public static SocketError Set(SafeSocketHandle handle, SocketOptionName optionName, int optionValueSeconds)
{
IOControlKeepAlive ioControlKeepAlive = s_socketKeepAliveTable.GetOrCreateValue(handle);
if (optionName == SocketOptionName.TcpKeepAliveTime)
{
ioControlKeepAlive._timeMs = SecondsToMilliseconds(optionValueSeconds);
}
else
{
ioControlKeepAlive._intervalMs = SecondsToMilliseconds(optionValueSeconds);
}
byte[] buffer = s_keepAliveValuesBuffer ?? (s_keepAliveValuesBuffer = new byte[3 * sizeof(uint)]);
ioControlKeepAlive.Fill(buffer);
int realOptionLength = 0;
return(SocketPal.WindowsIoctl(handle, unchecked ((int)IOControlCode.KeepAliveValues), buffer, null, out realOptionLength));
}
public static unsafe SocketError GetSockOpt(SafeSocketHandle handle, SocketOptionLevel optionLevel, SocketOptionName optionName, byte[] optionValue, ref int optionLength)
{
if (optionLevel == SocketOptionLevel.Tcp &&
(optionName == SocketOptionName.TcpKeepAliveTime || optionName == SocketOptionName.TcpKeepAliveInterval) &&
IOControlKeepAlive.IsNeeded)
{
return(IOControlKeepAlive.Get(handle, optionName, optionValue, ref optionLength));
}
fixed(byte *optionValuePtr = optionValue)
{
SocketError errorCode = Interop.Winsock.getsockopt(
handle,
optionLevel,
optionName,
optionValuePtr,
ref optionLength);
return(errorCode == SocketError.SocketError ? GetLastSocketError() : SocketError.Success);
}
}
public static unsafe SocketError SetSockOpt(SafeSocketHandle handle, SocketOptionLevel optionLevel, SocketOptionName optionName, int optionValue)
{
SocketError errorCode;
if (optionLevel == SocketOptionLevel.Tcp &&
(optionName == SocketOptionName.TcpKeepAliveTime || optionName == SocketOptionName.TcpKeepAliveInterval) &&
IOControlKeepAlive.IsNeeded)
{
errorCode = IOControlKeepAlive.Set(handle, optionName, optionValue);
}
else
{
errorCode = Interop.Winsock.setsockopt(
handle,
optionLevel,
optionName,
ref optionValue,
sizeof(int));
}
return(errorCode == SocketError.SocketError ? GetLastSocketError() : SocketError.Success);
}
public static unsafe SocketError GetSockOpt(SafeSocketHandle handle, SocketOptionLevel optionLevel, SocketOptionName optionName, out int optionValue)
{
if (optionLevel == SocketOptionLevel.Tcp &&
(optionName == SocketOptionName.TcpKeepAliveTime || optionName == SocketOptionName.TcpKeepAliveInterval) &&
IOControlKeepAlive.IsNeeded)
{
optionValue = IOControlKeepAlive.Get(handle, optionName);
return(SocketError.Success);
}
int optionLength = sizeof(int);
int tmpOptionValue = 0;
SocketError errorCode = Interop.Winsock.getsockopt(
handle,
optionLevel,
optionName,
(byte *)&tmpOptionValue,
ref optionLength);
optionValue = tmpOptionValue;
return(errorCode == SocketError.SocketError ? GetLastSocketError() : SocketError.Success);
}
