Based on this example, here’s a simple network client-server pair using Swing. Note some issues related to correct synchronization: The GUI itself is constructed on the event dispatch thread using invokeLater(). In addition, the code relies on the thread safety of append(). Finally, it incorporates a handy tip from the article Text Area Scrolling. Update: … Read more
This error can occur when the local network system aborts a connection, such as when WinSock closes an established connection after data retransmission fails (receiver never acknowledges data sent on a datastream socket). See this MSDN article. See also Some information about ‘Software caused connection abort’.
Welcome to the wonderful world of portability… or rather the lack of it. Before we start analyzing these two options in detail and take a deeper look how different operating systems handle them, it should be noted that the BSD socket implementation is the mother of all socket implementations. Basically all other systems copied the … Read more
This is because require() does not exist in the browser/client-side JavaScript. Now you’re going to have to make some choices about your client-side JavaScript script management. You have three options: Use the <script> tag. Use a CommonJS implementation. It has synchronous dependencies like Node.js Use an asynchronous module definition (AMD) implementation. CommonJS client side-implementations include … Read more
Just from reading the code, I think your problem should be solved by changing the line that have caused the error with this one : sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); socket() is a function and not a class to try to instantiate it. Make sure that you have already declared “sock” variable as an instance … Read more
As the documentation says: If supplied, source_address must be a 2-tuple (host, port) for the socket to bind to as its source address before connecting. If host or port are ‘’ or 0 respectively the OS default behavior will be used. In other words, it’s used when you need to bind the socket before connecting. … Read more
Well…no, there wouldn’t be, ServerSockets don’t have streamed input/output. A ServerSocket accepts connections, creating a Socket for each connection received (see accept), which is where the streams for that connection are.
All of the possibilities are wrong to first order. This is a bad exam question and you may tell your instructor I said so. (a) is the least wrong answer. getservbyname could be used by a generic TCP client to determine what port of a server to connect to, given a textual service name. However, … Read more
listenfd = lacz_tcp(wiadomosc->port); From what I can tell, the port has not been initialized before you call bind. Log the port to be sure that the server is listening on the correct port.