[ViewVC] Diff of: cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.84 by root, Mon Dec 11 02:54:57 2006 UTC vs.
Revision 1.131 by root, Thu Jan 4 00:53:54 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;
10	use IO::AIO ();	22	use IO::AIO 2.31 ();
11	use YAML::Syck ();	23	use YAML::Syck ();
12	use Time::HiRes;	24	use Time::HiRes;
13	use Event;	25
14	$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
15		27
16	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
17	$YAML::Syck::ImplicitUnicode = 1;	29	$YAML::Syck::ImplicitUnicode = 1;
18		30
19	use strict;	31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority
20		32
21	_init_vars;	33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
22		34
23	our %COMMAND = ();	35	our %COMMAND = ();
		36	our %COMMAND_TIME = ();
		37	our %EXTCMD = ();
		38
24	our @EVENT;	39	our @EVENT;
25	our $LIBDIR = maps_directory "perl";	40	our $LIBDIR = datadir . "/ext";
26		41
27	our $TICK = MAX_TIME * 1e-6;	42	our $TICK = MAX_TIME * 1e-6;
28	our $TICK_WATCHER;	43	our $TICK_WATCHER;
29	our $NEXT_TICK;	44	our $NEXT_TICK;
		45	our $NOW;
30		46
31	our %CFG;	47	our %CFG;
32		48
33	our $UPTIME; $UPTIME \|\|= time;	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	our $EMERGENCY_POSITION;
34		77
35	#############################################################################	78	#############################################################################
36		79
37	=head2 GLOBAL VARIABLES	80	=head2 GLOBAL VARIABLES
38		81
39	=over 4	82	=over 4
40		83
41	=item $cf::UPTIME	84	=item $cf::UPTIME
42		85
43	The timestamp of the server start (so not actually an uptime).	86	The timestamp of the server start (so not actually an uptime).
		87
		88	=item $cf::RUNTIME
		89
		90	The time this server has run, starts at 0 and is increased by $cf::TICK on
		91	every server tick.
44		92
45	=item $cf::LIBDIR	93	=item $cf::LIBDIR
46		94
47	The perl library directory, where extensions and cf-specific modules can	95	The perl library directory, where extensions and cf-specific modules can
48	be found. It will be added to C<@INC> automatically.	96	be found. It will be added to C<@INC> automatically.
		97
		98	=item $cf::NOW
		99
		100	The time of the last (current) server tick.
49		101
50	=item $cf::TICK	102	=item $cf::TICK
51		103
52	The interval between server ticks, in seconds.	104	The interval between server ticks, in seconds.
53		105
61	=cut	113	=cut
62		114
63	BEGIN {	115	BEGIN {
64	*CORE::GLOBAL::warn = sub {	116	*CORE::GLOBAL::warn = sub {
65	my $msg = join "", @_;	117	my $msg = join "", @_;
		118	utf8::encode $msg;
		119
66	$msg .= "\n"	120	$msg .= "\n"
67	unless $msg =~ /\n$/;	121	unless $msg =~ /\n$/;
68		122
69	print STDERR "cfperl: $msg";
70	LOG llevError, "cfperl: $msg";	123	LOG llevError, "cfperl: $msg";
71	};	124	};
72	}	125	}
73		126
		127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
		128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
		129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
		130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
		131	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
74	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	132	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
75		133
76	# we bless all objects into (empty) derived classes to force a method lookup	134	# we bless all objects into (empty) derived classes to force a method lookup
77	# within the Safe compartment.	135	# within the Safe compartment.
78	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {	136	for my $pkg (qw(
		137	cf::global cf::attachable
		138	cf::object cf::object::player
		139	cf::client cf::player
		140	cf::arch cf::living
		141	cf::map cf::party cf::region
		142	)) {
79	no strict 'refs';	143	no strict 'refs';
80	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	144	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
81	}	145	}
82		146
83	$Event::DIED = sub {	147	$Event::DIED = sub {
…		…
85	};	149	};
86		150
87	my %ext_pkg;	151	my %ext_pkg;
88	my @exts;	152	my @exts;
89	my @hook;	153	my @hook;
90	my %command;
91	my %extcmd;
92		154
93	=head2 UTILITY FUNCTIONS	155	=head2 UTILITY FUNCTIONS
94		156
95	=over 4	157	=over 4
96		158
…		…
118	sub to_json($) {	180	sub to_json($) {
119	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
120	JSON::Syck::Dump $_[0]	182	JSON::Syck::Dump $_[0]
121	}	183	}
122		184
		185	=item my $guard = cf::guard { BLOCK }
		186
		187	Run the given callback when the guard object gets destroyed (useful for
		188	coroutine cancellations).
		189
		190	You can call C<< ->cancel >> on the guard object to stop the block from
		191	being executed.
		192
		193	=cut
		194
		195	sub guard(&) {
		196	bless \(my $cb = $_[0]), cf::guard::;
		197	}
		198
		199	sub cf::guard::cancel {
		200	${$_[0]} = sub { };
		201	}
		202
		203	sub cf::guard::DESTROY {
		204	${$_[0]}->();
		205	}
		206
		207	=item cf::lock_wait $string
		208
		209	Wait until the given lock is available. See cf::lock_acquire.
		210
		211	=item my $lock = cf::lock_acquire $string
		212
		213	Wait until the given lock is available and then acquires it and returns
		214	a guard object. If the guard object gets destroyed (goes out of scope,
		215	for example when the coroutine gets canceled), the lock is automatically
		216	returned.
		217
		218	Lock names should begin with a unique identifier (for example, find_map
		219	uses map_find and load_map uses map_load).
		220
		221	=cut
		222
		223	our %LOCK;
		224
		225	sub lock_wait($) {
		226	my ($key) = @_;
		227
		228	# wait for lock, if any
		229	while ($LOCK{$key}) {
		230	push @{ $LOCK{$key} }, $Coro::current;
		231	Coro::schedule;
		232	}
		233	}
		234
		235	sub lock_acquire($) {
		236	my ($key) = @_;
		237
		238	# wait, to be sure we are not locked
		239	lock_wait $key;
		240
		241	$LOCK{$key} = [];
		242
		243	cf::guard {
		244	# wake up all waiters, to be on the safe side
		245	$_->ready for @{ delete $LOCK{$key} };
		246	}
		247	}
		248
		249	=item cf::async { BLOCK }
		250
		251	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
		252	error instead of exiting the server in case of a problem.
		253
		254	=cut
		255
		256	sub async(&) {
		257	my ($cb) = @_;
		258
		259	Coro::async {
		260	eval { $cb->() };
		261	warn $@ if $@;
		262	}
		263	}
		264
		265	=item cf::sync_job { BLOCK }
		266
		267	The design of crossfire+ requires that the main coro ($Coro::main) is
		268	always able to handle events or runnable, as crossfire+ is only partly
		269	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		270
		271	If it must be done, put the blocking parts into C<sync_job>. This will run
		272	the given BLOCK in another coroutine while waiting for the result. The
		273	server will be frozen during this time, so the block should either finish
		274	fast or be very important.
		275
		276	=cut
		277
		278	sub sync_job(&) {
		279	my ($job) = @_;
		280
		281	if ($Coro::current == $Coro::main) {
		282	# this is the main coro, too bad, we have to block
		283	# till the operation succeeds, freezing the server :/
		284
		285	# TODO: use suspend/resume instead
		286	# (but this is cancel-safe)
		287	local $FREEZE = 1;
		288
		289	my $busy = 1;
		290	my @res;
		291
		292	(Coro::async {
		293	@res = eval { $job->() };
		294	warn $@ if $@;
		295	undef $busy;
		296	})->prio (Coro::PRIO_MAX);
		297
		298	while ($busy) {
		299	Coro::cede_notself;
		300	Event::one_event unless Coro::nready;
		301	}
		302
		303	wantarray ? @res : $res[0]
		304	} else {
		305	# we are in another coroutine, how wonderful, everything just works
		306
		307	$job->()
		308	}
		309	}
		310
		311	=item $coro = cf::coro { BLOCK }
		312
		313	Creates and returns a new coro. This coro is automcatially being canceled
		314	when the extension calling this is being unloaded.
