This manual discusses several topics of interest to programmers writing applications for the IRIX operating system on Silicon Graphics computers. These topics include memory management, interprocess communication, models of parallel computation, file and record locking, font access, and internationalization.
This manual contains the following major parts:
Part I, “The Process Address Space,” tells how the virtual address space of a process is created and how objects are mapped into it.
Part II, “Interprocess Communication,” covers all the facilities for communicating and coordinating among processes such as semaphores, shared memory, signals, message queues, and file and record locks.
Part III, “Advanced File Control,” describes advanced uses of disk files: file locking, asynchronous I/O, direct I/O, and guaranteed-rate I/O.
Part IV, “Models of Parallel Computation,” gives an overview of the different ways you can specify parallel execution in Silicon Graphics systems.
Part V, “Working With Fonts,” discusses typography and font use on Silicon Graphics computers, and describes the Font Manager library.
Part VI, “Internationalizing Your Application,” explains how to create an application that can be adapted for use in different countries.
Appendix A, “ISO 3166 Country Names and Abbreviations,” lists country codes for use with internationalization and localization.
This manual assumes that you are writing an application that executes under IRIX version 6.2 or later, and that you are familiar with the programming conventions of UNIX in general and IRIX in particular.
All examples are in the C language, although the descriptions are valid for C++ or any other language that provides access to IRIX kernel functions, such as Silicon Graphics Ada95 or MIPSpro Fortran 90.
In addition to this manual, which covers specific IRIX features, you will need to refer to Silicon Graphics manuals that describe compilers and programming languages. Some of the most useful are listed in Table i.
Overview of the IRIX library of manuals for developers
Programming on Silicon Graphics Systems: An Overview
Compiling, linking, and tuning programs in C, C++, or Fortran
MIPSpro Compiling and Performance Tuning Guide
Writing modules in assembly language.
MIPSpro Assembly Language Programmer's Guide
C Language Reference Manual
C++ Language System Overview
MIPSpro Fortran 77 Programmer's Guide
MIPSpro Fortran 90 Programmer's Guide
IRIX Admin: System Configuration and Tuning
Writing real-time applications
REACT/Pro Real Time Programmer's Guide
Controlling devices directly
IRIX Device Driver Programmer's Guide
Details of the MIPS processor hardware
MIPS R4000 Microprocessor User's Manual
You can find additional information about internationalization from X/Open Company Limited. X/Open Portability Guide, Volume 1, XSI Commands and Utilities, Volume 2; XSI System Interface; and Volume 3, XSI Supplementary Definitions. Berkshire, United Kingdom. Prentice-Hall, Inc.
Silicon Graphics manuals are usually read online using IRIS InSight. This manual and many of the books in Table i are installed as part of the IRIS Development Foundation feature. When the books are installed or mounted on your workstation, use the command iiv, or double-click the IRIS InSight icon, to launch IRIS Insight. Then select the book you want from the “bookshelf” display.
When the manuals are not accessible to your workstation you can examine or order any Silicon Graphics manual on the World Wide Web using the following URL: http://techpubs.sgi.com.
This manual uses the conventions and symbols shown in Table ii.
Type of Information
Example of Typography
Filenames and pathnames
This structure is declared in /usr/include/sys/time.h.
IRIX command names and options used in normal text
Update these variables with systune; then build a new kernel with autoconfig -vf.
Names of program variables, structures, and data types, used in normal text
Global variable mainSema points to an IRIX semaphore, which has type usema_t.
Names of IRIX system functions, library functions, and functions in example code
Use mmap() to map an object into the address space, and munmap() to remove it.
Names of IRIX reference (man) pages. You can click on any of these to display the page
See the plock(2) reference page.
When complete lines of example code or commands are set off from normal text, they are displayed as follows.
ipcrm -s semid
Parts of the code or command that need to be typed exactly as shown are displayed in a monospaced font. Operands that you supply are italicized.
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