Method for allowing application program in computer system to access
device directly in exclusive mode by bypassing operating system and
blocking requests from other programs
    3.
    发明授权
    Method for allowing application program in computer system to access device directly in exclusive mode by bypassing operating system and blocking requests from other programs 失效
    允许计算机系统中的应用程序通过绕过操作系统并阻止来自其他程序的请求以独占模式直接访问设备的方法

    公开(公告)号:US5535416A

    公开(公告)日:1996-07-09

    申请号:US459014

    申请日:1995-06-01

    摘要: A data processing system gives an application running on the operating system exclusive ownership of a hardware device. The system is operable in two modes. In the first mode the application interacts with the hardware device by making use of the processing system. In this mode many layers of the processing system are involved and the interaction time with the hardware is slow and inconsistent. In the second mode, exclusive ownership of the hardware device is granted to the application by the driver. In this mode the application has direct access to the hardware device thus avoiding the involvement of the processing system layers. The application accesses and uses the driver through a low latency processor interface linked into the application program itself.

    摘要翻译: 数据处理系统使得在操作系统上运行的应用程序对硬件设备的独占所有权。 该系统可在两种模式下操作。 在第一种模式下,应用程序利用处理系统与硬件设备进行交互。 在这种模式下,涉及处理系统的许多层次,与硬件的交互时间缓慢而不一致。 在第二模式中,由驱动程序向该应用授予硬件设备的独占所有权。 在这种模式下,应用程序可以直接访问硬件设备,从而避免了处理系统层的卷入。 应用程序通过连接到应用程序本身的低延迟处理器接口访问和使用驱动程序。