1]) if @_ > 1;
		206	$d = $d->Dump();
		207	}
		208	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		209	$d
		210	} || "[unable to dump $_[0]: '$@']";
		211	}
		212
		213	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
		214
		215	=item $ref = cf::from_json $json
		216
		217	Converts a JSON string into the corresponding perl data structure.
		218
		219	=item $json = cf::to_json $ref
		220
		221	Converts a perl data structure into its JSON representation.
		222
		223	=item cf::lock_wait $string
		224
		225	Wait until the given lock is available. See cf::lock_acquire.
		226
		227	=item my $lock = cf::lock_acquire $string
		228
		229	Wait until the given lock is available and then acquires it and returns
		230	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		231	for example when the coroutine gets canceled), the lock is automatically
		232	returned.
		233
		234	Lock names should begin with a unique identifier (for example, cf::map::find
		235	uses map_find and cf::map::load uses map_load).
		236
		237	=cut
		238
		239	our %LOCK;
		240
		241	sub lock_wait($) {
		242	my ($key) = @_;
		243
		244	# wait for lock, if any
		245	while ($LOCK{$key}) {
		246	push @{ $LOCK{$key} }, $Coro::current;
		247	Coro::schedule;
		248	}
		249	}
		250
		251	sub lock_acquire($) {
		252	my ($key) = @_;
		253
		254	# wait, to be sure we are not locked
		255	lock_wait $key;
		256
		257	$LOCK{$key} = [];
		258
		259	Coro::guard {
		260	# wake up all waiters, to be on the safe side
		261	$_->ready for @{ delete $LOCK{$key} };
		262	}
		263	}
		264
		265	sub freeze_mainloop {
		266	return unless $TICK_WATCHER->is_active;
		267
		268	my $guard = Coro::guard {
		269	$TICK_WATCHER->start;
		270	};
		271	$TICK_WATCHER->stop;
		272	$guard
		273	}
		274
		275	=item cf::async { BLOCK }
		276
		277	Currently the same as Coro::async_pool, meaning you cannot use
		278	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		279	thing you are allowed to do is call C<prio> on it.
		280
		281	=cut
		282
		283	BEGIN { *async = \&Coro::async_pool }
		284
		285	=item cf::sync_job { BLOCK }
		286
		287	The design of crossfire+ requires that the main coro ($Coro::main) is
		288	always able to handle events or runnable, as crossfire+ is only partly
		289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		290
		291	If it must be done, put the blocking parts into C<sync_job>. This will run
		292	the given BLOCK in another coroutine while waiting for the result. The
		293	server will be frozen during this time, so the block should either finish
		294	fast or be very important.
		295
		296	=cut
		297
		298	sub sync_job(&) {
		299	my ($job) = @_;
		300
		301	if ($Coro::current == $Coro::main) {
		302	# this is the main coro, too bad, we have to block
		303	# till the operation succeeds, freezing the server :/
		304
		305	# TODO: use suspend/resume instead
		306	# (but this is cancel-safe)
		307	my $freeze_guard = freeze_mainloop;
		308
		309	my $busy = 1;
		310	my @res;
		311
		312	(async {
		313	@res = eval { $job->() };
		314	warn $@ if $@;
		315	undef $busy;
		316	})->prio (Coro::PRIO_MAX);
		317
		318	while ($busy) {
		319	Coro::cede or Event::one_event;
		320	}
		321
		322	wantarray ? @res : $res[0]
		323	} else {
		324	# we are in another coroutine, how wonderful, everything just works
		325
		326	$job->()
		327	}
		328	}
		329
		330	=item $coro = cf::async_ext { BLOCK }
		331
		332	Like async, but this coro is automatically being canceled when the
		333	extension calling this is being unloaded.
		334
		335	=cut
		336
		337	sub async_ext(&) {
		338	my $cb = shift;
		339
		340	my $coro = &Coro::async ($cb);
		341
		342	$coro->on_destroy (sub {
		343	delete $EXT_CORO{$coro+0};
		344	});
		345	$EXT_CORO{$coro+0} = $coro;
		346
		347	$coro
		348	}
		349
		350	sub write_runtime {
		351	my $guard = cf::lock_acquire "write_runtime";
		352
		353	my $runtime = cf::localdir . "/runtime";
		354
		355	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		356	or return;
		357
		358	my $value = $cf::RUNTIME + 90 + 10;
		359	# 10 is the runtime save interval, for a monotonic clock
		360	# 60 allows for the watchdog to kill the server.
		361
		362	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		363	and return;
		364
		365	# always fsync - this file is important
		366	aio_fsync $fh
		367	and return;
		368
		369	close $fh
		370	or return;
		371
		372	aio_rename "$runtime~", $runtime
		373	and return;
		374
		375	1
		376	}
		377
		378	=item cf::datalog type => key => value, ...
		379
		380	Log a datalog packet of the given type with the given key-value pairs.
		381
		382	=cut
		383
		384	sub datalog($@) {
		385	my ($type, %kv) = @_;
		386	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		387	}
		388
		389	=back
		390
		391	=cut
89		392
90	#############################################################################	393	#############################################################################
91	# utility functions
92		394
93	use JSON::Syck (); # TODO# replace by JSON::PC once working	395	=head2 ATTACHABLE OBJECTS
94		396
95	sub from_json($) {	397	Many objects in crossfire are so-called attachable objects. That means you can
96	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs	398	attach callbacks/event handlers (a collection of which is called an "attachment")
97	JSON::Syck::Load $_[0]	399	to it. All such attachable objects support the following methods.
98	}
99		400
100	sub to_json($) {	401	In the following description, CLASS can be any of C<global>, C<object>
101	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	402	C<player>, C<client> or C<map> (i.e. the attachable objects in
102	JSON::Syck::Dump $_[0]	403	crossfire+).
103	}
104		404
105	#############################################################################	405	=over 4
106	# "new" plug-in system
107		406
108	=item cf::object::attach ... # NYI	407	=item $attachable->attach ($attachment, key => $value...)
109		408
110	=item cf::attach_global ...	409	=item $attachable->detach ($attachment)
111		410
112	=item cf::attach_to_type $object_type, ...	411	Attach/detach a pre-registered attachment to a specific object and give it
		412	the specified key/value pairs as arguments.
113		413
114	=item cf::attach_to_objects ...	414	Example, attach a minesweeper attachment to the given object, making it a
		415	10x10 minesweeper game:
115		416
116	=item cf::attach_to_players ...	417	$obj->attach (minesweeper => width => 10, height => 10);
117		418
118	=item cf::attach_to_maps ...	419	=item $bool = $attachable->attached ($name)
119		420
		421	Checks wether the named attachment is currently attached to the object.
		422
		423	=item cf::CLASS->attach ...
		424
		425	=item cf::CLASS->detach ...
		426
		427	Define an anonymous attachment and attach it to all objects of the given
		428	CLASS. See the next function for an explanation of its arguments.
		429
		430	You can attach to global events by using the C<cf::global> class.
		431
		432	Example, log all player logins:
		433
		434	cf::player->attach (
		435	on_login => sub {
		436	my ($pl) = @_;
		437	...
		438	},
		439	);
		440
		441	Example, attach to the jeweler skill:
		442
		443	cf::object->attach (
		444	type => cf::SKILL,
		445	subtype => cf::SK_JEWELER,
		446	on_use_skill => sub {
		447	my ($sk, $ob, $part, $dir, $msg) = @_;
		448	...
		449	},
		450	);
		451
120	=item cf:register_attachment $name, ...	452	=item cf::CLASS::attachment $name, ...
121		453
122	prio => $number, # lower is earlier	454	Register an attachment by C<$name> through which attachable objects of the
123	on_xxx => \&cb,	455	given CLASS can refer to this attachment.
		456
		457	Some classes such as crossfire maps and objects can specify attachments
		458	that are attached at load/instantiate time, thus the need for a name.
		459
		460	These calls expect any number of the following handler/hook descriptions:
		461
		462	=over 4
		463
		464	=item prio => $number
		465
		466	Set the priority for all following handlers/hooks (unless overwritten
		467	by another C<prio> setting). Lower priority handlers get executed
		468	earlier. The default priority is C<0>, and many built-in handlers are
		469	registered at priority C<-1000>, so lower priorities should not be used
		470	unless you know what you are doing.
		471
		472	=item type => $type
		473
		474	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		475	given type of objects only (the additional parameter C<subtype> can be
		476	used to further limit to the given subtype).
		477
		478	=item on_I<event> => \&cb
		479
		480	Call the given code reference whenever the named event happens (event is
		481	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
		482	handlers are recognised generally depends on the type of object these
		483	handlers attach to).
		484
		485	See F<include/eventinc.h> for the full list of events supported, and their
		486	class.
		487
124	package => package::,	488	=item package => package::
		489
		490	Look for sub functions of the name C<< on_I<event> >> in the given
		491	package and register them. Only handlers for eevents supported by the
		492	object/class are recognised.
		493
		494	=back
		495
		496	Example, define an attachment called "sockpuppet" that calls the given
		497	event handler when a monster attacks:
		498
		499	cf::object::attachment sockpuppet =>
		500	on_skill_attack => sub {
		501	my ($self, $victim) = @_;
		502	...
		503	}
		504	}
		505
		506	=item $attachable->valid
		507
		508	Just because you have a perl object does not mean that the corresponding
		509	C-level object still exists. If you try to access an object that has no
		510	valid C counterpart anymore you get an exception at runtime. This method
		511	can be used to test for existence of the C object part without causing an
		512	exception.
125		513
126	=cut	514	=cut
127		515
128	# the following variables are defined in .xs and must not be re-created	516	# the following variables are defined in .xs and must not be re-created
129	our @CB_GLOBAL = (); # registry for all global events	517	our @CB_GLOBAL = (); # registry for all global events
		518	our @CB_ATTACHABLE = (); # registry for all attachables
130	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	519	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
131	our @CB_PLAYER = ();	520	our @CB_PLAYER = ();
		521	our @CB_CLIENT = ();
132	our @CB_TYPE = (); # registry for type (cf-object class) based events	522	our @CB_TYPE = (); # registry for type (cf-object class) based events
133	our @CB_MAP = ();	523	our @CB_MAP = ();
134		524
135	my %attachment;	525	my %attachment;
136		526
		527	sub cf::attachable::thawer_merge {
		528	# simply override everything except _meta
		529	local $_[0]{_meta};
		530	%{$_[0]} = %{$_[1]};
		531	}
		532
137	sub _attach_cb($\%$$$) {	533	sub _attach_cb($$$$) {
138	my ($registry, $undo, $event, $prio, $cb) = @_;	534	my ($registry, $event, $prio, $cb) = @_;
139		535
140	use sort 'stable';	536	use sort 'stable';
141		537
142	$cb = [$prio, $cb];	538	$cb = [$prio, $cb];
143		539
144	@{$registry->[$event]} = sort	540	@{$registry->[$event]} = sort
145	{ $a->[0] cmp $b->[0] }	541	{ $a->[0] cmp $b->[0] }
146	@{$registry->[$event] || []}, $cb;	542	@{$registry->[$event] || []}, $cb;
147
148	push @{$undo->{cb}}, [$event, $cb];
149	}	543	}
		544
		545	# hack
		546	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
150		547
151	# attach handles attaching event callbacks	548	# attach handles attaching event callbacks
152	# the only thing the caller has to do is pass the correct	549	# the only thing the caller has to do is pass the correct
153	# registry (== where the callback attaches to).	550	# registry (== where the callback attaches to).
