networkstream

This question is not about designs or patterns and which to use. The heart of this question is about what is happening regarding threads and blocking. This example is to apply to any blocking method that is designed to perform the same action continuously. In this case it is a blocking read or write on a networkstream. Is there any appreciable difference behind the scenes as to threading and performance between the methods? My assumption is that each of the methods below creates a thread or uses a pooled thread. Then blocks that thread until there is data to be read. Having said that and in

I am experimenting with the Tcp connections in .NET and I would like to send some data that is larger than the SendBufferSize proporty of the TcpClient object. Is it possible to send the data by simply writing to the network stream or do I need to cut it in pices and send those and at the other end create it again? From MSDN : If the network buffer is smaller than the amount of data you provide the Write method, several network send operations will be performed for every call you make to the Write method. You only need to call Write once, the TcpClient will handle splitting it into multiple

i'm having the the post's title error when trying to write a file on a window folder , mounted on unix system. I've developed a web service which runs inside a Tomcat 6 on a linux os and need to write on a windows network folder. System administrators have mounted it on the Linux sever and have no problem to create and modify a file on it. When i try to execute the posted code i get the following exception : Permission denied java.io.IOException: Permission denied at java.io.UnixFileSystem.createFileExclusively(Native Method) at java.io.File.createNewFile(File.java:850) The weird thing is that

I tried to understand the MSDN example for NetworkStream.EndRead(). There are some parts that i do not understand. So here is the example (copied from MSDN ): // Example of EndRead, DataAvailable and BeginRead. public static void myReadCallBack(IAsyncResult ar ){ NetworkStream myNetworkStream = (NetworkStream)ar.AsyncState; byte[] myReadBuffer = new byte[1024]; String myCompleteMessage = ""; int numberOfBytesRead; numberOfBytesRead = myNetworkStream.EndRead(ar); myCompleteMessage = String.Concat(myCompleteMessage, Encoding.ASCII.GetString(myReadBuffer, 0, numberOfBytesRead)); // message

I am trying to use NetworkStream.ReadAsync() to read data but I cannot find how to cancel the ReadAsync() once called. For background, the NetworkStream is provided to me by a connected BluetoothClient object (from 32Feet.NET Bluetooth Library). The current get-it-working code I'm trying is below. int bytesRead; while (this.continueReading) { bytesRead = await this.stream.ReadAsync(this.buffer, 0, (int)this.buffer.Length); Console.WriteLine("Received {0} bytes", bytesRead); } Console.WriteLine("Receive loop has ended"); The code works fine receiving data, and will stop looping if the

I just asked a question on how to send data larger than the SendBufferSize and the answer was that is would be send in a couple of parts. My second question is how will this data be received? Will it be complete in the network stream or will it get it divided. the first question: Can you send a file larger that the SendBufferSize throuh a TcpClient? TCP is not a message only protocol. It is a stream based protocol and takes care of splitting the data for us. Lemme take you to the core section. There are two parts in the case of TCP - Segmentation and Fragmentation. Segmentation happens at TCP

I can think of these possible answers: Until the data is written to some internal buffer in the IP stack. Until the data is sent over the wire. Until a confirmation of reception is received from the other machine. Until data is written to the send buffer on the sender side. So if buffer is full, it will block. The send buffer can be full if it didn't transmit data yet, because of network issues or because receive buffer is full on the receiver side. There is an experiment you can conduct: make a sender and receiver, set sender's socket send buffer to something small and receiver's receive

I'm reading the documentation on TcpClient.Close() and noticed this: Calling this method will eventually result in the close of the associated Socket and will also close the associated NetworkStream that is used to send and receive data if one was created. So, correct me if I'm wrong but this says that if one calls Close() on the TcpClient that the NetworkStream will also be closed. So then why at the end of the code example are both Close() called? networkStream.Close(); tcpClient.Close(); Would it be just as fine to only call tcpClient.Close(); ? Responding to this question since no one else