Class RMsvReadStream

class RMsvReadStream : public RReadStream;

Description

Accesses the streams in a message store with read access.

Before it is used, a CMsvStore must have been opened on the message store with read or read/write access.

This class is intended for use by MTM implementations to store MTM-specific information. Message client applications access the store through the higher-level functions provided by Client-side and User Interface MTMs.

Most of its functionality is provided by the base class RReadStream.

Derivation

• RReadStream - ...

• RMsvReadStream - Accesses the streams in a message store with read access.

Members

Defined in RMsvReadStream:

• OpenL(const CMsvStore &,TUid)Prepares an existing stream with UID for reading.
• OpenLC(const CMsvStore &,TUid)Prepares an existing stream with UID for reading.

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 CMsvStore &aMsvStore, TUid aUid);

Description

Prepares an existing stream with UID for reading.

After this function has been called, the stream can be read from with the functions provided by the RReadStream base class.

Parameters

const CMsvStore &aMsvStore The CMsvStore the stream is in. TUid aUid The UID of the stream to open with read access

Leave codes

KErrNotFound There is no stream with UID aUid Other Standard stream leave codes.

IMPORT_C void OpenLC(const CMsvStore &aMsvStore, TUid aUid);

Description

Prepares an existing stream with UID for reading.

After this function has been called, the stream can be read from with the functions provided by the RReadStream base class.

The object is placed on the cleanup stack.

Parameters

const CMsvStore &aMsvStore The CMsvStore the stream is in. TUid aUid The UID of the stream to open with read access

Leave codes

KErrNotFound There is no stream with UID aUid Other Standard stream leave codes.