public void CounterDefinitionSampleReadsInstanceValueCorrectlyInt64()
{
// ARRANGE
var perfCounter = new NativeMethods.PERF_COUNTER_DEFINITION()
{
CounterNameTitleIndex = 0,
CounterType = 0,
CounterOffset = 6,
CounterSize = 8
};
var data = new byte[]
{
0, 0, 0, 0,
0, 0, 5, 0,
0, 0, 0, 0
};
GCHandle handle = GCHandle.Alloc(data, GCHandleType.Pinned);
IntPtr dataRef = handle.AddrOfPinnedObject();
var sample = new CounterDefinitionSample(perfCounter, -1);
// ACT
sample.SetInstanceValue(0, dataRef);
// ASSERT
Assert.AreEqual(5, sample.GetInstanceValue(0));
handle.Free();
}
public CategorySampleMock(IList <Tuple <string, long> > procValues) : base(null, 0, 0, null)
{
var counterDefinitionSample = new CounterDefinitionSample(new NativeMethods.PERF_COUNTER_DEFINITION(), -1)
{
InstanceValues = procValues.Select(v => v.Item2).ToArray()
};
this.CounterTable = new Dictionary <int, CounterDefinitionSample>()
{
[6] = counterDefinitionSample
};
this.InstanceNameTable = new Dictionary <string, int>();
for (int i = 0; i < procValues.Count; i++)
{
this.InstanceNameTable.Add(procValues[i].Item1, i);
}
}
/// <summary>
/// Gets a collection of <see cref="QuickPulseProcess"/> objects - each corresponding to a system process and containing
/// information about the amount of time the process has occupied CPU cores.
/// </summary>
/// <param name="totalTime">If available, contains the value of the _Total instance of the counter, which indicates the overall
/// amount of time spent by CPU cores executing system processes.</param>
public IEnumerable <QuickPulseProcess> GetProcesses(out TimeSpan?totalTime)
{
// "Process" object
const int CategoryIndex = 230;
// "% Processor Time" counter
const int CounterIndex = 6;
const string TotalInstanceName = "_Total";
const string IdleInstanceName = "Idle";
CategorySample categorySample = this.perfLib.GetCategorySample(CategoryIndex, CounterIndex);
CounterDefinitionSample counterSample = categorySample.CounterTable[CounterIndex];
var procValues = new Dictionary <string, long>();
foreach (var pair in categorySample.InstanceNameTable)
{
string instanceName = pair.Key;
int valueIndex = pair.Value;
long instanceValue = counterSample.GetInstanceValue(valueIndex);
procValues.Add(instanceName, instanceValue);
}
long overallTime;
totalTime = procValues.TryGetValue(TotalInstanceName, out overallTime) ? TimeSpan.FromTicks(overallTime) : (TimeSpan?)null;
return
(procValues.Where(
pv =>
!string.Equals(pv.Key, TotalInstanceName, StringComparison.Ordinal) &&
!string.Equals(pv.Key, IdleInstanceName, StringComparison.Ordinal))
.Select(pv => new QuickPulseProcess(pv.Key, TimeSpan.FromTicks(pv.Value))));
}