[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 1.140 by root, Fri Jan 5 20:04:02 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 (Coro::PRIO_MAX); # 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 $RANDOM_MAPS = cf::localdir . "/random";
		55	our %EXT_CORO;
		56
		57	binmode STDOUT;
		58	binmode STDERR;
		59
		60	# read virtual server time, if available
		61	unless ($RUNTIME \|\| !-e cf::localdir . "/runtime") {
		62	open my $fh, "<", cf::localdir . "/runtime"
		63	or die "unable to read runtime file: $!";
		64	$RUNTIME = <$fh> + 0.;
		65	}
		66
		67	mkdir cf::localdir;
		68	mkdir cf::localdir . "/" . cf::playerdir;
		69	mkdir cf::localdir . "/" . cf::tmpdir;
		70	mkdir cf::localdir . "/" . cf::uniquedir;
		71	mkdir $RANDOM_MAPS;
		72
		73	# a special map that is always available
		74	our $LINK_MAP;
		75	our $EMERGENCY_POSITION;
34		76
35	#############################################################################	77	#############################################################################
36		78
37	=head2 GLOBAL VARIABLES	79	=head2 GLOBAL VARIABLES
38		80
39	=over 4	81	=over 4
40		82
41	=item $cf::UPTIME	83	=item $cf::UPTIME
42		84
43	The timestamp of the server start (so not actually an uptime).	85	The timestamp of the server start (so not actually an uptime).
		86
		87	=item $cf::RUNTIME
		88
		89	The time this server has run, starts at 0 and is increased by $cf::TICK on
		90	every server tick.
44		91
45	=item $cf::LIBDIR	92	=item $cf::LIBDIR
46		93
47	The perl library directory, where extensions and cf-specific modules can	94	The perl library directory, where extensions and cf-specific modules can
48	be found. It will be added to C<@INC> automatically.	95	be found. It will be added to C<@INC> automatically.
		96
		97	=item $cf::NOW
		98
		99	The time of the last (current) server tick.
49		100
50	=item $cf::TICK	101	=item $cf::TICK
51		102
52	The interval between server ticks, in seconds.	103	The interval between server ticks, in seconds.
53		104
61	=cut	112	=cut
62		113
63	BEGIN {	114	BEGIN {
64	*CORE::GLOBAL::warn = sub {	115	*CORE::GLOBAL::warn = sub {
65	my $msg = join "", @_;	116	my $msg = join "", @_;
		117	utf8::encode $msg;
		118
66	$msg .= "\n"	119	$msg .= "\n"
67	unless $msg =~ /\n$/;	120	unless $msg =~ /\n$/;
68		121
69	print STDERR "cfperl: $msg";
70	LOG llevError, "cfperl: $msg";	122	LOG llevError, "cfperl: $msg";
71	};	123	};
72	}	124	}
73		125
		126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
		127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
		128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
		129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
		130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
74	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
75		132
76	# we bless all objects into (empty) derived classes to force a method lookup	133	# we bless all objects into (empty) derived classes to force a method lookup
77	# within the Safe compartment.	134	# 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)) {	135	for my $pkg (qw(
		136	cf::global cf::attachable
		137	cf::object cf::object::player
		138	cf::client cf::player
		139	cf::arch cf::living
		140	cf::map cf::party cf::region
		141	)) {
79	no strict 'refs';	142	no strict 'refs';
80	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
81	}	144	}
82		145
83	$Event::DIED = sub {	146	$Event::DIED = sub {
…		…
85	};	148	};
86		149
87	my %ext_pkg;	150	my %ext_pkg;
88	my @exts;	151	my @exts;
89	my @hook;	152	my @hook;
90	my %command;
91	my %extcmd;
92		153
93	=head2 UTILITY FUNCTIONS	154	=head2 UTILITY FUNCTIONS
94		155
95	=over 4	156	=over 4
96		157
…		…
118	sub to_json($) {	179	sub to_json($) {
119	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
120	JSON::Syck::Dump $_[0]	181	JSON::Syck::Dump $_[0]
121	}	182	}
122		183
		184	=item cf::lock_wait $string
		185
		186	Wait until the given lock is available. See cf::lock_acquire.
		187
		188	=item my $lock = cf::lock_acquire $string
		189
		190	Wait until the given lock is available and then acquires it and returns
		191	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		192	for example when the coroutine gets canceled), the lock is automatically
		193	returned.
		194
		195	Lock names should begin with a unique identifier (for example, cf::map::find
		196	uses map_find and cf::map::load uses map_load).
		197
		198	=cut
		199
		200	our %LOCK;
		201
		202	sub lock_wait($) {
		203	my ($key) = @_;
		204
		205	# wait for lock, if any
		206	while ($LOCK{$key}) {
		207	push @{ $LOCK{$key} }, $Coro::current;
		208	Coro::schedule;
		209	}
		210	}
		211
		212	sub lock_acquire($) {
		213	my ($key) = @_;
		214
		215	# wait, to be sure we are not locked
		216	lock_wait $key;
		217
		218	$LOCK{$key} = [];
		219
		220	Coro::guard {
		221	# wake up all waiters, to be on the safe side
		222	$_->ready for @{ delete $LOCK{$key} };
		223	}
		224	}
		225
		226	sub freeze_mainloop {
		227	return unless $TICK_WATCHER->is_active;
		228
		229	my $guard = Coro::guard { $TICK_WATCHER->start };
		230	$TICK_WATCHER->stop;
		231	$guard
		232	}
		233
		234	=item cf::async { BLOCK }
		235
		236	Currently the same as Coro::async_pool, meaning you cannot use
		237	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		238	thing you are allowed to do is call C<prio> on it.
		239
		240	=cut
		241
		242	BEGIN { *async = \&Coro::async_pool }
		243
		244	=item cf::sync_job { BLOCK }
		245
		246	The design of crossfire+ requires that the main coro ($Coro::main) is
		247	always able to handle events or runnable, as crossfire+ is only partly
		248	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		249
		250	If it must be done, put the blocking parts into C<sync_job>. This will run
		251	the given BLOCK in another coroutine while waiting for the result. The
		252	server will be frozen during this time, so the block should either finish
		253	fast or be very important.
		254
		255	=cut
		256
		257	sub sync_job(&) {
		258	my ($job) = @_;
		259
		260	if ($Coro::current == $Coro::main) {
		261	# this is the main coro, too bad, we have to block
		262	# till the operation succeeds, freezing the server :/
		263
		264	# TODO: use suspend/resume instead
		265	# (but this is cancel-safe)
		266	my $freeze_guard = freeze_mainloop;
		267
		268	my $busy = 1;
		269	my @res;
		270
		271	(async {
		272	@res = eval { $job->() };
		273	warn $@ if $@;
		274	undef $busy;
		275	})->prio (Coro::PRIO_MAX);
		276
		277	while ($busy) {
		278	unless (Coro::cede) {
		279	Coro::nready ? Event::one_event 0 : Event::one_event;
		280	Coro::cede_notself unless Coro::cede;
		281	}
		282	}
		283
		284	wantarray ? @res : $res[0]
		285	} else {
		286	# we are in another coroutine, how wonderful, everything just works
		287
		288	$job->()
		289	}
		290	}
		291
		292	=item $coro = cf::async_ext { BLOCK }
		293
		294	Like async, but this coro is automcatially being canceled when the
		295	extension calling this is being unloaded.
