public PingResponseEventArgs(IPAddress serverAddress, PingResponseType result, int responseTime, int byteCount, bool cancel)
{
this.serverAddress = serverAddress;
this.result = result;
this.responseTime = responseTime;
this.byteCount = byteCount;
this.cancel = cancel;
}
public PingResponseEventArgs(IPAddress serverAddress, PingResponseType result, int responseTime, int byteCount, bool cancel)
{
this.serverAddress = serverAddress;
this.result = result;
this.responseTime = responseTime;
this.byteCount = byteCount;
this.cancel = cancel;
}
private void OnPingError(PingResponseType errorType, string message)
{
PingErrorEventHandler temp = PingError;
if (temp != null)
{
temp(this, new PingErrorEventArgs(errorType, message, DateTime.Now));
}
}
private void OnPingResponse(IPAddress serverAddress, PingResponseType result, int responseTime, int byteCount, ref bool cancel)
{
PingResponseEventHandler temp = PingResponse;
if (temp != null)
{
PingResponseEventArgs e = new PingResponseEventArgs(serverAddress, result, responseTime, byteCount, cancel);
temp(this, e);
cancel = e.Cancel;
}
}
private void OnPingError(PingResponseType errorType, string message)
{
PingErrorEventHandler temp = PingError;
if (temp != null)
{
temp(this, new PingErrorEventArgs(errorType, message, DateTime.Now));
}
}
private void OnPingResponse(IPAddress serverAddress, PingResponseType result, int responseTime, int byteCount,
ref bool cancel)
{
PingResponseEventHandler temp = PingResponse;
if (temp != null)
{
var e = new PingResponseEventArgs(serverAddress, result, responseTime, byteCount, cancel);
temp(this, e);
cancel = e.Cancel;
}
}
public PingErrorEventArgs(PingResponseType errorType, string message, DateTime errorDateTime)
{
this.errorType = errorType;
this.message = message;
this.errorDateTime = errorDateTime;
}
public PingErrorEventArgs(PingResponseType errorType, string message, DateTime errorDateTime)
{
this.errorType = errorType;
this.message = message;
this.errorDateTime = errorDateTime;
}
private PingResponse SendPackets(Socket socket, EndPoint client, EndPoint server, byte[] sendBuffer, int pingCount)
{
//Initialize PingResponse object
PingResponse response = new PingResponse(pingCount);
PingResponseType result = PingResponseType.Ok;
byte[] receiveBuffer = new Byte[256];
int byteCount = 0;
int start = 0;
int stop = 0;
response.PacketsReceived = 0;
response.PacketsSent = 0;
response.ServerEndPoint = (IPEndPoint)server;
response.ClientEndPoint = (IPEndPoint)client;
try
{
OnPingStarted((IPEndPoint)server, IcmpPacket.ICMP_PACKET_SIZE);
for (int i = 0; i < pingCount; i++)
{
if (cancel)
{
response.PingResult = PingResponseType.Canceled;
break;
}
// Initialize the buffers. The receive buffer is the size of the
// ICMP header plus the IP header (20 bytes)
receiveBuffer = new Byte[256];
byteCount = 0;
response.PacketsSent++;
try
{
// Start timing
start = Environment.TickCount;
//send the Packet over the socket
byteCount = socket.SendTo(sendBuffer, IcmpPacket.ICMP_PACKET_SIZE, SocketFlags.None, server);
if (byteCount == SOCKET_ERROR)
{
result = PingResponseType.ConnectionError;
response.ResponseTimes[i] = Constants.InvalidInt;
}
else
{
//ReceiveFrom will block while waiting for data
byteCount = socket.ReceiveFrom(receiveBuffer, 256, SocketFlags.None, ref client);
// stop timing
stop = System.Environment.TickCount;
if (byteCount == SOCKET_ERROR)
{
result = PingResponseType.ConnectionError;
response.ResponseTimes[i] = Constants.InvalidInt;
}
else if ((stop - start) > pingTimeout)
{
result = PingResponseType.RequestTimedOut;
response.ResponseTimes[i] = Constants.InvalidInt;
}
else if (byteCount > 0)
{
//Record time
response.ResponseTimes[i] = stop - start;
response.PacketsReceived++;
}
}
OnPingResponse(((IPEndPoint)server).Address, result, response.ResponseTimes[i], byteCount, ref cancel);
}
catch (Exception ex)
{
OnPingError(PingResponseType.InternalError, ex.Message);
}
}
}
finally
{
//close the socket
socket.Close();
OnPingCompleted(response);
}
response.PingResult = result;
return(response);
}
