Pothos::ManagedBuffer Class Reference

#include <ManagedBuffer.hpp>

Public Member Functions
	ManagedBuffer (void)
pothos_explicit	operator bool (void) const
void	reset (void)
void	reset (std::shared_ptr< BufferManager > manager, const SharedBuffer &buff, const size_t slabIndex=0)
const SharedBuffer &	getBuffer (void) const
size_t	getSlabIndex (void) const
	~ManagedBuffer (void)
	ManagedBuffer destructor. More...
	ManagedBuffer (const ManagedBuffer &obj)
	ManagedBuffer copy constructor. More...
	ManagedBuffer (ManagedBuffer &&obj)
	ManagedBuffer move constructor. More...
ManagedBuffer &	operator= (const ManagedBuffer &obj)
	ManagedBuffer copy assignment. More...
ManagedBuffer &	operator= (ManagedBuffer &&obj)
	ManagedBuffer move assignment. More...
std::shared_ptr< BufferManager >	getBufferManager (void) const
	Get the associated buffer manager. More...
bool	operator< (const ManagedBuffer &) const
	sortable operator for ManagedBuffer More...
bool	unique (void) const
size_t	useCount (void) const

Friends
POTHOS_API friend bool	operator== (const ManagedBuffer &lhs, const ManagedBuffer &rhs)

Detailed Description

A ManagedBuffer is a buffer that interacts with a BufferManager. The ManagedBuffer maintains a reference count, and when no more copies are held by the user, the ManagedBuffer will be returned to the BufferManager; unless the BufferManager has been deleted.

Constructor & Destructor Documentation

Pothos::ManagedBuffer::ManagedBuffer

(

void

)

Create a null buffer. All fields are initialized to zero.

Pothos::ManagedBuffer::~ManagedBuffer

(

void

)

ManagedBuffer destructor.

Pothos::ManagedBuffer::ManagedBuffer

(

const ManagedBuffer &

obj

)

ManagedBuffer copy constructor.

Pothos::ManagedBuffer::ManagedBuffer

(

ManagedBuffer &&

obj

)

ManagedBuffer move constructor.

Member Function Documentation

const SharedBuffer& Pothos::ManagedBuffer::getBuffer

(

void

)

const

Get the internal buffer as set by the manager and which cannot be changed by the caller.

Returns

a const reference to the buffer

std::shared_ptr<BufferManager> Pothos::ManagedBuffer::getBufferManager

(

void

)

const

Get the associated buffer manager.

size_t Pothos::ManagedBuffer::getSlabIndex

(

void

)

const

Get the slab index associated with this buffer. The slab index related to implementation specifics. Typically, this index is only used when the underlying buffer is sourced from a continuous slab of memory.

Pothos::ManagedBuffer::operator bool ( void  ) const

inline

Is this managed buffer valid?

Returns

true if it holds an allocation.

bool Pothos::ManagedBuffer::operator< ( const ManagedBuffer &  rhs ) const

inline

sortable operator for ManagedBuffer

ManagedBuffer& Pothos::ManagedBuffer::operator=

(

const ManagedBuffer &

obj

)

ManagedBuffer copy assignment.

ManagedBuffer& Pothos::ManagedBuffer::operator=

(

ManagedBuffer &&

obj

)

ManagedBuffer move assignment.

void Pothos::ManagedBuffer::reset

(

void

)

Reset any reference held by the managed buffer. This managed buffer will become a null buffer.

void Pothos::ManagedBuffer::reset	(	std::shared_ptr< BufferManager >	manager,
		const SharedBuffer &	buff,
		const size_t	slabIndex = 0
	)

Reset the managed buffer for its next usage.

Parameters

manager	shared pointer to the buffer manager
buff	the shared buffer with memory and length
slabIndex	an identifying index used with slabs

bool Pothos::ManagedBuffer::unique ( void  ) const

inline

Is the reference to the managed buffer unique?

Returns

true if this is the only copy of the managed buffer

size_t Pothos::ManagedBuffer::useCount

(

void

)

const

The number of copies of the managed buffer.

Friends And Related Function Documentation

POTHOS_API friend bool operator== ( const ManagedBuffer &  lhs, const ManagedBuffer &  rhs  )

friend

Equality operator for ManagedBuffer. True when the containers are identical.

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The documentation for this class was generated from the following file:

• include/Pothos/Framework/ManagedBuffer.hpp