IEEE 1003.5b-1996

This standard defines a standard Ada language binding to POSIX.1 (2), as amended by POSIX.1b f3g, POSIX.1c f4g, and POSIX.1i, which are hereinafter called the base standards. (See x1.2.) The base standards define C-language interfaces to operating system services.1 This standard defines interfaces by which the same operating system services may be accessed from the Ada programming language. The purpose of this standard is to support application portability at the Ada source code level. This standard is intended to be used by both application developers and system implementors. This standard is intended to be compatible with implementations of both the original Ada language standard (ISO/IEC 8652: 1987), and the 1995 revision to that standard (ISO/IEC 8652: 1995). To provide capabilities so that a realtime application program, written in the Ada programming language can employ POSIX realtime extensions, and can operate identically on all conforming POSIX/Ada/Realtime environments. Amendment Standard - Inactive-Withdrawn. This standard is part of the POSIX series of standards for applications and user interfaces to open systems. It defines the Ada language bindings as package specifications and accompanying textual descriptions of the application program interface (API). This standard supports application portability at the source code level through the binding between ISO 8652: 1987 (Ada) and ISO/IEC 9945-1: 1990 (IEEE Std 1003.1-1990) (POSIX), as amended by IEEE Std 1003.1b-1993, IEEE Std 1003.1c-1995, and IEEE Std 1003.1I-1995. Terminology and general requirements, process primitives, the process environment, files and directories, input and output primitives, device- and class-specific functions, language-specific services for Ada, system databases, synchronization, memory management, execution scheduling, clocks and timers, and message passing are covered. It also specifies behavior to support the binding that must be provided by the Ada compilation system.