| class MStreamInput |
An interface to an object that acts as a target for read operations from a stream. The object behaves as a generic data sink.
A stream input object can act as an intelligent buffer, and is useful for performing filtering, compression or any other general kind of conversion operation that might be needed after reading from a stream.
The class is pure interface and requires an implementation.
| Public Member Functions | |
|---|---|
| TInt | PushL(const TAny *, TInt) |
| TStreamTransfer | ReadFromL(MStreamBuf &, TStreamTransfer) |
| TInt | PushL | ( | const TAny * | aPtr, |
| TInt | aMaxLength | |||
| ) | [pure virtual] | |||
Reads data from an intermediate buffer into this stream input object.
This function is called by the default implementation of TStreamBuf::DoReadL(MStreamInput&,TStreamTransfer) and assumes that the source is a stream buffer's intermediate buffer.
The amount of data read.
| TStreamTransfer | ReadFromL | ( | MStreamBuf & | aSource, |
| TStreamTransfer | aTransfer | |||
| ) | [pure virtual] | |||
Reads data from the specified stream into this stream input object.
This function is called by the default implementation of MStreamBuf::DoReadL(MStreamInput&,TStreamTransfer). It may also be called by TStreamBuf::DoReadL(MStreamInput&,TStreamTransfer), depending on the amount of data to be transferred and the nature of the buffering scheme.
The amount of data that was not consumed.
| MStreamBuf & aSource | The stream from which data is to be read. |
| TStreamTransfer aTransfer | Defines the amount of data available to be read. |