		296
		297	=cut
		298
		299	sub async_ext(&) {
		300	my $cb = shift;
		301
		302	my $coro = &Coro::async ($cb);
		303
		304	$coro->on_destroy (sub {
		305	delete $EXT_CORO{$coro+0};
		306	});
		307	$EXT_CORO{$coro+0} = $coro;
		308
		309	$coro
		310	}
		311
		312	sub write_runtime {
		313	my $runtime = cf::localdir . "/runtime";
		314
		315	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
		316	or return;
		317
		318	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		319	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		320	and return;
		321
		322	aio_fsync $fh
		323	and return;
		324
		325	close $fh
		326	or return;
		327
		328	aio_rename "$runtime~", $runtime
		329	and return;
		330
		331	1
		332	}
		333
123	=back	334	=back
124		335
125	=cut	336	=cut
126		337
127	#############################################################################	338	#############################################################################
128		339
129	=head2 EVENTS AND OBJECT ATTACHMENTS	340	package cf::path;
		341
		342	sub new {
		343	my ($class, $path, $base) = @_;
		344
		345	$path = $path->as_string if ref $path;
		346
		347	my $self = bless { }, $class;
		348
		349	# {... are special paths that are not touched
		350	# ?xxx/... are special absolute paths
		351	# ?random/... random maps
		352	# /! non-realised random map exit
		353	# /... normal maps
		354	# ~/... per-player maps without a specific player (DO NOT USE)
		355	# ~user/... per-player map of a specific user
		356
		357	if ($path =~ /^{/) {
		358	# fine as it is
		359	} elsif ($path =~ s{^\?random/}{}) {
		360	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		361	$self->{random} = cf::from_json $data;
		362	} else {
		363	if ($path =~ s{^~([^/]+)?}{}) {
		364	$self->{user_rel} = 1;
		365
		366	if (defined $1) {
		367	$self->{user} = $1;
		368	} elsif ($base =~ m{^~([^/]+)/}) {
		369	$self->{user} = $1;
		370	} else {
		371	warn "cannot resolve user-relative path without user <$path,$base>\n";
		372	}
		373	} elsif ($path =~ /^\//) {
		374	# already absolute
		375	} else {
		376	$base =~ s{[^/]+/?$}{};
		377	return $class->new ("$base/$path");
		378	}
		379
		380	for ($path) {
		381	redo if s{/\.?/}{/};
		382	redo if s{/[^/]+/\.\./}{/};
		383	}
		384	}
		385
		386	$self->{path} = $path;
		387
		388	$self
		389	}
		390
		391	# the name / primary key / in-game path
		392	sub as_string {
		393	my ($self) = @_;
		394
		395	$self->{user_rel} ? "~$self->{user}$self->{path}"
		396	: $self->{random} ? "?random/$self->{path}"
		397	: $self->{path}
		398	}
		399
		400	# the displayed name, this is a one way mapping
		401	sub visible_name {
		402	my ($self) = @_;
		403
		404	# if (my $rmp = $self->{random}) {
		405	# # todo: be more intelligent about this
		406	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		407	# } else {
		408	$self->as_string
		409	# }
		410	}
		411
		412	# escape the /'s in the path
		413	sub _escaped_path {
		414	# ∕ is U+2215
		415	(my $path = $_[0]{path}) =~ s/\//∕/g;
		416	$path
		417	}
		418
		419	# the original (read-only) location
		420	sub load_path {
		421	my ($self) = @_;
		422
		423	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		424	}
		425
		426	# the temporary/swap location
		427	sub save_path {
		428	my ($self) = @_;
		429
		430	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		431	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		432	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		433	}
		434
		435	# the unique path, might be eq to save_path
		436	sub uniq_path {
		437	my ($self) = @_;
		438
		439	$self->{user_rel} \|\| $self->{random}
		440	? undef
		441	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		442	}
		443
		444	# return random map parameters, or undef
		445	sub random_map_params {
		446	my ($self) = @_;
		447
		448	$self->{random}
		449	}
		450
		451	# this is somewhat ugly, but style maps do need special treatment
		452	sub is_style_map {
		453	$_[0]{path} =~ m{^/styles/}
		454	}
		455
		456	package cf;
		457
		458	#############################################################################
		459
		460	=head2 ATTACHABLE OBJECTS
		461
		462	Many objects in crossfire are so-called attachable objects. That means you can
		463	attach callbacks/event handlers (a collection of which is called an "attachment")
		464	to it. All such attachable objects support the following methods.
		465
		466	In the following description, CLASS can be any of C<global>, C<object>
		467	C<player>, C<client> or C<map> (i.e. the attachable objects in
		468	crossfire+).
130		469
131	=over 4	470	=over 4
132		471
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...)	472	=item $attachable->attach ($attachment, key => $value...)
146		473
147	=item $map->detach ($attachment)	474	=item $attachable->detach ($attachment)
148		475
149	Attach/detach a pre-registered attachment to a map.	476	Attach/detach a pre-registered attachment to a specific object and give it
		477	the specified key/value pairs as arguments.
150		478
151	=item $bool = $object->attached ($name)	479	Example, attach a minesweeper attachment to the given object, making it a
		480	10x10 minesweeper game:
152		481
153	=item $bool = $player->attached ($name)	482	$obj->attach (minesweeper => width => 10, height => 10);
154		483
155	=item $bool = $map->attached ($name)	484	=item $bool = $attachable->attached ($name)
156		485
157	Checks wether the named attachment is currently attached to the object.	486	Checks wether the named attachment is currently attached to the object.
158		487
159	=item cf::attach_global ...	488	=item cf::CLASS->attach ...
160		489
161	Attach handlers for global events.	490	=item cf::CLASS->detach ...
162		491
163	This and all following C<attach_*>-functions expect any number of the	492	Define an anonymous attachment and attach it to all objects of the given
164	following handler/hook descriptions:	493	CLASS. See the next function for an explanation of its arguments.
		494
		495	You can attach to global events by using the C<cf::global> class.
		496
		497	Example, log all player logins:
		498
		499	cf::player->attach (
		500	on_login => sub {
		501	my ($pl) = @_;
		502	...
		503	},
		504	);
		505
		506	Example, attach to the jeweler skill:
		507
		508	cf::object->attach (
		509	type => cf::SKILL,
		510	subtype => cf::SK_JEWELER,
		511	on_use_skill => sub {
		512	my ($sk, $ob, $part, $dir, $msg) = @_;
		513	...
		514	},
		515	);
		516
		517	=item cf::CLASS::attachment $name, ...
		518
		519	Register an attachment by C<$name> through which attachable objects of the
		520	given CLASS can refer to this attachment.
		521
		522	Some classes such as crossfire maps and objects can specify attachments
		523	that are attached at load/instantiate time, thus the need for a name.
		524
		525	These calls expect any number of the following handler/hook descriptions:
165		526
166	=over 4	527	=over 4
167		528
168	=item prio => $number	529	=item prio => $number
169		530
…		…
171	by another C<prio> setting). Lower priority handlers get executed	532	by another C<prio> setting). Lower priority handlers get executed
172	earlier. The default priority is C<0>, and many built-in handlers are	533	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	534	registered at priority C<-1000>, so lower priorities should not be used
174	unless you know what you are doing.	535	unless you know what you are doing.
175		536
		537	=item type => $type
		538
		539	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		540	given type of objects only (the additional parameter C<subtype> can be
		541	used to further limit to the given subtype).
		542
176	=item on_I<event> => \&cb	543	=item on_I<event> => \&cb
177		544
178	Call the given code reference whenever the named event happens (event is	545	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	546	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	547	handlers are recognised generally depends on the type of object these
…		…
189	package and register them. Only handlers for eevents supported by the	556	package and register them. Only handlers for eevents supported by the
190	object/class are recognised.	557	object/class are recognised.
191		558
192	=back	559	=back
193		560
194	=item cf::attach_to_type $object_type, $subtype, ...	561	Example, define an attachment called "sockpuppet" that calls the given
		562	event handler when a monster attacks:
195		563
196	Attach handlers for a specific object type (e.g. TRANSPORT) and	564	cf::object::attachment sockpuppet =>
197	subtype. If C<$subtype> is zero or undef, matches all objects of the given	565	on_skill_attack => sub {
198	type.	566	my ($self, $victim) = @_;
199		567	...
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	}	568	}
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	569	}
421	}
422		570
423	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	571	=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		572
449	Just because you have a perl object does not mean that the corresponding	573	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	574	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	575	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	576	can be used to test for existence of the C object part without causing an
453	exception.	577	exception.
454		578
		579	=cut
		580
		581	# the following variables are defined in .xs and must not be re-created
		582	our @CB_GLOBAL = (); # registry for all global events
		583	our @CB_ATTACHABLE = (); # registry for all attachables
		584	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		585	our @CB_PLAYER = ();
		586	our @CB_CLIENT = ();
		587	our @CB_TYPE = (); # registry for type (cf-object class) based events
		588	our @CB_MAP = ();
		589
		590	my %attachment;
		591
		592	sub _attach_cb($$$$) {
		593	my ($registry, $event, $prio, $cb) = @_;
		594
		595	use sort 'stable';
		596
		597	$cb = [$prio, $cb];
		598
		599	@{$registry->[$event]} = sort
		600	{ $a->[0] cmp $b->[0] }
		601	@{$registry->[$event] \|\| []}, $cb;
		602	}
		603
		604	# hack
		605	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		606
		607	# attach handles attaching event callbacks
		608	# the only thing the caller has to do is pass the correct
		609	# registry (== where the callback attaches to).
