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

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.83 by root, Mon Dec 11 01:30:41 2006 UTC vs.
Revision 1.101 by root, Mon Dec 25 14:43:23 2006 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;
		14	use Coro::Event;
		15	use Coro::Timer;
		16	use Coro::Signal;
		17	use Coro::Semaphore;
		18
10	use IO::AIO ();	19	use IO::AIO 2.3;
11	use YAML::Syck ();	20	use YAML::Syck ();
12	use Time::HiRes;	21	use Time::HiRes;
13	use Event;	22
14	$Event::Eval = 1; # no idea why this is required, but it is	23	use Event; $Event::Eval = 1; # no idea why this is required, but it is
15		24
16	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	25	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
17	$YAML::Syck::ImplicitUnicode = 1;	26	$YAML::Syck::ImplicitUnicode = 1;
18		27
19	use strict;	28	$Coro::main->prio (Coro::PRIO_MIN);
20		29
21	_init_vars;	30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
22		31
23	our %COMMAND = ();	32	our %COMMAND = ();
		33	our %COMMAND_TIME = ();
		34	our %EXTCMD = ();
		35
24	our @EVENT;	36	our @EVENT;
25	our $LIBDIR = maps_directory "perl";	37	our $LIBDIR = datadir . "/ext";
26		38
27	our $TICK = MAX_TIME * 1e-6;	39	our $TICK = MAX_TIME * 1e-6;
28	our $TICK_WATCHER;	40	our $TICK_WATCHER;
29	our $NEXT_TICK;	41	our $NEXT_TICK;
30		42
31	our %CFG;	43	our %CFG;
32		44
33	our $uptime;#d#	45	our $UPTIME; $UPTIME \|\|= time;
34	our $UPTIME;
35	$UPTIME \|\|= $uptime;#d#
36	$UPTIME \|\|= time;
37		46
38	#############################################################################	47	#############################################################################
39		48
40	=head2 GLOBAL VARIABLES	49	=head2 GLOBAL VARIABLES
41		50
72	print STDERR "cfperl: $msg";	81	print STDERR "cfperl: $msg";
73	LOG llevError, "cfperl: $msg";	82	LOG llevError, "cfperl: $msg";
74	};	83	};
75	}	84	}
76		85
		86	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
		87	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
		88	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
		89	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
		90	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
77	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	91	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
78		92
79	# we bless all objects into (empty) derived classes to force a method lookup	93	# we bless all objects into (empty) derived classes to force a method lookup
80	# within the Safe compartment.	94	# within the Safe compartment.
81	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {	95	for my $pkg (qw(
		96	cf::global cf::attachable
		97	cf::object cf::object::player
		98	cf::client cf::player
		99	cf::arch cf::living
		100	cf::map cf::party cf::region
		101	)) {
82	no strict 'refs';	102	no strict 'refs';
83	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	103	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
84	}	104	}
85		105
86	$Event::DIED = sub {	106	$Event::DIED = sub {
…		…
88	};	108	};
89		109
90	my %ext_pkg;	110	my %ext_pkg;
91	my @exts;	111	my @exts;
92	my @hook;	112	my @hook;
93	my %command;
94	my %extcmd;
95		113
96	=head2 UTILITY FUNCTIONS	114	=head2 UTILITY FUNCTIONS
97		115
98	=over 4	116	=over 4
99		117
…		…
127		145
128	=cut	146	=cut
129		147
130	#############################################################################	148	#############################################################################
131		149
132	=head2 EVENTS AND OBJECT ATTACHMENTS	150	=head2 ATTACHABLE OBJECTS
		151
		152	Many objects in crossfire are so-called attachable objects. That means you can
		153	attach callbacks/event handlers (a collection of which is called an "attachment")
		154	to it. All such attachable objects support the following methods.
		155
		156	In the following description, CLASS can be any of C<global>, C<object>
		157	C<player>, C<client> or C<map> (i.e. the attachable objects in
		158	crossfire+).
133		159
134	=over 4	160	=over 4
135		161
136	=item $object->attach ($attachment, key => $value...)
137
138	=item $object->detach ($attachment)
139
140	Attach/detach a pre-registered attachment to an object.
141
142	=item $player->attach ($attachment, key => $value...)
143
144	=item $player->detach ($attachment)
145
146	Attach/detach a pre-registered attachment to a player.
147
148	=item $map->attach ($attachment, key => $value...)	162	=item $attachable->attach ($attachment, key => $value...)
149		163
150	=item $map->detach ($attachment)	164	=item $attachable->detach ($attachment)
151		165
152	Attach/detach a pre-registered attachment to a map.	166	Attach/detach a pre-registered attachment to a specific object and give it
		167	the specified key/value pairs as arguments.
153		168
154	=item $bool = $object->attached ($name)	169	Example, attach a minesweeper attachment to the given object, making it a
		170	10x10 minesweeper game:
155		171
156	=item $bool = $player->attached ($name)	172	$obj->attach (minesweeper => width => 10, height => 10);
157		173
158	=item $bool = $map->attached ($name)	174	=item $bool = $attachable->attached ($name)
159		175
160	Checks wether the named attachment is currently attached to the object.	176	Checks wether the named attachment is currently attached to the object.
161		177
162	=item cf::attach_global ...	178	=item cf::CLASS->attach ...
