Pothos::ManagedBuffer Class Reference

#include <ManagedBuffer.hpp>

Classes
struct	Impl

Public Member Functions
	ManagedBuffer (void)
	ManagedBuffer (const SharedBuffer &buff)
	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) noexcept
	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
void	setNextBuffer (const ManagedBuffer &next)
ManagedBuffer	getNextBuffer (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

ManagedBuffer() [1/4]

Pothos::ManagedBuffer::ManagedBuffer ( void  )

inline

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

ManagedBuffer() [2/4]

Pothos::ManagedBuffer::ManagedBuffer

(

const SharedBuffer &

buff

)

Create from a shared buffer with no manager.

~ManagedBuffer()

Pothos::ManagedBuffer::~ManagedBuffer ( void  )

inline

ManagedBuffer destructor.

ManagedBuffer() [3/4]

Pothos::ManagedBuffer::ManagedBuffer ( const ManagedBuffer &  obj )

inline

ManagedBuffer copy constructor.

ManagedBuffer() [4/4]

Pothos::ManagedBuffer::ManagedBuffer ( ManagedBuffer &&  obj )

inlinenoexcept

ManagedBuffer move constructor.

Member Function Documentation

getBuffer()

const Pothos::SharedBuffer & Pothos::ManagedBuffer::getBuffer ( void  ) const

inline

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

Returns

a const reference to the buffer

getBufferManager()

std::shared_ptr< Pothos::BufferManager > Pothos::ManagedBuffer::getBufferManager ( void  ) const

inline

Get the associated buffer manager.

getNextBuffer()

Pothos::ManagedBuffer Pothos::ManagedBuffer::getNextBuffer ( void  ) const

inline

Get the next contiguous buffer in the chain. Or return a null managed buffer if there is none.

getSlabIndex()

size_t Pothos::ManagedBuffer::getSlabIndex ( void  ) const

inline

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.

operator bool()

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

inlineexplicit

Is this managed buffer valid?

Returns

true if it holds an allocation.

operator<()

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

inline

sortable operator for ManagedBuffer

operator=() [1/2]

Pothos::ManagedBuffer & Pothos::ManagedBuffer::operator= ( const ManagedBuffer &  obj )

inline

ManagedBuffer copy assignment.

operator=() [2/2]

Pothos::ManagedBuffer & Pothos::ManagedBuffer::operator= ( ManagedBuffer &&  obj )

inline

ManagedBuffer move assignment.

reset() [1/2]

void Pothos::ManagedBuffer::reset ( void  )

inline

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

reset() [2/2]

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

setNextBuffer()

void Pothos::ManagedBuffer::setNextBuffer ( const ManagedBuffer &  next )

inline

Set the next contiguous buffer in the chain.

unique()

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

useCount()

size_t Pothos::ManagedBuffer::useCount ( void  ) const

inline

The number of copies of the managed buffer.

Friends And Related Function Documentation

operator==

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