公开(公告)号：US06941556B1

公开(公告)日：2005-09-06

申请号：US09317714

申请日：1999-05-24

申请人： Peter B. Kessler ,  Swee Boon Lim ,  Peter Vanderbilt ,  Michael L. Powell ,  Li-Wen Chen ,  Dwight F. Hare ,  Alan Snyder

发明人： Peter B. Kessler ,  Swee Boon Lim ,  Peter Vanderbilt ,  Michael L. Powell ,  Li-Wen Chen ,  Dwight F. Hare ,  Alan Snyder

IPC分类号： G06F9/46 ,  G06F9/00

CPC分类号： G06F9/548

摘要： A system and method provides dynamic and static type support for multiple definitions of individual types in a distributed object environment. Fully scoped object names incorporating prefixes are used to distinguish objects. The fully scoped names are used for both dynamic type determination through an interface repository and for statically compiled types in client and server stub routines. In the interface repository, a prefix naming context is provided for each root interface definition language context, allowing multiple definitions for objects with the same interface definition language object name, where each such definition resides in a separate prefix naming context. In one embodiment, the prefix naming contexts are defined by prefix interface definition objects. In another embodiment, the fully scoped object names are embedded by an interface definition language compiler in stub and skeleton code routines. RRS.

摘要翻译： 系统和方法为分布式对象环境中的各种类型的多个定义提供动态和静态类型支持。 包含前缀的全范围对象名称用于区分对象。 完全范围的名称用于通过接口存储库进行动态类型确定和用于客户端和服务器存根例程中的静态编译类型。 在接口存储库中，为每个根接口定义语言上下文提供了前缀命名上下文，允许具有相同接口定义语言对象名称的对象的多个定义，其中每个这样的定义驻留在单独的前缀命名上下文中。 在一个实施例中，前缀命名上下文由前缀接口定义对象定义。 在另一个实施例中，完全范围的对象名称由存根和框架代码例程中的接口定义语言编译器嵌入。 RRS。

公开(公告)号：US06353860B1

公开(公告)日：2002-03-05

申请号：US08996784

申请日：1997-12-23

申请人： Dwight F. Hare ,  Robert B. Hagmann ,  Michael L. Powell ,  Alan Snyder ,  Peter Vanderbilt

发明人： Dwight F. Hare ,  Robert B. Hagmann ,  Michael L. Powell ,  Alan Snyder ,  Peter Vanderbilt

IPC分类号： G06F954

CPC分类号： G06F9/465

摘要： A variety of methods, apparatus and data structures for managing collections of objects are described. In one aspect of the invention, an object that is intended for use in a distributed object operating environment has a structure including a group designation, a co-activation designation and a co-process designation. The group designation is arranged to identify a group to which the object belongs. The group is defined as a collection of objects which share a common persistent state. The co-activation designation is arranged to identify a co-activation set to which the object belongs. The co-activation set is a collection of objects which are to be activated at the same time. The co-process designation is arranged to identify a co-process set to which the object belongs. The co-process set is a collection of objects which are to be activated within a single process. A various embodiments, a variety of methods of utilizing one or more of these designations to facilitate efficient operation of a distributed computing system are also described. In some applications, a particular object may be conceptually divided into a plurality of sub-objects, with each sub-object having its own portion of persistent memory. In this embodiment, the particular object may only be invoked as a whole, but the object is provided with a mechanism for accessing the selected sub-object in response to a call from a client object that invokes the object and identifies the sub-object in a sub-object field of an object reference that refers to the object. When sub-objects are use, the object references may be arranged to include a host identifier, an object identifier and a sub-object field.

摘要翻译： 描述了用于管理对象集合的各种方法，装置和数据结构。 在本发明的一个方面，旨在用于分布式对象操作环境中的对象具有包括组指定，协同激活指定和协处理指定的结构。 组名称被安排为标识对象所属的组。 该组被定义为共享公共持久状态的对象的集合。 协同激活名称被设置为识别对象所属的共同激活集合。 共同激活集合是要同时激活的对象的集合。 协处理指定被设置为识别对象所属的协同处理集合。 协同处理集合是在单个进程中被激活的对象的集合。 还描述了各种实施例，利用这些指定中的一个或多个来促进分布式计算系统的有效操作的各种方法。 在一些应用中，特定对象可以在概念上被划分为多个子对象，每个子对象具有其自己的持久存储器部分。 在该实施例中，特定对象可以仅作为整体被调用，但是该对象被提供有用于响应于来自调用该对象的客户端对象的调用来访问所选择的子对象的机制，并且识别该子对象 引用对象的对象引用的子对象字段。 当使用子对象时，对象引用可以被布置为包括主机标识符，对象标识符和子对象字段。

