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System Interfaces (XSH) - Table of Contents

Overview Paper
XBD Contents
XSH Contents
XCU Contents
XRAT Contents
XCURSES Contents
The Austin Group
ISO/IEC 9945
IEEE Std 1003.1
The Authorized Guide Book
Interface Tables (pdf)
Migration Guide (pdf)

System Interfaces (XSH)

The XSH document is part of the Base Specifications, Issue 6. XSH describes a set of system interfaces offered to application programs by systems conformant to this part of the Single UNIX Specification. Readers are expected to be experienced C language programmers, and to be familiar with the XBD document.

This document is structured as follows:

  • Chapter 1 explains the status of this document and its relationship to other formal standards. The scope, conformance, and definitions sections are pointers to the XBD document; the sections are here to meet ISO/IEC rules regarding required sections. The terminology and portability codes are identical to the section in XBD and repeated here for ease of reference.

  • Chapter 2 contains important concepts, terms, and caveats relating to the rest of this document. This includes information on the compilation environment, the name space, definitions of error numbers, signal concepts, standard I/O streams, STREAMS, XSI IPC, realtime, threads, sockets, tracing, and data types.

  • Chapter 3 defines the functional interfaces to systems conformant to this part of the Single UNIX Specification. These are in the form of reference pages and are organized alphabetically.


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