		610	sub _attach {
		611	my ($registry, $klass, @arg) = @_;
		612
		613	my $object_type;
		614	my $prio = 0;
		615	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		616
		617	#TODO: get rid of this hack
		618	if ($attachable_klass{$klass}) {
		619	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		620	}
		621
		622	while (@arg) {
		623	my $type = shift @arg;
		624
		625	if ($type eq "prio") {
		626	$prio = shift @arg;
		627
		628	} elsif ($type eq "type") {
		629	$object_type = shift @arg;
		630	$registry = $CB_TYPE[$object_type] \|\|= [];
		631
		632	} elsif ($type eq "subtype") {
		633	defined $object_type or Carp::croak "subtype specified without type";
		634	my $object_subtype = shift @arg;
		635	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] \|\|= [];
		636
		637	} elsif ($type eq "package") {
		638	my $pkg = shift @arg;
		639
		640	while (my ($name, $id) = each %cb_id) {
		641	if (my $cb = $pkg->can ($name)) {
		642	_attach_cb $registry, $id, $prio, $cb;
		643	}
		644	}
		645
		646	} elsif (exists $cb_id{$type}) {
		647	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		648
		649	} elsif (ref $type) {
		650	warn "attaching objects not supported, ignoring.\n";
		651
		652	} else {
		653	shift @arg;
		654	warn "attach argument '$type' not supported, ignoring.\n";
		655	}
		656	}
		657	}
		658
		659	sub _object_attach {
		660	my ($obj, $name, %arg) = @_;
		661
		662	return if exists $obj->{_attachment}{$name};
		663
		664	if (my $attach = $attachment{$name}) {
		665	my $registry = $obj->registry;
		666
		667	for (@$attach) {
		668	my ($klass, @attach) = @$_;
		669	_attach $registry, $klass, @attach;
		670	}
		671
		672	$obj->{$name} = \%arg;
		673	} else {
		674	warn "object uses attachment '$name' that is not available, postponing.\n";
		675	}
		676
		677	$obj->{_attachment}{$name} = undef;
		678	}
		679
		680	sub cf::attachable::attach {
		681	if (ref $_[0]) {
		682	_object_attach @_;
		683	} else {
		684	_attach shift->_attach_registry, @_;
		685	}
		686	};
		687
		688	# all those should be optimised
		689	sub cf::attachable::detach {
		690	my ($obj, $name) = @_;
		691
		692	if (ref $obj) {
		693	delete $obj->{_attachment}{$name};
		694	reattach ($obj);
		695	} else {
		696	Carp::croak "cannot, currently, detach class attachments";
		697	}
		698	};
		699
		700	sub cf::attachable::attached {
		701	my ($obj, $name) = @_;
		702
		703	exists $obj->{_attachment}{$name}
		704	}
		705
		706	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		707	eval "#line " . __LINE__ . " 'cf.pm'
		708	sub cf::\L$klass\E::_attach_registry {
		709	(\\\@CB_$klass, KLASS_$klass)
		710	}
		711
		712	sub cf::\L$klass\E::attachment {
		713	my \$name = shift;
		714
		715	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		716	}
		717	";
		718	die if $@;
		719	}
		720
		721	our $override;
		722	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		723
		724	sub override {
		725	$override = 1;
		726	@invoke_results = ();
		727	}
		728
		729	sub do_invoke {
		730	my $event = shift;
		731	my $callbacks = shift;
		732
		733	@invoke_results = ();
		734
		735	local $override;
		736
		737	for (@$callbacks) {
		738	eval { &{$_->[1]} };
		739
		740	if ($@) {
		741	warn "$@";
		742	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		743	override;
		744	}
		745
		746	return 1 if $override;
		747	}
		748
		749	0
		750	}
		751
		752	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		753
		754	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		755
		756	Generate an object-specific event with the given arguments.
		757
		758	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		759	removed in future versions), and there is no public API to access override
		760	results (if you must, access C<@cf::invoke_results> directly).
		761
455	=back	762	=back
456		763
457	=cut	764	=cut
458
459	*cf::object::valid =
460	*cf::player::valid =
461	*cf::map::valid = \&cf::_valid;
462		765
463	#############################################################################	766	#############################################################################
464	# object support	767	# object support
465		768
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 {	769	sub reattach {
		770	# basically do the same as instantiate, without calling instantiate
480	my ($obj) = @_;	771	my ($obj) = @_;
		772
481	my $registry = $obj->registry;	773	my $registry = $obj->registry;
482		774
483	@$registry = ();	775	@$registry = ();
484		776
485	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} \|\| {} };	777	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} \|\| {} };
486		778
487	for my $name (keys %{ $obj->{_attachment} \|\| {} }) {	779	for my $name (keys %{ $obj->{_attachment} \|\| {} }) {
488	if (my $attach = $attachment{$name}) {	780	if (my $attach = $attachment{$name}) {
489	for (@$attach) {	781	for (@$attach) {
490	my ($klass, @attach) = @$_;	782	my ($klass, @attach) = @$_;
491	_attach @$registry, $klass, @attach;	783	_attach $registry, $klass, @attach;
492	}	784	}
493	} else {	785	} else {
494	warn "object uses attachment '$name' that is not available, postponing.\n";	786	warn "object uses attachment '$name' that is not available, postponing.\n";
495	}	787	}
496	}	788	}
497	}	789	}
498		790
499	sub object_freezer_save {	791	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	$$rdata . Dumper $objs
536	}
537
538	sub object_thawer_load {
539	my ($filename) = @_;
540
541	local $/;
542
543	my $av;
544
545	#TODO: use sysread etc.
546	if (open my $data, "<:raw:perlio", $filename) {
547	$data = <$data>;
548	if (open my $pst, "<:raw:perlio", "$filename.pst") {
549	$av = eval { (Storable::thaw <$pst>)->{objs} };
550	}
551	return ($data, $av);
552	}
553
554	()
555	}
556
557	attach_to_objects
558	prio => -1000000,	792	prio => -1000000,
		793	on_instantiate => sub {
		794	my ($obj, $data) = @_;
		795
		796	$data = from_json $data;
		797
		798	for (@$data) {
		799	my ($name, $args) = @$_;
		800
		801	$obj->attach ($name, %{$args \|\| {} });
		802	}
		803	},
		804	on_reattach => \&reattach,
559	on_clone => sub {	805	on_clone => sub {
560	my ($src, $dst) = @_;	806	my ($src, $dst) = @_;
561		807
562	@{$dst->registry} = @{$src->registry};	808	@{$dst->registry} = @{$src->registry};
563		809
564	%$dst = %$src;	810	%$dst = %$src;
565		811
566	%{$dst->{_attachment}} = %{$src->{_attachment}}	812	%{$dst->{_attachment}} = %{$src->{_attachment}}
567	if exists $src->{_attachment};	813	if exists $src->{_attachment};
568	},	814	},
569	;	815	);
		816
		817	sub object_freezer_save {
		818	my ($filename, $rdata, $objs) = @_;
		819
		820	sync_job {
		821	if (length $$rdata) {
		822	warn sprintf "saving %s (%d,%d)\n",
		823	$filename, length $$rdata, scalar @$objs;
		824
		825	if (my $fh = aio_open "$filename~", O_WRONLY \| O_CREAT, 0600) {
		826	chmod SAVE_MODE, $fh;
		827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		828	aio_fsync $fh;
		829	close $fh;
		830
		831	if (@$objs) {
		832	if (my $fh = aio_open "$filename.pst~", O_WRONLY \| O_CREAT, 0600) {
		833	chmod SAVE_MODE, $fh;
		834	my $data = Storable::nfreeze { version => 1, objs => $objs };
		835	aio_write $fh, 0, (length $data), $data, 0;
		836	aio_fsync $fh;
		837	close $fh;
		838	aio_rename "$filename.pst~", "$filename.pst";
		839	}
		840	} else {
		841	aio_unlink "$filename.pst";
		842	}
		843
		844	aio_rename "$filename~", $filename;
		845	} else {
		846	warn "FATAL: $filename~: $!\n";
		847	}
		848	} else {
		849	aio_unlink $filename;
		850	aio_unlink "$filename.pst";
		851	}
		852	}
		853	}
		854
		855	sub object_freezer_as_string {
		856	my ($rdata, $objs) = @_;
		857
		858	use Data::Dumper;
		859
		860	$$rdata . Dumper $objs
		861	}
		862
		863	sub object_thawer_load {
		864	my ($filename) = @_;
		865
		866	my ($data, $av);
		867
		868	(aio_load $filename, $data) >= 0
		869	or return;
		870
		871	unless (aio_stat "$filename.pst") {
		872	(aio_load "$filename.pst", $av) >= 0
		873	or return;
		874	$av = eval { (Storable::thaw $av)->{objs} };
		875	}
		876
		877	warn sprintf "loading %s (%d)\n",
		878	$filename, length $data, scalar @{$av \|\| []};#d#
		879	return ($data, $av);
		880	}
570		881
571	#############################################################################	882	#############################################################################
572	# old plug-in events	883	# command handling &c
573		884
574	sub inject_event {	885	=item cf::register_command $name => \&callback($ob,$args);
575	my $extension = shift;
576	my $event_code = shift;
577		886
578	my $cb = $hook[$event_code]{$extension}	887	Register a callback for execution when the client sends the user command
579	or return;	888	$name.
