摘要
异步IO(Asynchronous Input/Output,简称AIO)是在进行普通内部处理时并发执行输入和输出操作的能力。AIO可以将逻辑独立的I/O操作从特定任务的动作中分离出来单独进行^([1])。文章从用户角度出发,介绍了异步I/O的基本概念,并以Vx Works操作系统为例,详细描述AIO的操作函数及控制块结构,并给出了不同情况下异步I/O使用的测试用例。
Asynchronous Input/Output ( AIO) is the ability to perform input and output operations concurrently with ordinary internal processing . AIO enables you to de-couple I/O operations from the activities of a particular task when these are logically independent. From user^ s perspective , this paper introduces the basic concept of AIO, aod take the VxWorks operating system as an example, des-cribes the AIO routines and control block in detail . In the last chapter , this paper presents the AIO test cases in different conditions .
出处
《信息通信》
2017年第1期141-142,共2页
Information & Communications
基金
航空科学基金项目资助(基金编号):工信部民用飞机专项科研项目(MJ-S-2012-05)