154	sub _attach(\@$@) {	551	sub _attach {
155	my ($registry, $klass, @arg) = @_;	552	my ($registry, $klass, @arg) = @_;
156		553
		554	my $object_type;
157	my $prio = 0;	555	my $prio = 0;
158
159	my %undo = (
160	registry => $registry,
161	cb => [],
162	);
163
164	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	556	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		557
		558	#TODO: get rid of this hack
		559	if ($attachable_klass{$klass}) {
		560	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		561	}
165		562
166	while (@arg) {	563	while (@arg) {
167	my $type = shift @arg;	564	my $type = shift @arg;
168		565
169	if ($type eq "prio") {	566	if ($type eq "prio") {
170	$prio = shift @arg;	567	$prio = shift @arg;
171		568
		569	} elsif ($type eq "type") {
		570	$object_type = shift @arg;
		571	$registry = $CB_TYPE[$object_type] ||= [];
		572
		573	} elsif ($type eq "subtype") {
		574	defined $object_type or Carp::croak "subtype specified without type";
		575	my $object_subtype = shift @arg;
		576	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		577
172	} elsif ($type eq "package") {	578	} elsif ($type eq "package") {
173	my $pkg = shift @arg;	579	my $pkg = shift @arg;
174		580
175	while (my ($name, $id) = each %cb_id) {	581	while (my ($name, $id) = each %cb_id) {
176	if (my $cb = $pkg->can ($name)) {	582	if (my $cb = $pkg->can ($name)) {
177	_attach_cb $registry, %undo, $id, $prio, $cb;	583	_attach_cb $registry, $id, $prio, $cb;
178	}	584	}
179	}	585	}
180		586
181	} elsif (exists $cb_id{$type}) {	587	} elsif (exists $cb_id{$type}) {
182	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;	588	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
183		589
184	} elsif (ref $type) {	590	} elsif (ref $type) {
185	warn "attaching objects not supported, ignoring.\n";	591	warn "attaching objects not supported, ignoring.\n";
186		592
187	} else {	593	} else {
188	shift @arg;	594	shift @arg;
189	warn "attach argument '$type' not supported, ignoring.\n";	595	warn "attach argument '$type' not supported, ignoring.\n";
190	}	596	}
191	}	597	}
192
193	\%undo
194	}	598	}
195		599
196	sub cf::object::attach {	600	sub _object_attach {
197	die;	601	my ($obj, $name, %arg) = @_;
198	}
199		602
200	sub attach_global {	603	return if exists $obj->{_attachment}{$name};
201	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
202	}
203		604
204	sub attach_to_type {	605	if (my $attach = $attachment{$name}) {
205	my $type = shift;	606	my $registry = $obj->registry;
206		607
207	_attach @{$CB_TYPE[$type]}, KLASS_OBJECT, @_	608	for (@$attach) {
208	}	609	my ($klass, @attach) = @$_;
		610	_attach $registry, $klass, @attach;
		611	}
209		612
210	sub attach_to_objects {	613	$obj->{$name} = \%arg;
211	_attach @CB_OBJECT, KLASS_OBJECT, @_	614	} else {
212	}	615	warn "object uses attachment '$name' that is not available, postponing.\n";
		616	}
213		617
214	sub attach_to_players {	618	$obj->{_attachment}{$name} = undef;
215	_attach @CB_PLAYER, KLASS_PLAYER, @_
216	}	619	}
217		620
218	sub attach_to_maps {	621	sub cf::attachable::attach {
219	_attach @CB_MAP, KLASS_MAP, @_	622	if (ref $_[0]) {
220	}	623	_object_attach @_;
		624	} else {
		625	_attach shift->_attach_registry, @_;
		626	}
		627	};
221		628
222	sub register_attachment {	629	# all those should be optimised
		630	sub cf::attachable::detach {
		631	my ($obj, $name) = @_;
		632
		633	if (ref $obj) {
		634	delete $obj->{_attachment}{$name};
		635	reattach ($obj);
		636	} else {
		637	Carp::croak "cannot, currently, detach class attachments";
		638	}
		639	};
		640
		641	sub cf::attachable::attached {
		642	my ($obj, $name) = @_;
		643
		644	exists $obj->{_attachment}{$name}
		645	}
		646
		647	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		648	eval "#line " . __LINE__ . " 'cf.pm'
		649	sub cf::\L$klass\E::_attach_registry {
		650	(\\\@CB_$klass, KLASS_$klass)
		651	}
		652
		653	sub cf::\L$klass\E::attachment {
223	my $name = shift;	654	my \$name = shift;
224		655
225	$attachment{$name} = [@_];	656	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		657	}
		658	";
		659	die if $@;
226	}	660	}
227		661
228	our $override;	662	our $override;
229	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	663	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
230		664
…		…
244	for (@$callbacks) {	678	for (@$callbacks) {
245	eval { &{$_->[1]} };	679	eval { &{$_->[1]} };
246		680
247	if ($@) {	681	if ($@) {
248	warn "$@";	682	warn "$@";
249	warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n";	683	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
250	override;	684	override;
251	}	685	}
252		686
253	return 1 if $override;	687	return 1 if $override;
254	}	688	}
255		689
256	0	690	0
257	}	691	}
		692
		693	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		694
		695	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		696
		697	Generate an object-specific event with the given arguments.
		698
		699	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		700	removed in future versions), and there is no public API to access override
		701	results (if you must, access C<@cf::invoke_results> directly).
		702
		703	=back
		704
		705	=cut
258		706
259	#############################################################################	707	#############################################################################
260	# object support	708	# object support
261		709
262	sub instantiate {	710	sub reattach {
		711	# basically do the same as instantiate, without calling instantiate
263	my ($obj, $data) = @_;	712	my ($obj) = @_;
		713
		714	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		715
264	my $registry = $obj->registry;	716	my $registry = $obj->registry;
265		717
266	$data = from_json $data;	718	@$registry = ();
267		719
268	for (@$data) {	720	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
269	my ($pri, $name, @args) = @$_;
270		721
		722	for my $name (keys %{ $obj->{_attachment} || {} }) {
271	if (my $attach = $attachment{$name}) {	723	if (my $attach = $attachment{$name}) {
		724	for (@$attach) {
		725	my ($klass, @attach) = @$_;
272	_attach @$registry, KLASS_OBJECT, @$attach;	726	_attach $registry, $klass, @attach;
		727	}
		728	} else {
		729	warn "object uses attachment '$name' that is not available, postponing.\n";
		730	}
		731	}
		732	}
273		733
274	if (my $cb = delete $registry->[EVENT_OBJECT_INSTANTIATE]) {	734	cf::attachable->attach (
		735	prio => -1000000,
		736	on_instantiate => sub {
		737	my ($obj, $data) = @_;
		738
		739	$data = from_json $data;
		740
		741	for (@$data) {
		742	my ($name, $args) = @$_;
		743
		744	$obj->attach ($name, %{$args || {} });
		745	}
		746	},
		747	on_reattach => \&reattach,
		748	on_clone => sub {
		749	my ($src, $dst) = @_;
		750
		751	@{$dst->registry} = @{$src->registry};
		752
		753	%$dst = %$src;
		754
		755	%{$dst->{_attachment}} = %{$src->{_attachment}}
		756	if exists $src->{_attachment};
		757	},
		758	);
		759
		760	sub object_freezer_save {
		761	my ($filename, $rdata, $objs) = @_;
		762
		763	sync_job {
		764	if (length $$rdata) {
		765	warn sprintf "saving %s (%d,%d)\n",
		766	$filename, length $$rdata, scalar @$objs;
		767
		768	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		769	chmod SAVE_MODE, $fh;
		770	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		771	aio_fsync $fh if $cf::USE_FSYNC;
		772	close $fh;
		773
275	for (@$cb) {	774	if (@$objs) {
276	eval { $_->[1]->($obj, @args); };	775	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
277	if ($@) {	776	chmod SAVE_MODE, $fh;
278	warn "$@";	777	my $data = Storable::nfreeze { version => 1, objs => $objs };
279	warn "... while processing '$name' instantiate with args <@args>\n";	778	aio_write $fh, 0, (length $data), $data, 0;
		779	aio_fsync $fh if $cf::USE_FSYNC;
		780	close $fh;
		781	aio_rename "$filename.pst~", "$filename.pst";
280	}	782	}
		783	} else {
		784	aio_unlink "$filename.pst";
		785	}
		786
		787	aio_rename "$filename~", $filename;
		788	} else {
		789	warn "FATAL: $filename~: $!\n";
		790	}
		791	} else {
		792	aio_unlink $filename;
		793	aio_unlink "$filename.pst";
		794	}
		795	}
		796	}
		797
		798	sub object_freezer_as_string {
		799	my ($rdata, $objs) = @_;
		800
		801	use Data::Dumper;
		802
		803	$$rdata . Dumper $objs
		804	}
		805
		806	sub object_thawer_load {
		807	my ($filename) = @_;
		808
		809	my ($data, $av);
		810
		811	(aio_load $filename, $data) >= 0
		812	or return;
		813
		814	unless (aio_stat "$filename.pst") {
		815	(aio_load "$filename.pst", $av) >= 0
		816	or return;
		817	$av = eval { (Storable::thaw $av)->{objs} };
		818	}
		819
		820	warn sprintf "loading %s (%d)\n",
		821	$filename, length $data, scalar @{$av || []};#d#
		822	return ($data, $av);
		823	}
		824
		825	#############################################################################
		826	# command handling &c
		827
		828	=item cf::register_command $name => \&callback($ob,$args);
		829
		830	Register a callback for execution when the client sends the user command
		831	$name.
