private static MIB_IFTABLE GetAllIfTable()
{
//缓冲区大小
uint dwSize = 0;
//获取缓冲区大小
uint ret = GetIfTable(null, ref dwSize, false);
if (ret == 50)
{
//此函数仅支持于 win98/nt 系统
return(null);
}
//定义，获取 MIB_IFTABLE 对象
MIB_IFTABLE tbl = new MIB_IFTABLE((int)dwSize);
ret = GetIfTable(tbl.ByteArray, ref dwSize, false);
//如果不成功
if (ret != 0)
{
return(null);
}
return(tbl);
}
/// <summary>
/// New - Undocumented!
/// </summary>
/// <param name="IgnoreLoopBack"></param>
/// <remarks></remarks>
public clsNetworkStats([System.Runtime.InteropServices.OptionalAttribute, System.Runtime.InteropServices.DefaultParameterValueAttribute(true)] // ERROR: Optional parameters aren't supported in C#
bool IgnoreLoopBack)
{
long ret = 0;
MIB_IFROW ifrow = new MIB_IFROW();
MIB_IFTABLE IfTable = new MIB_IFTABLE();
int tablesize = 0;
IntPtr iBuf = IntPtr.Zero;
//get tablesize
ret = GetIfTable(iBuf, ref tablesize, true);
//resize buffer on tablesize
iBuf = Marshal.AllocHGlobal(tablesize);
//load buffer
ret = GetIfTable(iBuf, ref tablesize, true);
//marshar from buffer into MIB_IFTABLE structure
IfTable = (MIB_IFTABLE)Marshal.PtrToStructure(iBuf, typeof(MIB_IFTABLE));
//initialize adapter list
m_Adapters = new ArrayList();
int noInterfaces = Convert.ToInt32(IfTable.dwNumEntries);
//NIC Interfaces number
int IFROWSize = Marshal.SizeOf(ifrow);
MIB_IFROW[] mrows = new MIB_IFROW[(int)noInterfaces + 1];
byte[] mDest = null;
mDest = new byte[IFROWSize * noInterfaces + 1];
for (byte i = 1; i <= Convert.ToByte(noInterfaces); i++)
{
mrows[i - 1] = (MIB_IFROW)Marshal.PtrToStructure(new IntPtr(iBuf.ToInt32() + 4 + (i - 1) * IFROWSize), typeof(MIB_IFROW));
IFROW_HELPER ifhelp = PrivToPub(mrows[i - 1]);
if (IgnoreLoopBack == true)
{
if (ifhelp.Description.IndexOf("Loopback") < 0)
{
m_Adapters.Add(ifhelp);
}
}
else
{
m_Adapters.Add(ifhelp);
}
}
Marshal.FreeHGlobal(iBuf);
}
private static List <NetInfo> GetALLNetInfo()
{
List <NetInfo> ninfos = new List <NetInfo>();
MIB_IFTABLE tbl = GetAllIfTable();
if (tbl != null)
{
tbl.Deserialize();
for (int i = 0; i < tbl.Table.Length; i++)
{
var netinfo = GetNetInfo(tbl.Table[i]);
var obj = ninfos.FindLast(x => x.OutOctets.Equals(netinfo.OutOctets) &&
x.InOctets.Equals(netinfo.InOctets));
if (obj == null && netinfo.OutOctets > 0 && netinfo.InOctets > 0)
{
ninfos.Add(netinfo);
}
}
}
return(ninfos);
}
