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1. 发明授权

US5572709A Using dynamically-linked libraries to add side effects to operations 失效
标题翻译：使用动态链接的库来添加操作的副作用
公开(公告)号：US5572709A
公开(公告)日：1996-11-05
申请号：US80037
申请日：1993-06-18
申请人： Glenn S. Fowler , Yennun Huang , David G. Korn , Chung-Hwa H. Rao
发明人： Glenn S. Fowler , Yennun Huang , David G. Korn , Chung-Hwa H. Rao
IPC分类号： G06F9/06 , G06F9/46 , G06F11/14 , G06F11/20 , G06F12/00 , G06F17/30 , G06F9/44 , G06F9/455
CPC分类号： G06F11/2071 , G06F17/30067 , G06F9/52
摘要： A backup file system which can be used without modification of application programs, the operating system, or the hardware. The backup file system is implemented by means of a dynamically-linkable replacement library and user-level processes on a primary computer system and a backup computer system. The dynamically-linkable replacement library has the same interfaces as a standard dynamically-linkable library of file operations. The functions in the replacement library perform the same file operations as their counterparts in the standard library; in addition, they send messages specifying the just-performed operation to a user-level process on the backup computer system. The user-level process executes the operation specified in the message on a backup file in the backup computer system. The files to be backed up are specified by identifying subtrees in the namespace of the primary file system; the subtrees make up a user-defined namespace. The backup file system is made fault tolerant by the use of monitor processes which monitor the backup computer system and the processes of the backup file system and deal with failures as required to keep the backup file system operating.
摘要翻译：可以在不修改应用程序，操作系统或硬件的情况下使用的备份文件系统。备份文件系统通过在主计算机系统和备用计算机系统上的动态可链接替换库和用户级进程来实现。动态链接替换库具有与标准动态链接的文件操作库相同的接口。替换库中的功能与标准库中的功能执行相同的文件操作; 此外，它们将指定刚刚执行的操作的消息发送到备份计算机系统上的用户级进程。用户级进程在备份计算机系统中的备份文件上执行消息中指定的操作。要备份的文件通过在主文件系统的命名空间中标识子树来指定; 子树组成一个用户定义的命名空间。通过使用监视备份计算机系统的监视进程和备份文件系统的进程并根据需要处理故障以使备份文件系统运行，备份文件系统是容错的。

2. 发明授权

US5551037A Apparatus and methods for visualizing operation of a system of processes 失效
标题翻译：用于可视化处理系统的操作的装置和方法
公开(公告)号：US5551037A
公开(公告)日：1996-08-27
申请号：US154771
申请日：1993-11-19
申请人： Glenn S. Fowler , David G. Korn , Elefterios Koutsofios , Stephen C. North
发明人： Glenn S. Fowler , David G. Korn , Elefterios Koutsofios , Stephen C. North
IPC分类号： G06F11/28 , G06F9/46 , G06F9/48 , G06F11/32 , G06F11/36 , G06F3/153
CPC分类号： G06F11/3664 , G06F11/3612
摘要： Techniques for analyzing and controlling operation of a system of cooperating processes. A library of system calls used by the processes is replaced by a dynamically-linked library which performs the system calls and also sends messages indicating that the system calls have been performed. The messages are received by a display system which responds to the messages by making a graphical display showing the current state of the system of processes. The graphical display displays the system of processes as a tree. Nodes in the tree represent the processes in the system and resources such as files used by the processes; edges in the tree represent relationships between processes and other processes or resources. Users may control which system calls result in messages, may control the rate at which the display system responds to the messages, and may also control execution of the processes.
摘要翻译：分析和控制合作过程系统运行的技术。流程使用的系统调用库由动态链接的库替代，该库执行系统调用，并发送指示已执行系统调用的消息。消息由显示系统接收，显示系统通过进行图形显示来显示进程系统的当前状态来响应消息。图形显示将进程系统显示为树。树中的节点表示系统中的进程和资源（如进程使用的文件）树中的边表示进程和其他进程或资源之间的关系。用户可以控制哪些系统调用产生消息，可以控制显示系统响应消息的速率，并且还可以控制进程的执行。

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