New Features of MPE/iX: Using the Hierarchical File System: 300 MPE/iX Computer Systems

Chapter 4 What's New for Programmers?

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Table of Contents

Summary of New and Enhanced Features

New features
Enhanced features

Hierarchical Directory Files

The traditional MPE directory structure
MPE/iX hierarchical directory structure features
Hierarchical directory files
Creating a hierarchical directory
The dot (.) and dot-dot (..) directories
Opening a hierarchical directory
Getting hierarchical directory information
Closing or purging a hierarchical directory

New File Types

Symbolic Links
Pipes
FIFOs
MPE/iX Byte-Stream Files

Renaming a File

Enhancements to MPE/iX File System Security Features

Object ownership
Sharing objects

Closing a File

Closing shared files
Closing directory files

Listing File Information

Terminating File Name Strings

Accessing a File by Its File Name

Enhanced intrinsic parameters
Special enhancements to HPFOPEN
Restricted intrinsic parameters

This chapter provides application developers with information about new MPE/iX features available through MPE/iX system intrinsics.


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