163		179
164	Attach handlers for global events.	180	=item cf::CLASS->detach ...
165		181
166	This and all following C<attach_*>-functions expect any number of the	182	Define an anonymous attachment and attach it to all objects of the given
167	following handler/hook descriptions:	183	CLASS. See the next function for an explanation of its arguments.
		184
		185	You can attach to global events by using the C<cf::global> class.
		186
		187	Example, log all player logins:
		188
		189	cf::player->attach (
		190	on_login => sub {
		191	my ($pl) = @_;
		192	...
		193	},
		194	);
		195
		196	Example, attach to the jeweler skill:
		197
		198	cf::object->attach (
		199	type => cf::SKILL,
		200	subtype => cf::SK_JEWELER,
		201	on_use_skill => sub {
		202	my ($sk, $ob, $part, $dir, $msg) = @_;
		203	...
		204	},
		205	);
		206
		207	=item cf::CLASS::attachment $name, ...
		208
		209	Register an attachment by C<$name> through which attachable objects of the
		210	given CLASS can refer to this attachment.
		211
		212	Some classes such as crossfire maps and objects can specify attachments
		213	that are attached at load/instantiate time, thus the need for a name.
		214
		215	These calls expect any number of the following handler/hook descriptions:
168		216
169	=over 4	217	=over 4
170		218
171	=item prio => $number	219	=item prio => $number
172		220
…		…
174	by another C<prio> setting). Lower priority handlers get executed	222	by another C<prio> setting). Lower priority handlers get executed
175	earlier. The default priority is C<0>, and many built-in handlers are	223	earlier. The default priority is C<0>, and many built-in handlers are
176	registered at priority C<-1000>, so lower priorities should not be used	224	registered at priority C<-1000>, so lower priorities should not be used
177	unless you know what you are doing.	225	unless you know what you are doing.
178		226
		227	=item type => $type
		228
		229	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		230	given type of objects only (the additional parameter C<subtype> can be
		231	used to further limit to the given subtype).
		232
179	=item on_I<event> => \&cb	233	=item on_I<event> => \&cb
180		234
181	Call the given code reference whenever the named event happens (event is	235	Call the given code reference whenever the named event happens (event is
182	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	236	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
183	handlers are recognised generally depends on the type of object these	237	handlers are recognised generally depends on the type of object these
…		…
192	package and register them. Only handlers for eevents supported by the	246	package and register them. Only handlers for eevents supported by the
193	object/class are recognised.	247	object/class are recognised.
194		248
195	=back	249	=back
196		250
197	=item cf::attach_to_type $object_type, $subtype, ...	251	Example, define an attachment called "sockpuppet" that calls the given
		252	event handler when a monster attacks:
198		253
199	Attach handlers for a specific object type (e.g. TRANSPORT) and	254	cf::object::attachment sockpuppet =>
200	subtype. If C<$subtype> is zero or undef, matches all objects of the given	255	on_skill_attack => sub {
201	type.	256	my ($self, $victim) = @_;
202		257	...
203	=item cf::attach_to_objects ...
204
205	Attach handlers to all objects. Do not use this except for debugging or
206	very rare events, as handlers are (obviously) called for I<all> objects in
207	the game.
208
209	=item cf::attach_to_players ...
210
211	Attach handlers to all players.
212
213	=item cf::attach_to_maps ...
214
215	Attach handlers to all maps.
216
217	=item cf:register_attachment $name, ...
218
219	Register an attachment by name through which objects can refer to this
220	attachment.
221
222	=item cf:register_player_attachment $name, ...
223
224	Register an attachment by name through which players can refer to this
225	attachment.
226
227	=item cf:register_map_attachment $name, ...
228
229	Register an attachment by name through which maps can refer to this
230	attachment.
231
232	=cut
233
234	# the following variables are defined in .xs and must not be re-created
235	our @CB_GLOBAL = (); # registry for all global events
236	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
237	our @CB_PLAYER = ();
238	our @CB_TYPE = (); # registry for type (cf-object class) based events
239	our @CB_MAP = ();
240
241	my %attachment;
242
243	sub _attach_cb($\%$$$) {
244	my ($registry, $undo, $event, $prio, $cb) = @_;
245
246	use sort 'stable';
247
248	$cb = [$prio, $cb];
249
250	@{$registry->[$event]} = sort
251	{ $a->[0] cmp $b->[0] }
252	@{$registry->[$event] \|\| []}, $cb;
253
254	push @{$undo->{cb}}, [$event, $cb];
255	}
256
257	# attach handles attaching event callbacks
258	# the only thing the caller has to do is pass the correct
259	# registry (== where the callback attaches to).
