BufferPool Class¶
Description¶
BufferPool is a memory pool to reduce memory allocation time consumption for functionality like custom camera interoperability, which needs to allocate memory buffers of a fixed size repeatedly.
Constructor¶
block_size is the byte size of each Buffer .
capacity is the maximum count of Buffer .
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C:
void easyar_BufferPool__ctor(int block_size, int capacity, easyar_BufferPool * * Return)
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C++17:
BufferPool(int block_size, int capacity)
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Traditional C++:
BufferPool(int block_size, int capacity)
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Java:
public BufferPool(int block_size, int capacity)
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Kotlin:
constructor(block_size: Int, capacity: Int)
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Objective-C:
+ (easyar_BufferPool *) create:(int)block_size capacity:(int)capacity
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Swift:
public convenience init(_ block_size: Int32, _ capacity: Int32)
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C#:
public BufferPool(int block_size, int capacity)
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block_size¶
The byte size of each Buffer .
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C:
int easyar_BufferPool_block_size(const easyar_BufferPool * This)
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C++17:
int block_size()
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Traditional C++:
int block_size()
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Java:
public int block_size()
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Kotlin:
fun block_size(): Int
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Objective-C:
- (int)block_size
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Swift:
public func block_size() -> Int32
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C#:
public virtual int block_size()
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capacity¶
The maximum count of Buffer .
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C:
int easyar_BufferPool_capacity(const easyar_BufferPool * This)
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C++17:
int capacity()
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Traditional C++:
int capacity()
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Java:
public int capacity()
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Kotlin:
fun capacity(): Int
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Objective-C:
- (int)capacity
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Swift:
public func capacity() -> Int32
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C#:
public virtual int capacity()
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size¶
Current acquired count of Buffer .
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C:
int easyar_BufferPool_size(const easyar_BufferPool * This)
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C++17:
int size()
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Traditional C++:
int size()
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Java:
public int size()
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Kotlin:
fun size(): Int
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Objective-C:
- (int)size
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Swift:
public func size() -> Int32
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C#:
public virtual int size()
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tryAcquire¶
Tries to acquire a memory block. If current acquired count of Buffer does not reach maximum, a new Buffer is fetched or allocated, or else null is returned.
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C:
void easyar_BufferPool_tryAcquire(easyar_BufferPool * This, easyar_OptionalOfBuffer * Return)
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Traditional C++:
void tryAcquire(Buffer * * Return)
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Java:
public @Nullable Buffer tryAcquire()
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Kotlin:
fun tryAcquire(): Buffer?
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Objective-C:
- (easyar_Buffer *)tryAcquire
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Swift:
public func tryAcquire() -> Buffer?
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C#:
public virtual Optional<Buffer> tryAcquire()
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