580		889
581	&$cb	890	=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, $params);
598	}
599
600	-1
601	}
602		891
603	sub register_command {	892	sub register_command {
604	my ($name, $time, $cb) = @_;	893	my ($name, $cb) = @_;
605		894
606	my $caller = caller;	895	my $caller = caller;
607	#warn "registering command '$name/$time' to '$caller'";	896	#warn "registering command '$name/$time' to '$caller'";
608		897
609	push @{ $command{$name} }, [$time, $cb, $caller];	898	push @{ $COMMAND{$name} }, [$caller, $cb];
610	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
611	}	899	}
		900
		901	=item cf::register_extcmd $name => \&callback($pl,$packet);
		902
		903	Register a callbackf ro execution when the client sends an extcmd packet.
		904
		905	If the callback returns something, it is sent back as if reply was being
		906	called.
		907
		908	=cut
612		909
613	sub register_extcmd {	910	sub register_extcmd {
614	my ($name, $cb) = @_;	911	my ($name, $cb) = @_;
615		912
616	my $caller = caller;	913	my $caller = caller;
617	#warn "registering extcmd '$name' to '$caller'";	914	#warn "registering extcmd '$name' to '$caller'";
618		915
619	$extcmd{$name} = [$cb, $caller];	916	$EXTCMD{$name} = [$cb, $caller];
620	}	917	}
		918
		919	cf::player->attach (
		920	on_command => sub {
		921	my ($pl, $name, $params) = @_;
		922
		923	my $cb = $COMMAND{$name}
		924	or return;
		925
		926	for my $cmd (@$cb) {
		927	$cmd->[1]->($pl->ob, $params);
		928	}
		929
		930	cf::override;
		931	},
		932	on_extcmd => sub {
		933	my ($pl, $buf) = @_;
		934
		935	my $msg = eval { from_json $buf };
		936
		937	if (ref $msg) {
		938	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		939	if (my %reply = $cb->[0]->($pl, $msg)) {
		940	$pl->ext_reply ($msg->{msgid}, %reply);
		941	}
		942	}
		943	} else {
		944	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		945	}
		946
		947	cf::override;
		948	},
		949	);
621		950
622	sub register {	951	sub register {
623	my ($base, $pkg) = @_;	952	my ($base, $pkg) = @_;
624		953
625	#TODO	954	#TODO
…		…
668	# for my $idx (0 .. $#PLUGIN_EVENT) {	997	# for my $idx (0 .. $#PLUGIN_EVENT) {
669	# delete $hook[$idx]{$pkg};	998	# delete $hook[$idx]{$pkg};
670	# }	999	# }
671		1000
672	# remove commands	1001	# remove commands
673	for my $name (keys %command) {	1002	for my $name (keys %COMMAND) {
674	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };	1003	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
675		1004
676	if (@cb) {	1005	if (@cb) {
677	$command{$name} = \@cb;	1006	$COMMAND{$name} = \@cb;
678	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
679	} else {	1007	} else {
680	delete $command{$name};
681	delete $COMMAND{"$name\000"};	1008	delete $COMMAND{$name};
682	}	1009	}
683	}	1010	}
684		1011
685	# remove extcmds	1012	# remove extcmds
686	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {	1013	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
687	delete $extcmd{$name};	1014	delete $EXTCMD{$name};
688	}	1015	}
689		1016
690	if (my $cb = $pkg->can ("unload")) {	1017	if (my $cb = $pkg->can ("unload")) {
691	eval {	1018	eval {
692	$cb->($pkg);	1019	$cb->($pkg);
…		…
696		1023
697	Symbol::delete_package $pkg;	1024	Symbol::delete_package $pkg;
698	}	1025	}
699		1026
700	sub load_extensions {	1027	sub load_extensions {
701	my $LIBDIR = maps_directory "perl";
702
703	for my $ext (<$LIBDIR/*.ext>) {	1028	for my $ext (<$LIBDIR/*.ext>) {
704	next unless -r $ext;	1029	next unless -r $ext;
705	eval {	1030	eval {
706	load_extension $ext;	1031	load_extension $ext;
707	1	1032	1
708	} or warn "$ext not loaded: $@";	1033	} or warn "$ext not loaded: $@";
709	}	1034	}
710	}	1035	}
711		1036
712	#############################################################################	1037	#############################################################################
713	# extcmd framework, basically convert ext <msg>
714	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
715
716	attach_to_players
717	on_extcmd => sub {
718	my ($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	1038	# load/save/clean perl data associated with a map
738		1039
739	*cf::mapsupport::on_clean = sub {	1040	*cf::mapsupport::on_clean = sub {
740	my ($map) = @_;	1041	my ($map) = @_;
741		1042
…		…
743	defined $path or return;	1044	defined $path or return;
744		1045
745	unlink "$path.pst";	1046	unlink "$path.pst";
746	};	1047	};
747		1048
748	attach_to_maps prio => -10000, package => cf::mapsupport::;	1049	cf::map->attach (prio => -10000, package => cf::mapsupport::);
749		1050
750	#############################################################################	1051	#############################################################################
751	# load/save perl data associated with player->ob objects	1052	# load/save perl data associated with player->ob objects
752		1053
753	sub all_objects(@) {	1054	sub all_objects(@) {
754	@_, map all_objects ($_->inv), @_	1055	@_, map all_objects ($_->inv), @_
755	}	1056	}
756		1057
757	# TODO: compatibility cruft, remove when no longer needed	1058	# TODO: compatibility cruft, remove when no longer needed
758	attach_to_players	1059	cf::player->attach (
759	on_load => sub {	1060	on_load => sub {
760	my ($pl, $path) = @_;	1061	my ($pl, $path) = @_;
761		1062
762	for my $o (all_objects $pl->ob) {	1063	for my $o (all_objects $pl->ob) {
763	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1064	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
765		1066
766	%$o = %{ Storable::thaw pack "H*", $value };	1067	%$o = %{ Storable::thaw pack "H*", $value };
767	}	1068	}
768	}	1069	}
769	},	1070	},
770	;	1071	);
771		1072
772	#############################################################################	1073	#############################################################################
773		1074
774	=head2 CORE EXTENSIONS	1075	=head2 CORE EXTENSIONS
775		1076
776	Functions and methods that extend core crossfire objects.	1077	Functions and methods that extend core crossfire objects.
		1078
		1079	=head3 cf::player
777		1080
778	=over 4	1081	=over 4
779		1082
780	=item cf::player::exists $login	1083	=item cf::player::exists $login
781		1084
…		…
786	sub cf::player::exists($) {	1089	sub cf::player::exists($) {
787	cf::player::find $_[0]	1090	cf::player::find $_[0]
788	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1091	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
789	}	1092	}
790		1093
		1094	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1095
		1096	Sends an ext reply to the player.
		1097
		1098	=cut
		1099
		1100	sub cf::player::ext_reply($$$%) {
		1101	my ($self, $id, %msg) = @_;
		1102
		1103	$msg{msgid} = $id;
		1104
		1105	$self->send ("ext " . to_json \%msg);
		1106	}
		1107
		1108	=back
		1109
		1110
		1111	=head3 cf::map
		1112
		1113	=over 4
		1114
		1115	=cut
		1116
		1117	package cf::map;
		1118
		1119	use Fcntl;
		1120	use Coro::AIO;
		1121
		1122	our $MAX_RESET = 3600;
		1123	our $DEFAULT_RESET = 3000;
		1124
		1125	sub generate_random_map {
		1126	my ($path, $rmp) = @_;
		1127
		1128	# mit "rum" bekleckern, nicht
		1129	cf::map::_create_random_map
		1130	$path,
		1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1134	$rmp->{exit_on_final_map},
		1135	$rmp->{xsize}, $rmp->{ysize},
		1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1139	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1141	(cf::region::find $rmp->{region})
		1142	}
		1143
		1144	# and all this just because we cannot iterate over
		1145	# all maps in C++...
