/*
* 接收数据
* 拷贝数据
*/
internal static void CopySocketFile(FileStream fos, judpClient target, long size, bool flush)
{
byte[] buf = new byte[bufsize];
int c = 0;
long read = 0;
while (true)
{
c = target.read(buf);
if (c < 0)
{
break;
}
try
{
read += c;
fos.WriteAsync(buf, 0, c);
if (flush)
{
fos.Flush();
}
if (read >= size && size > -1)
{
break;
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
if (!flush)
{
try {
fos.Flush();
} catch (IOException e) {
Console.WriteLine(e.Message);
}
}
}
/// <summary>
/// 开始接收
/// </summary>
public void Start()
{
try
{
UDTReceiver.connectionExpiryDisabled = true;
//UDTClient client=localPort!=-1?new UDTClient(myHost,localPort):new UDTClient(myHost);
judpClient client = new judpClient(localIP, localPort);
client.Connect(serverHost, serverPort);
Console.WriteLine("[ReceiveFile] Requesting file " + remoteFile);
string reqFile = remoteFile;
string rspFile = localFile;
Thread recfile = new Thread(() =>
{
byte[] fName = Encoding.UTF8.GetBytes(remoteFile);
//send file name info
byte[] nameinfo = new byte[fName.Length + 4];
Array.Copy(ApplicationCode.Encode(fName.Length), 0, nameinfo, 0, 4);
Array.Copy(fName, 0, nameinfo, 4, fName.Length);
client.SendData(nameinfo);
client.PauseOutput();
//read size info (an 64 bit number)
byte[] sizeInfo = new byte[8];
int total = 0;
while (total < sizeInfo.Length)
{
int r = client.read(sizeInfo);
if (r < 0)
{
break;
}
total += r;
}
long size = ApplicationCode.decode(sizeInfo, 0);
// File file = new File(new string(rspFile));
Console.WriteLine("[ReceiveFile] Write to local file <" + rspFile + ">");
FileStream fos = null;
try
{
fos = new FileStream(rspFile, FileMode.Append);
Console.WriteLine("[ReceiveFile] Reading <" + size + "> bytes.");
long start = DateTime.Now.Ticks;
ApplicationCode.CopySocketFile(fos, client, size, false);
long end = DateTime.Now.Ticks;
double rate = 1000.0 * size / 1024 / 1024 / (end - start);
Console.WriteLine("[ReceiveFile] Rate: " + rate.ToString(format) + " MBytes/sec. "
+ (8 * rate).ToString(format) + " MBit/sec.");
Console.WriteLine("接收文件完成：" + rspFile);
client.Close();
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
finally
{
try
{
fos.Close();
}
catch (IOException e)
{
Console.WriteLine(e);
}
}
});
recfile.IsBackground = true;
recfile.Name = ("文件接收_" + localFile);
recfile.Start();
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
}
