public long GetFilesSummary(out CounterFileInfo summary)
{
IntPtr pdwNumEntries = new IntPtr(0);
PDH_TIME_INFO structure = new PDH_TIME_INFO();
IntPtr pdwBufferSize = new IntPtr(Marshal.SizeOf(structure));
long num = PdhGetDataSourceTimeRangeH(this.m_hDataSource, ref pdwNumEntries, ref structure, ref pdwBufferSize);
if (num != 0)
{
summary = new CounterFileInfo();
return(num);
}
summary = new CounterFileInfo(new DateTime(DateTime.FromFileTimeUtc(structure.StartTime).Ticks, DateTimeKind.Local), new DateTime(DateTime.FromFileTimeUtc(structure.EndTime).Ticks, DateTimeKind.Local), structure.SampleCount);
return(num);
}
public long SetQueryTimeRange(DateTime startTime, DateTime endTime)
{
PDH_TIME_INFO pInfo = new PDH_TIME_INFO();
if ((startTime != DateTime.MinValue) && (startTime.Kind == DateTimeKind.Local))
{
startTime = new DateTime(startTime.Ticks, DateTimeKind.Utc);
}
pInfo.StartTime = (startTime == DateTime.MinValue) ? 0L : startTime.ToFileTimeUtc();
if ((endTime != DateTime.MaxValue) && (endTime.Kind == DateTimeKind.Local))
{
endTime = new DateTime(endTime.Ticks, DateTimeKind.Utc);
}
pInfo.EndTime = (endTime == DateTime.MaxValue) ? 0x7fffffffffffffffL : endTime.ToFileTimeUtc();
pInfo.SampleCount = 0;
return(PdhSetQueryTimeRange(this.m_hQuery, ref pInfo));
}
public long SetQueryTimeRange(DateTime startTime, DateTime endTime)
{
PDH_TIME_INFO pInfo = new PDH_TIME_INFO();
if ((startTime != DateTime.MinValue) && (startTime.Kind == DateTimeKind.Local))
{
startTime = new DateTime(startTime.Ticks, DateTimeKind.Utc);
}
pInfo.StartTime = (startTime == DateTime.MinValue) ? 0L : startTime.ToFileTimeUtc();
if ((endTime != DateTime.MaxValue) && (endTime.Kind == DateTimeKind.Local))
{
endTime = new DateTime(endTime.Ticks, DateTimeKind.Utc);
}
pInfo.EndTime = (endTime == DateTime.MaxValue) ? 0x7fffffffffffffffL : endTime.ToFileTimeUtc();
pInfo.SampleCount = 0;
return PdhSetQueryTimeRange(this.m_hQuery, ref pInfo);
}
private static extern long PdhSetQueryTimeRange(PdhSafeQueryHandle hQuery, ref PDH_TIME_INFO pInfo);
private static extern long PdhGetDataSourceTimeRangeH(PdhSafeDataSourceHandle hDataSource, ref IntPtr pdwNumEntries, ref PDH_TIME_INFO pInfo, ref IntPtr pdwBufferSize);
public long GetFilesSummary(out CounterFileInfo summary)
{
IntPtr pdwNumEntries = new IntPtr(0);
PDH_TIME_INFO structure = new PDH_TIME_INFO();
IntPtr pdwBufferSize = new IntPtr(Marshal.SizeOf(structure));
long num = PdhGetDataSourceTimeRangeH(this.m_hDataSource, ref pdwNumEntries, ref structure, ref pdwBufferSize);
if (num != 0)
{
summary = new CounterFileInfo();
return num;
}
summary = new CounterFileInfo(new DateTime(DateTime.FromFileTimeUtc(structure.StartTime).Ticks, DateTimeKind.Local), new DateTime(DateTime.FromFileTimeUtc(structure.EndTime).Ticks, DateTimeKind.Local), structure.SampleCount);
return num;
}
public uint SetQueryTimeRange(DateTime startTime, DateTime endTime)
{
Debug.Assert(_hQuery != null);
Debug.Assert(endTime >= startTime);
PDH_TIME_INFO pTimeInfo = new PDH_TIME_INFO();
if (startTime != DateTime.MinValue && startTime.Kind == DateTimeKind.Local)
{
startTime = new DateTime(startTime.Ticks, DateTimeKind.Utc);
}
pTimeInfo.StartTime = (startTime == DateTime.MinValue) ? 0 : startTime.ToFileTimeUtc();
if (endTime != DateTime.MaxValue && endTime.Kind == DateTimeKind.Local)
{
endTime = new DateTime(endTime.Ticks, DateTimeKind.Utc);
}
pTimeInfo.EndTime = (endTime == DateTime.MaxValue) ? Int64.MaxValue : endTime.ToFileTimeUtc();
pTimeInfo.SampleCount = 0;
return PdhSetQueryTimeRange(_hQuery, ref pTimeInfo);
}
public uint GetFilesSummary(out CounterFileInfo summary)
{
IntPtr pNumEntries = new IntPtr(0);
PDH_TIME_INFO pInfo = new PDH_TIME_INFO();
IntPtr bufSize = new IntPtr(System.Runtime.InteropServices.Marshal.SizeOf(pInfo));
uint res = PdhGetDataSourceTimeRangeH(_hDataSource,
ref pNumEntries,
ref pInfo,
ref bufSize);
if (res != 0)
{
summary = new CounterFileInfo();
return res;
}
summary = new CounterFileInfo(new DateTime(DateTime.FromFileTimeUtc(pInfo.StartTime).Ticks, DateTimeKind.Local),
new DateTime(DateTime.FromFileTimeUtc(pInfo.EndTime).Ticks, DateTimeKind.Local),
pInfo.SampleCount);
return res;
}
private static extern long PdhSetQueryTimeRange(PdhSafeQueryHandle hQuery, ref PDH_TIME_INFO pInfo);
private static extern long PdhGetDataSourceTimeRangeH(PdhSafeDataSourceHandle hDataSource, ref IntPtr pdwNumEntries, ref PDH_TIME_INFO pInfo, ref IntPtr pdwBufferSize);
