TMTPTypeIntBase Class Reference

class TMTPTypeIntBase : public MMTPType

Defines the MTP signed integer data type base class for 8 to 32-bit integers. This class is intended for derivation.

Inherits from

Constructor & Destructor Documentation

TMTPTypeIntBase(TInt, TUint, TInt)

IMPORT_C TMTPTypeIntBase ( TInt aData,
TUint aSize,
TInt aType
) [protected]

Constructor.

Parameters

TInt aData The INT data with which the type is to be initialised.
TUint aSize The size of the INT data type.
TInt aType The INT data type code.

Member Functions Documentation

FirstReadChunk(TPtrC8 &)

IMPORT_C TInt FirstReadChunk ( TPtrC8 & aChunk ) const [virtual]

Initiates a data read sequence on the type by providing a const pointer to the first in the sequence of data chunks that make up the type's data stream. Subsequent chunks in the sequence can be sequentially retrieved using NextReadChunk. NextReadChunk .

Parameters

TPtrC8 & aChunk The const pointer to be set to point to the start of the first data chunk. This pointer's length is set to zero if no data chunk exists or a processing error occurs.

FirstWriteChunk(TPtr8 &)

IMPORT_C TInt FirstWriteChunk ( TPtr8 & aChunk ) [virtual]

Initiates a data write sequence on the type by providing a non-const pointer to the first in the sequence of data chunks that make up the type's data stream. Subsequent chunks in the sequence can be sequentially retrieved using NextWriteChunk. NextWriteChunk .

Parameters

TPtr8 & aChunk The non-const pointer to be set to point to the start of the first data chunk. If successful, the pointer's Length is set to zero, and MaxLength is set to the available capacity of the data chunk. If not successful, the pointer's MaxLength is set to zero.

NextReadChunk(TPtrC8 &)

IMPORT_C TInt NextReadChunk ( TPtrC8 & aChunk ) const [virtual]

Continues a data read sequence on the type by providing a const pointer to the next in the sequence of data chunks that make up the type's data stream. This data read sequence should have been previously initiated by invoking FirstReadChunk. FirstReadChunk .

Parameters

TPtrC8 & aChunk The const pointer to be set to point to the start of the next data chunk. This pointer's length is set to zero if no data chunk exists or a processing error occurs.

NextWriteChunk(TPtr8 &)

IMPORT_C TInt NextWriteChunk ( TPtr8 & aChunk ) [virtual]

Continues a data write sequence on the type by providing a non-const pointer to the next in the sequence of data chunks that make up the type's data stream. This data write sequence should have been previously initiated by invoking FirstWriteChunk. FirstReadChunk .

Parameters

TPtr8 & aChunk The non-const pointer to be set to point to the start of the next data chunk. If successful, the pointer's Length is set to zero, and MaxLength is set to the available capacity of the data chunk. If not successful, the pointer's MaxLength is set to zero..

Size()

IMPORT_C TUint64 Size ( ) const [virtual]

Provides the size in bytes of the MTP data type.

Type()

IMPORT_C TUint Type ( ) const [virtual]

Provides the MTP data type identification datacode.

Member Data Documentation

TInt iData

TInt iData [protected]

The data buffer.

TUint64 iSize

TUint64 iSize [private]

The type's size in bytes.

TUint iType

TUint iType [private]

The type's MTP datatype code.