I need to Send & Recv at the same time, which should be the best: 1 thread handling send & recv with non-blocking socket or 2 threads with One handling blocking recv() + one handling send() Or is there another option? I am expecting to have up to about 50 2 way connections.. Which result in 50 thread in option1, and 100 thread in opt...
I've worked in business application development for a while but have never done socket programming. I know that all HTTP transport implicitly involves socket communication but this is all abstracted when using most software frameworks. So I was curious what types of apps developed today involve socket programming? ...
I've got Java code which makes a long term socket connection to a home automation device to monitor it for activity/events. The problem is if the device is rebooted or gets power cycled the Java code should automatically reconnect as soon as possible. Any ideas for how to detect a dropped connection on the Java side, preferably without...
I want to be able to asynchronously wait on socket, then synchronously read from it: for (;;) { while (data available on socket) { read message from socket; process it; } do something else; } (I need this because I want to poll a queue with messages from GUI at the same time, so the "do something else...
Hello; When a server accepts a client over a tcp/ip connection, a new socket is created. Is it safe to use the LocalEndPoint port (from the client perspective) as an id? Example (from the server perspective): int clientId = ((IPEndPoint)client.RemoteEndPoint).Port; On my local machine, the port seems to be unique, but with multiple cl...
I use python 2.4.1 on Linux, and a python package written inside the company I work in, for establishing a connection between 2 hosts for test purposes. Upon establishing the connection the side defined as the client side failed when calling socket.connect with the correct parameters (I checked) with the error code 111. After searching ...
Hi All, I have a network application that I need to convert so that it works for ipv6 network. Could you please let me know what I need to do (replace socket APIs)? One more thing, how can I test my application? Thanks. ...
The application I'm currently working on requires three ports to be opened. At the moment these are 5024 through 5026 but on reading around I discovered that these lie in the ICANN registered range (i.e. ports < 49151). Is there any need for me to inform any organisation that I plan to use these ports if it's within a local network only...
I've been playing with message queues (System V, but POSIX should be ok too) in Linux recently and they seem perfect for my application, but after reading The Art of Unix Programming I'm not sure if they are really a good choice. http://www.faqs.org/docs/artu/ch07s02.html#id2922148 The upper, message-passing layer of System V IPC ha...
Hi; I was reading an article on Vadym Stetsiak's blog about how to transfer variable length messages with async sockets (url: http://vadmyst.blogspot.com/2008/03/part-2-how-to-transfer-fixed-sized-data.html). He says : What to expect when multiple messages arrive at the server? While dealing with multiple messages one has to reme...
Hi all, I have a socket that is receiving HTTP requests. So I have a raw http request in byte[] form from my socket. I have to study this request - BUT Instead of reinventing the wheel - can I 'cast' this byte array into a System.Net.HttpWebRequest or something similar? Thanks! ----- UPDATE --------- So anyway I couldn't find the ...
I am trying to set the DF (don't fragment flag) for sending packets using UDP. Looking at the Richard Steven's book Volume 1 Unix Network Programming; The Sockets Networking API, I am unable to find how to set this. I suspect that I would do it with setsockopt() but can't find it in the table on page 193. Please suggest how this is do...
Hi, I'm doing a little research in developing a simple socket server that will run as a windows service. I'm going to write this in C#, but I've been made aware that .Net sockets are slllooooowwwww. For the initial roll out using the .Net Networking classes will be fine, but I'm wondering if anyone has experience with a high performanc...
I am currently in the early stages of designing a browser based game using silverlight. The game is going to have many matches of 2-4 players (perhaps even up to 8) and will be turn based. The Front end is Silverlight 3.0 since I have some experience there. I am trying to figure out what the back end should be. Since the game is turn b...
Hello, I now have a small java script server working correctly, called by: <?php $handle = fsockopen("udp://78.129.148.16",12345); fwrite($handle,"vzctlrestart110"); fclose($handle); ?> On a remote server the following python server is running and executing the comand's #!/usr/bin/python import os import socket print " Loadin...
I have a simple badly behaved server (written in Groovy) ServerSocket ss = new ServerSocket(8889); Socket s = ss.accept() Thread.sleep(1000000) And a client who I want to have timeout (since the server is not consuming it's input) Socket s = new Socket("192.168.0.106", 8889) s.setSoTimeout(100); s.getOutputStream.write( new byte[100...
$socket = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP); socket_bind($socket, $ip_server , $port); socket_sendto($socket, $ascii_egyben_kimenet, strlen($ascii_egyben_kimenet), 0, $ip_plc , $port); $valasz_kimenet=socket_read($socket, 256); Because the socket_read the server is waiting for an answer... How I can define the max time to wa...
I want to implement IPC in a Cocoa application using UNIX domain sockets, with which I have no experience. I found Apple's CFLocalServer example project, but it's written in C and looks, well, fairly complicated (and yes, I have read most of it). Are the techniques demonstrated in CFLocalServer still state-of-the-art, or is there a way...
Hello, I'm currently working on a TCP socket server in C++; and I'm trying to figure out how I can ignore all browser connections made to my server. Any idea's? Thanks. ...
Hey folks, I have created server daemon, that produces some data, like messages and so. But, what im interested in - client monitoring. For example i have web page, and i need to establish persistent Tcp connection to server and show all incoming data into textbox. I know it can be done with flash, but im searching for JS implementation...