260	sub _attach(\@$@) {
261	my ($registry, $klass, @arg) = @_;
262
263	my $prio = 0;
264
265	my %undo = (
266	registry => $registry,
267	cb => [],
268	);
269
270	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
271
272	while (@arg) {
273	my $type = shift @arg;
274
275	if ($type eq "prio") {
276	$prio = shift @arg;
277
278	} elsif ($type eq "package") {
279	my $pkg = shift @arg;
280
281	while (my ($name, $id) = each %cb_id) {
282	if (my $cb = $pkg->can ($name)) {
283	_attach_cb $registry, %undo, $id, $prio, $cb;
284	}
285	}	258	}
286
287	} elsif (exists $cb_id{$type}) {
288	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
289
290	} elsif (ref $type) {
291	warn "attaching objects not supported, ignoring.\n";
292
293	} else {
294	shift @arg;
295	warn "attach argument '$type' not supported, ignoring.\n";
296	}
297	}
298
299	\%undo
300	}
301
302	sub _attach_attachment {
303	my ($obj, $name, %arg) = @_;
304
305	return if exists $obj->{_attachment}{$name};
306
307	my $res;
308
309	if (my $attach = $attachment{$name}) {
310	my $registry = $obj->registry;
311
312	for (@$attach) {
313	my ($klass, @attach) = @$_;
314	$res = _attach @$registry, $klass, @attach;
315	}
316
317	$obj->{$name} = \%arg;
318	} else {
319	warn "object uses attachment '$name' that is not available, postponing.\n";
320	}
321
322	$obj->{_attachment}{$name} = undef;
323
324	$res->{attachment} = $name;
325	$res
326	}
327
328	*cf::object::attach =
329	*cf::player::attach =
330	*cf::map::attach = sub {
331	my ($obj, $name, %arg) = @_;
332
333	_attach_attachment $obj, $name, %arg;
334	};
335
336	# all those should be optimised
337	*cf::object::detach =
338	*cf::player::detach =
339	*cf::map::detach = sub {
340	my ($obj, $name) = @_;
341
342	delete $obj->{_attachment}{$name};
343	reattach ($obj);
344	};
345
346	*cf::object::attached =
347	*cf::player::attached =
348	*cf::map::attached = sub {
349	my ($obj, $name) = @_;
350
351	exists $obj->{_attachment}{$name}
352	};
353
354	sub attach_global {
355	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
356	}
357
358	sub attach_to_type {
359	my $type = shift;
360	my $subtype = shift;
361
362	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
363	}
364
365	sub attach_to_objects {
366	_attach @CB_OBJECT, KLASS_OBJECT, @_
367	}
368
369	sub attach_to_players {
370	_attach @CB_PLAYER, KLASS_PLAYER, @_
371	}
372
373	sub attach_to_maps {
374	_attach @CB_MAP, KLASS_MAP, @_
375	}
376
377	sub register_attachment {
378	my $name = shift;
379
380	$attachment{$name} = [[KLASS_OBJECT, @_]];
381	}
382
383	sub register_player_attachment {
384	my $name = shift;
385
386	$attachment{$name} = [[KLASS_PLAYER, @_]];
387	}
388
389	sub register_map_attachment {
390	my $name = shift;
391
392	$attachment{$name} = [[KLASS_MAP, @_]];
393	}
394
395	our $override;
396	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
397
398	sub override {
399	$override = 1;
400	@invoke_results = ();
401	}
402
403	sub do_invoke {
404	my $event = shift;
405	my $callbacks = shift;
406
407	@invoke_results = ();
408
409	local $override;
410
411	for (@$callbacks) {
412	eval { &{$_->[1]} };
413
414	if ($@) {
415	warn "$@";
416	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
417	override;
418	}
419
420	return 1 if $override;
421	}
422
423	0	259	}
424	}
425		260
426	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	261	=item $attachable->valid
427
428	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
429
430	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
431
432	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
433
434	Generate a global/object/player/map-specific event with the given arguments.
435
436	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
437	removed in future versions), and there is no public API to access override
438	results (if you must, access C<@cf::invoke_results> directly).
439
440	=back
441
442	=cut
443
444	#############################################################################
445
446	=head2 METHODS VALID FOR ALL CORE OBJECTS
447
448	=over 4
449
450	=item $object->valid, $player->valid, $map->valid
451		262
452	Just because you have a perl object does not mean that the corresponding	263	Just because you have a perl object does not mean that the corresponding
453	C-level object still exists. If you try to access an object that has no	264	C-level object still exists. If you try to access an object that has no
454	valid C counterpart anymore you get an exception at runtime. This method	265	valid C counterpart anymore you get an exception at runtime. This method
455	can be used to test for existence of the C object part without causing an	266	can be used to test for existence of the C object part without causing an
456	exception.	267	exception.
457		268
		269	=cut
		270
		271	# the following variables are defined in .xs and must not be re-created
		272	our @CB_GLOBAL = (); # registry for all global events
		273	our @CB_ATTACHABLE = (); # registry for all attachables
		274	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		275	our @CB_PLAYER = ();
		276	our @CB_CLIENT = ();
		277	our @CB_TYPE = (); # registry for type (cf-object class) based events
		278	our @CB_MAP = ();
		279
		280	my %attachment;
		281
		282	sub _attach_cb($$$$) {
		283	my ($registry, $event, $prio, $cb) = @_;
		284
		285	use sort 'stable';
		286
		287	$cb = [$prio, $cb];
		288
		289	@{$registry->[$event]} = sort
		290	{ $a->[0] cmp $b->[0] }
		291	@{$registry->[$event] \|\| []}, $cb;
		292	}
		293
		294	# hack
		295	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		296
		297	# attach handles attaching event callbacks
		298	# the only thing the caller has to do is pass the correct
		299	# registry (== where the callback attaches to).
