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 1.48 by root, Sun Aug 27 15:24:22 2006 UTC vs.
Revision 1.117 by root, Mon Jan 1 17:50:26 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 3.3;
		14	use Coro::Event;
		15	use Coro::Timer;
		16	use Coro::Signal;
		17	use Coro::Semaphore;
		18	use Coro::AIO;
		19
		20	use Digest::MD5;
		21	use Fcntl;
		22	use IO::AIO 2.31 ();
		23	use YAML::Syck ();
10	use Time::HiRes;	24	use Time::HiRes;
11	use Event;	25
12	$Event::Eval = 1; # no idea why this is required, but it is	26	use Event; $Event::Eval = 1; # no idea why this is required, but it is
13		27
14	use strict;	28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
		29	$YAML::Syck::ImplicitUnicode = 1;
15		30
16	_reload_1;	31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority
17		32
		33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		34
18	our %COMMAND = ();	35	our %COMMAND = ();
		36	our %COMMAND_TIME = ();
		37	our %EXTCMD = ();
		38
19	our @EVENT;	39	our @EVENT;
20	our %PROP_TYPE;	40	our $LIBDIR = datadir . "/ext";
21	our %PROP_IDX;
22	our $LIBDIR = maps_directory "perl";
23		41
24	our $TICK = MAX_TIME * 1e-6;	42	our $TICK = MAX_TIME * 1e-6;
25	our $TICK_WATCHER;	43	our $TICK_WATCHER;
26	our $NEXT_TICK;	44	our $NEXT_TICK;
		45	our $NOW;
		46
		47	our %CFG;
		48
		49	our $UPTIME; $UPTIME ||= time;
		50	our $RUNTIME;
		51
		52	our %MAP; # all maps
		53	our $LINK_MAP; # the special {link} map
		54	our $FREEZE;
		55	our $RANDOM_MAPS = cf::localdir . "/random";
		56	our %EXT_CORO;
		57
		58	binmode STDOUT;
		59	binmode STDERR;
		60
		61	# read virtual server time, if available
		62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		63	open my $fh, "<", cf::localdir . "/runtime"
		64	or die "unable to read runtime file: $!";
		65	$RUNTIME = <$fh> + 0.;
		66	}
		67
		68	mkdir cf::localdir;
		69	mkdir cf::localdir . "/" . cf::playerdir;
		70	mkdir cf::localdir . "/" . cf::tmpdir;
		71	mkdir cf::localdir . "/" . cf::uniquedir;
		72	mkdir $RANDOM_MAPS;
		73
		74	# a special map that is always available
		75	our $LINK_MAP;
		76
		77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		78
		79	#############################################################################
		80
		81	=head2 GLOBAL VARIABLES
		82
		83	=over 4
		84
		85	=item $cf::UPTIME
		86
		87	The timestamp of the server start (so not actually an uptime).
		88
		89	=item $cf::RUNTIME
		90
		91	The time this server has run, starts at 0 and is increased by $cf::TICK on
		92	every server tick.
		93
		94	=item $cf::LIBDIR
		95
		96	The perl library directory, where extensions and cf-specific modules can
		97	be found. It will be added to C<@INC> automatically.
		98
		99	=item $cf::NOW
		100
		101	The time of the last (current) server tick.
		102
		103	=item $cf::TICK
		104
		105	The interval between server ticks, in seconds.
		106
		107	=item %cf::CFG
		108
		109	Configuration for the server, loaded from C</etc/crossfire/config>, or
		110	from wherever your confdir points to.
		111
		112	=back
		113
		114	=cut
27		115
28	BEGIN {	116	BEGIN {
29	*CORE::GLOBAL::warn = sub {	117	*CORE::GLOBAL::warn = sub {
30	my $msg = join "", @_;	118	my $msg = join "", @_;
		119	utf8::encode $msg;
		120
31	$msg .= "\n"	121	$msg .= "\n"
32	unless $msg =~ /\n$/;	122	unless $msg =~ /\n$/;
33		123
34	print STDERR "cfperl: $msg";
35	LOG llevError, "cfperl: $msg";	124	LOG llevError, "cfperl: $msg";
36	};	125	};
37	}	126	}
38		127
39	my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply!	128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
40		129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
41	# generate property mutators	130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
42	sub prop_gen {	131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
43	my ($prefix, $class) = @_;	132	@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';	133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
74		134
75	# we bless all objects into (empty) derived classes to force a method lookup	135	# we bless all objects into (empty) derived classes to force a method lookup
76	# within the Safe compartment.	136	# within the Safe compartment.
77	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch)) {	137	for my $pkg (qw(
		138	cf::global cf::attachable
		139	cf::object cf::object::player
		140	cf::client cf::player
		141	cf::arch cf::living
		142	cf::map cf::party cf::region
		143	)) {
78	no strict 'refs';	144	no strict 'refs';
79	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
80	}	146	}
81		147
82	$Event::DIED = sub {	148	$Event::DIED = sub {
…		…
84	};	150	};
85		151
86	my %ext_pkg;	152	my %ext_pkg;
87	my @exts;	153	my @exts;
88	my @hook;	154	my @hook;
89	my %command;
90	my %extcmd;
91		155
92	#############################################################################	156	=head2 UTILITY FUNCTIONS
93	# utility functions	157
		158	=over 4
		159
		160	=cut
94		161
95	use JSON::Syck (); # TODO# replace by JSON::PC once working	162	use JSON::Syck (); # TODO# replace by JSON::PC once working
		163
		164	=item $ref = cf::from_json $json
		165
		166	Converts a JSON string into the corresponding perl data structure.
		167
		168	=cut
96		169
97	sub from_json($) {	170	sub from_json($) {
98	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs	171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
99	JSON::Syck::Load $_[0]	172	JSON::Syck::Load $_[0]
100	}	173	}
101		174
		175	=item $json = cf::to_json $ref
		176
		177	Converts a perl data structure into its JSON representation.
		178
		179	=cut
		180
102	sub to_json($) {	181	sub to_json($) {
103	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
104	JSON::Syck::Dump $_[0]	183	JSON::Syck::Dump $_[0]
105	}	184	}
106		185
		186	=item cf::sync_job { BLOCK }
		187
		188	The design of crossfire+ requires that the main coro ($Coro::main) is
		189	always able to handle events or runnable, as crossfire+ is only partly
		190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		191
		192	If it must be done, put the blocking parts into C<sync_job>. This will run
		193	the given BLOCK in another coroutine while waiting for the result. The
		194	server will be frozen during this time, so the block should either finish
		195	fast or be very important.
		196
		197	=cut
		198
		199	sub sync_job(&) {
		200	my ($job) = @_;
		201
		202	if ($Coro::current == $Coro::main) {
		203	# this is the main coro, too bad, we have to block
		204	# till the operation succeeds, freezing the server :/
		205
		206	# TODO: use suspend/resume instead
		207	# (but this is cancel-safe)
		208	local $FREEZE = 1;
		209
		210	my $busy = 1;
		211	my @res;
		212
		213	(Coro::async {
		214	@res = eval { $job->() };
		215	warn $@ if $@;
		216	undef $busy;
		217	})->prio (Coro::PRIO_MAX);
		218
		219	while ($busy) {
		220	Coro::cede_notself;
		221	Event::one_event unless Coro::nready;
		222	}
		223
		224	wantarray ? @res : $res[0]
		225	} else {
		226	# we are in another coroutine, how wonderful, everything just works
		227
		228	$job->()
		229	}
		230	}
		231
		232	=item $coro = cf::coro { BLOCK }
		233
		234	Creates and returns a new coro. This coro is automcatially being canceled
		235	when the extension calling this is being unloaded.