		1146	sub change_all_map_light {
		1147	my ($change) = @_;
		1148
		1149	$_->change_map_light ($change)
		1150	for grep $_->outdoor, values %cf::MAP;
		1151	}
		1152
		1153	sub try_load_header($) {
		1154	my ($path) = @_;
		1155
		1156	utf8::encode $path;
		1157	aio_open $path, O_RDONLY, 0
		1158	or return;
		1159
		1160	my $map = cf::map::new
		1161	or return;
		1162
		1163	# for better error messages only, will be overwritten
		1164	$map->path ($path);
		1165
		1166	$map->load_header ($path)
		1167	or return;
		1168
		1169	$map->{load_path} = $path;
		1170
		1171	$map
		1172	}
		1173
		1174	sub find;
		1175	sub find {
		1176	my ($path, $origin) = @_;
		1177
		1178	#warn "find<$path,$origin>\n";#d#
		1179
		1180	$path = new cf::path $path, $origin && $origin->path;
		1181	my $key = $path->as_string;
		1182
		1183	cf::lock_wait "map_find:$key";
		1184
		1185	$cf::MAP{$key} \|\| do {
		1186	my $guard = cf::lock_acquire "map_find:$key";
		1187
		1188	# do it the slow way
		1189	my $map = try_load_header $path->save_path;
		1190
		1191	Coro::cede;
		1192
		1193	if ($map) {
		1194	$map->last_access ((delete $map->{last_access})
		1195	\|\| $cf::RUNTIME); #d#
		1196	# safety
		1197	$map->{instantiate_time} = $cf::RUNTIME
		1198	if $map->{instantiate_time} > $cf::RUNTIME;
		1199	} else {
		1200	if (my $rmp = $path->random_map_params) {
		1201	$map = generate_random_map $key, $rmp;
		1202	} else {
		1203	$map = try_load_header $path->load_path;
		1204	}
		1205
		1206	$map or return;
		1207
		1208	$map->{load_original} = 1;
		1209	$map->{instantiate_time} = $cf::RUNTIME;
		1210	$map->last_access ($cf::RUNTIME);
		1211	$map->instantiate;
		1212
		1213	# per-player maps become, after loading, normal maps
		1214	$map->per_player (0) if $path->{user_rel};
		1215	}
		1216
		1217	$map->path ($key);
		1218	$map->{path} = $path;
		1219	$map->{last_save} = $cf::RUNTIME;
		1220
		1221	Coro::cede;
		1222
		1223	if ($map->should_reset) {
		1224	$map->reset;
		1225	undef $guard;
		1226	$map = find $path
		1227	or return;
		1228	}
		1229
		1230	$cf::MAP{$key} = $map
		1231	}
		1232	}
		1233
		1234	sub load {
		1235	my ($self) = @_;
		1236
		1237	my $path = $self->{path};
		1238	my $guard = cf::lock_acquire "map_load:" . $path->as_string;
		1239
		1240	return if $self->in_memory != cf::MAP_SWAPPED;
		1241
		1242	$self->in_memory (cf::MAP_LOADING);
		1243
		1244	$self->alloc;
		1245	$self->load_objects ($self->{load_path}, 1)
		1246	or return;
		1247
		1248	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1249	if delete $self->{load_original};
		1250
		1251	if (my $uniq = $path->uniq_path) {
		1252	utf8::encode $uniq;
		1253	if (aio_open $uniq, O_RDONLY, 0) {
		1254	$self->clear_unique_items;
		1255	$self->load_objects ($uniq, 0);
		1256	}
		1257	}
		1258
		1259	Coro::cede;
		1260
		1261	# now do the right thing for maps
		1262	$self->link_multipart_objects;
		1263
		1264	if ($self->{path}->is_style_map) {
		1265	$self->{deny_save} = 1;
		1266	$self->{deny_reset} = 1;
		1267	} else {
		1268	$self->fix_auto_apply;
		1269	$self->decay_objects;
		1270	$self->update_buttons;
		1271	$self->set_darkness_map;
		1272	$self->difficulty ($self->estimate_difficulty)
		1273	unless $self->difficulty;
		1274	$self->activate;
		1275	}
		1276
		1277	Coro::cede;
		1278
		1279	$self->in_memory (cf::MAP_IN_MEMORY);
		1280	}
		1281
		1282	sub find_sync {
		1283	my ($path, $origin) = @_;
		1284
		1285	cf::sync_job { cf::map::find $path, $origin }
		1286	}
		1287
		1288	sub do_load_sync {
		1289	my ($map) = @_;
		1290
		1291	cf::sync_job { $map->load };
		1292	}
		1293
		1294	sub save {
		1295	my ($self) = @_;
		1296
		1297	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1298
		1299	$self->{last_save} = $cf::RUNTIME;
		1300
		1301	return unless $self->dirty;
		1302
		1303	my $save = $self->{path}->save_path; utf8::encode $save;
		1304	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1305
		1306	$self->{load_path} = $save;
		1307
		1308	return if $self->{deny_save};
		1309
		1310	local $self->{last_access} = $self->last_access;#d#
		1311
		1312	if ($uniq) {
		1313	$self->save_objects ($save, cf::IO_HEADER \| cf::IO_OBJECTS);
		1314	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1315	} else {
		1316	$self->save_objects ($save, cf::IO_HEADER \| cf::IO_OBJECTS \| cf::IO_UNIQUES);
		1317	}
		1318	}
		1319
		1320	sub swap_out {
		1321	my ($self) = @_;
		1322
		1323	# save first because save cedes
		1324	$self->save;
		1325
		1326	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1327
		1328	return if $self->players;
		1329	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1330	return if $self->{deny_save};
		1331
		1332	$self->clear;
		1333	$self->in_memory (cf::MAP_SWAPPED);
		1334	}
		1335
		1336	sub reset_at {
		1337	my ($self) = @_;
		1338
		1339	# TODO: safety, remove and allow resettable per-player maps
		1340	return 1e99 if $self->{path}{user_rel};
		1341	return 1e99 if $self->{deny_reset};
		1342
		1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;
		1345
		1346	$time + $to
		1347	}
		1348
		1349	sub should_reset {
		1350	my ($self) = @_;
		1351
		1352	$self->reset_at <= $cf::RUNTIME
		1353	}
		1354
		1355	sub unlink_save {
		1356	my ($self) = @_;
		1357
		1358	utf8::encode (my $save = $self->{path}->save_path);
		1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1361	}
		1362
		1363	sub rename {
		1364	my ($self, $new_path) = @_;
		1365
		1366	$self->unlink_save;
		1367
		1368	delete $cf::MAP{$self->path};
		1369	$self->{path} = new cf::path $new_path;
		1370	$self->path ($self->{path}->as_string);
		1371	$cf::MAP{$self->path} = $self;
		1372
		1373	$self->save;
		1374	}
		1375
		1376	sub reset {
		1377	my ($self) = @_;
		1378
		1379	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1380
		1381	return if $self->players;
		1382	return if $self->{path}{user_rel};#d#
		1383
		1384	warn "resetting map ", $self->path;#d#
		1385
		1386	delete $cf::MAP{$self->path};
		1387
		1388	$_->clear_links_to ($self) for values %cf::MAP;
		1389
		1390	$self->unlink_save;
		1391	$self->destroy;
		1392	}
		1393
		1394	my $nuke_counter = "aaaa";
		1395
		1396	sub nuke {
		1397	my ($self) = @_;
		1398
		1399	$self->{deny_save} = 1;
		1400	$self->reset_timeout (1);
		1401	$self->rename ("{nuke}/" . ($nuke_counter++));
		1402	$self->reset; # polite request, might not happen
		1403	}
		1404
		1405	sub customise_for {
		1406	my ($map, $ob) = @_;
		1407
		1408	if ($map->per_player) {
		1409	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
		1410	}
		1411
		1412	$map
		1413	}
		1414
		1415	sub emergency_save {
		1416	my $freeze_guard = cf::freeze_mainloop;
		1417
		1418	warn "enter emergency map save\n";
		1419
		1420	cf::sync_job {
		1421	warn "begin emergency map save\n";
		1422	$_->save for values %cf::MAP;
		1423	};
		1424
		1425	warn "end emergency map save\n";
		1426	}
		1427
		1428	package cf;
		1429
		1430	=back
		1431
		1432
		1433	=head3 cf::object::player
		1434
		1435	=over 4
		1436
791	=item $player_object->reply ($npc, $msg[, $flags])	1437	=item $player_object->reply ($npc, $msg[, $flags])
792		1438
793	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1439	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	1440	can be C<undef>. Does the right thing when the player is currently in a
795	dialogue with the given NPC character.	1441	dialogue with the given NPC character.
