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    • 52. 发明授权
    • System for emulating multi-tasking pipelines in a single tasking
environment
    • 用于在单个任务环境中模拟多任务管道的系统
    • US5396616A
    • 1995-03-07
    • US76679
    • 1993-06-15
    • Dennis L. Venable
    • Dennis L. Venable
    • G06F9/38G06F9/455G06F9/46G06T1/20
    • G06F9/544
    • A control system emulates a multi-tasking environment using a single tasking processor. A number of predefined tasks are provided in a task library. When a host application needs processed data from a data source, the host application creates a pipeline of initialized instantiations of one or more of the tasks from the task library. When the host application invokes the pipeline, the data request is made from the host application to a downstream-most section of the pipeline. The data request ripples upstreamwardly to the upstream-most instantiation of one of the tasks from the task library. The upstream-most instantiation of a task obtains data from a data source and returns it downstreamwardly to the host application, each instantiation of a task from the task library further operating on the data.
    • 控制系统使用单个任务处理器模拟多任务环境。 任务库中提供了许多预定义的任务。 当主机应用程序需要从数据源处理的数据时,主机应用程序将从任务库创建一个或多个任务的初始化实例化流水线。 当主机应用程序调用流水线时,数据请求将从主机应用程序发送到流水线的最下游部分。 数据请求在上游波动到来自任务库的任务之一的上游实例化。 任务的最上游实例从数据源获取数据,并将其向下返回到主机应用程序,任务库的任务的每个实例化进一步对数据进行操作。