		832
		833	=cut
		834
		835	sub register_command {
		836	my ($name, $cb) = @_;
		837
		838	my $caller = caller;
		839	#warn "registering command '$name/$time' to '$caller'";
		840
		841	push @{ $COMMAND{$name} }, [$caller, $cb];
		842	}
		843
		844	=item cf::register_extcmd $name => \&callback($pl,$packet);
		845
		846	Register a callbackf ro execution when the client sends an extcmd packet.
		847
		848	If the callback returns something, it is sent back as if reply was being
		849	called.
		850
		851	=cut
		852
		853	sub register_extcmd {
		854	my ($name, $cb) = @_;
		855
		856	$EXTCMD{$name} = $cb;
		857	}
		858
		859	cf::player->attach (
		860	on_command => sub {
		861	my ($pl, $name, $params) = @_;
		862
		863	my $cb = $COMMAND{$name}
		864	or return;
		865
		866	for my $cmd (@$cb) {
		867	$cmd->[1]->($pl->ob, $params);
		868	}
		869
		870	cf::override;
		871	},
		872	on_extcmd => sub {
		873	my ($pl, $buf) = @_;
		874
		875	my $msg = eval { from_json $buf };
		876
		877	if (ref $msg) {
		878	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		879	if (my %reply = $cb->($pl, $msg)) {
		880	$pl->ext_reply ($msg->{msgid}, %reply);
281	}	881	}
282	}	882	}
283	} else {	883	} else {
284	warn "object uses attachment $name that is not available, postponing.\n";	884	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
285	}	885	}
286		886
287	push @{$obj->{_attachment}}, $name;	887	cf::override;
288	}
289	}
290
291	# basically do the same as instantiate, without calling instantiate
292	sub reattach {
293	my ($obj) = @_;
294	my $registry = $obj->registry;
295
296	warn "reattach<@_, $_>\n";
297	}
298
299	attach_to_objects
300	prio => -1000000,
301	on_clone => sub {
302	my ($src, $dst) = @_;
303
304	@{$dst->registry} = @{$src->registry};
305	warn "registry clone ", join ":", @{$src->registry};#d#
306
307	%$dst = %$src;
308
309	$dst->{_attachment} = [@{ $src->{_attachment} }]
310	if exists $src->{_attachment};
311
312	warn "clone<@_>\n";#d#
313	},	888	},
314	;	889	);
315
316	#############################################################################
317	# old plug-in events
318
319	sub inject_event {
320	my $extension = shift;
321	my $event_code = shift;
322
323	my $cb = $hook[$event_code]{$extension}
324	or return;
325
326	&$cb
327	}
328
329	sub inject_global_event {
330	my $event = shift;
331
332	my $cb = $hook[$event]
333	or return;
334
335	List::Util::max map &$_, values %$cb
336	}
337
338	sub inject_command {
339	my ($name, $obj, $params) = @_;
340
341	for my $cmd (@{ $command{$name} }) {
342	$cmd->[1]->($obj, $params);
343	}
344
345	-1
346	}
347
348	sub register_command {
349	my ($name, $time, $cb) = @_;
350
351	my $caller = caller;
352	#warn "registering command '$name/$time' to '$caller'";
353
354	push @{ $command{$name} }, [$time, $cb, $caller];
355	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
356	}
357
358	sub register_extcmd {
359	my ($name, $cb) = @_;
360
361	my $caller = caller;
362	#warn "registering extcmd '$name' to '$caller'";
363
364	$extcmd{$name} = [$cb, $caller];
365	}
366
367	sub register {
368	my ($base, $pkg) = @_;
369
370	#TODO
371	}
372		890
373	sub load_extension {	891	sub load_extension {
374	my ($path) = @_;	892	my ($path) = @_;
375		893
376	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	894	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
377	my $base = $1;	895	my $base = $1;
378	my $pkg = $1;	896	my $pkg = $1;
379	$pkg =~ s/[^[:word:]]/_/g;	897	$pkg =~ s/[^[:word:]]/_/g;
380	$pkg = "ext::$pkg";	898	$pkg = "ext::$pkg";
381		899
382	warn "loading '$path' into '$pkg'\n";	900	warn "... loading '$path' into '$pkg'\n";
383		901
384	open my $fh, "<:utf8", $path	902	open my $fh, "<:utf8", $path
385	or die "$path: $!";	903	or die "$path: $!";
386		904
387	my $source =	905	my $source =
388	"package $pkg; use strict; use utf8;\n"	906	"package $pkg; use strict; use utf8;\n"
389	. "#line 1 \"$path\"\n{\n"	907	. "#line 1 \"$path\"\n{\n"
390	. (do { local $/; <$fh> })	908	. (do { local $/; <$fh> })
391	. "\n};\n1";	909	. "\n};\n1";
392		910
393	eval $source	911	unless (eval $source) {
394	or die "$path: $@";	912	my $msg = $@ ? "$path: $@\n"
395		913	: "extension disabled.\n";
396	push @exts, $pkg;	914	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
397	$ext_pkg{$base} = $pkg;	915	warn $@;
398		916	warn "mandatory extension failed to load, exiting.\n";
399	# no strict 'refs';	917	exit 1;
400	# @{"$pkg\::ISA"} = ext::;	918	}
401		919	die $@;
402	register $base, $pkg;
403	}
404
405	sub unload_extension {
406	my ($pkg) = @_;
407
408	warn "removing extension $pkg\n";
409
410	# remove hooks
411	#TODO
412	# for my $idx (0 .. $#PLUGIN_EVENT) {
413	# delete $hook[$idx]{$pkg};
414	# }	920	}
415		921
416	# remove commands	922	push @EXTS, $pkg;
417	for my $name (keys %command) {
418	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };
419
420	if (@cb) {
421	$command{$name} = \@cb;
422	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
423	} else {
424	delete $command{$name};
425	delete $COMMAND{"$name\000"};
426	}
427	}
428
429	# remove extcmds
430	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {
431	delete $extcmd{$name};
432	}
433
434	if (my $cb = $pkg->can ("unload")) {
435	eval {
436	$cb->($pkg);
437	1
438	} or warn "$pkg unloaded, but with errors: $@";
439	}
440
441	Symbol::delete_package $pkg;
442	}	923	}
443		924
444	sub load_extensions {	925	sub load_extensions {
445	my $LIBDIR = maps_directory "perl";
446
447	for my $ext (<$LIBDIR/*.ext>) {	926	for my $ext (<$LIBDIR/*.ext>) {
448	next unless -r $ext;	927	next unless -r $ext;
449	eval {	928	eval {
450	load_extension $ext;	929	load_extension $ext;
451	1	930	1
452	} or warn "$ext not loaded: $@";	931	} or warn "$ext not loaded: $@";
453	}	932	}
454	}	933	}
455		934
456	sub _perl_reload(&) {	935	#############################################################################
		936
		937	=head2 CORE EXTENSIONS
		938
		939	Functions and methods that extend core crossfire objects.
		940
		941	=cut
		942
		943	package cf::player;
		944
		945	use Coro::AIO;
		946
		947	=head3 cf::player
		948
		949	=over 4
		950
		951	=item cf::player::find $login
		952
		953	Returns the given player object, loading it if necessary (might block).
		954
		955	=cut
		956
		957	sub playerdir($) {
		958	cf::localdir
		959	. "/"
		960	. cf::playerdir
		961	. "/"
		962	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		963	}
		964
		965	sub path($) {
		966	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		967
		968	(playerdir $login) . "/$login.pl"
		969	}
		970
		971	sub find_active($) {
		972	$cf::PLAYER{$_[0]}
		973	and $cf::PLAYER{$_[0]}->active
		974	and $cf::PLAYER{$_[0]}
		975	}
		976
		977	sub exists($) {
		978	my ($login) = @_;
		979
		980	$cf::PLAYER{$login}
		981	or cf::sync_job { !aio_stat path $login }
		982	}
		983
		984	sub find($) {
		985	return $cf::PLAYER{$_[0]} || do {
		986	my $login = $_[0];
		987
		988	my $guard = cf::lock_acquire "user_find:$login";
		989
		990	$cf::PLAYER{$_[0]} || do {
		991	my $pl = load_pl path $login
		992	or return;
		993	$cf::PLAYER{$login} = $pl
		994	}
		995	}
		996	}
		997
		998	sub save($) {
		999	my ($pl) = @_;
		1000
		1001	return if $pl->{deny_save};
		1002
		1003	my $path = path $pl;
		1004	my $guard = cf::lock_acquire "user_save:$path";
		1005
		1006	return if $pl->{deny_save};
		1007
		1008	aio_mkdir playerdir $pl, 0770;
		1009	$pl->{last_save} = $cf::RUNTIME;
		1010
		1011	$pl->save_pl ($path);
		1012	Coro::cede;
		1013	}
		1014
		1015	sub new($) {
		1016	my ($login) = @_;
		1017
		1018	my $self = create;
		1019
		1020	$self->ob->name ($login);
		1021	$self->{deny_save} = 1;
		1022
		1023	$cf::PLAYER{$login} = $self;
		1024
		1025	$self
		1026	}
		1027
		1028	=item $pl->quit_character
		1029
		1030	Nukes the player without looking back. If logged in, the connection will
		1031	be destroyed. May block for a long time.
		1032
		1033	=cut
		1034
		1035	sub quit_character {
		1036	my ($pl) = @_;
		1037
		1038	my $name = $pl->ob->name;
		1039
		1040	$pl->{deny_save} = 1;
		1041	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1042
		1043	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1044	$pl->deactivate;
		1045	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1046	$pl->ns->destroy if $pl->ns;
		1047
		1048	my $path = playerdir $pl;
		1049	my $temp = "$path~$cf::RUNTIME~deleting~";
		1050	aio_rename $path, $temp;
		1051	delete $cf::PLAYER{$pl->ob->name};
		1052	$pl->destroy;
		1053
		1054	my $prefix = qr<^~\Q$name\E/>;
		1055
		1056	# nuke player maps
		1057	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1058
		1059	IO::AIO::aio_rmtree $temp;
		1060	}
		1061
		1062	=item $pl->kick
		1063
		1064	Kicks a player out of the game. This destroys the connection.
		1065
		1066	=cut
		1067
		1068	sub kick {
		1069	my ($pl, $kicker) = @_;
		1070
		1071	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1072	$pl->killer ("kicked");
		1073	$pl->ns->destroy;
		1074	}
		1075
		1076	=item cf::player::list_logins
		1077
		1078	Returns am arrayref of all valid playernames in the system, can take a
		1079	while and may block, so not sync_job-capable, ever.
