In-Memory buffer for values. More...

Public Member Functions
void	allocate (DbrType type, DbrCount count, size_t num)
	Allocate buffer for num*(type,count) values. More...

DbrType	getDbrType () const

DbrCount	getDbrCount () const

size_t	getCapacity () const

size_t	getCount () const
	Number of values in the buffer, 0...(capacity-1)

void	reset ()
	Keep memory as is, but reset to have 0 entries.

size_t	getOverwrites () const
	Number of samples that had to be dropped.

RawValue::Data *	getNextElement ()
	Advance pointer to the next element and return it. More...

void	addRawValue (const RawValue::Data *raw_value)
	Copy a raw value into the buffer.

const RawValue::Data *	getRawValue (size_t i) const
	Get a pointer to value number i without removing it. More...

const RawValue::Data *	removeRawValue ()
	Return pointer to the oldest value in the buffer and remove it. More...

void	dump () const
	dump

Detailed Description

In-Memory buffer for values.

Each SampleMechanism has one to buffer the incoming values until they are written to the disk.

Member Function Documentation

void CircularBuffer::allocate	(	DbrType	type,
		DbrCount	count,
		size_t	num
	)

Allocate buffer for num*(type,count) values.

size_t CircularBuffer::getCapacity ( ) const

inline

That is: max. number of elements.

DbrCount CircularBuffer::getDbrCount ( ) const

inline

DbrType CircularBuffer::getDbrType ( ) const

inline

RawValue::Data* CircularBuffer::getNextElement ( )

Advance pointer to the next element and return it.

This allows you to fiddle with that element yourself, otherwise see addRawValue.

const RawValue::Data* CircularBuffer::getRawValue ( size_t i ) const

Get a pointer to value number i without removing it.

const RawValue::Data* CircularBuffer::removeRawValue ( )

Return pointer to the oldest value in the buffer and remove it.

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

/home/malitsky/projects/epics-archiver/sourceforge/trunk/ea4-cpp/include/common/engine/CircularBuffer.h