796		1442
797	=cut	1443	=cut
798		1444
799	# rough implementation of a future "reply" method that works	1445	# rough implementation of a future "reply" method that works
800	# with dialog boxes.	1446	# with dialog boxes.
		1447	#TODO: the first argument must go, split into a $npc->reply_to ( method
801	sub cf::object::player::reply($$$;$) {	1448	sub cf::object::player::reply($$$;$) {
802	my ($self, $npc, $msg, $flags) = @_;	1449	my ($self, $npc, $msg, $flags) = @_;
803		1450
804	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;	1451	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;
805		1452
…		…
809	$msg = $npc->name . " says: $msg" if $npc;	1456	$msg = $npc->name . " says: $msg" if $npc;
810	$self->message ($msg, $flags);	1457	$self->message ($msg, $flags);
811	}	1458	}
812	}	1459	}
813		1460
814	=item $player->ext_reply ($msgid, $msgtype, %msg)
815
816	Sends an ext reply to the player.
817
818	=cut
819
820	sub cf::player::ext_reply($$$%) {
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")	1461	=item $player_object->may ("access")
829		1462
830	Returns wether the given player is authorized to access resource "access"	1463	Returns wether the given player is authorized to access resource "access"
831	(e.g. "command_wizcast").	1464	(e.g. "command_wizcast").
832		1465
…		…
839	(ref $cf::CFG{"may_$access"}	1472	(ref $cf::CFG{"may_$access"}
840	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1473	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
841	: $cf::CFG{"may_$access"})	1474	: $cf::CFG{"may_$access"})
842	}	1475	}
843		1476
844	=cut	1477	=item $player_object->enter_link
845		1478
846	#############################################################################	1479	Freezes the player and moves him/her to a special map (C<{link}>).
		1480
		1481	The player should be reaosnably safe there for short amounts of time. You
		1482	I<MUST> call C<leave_link> as soon as possible, though.
		1483
		1484	=item $player_object->leave_link ($map, $x, $y)
		1485
		1486	Moves the player out of the specila link map onto the given map. If the
		1487	map is not valid (or omitted), the player will be moved back to the
		1488	location he/she was before the call to C<enter_link>, or, if that fails,
		1489	to the emergency map position.
		1490
		1491	Might block.
		1492
		1493	=cut
		1494
		1495	sub cf::object::player::enter_link {
		1496	my ($self) = @_;
		1497
		1498	$self->deactivate_recursive;
		1499
		1500	return if $self->map == $LINK_MAP;
		1501
		1502	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]
		1503	if $self->map;
		1504
		1505	$self->enter_map ($LINK_MAP, 20, 20);
		1506	}
		1507
		1508	sub cf::object::player::leave_link {
		1509	my ($self, $map, $x, $y) = @_;
		1510
		1511	my $link_pos = delete $self->{_link_pos};
		1512
		1513	unless ($map) {
		1514	# restore original map position
		1515	($map, $x, $y) = @{ $link_pos \|\| [] };
		1516	$map = cf::map::find $map;
		1517
		1518	unless ($map) {
		1519	($map, $x, $y) = @$EMERGENCY_POSITION;
		1520	$map = cf::map::find $map
		1521	or die "FATAL: cannot load emergency map\n";
		1522	}
		1523	}
		1524
		1525	($x, $y) = (-1, -1)
		1526	unless (defined $x) && (defined $y);
		1527
		1528	# use -1 or undef as default coordinates, not 0, 0
		1529	($x, $y) = ($map->enter_x, $map->enter_y)
		1530	if $x <=0 && $y <= 0;
		1531
		1532	$map->load;
		1533
		1534	$self->activate_recursive;
		1535	$self->enter_map ($map, $x, $y);
		1536	}
		1537
		1538	cf::player->attach (
		1539	on_logout => sub {
		1540	my ($pl) = @_;
		1541
		1542	# abort map switching before logout
		1543	if ($pl->ob->{_link_pos}) {
		1544	cf::sync_job {
		1545	$pl->ob->leave_link
		1546	};
		1547	}
		1548	},
		1549	on_login => sub {
		1550	my ($pl) = @_;
		1551
		1552	# try to abort aborted map switching on player login :)
		1553	# should happen only on crashes
		1554	if ($pl->ob->{_link_pos}) {
		1555
		1556	$pl->ob->enter_link;
		1557	(async {
		1558	# we need this sleep as the login has a concurrent enter_exit running
		1559	# and this sleep increases chances of the player not ending up in scorn
		1560	$pl->ob->reply (undef,
		1561	"There was an internal problem at your last logout, "
		1562	. "the server will try to bring you to your intended destination in a second.",
		1563	cf::NDI_RED);
		1564	Coro::Timer::sleep 1;
		1565	$pl->ob->leave_link;
		1566	})->prio (2);
		1567	}
		1568	},
		1569	);
		1570
		1571	=item $player_object->goto ($path, $x, $y)
		1572
		1573	=cut
		1574
		1575	sub cf::object::player::goto {
		1576	my ($self, $path, $x, $y) = @_;
		1577
		1578	$self->enter_link;
		1579
		1580	(async {
		1581	$path = new cf::path $path;
		1582
		1583	my $map = cf::map::find $path->as_string;
		1584	$map = $map->customise_for ($self) if $map;
		1585
		1586	# warn "entering ", $map->path, " at ($x, $y)\n"
		1587	# if $map;
		1588
		1589	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
		1590
		1591	$self->leave_link ($map, $x, $y);
		1592	})->prio (1);
		1593	}
		1594
		1595	=item $player_object->enter_exit ($exit_object)
		1596
		1597	=cut
		1598
		1599	sub parse_random_map_params {
		1600	my ($spec) = @_;
		1601
		1602	my $rmp = { # defaults
		1603	xsize => 10,
		1604	ysize => 10,
		1605	};
		1606
		1607	for (split /\n/, $spec) {
		1608	my ($k, $v) = split /\s+/, $_, 2;
		1609
		1610	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1611	}
		1612
		1613	$rmp
		1614	}
		1615
		1616	sub prepare_random_map {
		1617	my ($exit) = @_;
		1618
		1619	# all this does is basically replace the /! path by
		1620	# a new random map path (?random/...) with a seed
		1621	# that depends on the exit object
		1622
		1623	my $rmp = parse_random_map_params $exit->msg;
		1624
		1625	if ($exit->map) {
		1626	$rmp->{region} = $exit->map->region_name;
		1627	$rmp->{origin_map} = $exit->map->path;
		1628	$rmp->{origin_x} = $exit->x;
		1629	$rmp->{origin_y} = $exit->y;
		1630	}
		1631
		1632	$rmp->{random_seed} \|\|= $exit->random_seed;
		1633
		1634	my $data = cf::to_json $rmp;
		1635	my $md5 = Digest::MD5::md5_hex $data;
		1636
		1637	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY \| O_CREAT, 0666) {
		1638	aio_write $fh, 0, (length $data), $data, 0;
		1639
		1640	$exit->slaying ("?random/$md5");
		1641	$exit->msg (undef);
		1642	}
		1643	}
		1644
		1645	sub cf::object::player::enter_exit {
		1646	my ($self, $exit) = @_;
		1647
		1648	return unless $self->type == cf::PLAYER;
		1649
		1650	$self->enter_link;
		1651
		1652	(async {
		1653	$self->deactivate_recursive; # just to be sure
		1654	unless (eval {
		1655	prepare_random_map $exit
		1656	if $exit->slaying eq "/!";
		1657
		1658	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1659	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1660
		1661	1;
		1662	}) {
		1663	$self->message ("Something went wrong deep within the crossfire server. "
		1664	. "I'll try to bring you back to the map you were before. "
		1665	. "Please report this to the dungeon master",
		1666	cf::NDI_UNIQUE \| cf::NDI_RED);
		1667
		1668	warn "ERROR in enter_exit: $@";
		1669	$self->leave_link;
		1670	}
		1671	})->prio (1);
		1672	}
		1673
		1674	=head3 cf::client
		1675
		1676	=over 4
		1677
		1678	=item $client->send_drawinfo ($text, $flags)
		1679
		1680	Sends a drawinfo packet to the client. Circumvents output buffering so
		1681	should not be used under normal circumstances.