		236
		237	=cut
		238
		239	sub coro(&) {
		240	my $cb = shift;
		241
		242	my $coro; $coro = async {
		243	eval {
		244	$cb->();
		245	};
		246	warn $@ if $@;
		247	};
		248
		249	$coro->on_destroy (sub {
		250	delete $EXT_CORO{$coro+0};
		251	});
		252	$EXT_CORO{$coro+0} = $coro;
		253
		254	$coro
		255	}
		256
		257	sub write_runtime {
		258	my $runtime = cf::localdir . "/runtime";
		259
		260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		261	or return;
		262
		263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		265	and return;
		266
		267	aio_fsync $fh
		268	and return;
		269
		270	close $fh
		271	or return;
		272
		273	aio_rename "$runtime~", $runtime
		274	and return;
		275
		276	1
		277	}
		278
		279	=back
		280
		281	=cut
		282
107	#############################################################################	283	#############################################################################
108	# "new" plug-in system
109		284
		285	package cf::path;
		286
		287	sub new {
		288	my ($class, $path, $base) = @_;
		289
		290	$path = $path->as_string if ref $path;
		291
		292	my $self = bless { }, $class;
		293
		294	# {... are special paths that are not touched
		295	# ?xxx/... are special absolute paths
		296	# ?random/... random maps
		297	# /! non-realised random map exit
		298	# /... normal maps
		299	# ~/... per-player maps without a specific player (DO NOT USE)
		300	# ~user/... per-player map of a specific user
		301
		302	if ($path =~ /^{/) {
		303	# fine as it is
		304	} elsif ($path =~ s{^\?random/}{}) {
		305	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		306	$self->{random} = cf::from_json $data;
		307	} else {
		308	if ($path =~ s{^~([^/]+)?}{}) {
		309	$self->{user_rel} = 1;
		310
		311	if (defined $1) {
		312	$self->{user} = $1;
		313	} elsif ($base =~ m{^~([^/]+)/}) {
		314	$self->{user} = $1;
		315	} else {
		316	warn "cannot resolve user-relative path without user <$path,$base>\n";
		317	}
		318	} elsif ($path =~ /^\//) {
		319	# already absolute
		320	} else {
		321	$base =~ s{[^/]+/?$}{};
		322	return $class->new ("$base/$path");
		323	}
		324
		325	for ($path) {
		326	redo if s{/\.?/}{/};
		327	redo if s{/[^/]+/\.\./}{/};
		328	}
		329	}
		330
		331	$self->{path} = $path;
		332
		333	$self
		334	}
		335
		336	# the name / primary key / in-game path
		337	sub as_string {
		338	my ($self) = @_;
		339
		340	$self->{user_rel} ? "~$self->{user}$self->{path}"
		341	: $self->{random} ? "?random/$self->{path}"
		342	: $self->{path}
		343	}
		344
		345	# the displayed name, this is a one way mapping
		346	sub visible_name {
		347	my ($self) = @_;
		348
		349	# if (my $rmp = $self->{random}) {
		350	# # todo: be more intelligent about this
		351	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		352	# } else {
		353	$self->as_string
		354	# }
		355	}
		356
		357	# escape the /'s in the path
		358	sub _escaped_path {
		359	# ∕ is U+2215
		360	(my $path = $_[0]{path}) =~ s/\//∕/g;
		361	$path
		362	}
		363
		364	# the original (read-only) location
		365	sub load_path {
		366	my ($self) = @_;
		367
		368	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		369	}
		370
		371	# the temporary/swap location
		372	sub save_path {
		373	my ($self) = @_;
		374
		375	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		376	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		377	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		378	}
		379
		380	# the unique path, might be eq to save_path
		381	sub uniq_path {
		382	my ($self) = @_;
		383
		384	$self->{user_rel} || $self->{random}
		385	? undef
		386	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		387	}
		388
		389	# return random map parameters, or undef
		390	sub random_map_params {
		391	my ($self) = @_;
		392
		393	$self->{random}
		394	}
		395
		396	# this is somewhat ugly, but style maps do need special treatment
		397	sub is_style_map {
		398	$_[0]{path} =~ m{^/styles/}
		399	}
		400
		401	package cf;
		402
		403	#############################################################################
		404
		405	=head2 ATTACHABLE OBJECTS
		406
		407	Many objects in crossfire are so-called attachable objects. That means you can
		408	attach callbacks/event handlers (a collection of which is called an "attachment")
		409	to it. All such attachable objects support the following methods.
		410
		411	In the following description, CLASS can be any of C<global>, C<object>
		412	C<player>, C<client> or C<map> (i.e. the attachable objects in
		413	crossfire+).
		414
		415	=over 4
		416
110	=item $object->attach ($attachment, key => $value...)	417	=item $attachable->attach ($attachment, key => $value...)
111		418
112	Attach a pre-registered attachment to an object.	419	=item $attachable->detach ($attachment)
113		420
114	=item $player->attach ($attachment, key => $value...)	421	Attach/detach a pre-registered attachment to a specific object and give it
		422	the specified key/value pairs as arguments.
115		423
116	Attach a pre-registered attachment to a player.	424	Example, attach a minesweeper attachment to the given object, making it a
		425	10x10 minesweeper game:
117		426
118	=item $map->attach ($attachment, key => $value...) # not yet persistent	427	$obj->attach (minesweeper => width => 10, height => 10);
119		428
120	Attach a pre-registered attachment to a map.	429	=item $bool = $attachable->attached ($name)
121		430
122	=item cf::attach_global ...	431	Checks wether the named attachment is currently attached to the object.
123		432
124	Attach handlers for global events.	433	=item cf::CLASS->attach ...
125		434
126	This and all following C<attach_*>-functions expect any number of the	435	=item cf::CLASS->detach ...
127	following handler/hook descriptions:	436
		437	Define an anonymous attachment and attach it to all objects of the given
		438	CLASS. See the next function for an explanation of its arguments.
		439
		440	You can attach to global events by using the C<cf::global> class.
		441
		442	Example, log all player logins:
		443
		444	cf::player->attach (
		445	on_login => sub {
		446	my ($pl) = @_;
		447	...
		448	},
		449	);
		450
		451	Example, attach to the jeweler skill:
		452
		453	cf::object->attach (
		454	type => cf::SKILL,
		455	subtype => cf::SK_JEWELER,
		456	on_use_skill => sub {
		457	my ($sk, $ob, $part, $dir, $msg) = @_;
		458	...
		459	},
		460	);
		461
		462	=item cf::CLASS::attachment $name, ...
		463
		464	Register an attachment by C<$name> through which attachable objects of the
		465	given CLASS can refer to this attachment.
		466
		467	Some classes such as crossfire maps and objects can specify attachments
		468	that are attached at load/instantiate time, thus the need for a name.
		469
		470	These calls expect any number of the following handler/hook descriptions:
128		471
129	=over 4	472	=over 4
130		473
131	=item prio => $number	474	=item prio => $number
132		475
…		…
134	by another C<prio> setting). Lower priority handlers get executed	477	by another C<prio> setting). Lower priority handlers get executed
135	earlier. The default priority is C<0>, and many built-in handlers are	478	earlier. The default priority is C<0>, and many built-in handlers are
136	registered at priority C<-1000>, so lower priorities should not be used	479	registered at priority C<-1000>, so lower priorities should not be used
137	unless you know what you are doing.	480	unless you know what you are doing.
138		481
		482	=item type => $type
		483
		484	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		485	given type of objects only (the additional parameter C<subtype> can be
		486	used to further limit to the given subtype).
		487
139	=item on_I<event> => \&cb	488	=item on_I<event> => \&cb
140		489
141	Call the given code reference whenever the named event happens (event is	490	Call the given code reference whenever the named event happens (event is
142	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	491	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
143	handlers are recognised generally depends on the type of object these	492	handlers are recognised generally depends on the type of object these
…		…
152	package and register them. Only handlers for eevents supported by the	501	package and register them. Only handlers for eevents supported by the
153	object/class are recognised.	502	object/class are recognised.
154		503
155	=back	504	=back
156		505
157	=item cf::attach_to_type $object_type, $subtype, ...	506	Example, define an attachment called "sockpuppet" that calls the given
		507	event handler when a monster attacks:
158		508
159	Attach handlers for a specific object type (e.g. TRANSPORT) and	509	cf::object::attachment sockpuppet =>
160	subtype. If C<$subtype> is zero or undef, matches all objects of the given	510	on_skill_attack => sub {
161	type.	511	my ($self, $victim) = @_;
		512	...
		513	}
		514	}
162		515
163	=item cf::attach_to_objects ...	516	=item $attachable->valid
164		517
165	Attach handlers to all objects. Do not use this except for debugging or	518	Just because you have a perl object does not mean that the corresponding
166	very rare events, as handlers are (obviously) called for I<all> objects in	519	C-level object still exists. If you try to access an object that has no
167	the game.	520	valid C counterpart anymore you get an exception at runtime. This method
168		521	can be used to test for existence of the C object part without causing an
169	=item cf::attach_to_players ...	522	exception.
170
171	Attach handlers to all players.
172
173	=item cf::attach_to_maps ...
174
175	Attach handlers to all maps.
176
177	=item cf:register_attachment $name, ...
178		523
179	=cut	524	=cut
180		525
181	# the following variables are defined in .xs and must not be re-created	526	# the following variables are defined in .xs and must not be re-created
182	our @CB_GLOBAL = (); # registry for all global events	527	our @CB_GLOBAL = (); # registry for all global events
		528	our @CB_ATTACHABLE = (); # registry for all attachables
183	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	529	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
184	our @CB_PLAYER = ();	530	our @CB_PLAYER = ();
		531	our @CB_CLIENT = ();
185	our @CB_TYPE = (); # registry for type (cf-object class) based events	532	our @CB_TYPE = (); # registry for type (cf-object class) based events
186	our @CB_MAP = ();	533	our @CB_MAP = ();
187		534
188	my %attachment;	535	my %attachment;
189		536
190	sub _attach_cb($\%$$$) {	537	sub _attach_cb($$$$) {
191	my ($registry, $undo, $event, $prio, $cb) = @_;	538	my ($registry, $event, $prio, $cb) = @_;
192		539
193	use sort 'stable';	540	use sort 'stable';
194		541
195	$cb = [$prio, $cb];	542	$cb = [$prio, $cb];
196		543
197	@{$registry->[$event]} = sort	544	@{$registry->[$event]} = sort
198	{ $a->[0] cmp $b->[0] }	545	{ $a->[0] cmp $b->[0] }
199	@{$registry->[$event] || []}, $cb;	546	@{$registry->[$event] || []}, $cb;
200
201	push @{$undo->{cb}}, [$event, $cb];
202	}	547	}
		548
		549	# hack
		550	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
203		551
204	# attach handles attaching event callbacks	552	# attach handles attaching event callbacks
205	# the only thing the caller has to do is pass the correct	553	# the only thing the caller has to do is pass the correct
206	# registry (== where the callback attaches to).	554	# registry (== where the callback attaches to).