公开(公告)号：US5793965A

公开(公告)日：1998-08-11

申请号：US408633

申请日：1995-03-22

申请人： Peter Vanderbilt ,  David M. Brownell ,  Alain Demour ,  Dwight F. Hare ,  Michael L. Powell

发明人： Peter Vanderbilt ,  David M. Brownell ,  Alain Demour ,  Dwight F. Hare ,  Michael L. Powell

IPC分类号： G06F13/00 ,  G06F9/44 ,  G06F9/46

CPC分类号： G06F9/465

摘要： A method of checking the type of an object located on a remote computer in a distributed object environment computing system is disclosed. Initially, a type checking method to determine whether a remotely located object is of a specified type is invoked. In the invocation, a target interface identifier is included as an argument. A determination is then made as to whether the target interface identifier is equal to or a base for an apparent interface identifier held by a proxy object located on the first computer. If the target interface identifier is determined to be equal to or a base for the apparent interface identifier, an affirmative indication to that effect is returned to the client process. If not, then the target interface identifier is then compared to a real interface identifier. In many embodiments, a call to the server host will have to be made in order to determine the real interface identifier. In some embodiments, a local cache memory can also be provided to store the results of such inquiries. The target interface identifier is then compared to the real interface identifier and a determination is made as to whether the target interface identifier is equal to or a base for the real interface identifier. The result is then returned to the client process. A method of checking the type of an object and additionally returning an output proxy object is also disclosed. The output proxy object may be the original input proxy object that has been widened to the class associated with the target interface identifier, or may be a newly created proxy object that is of the same kind as the input proxy and of the same type as the target interface identifier.

摘要翻译： 公开了一种在分布式对象环境计算系统中检查位于远程计算机上的对象的类型的方法。 最初，调用用于确定远程位置的对象是否是指定类型的类型检查方法。 在调用中，包含目标接口标识符作为参数。 然后确定目标接口标识符是否等于或由位于第一计算机上的代理对象持有的明显接口标识符的基础。 如果目标接口标识符被确定为等于或明显接口标识符的基础，那么肯定的指示将返回到客户端进程。 如果没有，则将目标接口标识符与真实接口标识符进行比较。 在许多实施例中，必须进行对服务器主机的呼叫以便确定真正的接口标识符。 在一些实施例中，还可以提供本地高速缓冲存储器来存储这种查询的结果。 然后将目标接口标识符与实际接口标识符进行比较，并且确定目标接口标识符是否等于或者是真实接口标识符的基准。 然后将结果返回给客户端进程。 还公开了一种检查对象的类型并另外返回输出代理对象的方法。 输出代理对象可以是被扩展到与目标接口标识符相关联的类的原始输入代理对象，或者可以是新创建的与输入代理相同类型的代理对象，并且与 目标接口标识符。

公开(公告)号：US06769125B2

公开(公告)日：2004-07-27

申请号：US09968404

申请日：2001-09-28

申请人： Anthony W. Menges ,  Kenneth M. Cavanaugh, III ,  David M. Brownell ,  Robert B. Hagmann ,  Dwight F. Hare ,  Peter Vanderbilt

发明人： Anthony W. Menges ,  Kenneth M. Cavanaugh, III ,  David M. Brownell ,  Robert B. Hagmann ,  Dwight F. Hare ,  Peter Vanderbilt

IPC分类号： G06F954

CPC分类号： G06F9/465

摘要： A number of methods, apparatus, and data structures are disclosed for managing computer processes. In one aspect, a daemon process which manages server processes includes an active server table and a locator service. The locator service can look up and register server processes in the active server table. Furthermore, the locator service can start up server processes. In some embodiments, the locator service includes a look-up object and a server process registration object which perform the tasks of the locator service. In other embodiments, methods for managing server process such as starting and registering the server processes are taught. In one specific method, a daemon process performs a variety of steps in response to receiving a look-up call for a target object. These steps include obtaining a server identifier for the target object, determining the state of a server process, and returning addressing information corresponding to the server process under which the target object will activate. In related method aspects the daemon process will start the server process if it isn't running and/or wait until the server process is running to return the addressing information. In a separate method aspect, a server process self-starts; receiving an object reference for a desired target object, receiving a server process identification number, creating a communications port for itself, forming addressing information for itself, obtaining an object reference for a server process registration object, and registering itself by calling the server process registration object to invoke a register new process operation.