		315
		316	=cut
		317
		318	sub coro(&) {
		319	my $cb = shift;
		320
		321	my $coro = &cf::async ($cb);
		322
		323	$coro->on_destroy (sub {
		324	delete $EXT_CORO{$coro+0};
		325	});
		326	$EXT_CORO{$coro+0} = $coro;
		327
		328	$coro
		329	}
		330
		331	sub write_runtime {
		332	my $runtime = cf::localdir . "/runtime";
		333
		334	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
		335	or return;
		336
		337	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		338	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		339	and return;
		340
		341	aio_fsync $fh
		342	and return;
		343
		344	close $fh
		345	or return;
		346
		347	aio_rename "$runtime~", $runtime
		348	and return;
		349
		350	1
		351	}
		352
123	=back	353	=back
124		354
125	=cut	355	=cut
126		356
127	#############################################################################	357	#############################################################################
128		358
129	=head2 EVENTS AND OBJECT ATTACHMENTS	359	package cf::path;
		360
		361	sub new {
		362	my ($class, $path, $base) = @_;
		363
		364	$path = $path->as_string if ref $path;
		365
		366	my $self = bless { }, $class;
		367
		368	# {... are special paths that are not touched
		369	# ?xxx/... are special absolute paths
		370	# ?random/... random maps
		371	# /! non-realised random map exit
		372	# /... normal maps
		373	# ~/... per-player maps without a specific player (DO NOT USE)
		374	# ~user/... per-player map of a specific user
		375
		376	if ($path =~ /^{/) {
		377	# fine as it is
		378	} elsif ($path =~ s{^\?random/}{}) {
		379	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		380	$self->{random} = cf::from_json $data;
		381	} else {
		382	if ($path =~ s{^~([^/]+)?}{}) {
		383	$self->{user_rel} = 1;
		384
		385	if (defined $1) {
		386	$self->{user} = $1;
		387	} elsif ($base =~ m{^~([^/]+)/}) {
		388	$self->{user} = $1;
		389	} else {
		390	warn "cannot resolve user-relative path without user <$path,$base>\n";
		391	}
		392	} elsif ($path =~ /^\//) {
		393	# already absolute
		394	} else {
		395	$base =~ s{[^/]+/?$}{};
		396	return $class->new ("$base/$path");
		397	}
		398
		399	for ($path) {
		400	redo if s{/\.?/}{/};
		401	redo if s{/[^/]+/\.\./}{/};
		402	}
		403	}
		404
		405	$self->{path} = $path;
		406
		407	$self
		408	}
		409
		410	# the name / primary key / in-game path
		411	sub as_string {
		412	my ($self) = @_;
		413
		414	$self->{user_rel} ? "~$self->{user}$self->{path}"
		415	: $self->{random} ? "?random/$self->{path}"
		416	: $self->{path}
		417	}
		418
		419	# the displayed name, this is a one way mapping
		420	sub visible_name {
		421	my ($self) = @_;
		422
		423	# if (my $rmp = $self->{random}) {
		424	# # todo: be more intelligent about this
		425	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		426	# } else {
		427	$self->as_string
		428	# }
		429	}
		430
		431	# escape the /'s in the path
		432	sub _escaped_path {
		433	# ∕ is U+2215
		434	(my $path = $_[0]{path}) =~ s/\//∕/g;
		435	$path
		436	}
		437
		438	# the original (read-only) location
		439	sub load_path {
		440	my ($self) = @_;
		441
		442	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		443	}
		444
		445	# the temporary/swap location
		446	sub save_path {
		447	my ($self) = @_;
		448
		449	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		450	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		451	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		452	}
		453
		454	# the unique path, might be eq to save_path
		455	sub uniq_path {
		456	my ($self) = @_;
		457
		458	$self->{user_rel} \|\| $self->{random}
		459	? undef
		460	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		461	}
		462
		463	# return random map parameters, or undef
		464	sub random_map_params {
		465	my ($self) = @_;
		466
		467	$self->{random}
		468	}
		469
		470	# this is somewhat ugly, but style maps do need special treatment
		471	sub is_style_map {
		472	$_[0]{path} =~ m{^/styles/}
		473	}
		474
		475	package cf;
		476
		477	#############################################################################
		478
		479	=head2 ATTACHABLE OBJECTS
		480
		481	Many objects in crossfire are so-called attachable objects. That means you can
		482	attach callbacks/event handlers (a collection of which is called an "attachment")
		483	to it. All such attachable objects support the following methods.
		484
		485	In the following description, CLASS can be any of C<global>, C<object>
		486	C<player>, C<client> or C<map> (i.e. the attachable objects in
		487	crossfire+).
130		488
131	=over 4	489	=over 4
132		490
133	=item $object->attach ($attachment, key => $value...)
134
135	=item $object->detach ($attachment)
136
137	Attach/detach a pre-registered attachment to an object.
138
139	=item $player->attach ($attachment, key => $value...)
140
141	=item $player->detach ($attachment)
142
143	Attach/detach a pre-registered attachment to a player.
144
145	=item $map->attach ($attachment, key => $value...)	491	=item $attachable->attach ($attachment, key => $value...)
146		492
147	=item $map->detach ($attachment)	493	=item $attachable->detach ($attachment)
148		494
149	Attach/detach a pre-registered attachment to a map.	495	Attach/detach a pre-registered attachment to a specific object and give it
		496	the specified key/value pairs as arguments.
150		497
151	=item $bool = $object->attached ($name)	498	Example, attach a minesweeper attachment to the given object, making it a
		499	10x10 minesweeper game:
152		500
153	=item $bool = $player->attached ($name)	501	$obj->attach (minesweeper => width => 10, height => 10);
154		502
155	=item $bool = $map->attached ($name)	503	=item $bool = $attachable->attached ($name)
156		504
157	Checks wether the named attachment is currently attached to the object.	505	Checks wether the named attachment is currently attached to the object.
158		506
159	=item cf::attach_global ...	507	=item cf::CLASS->attach ...
160		508
161	Attach handlers for global events.	509	=item cf::CLASS->detach ...
162		510
163	This and all following C<attach_*>-functions expect any number of the	511	Define an anonymous attachment and attach it to all objects of the given
164	following handler/hook descriptions:	512	CLASS. See the next function for an explanation of its arguments.
		513
		514	You can attach to global events by using the C<cf::global> class.
		515
		516	Example, log all player logins:
		517
		518	cf::player->attach (
		519	on_login => sub {
		520	my ($pl) = @_;
		521	...
		522	},
		523	);
		524
		525	Example, attach to the jeweler skill:
		526
		527	cf::object->attach (
		528	type => cf::SKILL,
		529	subtype => cf::SK_JEWELER,
		530	on_use_skill => sub {
		531	my ($sk, $ob, $part, $dir, $msg) = @_;
		532	...
		533	},
		534	);
		535
		536	=item cf::CLASS::attachment $name, ...
		537
		538	Register an attachment by C<$name> through which attachable objects of the
		539	given CLASS can refer to this attachment.
		540
		541	Some classes such as crossfire maps and objects can specify attachments
		542	that are attached at load/instantiate time, thus the need for a name.
		543
		544	These calls expect any number of the following handler/hook descriptions:
165		545
166	=over 4	546	=over 4
167		547
168	=item prio => $number	548	=item prio => $number
169		549
…		…
171	by another C<prio> setting). Lower priority handlers get executed	551	by another C<prio> setting). Lower priority handlers get executed
172	earlier. The default priority is C<0>, and many built-in handlers are	552	earlier. The default priority is C<0>, and many built-in handlers are
173	registered at priority C<-1000>, so lower priorities should not be used	553	registered at priority C<-1000>, so lower priorities should not be used
174	unless you know what you are doing.	554	unless you know what you are doing.
175		555
		556	=item type => $type
		557
		558	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		559	given type of objects only (the additional parameter C<subtype> can be
		560	used to further limit to the given subtype).
		561
176	=item on_I<event> => \&cb	562	=item on_I<event> => \&cb
177		563
178	Call the given code reference whenever the named event happens (event is	564	Call the given code reference whenever the named event happens (event is
179	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	565	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
180	handlers are recognised generally depends on the type of object these	566	handlers are recognised generally depends on the type of object these
…		…
189	package and register them. Only handlers for eevents supported by the	575	package and register them. Only handlers for eevents supported by the
190	object/class are recognised.	576	object/class are recognised.
191		577
192	=back	578	=back
193		579
194	=item cf::attach_to_type $object_type, $subtype, ...	580	Example, define an attachment called "sockpuppet" that calls the given
		581	event handler when a monster attacks:
195		582
196	Attach handlers for a specific object type (e.g. TRANSPORT) and	583	cf::object::attachment sockpuppet =>
197	subtype. If C<$subtype> is zero or undef, matches all objects of the given	584	on_skill_attack => sub {
198	type.	585	my ($self, $victim) = @_;
199		586	...
200	=item cf::attach_to_objects ...
201
202	Attach handlers to all objects. Do not use this except for debugging or
203	very rare events, as handlers are (obviously) called for I<all> objects in
204	the game.
205
206	=item cf::attach_to_players ...
207
208	Attach handlers to all players.
209
210	=item cf::attach_to_maps ...
211
212	Attach handlers to all maps.
213
214	=item cf:register_attachment $name, ...
215
216	Register an attachment by name through which objects can refer to this
217	attachment.
218
219	=item cf:register_player_attachment $name, ...
220
221	Register an attachment by name through which players can refer to this
222	attachment.
223
224	=item cf:register_map_attachment $name, ...
225
226	Register an attachment by name through which maps can refer to this
227	attachment.
228
229	=cut
230
231	# the following variables are defined in .xs and must not be re-created
232	our @CB_GLOBAL = (); # registry for all global events
233	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
234	our @CB_PLAYER = ();
235	our @CB_TYPE = (); # registry for type (cf-object class) based events
236	our @CB_MAP = ();
237
238	my %attachment;
239
240	sub _attach_cb($\%$$$) {
241	my ($registry, $undo, $event, $prio, $cb) = @_;
242
243	use sort 'stable';
244
245	$cb = [$prio, $cb];
246
247	@{$registry->[$event]} = sort
248	{ $a->[0] cmp $b->[0] }
249	@{$registry->[$event] \|\| []}, $cb;
250
251	push @{$undo->{cb}}, [$event, $cb];
252	}
253
254	# attach handles attaching event callbacks
255	# the only thing the caller has to do is pass the correct
256	# registry (== where the callback attaches to).