207	sub _attach(\@$@) {	555	sub _attach {
208	my ($registry, $klass, @arg) = @_;	556	my ($registry, $klass, @arg) = @_;
209		557
		558	my $object_type;
210	my $prio = 0;	559	my $prio = 0;
211
212	my %undo = (
213	registry => $registry,
214	cb => [],
215	);
216
217	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	560	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		561
		562	#TODO: get rid of this hack
		563	if ($attachable_klass{$klass}) {
		564	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		565	}
218		566
219	while (@arg) {	567	while (@arg) {
220	my $type = shift @arg;	568	my $type = shift @arg;
221		569
222	if ($type eq "prio") {	570	if ($type eq "prio") {
223	$prio = shift @arg;	571	$prio = shift @arg;
224		572
		573	} elsif ($type eq "type") {
		574	$object_type = shift @arg;
		575	$registry = $CB_TYPE[$object_type] ||= [];
		576
		577	} elsif ($type eq "subtype") {
		578	defined $object_type or Carp::croak "subtype specified without type";
		579	my $object_subtype = shift @arg;
		580	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		581
225	} elsif ($type eq "package") {	582	} elsif ($type eq "package") {
226	my $pkg = shift @arg;	583	my $pkg = shift @arg;
227		584
228	while (my ($name, $id) = each %cb_id) {	585	while (my ($name, $id) = each %cb_id) {
229	if (my $cb = $pkg->can ($name)) {	586	if (my $cb = $pkg->can ($name)) {
230	_attach_cb $registry, %undo, $id, $prio, $cb;	587	_attach_cb $registry, $id, $prio, $cb;
231	}	588	}
232	}	589	}
233		590
234	} elsif (exists $cb_id{$type}) {	591	} elsif (exists $cb_id{$type}) {
235	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;	592	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
236		593
237	} elsif (ref $type) {	594	} elsif (ref $type) {
238	warn "attaching objects not supported, ignoring.\n";	595	warn "attaching objects not supported, ignoring.\n";
239		596
240	} else {	597	} else {
241	shift @arg;	598	shift @arg;
242	warn "attach argument '$type' not supported, ignoring.\n";	599	warn "attach argument '$type' not supported, ignoring.\n";
243	}	600	}
244	}	601	}
245
246	\%undo
247	}	602	}
248		603
249	sub _attach_attachment {	604	sub _object_attach {
250	my ($obj, $name, %arg) = @_;	605	my ($obj, $name, %arg) = @_;
251		606
252	my $res;	607	return if exists $obj->{_attachment}{$name};
253		608
254	if (my $attach = $attachment{$name}) {	609	if (my $attach = $attachment{$name}) {
255	my $registry = $obj->registry;	610	my $registry = $obj->registry;
256		611
257	for (@$attach) {	612	for (@$attach) {
258	my ($klass, @attach) = @$_;	613	my ($klass, @attach) = @$_;
259	$res = _attach @$registry, $klass, @attach;	614	_attach $registry, $klass, @attach;
260	}	615	}
261		616
262	$obj->{$name} = \%arg;	617	$obj->{$name} = \%arg;
263	} else {	618	} else {
264	warn "object uses attachment '$name' that is not available, postponing.\n";	619	warn "object uses attachment '$name' that is not available, postponing.\n";
265	}	620	}
266		621
267	push @{$obj->{_attachment}}, $name;	622	$obj->{_attachment}{$name} = undef;
268
269	$res->{attachment} = $name;
270	$res
271	}	623	}
272		624
273	sub cf::object::attach {	625	sub cf::attachable::attach {
		626	if (ref $_[0]) {
		627	_object_attach @_;
		628	} else {
		629	_attach shift->_attach_registry, @_;
		630	}
		631	};
		632
		633	# all those should be optimised
		634	sub cf::attachable::detach {
274	my ($obj, $name, %arg) = @_;	635	my ($obj, $name) = @_;
275		636
276	_attach_attachment $obj, $name, %arg;	637	if (ref $obj) {
277	}	638	delete $obj->{_attachment}{$name};
		639	reattach ($obj);
		640	} else {
		641	Carp::croak "cannot, currently, detach class attachments";
		642	}
		643	};
278		644
279	sub cf::player::attach {	645	sub cf::attachable::attached {
280	my ($obj, $name, %arg) = @_;	646	my ($obj, $name) = @_;
281		647
282	_attach_attachment KLASS_PLAYER, $obj, $name, %arg;	648	exists $obj->{_attachment}{$name}
283	}	649	}
284		650
285	sub cf::map::attach {	651	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
286	my ($obj, $name, %arg) = @_;	652	eval "#line " . __LINE__ . " 'cf.pm'
		653	sub cf::\L$klass\E::_attach_registry {
		654	(\\\@CB_$klass, KLASS_$klass)
		655	}
287		656
288	_attach_attachment KLASS_MAP, $obj, $name, %arg;	657	sub cf::\L$klass\E::attachment {
289	}
290
291	sub attach_global {
292	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
293	}
294
295	sub attach_to_type {
296	my $type = shift;
297	my $subtype = shift;
298
299	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
300	}
301
302	sub attach_to_objects {
303	_attach @CB_OBJECT, KLASS_OBJECT, @_
304	}
305
306	sub attach_to_players {
307	_attach @CB_PLAYER, KLASS_PLAYER, @_
308	}
309
310	sub attach_to_maps {
311	_attach @CB_MAP, KLASS_MAP, @_
312	}
313
314	sub register_attachment {
315	my $name = shift;	658	my \$name = shift;
316		659
317	$attachment{$name} = [[KLASS_OBJECT, @_]];	660	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		661	}
		662	";
		663	die if $@;
318	}	664	}
319		665
320	our $override;	666	our $override;
321	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	667	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
322		668
…		…
336	for (@$callbacks) {	682	for (@$callbacks) {
337	eval { &{$_->[1]} };	683	eval { &{$_->[1]} };
338		684
339	if ($@) {	685	if ($@) {
340	warn "$@";	686	warn "$@";
341	warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n";	687	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
342	override;	688	override;
343	}	689	}
344		690
345	return 1 if $override;	691	return 1 if $override;
346	}	692	}
347		693
348	0	694	0
349	}	695	}
		696
		697	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		698
		699	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		700
		701	Generate an object-specific event with the given arguments.
		702
		703	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		704	removed in future versions), and there is no public API to access override
		705	results (if you must, access C<@cf::invoke_results> directly).