		1682
		1683	=cut
		1684
		1685	sub cf::client::send_drawinfo {
		1686	my ($self, $text, $flags) = @_;
		1687
		1688	utf8::encode $text;
		1689	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1690	}
		1691
		1692
		1693	=item $success = $client->query ($flags, "text", \&cb)
		1694
		1695	Queues a query to the client, calling the given callback with
		1696	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1697	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1698
		1699	Queries can fail, so check the return code. Or don't, as queries will become
		1700	reliable at some point in the future.
		1701
		1702	=cut
		1703
		1704	sub cf::client::query {
		1705	my ($self, $flags, $text, $cb) = @_;
		1706
		1707	return unless $self->state == ST_PLAYING
		1708	\|\| $self->state == ST_SETUP
		1709	\|\| $self->state == ST_CUSTOM;
		1710
		1711	$self->state (ST_CUSTOM);
		1712
		1713	utf8::encode $text;
		1714	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1715
		1716	$self->send_packet ($self->{query_queue}[0][0])
		1717	if @{ $self->{query_queue} } == 1;
		1718	}
		1719
		1720	cf::client->attach (
		1721	on_reply => sub {
		1722	my ($ns, $msg) = @_;
		1723
		1724	# this weird shuffling is so that direct followup queries
		1725	# get handled first
		1726	my $queue = delete $ns->{query_queue}
		1727	or return; # be conservative, not sure how that can happen, but we saw a crash here
		1728
		1729	(shift @$queue)->[1]->($msg);
		1730
		1731	push @{ $ns->{query_queue} }, @$queue;
		1732
		1733	if (@{ $ns->{query_queue} } == @$queue) {
		1734	if (@$queue) {
		1735	$ns->send_packet ($ns->{query_queue}[0][0]);
		1736	} else {
		1737	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1738	}
		1739	}
		1740	},
		1741	);
		1742
		1743	=item $client->async (\&cb)
		1744
		1745	Create a new coroutine, running the specified callback. The coroutine will
		1746	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1747	or loss of connection).
		1748
		1749	=cut
		1750
		1751	sub cf::client::async {
		1752	my ($self, $cb) = @_;
		1753
		1754	my $coro = &Coro::async ($cb);
		1755
		1756	$coro->on_destroy (sub {
		1757	delete $self->{_coro}{$coro+0};
		1758	});
		1759
		1760	$self->{_coro}{$coro+0} = $coro;
		1761
		1762	$coro
		1763	}
		1764
		1765	cf::client->attach (
		1766	on_destroy => sub {
		1767	my ($ns) = @_;
		1768
		1769	$_->cancel for values %{ (delete $ns->{_coro}) \|\| {} };
		1770	},
		1771	);
		1772
		1773	=back
		1774
847		1775
848	=head2 SAFE SCRIPTING	1776	=head2 SAFE SCRIPTING
849		1777
850	Functions that provide a safe environment to compile and execute	1778	Functions that provide a safe environment to compile and execute
851	snippets of perl code without them endangering the safety of the server	1779	snippets of perl code without them endangering the safety of the server
…		…
866		1794
867	=pod	1795	=pod
868		1796
869	The following fucntions and emthods are available within a safe environment:	1797	The following fucntions and emthods are available within a safe environment:
870		1798
871	cf::object contr pay_amount pay_player	1799	cf::object contr pay_amount pay_player map
872	cf::object::player player	1800	cf::object::player player
873	cf::player peaceful	1801	cf::player peaceful
		1802	cf::map trigger
874		1803
875	=cut	1804	=cut
876		1805
877	for (	1806	for (
878	["cf::object" => qw(contr pay_amount pay_player)],	1807	["cf::object" => qw(contr pay_amount pay_player map)],
879	["cf::object::player" => qw(player)],	1808	["cf::object::player" => qw(player)],
880	["cf::player" => qw(peaceful)],	1809	["cf::player" => qw(peaceful)],
		1810	["cf::map" => qw(trigger)],
881	) {	1811	) {
882	no strict 'refs';	1812	no strict 'refs';
883	my ($pkg, @funs) = @$_;	1813	my ($pkg, @funs) = @$_;
884	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1814	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
885	for @funs;	1815	for @funs;
…		…
1001		1931
1002	{	1932	{
1003	my $path = cf::localdir . "/database.pst";	1933	my $path = cf::localdir . "/database.pst";
1004		1934
1005	sub db_load() {	1935	sub db_load() {
1006	warn "loading database $path\n";#d# remove later
1007	$DB = stat $path ? Storable::retrieve $path : { };	1936	$DB = stat $path ? Storable::retrieve $path : { };
1008	}	1937	}
1009		1938
1010	my $pid;	1939	my $pid;
1011		1940
1012	sub db_save() {	1941	sub db_save() {
1013	warn "saving database $path\n";#d# remove later
1014	waitpid $pid, 0 if $pid;	1942	waitpid $pid, 0 if $pid;
1015	if (0 == ($pid = fork)) {	1943	if (0 == ($pid = fork)) {
1016	$DB->{_meta}{version} = 1;	1944	$DB->{_meta}{version} = 1;
1017	Storable::nstore $DB, "$path~";	1945	Storable::nstore $DB, "$path~";
1018	rename "$path~", $path;	1946	rename "$path~", $path;
…		…
1025	sub db_sync() {	1953	sub db_sync() {
1026	db_save if $dirty;	1954	db_save if $dirty;
1027	undef $dirty;	1955	undef $dirty;
1028	}	1956	}
1029		1957
1030	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	1958	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1031	db_sync;	1959	db_sync;
1032	});	1960	});
1033		1961
1034	sub db_dirty() {	1962	sub db_dirty() {
1035	$dirty = 1;	1963	$dirty = 1;
…		…
1049	$DB->{$_[0]} = $_[1];	1977	$DB->{$_[0]} = $_[1];
1050	}	1978	}
1051	db_dirty;	1979	db_dirty;
1052	}	1980	}
1053		1981
1054	attach_global	1982	cf::global->attach (
1055	prio => 10000,	1983	prio => 10000,
1056	on_cleanup => sub {	1984	on_cleanup => sub {
1057	db_sync;	1985	db_sync;
1058	},	1986	},
1059	;	1987	);
1060	}	1988	}
1061		1989
1062	#############################################################################	1990	#############################################################################
1063	# the server's main()	1991	# the server's main()
1064		1992
…		…
1066	open my $fh, "<:utf8", cf::confdir . "/config"	1994	open my $fh, "<:utf8", cf::confdir . "/config"
1067	or return;	1995	or return;
1068		1996
1069	local $/;	1997	local $/;
1070	*CFG = YAML::Syck::Load <$fh>;	1998	*CFG = YAML::Syck::Load <$fh>;
		1999
		2000	$EMERGENCY_POSITION = $CFG{emergency_position} \|\| ["/world/world_105_115", 5, 37];
		2001
		2002	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2003	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2004
		2005	if (exists $CFG{mlockall}) {
		2006	eval {
		2007	$CFG{mlockall} ? &mlockall : &munlockall
		2008	and die "WARNING: m(un)lockall failed: $!\n";
		2009	};
		2010	warn $@ if $@;
		2011	}
1071	}	2012	}
1072		2013
1073	sub main {	2014	sub main {
		2015	# we must not ever block the main coroutine
		2016	local $Coro::idle = sub {
		2017	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2018	async { Event::one_event };
		2019	};
		2020
1074	cfg_load;	2021	cfg_load;
1075	db_load;	2022	db_load;
1076	load_extensions;	2023	load_extensions;
1077	Event::loop;	2024	Event::loop;
1078	}	2025	}
1079		2026
1080	#############################################################################	2027	#############################################################################
1081	# initialisation	2028	# initialisation
1082		2029
1083	sub _perl_reload(&) {	2030	sub reload() {
1084	my ($msg) = @_;	2031	# can/must only be called in main
		2032	if ($Coro::current != $Coro::main) {
		2033	warn "can only reload from main coroutine\n";