		1080
		1081	=cut
		1082
		1083	sub list_logins {
		1084	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1085	or return [];
		1086
		1087	my @logins;
		1088
		1089	for my $login (@$dirs) {
		1090	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1091	aio_read $fh, 0, 512, my $buf, 0 or next;
		1092	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1093
		1094	utf8::decode $login;
		1095	push @logins, $login;
		1096	}
		1097
		1098	\@logins
		1099	}
		1100
		1101	=item $player->maps
		1102
		1103	Returns an arrayref of map paths that are private for this
		1104	player. May block.
		1105
		1106	=cut
		1107
		1108	sub maps($) {
		1109	my ($pl) = @_;
		1110
		1111	$pl = ref $pl ? $pl->ob->name : $pl;
		1112
		1113	my $files = aio_readdir playerdir $pl
		1114	or return;
		1115
		1116	my @paths;
		1117
		1118	for (@$files) {
		1119	utf8::decode $_;
		1120	next if /\.(?:pl|pst)$/;
		1121	next unless /^$PATH_SEP/o;
		1122
		1123	push @paths, cf::map::normalise "~$pl/$_";
		1124	}
		1125
		1126	\@paths
		1127	}
		1128
		1129	=item $player->ext_reply ($msgid, %msg)
		1130
		1131	Sends an ext reply to the player.
		1132
		1133	=cut
		1134
		1135	sub ext_reply($$%) {
		1136	my ($self, $id, %msg) = @_;
		1137
		1138	$msg{msgid} = $id;
		1139
		1140	$self->send ("ext " . cf::to_json \%msg);
		1141	}
		1142
		1143	=item $player->ext_event ($type, %msg)
		1144
		1145	Sends an ext event to the client.
		1146
		1147	=cut
		1148
		1149	sub ext_event($$%) {
		1150	my ($self, $type, %msg) = @_;
		1151
		1152	$self->ns->ext_event ($type, %msg);
		1153	}
		1154
		1155	package cf;
		1156
		1157	=back
		1158
		1159
		1160	=head3 cf::map
		1161
		1162	=over 4
		1163
		1164	=cut
		1165
		1166	package cf::map;
		1167
		1168	use Fcntl;
		1169	use Coro::AIO;
		1170
		1171	use overload
		1172	'""' => \&as_string,
		1173	fallback => 1;
		1174
		1175	our $MAX_RESET = 3600;
		1176	our $DEFAULT_RESET = 3000;
		1177
		1178	sub generate_random_map {
		1179	my ($self, $rmp) = @_;
		1180	# mit "rum" bekleckern, nicht
		1181	$self->_create_random_map (
		1182	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1183	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1184	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1185	$rmp->{exit_on_final_map},
		1186	$rmp->{xsize}, $rmp->{ysize},
		1187	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1188	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1189	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1190	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1191	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1192	(cf::region::find $rmp->{region}), $rmp->{custom}
		1193	)
		1194	}
		1195
		1196	=item cf::map->register ($regex, $prio)
		1197
		1198	Register a handler for the map path matching the given regex at the
		1199	givne priority (higher is better, built-in handlers have priority 0, the
		1200	default).
		1201
		1202	=cut
		1203
		1204	sub register {
		1205	my (undef, $regex, $prio) = @_;
		1206	my $pkg = caller;
		1207
		1208	no strict;
		1209	push @{"$pkg\::ISA"}, __PACKAGE__;
		1210
		1211	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1212	}
		1213
		1214	# also paths starting with '/'
		1215	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1216
		1217	sub thawer_merge {
		1218	my ($self, $merge) = @_;
		1219
		1220	# we have to keep some variables in memory intact
		1221	local $self->{path};
		1222	local $self->{load_path};
		1223	local $self->{deny_save};
		1224	local $self->{deny_reset};
		1225
		1226	$self->SUPER::thawer_merge ($merge);
		1227	}
		1228
		1229	sub normalise {
		1230	my ($path, $base) = @_;
		1231
		1232	$path = "$path"; # make sure its a string
		1233
		1234	$path =~ s/\.map$//;
		1235
		1236	# map plan:
		1237	#
		1238	# /! non-realised random map exit (special hack!)
		1239	# {... are special paths that are not being touched
		1240	# ?xxx/... are special absolute paths
		1241	# ?random/... random maps
		1242	# /... normal maps
		1243	# ~user/... per-player map of a specific user
		1244
		1245	$path =~ s/$PATH_SEP/\//go;
		1246
		1247	# treat it as relative path if it starts with
		1248	# something that looks reasonable
		1249	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1250	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1251
		1252	$base =~ s{[^/]+/?$}{};
		1253	$path = "$base/$path";
		1254	}
		1255
		1256	for ($path) {
		1257	redo if s{//}{/};
		1258	redo if s{/\.?/}{/};
		1259	redo if s{/[^/]+/\.\./}{/};
		1260	}
		1261
		1262	$path
		1263	}
		1264
		1265	sub new_from_path {
		1266	my (undef, $path, $base) = @_;
		1267
		1268	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1269
		1270	$path = normalise $path, $base;
		1271
		1272	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1273	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1274	my $self = bless cf::map::new, $pkg;
		1275	$self->{path} = $path; $self->path ($path);
		1276	$self->init; # pass $1 etc.
		1277	return $self;
		1278	}
		1279	}
		1280
		1281	Carp::carp "unable to resolve path '$path' (base '$base').";
		1282	()
		1283	}
		1284
		1285	sub init {
		1286	my ($self) = @_;
		1287
		1288	$self
		1289	}
		1290
		1291	sub as_string {
		1292	my ($self) = @_;
		1293
		1294	"$self->{path}"
		1295	}
		1296
		1297	# the displayed name, this is a one way mapping
		1298	sub visible_name {
		1299	&as_string
		1300	}
		1301
		1302	# the original (read-only) location
		1303	sub load_path {
		1304	my ($self) = @_;
		1305
		1306	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1307	}
		1308
		1309	# the temporary/swap location
		1310	sub save_path {
		1311	my ($self) = @_;
		1312
		1313	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1314	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1315	}
		1316
		1317	# the unique path, undef == no special unique path
		1318	sub uniq_path {
		1319	my ($self) = @_;
		1320
		1321	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1322	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1323	}
		1324
		1325	# and all this just because we cannot iterate over
		1326	# all maps in C++...
		1327	sub change_all_map_light {
		1328	my ($change) = @_;
		1329
		1330	$_->change_map_light ($change)
		1331	for grep $_->outdoor, values %cf::MAP;
		1332	}
		1333
		1334	sub unlink_save {
		1335	my ($self) = @_;
		1336
		1337	utf8::encode (my $save = $self->save_path);
		1338	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1339	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1340	}
		1341
		1342	sub load_header_from($) {
		1343	my ($self, $path) = @_;
		1344
		1345	utf8::encode $path;
		1346	#aio_open $path, O_RDONLY, 0
		1347	# or return;
		1348
		1349	$self->_load_header ($path)
		1350	or return;
		1351
		1352	$self->{load_path} = $path;
		1353
		1354	1
		1355	}
		1356
		1357	sub load_header_orig {
		1358	my ($self) = @_;
		1359
		1360	$self->load_header_from ($self->load_path)
		1361	}
		1362
		1363	sub load_header_temp {
		1364	my ($self) = @_;
		1365
		1366	$self->load_header_from ($self->save_path)
		1367	}
		1368
		1369	sub prepare_temp {
		1370	my ($self) = @_;
		1371
		1372	$self->last_access ((delete $self->{last_access})
		1373	|| $cf::RUNTIME); #d#
		1374	# safety
		1375	$self->{instantiate_time} = $cf::RUNTIME
		1376	if $self->{instantiate_time} > $cf::RUNTIME;
		1377	}
		1378
		1379	sub prepare_orig {
		1380	my ($self) = @_;
		1381
		1382	$self->{load_original} = 1;
		1383	$self->{instantiate_time} = $cf::RUNTIME;
		1384	$self->last_access ($cf::RUNTIME);
		1385	$self->instantiate;
		1386	}
		1387
		1388	sub load_header {
		1389	my ($self) = @_;
		1390
		1391	if ($self->load_header_temp) {
		1392	$self->prepare_temp;
		1393	} else {
		1394	$self->load_header_orig
		1395	or return;
		1396	$self->prepare_orig;
		1397	}
		1398
		1399	1
		1400	}
		1401
		1402	sub find;
		1403	sub find {
		1404	my ($path, $origin) = @_;
		1405
		1406	$path = normalise $path, $origin && $origin->path;
		1407
		1408	cf::lock_wait "map_find:$path";
		1409
		1410	$cf::MAP{$path} || do {
		1411	my $guard = cf::lock_acquire "map_find:$path";
		1412	my $map = new_from_path cf::map $path
		1413	or return;
		1414
		1415	$map->{last_save} = $cf::RUNTIME;
		1416
		1417	$map->load_header
		1418	or return;
		1419
		1420	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1421	# doing this can freeze the server in a sync job, obviously
		1422	#$cf::WAIT_FOR_TICK->wait;
		1423	$map->reset;
		1424	undef $guard;
		1425	return find $path;
		1426	}
		1427
		1428	$cf::MAP{$path} = $map
		1429	}
		1430	}
		1431
		1432	sub pre_load { }
		1433	sub post_load { }
		1434
		1435	sub load {
		1436	my ($self) = @_;
		1437
		1438	local $self->{deny_reset} = 1; # loading can take a long time
		1439
		1440	my $path = $self->{path};
		1441	my $guard = cf::lock_acquire "map_load:$path";
		1442
		1443	return if $self->in_memory != cf::MAP_SWAPPED;
		1444
		1445	$self->in_memory (cf::MAP_LOADING);
		1446
		1447	$self->alloc;
		1448
		1449	$self->pre_load;
		1450
		1451	$self->_load_objects ($self->{load_path}, 1)
		1452	or return;
		1453
		1454	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1455	if delete $self->{load_original};
		1456
		1457	if (my $uniq = $self->uniq_path) {
		1458	utf8::encode $uniq;
		1459	if (aio_open $uniq, O_RDONLY, 0) {
		1460	$self->clear_unique_items;
		1461	$self->_load_objects ($uniq, 0);
		1462	}
		1463	}
		1464
		1465	Coro::cede;
		1466
		1467	# now do the right thing for maps