摘要翻译： 公开了用于管理计算机进程的多种方法，装置和数据结构。 一方面，管理服务器进程的守护进程包括活动服务器表和定位器服务。 定位器服务可以在活动服务器表中查找并注册服务器进程。 此外，定位服务可以启动服务器进程。 在一些实施例中，定位器服务包括执行定位器服务的任务的查找对象和服务器进程注册对象。 在其他实施例中，教导了用于管理服务器进程的方法，例如启动和注册服务器进程。 在一个特定方法中，守护进程响应于接收到目标对象的查找调用执行各种步骤。 这些步骤包括获取目标对象的服务器标识符，确定服务器进程的状态，以及返回对应于目标对象将被激活的服务器进程的寻址信息。 在相关方法方面，如果服务器进程未运行，并且/或等待服务器进程运行以返回寻址信息，则守护程序进程将启动服务器进程。 在单独的方法方面，服务器进程自启动; 接收所需目标对象的对象引用，接收服务器进程标识号，为其自身创建通信端口，为其自身形成寻址信息，获取服务器进程注册对象的对象引用，并通过调用服务器进程注册来注册自身 对象调用寄存器新进程操作。

公开(公告)号：US06349342B1

公开(公告)日：2002-02-19

申请号：US08835994

申请日：1997-04-11

申请人： Anthony W. Menges ,  Kenneth M. Cavanaugh, III ,  David M. Brownell ,  Robert B. Hagmann ,  Dwight F. Hare ,  Peter Vanderbilt

发明人： Anthony W. Menges ,  Kenneth M. Cavanaugh, III ,  David M. Brownell ,  Robert B. Hagmann ,  Dwight F. Hare ,  Peter Vanderbilt

IPC分类号： G06F944

CPC分类号： G06F9/465

摘要： A number of methods, apparatus, and data structures are disclosed for managing computer processes. In one aspect, a daemon process which manages server processes includes an active server table and a locator service. The locator service can look up and register server processes in the active server table. Furthermore, the locator service can start up server processes. In some embodiments, the locator service includes a look-up object and a server process registration object which perform the tasks of the locator service. In other embodiments, methods for managing server process such as starting and registering the server processes are taught. In one specific method, a daemon process performs a variety of steps in response to receiving a look-up call for a target object. These steps include obtaining a server identifier for the target object, determining the state of a server process, and returning addressing information corresponding to the server process under which the target object will activate. In related method aspects the daemon process will start the server process if it isn't running and/or wait until the server process is running to return the addressing information. In a separate method aspect, a server process self-starts; receiving an object reference for a desired target object, receiving a server process identification number, creating a communications port for itself, forming addressing information for itself, obtaining an object reference for a server process registration object, and registering itself by calling the server process registration object to invoke a register new process operation.

摘要翻译： 公开了用于管理计算机进程的多种方法，装置和数据结构。 一方面，管理服务器进程的守护进程包括活动服务器表和定位器服务。 定位器服务可以在活动服务器表中查找并注册服务器进程。 此外，定位服务可以启动服务器进程。 在一些实施例中，定位器服务包括执行定位器服务的任务的查找对象和服务器进程注册对象。 在其他实施例中，教导了用于管理服务器进程的方法，例如启动和注册服务器进程。 在一个特定方法中，守护进程响应于接收到目标对象的查找调用执行各种步骤。 这些步骤包括获取目标对象的服务器标识符，确定服务器进程的状态，以及返回对应于目标对象将被激活的服务器进程的寻址信息。 在相关方法方面，如果服务器进程未运行，并且/或等待服务器进程运行以返回寻址信息，则守护程序进程将启动服务器进程。 在单独的方法方面，服务器进程自启动; 接收所需目标对象的对象引用，接收服务器进程标识号，为其自身创建通信端口，为其自身形成寻址信息，获取服务器进程注册对象的对象引用，并通过调用服务器进程注册来注册自身 对象调用寄存器新进程操作。

公开(公告)号：US06336147B1

公开(公告)日：2002-01-01

申请号：US08967874

申请日：1997-11-12

申请人： David M. Brownell ,  Pavani Diwanji ,  Neguine Navab ,  Peter Vanderbilt

发明人： David M. Brownell ,  Pavani Diwanji ,  Neguine Navab ,  Peter Vanderbilt

IPC分类号： G06F900

CPC分类号： G06F9/465 ,  G06F9/54 ,  H04L29/06 ,  H04L67/1002 ,  H04L67/42

摘要： 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.

摘要翻译： 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。