func IsProcessRunning(pid uint) (bool, error) {
hProcess, err := wrappers.OpenProcess(wrappers.SYNCHRONIZE, false, uint32(pid))
if err == wrappers.ERROR_INVALID_PARAMETER {
// the process no longer exists
return false, nil
} else if err != nil {
return false, NewWindowsError("OpenProcess", err)
}
defer wrappers.CloseHandle(hProcess)
// wait with a timeout of 0 to check the process's status and make sure it's not a zombie
event, err := wrappers.WaitForSingleObject(hProcess, 0)
if err != nil {
return false, NewWindowsError("WaitForSingleObject", err)
}
return event != wrappers.WAIT_OBJECT_0, nil
}
func SignalProcessAndWait(pid uint, timeout time.Duration) error {
milliseconds := uint32(timeout / time.Millisecond)
if timeout < 0 {
milliseconds = wrappers.INFINITE
}
hProcess, err := wrappers.OpenProcess(wrappers.SYNCHRONIZE, false, uint32(pid))
if err == wrappers.ERROR_INVALID_PARAMETER {
// the process terminated on its own
return nil
} else if err != nil {
return NewWindowsError("OpenProcess", err)
}
defer wrappers.CloseHandle(hProcess)
if err := wrappers.GenerateConsoleCtrlEvent(wrappers.CTRL_BREAK_EVENT, uint32(pid)); err == wrappers.ERROR_INVALID_PARAMETER {
// the process terminated on its own
return nil
} else if err != nil {
return NewWindowsError("GenerateConsoleCtrlEvent", err)
}
if _, err := wrappers.WaitForSingleObject(hProcess, milliseconds); err != nil {
return NewWindowsError("WaitForSingleObject", err)
}
return nil
}