/** Reads a descriptor setting.
@param aKey Key of setting to be read.
@param aValue Returns the value of the setting if it is a descriptor.
@return
KErrNone if successful,
KErrNotFound if the setting does not exist,
KErrArgument if the setting exists but is not a descriptor,
KErrOverflow if the descriptor is too small to receive the value in the repository,
plus other system-wide error codes.
@post Transactions fail only on those "other system-wide error codes".
@capability Dependent Caller must satisfy the read access policy of that key in the repository.
*/
EXPORT_C TInt CRepository::Get(TUint32 aKey, TDes16& aValue)
{
TPtr8 ptr8((TUint8*)aValue.Ptr(), 0, aValue.MaxSize());
TInt ret=Get(aKey,ptr8);
if (ret==KErrNone)
aValue.SetLength(ptr8.Length()/2);
return ret;
}
/** Reads a descriptor setting.
@param aKey Key of setting to be read.
@param aValue Returns the value of the setting if it is a descriptor.
@param aActualLength Returns the actual length of the setting if it is a descriptor.
@return
KErrNone if successful,
KErrNotFound if the setting does not exist,
KErrArgument if the setting exists but is not a descriptor,
KErrOverflow if the descriptor is too small to receive the value in the repository,
plus other system-wide error codes.
@post Transactions fail only on those "other system-wide error codes".
@capability Dependent Caller must satisfy the read access policy of that key in the repository.
*/
EXPORT_C TInt CRepository::Get(TUint32 aKey, TDes16& aValue, TInt& aActualLength)
{
TInt actualLength8;
TPtr8 ptr8((TUint8*)aValue.Ptr(), 0, aValue.MaxSize());
TInt ret=Get(aKey,ptr8,actualLength8);
aValue.SetLength(ptr8.Length()/2);
aActualLength=actualLength8/2;
return ret;
}
void CMemSpyMemStreamReader::ReadL( TDes16& aDes )
{
// The kernel driver only ever writes narrow descriptors.
// However, we can expand them to be UCS2
const TInt length = ReadInt32L();
// Need to check the remaining text is actually present...
IsAvailableL( length );
// Set final length in descriptor
aDes.SetLength( length );
// Read each char
TUint16* dest = const_cast< TUint16* >( aDes.Ptr() );
for( TInt i=0; i<length; i++ )
{
*dest++ = *iCurrent++;
}
}
