BFifo< Type > Class Template Reference

#include <BFifo.h>

Public Member Functions
	BFifo (BUInt size)
	~BFifo ()
void	clear ()
BUInt	size ()
	Returns fifo size.
BError	resize (BUInt size)
	Resize FIFO, clears it as well.
BUInt	writeAvailable ()
	How many items that can be written.
BUInt	writeAvailableChunk ()
	How many items that can be written in a chunk.
BError	write (const Type v)
	Write a single item.
BError	write (const Type *data, BUInt num)
	Write a set of items. Can only write a maximum of writeAvailableChunk() to save going beyond end of FIFO buffer.
Type *	writeData ()
	Returns a pointer to the data.
Type *	writeData (BUInt &num)
	Returns a pointer to the data and how many can be written in a chunk.
void	writeDone (BUInt num)
	Indicates when write is complete.
void	writeBackup (BUInt num)
	Backup, remove num items at end of fifo. Careful, make sure read is not already happening.
BUInt	readAvailable ()
	How many items are available to read.
BUInt	readAvailableChunk ()
	How many items are available to read in a chunk.
Type	read ()
	Read one item.
BError	read (Type *data, BUInt num)
	Read a set of items.
Type	readPos (BUInt pos)
	Read item at given offset from current read position.
Type *	readData ()
	Returns a pointer to the data.
Type *	readData (BUInt &num)
	Returns a pointer to the data and how many can be read in a chunk.
void	readDone (BUInt num)
Type &	operator[] (int pos)
	Direct access to read samples in buffer.

Protected Attributes
BMutex	olock
BUInt	osize
	The size of the FIFO.
Type *	odata
	FIFO memory buffer.
BUInt	owritePos
	The write pointer.
BUInt	oreadPos
	The read pointer.

Constructor & Destructor Documentation

BFifo()

template<class Type >

BFifo< Type >::BFifo

(

BUInt

size

)

~BFifo()

template<class Type >

BFifo< Type >::~BFifo

(

)

Member Function Documentation

clear()

template<class Type >

void BFifo< Type >::clear

(

)

operator[]()

template<class Type >

Type & BFifo< Type >::operator[]

(

int

pos

)

Direct access to read samples in buffer.

read() [1/2]

template<class Type >

Type BFifo< Type >::read

(

)

Read one item.

read() [2/2]

template<class Type >

BError BFifo< Type >::read	(	Type *	data,
		BUInt	num
	)

Read a set of items.

readAvailable()

template<class Type >

BUInt BFifo< Type >::readAvailable

(

)

How many items are available to read.

readAvailableChunk()

template<class Type >

BUInt BFifo< Type >::readAvailableChunk

(

)

How many items are available to read in a chunk.

readData() [1/2]

template<class Type >

Type * BFifo< Type >::readData

(

)

Returns a pointer to the data.

readData() [2/2]

template<class Type >

Type * BFifo< Type >::readData

(

BUInt &

num

)

Returns a pointer to the data and how many can be read in a chunk.

readDone()

template<class Type >

void BFifo< Type >::readDone

(

BUInt

num

)

readPos()

template<class Type >

Type BFifo< Type >::readPos

(

BUInt

pos

)

Read item at given offset from current read position.

resize()

template<class Type >

BError BFifo< Type >::resize

(

BUInt

size

)

Resize FIFO, clears it as well.

size()

template<class Type >

BUInt BFifo< Type >::size

(

)

Returns fifo size.

write() [1/2]

template<class Type >

BError BFifo< Type >::write	(	const Type *	data,
		BUInt	num
	)

Write a set of items. Can only write a maximum of writeAvailableChunk() to save going beyond end of FIFO buffer.

write() [2/2]

template<class Type >

BError BFifo< Type >::write

(

const Type

v

)

Write a single item.

writeAvailable()

template<class Type >

BUInt BFifo< Type >::writeAvailable

(

)

How many items that can be written.

writeAvailableChunk()

template<class Type >

BUInt BFifo< Type >::writeAvailableChunk

(

)

How many items that can be written in a chunk.

writeBackup()

template<class Type >

void BFifo< Type >::writeBackup

(

BUInt

num

)

Backup, remove num items at end of fifo. Careful, make sure read is not already happening.

writeData() [1/2]

template<class Type >

Type * BFifo< Type >::writeData

(

)

Returns a pointer to the data.

writeData() [2/2]

template<class Type >

Type * BFifo< Type >::writeData

(

BUInt &

num

)

Returns a pointer to the data and how many can be written in a chunk.

writeDone()

template<class Type >

void BFifo< Type >::writeDone

(

BUInt

num

)

Indicates when write is complete.

Member Data Documentation

odata

template<class Type >

Type* BFifo< Type >::odata

protected

FIFO memory buffer.

olock

template<class Type >

BMutex BFifo< Type >::olock

protected

oreadPos

template<class Type >

BUInt BFifo< Type >::oreadPos

protected

The read pointer.

osize

template<class Type >

BUInt BFifo< Type >::osize

protected

The size of the FIFO.

owritePos

template<class Type >

BUInt BFifo< Type >::owritePos

protected

The write pointer.

---

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

• /src/cern/tms/tms/beam/libBeam/BFifo.h