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    • 8. 发明授权
    • Method and apparatus for managing connections for communication among objects in a distributed object system
    • 用于管理分布式对象系统中的对象之间的通信的连接的方法和装置
    • US06336147B1
    • 2002-01-01
    • US08967874
    • 1997-11-12
    • David M. BrownellPavani DiwanjiNeguine NavabPeter Vanderbilt
    • David M. BrownellPavani DiwanjiNeguine NavabPeter Vanderbilt
    • G06F900
    • G06F9/465G06F9/54H04L29/06H04L67/1002H04L67/42
    • A method and apparatus for managing connections between objects in a distributed object system includes a method and apparatus for terminating connections between objects. In one aspect, the method for terminating a connection, a connection end message is sent from a server to a client indicating to the client that the server will no longer accept requests before the connection is terminated. Preferably a connection end code is included with the connection end message. In another aspect, the invention includes a method for making connections between objects are formed by intelligently closing existing connections that meet the criteria of being established and across which no unfulfilled requests or unforwarded replies are pending. If several connections meet these criteria, the oldest unused connection is terminated. The methods and apparatus described provide for the creation and termination of connections efficiently and robustly by allowing the controlled shut down of connections between clients and servers without invoking an error state.
    • 用于管理分布式对象系统中的对象之间的连接的方法和装置包括用于终止对象之间的连接的方法和装置。 一方面,用于终止连接的方法,连接结束消息从服务器发送到客户机,指示在连接终止之前服务器将不再接受请求。 优选地,连接结束代码包括在连接结束消息中。 在另一方面,本发明包括一种用于通过智能地关闭满足正在建立的标准并且没有未实现的请求或未经转发的回复正在等待的现有连接来形成对象之间的连接的方法。 如果几个连接满足这些条件,则最旧的未使用连接终止。 所描述的方法和装置通过允许在客户机和服务器之间的连接的受控关闭而不调用错误状态来有效和鲁棒地创建和终止连接。
    • 9. 发明授权
    • Methods, apparatus and data structures for managing objects
    • 用于管理对象的方法,设备和数据结构
    • US6009266A
    • 1999-12-28
    • US408954
    • 1995-03-22
    • David M. BrownellPavani Diwanji
    • David M. BrownellPavani Diwanji
    • G06F15/16G06F9/44G06F9/46G06F12/00G06F9/00G06F15/163
    • G06F9/4435
    • A variety of methods, apparatus, and data structures for managing transient and persistent distributed objects are disclosed. Objects for use as object references are described, both for transient and persistent objects. In one aspect of the invention, a data structure that is intended for use as an object reference for a transient object is disclosed having a set of endpoint addresses, an incarnation number, and an object key. These elements serve to uniquely identify and locate the transient object. In another aspect of the invention, an object that is intended for use as an object reference for a persistent object is disclosed having a host computer name, a locator identification, an object key, and a subobject identifier. The first three elements serve as an indirection to the persistent object and the third element is for use by the persistent object. These data structures enable a distributed object operating environment which integrates both transient and persistent objects. A variety of methods utilizing one or more of the elements of the abovementioned object references to provide a system resource efficient interaction between a client requesting service from a server object. One particular method selects the fastest transport mode between the client and the server object. Another specific method teaches reading addressing information directly from local cache memory. If the addressing information is not available in cache memory, the information is first found and then stored in cache memory thereby perpetuating the efficiency of the invention.
    • 公开了用于管理瞬时和持久分布式对象的各种方法,装置和数据结构。 描述用于对象引用的对象,既用于瞬态对象也包括持久对象。 在本发明的一个方面,公开了一种旨在用作瞬态对象的对象引用的数据结构,其具有一组端点地址,化身号和对象密钥。 这些元素用于唯一标识和定位瞬态对象。 在本发明的另一方面,公开了一种旨在用作持久对象的对象引用的对象,其具有主计算机名称,定位符标识,对象密钥和子对象标识符。 前三个元素作为持久对象的间接,第三个元素由持久化对象使用。 这些数据结构使得能够集成瞬态和持久对象的分布式对象操作环境。 使用上述对象引用中的一个或多个元素的各种方法来提供从服务器对象请求服务的客户端之间的系统资源有效的交互。 一种特定的方法选择客户端和服务器对象之间最快的传输模式。 另一种具体方法教导了直接从本地缓存中读取寻址信息。 如果寻址信息在高速缓冲存储器中不可用,则首先找到该信息,然后将其存储在高速缓冲存储器中,从而使本发明的效率达到永久。