本文档是一个服务定义，它提供了应用程序进程使用分布式进程间通信（IPC）设施（DIF）看到的应用程序编程接口（API）的抽象描述。API反映了操作系统或编程语言的特定约束和约定。本文档没有这样做。服务定义独立于这些细节指定应用程序进程和IPC之间的交互。 应用过程可以是IPC过程和(N+1)-DIF的成员。实际的API将是特定于系统的（或者可能根本不存在），但将保持这种交互顺序。这里的符号用于强调参与者只能根据他们所看到的采取行动，不得对任何可能发生在其他地方的事件做出假设。因此，根据本地调用以引起动作提交的原语和本地调用以传递关于状态的信息的原语来描述原语。 这不是API的设计。它不能作为任何一致性测试的基础。实际的API可以使这里提到的一些、全部或没有参数对用户可见，并且可以添加具有局部意义的附加原语。该服务定义的目的是指定必须或可以通过任何方式（显式或隐式）获得的信息，以驱动DIF的操作。

This document is a service definition that provides an abstract description of the application programming interface (API) seen by an Application Process using a distributed inter-process communication (IPC) facility (DIF). APIs reflect the specific constraints and conventions of an operating system or programming language. This document does not do that. A service definition specifies the interactions between an Application Process and IPC independent of such specifics.
The application process may be an IPC process and the member of a (N+1)-DIF. Actual APIs will be system specific (or may not exist at all), but this sequence of interaction will be maintained. The notation here is used to emphasize that the participants can only act on what they see and must not make assumptions about any events that may have occurred elsewhere. Hence the primitives are described in terms of primitives invoked locally to cause an action, submit, and primitives locally invoked to deliver information on state.
This is not a design for an API. It cannot be as a basis for any conformance tests. An actual API may make some, all or none of the parameters noted here visible to the user and may add additional primitives of local significance. The purpose of this service definition is to specify information that must or may be available by whatever means, explicit or implicit, to drive the operation of the DIF.