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POThread sleep C#
 

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    <p>I have a question about Threads, I got a multithread TCP accplication that have connections with multiple clients. The threads have operations that take quite long. (maybe a minute or so). How should I put my Sleeps to let all Threads have the same amount of time without puting delay if its for example only one thread runing?. </p> <pre><code>while(CanDoSomething) { DoIt(); //Can take all from a few seconds to a few minutes Thread.Sleep(100); } </code></pre> <p>Is this the best way to do the Sleeps? Or should I give it a longer sleep-time? Does the other threads only get 100ms or does it give them the time to start and then finnish? Becouse I have a feeling that one thread get the work done much faster then the others... Is there anything else I can do to ensure they all get it done with the same priority?</p> <p>EDIT, MORE CODE:</p> <pre><code>private void ListenForClients() { try { this.tcpListener.Start(); while (true) { TcpClient client = this.tcpListener.AcceptTcpClient(); Connection c = new Connection(this.parent); connectionCollection.Add(c); Thread clientThread = new Thread(new ParameterizedThreadStart(c.HandleClientComm)); threadCollection.Add(clientThread); clientThread.Start(client); } } catch (Exception e) { } } public Connection() { this.todo = new ArrayList(); todoT = new Thread(handleToDo); todoT.Start(); } public void HandleClientComm(object client) { try { TcpClient server = (TcpClient)client; NetworkStream ns = server.GetStream(); byte[] data = new byte[1024]; string input, stringData; online = true; DateTime lastTime = DateTime.Now; while (true &amp;&amp; this.online) { try { if (lastTime.AddMinutes(2) &lt; DateTime.Now) break; data = new byte[1024]; if (ns.DataAvailable &amp;&amp; ns.CanRead) { int recv = ns.Read(data, 0, data.Length); if (recv &gt; 0) { lastTime = DateTime.Now; if ((byte)data[recv - 1] == (byte)255) { int cnt = -1; for (int i = 0; i &lt; recv; i++) { if (data[i] == (byte)254) { cnt = i; break; } } int nr = recv - cnt - 2; byte[] tmp = new byte[nr]; for (int i = 0; i &lt; nr; i++) { tmp[i] = data[cnt + i + 1]; } string crc = Encoding.UTF8.GetString(tmp); stringData = Encoding.UTF8.GetString(data, 0, cnt); MsgStruct msgs = new MsgStruct(stringData); msgs.setCrc(crc); Thread.Sleep(200); addTodo(msgs); if (msgs.getMsg()[0] == 'T' &amp;&amp; this.type == 1) this.parent.cStructHandler.sendAck(msgs, this.ID); Console.WriteLine(todo.Count); } } } if (parent.cStructHandler.gotMsg(this.ID)) { MsgStruct tmpCs = parent.cStructHandler.getNextMsg(this.ID); if (tmpCs.getMsg().Length != 0 &amp;&amp; ns.CanWrite) { byte[] ba = Encoding.UTF8.GetBytes(tmpCs.getMsg()); if (tmpCs.getCrc() == "") { ulong tmp = CRC.calc_crc(ba, ba.Length); tmpCs.setCrc(tmp.ToString("X")); } if (tmpCs.canSendByTimeout()) { string crcStr = "?" + tmpCs.getCrc() + "?"; byte[] bb = Encoding.UTF8.GetBytes(crcStr); crcStr = Encoding.UTF8.GetString(bb); byte[] fullMsg = new byte[ba.Length + bb.Length]; bb[0] = 254; bb[bb.Length - 1] = 255; ba.CopyTo(fullMsg, 0); bb.CopyTo(fullMsg, ba.Length); string s = System.Text.UTF8Encoding.ASCII.GetString(fullMsg); ns.Write(fullMsg, 0, fullMsg.Length); Thread.Sleep(200); if (!tmpCs.isAckNeeded()) parent.cStructHandler.removeNextMsg(this.ID); } } } Thread.Sleep(100); } catch (Exception e) { break; } } ns.Close(); server.Close(); dead = true; } catch (Exception e) { dead = true; } } public void handleToDo() { try { int cnt = 0; while (true) { if (todo.Count &gt; 0) { //SWITCH CASE FOR DIFFERENT MESSAGE TYPES, DOING TASKS DEPENDING ON WHAT ONES... Thread.Sleep(100); } else { if (dead) { todoT.Abort(); todoT = null; break; } } Thread.Sleep(200); } } } </code></pre> <p>Please ask questions if its unclear.</p> <p>/Nick</p>
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    1. COReal software doesn't Sleep(). Save it for Test and Demo. You need async I/O.
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      1. USHenk Holterman
    2. COApart from timers you can look into wait handles, async programming, notification events. Please don't use `Thread.Sleep` you are shooting yourself in a foot. Sleep is not reliable as it takes different amount of time for operation to complete in different PC and even on a single PC (depends on load for example)
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      1. USoleksii
    3. CONick3 it would be easier if you told as what are you trying to achieve in general. Do you want all threads to finish at once?
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      1. USKuba Wyrostek
 

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