/// <summary>
/// </summary>
/// <param name="queryBuilder">
/// Using <see cref="QueryBy.IPv4"/> or <see cref="QueryBy.IPv6"/> to query tcp status.
/// </param>
/// <param name="filter"></param>
/// <returns></returns>
public static IReadOnlyList <ITrafficRow> Execute(IRowAdapter queryBuilder, Predicate <ITrafficRow> filter)
{
if (queryBuilder == null)
{
throw new ArgumentNullException(nameof(queryBuilder));
}
if (filter == null)
{
return(Execute(queryBuilder));
}
var result = new List <ITrafficRow>();
var buffSize = default(int);
var tcpTablePtr = IntPtr.Zero;
try
{
var ret = GetExtendedTcpTable(
tcpTablePtr,
ref buffSize,
true,
queryBuilder.AddressFamily);
tcpTablePtr = Marshal.AllocHGlobal(buffSize);
ret = GetExtendedTcpTable(
tcpTablePtr,
ref buffSize,
true,
queryBuilder.AddressFamily);
if (ret != 0)
{
return(result);
}
var numEntries = queryBuilder.CalculateEntries(tcpTablePtr);
var rowPtr = tcpTablePtr + 4;
for (int i = 0; i < numEntries; i++)
{
var row = queryBuilder.Adapt(rowPtr);
if (filter.Invoke(row))
{
result.Add(row);
}
rowPtr += queryBuilder.RowSize;
}
}
finally
{
if (tcpTablePtr != IntPtr.Zero)
{
Marshal.FreeHGlobal(tcpTablePtr);
}
}
return(result);
}
/// <summary>
/// </summary>
/// <param name="queryBuilder">
/// Using <see cref="QueryBy.IPv4"/> or <see cref="QueryBy.IPv6"/> to query tcp status.
/// </param>
/// <returns></returns>
public static IReadOnlyList <ITrafficRow> Execute(IRowAdapter queryBuilder)
{
return(Execute(queryBuilder, x => true));
}
