/// <summary>
/// Returns the memory counters of a specific process
/// </summary>
/// <param name="handle">When calling from Windows the SafeProcessHandle is required</param>
/// <param name="pid">On non-windows systems a process id has to be provided</param>
public static ProcessMemoryCountersSnapshot?GetMemoryCountersSnapshot(IntPtr handle, int pid)
{
switch (s_currentOS)
{
case OperatingSystem.Win:
var counters = Windows.Memory.GetMemoryUsageCounters(handle);
if (counters != null)
{
return(ProcessMemoryCountersSnapshot.CreateFromBytes(
counters.PeakWorkingSetSize,
counters.WorkingSetSize,
(counters.WorkingSetSize + counters.PeakWorkingSetSize) / 2,
counters.PeakPagefileUsage,
counters.PagefileUsage));
}
return(null);
default:
ulong peakMemoryUsage = 0;
if (Unix.Memory.GetPeakWorkingSetSize(pid, ref peakMemoryUsage) == MACOS_INTEROP_SUCCESS)
{
return(ProcessMemoryCountersSnapshot.CreateFromBytes(
peakWorkingSet: peakMemoryUsage,
lastWorkingSet: peakMemoryUsage,
averageWorkingSet: peakMemoryUsage,
peakCommitSize: 0,
lastCommitSize: 0));
}
return(null);
}
}
/// <summary>
/// Returns the memory counters of a specific process only when running on Windows,
/// otherwise counters for a whole processes tree rooted at the given process id.
/// </summary>
/// <param name="handle">When calling from Windows the SafeProcessHandle is required</param>
/// <param name="pid">On non-windows systems a process id has to be provided</param>
public static ProcessMemoryCountersSnapshot?GetMemoryCountersSnapshot(IntPtr handle, int pid)
{
switch (s_currentOS)
{
case OperatingSystem.Win:
{
var counters = Windows.Memory.GetMemoryUsageCounters(handle);
if (counters != null)
{
return(ProcessMemoryCountersSnapshot.CreateFromBytes(
counters.PeakWorkingSetSize,
counters.WorkingSetSize,
(counters.WorkingSetSize + counters.PeakWorkingSetSize) / 2,
counters.PeakPagefileUsage,
counters.PagefileUsage));
}
return(null);
}
default:
{
var usage = new ProcessResourceUsage();
if (Unix.Process.GetProcessMemoryUsage(pid, ref usage, includeChildProcesses: true) == MACOS_INTEROP_SUCCESS)
{
return(ProcessMemoryCountersSnapshot.CreateFromBytes(
usage.PeakWorkingSetSize,
usage.WorkingSetSize,
(usage.WorkingSetSize + usage.PeakWorkingSetSize) / 2,
peakCommitSize: 0,
lastCommitSize: 0));
}
return(null);
}
}
}