257	sub _attach(\@$@) {
258	my ($registry, $klass, @arg) = @_;
259
260	my $prio = 0;
261
262	my %undo = (
263	registry => $registry,
264	cb => [],
265	);
266
267	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
268
269	while (@arg) {
270	my $type = shift @arg;
271
272	if ($type eq "prio") {
273	$prio = shift @arg;
274
275	} elsif ($type eq "package") {
276	my $pkg = shift @arg;
277
278	while (my ($name, $id) = each %cb_id) {
279	if (my $cb = $pkg->can ($name)) {
280	_attach_cb $registry, %undo, $id, $prio, $cb;
281	}
282	}	587	}
283
284	} elsif (exists $cb_id{$type}) {
285	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
286
287	} elsif (ref $type) {
288	warn "attaching objects not supported, ignoring.\n";
289
290	} else {
291	shift @arg;
292	warn "attach argument '$type' not supported, ignoring.\n";
293	}
294	}
295
296	\%undo
297	}
298
299	sub _attach_attachment {
300	my ($obj, $name, %arg) = @_;
301
302	return if exists $obj->{_attachment}{$name};
303
304	my $res;
305
306	if (my $attach = $attachment{$name}) {
307	my $registry = $obj->registry;
308
309	for (@$attach) {
310	my ($klass, @attach) = @$_;
311	$res = _attach @$registry, $klass, @attach;
312	}
313
314	$obj->{$name} = \%arg;
315	} else {
316	warn "object uses attachment '$name' that is not available, postponing.\n";
317	}
318
319	$obj->{_attachment}{$name} = undef;
320
321	$res->{attachment} = $name;
322	$res
323	}
324
325	*cf::object::attach =
326	*cf::player::attach =
327	*cf::map::attach = sub {
328	my ($obj, $name, %arg) = @_;
329
330	_attach_attachment $obj, $name, %arg;
331	};
332
333	# all those should be optimised
334	*cf::object::detach =
335	*cf::player::detach =
336	*cf::map::detach = sub {
337	my ($obj, $name) = @_;
338
339	delete $obj->{_attachment}{$name};
340	reattach ($obj);
341	};
342
343	*cf::object::attached =
344	*cf::player::attached =
345	*cf::map::attached = sub {
346	my ($obj, $name) = @_;
347
348	exists $obj->{_attachment}{$name}
349	};
350
351	sub attach_global {
352	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
353	}
354
355	sub attach_to_type {
356	my $type = shift;
357	my $subtype = shift;
358
359	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
360	}
361
362	sub attach_to_objects {
363	_attach @CB_OBJECT, KLASS_OBJECT, @_
364	}
365
366	sub attach_to_players {
367	_attach @CB_PLAYER, KLASS_PLAYER, @_
368	}
369
370	sub attach_to_maps {
371	_attach @CB_MAP, KLASS_MAP, @_
372	}
373
374	sub register_attachment {
375	my $name = shift;
376
377	$attachment{$name} = [[KLASS_OBJECT, @_]];
378	}
379
380	sub register_player_attachment {
381	my $name = shift;
382
383	$attachment{$name} = [[KLASS_PLAYER, @_]];
384	}
385
386	sub register_map_attachment {
387	my $name = shift;
388
389	$attachment{$name} = [[KLASS_MAP, @_]];
390	}
391
392	our $override;
393	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
394
395	sub override {
396	$override = 1;
397	@invoke_results = ();
398	}
399
400	sub do_invoke {
401	my $event = shift;
402	my $callbacks = shift;
403
404	@invoke_results = ();
405
406	local $override;
407
408	for (@$callbacks) {
409	eval { &{$_->[1]} };
410
411	if ($@) {
412	warn "$@";
413	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
414	override;
415	}
416
417	return 1 if $override;
418	}
419
420	0	588	}
421	}
422		589
423	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	590	=item $attachable->valid
424
425	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
426
427	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
428
429	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
430
431	Generate a global/object/player/map-specific event with the given arguments.
432
433	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
434	removed in future versions), and there is no public API to access override
435	results (if you must, access C<@cf::invoke_results> directly).
436
437	=back
438
439	=cut
440
441	#############################################################################
442
443	=head2 METHODS VALID FOR ALL CORE OBJECTS
444
445	=over 4
446
447	=item $object->valid, $player->valid, $map->valid
448		591
449	Just because you have a perl object does not mean that the corresponding	592	Just because you have a perl object does not mean that the corresponding
450	C-level object still exists. If you try to access an object that has no	593	C-level object still exists. If you try to access an object that has no
451	valid C counterpart anymore you get an exception at runtime. This method	594	valid C counterpart anymore you get an exception at runtime. This method
452	can be used to test for existence of the C object part without causing an	595	can be used to test for existence of the C object part without causing an
453	exception.	596	exception.
454		597
		598	=cut
		599
		600	# the following variables are defined in .xs and must not be re-created
		601	our @CB_GLOBAL = (); # registry for all global events
		602	our @CB_ATTACHABLE = (); # registry for all attachables
		603	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		604	our @CB_PLAYER = ();
		605	our @CB_CLIENT = ();
		606	our @CB_TYPE = (); # registry for type (cf-object class) based events
		607	our @CB_MAP = ();
		608
		609	my %attachment;
		610
		611	sub _attach_cb($$$$) {
		612	my ($registry, $event, $prio, $cb) = @_;
		613
		614	use sort 'stable';
		615
		616	$cb = [$prio, $cb];
		617
		618	@{$registry->[$event]} = sort
		619	{ $a->[0] cmp $b->[0] }
		620	@{$registry->[$event] \|\| []}, $cb;
		621	}
		622
		623	# hack
		624	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		625
		626	# attach handles attaching event callbacks
		627	# the only thing the caller has to do is pass the correct
		628	# registry (== where the callback attaches to).
		629	sub _attach {
		630	my ($registry, $klass, @arg) = @_;
		631
		632	my $object_type;
		633	my $prio = 0;
		634	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		635
		636	#TODO: get rid of this hack
		637	if ($attachable_klass{$klass}) {
		638	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		639	}
		640
		641	while (@arg) {
		642	my $type = shift @arg;
		643
		644	if ($type eq "prio") {
		645	$prio = shift @arg;
		646
		647	} elsif ($type eq "type") {
		648	$object_type = shift @arg;
		649	$registry = $CB_TYPE[$object_type] \|\|= [];
		650
		651	} elsif ($type eq "subtype") {
		652	defined $object_type or Carp::croak "subtype specified without type";
		653	my $object_subtype = shift @arg;
		654	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] \|\|= [];
		655
		656	} elsif ($type eq "package") {
		657	my $pkg = shift @arg;
		658
		659	while (my ($name, $id) = each %cb_id) {
		660	if (my $cb = $pkg->can ($name)) {
		661	_attach_cb $registry, $id, $prio, $cb;
		662	}
		663	}
		664
		665	} elsif (exists $cb_id{$type}) {
		666	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		667
		668	} elsif (ref $type) {
		669	warn "attaching objects not supported, ignoring.\n";
		670
		671	} else {
		672	shift @arg;
		673	warn "attach argument '$type' not supported, ignoring.\n";
		674	}
		675	}
		676	}
		677
		678	sub _object_attach {
		679	my ($obj, $name, %arg) = @_;
		680
		681	return if exists $obj->{_attachment}{$name};
		682
		683	if (my $attach = $attachment{$name}) {
		684	my $registry = $obj->registry;
		685
		686	for (@$attach) {
		687	my ($klass, @attach) = @$_;
		688	_attach $registry, $klass, @attach;
		689	}
		690
		691	$obj->{$name} = \%arg;
		692	} else {
		693	warn "object uses attachment '$name' that is not available, postponing.\n";
		694	}
		695
		696	$obj->{_attachment}{$name} = undef;
		697	}
		698
		699	sub cf::attachable::attach {
		700	if (ref $_[0]) {
		701	_object_attach @_;
		702	} else {
		703	_attach shift->_attach_registry, @_;
		704	}
		705	};
		706
		707	# all those should be optimised
		708	sub cf::attachable::detach {
		709	my ($obj, $name) = @_;
		710
		711	if (ref $obj) {
		712	delete $obj->{_attachment}{$name};
		713	reattach ($obj);
		714	} else {
		715	Carp::croak "cannot, currently, detach class attachments";
		716	}
		717	};
		718
		719	sub cf::attachable::attached {
		720	my ($obj, $name) = @_;
		721
		722	exists $obj->{_attachment}{$name}
		723	}
		724
		725	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		726	eval "#line " . __LINE__ . " 'cf.pm'
		727	sub cf::\L$klass\E::_attach_registry {
		728	(\\\@CB_$klass, KLASS_$klass)
		729	}
		730
		731	sub cf::\L$klass\E::attachment {
		732	my \$name = shift;
		733
		734	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		735	}
		736	";
		737	die if $@;
		738	}
		739
		740	our $override;
		741	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		742
		743	sub override {
		744	$override = 1;
		745	@invoke_results = ();
		746	}
		747
		748	sub do_invoke {
		749	my $event = shift;
		750	my $callbacks = shift;
		751
		752	@invoke_results = ();
		753
		754	local $override;
		755
		756	for (@$callbacks) {
		757	eval { &{$_->[1]} };
		758
		759	if ($@) {
		760	warn "$@";
		761	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		762	override;
		763	}
		764
		765	return 1 if $override;
		766	}
		767
		768	0
		769	}
		770
		771	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		772
		773	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		774
		775	Generate an object-specific event with the given arguments.
		776
		777	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		778	removed in future versions), and there is no public API to access override
		779	results (if you must, access C<@cf::invoke_results> directly).
