public bool NetInit()
{
UDPsocket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
//----------------------
// The sockaddr_in structure specifies the address family,
// IP address, and port for the socket that is being bound.
int optval_buflen = 0x200000;
Strinfo.Add(@"[UDP] -- Start Udp communication...");
UDPsocket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 5000);
UDPsocket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveBuffer, optval_buflen);
UDPsocket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.SendBuffer, optval_buflen);
iFrame = 0;
return(true);
}
public bool NetInit()
{
TCPsocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
//----------------------
// The sockaddr_in structure specifies the address family,
// IP address, and port for the socket that is being bound.
try
{
TCPsocket.Connect(new IPEndPoint(IPAddress.Parse(server_IP), server_Port)); //配置服务器IP与端口
}
catch (SocketException)
{
Strinfo.Add(@"[TCP]--Error at Connect()");
return(false);
}
Strinfo.Add(@"[TCP] -- Start TCP communication...");
int optval_buflen = 0x200000;
TCPsocket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveBuffer, optval_buflen);
TCPsocket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 5000);
iFrame = 0;
return(true);
}
public void NetEcho()
{
byte[] rcvbuf = new byte[65524];
byte[] sndbuf = new byte[65524];
ushort sndlength;
ushort rcvlength = 0;
sndbuf[0] = 0x7;
sndbuf[1] = 0;
RCVSTATUS m_rcvStatus = RCVSTATUS.RCV_OK;
for (int cnt = 2; cnt < 65524; cnt++)
{
sndbuf[cnt] = 0x7;
}
EndPoint sendpoint = new IPEndPoint(IPAddress.Parse(server_IP), server_Port);
EndPoint recvpoint = new IPEndPoint(IPAddress.Any, 0);
int curRcvLen;
int tmpSndLen;
int tmpRcvLen;
long nStart = 0;
long nEnd = 0;
int tDelt;
int bWide;
DateTime tNow;
tNow = DateTime.Now;
udp_sw.WriteLine(tNow + "[UDP]--Communication Start");
while ((RCVSTATUS.RCV_CONNERROR != m_rcvStatus) && udp_cond)
{
if (ModeRising == mode)
{
sndlength = (ushort)(iFrame % 0xfe00 + 9);
}
else
{
sndlength = constLen;
}
iFrame++;
m_rcvStatus = RCVSTATUS.RCV_OK;
QueryPerformanceCounter(ref nStart);
try
{
tmpSndLen = UDPsocket.SendTo(sndbuf, sndlength, 0, sendpoint);
curRcvLen = 0;
while (curRcvLen < tmpSndLen)
{
try
{
tmpRcvLen = UDPsocket.ReceiveFrom(rcvbuf, curRcvLen, tmpSndLen - curRcvLen, 0, ref recvpoint);
if (tmpRcvLen > 0)
{
curRcvLen += tmpRcvLen;
}
else if (tmpRcvLen == 0 || -1 == tmpRcvLen)
{
tNow = DateTime.Now;
udp_sw.WriteLine(tNow + "[UDP]--recv tmpRcvLen error");
m_rcvStatus = RCVSTATUS.RCV_CONNERROR;
break;
}
}
catch (SocketException ex)
{
if (ex.SocketErrorCode == SocketError.TimedOut)
{
tNow = DateTime.Now;
udp_sw.WriteLine(tNow + $"[UDP]--select {iFrame:X} timeout");
udp_sw.WriteLine("curRcvLen = {0:X}, tmpSndLen = {1:X} sndAllLength= {2:X}, sndBuf= {3:X}", curRcvLen, tmpSndLen, sndlength, sndbuf[2]);
m_rcvStatus = RCVSTATUS.RCV_TIMEOUT;
break;
}
tNow = DateTime.Now;
udp_sw.WriteLine(tNow + $"[UDP]--select {iFrame:X}" + ex.SocketErrorCode);
m_rcvStatus = RCVSTATUS.RCV_CONNERROR;
break;
}
}
QueryPerformanceCounter(ref nEnd);
bool res = true;
for (var i = 0; i < tmpSndLen; i++)
{
if (sndbuf[i] == rcvbuf[i])
{
continue;
}
res = false;
break;
}
if (m_rcvStatus == RCVSTATUS.RCV_OK && (curRcvLen != tmpSndLen || res))
{
tNow = DateTime.Now;
udp_sw.WriteLine(tNow + "[UDP]-- {0:x} data error", iFrame);
m_rcvStatus = RCVSTATUS.RCV_DATAERROR;
}
}
catch (SocketException ex)
{
tNow = DateTime.Now;
udp_sw.WriteLine(tNow + $"[UDP]--send {iFrame:x} error " + ex.SocketErrorCode);
m_rcvStatus = RCVSTATUS.RCV_CONNERROR;
}
switch (m_rcvStatus)
{
case RCVSTATUS.RCV_OK:
tDelt = (int)(nEnd - nStart);
bWide = (int)(sndlength * 2 * 8 * 1000 / (double)tDelt); //kbps
Strinfo.Add($@"[UDP] -- length: {sndlength:X6}, data_error={eData:d}, time_out={eTimeout:d}, {tDelt:d3}us /{bWide:d}kbps");
break;
case RCVSTATUS.RCV_DATAERROR:
eData++;
Strinfo.Add($"[UDP] -- length:{sndlength:X6}, data_error={eData:d}, time_out={eTimeout:d}");
break;
case RCVSTATUS.RCV_TIMEOUT:
eTimeout++;
Strinfo.Add($"[UDP] -- length:{sndlength:X6}, data_error={eData:d}, time_out={eTimeout:d}");
break;
case RCVSTATUS.RCV_CONNERROR:
Strinfo.Add("[UDP] -- connection error.");
goto ret;
}
}
ret:
tNow = DateTime.Now;
udp_sw.WriteLine(tNow + "[UDP]--Communication Stop");
udp_sw.WriteLine("data_error = {0:d}, time_out = {1:d}", eData, eTimeout);
}