		300	sub _attach {
		301	my ($registry, $klass, @arg) = @_;
		302
		303	my $object_type;
		304	my $prio = 0;
		305	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		306
		307	#TODO: get rid of this hack
		308	if ($attachable_klass{$klass}) {
		309	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		310	}
		311
		312	while (@arg) {
		313	my $type = shift @arg;
		314
		315	if ($type eq "prio") {
		316	$prio = shift @arg;
		317
		318	} elsif ($type eq "type") {
		319	$object_type = shift @arg;
		320	$registry = $CB_TYPE[$object_type] \|\|= [];
		321
		322	} elsif ($type eq "subtype") {
		323	defined $object_type or Carp::croak "subtype specified without type";
		324	my $object_subtype = shift @arg;
		325	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] \|\|= [];
		326
		327	} elsif ($type eq "package") {
		328	my $pkg = shift @arg;
		329
		330	while (my ($name, $id) = each %cb_id) {
		331	if (my $cb = $pkg->can ($name)) {
		332	_attach_cb $registry, $id, $prio, $cb;
		333	}
		334	}
		335
		336	} elsif (exists $cb_id{$type}) {
		337	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		338
		339	} elsif (ref $type) {
		340	warn "attaching objects not supported, ignoring.\n";
		341
		342	} else {
		343	shift @arg;
		344	warn "attach argument '$type' not supported, ignoring.\n";
		345	}
		346	}
		347	}
		348
		349	sub _object_attach {
		350	my ($obj, $name, %arg) = @_;
		351
		352	return if exists $obj->{_attachment}{$name};
		353
		354	if (my $attach = $attachment{$name}) {
		355	my $registry = $obj->registry;
		356
		357	for (@$attach) {
		358	my ($klass, @attach) = @$_;
		359	_attach $registry, $klass, @attach;
		360	}
		361
		362	$obj->{$name} = \%arg;
		363	} else {
		364	warn "object uses attachment '$name' that is not available, postponing.\n";
		365	}
		366
		367	$obj->{_attachment}{$name} = undef;
		368	}
		369
		370	sub cf::attachable::attach {
		371	if (ref $_[0]) {
		372	_object_attach @_;
		373	} else {
		374	_attach shift->_attach_registry, @_;
		375	}
		376	};
		377
		378	# all those should be optimised
		379	sub cf::attachable::detach {
		380	my ($obj, $name) = @_;
		381
		382	if (ref $obj) {
		383	delete $obj->{_attachment}{$name};
		384	reattach ($obj);
		385	} else {
		386	Carp::croak "cannot, currently, detach class attachments";
		387	}
		388	};
		389
		390	sub cf::attachable::attached {
		391	my ($obj, $name) = @_;
		392
		393	exists $obj->{_attachment}{$name}
		394	}
		395
		396	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		397	eval "#line " . __LINE__ . " 'cf.pm'
		398	sub cf::\L$klass\E::_attach_registry {
		399	(\\\@CB_$klass, KLASS_$klass)
		400	}
		401
		402	sub cf::\L$klass\E::attachment {
		403	my \$name = shift;
		404
		405	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		406	}
		407	";
		408	die if $@;
		409	}
		410
		411	our $override;
		412	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		413
		414	sub override {
		415	$override = 1;
		416	@invoke_results = ();
		417	}
		418
		419	sub do_invoke {
		420	my $event = shift;
		421	my $callbacks = shift;
		422
		423	@invoke_results = ();
		424
		425	local $override;
		426
		427	for (@$callbacks) {
		428	eval { &{$_->[1]} };
		429
		430	if ($@) {
		431	warn "$@";
		432	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		433	override;
		434	}
		435
		436	return 1 if $override;
		437	}
		438
		439	0
		440	}
		441
		442	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		443
		444	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		445
		446	Generate an object-specific event with the given arguments.
		447
		448	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		449	removed in future versions), and there is no public API to access override
		450	results (if you must, access C<@cf::invoke_results> directly).
