Windows NT进程检查点系统NTckpt的设计与实现  

Design and Implementation of Process Checkpoint System NTckpt Based on Windows NT

作　　者：梁蓓[1] 杨金民[1] 张大方[1] 

机构地区：[1]湖南大学计算机与通信学院,湖南长沙410082

出　　处：《计算机应用》2003年第6期23-25,共3页journal of Computer Applications

基　　金：国家自然科学基金项目(60973070,09973016)

摘　　要：设置进程检查点是保存和恢复进程运行状态的重要技术,是实现容错、卷回调试和进程迁移的重要手段。介绍了WindowsNT操作系统的进程状态,以及基于该操作系统的进程检查点系统NTckpt的实现原理。NTckpt实现了完全一致恢复用户地址空间,保证了地址空间中动态分配数据区域的正确恢复。Checkpoint is an important technology to save and rollback the state of processes, and it is widely used in the fields, such as software fault tolerance, rollback debugging and process migration. This paper introduces the mechanism of process on Windows NT, and emphasizes on the implementation of NTckpt, a checkpointing and restore tool. The NTckpt tool introduces a method of restoring data region allocated dynamically, which can correctly restore private data region of the processes.

关 键 词：客错 进程状态 进程检查点 

分 类 号：TP316.86[自动化与计算机技术—计算机软件与理论]