powershellprocessgoogle-drive-apiterminate

Powershell - CloseMainWindow work for all?

I'm looking for a way to gracefully close/quit the GoogleDrive app which runs under the process GoogleDriveFS.

get-process GoogleDriveFS

Handles  NPM(K)    PM(K)      WS(K)     CPU(s)     Id  SI ProcessName
-------  ------    -----      -----     ------     --  -- -----------
    219      16    10796       5732       0.05   4392   1 GoogleDriveFS
    333      22    11820      32364       0.17   8424   1 GoogleDriveFS
    297      19    16528      34860       0.06  12036   1 GoogleDriveFS
    245      17    10472      23992       0.03  14296   1 GoogleDriveFS
    572      26    52256      82728       0.84  17788   1 GoogleDriveFS
    518      21    28668      68208       0.44  18460   1 GoogleDriveFS
   1024      59    47016      89396      27.95  19452   1 GoogleDriveFS

is something like Process.CloseMainWindow Method suitable for this ? or is there a better way to ensure the app isn't running?

Solution

  • tl;dr

    System.Diagnostics.Process.CloseMainWindow() will not work, for the reasons explained in the bottom section.

    Note:

    You can try the following to achieve graceful termination, but there's no guarantee it will work:

    # Asks all GoogleDriveFS processes to terminate, which they may or may not do.
# A status line is output to stdout for each targeted process, 
# indicating whether the termination request was successfully *sent*.
# Note: ".exe" must be used, whereas it mustn't be 
#       with PowerShell's *-Process cmdlets.
taskkill.exe /im GoogleDriveFS.exe

    If it doesn't, forceful termination is your only option, which is most easily accomplished with:

    # !! Forcefully terminates all GoogleDriveFS, without cleanup.
Stop-Process -Force -Name GoogleDriveFS

    Note: As discussed below, Stop-Process always terminates forcefully. The only function of the -Force switch is to suppress a potential confirmation prompt that is presented when you attempt to terminate processes belonging to a different user (only works with elevation).

    Here's a snippet that first tries graceful termination, then falls back to forceful termination after a specifiable timeout:

    $processName = 'GoogleDriveFS'
$timeOutSecs = 2

# Get all existing processes of interest.
$processes = Get-Process -ErrorAction Ignore -Name $processName

if (-not $processes) {
  Write-Verbose -Verbose "No $processName processes running."
} else {
  # Ask the processes to terminate, which they may or may not do.
  taskkill.exe /im "$processName.exe" *>$null 
  try { 
   # Wait for up to $timeOutSecs seconds for the processes to - 
   # potentially - terminate gracefully.
   $processes | Wait-Process -ErrorAction Stop -Timeout $timeOutSecs
  } catch {
    Write-Warning "Forcefully terminating (remaining) $processName processes..."
    # Note: This assumes that you don't care about any new 
    #       processes that may have launched since Get-Process was called.
    $processes | Stop-Process -Force
  }
}