		451
458	=back	452	=back
459		453
460	=cut	454	=cut
461
462	*cf::object::valid =
463	*cf::player::valid =
464	*cf::map::valid = \&cf::_valid;
465		455
466	#############################################################################	456	#############################################################################
467	# object support	457	# object support
468		458
469	sub instantiate {	459	cf::attachable->attach (
		460	prio => -1000000,
		461	on_instantiate => sub {
470	my ($obj, $data) = @_;	462	my ($obj, $data) = @_;
471		463
472	$data = from_json $data;	464	$data = from_json $data;
473		465
474	for (@$data) {	466	for (@$data) {
475	my ($name, $args) = @$_;	467	my ($name, $args) = @$_;
476		468
477	$obj->attach ($name, %{$args \|\| {} });	469	$obj->attach ($name, %{$args \|\| {} });
		470	}
478	}	471	},
479	}	472	on_reattach => sub {
480
481	# basically do the same as instantiate, without calling instantiate	473	# basically do the same as instantiate, without calling instantiate
482	sub reattach {
483	my ($obj) = @_;	474	my ($obj) = @_;
484	my $registry = $obj->registry;	475	my $registry = $obj->registry;
485		476
486	@$registry = ();	477	@$registry = ();
487		478
488	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} \|\| {} };	479	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} \|\| {} };
489		480
490	for my $name (keys %{ $obj->{_attachment} \|\| {} }) {	481	for my $name (keys %{ $obj->{_attachment} \|\| {} }) {
491	if (my $attach = $attachment{$name}) {	482	if (my $attach = $attachment{$name}) {
492	for (@$attach) {	483	for (@$attach) {
493	my ($klass, @attach) = @$_;	484	my ($klass, @attach) = @$_;
494	_attach @$registry, $klass, @attach;	485	_attach $registry, $klass, @attach;
		486	}
		487	} else {
		488	warn "object uses attachment '$name' that is not available, postponing.\n";
495	}	489	}
496	} else {
497	warn "object uses attachment '$name' that is not available, postponing.\n";
498	}	490	}
499	}	491	},
500	}	492	on_clone => sub {
		493	my ($src, $dst) = @_;
		494
		495	@{$dst->registry} = @{$src->registry};
		496
		497	%$dst = %$src;
		498
		499	%{$dst->{_attachment}} = %{$src->{_attachment}}
		500	if exists $src->{_attachment};
		501	},
		502	);
501		503
502	sub object_freezer_save {	504	sub object_freezer_save {
503	my ($filename, $rdata, $objs) = @_;	505	my ($filename, $rdata, $objs) = @_;
504		506
505	if (length $$rdata) {	507	if (length $$rdata) {
…		…
555	}	557	}
556		558
557	()	559	()
558	}	560	}
559		561
560	attach_to_objects
561	prio => -1000000,
562	on_clone => sub {
563	my ($src, $dst) = @_;
564
565	@{$dst->registry} = @{$src->registry};
566
567	%$dst = %$src;
568
569	%{$dst->{_attachment}} = %{$src->{_attachment}}
570	if exists $src->{_attachment};
571	},
572	;
573
574	#############################################################################	562	#############################################################################
575	# old plug-in events	563	# command handling &c
576		564
577	sub inject_event {	565	=item cf::register_command $name => \&callback($ob,$args);
578	my $extension = shift;
579	my $event_code = shift;
580		566
581	my $cb = $hook[$event_code]{$extension}	567	Register a callback for execution when the client sends the user command
582	or return;	568	$name.
583		569
584	&$cb	570	=cut
585	}
586
587	sub inject_global_event {
588	my $event = shift;
589
590	my $cb = $hook[$event]
591	or return;
592
593	List::Util::max map &$_, values %$cb
594	}
595
596	sub inject_command {
597	my ($name, $obj, $params) = @_;
598
599	for my $cmd (@{ $command{$name} }) {
600	$cmd->[1]->($obj, $params);
601	}
602
603	-1
604	}
605		571
606	sub register_command {	572	sub register_command {
607	my ($name, $time, $cb) = @_;	573	my ($name, $cb) = @_;
608		574
609	my $caller = caller;	575	my $caller = caller;
610	#warn "registering command '$name/$time' to '$caller'";	576	#warn "registering command '$name/$time' to '$caller'";
611		577
612	push @{ $command{$name} }, [$time, $cb, $caller];	578	push @{ $COMMAND{$name} }, [$caller, $cb];
613	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
614	}	579	}
		580
		581	=item cf::register_extcmd $name => \&callback($pl,$packet);
		582
		583	Register a callbackf ro execution when the client sends an extcmd packet.
		584
		585	If the callback returns something, it is sent back as if reply was being
		586	called.
		587
		588	=cut
615		589
616	sub register_extcmd {	590	sub register_extcmd {
617	my ($name, $cb) = @_;	591	my ($name, $cb) = @_;
618		592
619	my $caller = caller;	593	my $caller = caller;
620	#warn "registering extcmd '$name' to '$caller'";	594	#warn "registering extcmd '$name' to '$caller'";
621		595
622	$extcmd{$name} = [$cb, $caller];	596	$EXTCMD{$name} = [$cb, $caller];
623	}	597	}
		598
		599	cf::player->attach (
		600	on_command => sub {
		601	my ($pl, $name, $params) = @_;
		602
		603	my $cb = $COMMAND{$name}
		604	or return;
		605
		606	for my $cmd (@$cb) {
		607	$cmd->[1]->($pl->ob, $params);
		608	}
		609
		610	cf::override;
		611	},
		612	on_extcmd => sub {
		613	my ($pl, $buf) = @_;
		614
		615	my $msg = eval { from_json $buf };
		616
		617	if (ref $msg) {
		618	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		619	if (my %reply = $cb->[0]->($pl, $msg)) {
		620	$pl->ext_reply ($msg->{msgid}, %reply);
		621	}
		622	}
		623	} else {
		624	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		625	}
		626
		627	cf::override;
		628	},
		629	);
624		630
625	sub register {	631	sub register {
626	my ($base, $pkg) = @_;	632	my ($base, $pkg) = @_;
627		633
628	#TODO	634	#TODO
…		…
671	# for my $idx (0 .. $#PLUGIN_EVENT) {	677	# for my $idx (0 .. $#PLUGIN_EVENT) {