		780
455	=back	781	=back
456		782
457	=cut	783	=cut
458
459	*cf::object::valid =
460	*cf::player::valid =
461	*cf::map::valid = \&cf::_valid;
462		784
463	#############################################################################	785	#############################################################################
464	# object support	786	# object support
465		787
466	sub instantiate {
467	my ($obj, $data) = @_;
468
469	$data = from_json $data;
470
471	for (@$data) {
472	my ($name, $args) = @$_;
473
474	$obj->attach ($name, %{$args \|\| {} });
475	}
476	}
477
478	# basically do the same as instantiate, without calling instantiate
479	sub reattach {	788	sub reattach {
		789	# basically do the same as instantiate, without calling instantiate
480	my ($obj) = @_;	790	my ($obj) = @_;
		791
481	my $registry = $obj->registry;	792	my $registry = $obj->registry;
482		793
483	@$registry = ();	794	@$registry = ();
484		795
485	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} \|\| {} };	796	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} \|\| {} };
486		797
487	for my $name (keys %{ $obj->{_attachment} \|\| {} }) {	798	for my $name (keys %{ $obj->{_attachment} \|\| {} }) {
488	if (my $attach = $attachment{$name}) {	799	if (my $attach = $attachment{$name}) {
489	for (@$attach) {	800	for (@$attach) {
490	my ($klass, @attach) = @$_;	801	my ($klass, @attach) = @$_;
491	_attach @$registry, $klass, @attach;	802	_attach $registry, $klass, @attach;
492	}	803	}
493	} else {	804	} else {
494	warn "object uses attachment '$name' that is not available, postponing.\n";	805	warn "object uses attachment '$name' that is not available, postponing.\n";
495	}	806	}
496	}	807	}
497	}	808	}
498		809
499	sub object_freezer_save {	810	cf::attachable->attach (
500	my ($filename, $rdata, $objs) = @_;
501
502	if (length $$rdata) {
503	warn sprintf "saving %s (%d,%d)\n",
504	$filename, length $$rdata, scalar @$objs;
505
506	if (open my $fh, ">:raw", "$filename~") {
507	chmod SAVE_MODE, $fh;
508	syswrite $fh, $$rdata;
509	close $fh;
510
511	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
512	chmod SAVE_MODE, $fh;
513	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
514	close $fh;
515	rename "$filename.pst~", "$filename.pst";
516	} else {
517	unlink "$filename.pst";
518	}
519
520	rename "$filename~", $filename;
521	} else {
522	warn "FATAL: $filename~: $!\n";
523	}
524	} else {
525	unlink $filename;
526	unlink "$filename.pst";
527	}
528	}
529
530	sub object_freezer_as_string {
531	my ($rdata, $objs) = @_;
532
533	use Data::Dumper;
534
535	$$rdata . Dumper $objs
536	}
537
538	sub object_thawer_load {
539	my ($filename) = @_;
540
541	local $/;
542
543	my $av;
544
545	#TODO: use sysread etc.
546	if (open my $data, "<:raw:perlio", $filename) {
547	$data = <$data>;
548	if (open my $pst, "<:raw:perlio", "$filename.pst") {
549	$av = eval { (Storable::thaw <$pst>)->{objs} };
550	}
551	return ($data, $av);
552	}
553
554	()
555	}
556
557	attach_to_objects
558	prio => -1000000,	811	prio => -1000000,
		812	on_instantiate => sub {
		813	my ($obj, $data) = @_;
		814
		815	$data = from_json $data;
		816
		817	for (@$data) {
		818	my ($name, $args) = @$_;
		819
		820	$obj->attach ($name, %{$args \|\| {} });
		821	}
		822	},
		823	on_reattach => \&reattach,
559	on_clone => sub {	824	on_clone => sub {
560	my ($src, $dst) = @_;	825	my ($src, $dst) = @_;
561		826
562	@{$dst->registry} = @{$src->registry};	827	@{$dst->registry} = @{$src->registry};
563		828
564	%$dst = %$src;	829	%$dst = %$src;
565		830
566	%{$dst->{_attachment}} = %{$src->{_attachment}}	831	%{$dst->{_attachment}} = %{$src->{_attachment}}
567	if exists $src->{_attachment};	832	if exists $src->{_attachment};
568	},	833	},
569	;	834	);
		835
		836	sub object_freezer_save {
		837	my ($filename, $rdata, $objs) = @_;
		838
		839	sync_job {
		840	if (length $$rdata) {
		841	warn sprintf "saving %s (%d,%d)\n",
		842	$filename, length $$rdata, scalar @$objs;
		843
		844	if (my $fh = aio_open "$filename~", O_WRONLY \| O_CREAT, 0600) {
		845	chmod SAVE_MODE, $fh;
		846	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		847	aio_fsync $fh;
		848	close $fh;
		849
		850	if (@$objs) {
		851	if (my $fh = aio_open "$filename.pst~", O_WRONLY \| O_CREAT, 0600) {
		852	chmod SAVE_MODE, $fh;
		853	my $data = Storable::nfreeze { version => 1, objs => $objs };
		854	aio_write $fh, 0, (length $data), $data, 0;
		855	aio_fsync $fh;
		856	close $fh;
		857	aio_rename "$filename.pst~", "$filename.pst";
		858	}
		859	} else {
		860	aio_unlink "$filename.pst";
		861	}
		862
		863	aio_rename "$filename~", $filename;
		864	} else {
		865	warn "FATAL: $filename~: $!\n";
		866	}
		867	} else {
		868	aio_unlink $filename;
		869	aio_unlink "$filename.pst";
		870	}
		871	}
		872	}
		873
		874	sub object_freezer_as_string {
		875	my ($rdata, $objs) = @_;
		876
		877	use Data::Dumper;
		878
		879	$$rdata . Dumper $objs
		880	}
		881
		882	sub object_thawer_load {
		883	my ($filename) = @_;
		884
		885	my ($data, $av);
		886
		887	(aio_load $filename, $data) >= 0
		888	or return;
		889
		890	unless (aio_stat "$filename.pst") {
		891	(aio_load "$filename.pst", $av) >= 0
		892	or return;
		893	$av = eval { (Storable::thaw $av)->{objs} };
		894	}
		895
		896	warn sprintf "loading %s (%d)\n",
		897	$filename, length $data, scalar @{$av \|\| []};#d#
		898	return ($data, $av);
		899	}
570		900
571	#############################################################################	901	#############################################################################
572	# old plug-in events	902	# command handling &c
573		903
574	sub inject_event {	904	=item cf::register_command $name => \&callback($ob,$args);
575	my $extension = shift;
576	my $event_code = shift;
577		905
578	my $cb = $hook[$event_code]{$extension}	906	Register a callback for execution when the client sends the user command
579	or return;	907	$name.
580		908
581	&$cb	909	=cut
582	}
583
584	sub inject_global_event {
585	my $event = shift;
586
587	my $cb = $hook[$event]
588	or return;
589
590	List::Util::max map &$_, values %$cb
591	}
592
593	sub inject_command {
594	my ($name, $obj, $params) = @_;
595
596	for my $cmd (@{ $command{$name} }) {
597	$cmd->[1]->($obj, $params);
598	}
599
600	-1
601	}
602		910
603	sub register_command {	911	sub register_command {
604	my ($name, $time, $cb) = @_;	912	my ($name, $cb) = @_;
605		913
606	my $caller = caller;	914	my $caller = caller;
607	#warn "registering command '$name/$time' to '$caller'";	915	#warn "registering command '$name/$time' to '$caller'";
608		916
609	push @{ $command{$name} }, [$time, $cb, $caller];	917	push @{ $COMMAND{$name} }, [$caller, $cb];
610	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
611	}	918	}
		919
		920	=item cf::register_extcmd $name => \&callback($pl,$packet);
		921
		922	Register a callbackf ro execution when the client sends an extcmd packet.
		923
		924	If the callback returns something, it is sent back as if reply was being
		925	called.
