Panda3D
|
A WeakConstPointerTo is similar to a WeakPointerTo, except it keeps a const pointer to the thing, that will be cleared to NULL when the thing deleted. More...
#include "weakPointerTo.h"
Public Types | |
typedef WeakPointerToBase< T >::To | To |
Public Member Functions | |
WeakConstPointerTo (const To *ptr=(const To *) NULL) | |
WeakConstPointerTo (const PointerTo< T > ©) | |
WeakConstPointerTo (const WeakPointerTo< T > ©) | |
WeakConstPointerTo (const WeakConstPointerTo< T > ©) | |
WeakConstPointerTo (const ConstPointerTo< T > ©) | |
void | clear () |
A convenient way to set the PointerTo object to NULL. | |
WeakPointerCallback * | get_callback () const |
Returns the callback that will be made when the pointer is deleted, or NULL if no callback has been set. | |
size_t | get_hash () const |
const To * | get_orig () const |
Returns the original pointer value, even if the object has since been deleted. | |
bool | is_null () const |
Returns true if the PointerTo is a NULL pointer, false otherwise. | |
bool | is_valid_pointer () const |
Returns true if the pointer is not null and the object has not been deleted. | |
void | mark_deleted () |
This is intended only to be called by the WeakPointerList destructor. | |
operator const T * () const | |
We also have the typecast operator to automatically convert WeakConstPointerTo's to the required kind of actual pointer. | |
void | operator delete (void *ptr) |
void | operator delete (void *ptr, void *) |
void | operator delete[] (void *ptr) |
void | operator delete[] (void *, void *) |
void * | operator new (size_t size) |
void * | operator new (size_t size, void *ptr) |
void * | operator new[] (size_t size, void *ptr) |
void * | operator new[] (size_t size) |
bool | operator!= (const PointerToBase< To > &other) const |
bool | operator!= (const To *other) const |
bool | operator!= (const WeakPointerToBase< To > &other) const |
bool | operator!= (To *other) const |
bool | operator!= (const PointerToVoid &other) const |
const To & | operator* () const |
const To * | operator-> () const |
bool | operator< (const To *other) const |
bool | operator< (const WeakPointerToBase< To > &other) const |
bool | operator< (const PointerToBase< To > &other) const |
bool | operator< (const PointerToVoid &other) const |
bool | operator< (const void *other) const |
bool | operator<= (const To *other) const |
bool | operator<= (To *other) const |
bool | operator<= (const WeakPointerToBase< To > &other) const |
bool | operator<= (const PointerToBase< To > &other) const |
WeakConstPointerTo< T > & | operator= (const PointerTo< T > ©) |
WeakConstPointerTo< T > & | operator= (const To *ptr) |
WeakConstPointerTo< T > & | operator= (const ConstPointerTo< T > ©) |
WeakConstPointerTo< T > & | operator= (const WeakPointerTo< T > ©) |
WeakConstPointerTo< T > & | operator= (const WeakConstPointerTo< T > ©) |
bool | operator== (const PointerToBase< To > &other) const |
bool | operator== (const To *other) const |
bool | operator== (To *other) const |
bool | operator== (const WeakPointerToBase< To > &other) const |
bool | operator== (const PointerToVoid &other) const |
bool | operator> (const To *other) const |
bool | operator> (const PointerToBase< To > &other) const |
bool | operator> (To *other) const |
bool | operator> (const WeakPointerToBase< To > &other) const |
bool | operator>= (const To *other) const |
bool | operator>= (const PointerToBase< To > &other) const |
bool | operator>= (const WeakPointerToBase< To > &other) const |
bool | operator>= (To *other) const |
void | output (ostream &out) const |
A handy function to output PointerTo's as a hex pointer followed by a reference count. | |
const To * | p () const |
Returns an ordinary pointer instead of a WeakConstPointerTo. | |
void | refresh () const |
Informs the WeakPointerTo object that its pointer is no longer deleted. | |
void | set_callback (WeakPointerCallback *callback) |
Sets a callback that will be made when the pointer is deleted. | |
bool | was_deleted () const |
Returns true if the object we are pointing to has been deleted, false otherwise. | |
Protected Member Functions | |
void | reassign (To *ptr) |
This is the main work of the PointerTo family. | |
void | reassign (const WeakPointerToBase< To > ©) |
void | reassign (const PointerToBase< To > ©) |
Protected Attributes | |
WeakPointerCallback * | _callback |
bool | _ptr_was_deleted |
void * | _void_ptr |
A WeakConstPointerTo is similar to a WeakPointerTo, except it keeps a const pointer to the thing, that will be cleared to NULL when the thing deleted.