		1468	$self->link_multipart_objects;
		1469
		1470	unless ($self->{deny_activate}) {
		1471	$self->decay_objects;
		1472	$self->fix_auto_apply;
		1473	$self->update_buttons;
		1474	Coro::cede;
		1475	$self->set_darkness_map;
		1476	$self->difficulty ($self->estimate_difficulty)
		1477	unless $self->difficulty;
		1478	Coro::cede;
		1479	$self->activate;
		1480	}
		1481
		1482	$self->post_load;
		1483
		1484	$self->in_memory (cf::MAP_IN_MEMORY);
		1485	}
		1486
		1487	sub customise_for {
		1488	my ($self, $ob) = @_;
		1489
		1490	return find "~" . $ob->name . "/" . $self->{path}
		1491	if $self->per_player;
		1492
		1493	$self
		1494	}
		1495
		1496	# find and load all maps in the 3x3 area around a map
		1497	sub load_diag {
457	my ($msg) = @_;	1498	my ($map) = @_;
458		1499
459	$msg->("reloading...");	1500	my @diag; # diagonal neighbours
460		1501
461	eval {	1502	for (0 .. 3) {
462	# 1. cancel all watchers	1503	my $neigh = $map->tile_path ($_)
463	$_->cancel for Event::all_watchers;	1504	or next;
		1505	$neigh = find $neigh, $map
		1506	or next;
		1507	$neigh->load;
464		1508
465	# 2. unload all extensions	1509	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
466	for (@exts) {	1510	[$neigh->tile_path (($_ + 1) % 4), $neigh];
467	$msg->("unloading <$_>");	1511	}
468	unload_extension $_;
469	}
470		1512
471	# 3. unload all modules loaded from $LIBDIR	1513	for (@diag) {
472	while (my ($k, $v) = each %INC) {	1514	my $neigh = find @$_
473	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1515	or next;
		1516	$neigh->load;
		1517	}
		1518	}
474		1519
475	$msg->("removing <$k>");	1520	sub find_sync {
476	delete $INC{$k};	1521	my ($path, $origin) = @_;
477		1522
478	$k =~ s/\.pm$//;	1523	cf::sync_job { find $path, $origin }
479	$k =~ s/\//::/g;	1524	}
480		1525
481	if (my $cb = $k->can ("unload_module")) {	1526	sub do_load_sync {
482	$cb->();	1527	my ($map) = @_;
		1528
		1529	cf::sync_job { $map->load };
		1530	}
		1531
		1532	our %MAP_PREFETCH;
		1533	our $MAP_PREFETCHER = undef;
		1534
		1535	sub find_async {
		1536	my ($path, $origin) = @_;
		1537
		1538	$path = normalise $path, $origin && $origin->{path};
		1539
		1540	if (my $map = $cf::MAP{$path}) {
		1541	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1542	}
		1543
		1544	undef $MAP_PREFETCH{$path};
		1545	$MAP_PREFETCHER ||= cf::async {
		1546	while (%MAP_PREFETCH) {
		1547	for my $path (keys %MAP_PREFETCH) {
		1548	my $map = find $path
		1549	or next;
		1550	$map->load;
		1551
		1552	delete $MAP_PREFETCH{$path};
483	}	1553	}
484
485	Symbol::delete_package $k;
486	}
487
488	# 4. get rid of safe::, as good as possible
489	Symbol::delete_package "safe::$_"
490	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
491
492	# 5. remove register_script_function callbacks
493	# TODO
494		1554	}
495	# 6. unload cf.pm "a bit"	1555	undef $MAP_PREFETCHER;
496	delete $INC{"cf.pm"};
497
498	# don't, removes xs symbols, too,
499	# and global variables created in xs
500	#Symbol::delete_package __PACKAGE__;
501
502	# 7. reload cf.pm
503	$msg->("reloading cf.pm");
504	require cf;
505	};	1556	};
506	$msg->($@) if $@;	1557	$MAP_PREFETCHER->prio (6);
507		1558
508	$msg->("reloaded");	1559	()
509	};	1560	}
510		1561
511	sub perl_reload() {	1562	sub save {
512	_perl_reload {	1563	my ($self) = @_;
513	warn $_[0];	1564
514	print "$_[0]\n";	1565	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1566
		1567	$self->{last_save} = $cf::RUNTIME;
		1568
		1569	return unless $self->dirty;
		1570
		1571	my $save = $self->save_path; utf8::encode $save;
		1572	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1573
		1574	$self->{load_path} = $save;
		1575
		1576	return if $self->{deny_save};
		1577
		1578	local $self->{last_access} = $self->last_access;#d#
		1579
		1580	cf::async {
		1581	$_->contr->save for $self->players;
515	};	1582	};
516	}
517		1583
518	register_command "perl-reload", 0, sub {	1584	if ($uniq) {
519	my ($who, $arg) = @_;	1585	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
520		1586	$self->_save_objects ($uniq, cf::IO_UNIQUES);
521	if ($who->flag (FLAG_WIZ)) {
522	_perl_reload {
523	warn $_[0];
524	$who->message ($_[0]);
525	};
526	}
527	};
528
529	#############################################################################
530	# extcmd framework, basically convert ext <msg>
531	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
532
533	attach_to_players
534	on_extcmd => sub {
535	my ($pl, $buf) = @_;
536
537	my $msg = eval { from_json $buf };
538
539	if (ref $msg) {
540	if (my $cb = $extcmd{$msg->{msgtype}}) {
541	if (my %reply = $cb->[0]->($pl, $msg)) {
542	$pl->ext_reply ($msg->{msgid}, %reply);
543	}
544	}
545	} else {
546	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
547	}
548
549	cf::override;
550	},
551	;
552
553	#############################################################################
554	# load/save/clean perl data associated with a map
555
556	*cf::mapsupport::on_clean = sub {
557	my ($map) = @_;
558
559	my $path = $map->tmpname;
560	defined $path or return;
561
562	unlink "$path.cfperl";
563	};
564
565	*cf::mapsupport::on_swapin =
566	*cf::mapsupport::on_load = sub {
567	my ($map) = @_;
568
569	my $path = $map->tmpname;
570	$path = $map->path unless defined $path;
571
572	open my $fh, "<:raw", "$path.cfperl"
573	or return; # no perl data
574
575	my $data = Storable::thaw do { local $/; <$fh> };
576
577	$data->{version} <= 1
578	or return; # too new
579
580	$map->_set_obs ($data->{obs});
581	};
582
583	*cf::mapsupport::on_swapout = sub {
584	my ($map) = @_;
585
586	my $path = $map->tmpname;
587	$path = $map->path unless defined $path;
588
589	my $obs = $map->_get_obs;
590
591	if (defined $obs) {
592	open my $fh, ">:raw", "$path.cfperl"
593	or die "$path.cfperl: $!";
594
595	stat $path;
596
597	print $fh Storable::nfreeze {
598	size => (stat _)[7],
599	time => (stat _)[9],
600	version => 1,
601	obs => $obs,
602	};
603
604	chmod SAVE_MODE, "$path.cfperl"; # very racy, but cf-compatible *g*
605	} else {	1587	} else {
606	unlink "$path.cfperl";	1588	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
607	}
608	};
609
610	attach_to_maps prio => -10000, package => cf::mapsupport::;
611
612	#############################################################################
613	# load/save perl data associated with player->ob objects
614
615	sub all_objects(@) {
616	@_, map all_objects ($_->inv), @_
617	}
618
619	attach_to_players
620	on_load => sub {
621	my ($pl, $path) = @_;
622
623	for my $o (all_objects $pl->ob) {
624	if (my $value = $o->get_ob_key_value ("_perl_data")) {
625	$o->set_ob_key_value ("_perl_data");
626
627	%$o = %{ Storable::thaw pack "H*", $value };
628	}
629	}
630	},	1589	}
631	on_save => sub {	1590	}
632	my ($pl, $path) = @_;
633		1591
634	$_->set_ob_key_value (_perl_data => unpack "H*", Storable::nfreeze $_)	1592	sub swap_out {
635	for grep %$_, all_objects $pl->ob;	1593	my ($self) = @_;
		1594
		1595	# save first because save cedes
		1596	$self->save;
		1597
		1598	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1599
		1600	return if $self->players;
		1601	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1602	return if $self->{deny_save};
		1603
		1604	$self->clear;
		1605	$self->in_memory (cf::MAP_SWAPPED);
		1606	}
		1607
		1608	sub reset_at {
		1609	my ($self) = @_;
		1610
		1611	# TODO: safety, remove and allow resettable per-player maps
		1612	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1613	return 1e99 if $self->{deny_reset};
		1614
		1615	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1616	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1617
		1618	$time + $to
		1619	}
		1620
		1621	sub should_reset {
		1622	my ($self) = @_;
		1623
		1624	$self->reset_at <= $cf::RUNTIME
		1625	}
		1626
		1627	sub reset {
		1628	my ($self) = @_;
		1629
		1630	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1631
		1632	return if $self->players;
		1633	return if $self->isa ("ext::map_per_player");#d#
		1634
		1635	warn "resetting map ", $self->path;#d#
		1636
		1637	$self->in_memory (cf::MAP_SWAPPED);
		1638
		1639	# need to save uniques path
		1640	unless ($self->{deny_save}) {
		1641	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1642
		1643	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1644	if $uniq;
636	},	1645	}
637	;
638		1646
639	#############################################################################	1647	delete $cf::MAP{$self->path};
640	# core extensions - in perl
641		1648
642	=item cf::player::exists $login	1649	$self->clear;
643		1650
644	Returns true when the given account exists.	1651	$_->clear_links_to ($self) for values %cf::MAP;
645		1652
646	=cut	1653	$self->unlink_save;
647		1654	$self->destroy;
648	sub cf::player::exists($) {
649	cf::player::find $_[0]
650	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
651	}	1655	}
652		1656
		1657	my $nuke_counter = "aaaa";
		1658
		1659	sub nuke {
		1660	my ($self) = @_;
		1661
		1662	delete $cf::MAP{$self->path};
		1663
		1664	$self->unlink_save;
		1665
		1666	bless $self, "cf::map";
		1667	delete $self->{deny_reset};
		1668	$self->{deny_save} = 1;
		1669	$self->reset_timeout (1);
		1670	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1671
		1672	$cf::MAP{$self->path} = $self;
		1673
		1674	$self->reset; # polite request, might not happen
		1675	}
		1676
		1677	=item cf::map::unique_maps
		1678
		1679	Returns an arrayref of paths of all shared maps that have
		1680	instantiated unique items. May block.