		926
		927	=cut
612		928
613	sub register_extcmd {	929	sub register_extcmd {
614	my ($name, $cb) = @_;	930	my ($name, $cb) = @_;
615		931
616	my $caller = caller;	932	my $caller = caller;
617	#warn "registering extcmd '$name' to '$caller'";	933	#warn "registering extcmd '$name' to '$caller'";
618		934
619	$extcmd{$name} = [$cb, $caller];	935	$EXTCMD{$name} = [$cb, $caller];
620	}	936	}
		937
		938	cf::player->attach (
		939	on_command => sub {
		940	my ($pl, $name, $params) = @_;
		941
		942	my $cb = $COMMAND{$name}
		943	or return;
		944
		945	for my $cmd (@$cb) {
		946	$cmd->[1]->($pl->ob, $params);
		947	}
		948
		949	cf::override;
		950	},
		951	on_extcmd => sub {
		952	my ($pl, $buf) = @_;
		953
		954	my $msg = eval { from_json $buf };
		955
		956	if (ref $msg) {
		957	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		958	if (my %reply = $cb->[0]->($pl, $msg)) {
		959	$pl->ext_reply ($msg->{msgid}, %reply);
		960	}
		961	}
		962	} else {
		963	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		964	}
		965
		966	cf::override;
		967	},
		968	);
621		969
622	sub register {	970	sub register {
623	my ($base, $pkg) = @_;	971	my ($base, $pkg) = @_;
624		972
625	#TODO	973	#TODO
…		…
668	# for my $idx (0 .. $#PLUGIN_EVENT) {	1016	# for my $idx (0 .. $#PLUGIN_EVENT) {
669	# delete $hook[$idx]{$pkg};	1017	# delete $hook[$idx]{$pkg};
670	# }	1018	# }
671		1019
672	# remove commands	1020	# remove commands
673	for my $name (keys %command) {	1021	for my $name (keys %COMMAND) {
674	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };	1022	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
675		1023
676	if (@cb) {	1024	if (@cb) {
677	$command{$name} = \@cb;	1025	$COMMAND{$name} = \@cb;
678	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
679	} else {	1026	} else {
680	delete $command{$name};
681	delete $COMMAND{"$name\000"};	1027	delete $COMMAND{$name};
682	}	1028	}
683	}	1029	}
684		1030
685	# remove extcmds	1031	# remove extcmds
686	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {	1032	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
687	delete $extcmd{$name};	1033	delete $EXTCMD{$name};
688	}	1034	}
689		1035
690	if (my $cb = $pkg->can ("unload")) {	1036	if (my $cb = $pkg->can ("unload")) {
691	eval {	1037	eval {
692	$cb->($pkg);	1038	$cb->($pkg);
…		…
696		1042
697	Symbol::delete_package $pkg;	1043	Symbol::delete_package $pkg;
698	}	1044	}
699		1045
700	sub load_extensions {	1046	sub load_extensions {
701	my $LIBDIR = maps_directory "perl";
702
703	for my $ext (<$LIBDIR/*.ext>) {	1047	for my $ext (<$LIBDIR/*.ext>) {
704	next unless -r $ext;	1048	next unless -r $ext;
705	eval {	1049	eval {
706	load_extension $ext;	1050	load_extension $ext;
707	1	1051	1
708	} or warn "$ext not loaded: $@";	1052	} or warn "$ext not loaded: $@";
709	}	1053	}
710	}	1054	}
711		1055
712	#############################################################################	1056	#############################################################################
713	# extcmd framework, basically convert ext <msg>
714	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
715
716	attach_to_players
717	on_extcmd => sub {
718	my ($pl, $buf) = @_;
719
720	my $msg = eval { from_json $buf };
721
722	if (ref $msg) {
723	if (my $cb = $extcmd{$msg->{msgtype}}) {
724	if (my %reply = $cb->[0]->($pl, $msg)) {
725	$pl->ext_reply ($msg->{msgid}, %reply);
726	}
727	}
728	} else {
729	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
730	}
731
732	cf::override;
733	},
734	;
735
736	#############################################################################
737	# load/save/clean perl data associated with a map	1057	# load/save/clean perl data associated with a map
738		1058
739	*cf::mapsupport::on_clean = sub {	1059	*cf::mapsupport::on_clean = sub {
740	my ($map) = @_;	1060	my ($map) = @_;
741		1061
…		…
743	defined $path or return;	1063	defined $path or return;
744		1064
745	unlink "$path.pst";	1065	unlink "$path.pst";
746	};	1066	};
747		1067
748	attach_to_maps prio => -10000, package => cf::mapsupport::;	1068	cf::map->attach (prio => -10000, package => cf::mapsupport::);
749		1069
750	#############################################################################	1070	#############################################################################
751	# load/save perl data associated with player->ob objects	1071	# load/save perl data associated with player->ob objects
752		1072
753	sub all_objects(@) {	1073	sub all_objects(@) {
754	@_, map all_objects ($_->inv), @_	1074	@_, map all_objects ($_->inv), @_
755	}	1075	}
756		1076
757	# TODO: compatibility cruft, remove when no longer needed	1077	# TODO: compatibility cruft, remove when no longer needed
758	attach_to_players	1078	cf::player->attach (
759	on_load => sub {	1079	on_load => sub {
760	my ($pl, $path) = @_;	1080	my ($pl, $path) = @_;
761		1081
762	for my $o (all_objects $pl->ob) {	1082	for my $o (all_objects $pl->ob) {
763	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1083	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
765		1085
766	%$o = %{ Storable::thaw pack "H*", $value };	1086	%$o = %{ Storable::thaw pack "H*", $value };
767	}	1087	}
768	}	1088	}
769	},	1089	},
770	;	1090	);
771		1091
772	#############################################################################	1092	#############################################################################
773		1093
774	=head2 CORE EXTENSIONS	1094	=head2 CORE EXTENSIONS
775		1095
776	Functions and methods that extend core crossfire objects.	1096	Functions and methods that extend core crossfire objects.
		1097
		1098	=head3 cf::player
777		1099
778	=over 4	1100	=over 4
779		1101
780	=item cf::player::exists $login	1102	=item cf::player::exists $login
781		1103
…		…
786	sub cf::player::exists($) {	1108	sub cf::player::exists($) {
787	cf::player::find $_[0]	1109	cf::player::find $_[0]
788	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1110	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
789	}	1111	}
790		1112
		1113	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1114
		1115	Sends an ext reply to the player.
		1116
		1117	=cut
		1118
		1119	sub cf::player::ext_reply($$$%) {
		1120	my ($self, $id, %msg) = @_;
		1121
		1122	$msg{msgid} = $id;
		1123
		1124	$self->send ("ext " . to_json \%msg);
		1125	}
		1126
		1127	=back
		1128
		1129
		1130	=head3 cf::map
		1131
		1132	=over 4
		1133
		1134	=cut
		1135
		1136	package cf::map;
		1137
		1138	use Fcntl;
		1139	use Coro::AIO;
		1140
		1141	our $MAX_RESET = 7200;
		1142	our $DEFAULT_RESET = 3600;
		1143
		1144	sub generate_random_map {
		1145	my ($path, $rmp) = @_;
		1146
		1147	# mit "rum" bekleckern, nicht
		1148	cf::map::_create_random_map
		1149	$path,
		1150	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1151	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1152	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1153	$rmp->{exit_on_final_map},
		1154	$rmp->{xsize}, $rmp->{ysize},
		1155	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1156	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1157	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1158	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1159	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1160	(cf::region::find $rmp->{region})
		1161	}
		1162
		1163	# and all this just because we cannot iterate over
		1164	# all maps in C++...
		1165	sub change_all_map_light {
		1166	my ($change) = @_;
		1167
		1168	$_->change_map_light ($change)
		1169	for grep $_->outdoor, values %cf::MAP;
		1170	}
		1171
		1172	sub try_load_header($) {
		1173	my ($path) = @_;
		1174
		1175	utf8::encode $path;
		1176	aio_open $path, O_RDONLY, 0
		1177	or return;
		1178
		1179	my $map = cf::map::new
		1180	or return;
		1181
		1182	$map->load_header ($path)
		1183	or return;
		1184
		1185	$map->{load_path} = $path;
		1186
		1187	$map
		1188	}
		1189
		1190	sub find_map;
		1191	sub find_map {
		1192	my ($path, $origin) = @_;
		1193
		1194	#warn "find_map<$path,$origin>\n";#d#
		1195
		1196	$path = new cf::path $path, $origin && $origin->path;
		1197	my $key = $path->as_string;
		1198
		1199	cf::lock_wait "map_find:$key";
		1200
		1201	$cf::MAP{$key} \|\| do {
		1202	my $guard = cf::lock_acquire "map_find:$key";
		1203
		1204	# do it the slow way
		1205	my $map = try_load_header $path->save_path;
		1206
		1207	if ($map) {
		1208	# safety
		1209	$map->{instantiate_time} = $cf::RUNTIME
		1210	if $map->{instantiate_time} > $cf::RUNTIME;
		1211	} else {
		1212	if (my $rmp = $path->random_map_params) {
		1213	$map = generate_random_map $key, $rmp;
		1214	} else {
		1215	$map = try_load_header $path->load_path;
		1216	}
		1217
		1218	$map or return;
		1219
		1220	$map->{load_original} = 1;
		1221	$map->{instantiate_time} = $cf::RUNTIME;
		1222	$map->instantiate;
		1223
		1224	# per-player maps become, after loading, normal maps
		1225	$map->per_player (0) if $path->{user_rel};
		1226	}
		1227
		1228	$map->path ($key);
		1229	$map->{path} = $path;
		1230	$map->{last_save} = $cf::RUNTIME;
		1231	$map->last_access ($cf::RUNTIME);
		1232
		1233	if ($map->should_reset) {
		1234	$map->reset;
		1235	undef $guard;
		1236	$map = find_map $path
		1237	or return;
		1238	}
		1239
		1240	$cf::MAP{$key} = $map
		1241	}
		1242	}
		1243
		1244	sub load {
		1245	my ($self) = @_;
		1246
		1247	my $path = $self->{path};
		1248	my $guard = cf::lock_acquire "map_load:" . $path->as_string;
		1249
		1250	return if $self->in_memory != cf::MAP_SWAPPED;
		1251
		1252	$self->in_memory (cf::MAP_LOADING);
		1253
		1254	$self->alloc;
		1255	$self->load_objects ($self->{load_path}, 1)
		1256	or return;
		1257
		1258	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1259	if delete $self->{load_original};
		1260
		1261	if (my $uniq = $path->uniq_path) {
		1262	utf8::encode $uniq;
		1263	if (aio_open $uniq, O_RDONLY, 0) {
		1264	$self->clear_unique_items;
		1265	$self->load_objects ($uniq, 0);
		1266	}
		1267	}
		1268
		1269	# now do the right thing for maps
		1270	$self->link_multipart_objects;
		1271
		1272	if ($self->{path}->is_style_map) {
		1273	$self->{deny_save} = 1;
		1274	$self->{deny_reset} = 1;
		1275	} else {
		1276	$self->fix_auto_apply;
		1277	$self->decay_objects;
		1278	$self->update_buttons;
		1279	$self->set_darkness_map;
		1280	$self->difficulty ($self->estimate_difficulty)
		1281	unless $self->difficulty;
		1282	$self->activate;
		1283	}
		1284
		1285	$self->in_memory (cf::MAP_IN_MEMORY);
		1286	}
		1287
		1288	sub load_map_sync {
		1289	my ($path, $origin) = @_;
		1290
		1291	#warn "load_map_sync<$path, $origin>\n";#d#
		1292
		1293	cf::sync_job {
		1294	my $map = cf::map::find_map $path, $origin
		1295	or return;
		1296	$map->load;
		1297	$map
		1298	}
		1299	}
		1300
		1301	sub save {
		1302	my ($self) = @_;
		1303
		1304	$self->{last_save} = $cf::RUNTIME;
		1305