Definition at line 69 of file weakPointerTo.h.
void WeakConstPointerTo< T >::clear | ( | ) | [inline] |
A convenient way to set the PointerTo object to NULL.
(Assignment to a NULL pointer also works, of course.)
Reimplemented from WeakPointerToBase< T >.
Definition at line 99 of file weakPointerTo.h.
WeakPointerCallback * WeakPointerToVoid::get_callback | ( | ) | const [inline, inherited] |
Returns the callback that will be made when the pointer is deleted, or NULL if no callback has been set.
Definition at line 79 of file weakPointerToVoid.I.
const WeakConstPointerTo< T >::To * WeakConstPointerTo< T >::get_orig | ( | ) | const [inline] |
Returns the original pointer value, even if the object has since been deleted.
Definition at line 277 of file weakPointerTo.I.
bool WeakConstPointerTo< T >::is_null | ( | ) | const [inline] |
Returns true if the PointerTo is a NULL pointer, false otherwise.
(Direct comparison to a NULL pointer also works.)
Reimplemented from PointerToVoid.
Definition at line 98 of file weakPointerTo.h.
bool WeakPointerToVoid::is_valid_pointer | ( | ) | const [inline, inherited] |
Returns true if the pointer is not null and the object has not been deleted.
Definition at line 101 of file weakPointerToVoid.I.
void WeakPointerToVoid::mark_deleted | ( | ) | [inline, inherited] |
This is intended only to be called by the WeakPointerList destructor.
It indicates that the object that we were pointing to has just been deleted.
Definition at line 45 of file weakPointerToVoid.I.
WeakConstPointerTo< T >::operator const T * | ( | ) | const [inline] |
We also have the typecast operator to automatically convert WeakConstPointerTo's to the required kind of actual pointer.
This introduces ambiguities which the compiler will resolve one way or the other, but we don't care which way it goes because either will be correct.
Definition at line 250 of file weakPointerTo.I.
void WeakPointerToBase< T >::output | ( | ostream & | out | ) | const [inline, inherited] |
A handy function to output PointerTo's as a hex pointer followed by a reference count.
Definition at line 424 of file weakPointerToBase.I.
const WeakConstPointerTo< T >::To * WeakConstPointerTo< T >::p | ( | ) | const [inline] |
Returns an ordinary pointer instead of a WeakConstPointerTo.
Useful to work around compiler problems, particularly for implicit upcasts.
Definition at line 264 of file weakPointerTo.I.
void WeakPointerToBase< T >::reassign | ( | To * | ptr | ) | [protected, inherited] |
This is the main work of the PointerTo family.
When the pointer is reassigned, decrement the old reference count and increment the new one.
Definition at line 69 of file weakPointerToBase.I.
References TypeHandle::none().
void WeakPointerToBase< T >::refresh | ( | ) | const [inline, inherited] |
Informs the WeakPointerTo object that its pointer is no longer deleted.
This may be used after a WeakPointerTo has deleted a deleted pointer, and then a new pointer has been reallocated. It's equivalent to simply reassigning the pointer to its new (i.e. original) value, but has the advantage that it is const, so can be used for WeakPointers used as keys in STL maps and sets.
Definition at line 412 of file weakPointerToBase.I.
void WeakPointerToVoid::set_callback | ( | WeakPointerCallback * | callback | ) | [inline, inherited] |
Sets a callback that will be made when the pointer is deleted.
If a previous callback has already been set, it will be replaced.
If the pointer has already been deleted, the callback will be made immediately.
Definition at line 64 of file weakPointerToVoid.I.
bool WeakPointerToVoid::was_deleted | ( | ) | const [inline, inherited] |
Returns true if the object we are pointing to has been deleted, false otherwise.
Definition at line 90 of file weakPointerToVoid.I.