		1681
		1682	=cut
		1683
		1684	sub unique_maps() {
		1685	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1686	or return;
		1687
		1688	my @paths;
		1689
		1690	for (@$files) {
		1691	utf8::decode $_;
		1692	next if /\.pst$/;
		1693	next unless /^$PATH_SEP/o;
		1694
		1695	push @paths, cf::map::normalise $_;
		1696	}
		1697
		1698	\@paths
		1699	}
		1700
		1701	package cf;
		1702
		1703	=back
		1704
		1705	=head3 cf::object
		1706
		1707	=cut
		1708
		1709	package cf::object;
		1710
		1711	=over 4
		1712
		1713	=item $ob->inv_recursive
		1714
		1715	Returns the inventory of the object _and_ their inventories, recursively.
		1716
		1717	=cut
		1718
		1719	sub inv_recursive_;
		1720	sub inv_recursive_ {
		1721	map { $_, inv_recursive_ $_->inv } @_
		1722	}
		1723
		1724	sub inv_recursive {
		1725	inv_recursive_ inv $_[0]
		1726	}
		1727
		1728	package cf;
		1729
		1730	=back
		1731
		1732	=head3 cf::object::player
		1733
		1734	=over 4
		1735
653	=item $player->reply ($npc, $msg[, $flags])	1736	=item $player_object->reply ($npc, $msg[, $flags])
654		1737
655	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1738	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
656	can be C<undef>. Does the right thing when the player is currently in a	1739	can be C<undef>. Does the right thing when the player is currently in a
657	dialogue with the given NPC character.	1740	dialogue with the given NPC character.
658		1741
659	=cut	1742	=cut
660		1743
661	# rough implementation of a future "reply" method that works	1744	# rough implementation of a future "reply" method that works
662	# with dialog boxes.	1745	# with dialog boxes.
		1746	#TODO: the first argument must go, split into a $npc->reply_to ( method
663	sub cf::object::player::reply($$$;$) {	1747	sub cf::object::player::reply($$$;$) {
664	my ($self, $npc, $msg, $flags) = @_;	1748	my ($self, $npc, $msg, $flags) = @_;
665		1749
666	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1750	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
667		1751
…		…
671	$msg = $npc->name . " says: $msg" if $npc;	1755	$msg = $npc->name . " says: $msg" if $npc;
672	$self->message ($msg, $flags);	1756	$self->message ($msg, $flags);
673	}	1757	}
674	}	1758	}
675		1759
676	=item $player->ext_reply ($msgid, $msgtype, %msg)	1760	=item $player_object->may ("access")
677		1761
678	Sends an ext reply to the player.	1762	Returns wether the given player is authorized to access resource "access"
		1763	(e.g. "command_wizcast").
679		1764
680	=cut	1765	=cut
681		1766
682	sub cf::player::ext_reply($$$%) {	1767	sub cf::object::player::may {
		1768	my ($self, $access) = @_;
		1769
		1770	$self->flag (cf::FLAG_WIZ) ||
		1771	(ref $cf::CFG{"may_$access"}
		1772	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
		1773	: $cf::CFG{"may_$access"})
		1774	}
		1775
		1776	=item $player_object->enter_link
		1777
		1778	Freezes the player and moves him/her to a special map (C<{link}>).
		1779
		1780	The player should be reasonably safe there for short amounts of time. You
		1781	I<MUST> call C<leave_link> as soon as possible, though.
		1782
		1783	Will never block.
		1784
		1785	=item $player_object->leave_link ($map, $x, $y)
		1786
		1787	Moves the player out of the special C<{link}> map onto the specified
		1788	map. If the map is not valid (or omitted), the player will be moved back
		1789	to the location he/she was before the call to C<enter_link>, or, if that
		1790	fails, to the emergency map position.
		1791
		1792	Might block.
		1793
		1794	=cut
		1795
		1796	sub link_map {
		1797	unless ($LINK_MAP) {
		1798	$LINK_MAP = cf::map::find "{link}"
		1799	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1800	$LINK_MAP->load;
		1801	}
		1802
		1803	$LINK_MAP
		1804	}
		1805
		1806	sub cf::object::player::enter_link {
		1807	my ($self) = @_;
		1808
		1809	$self->deactivate_recursive;
		1810
		1811	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1812
		1813	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1814	if $self->map;
		1815
		1816	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1817	}
		1818
		1819	sub cf::object::player::leave_link {
		1820	my ($self, $map, $x, $y) = @_;
		1821
		1822	my $link_pos = delete $self->{_link_pos};
		1823
		1824	unless ($map) {
		1825	# restore original map position
		1826	($map, $x, $y) = @{ $link_pos || [] };
		1827	$map = cf::map::find $map;
		1828
		1829	unless ($map) {
		1830	($map, $x, $y) = @$EMERGENCY_POSITION;
		1831	$map = cf::map::find $map
		1832	or die "FATAL: cannot load emergency map\n";
		1833	}
		1834	}
		1835
		1836	($x, $y) = (-1, -1)
		1837	unless (defined $x) && (defined $y);
		1838
		1839	# use -1 or undef as default coordinates, not 0, 0
		1840	($x, $y) = ($map->enter_x, $map->enter_y)
		1841	if $x <=0 && $y <= 0;
		1842
		1843	$map->load;
		1844	$map->load_diag;
		1845
		1846	return unless $self->contr->active;
		1847	$self->activate_recursive;
		1848
		1849	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		1850	$self->enter_map ($map, $x, $y);
		1851	}
		1852
		1853	cf::player->attach (
		1854	on_logout => sub {
		1855	my ($pl) = @_;
		1856
		1857	# abort map switching before logout
		1858	if ($pl->ob->{_link_pos}) {
		1859	cf::sync_job {
		1860	$pl->ob->leave_link
		1861	};
		1862	}
		1863	},
		1864	on_login => sub {
		1865	my ($pl) = @_;
		1866
		1867	# try to abort aborted map switching on player login :)
		1868	# should happen only on crashes
		1869	if ($pl->ob->{_link_pos}) {
		1870	$pl->ob->enter_link;
		1871	(async {
		1872	$pl->ob->reply (undef,
		1873	"There was an internal problem at your last logout, "
		1874	. "the server will try to bring you to your intended destination in a second.",
		1875	cf::NDI_RED);
		1876	# we need this sleep as the login has a concurrent enter_exit running
		1877	# and this sleep increases chances of the player not ending up in scorn
		1878	Coro::Timer::sleep 1;
		1879	$pl->ob->leave_link;
		1880	})->prio (2);
		1881	}
		1882	},
		1883	);
		1884
		1885	=item $player_object->goto ($path, $x, $y)
		1886
		1887	=cut
		1888
		1889	sub cf::object::player::goto {
		1890	my ($self, $path, $x, $y) = @_;
		1891
		1892	$self->enter_link;
		1893
		1894	(async {
		1895	my $map = eval {
		1896	my $map = cf::map::find $path;
		1897	$map = $map->customise_for ($self) if $map;
		1898	$map
		1899	} or
		1900	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1901
		1902	$self->leave_link ($map, $x, $y);
		1903	})->prio (1);
		1904	}
		1905
		1906	=item $player_object->enter_exit ($exit_object)
		1907
		1908	=cut
		1909
		1910	sub parse_random_map_params {
		1911	my ($spec) = @_;
		1912
		1913	my $rmp = { # defaults
		1914	xsize => (cf::rndm 15, 40),
		1915	ysize => (cf::rndm 15, 40),
		1916	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1917	#layout => string,
		1918	};
		1919
		1920	for (split /\n/, $spec) {
		1921	my ($k, $v) = split /\s+/, $_, 2;
		1922
		1923	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1924	}
		1925
		1926	$rmp
		1927	}
		1928
		1929	sub prepare_random_map {
		1930	my ($exit) = @_;
		1931
		1932	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1933
		1934	# all this does is basically replace the /! path by
		1935	# a new random map path (?random/...) with a seed
		1936	# that depends on the exit object
		1937
		1938	my $rmp = parse_random_map_params $exit->msg;
		1939
		1940	if ($exit->map) {
		1941	$rmp->{region} = $exit->region->name;
		1942	$rmp->{origin_map} = $exit->map->path;
		1943	$rmp->{origin_x} = $exit->x;
		1944	$rmp->{origin_y} = $exit->y;
		1945	}
		1946
		1947	$rmp->{random_seed} ||= $exit->random_seed;
		1948
		1949	my $data = cf::to_json $rmp;
		1950	my $md5 = Digest::MD5::md5_hex $data;
		1951	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1952
		1953	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1954	aio_write $fh, 0, (length $data), $data, 0;
		1955	undef $fh;
		1956	aio_rename "$meta~", $meta;
		1957
		1958	$exit->slaying ("?random/$md5");
		1959	$exit->msg (undef);
		1960	}
		1961	}
		1962
		1963	sub cf::object::player::enter_exit {
		1964	my ($self, $exit) = @_;
		1965
		1966	return unless $self->type == cf::PLAYER;
		1967
		1968	if ($exit->slaying eq "/!") {
		1969	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1970	# the problem is that $exit might not survive long enough
		1971	# so it needs to be done right now, right here
		1972	cf::sync_job { prepare_random_map $exit };
		1973	}
		1974
		1975	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1976	my $hp = $exit->stats->hp;
		1977	my $sp = $exit->stats->sp;
		1978
		1979	$self->enter_link;
		1980
		1981	(async {
		1982	$self->deactivate_recursive; # just to be sure
		1983	unless (eval {
		1984	$self->goto ($slaying, $hp, $sp);
		1985
		1986	1;
		1987	}) {
		1988	$self->message ("Something went wrong deep within the crossfire server. "
		1989	. "I'll try to bring you back to the map you were before. "
		1990	. "Please report this to the dungeon master!",
		1991	cf::NDI_UNIQUE | cf::NDI_RED);
		1992
		1993	warn "ERROR in enter_exit: $@";
		1994	$self->leave_link;
		1995	}
		1996	})->prio (1);
		1997	}
		1998
		1999	=head3 cf::client
		2000
		2001	=over 4
		2002
		2003	=item $client->send_drawinfo ($text, $flags)
		2004
		2005	Sends a drawinfo packet to the client. Circumvents output buffering so
		2006	should not be used under normal circumstances.
		2007
		2008	=cut
		2009
		2010	sub cf::client::send_drawinfo {
		2011	my ($self, $text, $flags) = @_;
		2012
		2013	utf8::encode $text;
		2014	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
		2015	}
		2016
		2017	=item $client->ext_event ($type, %msg)
		2018
		2019	Sends an exti event to the client.
		2020
		2021	=cut
		2022
		2023	sub cf::client::ext_event($$%) {
683	my ($self, $id, %msg) = @_;	2024	my ($self, $type, %msg) = @_;
684		2025
685	$msg{msgid} = $id;	2026	$msg{msgtype} = "event_$type";
686
687	$self->send ("ext " . to_json \%msg);	2027	$self->send_packet ("ext " . cf::to_json \%msg);
688	}	2028	}
689		2029
690	#############################################################################	2030	=item $success = $client->query ($flags, "text", \&cb)
691	# map scripting support	2031
		2032	Queues a query to the client, calling the given callback with
		2033	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		2034	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		2035
		2036	Queries can fail, so check the return code. Or don't, as queries will become
		2037	reliable at some point in the future.
