Class RStoreReadStream

class RStoreReadStream : public RReadStream;

Description

Supports the opening and manipulation of an existing stream in a store.

Derivation

• RReadStream - ...

• RStoreReadStream - Supports the opening and manipulation of an existing stream in a store.

Members

Defined in RStoreReadStream:

• OpenL(const CStreamStore &,TStreamId)Opens and prepares an existing stream for reading. The function leaves if it can...
• OpenLC(const CStreamStore &,TStreamId)Opens and prepares an existing stream for reading, leaving a cleanup item on the...

Inherited from RReadStream:

• Attach(MStreamBuf *)Sets the stream buffer source for this read stream. The existing source (if ther...
• Close()Frees resources used by the stream.
• Detach()Sets the stream buffer source for this read stream to NULL. The existing source,...
• Pop()Removes the cleanup item for this read stream object from the cleanup stack.
• PushL()Puts a cleanup item for this read stream object onto the cleanup stack. This all...
• RReadStream(MStreamBuf *)Constructs a read stream over the supplied stream buffer.
• ReadInt16L()Internalises a TInt16 value. The function reads a 16 bit value from this stre...
• ReadInt32L()Internalises a TInt32 value. The function reads a 32 bit value from this stre...
• ReadInt8L()Internalises a TInt8 value The function reads an 8 bit value from this stream...
• ReadL(RWriteStream &)Writes the content of this stream to the specified write stream.
• ReadL(RWriteStream &,TInt)Writes the content of this stream to the specified write stream.
• ReadL(TDes16 &)Reads sufficient data from this stream to fill the specified 16 bit descriptor u...
• ReadL(TDes16 &,TChar)Reads data from this stream into the 16 bit descriptor, until either the specifi...
• ReadL(TDes16 &,TInt)Reads data of specified length from this stream into the specified 16 bit descri...
• ReadL(TDes8 &)Reads sufficient data from this stream to fill the specified 8 bit descriptor up...
• ReadL(TDes8 &,TChar)Reads data from this stream into the 8 bit descriptor, until either the specifie...
• ReadL(TDes8 &,TInt)Reads data of specified length from this stream into the specified 8 bit descrip...
• ReadL(TInt)Discards data of specified length read from this stream.
• ReadL(TUint16 *,TInt)Reads data of specified length from this stream into the specified 16 bit descri...
• ReadL(TUint8 *,TInt)Reads data of specified length from this stream into the location defined by the...
• ReadReal32L()Internalises a TReal32 value. The function reads a 32 bit value from this str...
• ReadReal64L()Internalises a TReal64 value. The function reads a 64 bit value from this str...
• ReadUint16L()Internalises a TUint16 value. The function reads a 16 bit value from this str...
• ReadUint32L()Internalises a TUint32 value. The function reads a 32 bit value from this str...
• ReadUint8L()Internalises a TUint8 value. The function reads an 8 bit value from this stre...
• Release()Frees resources before abandoning the stream.
• Source()Gets the underlying stream buffer for the read stream. This provides access to t...

IMPORT_C void OpenL(const CStreamStore &aStore, TStreamId anId);

Description

Opens and prepares an existing stream for reading. The function leaves if it cannot complete successfully.

Parameters

const CStreamStore &aStore A reference to the store containing the stream with the specified stream id. TStreamId anId The stream id of the stream to be read.

IMPORT_C void OpenLC(const CStreamStore &aStore, TStreamId anId);

Description

Opens and prepares an existing stream for reading, leaving a cleanup item on the cleanup stack. The function leaves if it cannot complete successfully.

Placing a cleanup item for the RStoreReadStream onto the cleanup stack allows allocated resources to be cleaned up if a subsequent leave occurs.

Parameters

const CStreamStore &aStore A reference to the store containing the stream with the specified id. TStreamId anId The stream id of the stream to be read.