RSocket receive data problem.

[hepower]

hi all,

I have a problem in receiving data using RSocket base on RFCOMM,
I am using RecvOneOrMore() to read data, but I want to know the ending of receiving a package.
Doc said that:
TRequestStatus &aStatus On completion, KErrNone if successful, otherwise one of the system wide error codes. Note that KErrEof indicates either that a remote connection is closed, and that no more data is available for reading, or the socket has been shutdown with option RSocket::EStopInput.

but even no data available to read, I call RecvOneOrMore(), the aStatus is -2147483647 , NOT KErrEof.

how can I know the receiving is ending with out judge data received.

thanks.

[hepower]

void CConnector::WaitAndReceive()
    {
    // cancel pending operations
    iSock.CancelRead();
    Cancel();
    // receive data from socket
    iState=EWaiting;
    iBufferRead.Zero();
    iSock.RecvOneOrMore(iBufferRead, 0, iStatus, iLen);
    LOGARG("WaitAndReceive Status = %d length = %d",iStatus.Int(),iLen());
    /*
    if(iLargeData)
    {
    	iBufferLarge.Zero();
    	iSock.Recv(iBufferLarge,0,iStatus,iLen);
    }
    else
    {
    	iSock.Recv(iBuffer,0,iStatus,iLen);
    }
    */
    SetActive();
    }