		1306	return unless $self->dirty;
		1307
		1308	my $save = $self->{path}->save_path; utf8::encode $save;
		1309	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1310
		1311	$self->{load_path} = $save;
		1312
		1313	return if $self->{deny_save};
		1314
		1315	if ($uniq) {
		1316	$self->save_objects ($save, cf::IO_HEADER \| cf::IO_OBJECTS);
		1317	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1318	} else {
		1319	$self->save_objects ($save, cf::IO_HEADER \| cf::IO_OBJECTS \| cf::IO_UNIQUES);
		1320	}
		1321	}
		1322
		1323	sub swap_out {
		1324	my ($self) = @_;
		1325
		1326	# save first because save cedes
		1327	$self->save;
		1328
		1329	return if $self->players;
		1330	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1331	return if $self->{deny_save};
		1332
		1333	$self->clear;
		1334	$self->in_memory (cf::MAP_SWAPPED);
		1335	}
		1336
		1337	sub reset_at {
		1338	my ($self) = @_;
		1339
		1340	# TODO: safety, remove and allow resettable per-player maps
		1341	return 1e99 if $self->{path}{user_rel};
		1342	return 1e99 if $self->{deny_reset};
		1343
		1344	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1345	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;
		1346
		1347	$time + $to
		1348	}
		1349
		1350	sub should_reset {
		1351	my ($self) = @_;
		1352
		1353	$self->reset_at <= $cf::RUNTIME
		1354	}
		1355
		1356	sub unlink_save {
		1357	my ($self) = @_;
		1358
		1359	utf8::encode (my $save = $self->{path}->save_path);
		1360	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1361	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1362	}
		1363
		1364	sub rename {
		1365	my ($self, $new_path) = @_;
		1366
		1367	$self->unlink_save;
		1368
		1369	delete $cf::MAP{$self->path};
		1370	$self->{path} = new cf::path $new_path;
		1371	$self->path ($self->{path}->as_string);
		1372	$cf::MAP{$self->path} = $self;
		1373
		1374	$self->save;
		1375	}
		1376
		1377	sub reset {
		1378	my ($self) = @_;
		1379
		1380	return if $self->players;
		1381	return if $self->{path}{user_rel};#d#
		1382
		1383	warn "resetting map ", $self->path;#d#
		1384
		1385	delete $cf::MAP{$self->path};
		1386
		1387	$_->clear_links_to ($self) for values %cf::MAP;
		1388
		1389	$self->unlink_save;
		1390	$self->destroy;
		1391	}
		1392
		1393	my $nuke_counter = "aaaa";
		1394
		1395	sub nuke {
		1396	my ($self) = @_;
		1397
		1398	$self->{deny_save} = 1;
		1399	$self->reset_timeout (1);
		1400	$self->rename ("{nuke}/" . ($nuke_counter++));
		1401	$self->reset; # polite request, might not happen
		1402	}
		1403
		1404	sub customise_for {
		1405	my ($map, $ob) = @_;
		1406
		1407	if ($map->per_player) {
		1408	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};
		1409	}
		1410
		1411	$map
		1412	}
		1413
		1414	sub emergency_save {
		1415	local $cf::FREEZE = 1;
		1416
		1417	warn "enter emergency map save\n";
		1418
		1419	cf::sync_job {
		1420	warn "begin emergency map save\n";
		1421	$_->save for values %cf::MAP;
		1422	};
		1423
		1424	warn "end emergency map save\n";
		1425	}
		1426
		1427	package cf;
		1428
		1429	=back
		1430
		1431
		1432	=head3 cf::object::player
		1433
		1434	=over 4
		1435
791	=item $player_object->reply ($npc, $msg[, $flags])	1436	=item $player_object->reply ($npc, $msg[, $flags])
792		1437
793	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1438	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
794	can be C<undef>. Does the right thing when the player is currently in a	1439	can be C<undef>. Does the right thing when the player is currently in a
795	dialogue with the given NPC character.	1440	dialogue with the given NPC character.
796		1441
797	=cut	1442	=cut
798		1443
799	# rough implementation of a future "reply" method that works	1444	# rough implementation of a future "reply" method that works
800	# with dialog boxes.	1445	# with dialog boxes.
		1446	#TODO: the first argument must go, split into a $npc->reply_to ( method
801	sub cf::object::player::reply($$$;$) {	1447	sub cf::object::player::reply($$$;$) {
802	my ($self, $npc, $msg, $flags) = @_;	1448	my ($self, $npc, $msg, $flags) = @_;
803		1449
804	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;	1450	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;
805		1451
…		…
809	$msg = $npc->name . " says: $msg" if $npc;	1455	$msg = $npc->name . " says: $msg" if $npc;
810	$self->message ($msg, $flags);	1456	$self->message ($msg, $flags);
811	}	1457	}
812	}	1458	}
813		1459
814	=item $player->ext_reply ($msgid, $msgtype, %msg)
815
816	Sends an ext reply to the player.
817
818	=cut
819
820	sub cf::player::ext_reply($$$%) {
821	my ($self, $id, %msg) = @_;
822
823	$msg{msgid} = $id;
824
825	$self->send ("ext " . to_json \%msg);
826	}
827
828	=item $player_object->may ("access")	1460	=item $player_object->may ("access")
829		1461
830	Returns wether the given player is authorized to access resource "access"	1462	Returns wether the given player is authorized to access resource "access"
831	(e.g. "command_wizcast").	1463	(e.g. "command_wizcast").
832		1464
…		…
839	(ref $cf::CFG{"may_$access"}	1471	(ref $cf::CFG{"may_$access"}
840	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1472	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
841	: $cf::CFG{"may_$access"})	1473	: $cf::CFG{"may_$access"})
842	}	1474	}
843		1475
844	=cut	1476	=item $player_object->enter_link
845		1477
846	#############################################################################	1478	Freezes the player and moves him/her to a special map (C<{link}>).
		1479
		1480	The player should be reaosnably safe there for short amounts of time. You
		1481	I<MUST> call C<leave_link> as soon as possible, though.
		1482
		1483	=item $player_object->leave_link ($map, $x, $y)
		1484
		1485	Moves the player out of the specila link map onto the given map. If the
		1486	map is not valid (or omitted), the player will be moved back to the
		1487	location he/she was before the call to C<enter_link>, or, if that fails,
		1488	to the emergency map position.
		1489
		1490	Might block.
		1491
		1492	=cut
		1493
		1494	sub cf::object::player::enter_link {
		1495	my ($self) = @_;
		1496
		1497	$self->deactivate_recursive;
		1498
		1499	return if $self->map == $LINK_MAP;
		1500
		1501	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]
		1502	if $self->map;
		1503
		1504	$self->enter_map ($LINK_MAP, 20, 20);
		1505	}
		1506
		1507	sub cf::object::player::leave_link {
		1508	my ($self, $map, $x, $y) = @_;
		1509
		1510	my $link_pos = delete $self->{_link_pos};
		1511
		1512	unless ($map) {
		1513	# restore original map position
		1514	($map, $x, $y) = @{ $link_pos \|\| [] };
		1515	$map = cf::map::find_map $map;
		1516
		1517	unless ($map) {
		1518	($map, $x, $y) = @$EMERGENCY_POSITION;
		1519	$map = cf::map::find_map $map
		1520	or die "FATAL: cannot load emergency map\n";
		1521	}
		1522	}
		1523
		1524	($x, $y) = (-1, -1)
		1525	unless (defined $x) && (defined $y);
		1526
		1527	# use -1 or undef as default coordinates, not 0, 0
		1528	($x, $y) = ($map->enter_x, $map->enter_y)
		1529	if $x <=0 && $y <= 0;
		1530
		1531	$map->load;
		1532
		1533	$self->activate_recursive;
		1534	$self->enter_map ($map, $x, $y);
		1535	}
		1536
		1537	cf::player->attach (
		1538	on_logout => sub {
		1539	my ($pl) = @_;
		1540
		1541	# abort map switching before logout
		1542	if ($pl->ob->{_link_pos}) {
		1543	cf::sync_job {
		1544	$pl->ob->leave_link
		1545	};
		1546	}
		1547	},
		1548	on_login => sub {
		1549	my ($pl) = @_;
		1550
		1551	# try to abort aborted map switching on player login :)
		1552	# should happen only on crashes
		1553	if ($pl->ob->{_link_pos}) {
		1554	$pl->ob->enter_link;
		1555	cf::async {
		1556	# we need this sleep as the login has a concurrent enter_exit running
		1557	# and this sleep increases chances of the player not ending up in scorn
		1558	Coro::Timer::sleep 1;
		1559	$pl->ob->leave_link;
		1560	};
		1561	}
		1562	},
		1563	);
		1564
		1565	=item $player_object->goto_map ($path, $x, $y)
		1566
		1567	=cut
		1568
		1569	sub cf::object::player::goto_map {
		1570	my ($self, $path, $x, $y) = @_;
		1571
		1572	$self->enter_link;
		1573
		1574	(cf::async {
		1575	$path = new cf::path $path;
		1576
		1577	my $map = cf::map::find_map $path->as_string;
		1578	$map = $map->customise_for ($self) if $map;
		1579
		1580	# warn "entering ", $map->path, " at ($x, $y)\n"
		1581	# if $map;
		1582
		1583	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
		1584
		1585	$self->leave_link ($map, $x, $y);
		1586	})->prio (1);
		1587	}
		1588
		1589	=item $player_object->enter_exit ($exit_object)
		1590
		1591	=cut
		1592
		1593	sub parse_random_map_params {
		1594	my ($spec) = @_;
		1595
		1596	my $rmp = { # defaults
		1597	xsize => 10,
		1598	ysize => 10,
		1599	};
		1600
		1601	for (split /\n/, $spec) {
		1602	my ($k, $v) = split /\s+/, $_, 2;
		1603
		1604	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1605	}
		1606
		1607	$rmp
		1608	}
		1609
		1610	sub prepare_random_map {
		1611	my ($exit) = @_;
		1612
		1613	# all this does is basically replace the /! path by
		1614	# a new random map path (?random/...) with a seed
		1615	# that depends on the exit object
		1616
		1617	my $rmp = parse_random_map_params $exit->msg;
		1618
		1619	if ($exit->map) {
		1620	$rmp->{region} = $exit->map->region_name;
		1621	$rmp->{origin_map} = $exit->map->path;
		1622	$rmp->{origin_x} = $exit->x;
		1623	$rmp->{origin_y} = $exit->y;
		1624	}
		1625
		1626	$rmp->{random_seed} \|\|= $exit->random_seed;
		1627
		1628	my $data = cf::to_json $rmp;
		1629	my $md5 = Digest::MD5::md5_hex $data;
		1630
		1631	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY \| O_CREAT, 0666) {
		1632	aio_write $fh, 0, (length $data), $data, 0;
		1633
		1634	$exit->slaying ("?random/$md5");
		1635	$exit->msg (undef);
		1636	}
		1637	}
		1638
		1639	sub cf::object::player::enter_exit {
		1640	my ($self, $exit) = @_;
		1641
		1642	return unless $self->type == cf::PLAYER;
		1643
		1644	$self->enter_link;
		1645
		1646	(cf::async {
		1647	unless (eval {
		1648	prepare_random_map $exit
		1649	if $exit->slaying eq "/!";
		1650
		1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1652	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
		1653
		1654	1;
		1655	}) {
		1656	$self->message ("Something went wrong deep within the crossfire server. "
		1657	. "I'll try to bring you back to the map you were before. "
		1658	. "Please report this to the dungeon master",
		1659	cf::NDI_UNIQUE \| cf::NDI_RED);
		1660
		1661	warn "ERROR in enter_exit: $@";
		1662	$self->leave_link;
		1663	}
		1664	})->prio (1);
		1665	}
		1666
		1667	=head3 cf::client
		1668
		1669	=over 4
		1670
		1671	=item $client->send_drawinfo ($text, $flags)
		1672
		1673	Sends a drawinfo packet to the client. Circumvents output buffering so
		1674	should not be used under normal circumstances.
