private string GetForPidDotNet(int pid)
{
if (dotNetCache.GetValue().TryGetValue(pid, out var instanceId))
{
return(instanceId);
}
ProcessUtility.EnsureProcessIsRunning(pid);
return(null);
}
private string GetForPid(int pid)
{
if (globalCache.GetValue().TryGetValue(pid, out var instanceId))
{
return(instanceId);
}
ProcessUtility.EnsureProcessIsRunning(pid);
globalCache.Evict();
if (!globalCache.GetValue().TryGetValue(pid, out instanceId))
{
throw new InvalidOperationException($"Process with pid {pid} exists, but not found in cache");
}
return(instanceId);
}
/// <summary>
/// Estimates memory consumption
/// </summary>
/// <exception cref="InvalidOperationException">Process has exited</exception>
/// <returns></returns>
public ProcessMemoryInfo GetMemoryInfo()
{
ProcessUtility.EnsureProcessIsRunning(handle, pid);
if (!PsApi.GetProcessMemoryInfo(handle, out var counters))
{
Win32ExceptionUtility.Throw();
}
return(new ProcessMemoryInfo
{
// use PrivateUsage instead of PagefileUsage because PagefileUsage is always zero on Windows 7, Windows Server 2008 R2 and earlier systems
PrivateBytes = (long)counters.PrivateUsage,
WorkingSetBytes = (long)counters.WorkingSetSize,
});
}
public int GetThreadsCount(int pid)
{
if (TryGetThreadsCount(pid, out var count))
{
return(count);
}
ProcessUtility.EnsureProcessIsRunning(pid);
threadsCountCache.Evict();
if (TryGetThreadsCount(pid, out count))
{
return(count);
}
throw new InvalidOperationException($"Unable to retrieve process metrics for process with id {pid}");
}