/// <summary>
/// Gets the process times 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>
/// <param name="creation">The out variable to report process start time</param>
/// <param name="exit">The out variable to report process exit time</param>
/// <param name="kernel">The out variable to report kernel time of the process</param>
/// <param name="user">The out variable to report user time of the process</param>
/// <returns></returns>
public static bool GetProcessTimes(IntPtr handle, int pid, out long creation, out long exit, out long kernel, out long user)
{
switch (s_currentOS)
{
case OperatingSystem.MacOS:
{
creation = 0;
exit = 0;
kernel = 0;
user = 0;
MacOS.Process.ProcessTimesInfo processTimes = new MacOS.Process.ProcessTimesInfo();
if (MacOS.Process.GetProcessTimes(pid, &processTimes) == MACOS_INTEROP_SUCCESS)
{
var now = DateTime.UtcNow;
// The reported units will be negative seconds
creation = now.AddSeconds(processTimes.StartTime).ToLocalTime().Ticks;
exit = processTimes.ExitTime != 0 ? now.AddSeconds(processTimes.ExitTime).ToLocalTime().Ticks : now.Ticks;
kernel = (long)processTimes.SystemTime;
user = (long)processTimes.UserTime;
return(true);
}
return(false);
}
default:
return(Process.ExternGetProcessTimes(handle, out creation, out exit, out kernel, out user));
}
}
/// <summary>
/// Returns total processor time for a given process. The process must be running or else an exception is thrown.
/// </summary>
public static TimeSpan TotalProcessorTime(System.Diagnostics.Process proc)
{
switch (s_currentOS)
{
case OperatingSystem.MacOS:
{
var buffer = new MacOS.Process.ProcessTimesInfo();
MacOS.Process.GetProcessTimes(proc.Id, ref buffer, includeChildProcesses: false);
long ticks = (long)(buffer.SystemTimeNs + buffer.UserTimeNs) / 100;
return(new TimeSpan(ticks));
}
default:
{
return(proc.TotalProcessorTime);
}
}
}
