Method isSingleInstance

internal/bootstrap/bootstrap.go:437–444

isSingleInstance checks if there is a single instance of the Fibratus process running in the system. This is accomplished by creating a global event object. If such an object already exists, we can conclude Fibratus process is already running.

()

// an object already exists, we can conclude Fibratus process
// is already running.
func (f *App) isSingleInstance() bool {
	name, err := windows.UTF16PtrFromString("Global\\Fibratus")
	if err != nil {
		return false
	}
	event, err := windows.CreateEvent(nil, 0, 0, name)
	return event != 0 && !errors.Is(err, windows.ERROR_ALREADY_EXISTS)
}