/// If
/// then the SBTarget::Attach(...) call will be a
/// synchronous call with no way to cancel the attach in
/// progress.
/// If
/// then the SBTarget::Attach(...) function will
/// return immediately and clients are expected to wait for a
/// process eStateStopped event if a suitable process is
/// eventually found. If the client wants to cancel the event,
/// SBProcess::Stop() can be called and an eStateExited process
/// event will be delivered.
///