		706
		707	=back
		708
		709	=cut
350		710
351	#############################################################################	711	#############################################################################
352	# object support	712	# object support
353		713
354	sub instantiate {
355	my ($obj, $data) = @_;
356
357	$data = from_json $data;
358
359	for (@$data) {
360	my ($name, $args) = @$_;
361	attach $obj, $name, %{$args || {} };
362	}
363	}
364
365	# basically do the same as instantiate, without calling instantiate
366	sub reattach {	714	sub reattach {
		715	# basically do the same as instantiate, without calling instantiate
367	my ($obj) = @_;	716	my ($obj) = @_;
		717
368	my $registry = $obj->registry;	718	my $registry = $obj->registry;
369		719
370	@$registry = ();	720	@$registry = ();
371		721
		722	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
		723
372	for my $name (@{ $obj->{_attachment} }) {	724	for my $name (keys %{ $obj->{_attachment} || {} }) {
373	if (my $attach = $attachment{$name}) {	725	if (my $attach = $attachment{$name}) {
374	for (@$attach) {	726	for (@$attach) {
375	my ($klass, @attach) = @$_;	727	my ($klass, @attach) = @$_;
376	_attach @$registry, $klass, @attach;	728	_attach $registry, $klass, @attach;
377	}	729	}
378	} else {	730	} else {
379	warn "object uses attachment '$name' that is not available, postponing.\n";	731	warn "object uses attachment '$name' that is not available, postponing.\n";
380	}	732	}
381	}	733	}
382	}	734	}
383		735
		736	cf::attachable->attach (
		737	prio => -1000000,
		738	on_instantiate => sub {
		739	my ($obj, $data) = @_;
		740
		741	$data = from_json $data;
		742
		743	for (@$data) {
		744	my ($name, $args) = @$_;
		745
		746	$obj->attach ($name, %{$args || {} });
		747	}
		748	},
		749	on_reattach => \&reattach,
		750	on_clone => sub {
		751	my ($src, $dst) = @_;
		752
		753	@{$dst->registry} = @{$src->registry};
		754
		755	%$dst = %$src;
		756
		757	%{$dst->{_attachment}} = %{$src->{_attachment}}
		758	if exists $src->{_attachment};
		759	},
		760	);
		761
384	sub object_freezer_save {	762	sub object_freezer_save {
385	my ($filename, $objs) = @_;	763	my ($filename, $rdata, $objs) = @_;
386		764
387	$filename .= ".pst";	765	sync_job {
		766	if (length $$rdata) {
		767	warn sprintf "saving %s (%d,%d)\n",
		768	$filename, length $$rdata, scalar @$objs;
388		769
389	if (@$objs) {	770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
390	open my $fh, ">:raw", "$filename~";	771	chmod SAVE_MODE, $fh;
391	chmod $fh, SAVE_MODE;	772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
392	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	773	aio_fsync $fh;
393	close $fh;	774	close $fh;
		775
		776	if (@$objs) {
		777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		778	chmod SAVE_MODE, $fh;
		779	my $data = Storable::nfreeze { version => 1, objs => $objs };
		780	aio_write $fh, 0, (length $data), $data, 0;
		781	aio_fsync $fh;
		782	close $fh;
		783	aio_rename "$filename.pst~", "$filename.pst";
		784	}
		785	} else {
		786	aio_unlink "$filename.pst";
		787	}
		788
394	rename "$filename~", $filename;	789	aio_rename "$filename~", $filename;
		790	} else {
		791	warn "FATAL: $filename~: $!\n";
		792	}
395	} else {	793	} else {
396	unlink $filename;	794	aio_unlink $filename;
		795	aio_unlink "$filename.pst";
		796	}
397	}	797	}
		798	}
		799
		800	sub object_freezer_as_string {
		801	my ($rdata, $objs) = @_;
		802
		803	use Data::Dumper;
		804
		805	$$rdata . Dumper $objs
398	}	806	}
399		807
400	sub object_thawer_load {	808	sub object_thawer_load {
401	my ($filename) = @_;	809	my ($filename) = @_;
402		810
403	open my $fh, "<:raw:perlio", "$filename.pst"	811	my ($data, $av);
		812
		813	(aio_load $filename, $data) >= 0
404	or return;	814	or return;
405		815
406	eval { local $/; (Storable::thaw <$fh>)->{objs} }	816	unless (aio_stat "$filename.pst") {
407	}	817	(aio_load "$filename.pst", $av) >= 0
408		818	or return;
409	attach_to_objects	819	$av = eval { (Storable::thaw $av)->{objs} };
410	prio => -1000000,
411	on_clone => sub {
412	my ($src, $dst) = @_;
413
414	@{$dst->registry} = @{$src->registry};
415
416	%$dst = %$src;
417
418	$dst->{_attachment} = [@{ $src->{_attachment} }]
419	if exists $src->{_attachment};
420	},	820	}
421	;	821
		822	return ($data, $av);
		823	}
422		824
423	#############################################################################	825	#############################################################################
424	# old plug-in events	826	# command handling &c
425		827
426	sub inject_event {	828	=item cf::register_command $name => \&callback($ob,$args);
427	my $extension = shift;
428	my $event_code = shift;
429		829
430	my $cb = $hook[$event_code]{$extension}	830	Register a callback for execution when the client sends the user command
431	or return;	831	$name.
432		832
433	&$cb	833	=cut
434	}
435
436	sub inject_global_event {
437	my $event = shift;
438
439	my $cb = $hook[$event]
440	or return;
441
442	List::Util::max map &$_, values %$cb
443	}
444
445	sub inject_command {
446	my ($name, $obj, $params) = @_;
447
448	for my $cmd (@{ $command{$name} }) {
449	$cmd->[1]->($obj, $params);
450	}
451
452	-1
453	}
454		834
455	sub register_command {	835	sub register_command {
456	my ($name, $time, $cb) = @_;	836	my ($name, $cb) = @_;
457		837
458	my $caller = caller;	838	my $caller = caller;
459	#warn "registering command '$name/$time' to '$caller'";	839	#warn "registering command '$name/$time' to '$caller'";
460		840
461	push @{ $command{$name} }, [$time, $cb, $caller];	841	push @{ $COMMAND{$name} }, [$caller, $cb];
462	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
463	}	842	}
		843
		844	=item cf::register_extcmd $name => \&callback($pl,$packet);
		845
		846	Register a callbackf ro execution when the client sends an extcmd packet.
		847
		848	If the callback returns something, it is sent back as if reply was being
		849	called.
		850
		851	=cut
464		852
465	sub register_extcmd {	853	sub register_extcmd {
466	my ($name, $cb) = @_;	854	my ($name, $cb) = @_;
467		855
468	my $caller = caller;	856	my $caller = caller;
469	#warn "registering extcmd '$name' to '$caller'";	857	#warn "registering extcmd '$name' to '$caller'";
470		858
471	$extcmd{$name} = [$cb, $caller];	859	$EXTCMD{$name} = [$cb, $caller];
472	}	860	}
		861
		862	cf::player->attach (
		863	on_command => sub {
		864	my ($pl, $name, $params) = @_;
		865
		866	my $cb = $COMMAND{$name}
		867	or return;
		868
		869	for my $cmd (@$cb) {
		870	$cmd->[1]->($pl->ob, $params);
		871	}
		872
		873	cf::override;
		874	},
		875	on_extcmd => sub {
		876	my ($pl, $buf) = @_;
		877
		878	my $msg = eval { from_json $buf };
		879
		880	if (ref $msg) {
		881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		882	if (my %reply = $cb->[0]->($pl, $msg)) {
		883	$pl->ext_reply ($msg->{msgid}, %reply);
		884	}
		885	}
		886	} else {
		887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		888	}
		889
		890	cf::override;
		891	},
		892	);
473		893
474	sub register {	894	sub register {
475	my ($base, $pkg) = @_;	895	my ($base, $pkg) = @_;
476		896
477	#TODO	897	#TODO
…		…
496	. "#line 1 \"$path\"\n{\n"	916	. "#line 1 \"$path\"\n{\n"
497	. (do { local $/; <$fh> })	917	. (do { local $/; <$fh> })
498	. "\n};\n1";	918	. "\n};\n1";
499		919
500	eval $source	920	eval $source
501	or die "$path: $@";	921	or die $@ ? "$path: $@\n"
		922	: "extension disabled.\n";
502		923
503	push @exts, $pkg;	924	push @exts, $pkg;
504	$ext_pkg{$base} = $pkg;	925	$ext_pkg{$base} = $pkg;
505		926
506	# no strict 'refs';	927	# no strict 'refs';
…		…
519	# for my $idx (0 .. $#PLUGIN_EVENT) {	940	# for my $idx (0 .. $#PLUGIN_EVENT) {
520	# delete $hook[$idx]{$pkg};	941	# delete $hook[$idx]{$pkg};
521	# }	942	# }
522		943
523	# remove commands	944	# remove commands
524	for my $name (keys %command) {	945	for my $name (keys %COMMAND) {
525	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };	946	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
526		947
527	if (@cb) {	948	if (@cb) {
528	$command{$name} = \@cb;	949	$COMMAND{$name} = \@cb;
529	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
530	} else {	950	} else {
531	delete $command{$name};
532	delete $COMMAND{"$name\000"};	951	delete $COMMAND{$name};
533	}	952	}
534	}	953	}
535		954
536	# remove extcmds	955	# remove extcmds
537	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {	956	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
538	delete $extcmd{$name};	957	delete $EXTCMD{$name};
539	}	958	}
540		959
541	if (my $cb = $pkg->can ("unload")) {	960	if (my $cb = $pkg->can ("unload")) {
542	eval {	961	eval {
543	$cb->($pkg);	962	$cb->($pkg);
…		…
547		966
548	Symbol::delete_package $pkg;	967	Symbol::delete_package $pkg;
549	}	968	}
550		969
551	sub load_extensions {	970	sub load_extensions {
552	my $LIBDIR = maps_directory "perl";
553
554	for my $ext (<$LIBDIR/*.ext>) {	971	for my $ext (<$LIBDIR/*.ext>) {
555	next unless -r $ext;	972	next unless -r $ext;
556	eval {	973	eval {
557	load_extension $ext;	974	load_extension $ext;
558	1	975	1
559	} or warn "$ext not loaded: $@";	976	} or warn "$ext not loaded: $@";
560	}	977	}
561	}	978	}
562		979
563	sub _perl_reload(&) {
564	my ($msg) = @_;
565
566	$msg->("reloading...");
567
568	eval {
569	# 1. cancel all watchers
570	$_->cancel for Event::all_watchers;
571
572	# 2. unload all extensions
573	for (@exts) {
574	$msg->("unloading <$_>");
575	unload_extension $_;
576	}
577
578	# 3. unload all modules loaded from $LIBDIR
579	while (my ($k, $v) = each %INC) {
