基于串空间模型的Andrew RPC协议的分析与验证

本文首先介绍了当前安全协议形式化验证的前沿方向串空间理论,并运用串空间模型对改进后的Andrew secure RPC协议进行了形式化分析与验证,然后指出了安全缺陷。     

基于SOAP协议的XSOAP系统设计与实现

针对当前分布式网络应用支撑系统的平台限制、防火墙约束和难于掌握等局限,提出了一种跨平台的基于SOAP协议的分布式计算支撑平台XSOAP系统。介绍了系统的实现原理、组成部件和功能结构,描述了采用XML消息结构基于HTTP传输的实现,分析了系统的实现框架和数据流程,并对利用JAVA语言解决XML消息数据和实际数据编码之间的转换以及RPC调用实现做了详细的阐述,实现了对分布式计算的强大支持。     

基于SOAP的网络应用系统的研究及优化

随着计算机网络的迅猛发展,现代企业和政府部门要求网络信息系统能够是松散耦合的、有良好的跨平台性,并且设计简单.SOAP正是基于此类需要而产生的协议.但是SOAP的特点使得基于其上的应用在效率的表现上较为低下.通过分析SOAP的请求响应机制,对这一过程中的某些方面优化的可能进行了一些探讨.     

A middleware‐transparent approach to developing distributed applications

An innovative middleware‐transparent approach to developing distributed applications is presented. The approach uses an aspect‐oriented software development technique to separate an application's middleware‐independent functionality from its middleware‐specific functionality. Application elements that are specific to the middleware are localized in aspects that can be seamlessly integrated into middleware‐independent application designs. The middleware‐transparent approach is used to decouple business functionality from middleware‐specific functionality. The decoupling allows developers to change middleware application elements without significantly modifying business functionality. Middleware technologies such as Java Remote Method Invocation (RMI), Jini, Simple Object Access Protocol (SOAP) remote procedure call (RPC) and .Net are used as examples to illustrate the approach. Copyright © 2005 John Wiley & Sons, Ltd.     

现代操作系统中的多进程技术实及其应用

进程作为资源的拥有者和操作系统中被调度的基本单元,是现代操作系统的重要概念;掌握多进程编程并应用于实际,可以加深对操作系统的认识,是每个优秀程序员必备的素质。本文通过基于RPC的Client/Server进程应用程序的编写,讲述了实现进程并发的分布式计算。     

Integrating Computing Resources on Multiple Grid-Enabled Job Scheduling Systems Through a Grid RPC System

We present a framework for a parallel programming model by remote procedure calls, which bridge large-scale computing resource pools managed by multiple Grid-enabled job scheduling systems. With this system, the user can exploit not only remote servers and clusters, but also the computing resources provided by Grid-enabled job scheduling systems located on different sites. This framework requires a Grid remote procedure call (RPC) system to decouple the computation in a remote node from the Grid RPC mechanism and uses document-based communication rather than connection-based communication. We implemented the proposed framework as an extension of the OmniRPC system, which is a Grid RPC system for parallel programming. We designed a general interface to easily adapt the OmniRPC system to various Grid-enabled job scheduling systems, including XtremWeb, CyberGRIP, Condor and Grid Engine. We show the preliminary performance of these implementations using a phylogenetic application. We found that the proposed system can achieve approximately the same performance as OmniRPC and can handle interruptions in worker programs on remote nodes. Yoshihiro Nakajima is a Research Fellow of the Japan Society for the Promotion of Science     

基于RPC的分布式计算的实现

讨论Unix系统下基于RPC的分布式计算的实现问题，包括XDR数据交换,Server与Client程序设计、多线程与多进程RPC调用。     

SOAP中的远程过程调用

为了实现异构系统的互操作,进而构造Internet环境的高适应性的统一计算环境,介绍了利用SOAP进行远程过程调用的方法,并比较与其它近似目的的方法的优劣。     

基于RPC机制的容错计费系统的设计与实现

网络计费管理是商业化计算机网络的重要网络管理功能.随着Internet商业化进程的推进和企业Intranet的广泛发展与应用,人们对网络计费管理的需求越来越迫切.对计费系统的一个基本要求就是高效、可靠.文章提出了一个基于RPC通信机制的容错计费系统FTCharge(fault-tolerant charge).在简述了计费的基本依据和原理以后,着重论述了FTCharge的总体结构和多容错机制的实现.     

中间件技术研究

介绍了中间件技术,讨论了中间件的分类,比较了不同中间件技术之间的特色和不足。重点介绍了基于PRC和面向对象技术的中间件机制的工作原理。