		2038
		2039	=cut
		2040
		2041	sub cf::client::query {
		2042	my ($self, $flags, $text, $cb) = @_;
		2043
		2044	return unless $self->state == ST_PLAYING
		2045	|| $self->state == ST_SETUP
		2046	|| $self->state == ST_CUSTOM;
		2047
		2048	$self->state (ST_CUSTOM);
		2049
		2050	utf8::encode $text;
		2051	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		2052
		2053	$self->send_packet ($self->{query_queue}[0][0])
		2054	if @{ $self->{query_queue} } == 1;
		2055	}
		2056
		2057	cf::client->attach (
		2058	on_reply => sub {
		2059	my ($ns, $msg) = @_;
		2060
		2061	# this weird shuffling is so that direct followup queries
		2062	# get handled first
		2063	my $queue = delete $ns->{query_queue}
		2064	or return; # be conservative, not sure how that can happen, but we saw a crash here
		2065
		2066	(shift @$queue)->[1]->($msg);
		2067	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
		2068
		2069	push @{ $ns->{query_queue} }, @$queue;
		2070
		2071	if (@{ $ns->{query_queue} } == @$queue) {
		2072	if (@$queue) {
		2073	$ns->send_packet ($ns->{query_queue}[0][0]);
		2074	} else {
		2075	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		2076	}
		2077	}
		2078	},
		2079	);
		2080
		2081	=item $client->async (\&cb)
		2082
		2083	Create a new coroutine, running the specified callback. The coroutine will
		2084	be automatically cancelled when the client gets destroyed (e.g. on logout,
		2085	or loss of connection).
		2086
		2087	=cut
		2088
		2089	sub cf::client::async {
		2090	my ($self, $cb) = @_;
		2091
		2092	my $coro = &Coro::async ($cb);
		2093
		2094	$coro->on_destroy (sub {
		2095	delete $self->{_coro}{$coro+0};
		2096	});
		2097
		2098	$self->{_coro}{$coro+0} = $coro;
		2099
		2100	$coro
		2101	}
		2102
		2103	cf::client->attach (
		2104	on_destroy => sub {
		2105	my ($ns) = @_;
		2106
		2107	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		2108	},
		2109	);
		2110
		2111	=back
		2112
		2113
		2114	=head2 SAFE SCRIPTING
		2115
		2116	Functions that provide a safe environment to compile and execute
		2117	snippets of perl code without them endangering the safety of the server
		2118	itself. Looping constructs, I/O operators and other built-in functionality
		2119	is not available in the safe scripting environment, and the number of
		2120	functions and methods that can be called is greatly reduced.
		2121
		2122	=cut
692		2123
693	our $safe = new Safe "safe";	2124	our $safe = new Safe "safe";
694	our $safe_hole = new Safe::Hole;	2125	our $safe_hole = new Safe::Hole;
695		2126
696	$SIG{FPE} = 'IGNORE';	2127	$SIG{FPE} = 'IGNORE';
697		2128
698	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2129	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
699		2130
700	# here we export the classes and methods available to script code	2131	# here we export the classes and methods available to script code
701		2132
		2133	=pod
		2134
		2135	The following functions and methods are available within a safe environment:
		2136
		2137	cf::object contr pay_amount pay_player map
		2138	cf::object::player player
		2139	cf::player peaceful
		2140	cf::map trigger
		2141
		2142	=cut
		2143
702	for (	2144	for (
703	["cf::object" => qw(contr pay_amount pay_player)],	2145	["cf::object" => qw(contr pay_amount pay_player map)],
704	["cf::object::player" => qw(player)],	2146	["cf::object::player" => qw(player)],
705	["cf::player" => qw(peaceful)],	2147	["cf::player" => qw(peaceful)],
		2148	["cf::map" => qw(trigger)],
706	) {	2149	) {
707	no strict 'refs';	2150	no strict 'refs';
708	my ($pkg, @funs) = @$_;	2151	my ($pkg, @funs) = @$_;
709	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	2152	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
710	for @funs;	2153	for @funs;
711	}	2154	}
		2155
		2156	=over 4
		2157
		2158	=item @retval = safe_eval $code, [var => value, ...]
		2159
		2160	Compiled and executes the given perl code snippet. additional var/value
		2161	pairs result in temporary local (my) scalar variables of the given name
		2162	that are available in the code snippet. Example:
		2163
		2164	my $five = safe_eval '$first + $second', first => 1, second => 4;
		2165
		2166	=cut
712		2167
713	sub safe_eval($;@) {	2168	sub safe_eval($;@) {
714	my ($code, %vars) = @_;	2169	my ($code, %vars) = @_;
715		2170
716	my $qcode = $code;	2171	my $qcode = $code;
…		…
739	}	2194	}
740		2195
741	wantarray ? @res : $res[0]	2196	wantarray ? @res : $res[0]
742	}	2197	}
743		2198
		2199	=item cf::register_script_function $function => $cb
		2200
		2201	Register a function that can be called from within map/npc scripts. The
		2202	function should be reasonably secure and should be put into a package name
		2203	like the extension.
		2204
		2205	Example: register a function that gets called whenever a map script calls
		2206	C<rent::overview>, as used by the C<rent> extension.
		2207
		2208	cf::register_script_function "rent::overview" => sub {
		2209	...
		2210	};
		2211
		2212	=cut
		2213
744	sub register_script_function {	2214	sub register_script_function {
745	my ($fun, $cb) = @_;	2215	my ($fun, $cb) = @_;
746		2216
747	no strict 'refs';	2217	no strict 'refs';
748	*{"safe::$fun"} = $safe_hole->wrap ($cb);	2218	*{"safe::$fun"} = $safe_hole->wrap ($cb);
749	}	2219	}
750		2220
		2221	=back
		2222
		2223	=cut
		2224
751	#############################################################################	2225	#############################################################################
752	# the server's main()	2226
		2227	=head2 EXTENSION DATABASE SUPPORT
		2228
		2229	Crossfire maintains a very simple database for extension use. It can
		2230	currently store anything that can be serialised using Storable, which
		2231	excludes objects.
		2232
		2233	The parameter C<$family> should best start with the name of the extension
		2234	using it, it should be unique.
		2235
		2236	=over 4
		2237
		2238	=item $value = cf::db_get $family => $key
		2239
		2240	Returns a single value from the database.
		2241
		2242	=item cf::db_put $family => $key => $value
		2243
		2244	Stores the given C<$value> in the family.
		2245
		2246	=cut
		2247
		2248	our $DB;
		2249
		2250	sub db_init {
		2251	unless ($DB) {
		2252	$DB = BDB::db_create $DB_ENV;
		2253
		2254	cf::sync_job {
		2255	eval {
		2256	$DB->set_flags (BDB::CHKSUM);
		2257
		2258	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2259	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2260	cf::cleanup "db_open(db): $!" if $!;
		2261	};
		2262	cf::cleanup "db_open(db): $@" if $@;
		2263	};
		2264
		2265	my $path = cf::localdir . "/database.pst";
		2266	if (stat $path) {
		2267	cf::sync_job {
		2268	my $pst = Storable::retrieve $path;
		2269
		2270	cf::db_put (board => data => $pst->{board});
		2271	cf::db_put (guildrules => data => $pst->{guildrules});
		2272	cf::db_put (rent => balance => $pst->{rent}{balance});
		2273	BDB::db_env_txn_checkpoint $DB_ENV;
		2274
		2275	unlink $path;
		2276	};
		2277	}
		2278	}
		2279	}
		2280
		2281	sub db_get($$) {
		2282	my $key = "$_[0]/$_[1]";
		2283
		2284	cf::sync_job {
		2285	BDB::db_get $DB, undef, $key, my $data;
		2286
		2287	$! ? ()
		2288	: Compress::LZF::sthaw $data
		2289	}
		2290	}
		2291
		2292	sub db_put($$$) {
		2293	BDB::dbreq_pri 4;
		2294	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
		2295	}
		2296
		2297	#############################################################################
		2298	# the server's init and main functions
		2299
		2300	sub load_facedata {
		2301	my $path = sprintf "%s/facedata", cf::datadir;
		2302
		2303	warn "loading facedata from $path\n";
		2304
		2305	my $faces;
		2306	0 < aio_load $path, $faces
		2307	or die "$path: $!";
		2308
		2309	Coro::cede;
		2310	$faces = Storable::thaw $faces;
		2311	Coro::cede;
		2312
		2313	my $meta = delete $faces->{""};
		2314	$meta->{version} == 1
		2315	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2316
		2317	while (my ($face, $info) = each %$faces) {
		2318	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2319	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2320	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2321	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2322	Coro::cede;
		2323	}
		2324
		2325	while (my ($face, $info) = each %$faces) {
		2326	next unless $info->{smooth};
		2327	my $idx = cf::face::find $face
		2328	or next;
		2329	if (my $smooth = cf::face::find $info->{smooth}) {
		2330	cf::face::set_smooth $idx, $smooth;
		2331	} else {
		2332	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2333	}
		2334	Coro::cede;
		2335	}
		2336
		2337	1
		2338	}
		2339
		2340	sub reload_resources {
		2341	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2342	or die "unable to load regions file\n";#d#
		2343	load_facedata
		2344	or die "unable to load facedata\n";#d#
		2345	}
		2346
		2347	sub init {
		2348	reload_resources;
		2349	}
		2350
		2351	sub cfg_load {
		2352	open my $fh, "<:utf8", cf::confdir . "/config"
		2353	or return;
		2354
		2355	local $/;
		2356	*CFG = YAML::Syck::Load <$fh>;
		2357
		2358	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2359
		2360	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2361	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2362
		2363	if (exists $CFG{mlockall}) {
		2364	eval {
		2365	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2366	and die "WARNING: m(un)lockall failed: $!\n";
		2367	};
		2368	warn $@ if $@;
		2369	}
		2370	}
753		2371
754	sub main {	2372	sub main {
		2373	# we must not ever block the main coroutine
		2374	local $Coro::idle = sub {
		2375	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2376	(async {
		2377	Event::one_event;
		2378	})->prio (Coro::PRIO_MAX);
		2379	};
		2380
		2381	cfg_load;
		2382	db_init;
		2383	load_extensions;
		2384
		2385	$TICK_WATCHER->start;
755	Event::loop;	2386	Event::loop;
756	}	2387	}
757		2388
758	#############################################################################	2389	#############################################################################
759	# initialisation	2390	# initialisation and cleanup
760		2391
761	register "<global>", __PACKAGE__;	2392	# install some emergency cleanup handlers
		2393	BEGIN {
		2394	for my $signal (qw(INT HUP TERM)) {
		2395	Event->signal (
		2396	reentrant => 0,
		2397	data => WF_AUTOCANCEL,
		2398	signal => $signal,
		2399	prio => 0,
		2400	cb => sub {
		2401	cf::cleanup "SIG$signal";
		2402	},
		2403	);
		2404	}
		2405	}
		2406
		2407	sub emergency_save() {
		2408	my $freeze_guard = cf::freeze_mainloop;
		2409
		2410	warn "enter emergency perl save\n";
		2411
		2412	cf::sync_job {
		2413	# use a peculiar iteration method to avoid tripping on perl
		2414	# refcount bugs in for. also avoids problems with players
		2415	# and maps saved/destroyed asynchronously.