672	# delete $hook[$idx]{$pkg};	678	# delete $hook[$idx]{$pkg};
673	# }	679	# }
674		680
675	# remove commands	681	# remove commands
676	for my $name (keys %command) {	682	for my $name (keys %COMMAND) {
677	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };	683	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
678		684
679	if (@cb) {	685	if (@cb) {
680	$command{$name} = \@cb;	686	$COMMAND{$name} = \@cb;
681	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
682	} else {	687	} else {
683	delete $command{$name};
684	delete $COMMAND{"$name\000"};	688	delete $COMMAND{$name};
685	}	689	}
686	}	690	}
687		691
688	# remove extcmds	692	# remove extcmds
689	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {	693	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
690	delete $extcmd{$name};	694	delete $EXTCMD{$name};
691	}	695	}
692		696
693	if (my $cb = $pkg->can ("unload")) {	697	if (my $cb = $pkg->can ("unload")) {
694	eval {	698	eval {
695	$cb->($pkg);	699	$cb->($pkg);
…		…
699		703
700	Symbol::delete_package $pkg;	704	Symbol::delete_package $pkg;
701	}	705	}
702		706
703	sub load_extensions {	707	sub load_extensions {
704	my $LIBDIR = maps_directory "perl";
705
706	for my $ext (<$LIBDIR/*.ext>) {	708	for my $ext (<$LIBDIR/*.ext>) {
707	next unless -r $ext;	709	next unless -r $ext;
708	eval {	710	eval {
709	load_extension $ext;	711	load_extension $ext;
710	1	712	1
711	} or warn "$ext not loaded: $@";	713	} or warn "$ext not loaded: $@";
712	}	714	}
713	}	715	}
714		716
715	#############################################################################	717	#############################################################################
716	# extcmd framework, basically convert ext <msg>
717	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
718
719	attach_to_players
720	on_extcmd => sub {
721	my ($pl, $buf) = @_;
722
723	my $msg = eval { from_json $buf };
724
725	if (ref $msg) {
726	if (my $cb = $extcmd{$msg->{msgtype}}) {
727	if (my %reply = $cb->[0]->($pl, $msg)) {
728	$pl->ext_reply ($msg->{msgid}, %reply);
729	}
730	}
731	} else {
732	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
733	}
734
735	cf::override;
736	},
737	;
738
739	#############################################################################
740	# load/save/clean perl data associated with a map	718	# load/save/clean perl data associated with a map
741		719
742	*cf::mapsupport::on_clean = sub {	720	*cf::mapsupport::on_clean = sub {
743	my ($map) = @_;	721	my ($map) = @_;
744		722
…		…
746	defined $path or return;	724	defined $path or return;
747		725
748	unlink "$path.pst";	726	unlink "$path.pst";
749	};	727	};
750		728
751	attach_to_maps prio => -10000, package => cf::mapsupport::;	729	cf::map->attach (prio => -10000, package => cf::mapsupport::);
752		730
753	#############################################################################	731	#############################################################################
754	# load/save perl data associated with player->ob objects	732	# load/save perl data associated with player->ob objects
755		733
756	sub all_objects(@) {	734	sub all_objects(@) {
757	@_, map all_objects ($_->inv), @_	735	@_, map all_objects ($_->inv), @_
758	}	736	}
759		737
760	# TODO: compatibility cruft, remove when no longer needed	738	# TODO: compatibility cruft, remove when no longer needed
761	attach_to_players	739	cf::player->attach (
762	on_load => sub {	740	on_load => sub {
763	my ($pl, $path) = @_;	741	my ($pl, $path) = @_;
764		742
765	for my $o (all_objects $pl->ob) {	743	for my $o (all_objects $pl->ob) {
766	if (my $value = $o->get_ob_key_value ("_perl_data")) {	744	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
768		746
769	%$o = %{ Storable::thaw pack "H*", $value };	747	%$o = %{ Storable::thaw pack "H*", $value };
770	}	748	}
771	}	749	}
772	},	750	},
773	;	751	);
774		752
775	#############################################################################	753	#############################################################################
776		754
777	=head2 CORE EXTENSIONS	755	=head2 CORE EXTENSIONS
778		756
779	Functions and methods that extend core crossfire objects.	757	Functions and methods that extend core crossfire objects.
		758
		759	=head3 cf::player
780		760
781	=over 4	761	=over 4
782		762
783	=item cf::player::exists $login	763	=item cf::player::exists $login
784		764
…		…
789	sub cf::player::exists($) {	769	sub cf::player::exists($) {
790	cf::player::find $_[0]	770	cf::player::find $_[0]
791	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	771	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
792	}	772	}
793		773
		774	=item $player->ext_reply ($msgid, $msgtype, %msg)
		775
		776	Sends an ext reply to the player.
		777
		778	=cut
		779
		780	sub cf::player::ext_reply($$$%) {
		781	my ($self, $id, %msg) = @_;
		782
		783	$msg{msgid} = $id;
		784
		785	$self->send ("ext " . to_json \%msg);
		786	}
		787
		788	=back
		789
		790	=head3 cf::object::player
		791
		792	=over 4
		793
794	=item $player_object->reply ($npc, $msg[, $flags])	794	=item $player_object->reply ($npc, $msg[, $flags])
795		795
796	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	796	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
797	can be C<undef>. Does the right thing when the player is currently in a	797	can be C<undef>. Does the right thing when the player is currently in a
798	dialogue with the given NPC character.	798	dialogue with the given NPC character.
799		799
800	=cut	800	=cut
801		801
802	# rough implementation of a future "reply" method that works	802	# rough implementation of a future "reply" method that works
803	# with dialog boxes.	803	# with dialog boxes.
