Multi-threaded download issues

叛神者一鲱鱼

The program has 5 download threads, each download thread downloads different resources, but it can only support up to two download threads. When the third download thread starts, the system will crash. Is there any way to solve it?

苹果小刀

It should not be the reason for the limitation of the number of threads, it should be other reasons!
I do not know how your program?

yujunziling

The thread itself will not have this problem, upstairs

kalian2000

Can only support up to two threads?

It's not possible...

kalian2000

TO: The system will crash when the third download thread starts

What do you mean by a system crash?

老子不是人

It should not be, this download is precedent

叛神者一鲱鱼

private WebRequest httpRequest;
        private WebResponse httpResponse;
        private byte[] buffer;
        private Thread downloadThread;
        Stream ns;
        private FileStream fs;
        private long length;
        private long downlength = 0;
        private long lastlength = 0;
        public delegate void updateData(string value); //Set the delegate to update the main interface
        private int totalseconds = 0; //total time
        private updateData UIDel;
        private string filename = @"d:\sybaohj.wmv";
        private int DownLoadNumber = 0; //File download count

private void downloadFile()
        {
            ns = httpResponse.GetResponseStream();

            int i;
            UIDel = new updateData(updateUI);
            while ((i = ns.Read(buffer, 0, buffer.Length))> 0)
            {

                downlength += i;
                string value = downlength.ToString();
                this.Invoke(UIDel, value);
                fs.Write(buffer, 0, i);
            }
            speedlabel1.Text = "Download complete";
        }
        /* private void show()
         {
             UIDel = new updateData(updateUI);
             int value = 0;
             while (value <= 100)
             {
                 this.progressBar1.Value = value;
                 value++;
             }
         }*/
        void updateUI(string value)
        {
            this.lensthlabel1.Text = "Download size:"+value;
            this.progressBar1.Value = Int32.Parse(value);
        }

Download the code and enter ``crash is that the system is not responding'' and it will not automatically shut down and exit

叛神者一鲱鱼

I searched with Baidu, ```found a friend and I have the same problem,'' the code is really okay```, but I don’t know why the thread exceeds 3 programs, it will not respond```I used to make 255 threads This problem has never occurred.

lumierek

Single CPU? Is the CPU occupied?