public void Run()
{
try{
//open the UDPEndpoint
UDTClient client = new UDTClient();
int localPort = client.GetEndpoint().LocalPort;
//write the port to output
WriteToOut("OUT: " + localPort);
//read peer port from input file or stdin
string peerPortS = ReadFromIn();
int serverPort = int.Parse(peerPortS);
//connect...
client.Connect(serverIP, serverPort);
var inStream = client.GetInputStream();
//read file size info (an 4-byte int)
byte[] sizeInfo = new byte[4];
inStream.Read(sizeInfo);
long size = BitConverter.ToInt32(sizeInfo, 0);
//now read file data
FileStream fos = new FileStream(localFile, FileMode.Append);
try{
Util.CopyFileReceiver(fos, inStream, size, false);
}finally{
fos.Close();
}
}catch (Exception ex) {
}
}
public judpClient(int port)
{
try {
client = new UDTClient(port);
} catch (SocketException e) {
Console.WriteLine(e);
} catch (Exception e) {
Console.WriteLine(e);
}
}
public judpClient(string lcoalIP, int port)
{
try {
client = new UDTClient(port, lcoalIP);
} catch (SocketException e) {
Console.WriteLine(e);
} catch (Exception e) {
Console.WriteLine(e);
}
}
static void Main(string[] args)
{
UDTClient client = new UDTClient();
client.Connect("127.0.0.1", 7777);
while (true)
{
client.send(System.Text.Encoding.Default.GetBytes(DateTime.Now.ToString()));
Console.ReadLine();
}
}
public void RunReceive()
{
verbose = true;
try
{
UDTReceiver.connectionExpiryDisabled = true;
//IPAddress myHost = null;
//if (localIP != "")
//{
// myHost = IPAddress.Parse(localIP);
//}
//else
//{
// string hostname = Dns.GetHostName();
// IPHostEntry hostip = Dns.GetHostEntry(hostname);
// foreach (IPAddress ipaddress in hostip.AddressList)
// {
// if (ipaddress.ToString().IndexOf(':') < 0)//存在IPV6的地址，所以要判断
// {
// myHost = ipaddress;
// break;
// }
// }
//}
UDTClient client = new UDTClient(localPort);
client.connect(serverHost, serverPort);
UDTInputStream inputStream = client.getInputStream();//报错未将对象引用设置到对象的实例。
UDTOutputStream outputStream = client.getOutputStream();
Log.Write(this.ToString(), "[ReceiveFile] Requesting file " + remoteFile);
byte[] fName = Encoding.Default.GetBytes(remoteFile);
//send file name info
byte[] nameinfo = new byte[fName.Length + 4];
System.Array.Copy(Util.encode(fName.Length), 0, nameinfo, 0, 4);
System.Array.Copy(fName, 0, nameinfo, 4, fName.Length);
outputStream.Write(nameinfo, 0, nameinfo.Length);
outputStream.Flush();
//pause the sender to save some CPU time
outputStream.pauseOutput();
//存放文件长度信息
byte[] sizeInfo = new byte[8];
int total = 0;
while (total < sizeInfo.Length)
{
int r = inputStream.Read(sizeInfo, 0, sizeInfo.Length);
if (r < 0)
{
break;
}
total += r;
Thread.Sleep(50);
}
long size = Util.decode(sizeInfo, 0);
if (File.Exists(localFile))
{
File.Delete(localFile);
}
Log.Write(this.ToString(), "[ReceiveFile] Write to local file <" + localFile + ">");
FileStream os = new FileStream(localFile, FileMode.Create, FileAccess.Write);
try
{
Log.Write(this.ToString(), "[ReceiveFile] Reading <" + size + "> bytes.");
//( System.DateTime.UtcNow.Ticks - new DateTime(1970, 1, 1, 0, 0, 0).Ticks)/10000;
//如果要得到Java中 System.currentTimeMillis() 一样的结果，就可以写成 上面那样，也可以这样写：
// TimeSpan ts=new TimeSpan( System.DateTime.UtcNow.Ticks - new DateTime(1970, 1, 1, 0, 0, 0).Ticks);
//(long)ts.TotalMilliseconds;
TimeSpan ts_start = new TimeSpan(System.DateTime.UtcNow.Ticks - new DateTime(1970, 1, 1, 0, 0, 0).Ticks);
long start = (long)ts_start.TotalMilliseconds;
//接收文件数据
Util.copy(inputStream, os, size, false);
client.shutdown();
TimeSpan ts_end = new TimeSpan(System.DateTime.UtcNow.Ticks - new DateTime(1970, 1, 1, 0, 0, 0).Ticks);
long end = (long)ts_end.TotalMilliseconds;
double rate = 1000.0 * size / 1024 / 1024 / (end - start); //接收所用时间
Log.Write(this.ToString(), "[ReceiveFile] Rate: " + Math.Round(rate, 3) + " MBytes/sec. " + Math.Round(8 * rate, 3) + " MBit/sec.");
if (verbose)
{
Log.Write(this.ToString(), client.getStatistics().toString());
}
}
finally
{
os.Close();
}
}
catch (Exception ex)
{
Log.Write(this.ToString(), "RunReceive", ex);
}
}
public void Run()
{
Configure();
verbose = true;
try{
UDTReceiver.connectionExpiryDisabled = true;
UDTClient client = new UDTClient(localPort, localIP);
client.Connect(this.serverHost, this.serverPort);
UDTInputStream inStream = client.GetInputStream();
UDTOutputStream outStream = client.GetOutputStream();
Console.WriteLine("[ReceiveFile] Requesting file " + remoteFile);
byte[] fName = Encoding.UTF8.GetBytes(remoteFile);//兼容java
//send file name info
byte[] nameinfo = new byte[fName.Length + 4];
Array.Copy(Encode(fName.Length), 0, nameinfo, 0, 4);
Array.Copy(fName, 0, nameinfo, 4, fName.Length);
outStream.Write(nameinfo);
outStream.Flush();
//pause the sender to save some CPU time
outStream.PauseOutput();
//read size info (an 64 bit number)
byte[] sizeInfo = new byte[8];
int total = 0;
while (total < sizeInfo.Length)
{
int r = inStream.Read(sizeInfo);
if (r < 0)
{
break;
}
total += r;
}
//读取文件长度
long size = Decode(sizeInfo, 0);
FileInfo file = new FileInfo(localFile);
Console.WriteLine("[ReceiveFile] Write to local file <" + file.FullName + ">");
FileStream fos = new FileStream(file.FullName, FileMode.Append); //准备写入文件
try{
Console.WriteLine("[ReceiveFile] Reading <" + size + "> bytes.");
long start = DateTime.Now.Ticks;
//and read the file data
//Util.copy(in, os, size, false);
CopyFile(fos, inStream, 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.");
client.Shutdown();
if (verbose)
{
Console.WriteLine(client.GetStatistics());
}
}finally{
fos.Close();
}
}catch (Exception ex) {
//throw new RuntimeException(ex);
}
}