		804	#TODO: the first argument must go, split into a $npc->reply_to ( method
804	sub cf::object::player::reply($$$;$) {	805	sub cf::object::player::reply($$$;$) {
805	my ($self, $npc, $msg, $flags) = @_;	806	my ($self, $npc, $msg, $flags) = @_;
806		807
807	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;	808	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;
808		809
…		…
812	$msg = $npc->name . " says: $msg" if $npc;	813	$msg = $npc->name . " says: $msg" if $npc;
813	$self->message ($msg, $flags);	814	$self->message ($msg, $flags);
814	}	815	}
815	}	816	}
816		817
817	=item $player->ext_reply ($msgid, $msgtype, %msg)
818
819	Sends an ext reply to the player.
820
821	=cut
822
823	sub cf::player::ext_reply($$$%) {
824	my ($self, $id, %msg) = @_;
825
826	$msg{msgid} = $id;
827
828	$self->send ("ext " . to_json \%msg);
829	}
830
831	=item $player_object->may ("access")	818	=item $player_object->may ("access")
832		819
833	Returns wether the given player is authorized to access resource "access"	820	Returns wether the given player is authorized to access resource "access"
834	(e.g. "command_wizcast").	821	(e.g. "command_wizcast").
835		822
…		…
842	(ref $cf::CFG{"may_$access"}	829	(ref $cf::CFG{"may_$access"}
843	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	830	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
844	: $cf::CFG{"may_$access"})	831	: $cf::CFG{"may_$access"})
845	}	832	}
846		833
847	=cut	834	=head3 cf::client
848		835
849	#############################################################################	836	=over 4
		837
		838	=item $client->send_drawinfo ($text, $flags)
		839
		840	Sends a drawinfo packet to the client. Circumvents output buffering so
		841	should not be used under normal circumstances.
		842
		843	=cut
		844
		845	sub cf::client::send_drawinfo {
		846	my ($self, $text, $flags) = @_;
		847
		848	utf8::encode $text;
		849	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		850	}
		851
		852
		853	=item $success = $client->query ($flags, "text", \&cb)
		854
		855	Queues a query to the client, calling the given callback with
		856	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		857	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		858
		859	Queries can fail, so check the return code. Or don't, as queries will become
		860	reliable at some point in the future.
		861
		862	=cut
		863
		864	sub cf::client::query {
		865	my ($self, $flags, $text, $cb) = @_;
		866
		867	return unless $self->state == ST_PLAYING
		868	\|\| $self->state == ST_SETUP
		869	\|\| $self->state == ST_CUSTOM;
		870
		871	$self->state (ST_CUSTOM);
		872
		873	utf8::encode $text;
		874	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		875
		876	$self->send_packet ($self->{query_queue}[0][0])
		877	if @{ $self->{query_queue} } == 1;
		878	}
		879
		880	cf::client->attach (
		881	on_reply => sub {
		882	my ($ns, $msg) = @_;
		883
		884	# this weird shuffling is so that direct followup queries
		885	# get handled first
		886	my $queue = delete $ns->{query_queue};
		887
		888	(shift @$queue)->[1]->($msg);
		889
		890	push @{ $ns->{query_queue} }, @$queue;
		891
		892	if (@{ $ns->{query_queue} } == @$queue) {
		893	if (@$queue) {
		894	$ns->send_packet ($ns->{query_queue}[0][0]);
		895	} else {
		896	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		897	}
		898	}
		899	},
		900	);
		901
		902	=item $client->coro (\&cb)
		903
		904	Create a new coroutine, running the specified callback. The coroutine will
		905	be automatically cancelled when the client gets destroyed (e.g. on logout,
		906	or loss of connection).
		907
		908	=cut
		909
		910	sub cf::client::coro {
		911	my ($self, $cb) = @_;
		912
		913	my $coro; $coro = async {
		914	eval {
		915	$cb->();
		916	};
		917	warn $@ if $@;
		918	delete $self->{_coro}{$coro+0};
		919	};
		920
		921	$self->{_coro}{$coro+0} = $coro;
		922	}
		923
		924	cf::client->attach (
		925	on_destroy => sub {
		926	my ($ns) = @_;
		927
		928	$_->cancel for values %{ (delete $ns->{_coro}) \|\| {} };
		929	},
		930	);
		931
		932	=back
		933
850		934
851	=head2 SAFE SCRIPTING	935	=head2 SAFE SCRIPTING
852		936
853	Functions that provide a safe environment to compile and execute	937	Functions that provide a safe environment to compile and execute
854	snippets of perl code without them endangering the safety of the server	938	snippets of perl code without them endangering the safety of the server
…		…
869		953
870	=pod	954	=pod
871		955
872	The following fucntions and emthods are available within a safe environment:	956	The following fucntions and emthods are available within a safe environment:
873		957
