Mach3.0面向对象I/O系统

Mach 3 0's Object Oriented I/O System

为了设计和实现嵌入式实时操作系统ＣＯＳＩＸＶ２．０／ＲＴ平台，我们对Ｍａｃｈ３．０操作系统微内核有关设备管理的源程序进行剖析。在Ｉ／Ｏ管理系统中， Ｍａｃｈ ３．０采用端口和消息机制， 它的Ｉ／Ｏ接口支持的设备驱动程序独立于设备， 独立于位置， 并且是在用户级实现的。它的面向对象设计使得代码的共享程度更高， 减少了依靠硬件设备的代码量，

To design the embeded real time operating system platform of COSIX V2 0/RT, we analyse some source programs for Mach micro kernel's object oriented device management.In the I/O management system,Mach 3 0 uses ports and message mechanisms;its device drivers supported by I/O interfaces are device independent,location independent,and are implemented at the user level.Its object oriented design enables the codes to be highly shared,reduces device dependent codes,and increases system scalability and portability.