解决OpenMAX组件资源冲突的一种方法

Design of resource management based on standard environment of OpenMAX

针对OpenMax组件访问协处理器资源时,可能产生的资源冲突问题,提出了一种新的解决方法。该方法通过为OpenMax组件进行资源获取、释放、抢占等操作行为提供接口,在多组件同时访问协处理器资源时,根据组件优先级对资源实施实时仲裁,实现资源被单一组件互斥使用。通过在系统测试点加LOG打印函数对系统进行仿真,证明该方法可解决资源冲突问题。

A new solution is proposed here to address the resource conflict problem which will arise when the OpenMAX components access the resourses of the coprocessor.This method provides the interfaces for the components to access,release and seize resources.When multi-components access the resources of the coprocessor,this method will make a real-time arbitration of the resources according to the priority of the components,ensure that the resources are used by a single component.When LOG print function is used at test points to emulate the system,the result shows that the method can solve the resource conflict.