580	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
581
582	$msg->("removing <$k>");
583	delete $INC{$k};
584
585	$k =~ s/\.pm$//;
586	$k =~ s/\//::/g;
587
588	if (my $cb = $k->can ("unload_module")) {
589	$cb->();
590	}
591
592	Symbol::delete_package $k;
593	}
594
595	# 4. get rid of safe::, as good as possible
596	Symbol::delete_package "safe::$_"
597	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
598
599	# 5. remove register_script_function callbacks
600	# TODO
601
602	# 6. unload cf.pm "a bit"
603	delete $INC{"cf.pm"};
604
605	# don't, removes xs symbols, too,
606	# and global variables created in xs
607	#Symbol::delete_package __PACKAGE__;
608
609	# 7. reload cf.pm
610	$msg->("reloading cf.pm");
611	require cf;
612	};
613	$msg->($@) if $@;
614
615	$msg->("reloaded");
616	};
617
618	sub perl_reload() {
619	_perl_reload {
620	warn $_[0];
621	print "$_[0]\n";
622	};
623	}
624
625	register_command "perl-reload", 0, sub {
626	my ($who, $arg) = @_;
627
628	if ($who->flag (FLAG_WIZ)) {
629	_perl_reload {
630	warn $_[0];
631	$who->message ($_[0]);
632	};
633	}
634	};
635
636	#############################################################################
637	# extcmd framework, basically convert ext <msg>
638	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
639
640	attach_to_players
641	on_extcmd => sub {
642	my ($pl, $buf) = @_;
643
644	my $msg = eval { from_json $buf };
645
646	if (ref $msg) {
647	if (my $cb = $extcmd{$msg->{msgtype}}) {
648	if (my %reply = $cb->[0]->($pl, $msg)) {
649	$pl->ext_reply ($msg->{msgid}, %reply);
650	}
651	}
652	} else {
653	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
654	}
655
656	cf::override;
657	},
658	;
659
660	#############################################################################	980	#############################################################################
661	# load/save/clean perl data associated with a map	981	# load/save/clean perl data associated with a map
662		982
663	*cf::mapsupport::on_clean = sub {	983	*cf::mapsupport::on_clean = sub {
664	my ($map) = @_;	984	my ($map) = @_;
665		985
666	my $path = $map->tmpname;	986	my $path = $map->tmpname;
667	defined $path or return;	987	defined $path or return;
668		988
669	unlink "$path.cfperl";
670	unlink "$path.pst";	989	unlink "$path.pst";
671	};	990	};
672		991
673	*cf::mapsupport::on_swapin =
674	*cf::mapsupport::on_load = sub {
675	my ($map) = @_;
676
677	my $path = $map->tmpname;
678	$path = $map->path unless defined $path;
679
680	open my $fh, "<:raw", "$path.cfperl"
681	or return; # no perl data
682
683	my $data = Storable::thaw do { local $/; <$fh> };
684
685	$data->{version} <= 1
686	or return; # too new
687
688	$map->_set_obs ($data->{obs});
689	};
690
691	attach_to_maps prio => -10000, package => cf::mapsupport::;	992	cf::map->attach (prio => -10000, package => cf::mapsupport::);
692		993
693	#############################################################################	994	#############################################################################
694	# load/save perl data associated with player->ob objects	995	# load/save perl data associated with player->ob objects
695		996
696	sub all_objects(@) {	997	sub all_objects(@) {
697	@_, map all_objects ($_->inv), @_	998	@_, map all_objects ($_->inv), @_
698	}	999	}
699		1000
700	attach_to_players	1001	# TODO: compatibility cruft, remove when no longer needed
		1002	cf::player->attach (
701	on_load => sub {	1003	on_load => sub {
702	my ($pl, $path) = @_;	1004	my ($pl, $path) = @_;
703		1005
704	for my $o (all_objects $pl->ob) {	1006	for my $o (all_objects $pl->ob) {
705	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1007	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
707		1009
708	%$o = %{ Storable::thaw pack "H*", $value };	1010	%$o = %{ Storable::thaw pack "H*", $value };
709	}	1011	}
710	}	1012	}
711	},	1013	},
712	;	1014	);
713		1015
714	#############################################################################	1016	#############################################################################
715	# core extensions - in perl	1017
		1018	=head2 CORE EXTENSIONS
		1019
		1020	Functions and methods that extend core crossfire objects.
		1021
		1022	=head3 cf::player
		1023
		1024	=over 4
716		1025
717	=item cf::player::exists $login	1026	=item cf::player::exists $login
718		1027
719	Returns true when the given account exists.	1028	Returns true when the given account exists.
720		1029
…		…
723	sub cf::player::exists($) {	1032	sub cf::player::exists($) {
724	cf::player::find $_[0]	1033	cf::player::find $_[0]
725	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1034	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
726	}	1035	}
727		1036
		1037	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1038
		1039	Sends an ext reply to the player.
		1040
		1041	=cut
		1042
		1043	sub cf::player::ext_reply($$$%) {
		1044	my ($self, $id, %msg) = @_;
		1045
		1046	$msg{msgid} = $id;
		1047
		1048	$self->send ("ext " . to_json \%msg);
		1049	}
		1050
		1051	=back
		1052
		1053
		1054	=head3 cf::map
		1055
		1056	=over 4
		1057
		1058	=cut
		1059
		1060	package cf::map;
		1061
		1062	use Fcntl;
		1063	use Coro::AIO;
		1064
		1065	our $MAX_RESET = 7200;
		1066	our $DEFAULT_RESET = 3600;
		1067
		1068	sub generate_random_map {
		1069	my ($path, $rmp) = @_;
		1070
		1071	# mit "rum" bekleckern, nicht
		1072	cf::map::_create_random_map
		1073	$path,
		1074	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1075	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1076	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1077	$rmp->{exit_on_final_map},
		1078	$rmp->{xsize}, $rmp->{ysize},
		1079	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1080	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1081	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1082	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1083	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1084	(cf::region::find $rmp->{region})
		1085	}
		1086
		1087	# and all this just because we cannot iterate over
		1088	# all maps in C++...
		1089	sub change_all_map_light {
		1090	my ($change) = @_;
		1091
		1092	$_->change_map_light ($change) for values %cf::MAP;
		1093	}
		1094
		1095	sub try_load_header($) {
		1096	my ($path) = @_;
		1097
		1098	utf8::encode $path;
		1099	aio_open $path, O_RDONLY, 0
		1100	or return;
		1101
		1102	my $map = cf::map::new
		1103	or return;
		1104
		1105	$map->load_header ($path)
		1106	or return;
		1107
		1108	$map->{load_path} = $path;
		1109
		1110	$map
		1111	}
		1112
		1113	sub find_map {
		1114	my ($path, $origin) = @_;
		1115
		1116	#warn "find_map<$path,$origin>\n";#d#
		1117
		1118	$path = new cf::path $path, $origin && $origin->path;
		1119	my $key = $path->as_string;
		1120
		1121	$cf::MAP{$key} || do {
		1122	# do it the slow way
		1123	my $map = try_load_header $path->save_path;
		1124
		1125	if ($map) {
		1126	# safety
		1127	$map->{instantiate_time} = $cf::RUNTIME
		1128	if $map->{instantiate_time} > $cf::RUNTIME;
		1129	} else {
		1130	if (my $rmp = $path->random_map_params) {
		1131	$map = generate_random_map $key, $rmp;
		1132	} else {
		1133	$map = try_load_header $path->load_path;
		1134	}
		1135
		1136	$map or return;
		1137
		1138	$map->{load_original} = 1;
		1139	$map->{instantiate_time} = $cf::RUNTIME;
		1140	$map->instantiate;
		1141
		1142	# per-player maps become, after loading, normal maps
		1143	$map->per_player (0) if $path->{user_rel};
		1144	}
		1145
		1146	$map->path ($key);
		1147	$map->{path} = $path;
		1148	$map->{last_save} = $cf::RUNTIME;
		1149	$map->last_access ($cf::RUNTIME);
		1150
		1151	if ($map->should_reset) {
		1152	$map->reset;
		1153	$map = find_map $path;
		1154	}
		1155
		1156	$cf::MAP{$key} = $map
		1157	}
		1158	}
		1159
		1160	sub load {
		1161	my ($self) = @_;
		1162
		1163	return if $self->in_memory != cf::MAP_SWAPPED;
		1164
		1165	$self->in_memory (cf::MAP_LOADING);
		1166
		1167	my $path = $self->{path};
		1168
		1169	$self->alloc;
		1170	$self->load_objects ($self->{load_path}, 1)
		1171	or return;
		1172
		1173	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1174	if delete $self->{load_original};
		1175
		1176	if (my $uniq = $path->uniq_path) {
		1177	utf8::encode $uniq;
		1178	if (aio_open $uniq, O_RDONLY, 0) {
		1179	$self->clear_unique_items;
		1180	$self->load_objects ($uniq, 0);
		1181	}
		1182	}
		1183
		1184	# now do the right thing for maps
		1185	$self->link_multipart_objects;
		1186
		1187	if ($self->{path}->is_style_map) {
		1188	$self->{deny_save} = 1;
		1189	$self->{deny_reset} = 1;
		1190	} else {
		1191	$self->fix_auto_apply;
		1192	$self->decay_objects;
		1193	$self->update_buttons;
		1194	$self->set_darkness_map;
		1195	$self->difficulty ($self->estimate_difficulty)
		1196	unless $self->difficulty;
		1197	$self->activate;
		1198	}
		1199
		1200	$self->in_memory (cf::MAP_IN_MEMORY);
		1201	}
		1202
		1203	sub load_map_sync {
		1204	my ($path, $origin) = @_;
		1205
		1206	#warn "load_map_sync<$path, $origin>\n";#d#
		1207
		1208	cf::sync_job {
		1209	my $map = cf::map::find_map $path, $origin
		1210	or return;
		1211	$map->load;
		1212	$map
		1213	}
		1214	}
		1215
		1216	sub save {
		1217	my ($self) = @_;
		1218
		1219	$self->{last_save} = $cf::RUNTIME;
		1220
		1221	return unless $self->dirty;
		1222
		1223	my $save = $self->{path}->save_path; utf8::encode $save;
		1224	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1225
		1226	$self->{load_path} = $save;
		1227
		1228	return if $self->{deny_save};
		1229
		1230	if ($uniq) {