		1675
		1676	=cut
		1677
		1678	sub cf::client::send_drawinfo {
		1679	my ($self, $text, $flags) = @_;
		1680
		1681	utf8::encode $text;
		1682	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1683	}
		1684
		1685
		1686	=item $success = $client->query ($flags, "text", \&cb)
		1687
		1688	Queues a query to the client, calling the given callback with
		1689	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1690	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1691
		1692	Queries can fail, so check the return code. Or don't, as queries will become
		1693	reliable at some point in the future.
		1694
		1695	=cut
		1696
		1697	sub cf::client::query {
		1698	my ($self, $flags, $text, $cb) = @_;
		1699
		1700	return unless $self->state == ST_PLAYING
		1701	\|\| $self->state == ST_SETUP
		1702	\|\| $self->state == ST_CUSTOM;
		1703
		1704	$self->state (ST_CUSTOM);
		1705
		1706	utf8::encode $text;
		1707	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1708
		1709	$self->send_packet ($self->{query_queue}[0][0])
		1710	if @{ $self->{query_queue} } == 1;
		1711	}
		1712
		1713	cf::client->attach (
		1714	on_reply => sub {
		1715	my ($ns, $msg) = @_;
		1716
		1717	# this weird shuffling is so that direct followup queries
		1718	# get handled first
		1719	my $queue = delete $ns->{query_queue}
		1720	or return; # be conservative, not sure how that can happen, but we saw a crash here
		1721
		1722	(shift @$queue)->[1]->($msg);
		1723
		1724	push @{ $ns->{query_queue} }, @$queue;
		1725
		1726	if (@{ $ns->{query_queue} } == @$queue) {
		1727	if (@$queue) {
		1728	$ns->send_packet ($ns->{query_queue}[0][0]);
		1729	} else {
		1730	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1731	}
		1732	}
		1733	},
		1734	);
		1735
		1736	=item $client->coro (\&cb)
		1737
		1738	Create a new coroutine, running the specified callback. The coroutine will
		1739	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1740	or loss of connection).
		1741
		1742	=cut
		1743
		1744	sub cf::client::coro {
		1745	my ($self, $cb) = @_;
		1746
		1747	my $coro = &cf::async ($cb);
		1748
		1749	$coro->on_destroy (sub {
		1750	delete $self->{_coro}{$coro+0};
		1751	});
		1752
		1753	$self->{_coro}{$coro+0} = $coro;
		1754
		1755	$coro
		1756	}
		1757
		1758	cf::client->attach (
		1759	on_destroy => sub {
		1760	my ($ns) = @_;
		1761
		1762	$_->cancel for values %{ (delete $ns->{_coro}) \|\| {} };
		1763	},
		1764	);
		1765
		1766	=back
		1767
847		1768
848	=head2 SAFE SCRIPTING	1769	=head2 SAFE SCRIPTING
849		1770
850	Functions that provide a safe environment to compile and execute	1771	Functions that provide a safe environment to compile and execute
851	snippets of perl code without them endangering the safety of the server	1772	snippets of perl code without them endangering the safety of the server
…		…
866		1787
867	=pod	1788	=pod
868		1789
869	The following fucntions and emthods are available within a safe environment:	1790	The following fucntions and emthods are available within a safe environment:
870		1791
871	cf::object contr pay_amount pay_player	1792	cf::object contr pay_amount pay_player map
872	cf::object::player player	1793	cf::object::player player
873	cf::player peaceful	1794	cf::player peaceful
		1795	cf::map trigger
874		1796
875	=cut	1797	=cut
876		1798
877	for (	1799	for (
878	["cf::object" => qw(contr pay_amount pay_player)],	1800	["cf::object" => qw(contr pay_amount pay_player map)],
879	["cf::object::player" => qw(player)],	1801	["cf::object::player" => qw(player)],
880	["cf::player" => qw(peaceful)],	1802	["cf::player" => qw(peaceful)],
		1803	["cf::map" => qw(trigger)],
881	) {	1804	) {
882	no strict 'refs';	1805	no strict 'refs';
883	my ($pkg, @funs) = @$_;	1806	my ($pkg, @funs) = @$_;
884	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1807	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
885	for @funs;	1808	for @funs;
…		…
1001		1924
1002	{	1925	{
1003	my $path = cf::localdir . "/database.pst";	1926	my $path = cf::localdir . "/database.pst";
1004		1927
1005	sub db_load() {	1928	sub db_load() {
1006	warn "loading database $path\n";#d# remove later
1007	$DB = stat $path ? Storable::retrieve $path : { };	1929	$DB = stat $path ? Storable::retrieve $path : { };
1008	}	1930	}
1009		1931
1010	my $pid;	1932	my $pid;
1011		1933
1012	sub db_save() {	1934	sub db_save() {
1013	warn "saving database $path\n";#d# remove later
1014	waitpid $pid, 0 if $pid;	1935	waitpid $pid, 0 if $pid;
1015	if (0 == ($pid = fork)) {	1936	if (0 == ($pid = fork)) {
1016	$DB->{_meta}{version} = 1;	1937	$DB->{_meta}{version} = 1;
1017	Storable::nstore $DB, "$path~";	1938	Storable::nstore $DB, "$path~";
1018	rename "$path~", $path;	1939	rename "$path~", $path;
…		…
1025	sub db_sync() {	1946	sub db_sync() {
1026	db_save if $dirty;	1947	db_save if $dirty;
1027	undef $dirty;	1948	undef $dirty;
1028	}	1949	}
1029		1950
1030	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	1951	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1031	db_sync;	1952	db_sync;
1032	});	1953	});
1033		1954
1034	sub db_dirty() {	1955	sub db_dirty() {
1035	$dirty = 1;	1956	$dirty = 1;
…		…
1049	$DB->{$_[0]} = $_[1];	1970	$DB->{$_[0]} = $_[1];
1050	}	1971	}
1051	db_dirty;	1972	db_dirty;
1052	}	1973	}
1053		1974
1054	attach_global	1975	cf::global->attach (
1055	prio => 10000,	1976	prio => 10000,
1056	on_cleanup => sub {	1977	on_cleanup => sub {
1057	db_sync;	1978	db_sync;
1058	},	1979	},
1059	;	1980	);
1060	}	1981	}
1061		1982
1062	#############################################################################	1983	#############################################################################
1063	# the server's main()	1984	# the server's main()
1064		1985
…		…
1066	open my $fh, "<:utf8", cf::confdir . "/config"	1987	open my $fh, "<:utf8", cf::confdir . "/config"
1067	or return;	1988	or return;
1068		1989
1069	local $/;	1990	local $/;
1070	*CFG = YAML::Syck::Load <$fh>;	1991	*CFG = YAML::Syck::Load <$fh>;
		1992
		1993	$EMERGENCY_POSITION = $CFG{emergency_position} \|\| ["/world/world_105_115", 5, 37];
		1994
		1995	if (exists $CFG{mlockall}) {
		1996	eval {
		1997	$CFG{mlockall} ? &mlockall : &munlockall
		1998	and die "WARNING: m(un)lockall failed: $!\n";
		1999	};
		2000	warn $@ if $@;
		2001	}
1071	}	2002	}
1072		2003
1073	sub main {	2004	sub main {
		2005	# we must not ever block the main coroutine
		2006	local $Coro::idle = sub {
		2007	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2008	(Coro::unblock_sub {
		2009	Event::one_event;
		2010	})->();
		2011	};
		2012
1074	cfg_load;	2013	cfg_load;
1075	db_load;	2014	db_load;
1076	load_extensions;	2015	load_extensions;
1077	Event::loop;	2016	Event::loop;
1078	}	2017	}
1079		2018
1080	#############################################################################	2019	#############################################################################
1081	# initialisation	2020	# initialisation
1082		2021
1083	sub _perl_reload(&) {	2022	sub reload() {
1084	my ($msg) = @_;	2023	# can/must only be called in main
		2024	if ($Coro::current != $Coro::main) {
		2025	warn "can only reload from main coroutine\n";
		2026	return;
		2027	}
1085		2028