		2034	return;
		2035	}
1085		2036
1086	$msg->("reloading...");	2037	warn "reloading...";
		2038
		2039	my $guard = freeze_mainloop;
		2040	cf::emergency_save;
1087		2041
1088	eval {	2042	eval {
		2043	# if anything goes wrong in here, we should simply crash as we already saved
		2044
1089	# cancel all watchers	2045	# cancel all watchers
1090	$_->cancel for Event::all_watchers;	2046	for (Event::all_watchers) {
		2047	$_->cancel if $_->data & WF_AUTOCANCEL;
		2048	}
		2049
		2050	# cancel all extension coros
		2051	$_->cancel for values %EXT_CORO;
		2052	%EXT_CORO = ();
1091		2053
1092	# unload all extensions	2054	# unload all extensions
1093	for (@exts) {	2055	for (@exts) {
1094	$msg->("unloading <$_>");	2056	warn "unloading <$_>";
1095	unload_extension $_;	2057	unload_extension $_;
1096	}	2058	}
1097		2059
1098	# unload all modules loaded from $LIBDIR	2060	# unload all modules loaded from $LIBDIR
1099	while (my ($k, $v) = each %INC) {	2061	while (my ($k, $v) = each %INC) {
1100	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2062	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1101		2063
1102	$msg->("removing <$k>");	2064	warn "removing <$k>";
1103	delete $INC{$k};	2065	delete $INC{$k};
1104		2066
1105	$k =~ s/\.pm$//;	2067	$k =~ s/\.pm$//;
1106	$k =~ s/\//::/g;	2068	$k =~ s/\//::/g;
1107		2069
…		…
1112	Symbol::delete_package $k;	2074	Symbol::delete_package $k;
1113	}	2075	}
1114		2076
1115	# sync database to disk	2077	# sync database to disk
1116	cf::db_sync;	2078	cf::db_sync;
		2079	IO::AIO::flush;
1117		2080
1118	# get rid of safe::, as good as possible	2081	# get rid of safe::, as good as possible
1119	Symbol::delete_package "safe::$_"	2082	Symbol::delete_package "safe::$_"
1120	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2083	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1121		2084
1122	# remove register_script_function callbacks	2085	# remove register_script_function callbacks
1123	# TODO	2086	# TODO
1124		2087
1125	# unload cf.pm "a bit"	2088	# unload cf.pm "a bit"
…		…
1128	# don't, removes xs symbols, too,	2091	# don't, removes xs symbols, too,
1129	# and global variables created in xs	2092	# and global variables created in xs
1130	#Symbol::delete_package __PACKAGE__;	2093	#Symbol::delete_package __PACKAGE__;
1131		2094
1132	# reload cf.pm	2095	# reload cf.pm
1133	$msg->("reloading cf.pm");	2096	warn "reloading cf.pm";
1134	require cf;	2097	require cf;
		2098	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1135		2099
1136	# load config and database again	2100	# load config and database again
1137	cf::cfg_load;	2101	cf::cfg_load;
1138	cf::db_load;	2102	cf::db_load;
1139		2103
1140	# load extensions	2104	# load extensions
1141	$msg->("load extensions");	2105	warn "load extensions";
1142	cf::load_extensions;	2106	cf::load_extensions;
1143		2107
1144	# reattach attachments to objects	2108	# reattach attachments to objects
1145	$msg->("reattach");	2109	warn "reattach";
1146	_global_reattach;	2110	_global_reattach;
1147	};	2111	};
1148	$msg->($@) if $@;
1149		2112
1150	$msg->("reloaded");	2113	if ($@) {
		2114	warn $@;
		2115	warn "error while reloading, exiting.";
		2116	exit 1;
		2117	}
		2118
		2119	warn "reloaded successfully";
1151	};	2120	};
1152		2121
1153	sub perl_reload() {	2122	#############################################################################
1154	_perl_reload {
1155	warn $_[0];
1156	print "$_[0]\n";
1157	};
1158	}
1159		2123
		2124	unless ($LINK_MAP) {
		2125	$LINK_MAP = cf::map::new;
		2126
		2127	$LINK_MAP->width (41);
		2128	$LINK_MAP->height (41);
		2129	$LINK_MAP->alloc;
		2130	$LINK_MAP->path ("{link}");
		2131	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2132	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2133
		2134	# dirty hack because... archetypes are not yet loaded
		2135	Event->timer (
		2136	after => 2,
		2137	cb => sub {
		2138	$_[0]->w->cancel;
		2139
		2140	# provide some exits "home"
		2141	my $exit = cf::object::new "exit";
		2142
		2143	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2144	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2145	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2146
		2147	$LINK_MAP->insert ($exit->clone, 19, 19);
		2148	$LINK_MAP->insert ($exit->clone, 19, 20);
		2149	$LINK_MAP->insert ($exit->clone, 19, 21);
		2150	$LINK_MAP->insert ($exit->clone, 20, 19);
		2151	$LINK_MAP->insert ($exit->clone, 20, 21);
		2152	$LINK_MAP->insert ($exit->clone, 21, 19);
		2153	$LINK_MAP->insert ($exit->clone, 21, 20);
		2154	$LINK_MAP->insert ($exit->clone, 21, 21);
		2155
		2156	$exit->destroy;
		2157	});
		2158
		2159	$LINK_MAP->{deny_save} = 1;
		2160	$LINK_MAP->{deny_reset} = 1;
		2161
		2162	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
		2163	}
		2164
		2165	register "<global>", __PACKAGE__;
		2166
1160	register_command "perl-reload", 0, sub {	2167	register_command "reload" => sub {
1161	my ($who, $arg) = @_;	2168	my ($who, $arg) = @_;
1162		2169
1163	if ($who->flag (FLAG_WIZ)) {	2170	if ($who->flag (FLAG_WIZ)) {
1164	_perl_reload {	2171	$who->message ("start of reload.");
1165	warn $_[0];	2172	reload;
1166	$who->message ($_[0]);	2173	$who->message ("end of reload.");
1167	};
1168	}	2174	}
1169	};	2175	};
1170		2176
1171	register "<global>", __PACKAGE__;
1172
1173	unshift @INC, $LIBDIR;	2177	unshift @INC, $LIBDIR;
1174		2178
1175	$TICK_WATCHER = Event->timer (	2179	$TICK_WATCHER = Event->timer (
		2180	reentrant => 0,
1176	prio => 1,	2181	prio => 0,
1177	async => 1,
1178	at => $NEXT_TICK \|\| 1,	2182	at => $NEXT_TICK \|\| $TICK,
		2183	data => WF_AUTOCANCEL,
1179	cb => sub {	2184	cb => sub {
1180	cf::server_tick; # one server iteration	2185	cf::server_tick; # one server iteration
1181		2186	$RUNTIME += $TICK;
1182	my $NOW = Event::time;
1183	$NEXT_TICK += $TICK;	2187	$NEXT_TICK += $TICK;
1184		2188
1185	# if we are delayed by four ticks or more, skip them all	2189	# if we are delayed by four ticks or more, skip them all
1186	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2190	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1187		2191
1188	$TICK_WATCHER->at ($NEXT_TICK);	2192	$TICK_WATCHER->at ($NEXT_TICK);
1189	$TICK_WATCHER->start;	2193	$TICK_WATCHER->start;
1190	},	2194	},
1191	);	2195	);
1192		2196
1193	IO::AIO::max_poll_time $TICK * 0.2;	2197	IO::AIO::max_poll_time $TICK * 0.2;
1194		2198
		2199	Event->io (
1195	Event->io (fd => IO::AIO::poll_fileno,	2200	fd => IO::AIO::poll_fileno,
1196	poll => 'r',	2201	poll => 'r',
1197	prio => 5,	2202	prio => 5,
		2203	data => WF_AUTOCANCEL,
1198	cb => \&IO::AIO::poll_cb);	2204	cb => \&IO::AIO::poll_cb,
		2205	);
		2206
		2207	Event->timer (
		2208	data => WF_AUTOCANCEL,
		2209	after => 0,
		2210	interval => 10,
		2211	cb => sub {
		2212	(Coro::unblock_sub {
		2213	write_runtime
		2214	or warn "ERROR: unable to write runtime file: $!";
		2215	})->();
		2216	},
		2217	);
		2218
		2219	END { cf::emergency_save }
1199		2220
1200	1	2221	1
1201		2222

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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 1.140 by root, Fri Jan 5 20:04:02 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 1.140 by root, Fri Jan 5 20:04:02 2007 UTC