Dalvik虚拟机进程模型分析  

Analysis about Process in Dalvik Virtual Machine

作　　者：周毅敏[1] 陈榕[1] 

机构地区：[1]同济大学基础软件工程中心,上海200092

出　　处：《计算机技术与发展》2010年第2期83-86,共4页Computer Technology and Development

基　　金：国家"863"计划资助项目(2001AA113400);国家移动通信产品研究开发专项项目(财政部(财建[2005]182号);信息产业部(信部请函[2005]297号))

摘　　要：Android手机操作系统是Google于2008年推出的智能手机操作系统,它的所有应用都是基于Java语言的,它的类Java虚拟机Dalvik提供了所有应用的运行时环境。Dalvik是一个面向Linux作为嵌入式操作系统设计的虚拟机,尤其是它的面向进程的设计,充分利用了Linux进程管理的特点。介绍了Dalvik所依赖的基础,即Linux操作系统内核中进程管理的一些特性和传统Java程序对进程的控制;进而论述了Dalvik的进程模型的特点,从API和本地代码两个层面具体阐述了进程运行、创建和之间通信的部分细节。文中旨在为Dalvik的研究和应用提供参考。Android mobile operating system is an OS released at 2008 by Google. All the applications are written by Java language. Its semi- Java virtual machine Dalvik provides the whole environment. However, Dalvik is based on the Linux operating system kernel especially its design of the process management which take advantage of the features of Linux process. This article firstly introduces the proeess in the kernel of Linux operating system and the process in the traditional Java program and then illustrates the features of Dalvik process and also depicts some details of processes＇ running and creation and communications between them through the two layers API and native codes. The aim of this article is to provide a reference for Dalvik＇s research and application.

关 键 词：Dalvik 虚拟机 结合子 FORK 写时复制 

分 类 号：TP311.52[自动化与计算机技术—计算机软件与理论]