1086	$msg->("reloading...");	2029	warn "reloading...";
		2030
		2031	local $FREEZE = 1;
		2032	cf::emergency_save;
1087		2033
1088	eval {	2034	eval {
		2035	# if anything goes wrong in here, we should simply crash as we already saved
		2036
1089	# cancel all watchers	2037	# cancel all watchers
1090	$_->cancel for Event::all_watchers;	2038	for (Event::all_watchers) {
		2039	$_->cancel if $_->data & WF_AUTOCANCEL;
		2040	}
		2041
		2042	# cancel all extension coros
		2043	$_->cancel for values %EXT_CORO;
		2044	%EXT_CORO = ();
1091		2045
1092	# unload all extensions	2046	# unload all extensions
1093	for (@exts) {	2047	for (@exts) {
1094	$msg->("unloading <$_>");	2048	warn "unloading <$_>";
1095	unload_extension $_;	2049	unload_extension $_;
1096	}	2050	}
1097		2051
1098	# unload all modules loaded from $LIBDIR	2052	# unload all modules loaded from $LIBDIR
1099	while (my ($k, $v) = each %INC) {	2053	while (my ($k, $v) = each %INC) {
1100	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1101		2055
1102	$msg->("removing <$k>");	2056	warn "removing <$k>";
1103	delete $INC{$k};	2057	delete $INC{$k};
1104		2058
1105	$k =~ s/\.pm$//;	2059	$k =~ s/\.pm$//;
1106	$k =~ s/\//::/g;	2060	$k =~ s/\//::/g;
1107		2061
…		…
1112	Symbol::delete_package $k;	2066	Symbol::delete_package $k;
1113	}	2067	}
1114		2068
1115	# sync database to disk	2069	# sync database to disk
1116	cf::db_sync;	2070	cf::db_sync;
		2071	IO::AIO::flush;
1117		2072
1118	# get rid of safe::, as good as possible	2073	# get rid of safe::, as good as possible
1119	Symbol::delete_package "safe::$_"	2074	Symbol::delete_package "safe::$_"
1120	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2075	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1121		2076
1122	# remove register_script_function callbacks	2077	# remove register_script_function callbacks
1123	# TODO	2078	# TODO
1124		2079
1125	# unload cf.pm "a bit"	2080	# unload cf.pm "a bit"
…		…
1128	# don't, removes xs symbols, too,	2083	# don't, removes xs symbols, too,
1129	# and global variables created in xs	2084	# and global variables created in xs
1130	#Symbol::delete_package __PACKAGE__;	2085	#Symbol::delete_package __PACKAGE__;
1131		2086
1132	# reload cf.pm	2087	# reload cf.pm
1133	$msg->("reloading cf.pm");	2088	warn "reloading cf.pm";
1134	require cf;	2089	require cf;
		2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1135		2091
1136	# load config and database again	2092	# load config and database again
1137	cf::cfg_load;	2093	cf::cfg_load;
1138	cf::db_load;	2094	cf::db_load;
1139		2095
1140	# load extensions	2096	# load extensions
1141	$msg->("load extensions");	2097	warn "load extensions";
1142	cf::load_extensions;	2098	cf::load_extensions;
1143		2099
1144	# reattach attachments to objects	2100	# reattach attachments to objects
1145	$msg->("reattach");	2101	warn "reattach";
1146	_global_reattach;	2102	_global_reattach;
1147	};	2103	};
1148	$msg->($@) if $@;
1149		2104
1150	$msg->("reloaded");	2105	if ($@) {
		2106	warn $@;
		2107	warn "error while reloading, exiting.";
		2108	exit 1;
		2109	}
		2110
		2111	warn "reloaded successfully";
1151	};	2112	};
1152		2113
1153	sub perl_reload() {	2114	#############################################################################
1154	_perl_reload {
1155	warn $_[0];
1156	print "$_[0]\n";
1157	};
1158	}
1159		2115
		2116	unless ($LINK_MAP) {
		2117	$LINK_MAP = cf::map::new;
		2118
		2119	$LINK_MAP->width (41);
		2120	$LINK_MAP->height (41);
		2121	$LINK_MAP->alloc;
		2122	$LINK_MAP->path ("{link}");
		2123	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2124	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2125
		2126	# dirty hack because... archetypes are not yet loaded
		2127	Event->timer (
		2128	after => 2,
		2129	cb => sub {
		2130	$_[0]->w->cancel;
		2131
		2132	# provide some exits "home"
		2133	my $exit = cf::object::new "exit";
		2134
		2135	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2136	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2137	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2138
		2139	$LINK_MAP->insert ($exit->clone, 19, 19);
		2140	$LINK_MAP->insert ($exit->clone, 19, 20);
		2141	$LINK_MAP->insert ($exit->clone, 19, 21);
		2142	$LINK_MAP->insert ($exit->clone, 20, 19);
		2143	$LINK_MAP->insert ($exit->clone, 20, 21);
		2144	$LINK_MAP->insert ($exit->clone, 21, 19);
		2145	$LINK_MAP->insert ($exit->clone, 21, 20);
		2146	$LINK_MAP->insert ($exit->clone, 21, 21);
		2147
		2148	$exit->destroy;
		2149	});
		2150
		2151	$LINK_MAP->{deny_save} = 1;
		2152	$LINK_MAP->{deny_reset} = 1;
		2153
		2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
		2155	}
		2156
		2157	register "<global>", __PACKAGE__;
		2158
1160	register_command "perl-reload", 0, sub {	2159	register_command "reload" => sub {
1161	my ($who, $arg) = @_;	2160	my ($who, $arg) = @_;
1162		2161
1163	if ($who->flag (FLAG_WIZ)) {	2162	if ($who->flag (FLAG_WIZ)) {
1164	_perl_reload {	2163	$who->message ("start of reload.");
1165	warn $_[0];	2164	reload;
1166	$who->message ($_[0]);	2165	$who->message ("end of reload.");
1167	};
1168	}	2166	}
1169	};	2167	};
1170		2168
1171	register "<global>", __PACKAGE__;
1172
1173	unshift @INC, $LIBDIR;	2169	unshift @INC, $LIBDIR;
1174		2170
1175	$TICK_WATCHER = Event->timer (	2171	$TICK_WATCHER = Event->timer (
		2172	reentrant => 0,
1176	prio => 1,	2173	prio => 0,
1177	async => 1,
1178	at => $NEXT_TICK \|\| 1,	2174	at => $NEXT_TICK \|\| $TICK,
		2175	data => WF_AUTOCANCEL,
1179	cb => sub {	2176	cb => sub {
		2177	unless ($FREEZE) {
1180	cf::server_tick; # one server iteration	2178	cf::server_tick; # one server iteration
		2179	$RUNTIME += $TICK;
		2180	}
1181		2181
1182	my $NOW = Event::time;
1183	$NEXT_TICK += $TICK;	2182	$NEXT_TICK += $TICK;
1184		2183
1185	# if we are delayed by four ticks or more, skip them all	2184	# if we are delayed by four ticks or more, skip them all
1186	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2185	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1187		2186
1188	$TICK_WATCHER->at ($NEXT_TICK);	2187	$TICK_WATCHER->at ($NEXT_TICK);
1189	$TICK_WATCHER->start;	2188	$TICK_WATCHER->start;
1190	},	2189	},
1191	);	2190	);
1192		2191
1193	IO::AIO::max_poll_time $TICK * 0.2;	2192	IO::AIO::max_poll_time $TICK * 0.2;
1194		2193
		2194	Event->io (
1195	Event->io (fd => IO::AIO::poll_fileno,	2195	fd => IO::AIO::poll_fileno,
1196	poll => 'r',	2196	poll => 'r',
1197	prio => 5,	2197	prio => 5,
		2198	data => WF_AUTOCANCEL,
1198	cb => \&IO::AIO::poll_cb);	2199	cb => \&IO::AIO::poll_cb,
		2200	);
		2201
		2202	Event->timer (
		2203	data => WF_AUTOCANCEL,
		2204	after => 0,
		2205	interval => 10,
		2206	cb => sub {
		2207	(Coro::unblock_sub {
		2208	write_runtime
		2209	or warn "ERROR: unable to write runtime file: $!";
		2210	})->();
		2211	},
		2212	);
		2213
		2214	END { cf::emergency_save }
1199		2215
1200	1	2216	1
1201		2217

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.84 by root, Mon Dec 11 02:54:57 2006 UTC vs. Revision 1.131 by root, Thu Jan 4 00:53:54 2007 UTC

Diff Legend

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.84 by root, Mon Dec 11 02:54:57 2006 UTC vs.
Revision 1.131 by root, Thu Jan 4 00:53:54 2007 UTC