		1231	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1232	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1233	} else {
		1234	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1235	}
		1236	}
		1237
		1238	sub swap_out {
		1239	my ($self) = @_;
		1240
		1241	return if $self->players;
		1242	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1243	return if $self->{deny_save};
		1244
		1245	$self->save;
		1246	$self->clear;
		1247	$self->in_memory (cf::MAP_SWAPPED);
		1248	}
		1249
		1250	sub reset_at {
		1251	my ($self) = @_;
		1252
		1253	# TODO: safety, remove and allow resettable per-player maps
		1254	return 1e99 if $self->{path}{user_rel};
		1255	return 1e99 if $self->{deny_reset};
		1256
		1257	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1258	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1259
		1260	$time + $to
		1261	}
		1262
		1263	sub should_reset {
		1264	my ($self) = @_;
		1265
		1266	$self->reset_at <= $cf::RUNTIME
		1267	}
		1268
		1269	sub unlink_save {
		1270	my ($self) = @_;
		1271
		1272	utf8::encode (my $save = $self->{path}->save_path);
		1273	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1274	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1275	}
		1276
		1277	sub rename {
		1278	my ($self, $new_path) = @_;
		1279
		1280	$self->unlink_save;
		1281
		1282	delete $cf::MAP{$self->path};
		1283	$self->{path} = new cf::path $new_path;
		1284	$self->path ($self->{path}->as_string);
		1285	$cf::MAP{$self->path} = $self;
		1286
		1287	$self->save;
		1288	}
		1289
		1290	sub reset {
		1291	my ($self) = @_;
		1292
		1293	return if $self->players;
		1294	return if $self->{path}{user_rel};#d#
		1295
		1296	warn "resetting map ", $self->path;#d#
		1297
		1298	delete $cf::MAP{$self->path};
		1299
		1300	$_->clear_links_to ($self) for values %cf::MAP;
		1301
		1302	$self->unlink_save;
		1303	$self->destroy;
		1304	}
		1305
		1306	my $nuke_counter = "aaaa";
		1307
		1308	sub nuke {
		1309	my ($self) = @_;
		1310
		1311	$self->{deny_save} = 1;
		1312	$self->reset_timeout (1);
		1313	$self->rename ("{nuke}/" . ($nuke_counter++));
		1314	$self->reset; # polite request, might not happen
		1315	}
		1316
		1317	sub customise_for {
		1318	my ($map, $ob) = @_;
		1319
		1320	if ($map->per_player) {
		1321	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};
		1322	}
		1323
		1324	$map
		1325	}
		1326
		1327	sub emergency_save {
		1328	local $cf::FREEZE = 1;
		1329
		1330	warn "enter emergency map save\n";
		1331
		1332	cf::sync_job {
		1333	warn "begin emergency map save\n";
		1334	$_->save for values %cf::MAP;
		1335	};
		1336
		1337	warn "end emergency map save\n";
		1338	}
		1339
		1340	package cf;
		1341
		1342	=back
		1343
		1344
		1345	=head3 cf::object::player
		1346
		1347	=over 4
		1348
728	=item $player->reply ($npc, $msg[, $flags])	1349	=item $player_object->reply ($npc, $msg[, $flags])
729		1350
730	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1351	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
731	can be C<undef>. Does the right thing when the player is currently in a	1352	can be C<undef>. Does the right thing when the player is currently in a
732	dialogue with the given NPC character.	1353	dialogue with the given NPC character.
733		1354
734	=cut	1355	=cut
735		1356
736	# rough implementation of a future "reply" method that works	1357	# rough implementation of a future "reply" method that works
737	# with dialog boxes.	1358	# with dialog boxes.
		1359	#TODO: the first argument must go, split into a $npc->reply_to ( method
738	sub cf::object::player::reply($$$;$) {	1360	sub cf::object::player::reply($$$;$) {
739	my ($self, $npc, $msg, $flags) = @_;	1361	my ($self, $npc, $msg, $flags) = @_;
740		1362
741	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1363	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
742		1364
…		…
746	$msg = $npc->name . " says: $msg" if $npc;	1368	$msg = $npc->name . " says: $msg" if $npc;
747	$self->message ($msg, $flags);	1369	$self->message ($msg, $flags);
748	}	1370	}
749	}	1371	}
750		1372
751	=item $player->ext_reply ($msgid, $msgtype, %msg)	1373	=item $player_object->may ("access")
752		1374
753	Sends an ext reply to the player.	1375	Returns wether the given player is authorized to access resource "access"
		1376	(e.g. "command_wizcast").
754		1377
755	=cut	1378	=cut
756		1379
757	sub cf::player::ext_reply($$$%) {	1380	sub cf::object::player::may {
		1381	my ($self, $access) = @_;
		1382
		1383	$self->flag (cf::FLAG_WIZ) ||
		1384	(ref $cf::CFG{"may_$access"}
		1385	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
		1386	: $cf::CFG{"may_$access"})
		1387	}
		1388
		1389	=item $player_object->enter_link
		1390
		1391	Freezes the player and moves him/her to a special map (C<{link}>).
		1392
		1393	The player should be reaosnably safe there for short amounts of time. You
		1394	I<MUST> call C<leave_link> as soon as possible, though.
		1395
		1396	=item $player_object->leave_link ($map, $x, $y)
		1397
		1398	Moves the player out of the specila link map onto the given map. If the
		1399	map is not valid (or omitted), the player will be moved back to the
		1400	location he/she was before the call to C<enter_link>, or, if that fails,
		1401	to the emergency map position.
		1402
		1403	Might block.
		1404
		1405	=cut
		1406
		1407	sub cf::object::player::enter_link {
		1408	my ($self) = @_;
		1409
		1410	return if $self->map == $LINK_MAP;
		1411
		1412	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
		1413	if $self->map;
		1414
		1415	$self->enter_map ($LINK_MAP, 20, 20);
		1416	$self->deactivate_recursive;
		1417	}
		1418
		1419	sub cf::object::player::leave_link {
		1420	my ($self, $map, $x, $y) = @_;
		1421
		1422	my $link_pos = delete $self->{_link_pos};
		1423
		1424	unless ($map) {
		1425	# restore original map position
		1426	($map, $x, $y) = @{ $link_pos || [] };
		1427	$map = cf::map::find_map $map;
		1428
		1429	unless ($map) {
		1430	($map, $x, $y) = @$EMERGENCY_POSITION;
		1431	$map = cf::map::find_map $map
		1432	or die "FATAL: cannot load emergency map\n";
		1433	}
		1434	}
		1435
		1436	($x, $y) = (-1, -1)
		1437	unless (defined $x) && (defined $y);
		1438
		1439	# use -1 or undef as default coordinates, not 0, 0
		1440	($x, $y) = ($map->enter_x, $map->enter_y)
		1441	if $x <=0 && $y <= 0;
		1442
		1443	$map->load;
		1444
		1445	$self->activate_recursive;
		1446	$self->enter_map ($map, $x, $y);
		1447	}
		1448
		1449	=item $player_object->goto_map ($map, $x, $y)
		1450
		1451	=cut
		1452
		1453	sub cf::object::player::goto_map {
		1454	my ($self, $path, $x, $y) = @_;
		1455
		1456	$self->enter_link;
		1457
		1458	(Coro::async {
		1459	$path = new cf::path $path;
		1460
		1461	my $map = cf::map::find_map $path->as_string;
		1462	$map = $map->customise_for ($self) if $map;
		1463
		1464	warn "entering ", $map->path, " at ($x, $y)\n"
		1465	if $map;
		1466
		1467	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1468
		1469	$self->leave_link ($map, $x, $y);
		1470	})->prio (1);
		1471	}
		1472
		1473	=item $player_object->enter_exit ($exit_object)
		1474
		1475	=cut
		1476
		1477	sub parse_random_map_params {
		1478	my ($spec) = @_;
		1479
		1480	my $rmp = { # defaults
		1481	xsize => 10,
		1482	ysize => 10,
		1483	};
		1484
		1485	for (split /\n/, $spec) {
		1486	my ($k, $v) = split /\s+/, $_, 2;
		1487
		1488	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1489	}
		1490
		1491	$rmp
		1492	}
		1493
		1494	sub prepare_random_map {
		1495	my ($exit) = @_;
		1496
		1497	# all this does is basically replace the /! path by
		1498	# a new random map path (?random/...) with a seed
		1499	# that depends on the exit object
		1500
		1501	my $rmp = parse_random_map_params $exit->msg;
		1502
		1503	if ($exit->map) {
		1504	$rmp->{region} = $exit->map->region_name;
		1505	$rmp->{origin_map} = $exit->map->path;
		1506	$rmp->{origin_x} = $exit->x;
		1507	$rmp->{origin_y} = $exit->y;
		1508	}
		1509
		1510	$rmp->{random_seed} ||= $exit->random_seed;
		1511
		1512	my $data = cf::to_json $rmp;
		1513	my $md5 = Digest::MD5::md5_hex $data;
		1514
		1515	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1516	aio_write $fh, 0, (length $data), $data, 0;
		1517
		1518	$exit->slaying ("?random/$md5");
		1519	$exit->msg (undef);
		1520	}
		1521	}
		1522
		1523	sub cf::object::player::enter_exit {
758	my ($self, $id, %msg) = @_;	1524	my ($self, $exit) = @_;
759		1525
760	$msg{msgid} = $id;	1526	return unless $self->type == cf::PLAYER;
761		1527
762	$self->send ("ext " . to_json \%msg);	1528	$self->enter_link;
763	}
764		1529
765	#############################################################################	1530	(Coro::async {
766	# map scripting support	1531	unless (eval {
		1532
		1533	prepare_random_map $exit
		1534	if $exit->slaying eq "/!";
		1535
		1536	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1537	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
		1538
		1539	1;
		1540	}) {
		1541	$self->message ("Something went wrong deep within the crossfire server. "
		1542	. "I'll try to bring you back to the map you were before. "
		1543	. "Please report this to the dungeon master",
		1544	cf::NDI_UNIQUE | cf::NDI_RED);
		1545
		1546	warn "ERROR in enter_exit: $@";
		1547	$self->leave_link;
		1548	}
		1549	})->prio (1);
		1550	}
		1551
		1552	=head3 cf::client
		1553
		1554	=over 4
		1555
		1556	=item $client->send_drawinfo ($text, $flags)
		1557
		1558	Sends a drawinfo packet to the client. Circumvents output buffering so
		1559	should not be used under normal circumstances.
