StrongReferenceCounter Class Reference | C4D R23.110 C++ SDK - 中文文档编制,帮助,手册,教程

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StrongReferenceCounter Class Reference 内存

#include <atomictypes.h>

详细描述

Atomic reference counter.

Public Types
using	ValueType = UInt

公共成员函数
	StrongReferenceCounter ()
	StrongReferenceCounter (const StrongReferenceCounter &)
void	operator= (const StrongReferenceCounter &)
Bool	Inc ()
Bool	Dec ()
Bool	ConditionalInc ()
void	添加 ( UInt additionalReferences)
void	SetRelaxed ( UInt referenceCount)
	operator UInt () const
Bool	HasMultipleReferences () const

静态公共成员函数
static const StrongReferenceCounter &	NullValue ()
static StrongReferenceCounter &	Get (const void *object)

Protected Attributes
AtomicUInt	_value

Member Typedef Documentation

◆ ValueType

using ValueType = UInt

The underlying integral type of this reference counter.

构造函数 & 析构函数文档编制

◆ StrongReferenceCounter() [1/2]

StrongReferenceCounter

(

)

◆ StrongReferenceCounter() [2/2]

StrongReferenceCounter

(

const StrongReferenceCounter &

)

成员函数文档编制

◆ operator=()

void operator=

(

const StrongReferenceCounter &

)

◆ Inc()

Bool Inc

(

)

Increments reference counter (the caller acquires a strong reference).

返回: True for the very first reference, otherwise false.

◆ Dec()

Bool Dec

(

)

Decrements reference counter (the caller removes a strong reference).

返回: True if no more strong references are held, otherwise false.

◆ ConditionalInc()

Bool ConditionalInc

(

)

Adds a reference if the object is still strongly referenced.

返回: True if a strong reference was added, false if the object is currently being destructed.

◆ Add()

void Add

(

UInt

additionalReferences

)

Adds references.

参数

[in]

additionalReferences

The number of additional references to add.

◆ SetRelaxed()

void SetRelaxed

(

UInt

referenceCount

)

Sets a specifc reference count - for initialization only!

注意: You must guarantee that the access is exclusive and single-threaded. Use only for initialization of static objects which are not to destructed.

◆ operator UInt()

operator UInt

(

)

const

Returns the number of strong references to the object.

返回: The number of strong references.

◆ HasMultipleReferences()

Bool HasMultipleReferences

(

)

const

Returns whether an object has more than a single reference. For an object without a reference it will return false. For an object with one reference it will return false. For an object with a single reference and weak references it will return true. For an object with two references it will return true.

返回: True if the object has more than a single reference, false otherwise.

◆ NullValue()

static const StrongReferenceCounter & NullValue

(

)

static

◆ Get()

static StrongReferenceCounter & Get

(

const void *

object

)

static

Returns the reference counter for classes which do not implement custom AddReference/RemoveReference methods.

Member Data Documentation

◆ _value

AtomicUInt _value

protected