question: CodedInputStream vs NSInputStream about protobuf-swift HOT 4 CLOSED

    self.host = host
    self.port = port

    NSStream.getStreamsToHostWithName(host, port: port, inputStream: &inputStream, outputStream: &outputStream)

    if inputStream != nil && outputStream != nil {

        // Set delegate
        inputStream!.delegate = self
        outputStream!.delegate = self

        // Schedule
        inputStream!.scheduleInRunLoop(.mainRunLoop(), forMode: NSDefaultRunLoopMode)
        outputStream!.scheduleInRunLoop(.mainRunLoop(), forMode: NSDefaultRunLoopMode)

        println("Start open()")

        // Open!
        inputStream!.open()
        outputStream!.open()
    }
}

             // Here you can `read()` from `inputStream`
            if ( aStream == inputStream){
            var buffer = [UInt8](count: 4096, repeatedValue: 0)
                            while (inputStream!.hasBytesAvailable){
                                var len = inputStream!.read(&buffer, maxLength: buffer.count)
                               // ...
                                }
                            }
            }
            break

        case NSStreamEvent.HasSpaceAvailable:
            println("input: HasSpaceAvailable")
            break
        case NSStreamEvent.allZeros:
            println("input: allZeros")
            break

        default:
            println("input: default break")
            break

        }
    }
    else if aStream === outputStream {
        switch eventCode {
        case NSStreamEvent.ErrorOccurred:
            println("output: ErrorOccurred: \(aStream.streamError?.description)")
            break
        case NSStreamEvent.EndEncountered:
            println("output: OpenCompleted")
            break
        case NSStreamEvent.None:
           println("output: None")
            break
        case NSStreamEvent.OpenCompleted:
            println("output: OpenCompleted")
            break
        case NSStreamEvent.HasBytesAvailable:
            println("output: HasBytesAvailable")
            break
        case NSStreamEvent.HasSpaceAvailable:
            // Here you can write() to `outputStream`
            break

        case NSStreamEvent.allZeros:
            println("output: allZeros")
            break

        default:
            println("output: default break")
            break
        }
    }
}