		2416	warn "begin emergency player save\n";
		2417	for my $login (keys %cf::PLAYER) {
		2418	my $pl = $cf::PLAYER{$login} or next;
		2419	$pl->valid or next;
		2420	$pl->save;
		2421	}
		2422	warn "end emergency player save\n";
		2423
		2424	warn "begin emergency map save\n";
		2425	for my $path (keys %cf::MAP) {
		2426	my $map = $cf::MAP{$path} or next;
		2427	$map->valid or next;
		2428	$map->save;
		2429	}
		2430	warn "end emergency map save\n";
		2431
		2432	warn "begin emergency database checkpoint\n";
		2433	BDB::db_env_txn_checkpoint $DB_ENV;
		2434	warn "end emergency database checkpoint\n";
		2435	};
		2436
		2437	warn "leave emergency perl save\n";
		2438	}
		2439
		2440	sub post_cleanup {
		2441	my ($make_core) = @_;
		2442
		2443	warn Carp::longmess "post_cleanup backtrace"
		2444	if $make_core;
		2445	}
		2446
		2447	sub reload() {
		2448	# can/must only be called in main
		2449	if ($Coro::current != $Coro::main) {
		2450	warn "can only reload from main coroutine";
		2451	return;
		2452	}
		2453
		2454	warn "reloading...";
		2455
		2456	warn "entering sync_job";
		2457
		2458	cf::sync_job {
		2459	cf::write_runtime; # external watchdog should not bark
		2460	cf::emergency_save;
		2461	cf::write_runtime; # external watchdog should not bark
		2462
		2463	warn "syncing database to disk";
		2464	BDB::db_env_txn_checkpoint $DB_ENV;
		2465
		2466	# if anything goes wrong in here, we should simply crash as we already saved
		2467
		2468	warn "cancelling all WF_AUTOCANCEL watchers";
		2469	for (Event::all_watchers) {
		2470	$_->cancel if $_->data & WF_AUTOCANCEL;
		2471	}
		2472
		2473	warn "flushing outstanding aio requests";
		2474	for (;;) {
		2475	BDB::flush;
		2476	IO::AIO::flush;
		2477	Coro::cede;
		2478	last unless IO::AIO::nreqs || BDB::nreqs;
		2479	warn "iterate...";
		2480	}
		2481
		2482	++$RELOAD;
		2483
		2484	warn "cancelling all extension coros";
		2485	$_->cancel for values %EXT_CORO;
		2486	%EXT_CORO = ();
		2487
		2488	warn "removing commands";
		2489	%COMMAND = ();
		2490
		2491	warn "removing ext commands";
		2492	%EXTCMD = ();
		2493
		2494	warn "unloading/nuking all extensions";
		2495	for my $pkg (@EXTS) {
		2496	warn "... unloading $pkg";
		2497
		2498	if (my $cb = $pkg->can ("unload")) {
		2499	eval {
		2500	$cb->($pkg);
		2501	1
		2502	} or warn "$pkg unloaded, but with errors: $@";
		2503	}
		2504
		2505	warn "... nuking $pkg";
		2506	Symbol::delete_package $pkg;
		2507	}
		2508
		2509	warn "unloading all perl modules loaded from $LIBDIR";
		2510	while (my ($k, $v) = each %INC) {
		2511	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		2512
		2513	warn "... unloading $k";
		2514	delete $INC{$k};
		2515
		2516	$k =~ s/\.pm$//;
		2517	$k =~ s/\//::/g;
		2518
		2519	if (my $cb = $k->can ("unload_module")) {
		2520	$cb->();
		2521	}
		2522
		2523	Symbol::delete_package $k;
		2524	}
		2525
		2526	warn "getting rid of safe::, as good as possible";
		2527	Symbol::delete_package "safe::$_"
		2528	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
		2529
		2530	warn "unloading cf.pm \"a bit\"";
		2531	delete $INC{"cf.pm"};
		2532
		2533	# don't, removes xs symbols, too,
		2534	# and global variables created in xs
		2535	#Symbol::delete_package __PACKAGE__;
		2536
		2537	warn "unload completed, starting to reload now";
		2538
		2539	warn "reloading cf.pm";
		2540	require cf;
		2541	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
		2542
		2543	warn "loading config and database again";
		2544	cf::cfg_load;
		2545
		2546	warn "loading extensions";
		2547	cf::load_extensions;
		2548
		2549	warn "reattaching attachments to objects/players";
		2550	_global_reattach; # objects, sockets
		2551	warn "reattaching attachments to maps";
		2552	reattach $_ for values %MAP;
		2553	warn "reattaching attachments to players";
		2554	reattach $_ for values %PLAYER;
		2555
		2556	warn "loading reloadable resources";
		2557	reload_resources;
		2558
		2559	warn "leaving sync_job";
		2560
		2561	1
		2562	} or do {
		2563	warn $@;
		2564	warn "error while reloading, exiting.";
		2565	exit 1;
		2566	};
		2567
		2568	warn "reloaded";
		2569	};
		2570
		2571	our $RELOAD_WATCHER; # used only during reload
		2572
		2573	register_command "reload" => sub {
		2574	my ($who, $arg) = @_;
		2575
		2576	if ($who->flag (FLAG_WIZ)) {
		2577	$who->message ("reloading server.");
		2578
		2579	# doing reload synchronously and two reloads happen back-to-back,
		2580	# coro crashes during coro_state_free->destroy here.
		2581
		2582	$RELOAD_WATCHER ||= Event->timer (
		2583	reentrant => 0,
		2584	after => 0,
		2585	data => WF_AUTOCANCEL,
		2586	cb => sub {
		2587	reload;
		2588	undef $RELOAD_WATCHER;
		2589	},
		2590	);
		2591	}
		2592	};
762		2593
763	unshift @INC, $LIBDIR;	2594	unshift @INC, $LIBDIR;
764		2595
765	load_extensions;	2596	my $bug_warning = 0;
766		2597
767	$TICK_WATCHER = Event->timer (	2598	$TICK_WATCHER = Event->timer (
		2599	reentrant => 0,
		2600	parked => 1,
768	prio => 1,	2601	prio => 0,
769	at => $NEXT_TICK || 1,	2602	at => $NEXT_TICK || $TICK,
		2603	data => WF_AUTOCANCEL,
770	cb => sub {	2604	cb => sub {
		2605	if ($Coro::current != $Coro::main) {
		2606	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2607	unless ++$bug_warning > 10;
		2608	return;
		2609	}
		2610
		2611	$NOW = Event::time;
		2612
771	cf::server_tick; # one server iteration	2613	cf::server_tick; # one server iteration
772		2614	$RUNTIME += $TICK;
773	my $NOW = Event::time;
774	$NEXT_TICK += $TICK;	2615	$NEXT_TICK += $TICK;
775		2616
		2617	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2618	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2619	Coro::async_pool {
		2620	write_runtime
		2621	or warn "ERROR: unable to write runtime file: $!";
		2622	};
		2623	}
		2624
		2625	$WAIT_FOR_TICK->broadcast;
		2626	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2627
		2628	# my $AFTER = Event::time;
		2629	# warn $AFTER - $NOW;#d#
		2630
776	# if we are delayed by four ticks, skip them all	2631	# if we are delayed by four ticks or more, skip them all
777	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2632	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
778		2633
779	$TICK_WATCHER->at ($NEXT_TICK);	2634	$TICK_WATCHER->at ($NEXT_TICK);
780	$TICK_WATCHER->start;	2635	$TICK_WATCHER->start;
781	},	2636	},
782	);	2637	);
783		2638
		2639	{
		2640	BDB::max_poll_time $TICK * 0.1;
		2641	$BDB_POLL_WATCHER = Event->io (
		2642	reentrant => 0,
		2643	fd => BDB::poll_fileno,
		2644	poll => 'r',
		2645	prio => 0,
		2646	data => WF_AUTOCANCEL,
		2647	cb => \&BDB::poll_cb,
		2648	);
		2649	BDB::min_parallel 8;
		2650
		2651	BDB::set_sync_prepare {
		2652	my $status;
		2653	my $current = $Coro::current;
		2654	(
		2655	sub {
		2656	$status = $!;
		2657	$current->ready; undef $current;
		2658	},
		2659	sub {
		2660	Coro::schedule while defined $current;
		2661	$! = $status;
		2662	},
		2663	)
		2664	};
		2665
		2666	unless ($DB_ENV) {
		2667	$DB_ENV = BDB::db_env_create;
		2668
		2669	cf::sync_job {
		2670	eval {
		2671	BDB::db_env_open
		2672	$DB_ENV,
		2673	$BDB_ENV_DIR,
		2674	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2675	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2676	0666;
		2677
		2678	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2679
		2680	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2681	$DB_ENV->set_lk_detect;
		2682	};
		2683
		2684	cf::cleanup "db_env_open(db): $@" if $@;
		2685	};
		2686	}
		2687	}
		2688
		2689	{
		2690	IO::AIO::min_parallel 8;
		2691
		2692	undef $Coro::AIO::WATCHER;
		2693	IO::AIO::max_poll_time $TICK * 0.1;
		2694	$AIO_POLL_WATCHER = Event->io (
		2695	reentrant => 0,
		2696	data => WF_AUTOCANCEL,
		2697	fd => IO::AIO::poll_fileno,
		2698	poll => 'r',
		2699	prio => 6,
		2700	cb => \&IO::AIO::poll_cb,
		2701	);
		2702	}
		2703
		2704	END { cf::emergency_save }
		2705
784	1	2706	1
785		2707

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines