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 .

C

void easyar_BufferPool__ctor(int block_size, int capacity, easyar_BufferPool * * Return)

C++17

BufferPool(int block_size, int capacity)

C++03(Deprecated)

BufferPool(int block_size, int capacity)

Java

public BufferPool(int block_size, int capacity)

Kotlin

constructor(block_size: Int, capacity: Int)

Objective-C

+ (easyar_BufferPool *) create:(int)block_size capacity:(int)capacity

Swift

public convenience init(_ block_size: Int32, _ capacity: Int32)

C#

public BufferPool(int block_size, int capacity)

block_size

The byte size of each Buffer .

C

int easyar_BufferPool_block_size(const easyar_BufferPool * This)

C++17

int block_size()

C++03(Deprecated)

int block_size()

Java

public int block_size()

Kotlin

fun block_size(): Int

Objective-C

- (int)block_size

Swift

public func block_size() -> Int32

C#

public virtual int block_size()

capacity

The maximum count of Buffer .

C

int easyar_BufferPool_capacity(const easyar_BufferPool * This)

C++17

int capacity()

C++03(Deprecated)

int capacity()

Java

public int capacity()

Kotlin

fun capacity(): Int

Objective-C

- (int)capacity

Swift

public func capacity() -> Int32

C#

public virtual int capacity()

size

Current acquired count of Buffer .

C

int easyar_BufferPool_size(const easyar_BufferPool * This)

C++17

int size()

C++03(Deprecated)

int size()

Java

public int size()

Kotlin

fun size(): Int

Objective-C

- (int)size

Swift

public func size() -> Int32

C#

public virtual int size()

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.

C

void easyar_BufferPool_tryAcquire(easyar_BufferPool * This, easyar_OptionalOfBuffer * Return)

C++17

std::optional<std::shared_ptr<Buffer>> tryAcquire()

C++03(Deprecated)

void tryAcquire(Buffer * * Return)

Java

public @Nullable Buffer tryAcquire()

Kotlin

fun tryAcquire(): Buffer?

Objective-C

- (easyar_Buffer *)tryAcquire

Swift

public func tryAcquire() -> Buffer?

C#

public virtual Optional<Buffer> tryAcquire()