		1560
		1561	=cut
		1562
		1563	sub cf::client::send_drawinfo {
		1564	my ($self, $text, $flags) = @_;
		1565
		1566	utf8::encode $text;
		1567	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1568	}
		1569
		1570
		1571	=item $success = $client->query ($flags, "text", \&cb)
		1572
		1573	Queues a query to the client, calling the given callback with
		1574	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1575	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1576
		1577	Queries can fail, so check the return code. Or don't, as queries will become
		1578	reliable at some point in the future.
		1579
		1580	=cut
		1581
		1582	sub cf::client::query {
		1583	my ($self, $flags, $text, $cb) = @_;
		1584
		1585	return unless $self->state == ST_PLAYING
		1586	|| $self->state == ST_SETUP
		1587	|| $self->state == ST_CUSTOM;
		1588
		1589	$self->state (ST_CUSTOM);
		1590
		1591	utf8::encode $text;
		1592	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1593
		1594	$self->send_packet ($self->{query_queue}[0][0])
		1595	if @{ $self->{query_queue} } == 1;
		1596	}
		1597
		1598	cf::client->attach (
		1599	on_reply => sub {
		1600	my ($ns, $msg) = @_;
		1601
		1602	# this weird shuffling is so that direct followup queries
		1603	# get handled first
		1604	my $queue = delete $ns->{query_queue};
		1605
		1606	(shift @$queue)->[1]->($msg);
		1607
		1608	push @{ $ns->{query_queue} }, @$queue;
		1609
		1610	if (@{ $ns->{query_queue} } == @$queue) {
		1611	if (@$queue) {
		1612	$ns->send_packet ($ns->{query_queue}[0][0]);
		1613	} else {
		1614	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1615	}
		1616	}
		1617	},
		1618	);
		1619
		1620	=item $client->coro (\&cb)
		1621
		1622	Create a new coroutine, running the specified callback. The coroutine will
		1623	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1624	or loss of connection).
		1625
		1626	=cut
		1627
		1628	sub cf::client::coro {
		1629	my ($self, $cb) = @_;
		1630
		1631	my $coro; $coro = async {
		1632	eval {
		1633	$cb->();
		1634	};
		1635	warn $@ if $@;
		1636	};
		1637
		1638	$coro->on_destroy (sub {
		1639	delete $self->{_coro}{$coro+0};
		1640	});
		1641
		1642	$self->{_coro}{$coro+0} = $coro;
		1643
		1644	$coro
		1645	}
		1646
		1647	cf::client->attach (
		1648	on_destroy => sub {
		1649	my ($ns) = @_;
		1650
		1651	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1652	},
		1653	);
		1654
		1655	=back
		1656
		1657
		1658	=head2 SAFE SCRIPTING
		1659
		1660	Functions that provide a safe environment to compile and execute
		1661	snippets of perl code without them endangering the safety of the server
		1662	itself. Looping constructs, I/O operators and other built-in functionality
		1663	is not available in the safe scripting environment, and the number of
		1664	functions and methods that can be called is greatly reduced.
		1665
		1666	=cut
767		1667
768	our $safe = new Safe "safe";	1668	our $safe = new Safe "safe";
769	our $safe_hole = new Safe::Hole;	1669	our $safe_hole = new Safe::Hole;
770		1670
771	$SIG{FPE} = 'IGNORE';	1671	$SIG{FPE} = 'IGNORE';
772		1672
773	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	1673	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
774		1674
775	# here we export the classes and methods available to script code	1675	# here we export the classes and methods available to script code
776		1676
		1677	=pod
		1678
		1679	The following fucntions and emthods are available within a safe environment:
		1680
		1681	cf::object contr pay_amount pay_player map
		1682	cf::object::player player
		1683	cf::player peaceful
		1684	cf::map trigger
		1685
		1686	=cut
		1687
777	for (	1688	for (
778	["cf::object" => qw(contr pay_amount pay_player)],	1689	["cf::object" => qw(contr pay_amount pay_player map)],
779	["cf::object::player" => qw(player)],	1690	["cf::object::player" => qw(player)],
780	["cf::player" => qw(peaceful)],	1691	["cf::player" => qw(peaceful)],
		1692	["cf::map" => qw(trigger)],
781	) {	1693	) {
782	no strict 'refs';	1694	no strict 'refs';
783	my ($pkg, @funs) = @$_;	1695	my ($pkg, @funs) = @$_;
784	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1696	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
785	for @funs;	1697	for @funs;
786	}	1698	}
		1699
		1700	=over 4
		1701
		1702	=item @retval = safe_eval $code, [var => value, ...]
		1703
		1704	Compiled and executes the given perl code snippet. additional var/value
		1705	pairs result in temporary local (my) scalar variables of the given name
		1706	that are available in the code snippet. Example:
		1707
		1708	my $five = safe_eval '$first + $second', first => 1, second => 4;
		1709
		1710	=cut
787		1711
788	sub safe_eval($;@) {	1712	sub safe_eval($;@) {
789	my ($code, %vars) = @_;	1713	my ($code, %vars) = @_;
790		1714
791	my $qcode = $code;	1715	my $qcode = $code;
…		…
814	}	1738	}
815		1739
816	wantarray ? @res : $res[0]	1740	wantarray ? @res : $res[0]
817	}	1741	}
818		1742
		1743	=item cf::register_script_function $function => $cb
		1744
		1745	Register a function that can be called from within map/npc scripts. The
		1746	function should be reasonably secure and should be put into a package name
		1747	like the extension.
		1748
		1749	Example: register a function that gets called whenever a map script calls
		1750	C<rent::overview>, as used by the C<rent> extension.
		1751
		1752	cf::register_script_function "rent::overview" => sub {
		1753	...
		1754	};
		1755
		1756	=cut
		1757
819	sub register_script_function {	1758	sub register_script_function {
820	my ($fun, $cb) = @_;	1759	my ($fun, $cb) = @_;
821		1760
822	no strict 'refs';	1761	no strict 'refs';
823	*{"safe::$fun"} = $safe_hole->wrap ($cb);	1762	*{"safe::$fun"} = $safe_hole->wrap ($cb);
824	}	1763	}
825		1764
		1765	=back
		1766
		1767	=cut
		1768
		1769	#############################################################################
		1770
		1771	=head2 EXTENSION DATABASE SUPPORT
		1772
		1773	Crossfire maintains a very simple database for extension use. It can
		1774	currently store anything that can be serialised using Storable, which
		1775	excludes objects.
		1776
		1777	The parameter C<$family> should best start with the name of the extension
		1778	using it, it should be unique.
		1779
		1780	=over 4
		1781
		1782	=item $hashref = cf::db_get $family
		1783
		1784	Return a hashref for use by the extension C<$family>, which can be
		1785	modified. After modifications, you have to call C<cf::db_dirty> or
		1786	C<cf::db_sync>.
		1787
		1788	=item $value = cf::db_get $family => $key
		1789
		1790	Returns a single value from the database
		1791
		1792	=item cf::db_put $family => $hashref
		1793
		1794	Stores the given family hashref into the database. Updates are delayed, if
		1795	you want the data to be synced to disk immediately, use C<cf::db_sync>.
		1796
		1797	=item cf::db_put $family => $key => $value
		1798
		1799	Stores the given C<$value> in the family hash. Updates are delayed, if you
		1800	want the data to be synced to disk immediately, use C<cf::db_sync>.