874	cf::object contr pay_amount pay_player	958	cf::object contr pay_amount pay_player map
875	cf::object::player player	959	cf::object::player player
876	cf::player peaceful	960	cf::player peaceful
		961	cf::map trigger
877		962
878	=cut	963	=cut
879		964
880	for (	965	for (
881	["cf::object" => qw(contr pay_amount pay_player)],	966	["cf::object" => qw(contr pay_amount pay_player map)],
882	["cf::object::player" => qw(player)],	967	["cf::object::player" => qw(player)],
883	["cf::player" => qw(peaceful)],	968	["cf::player" => qw(peaceful)],
		969	["cf::map" => qw(trigger)],
884	) {	970	) {
885	no strict 'refs';	971	no strict 'refs';
886	my ($pkg, @funs) = @$_;	972	my ($pkg, @funs) = @$_;
887	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	973	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
888	for @funs;	974	for @funs;
…		…
1028	sub db_sync() {	1114	sub db_sync() {
1029	db_save if $dirty;	1115	db_save if $dirty;
1030	undef $dirty;	1116	undef $dirty;
1031	}	1117	}
1032		1118
1033	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	1119	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1034	db_sync;	1120	db_sync;
1035	});	1121	});
1036		1122
1037	sub db_dirty() {	1123	sub db_dirty() {
1038	$dirty = 1;	1124	$dirty = 1;
…		…
1052	$DB->{$_[0]} = $_[1];	1138	$DB->{$_[0]} = $_[1];
1053	}	1139	}
1054	db_dirty;	1140	db_dirty;
1055	}	1141	}
1056		1142
1057	attach_global	1143	cf::global->attach (
1058	prio => 10000,	1144	prio => 10000,
1059	on_cleanup => sub {	1145	on_cleanup => sub {
1060	db_sync;	1146	db_sync;
1061	},	1147	},
1062	;	1148	);
1063	}	1149	}
1064		1150
1065	#############################################################################	1151	#############################################################################
1066	# the server's main()	1152	# the server's main()
1067		1153
…		…
1088		1174
1089	$msg->("reloading...");	1175	$msg->("reloading...");
1090		1176
1091	eval {	1177	eval {
1092	# cancel all watchers	1178	# cancel all watchers
1093	$_->cancel for Event::all_watchers;	1179	for (Event::all_watchers) {
		1180	$_->cancel if $_->data & WF_AUTOCANCEL;
		1181	}
1094		1182
1095	# unload all extensions	1183	# unload all extensions
1096	for (@exts) {	1184	for (@exts) {
1097	$msg->("unloading <$_>");	1185	$msg->("unloading <$_>");
1098	unload_extension $_;	1186	unload_extension $_;
…		…
1133	#Symbol::delete_package __PACKAGE__;	1221	#Symbol::delete_package __PACKAGE__;
1134		1222
1135	# reload cf.pm	1223	# reload cf.pm
1136	$msg->("reloading cf.pm");	1224	$msg->("reloading cf.pm");
1137	require cf;	1225	require cf;
		1226	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1138		1227
1139	# load config and database again	1228	# load config and database again
1140	cf::cfg_load;	1229	cf::cfg_load;
1141	cf::db_load;	1230	cf::db_load;
1142		1231
…		…
1158	warn $_[0];	1247	warn $_[0];
1159	print "$_[0]\n";	1248	print "$_[0]\n";
1160	};	1249	};
1161	}	1250	}
1162		1251
		1252	register "<global>", __PACKAGE__;
		1253
1163	register_command "perl-reload", 0, sub {	1254	register_command "perl-reload" => sub {
1164	my ($who, $arg) = @_;	1255	my ($who, $arg) = @_;
1165		1256
1166	if ($who->flag (FLAG_WIZ)) {	1257	if ($who->flag (FLAG_WIZ)) {
1167	_perl_reload {	1258	_perl_reload {
1168	warn $_[0];	1259	warn $_[0];
1169	$who->message ($_[0]);	1260	$who->message ($_[0]);
1170	};	1261	};
1171	}	1262	}
1172	};	1263	};
1173		1264
1174	register "<global>", __PACKAGE__;
1175
1176	unshift @INC, $LIBDIR;	1265	unshift @INC, $LIBDIR;
1177		1266
1178	$TICK_WATCHER = Event->timer (	1267	$TICK_WATCHER = Event->timer (
1179	prio => 1,	1268	prio => 0,
1180	async => 1,
1181	at => $NEXT_TICK \|\| 1,	1269	at => $NEXT_TICK \|\| 1,
		1270	data => WF_AUTOCANCEL,
1182	cb => sub {	1271	cb => sub {
1183	cf::server_tick; # one server iteration	1272	cf::server_tick; # one server iteration
1184		1273
1185	my $NOW = Event::time;	1274	my $NOW = Event::time;
1186	$NEXT_TICK += $TICK;	1275	$NEXT_TICK += $TICK;
…		…
1196	IO::AIO::max_poll_time $TICK * 0.2;	1285	IO::AIO::max_poll_time $TICK * 0.2;
1197		1286
1198	Event->io (fd => IO::AIO::poll_fileno,	1287	Event->io (fd => IO::AIO::poll_fileno,
1199	poll => 'r',	1288	poll => 'r',
1200	prio => 5,	1289	prio => 5,
		1290	data => WF_AUTOCANCEL,
1201	cb => \&IO::AIO::poll_cb);	1291	cb => \&IO::AIO::poll_cb);
1202		1292
1203	1	1293	1
1204		1294

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.83 by root, Mon Dec 11 01:30:41 2006 UTC vs. Revision 1.101 by root, Mon Dec 25 14:43:23 2006 UTC

Diff Legend

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.83 by root, Mon Dec 11 01:30:41 2006 UTC vs.
Revision 1.101 by root, Mon Dec 25 14:43:23 2006 UTC