		1801
		1802	=item cf::db_dirty
		1803
		1804	Marks the database as dirty, to be updated at a later time.
		1805
		1806	=item cf::db_sync
		1807
		1808	Immediately write the database to disk I<if it is dirty>.
		1809
		1810	=cut
		1811
		1812	our $DB;
		1813
		1814	{
		1815	my $path = cf::localdir . "/database.pst";
		1816
		1817	sub db_load() {
		1818	warn "loading database $path\n";#d# remove later
		1819	$DB = stat $path ? Storable::retrieve $path : { };
		1820	}
		1821
		1822	my $pid;
		1823
		1824	sub db_save() {
		1825	warn "saving database $path\n";#d# remove later
		1826	waitpid $pid, 0 if $pid;
		1827	if (0 == ($pid = fork)) {
		1828	$DB->{_meta}{version} = 1;
		1829	Storable::nstore $DB, "$path~";
		1830	rename "$path~", $path;
		1831	cf::_exit 0 if defined $pid;
		1832	}
		1833	}
		1834
		1835	my $dirty;
		1836
		1837	sub db_sync() {
		1838	db_save if $dirty;
		1839	undef $dirty;
		1840	}
		1841
		1842	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
		1843	db_sync;
		1844	});
		1845
		1846	sub db_dirty() {
		1847	$dirty = 1;
		1848	$idle->start;
		1849	}
		1850
		1851	sub db_get($;$) {
		1852	@_ >= 2
		1853	? $DB->{$_[0]}{$_[1]}
		1854	: ($DB->{$_[0]} ||= { })
		1855	}
		1856
		1857	sub db_put($$;$) {
		1858	if (@_ >= 3) {
		1859	$DB->{$_[0]}{$_[1]} = $_[2];
		1860	} else {
		1861	$DB->{$_[0]} = $_[1];
		1862	}
		1863	db_dirty;
		1864	}
		1865
		1866	cf::global->attach (
		1867	prio => 10000,
		1868	on_cleanup => sub {
		1869	db_sync;
		1870	},
		1871	);
		1872	}
		1873
826	#############################################################################	1874	#############################################################################
827	# the server's main()	1875	# the server's main()
828		1876
		1877	sub cfg_load {
		1878	open my $fh, "<:utf8", cf::confdir . "/config"
		1879	or return;
		1880
		1881	local $/;
		1882	*CFG = YAML::Syck::Load <$fh>;
		1883	}
		1884
829	sub main {	1885	sub main {
		1886	# we must not ever block the main coroutine
		1887	local $Coro::idle = sub {
		1888	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		1889	(Coro::unblock_sub {
		1890	Event::one_event;
		1891	})->();
		1892	};
		1893
		1894	cfg_load;
		1895	db_load;
		1896	load_extensions;
830	Event::loop;	1897	Event::loop;
831	}	1898	}
832		1899
833	#############################################################################	1900	#############################################################################
834	# initialisation	1901	# initialisation
835		1902
		1903	sub reload() {
		1904	# can/must only be called in main
		1905	if ($Coro::current != $Coro::main) {
		1906	warn "can only reload from main coroutine\n";
		1907	return;
		1908	}
		1909
		1910	warn "reloading...";
		1911
		1912	local $FREEZE = 1;
		1913	cf::emergency_save;
		1914
		1915	eval {
		1916	# if anything goes wrong in here, we should simply crash as we already saved
		1917
		1918	# cancel all watchers
		1919	for (Event::all_watchers) {
		1920	$_->cancel if $_->data & WF_AUTOCANCEL;
		1921	}
		1922
		1923	# cancel all extension coros
		1924	$_->cancel for values %EXT_CORO;
		1925	%EXT_CORO = ();
		1926
		1927	# unload all extensions
		1928	for (@exts) {
		1929	warn "unloading <$_>";
		1930	unload_extension $_;
		1931	}
		1932
		1933	# unload all modules loaded from $LIBDIR
		1934	while (my ($k, $v) = each %INC) {
		1935	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		1936
		1937	warn "removing <$k>";
		1938	delete $INC{$k};
		1939
		1940	$k =~ s/\.pm$//;
		1941	$k =~ s/\//::/g;
		1942
		1943	if (my $cb = $k->can ("unload_module")) {
		1944	$cb->();
		1945	}
		1946
		1947	Symbol::delete_package $k;
		1948	}
		1949
		1950	# sync database to disk
		1951	cf::db_sync;
		1952	IO::AIO::flush;
		1953
		1954	# get rid of safe::, as good as possible
		1955	Symbol::delete_package "safe::$_"
		1956	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
		1957
		1958	# remove register_script_function callbacks
		1959	# TODO
		1960
		1961	# unload cf.pm "a bit"
		1962	delete $INC{"cf.pm"};
		1963
		1964	# don't, removes xs symbols, too,
		1965	# and global variables created in xs
		1966	#Symbol::delete_package __PACKAGE__;
		1967
		1968	# reload cf.pm
		1969	warn "reloading cf.pm";
		1970	require cf;
		1971	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
		1972
		1973	# load config and database again
		1974	cf::cfg_load;
		1975	cf::db_load;
		1976
		1977	# load extensions
		1978	warn "load extensions";
		1979	cf::load_extensions;
		1980
		1981	# reattach attachments to objects
		1982	warn "reattach";
		1983	_global_reattach;
		1984	};
		1985
		1986	if ($@) {
		1987	warn $@;
		1988	warn "error while reloading, exiting.";
		1989	exit 1;
		1990	}
		1991
		1992	warn "reloaded successfully";
		1993	};
		1994
		1995	#############################################################################
		1996
		1997	unless ($LINK_MAP) {
		1998	$LINK_MAP = cf::map::new;
		1999
		2000	$LINK_MAP->width (41);
		2001	$LINK_MAP->height (41);
		2002	$LINK_MAP->alloc;
		2003	$LINK_MAP->path ("{link}");
		2004	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2005	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2006
		2007	# dirty hack because... archetypes are not yet loaded
		2008	Event->timer (
		2009	after => 2,
		2010	cb => sub {
		2011	$_[0]->w->cancel;
		2012
		2013	# provide some exits "home"
		2014	my $exit = cf::object::new "exit";
		2015
		2016	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2017	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2018	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2019
		2020	$LINK_MAP->insert ($exit->clone, 19, 19);
		2021	$LINK_MAP->insert ($exit->clone, 19, 20);
		2022	$LINK_MAP->insert ($exit->clone, 19, 21);
		2023	$LINK_MAP->insert ($exit->clone, 20, 19);
		2024	$LINK_MAP->insert ($exit->clone, 20, 21);
		2025	$LINK_MAP->insert ($exit->clone, 21, 19);
		2026	$LINK_MAP->insert ($exit->clone, 21, 20);
		2027	$LINK_MAP->insert ($exit->clone, 21, 21);
		2028
		2029	$exit->destroy;
		2030	});
		2031
		2032	$LINK_MAP->{deny_save} = 1;
		2033	$LINK_MAP->{deny_reset} = 1;
		2034
		2035	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
		2036	}
		2037
836	register "<global>", __PACKAGE__;	2038	register "<global>", __PACKAGE__;
837		2039
		2040	register_command "reload" => sub {
		2041	my ($who, $arg) = @_;
		2042
		2043	if ($who->flag (FLAG_WIZ)) {
		2044	$who->message ("start of reload.");
		2045	reload;
		2046	$who->message ("end of reload.");
		2047	}
		2048	};
		2049
838	unshift @INC, $LIBDIR;	2050	unshift @INC, $LIBDIR;
839		2051
840	load_extensions;
841
842	$TICK_WATCHER = Event->timer (	2052	$TICK_WATCHER = Event->timer (
		2053	reentrant => 0,
843	prio => 1,	2054	prio => 0,
844	at => $NEXT_TICK || 1,	2055	at => $NEXT_TICK || $TICK,
		2056	data => WF_AUTOCANCEL,
845	cb => sub {	2057	cb => sub {
		2058	unless ($FREEZE) {
846	cf::server_tick; # one server iteration	2059	cf::server_tick; # one server iteration
		2060	$RUNTIME += $TICK;
		2061	}
847		2062
848	my $NOW = Event::time;
849	$NEXT_TICK += $TICK;	2063	$NEXT_TICK += $TICK;
850		2064
851	# if we are delayed by four ticks, skip them all	2065	# if we are delayed by four ticks or more, skip them all
852	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2066	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
853		2067
854	$TICK_WATCHER->at ($NEXT_TICK);	2068	$TICK_WATCHER->at ($NEXT_TICK);
855	$TICK_WATCHER->start;	2069	$TICK_WATCHER->start;
856	},	2070	},
857	);	2071	);
858		2072
859	_reload_2;	2073	IO::AIO::max_poll_time $TICK * 0.2;
		2074
		2075	Event->io (
		2076	fd => IO::AIO::poll_fileno,
		2077	poll => 'r',
		2078	prio => 5,
		2079	data => WF_AUTOCANCEL,
		2080	cb => \&IO::AIO::poll_cb,
		2081	);
		2082
		2083	Event->timer (
		2084	data => WF_AUTOCANCEL,
		2085	after => 0,
		2086	interval => 10,
		2087	cb => sub {
		2088	(Coro::unblock_sub {
		2089	write_runtime
		2090	or warn "ERROR: unable to write runtime file: $!";
		2091	})->();
		2092	},
		2093	);
860		2094
861	1	2095	1
862		2096

Diff Legend

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