David Cantrell > Devel-CheckOS-1.71 > Devel::CheckOS::Families

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NAME ^

Devel::CheckOS::Families - what OS "families" are supported "out of the box" by Devel::CheckOS and Devel::AssertOS?

WHAT IS AN OS FAMILY ^

Computing platforms fall into several categories. For example, there is the category of Unix-a-likes. Each of these categories is a "family". A platform can fall into several families.

THE Unix FAMILY ^

Broadly speaking, these are platforms where:

Devices are represented as pseudo-files in the filesystem
Symlinks and hardlinks are supported in at least some filesystems
"Unix-style" permissions are supported

That is, there are seperate read/write/execute permissions for file owner, group and anyone. This implies the presence of multiple user accounts and user groups. Permissions may not be supported on all filesystems.

The filesystem has a single root
The C API for the operating system is largely POSIX-compatible

THE MicrosoftWindows FAMILY ^

This includes any version of Windows and also includes things like Cygwin which run on top of it.

THE DEC, Sun, and Apple FAMILIES ^

These include any OS written by, respectively, DEC, Sun, and Apple. They exist because, while, eg, Mac OS Classic and Mac OS X are very different platforms, they do support some unique features - such as AppleScript.

THE Realtime FAMILY ^

This is for all real-time OSes. So far, it only includes QNX.

THE EBCDIC FAMILY ^

OSes which use EBCDIC instead of ASCII.

AUTHOR, COPYRIGHT and LICENCE ^

Copyright 2008 - 2010 David Cantrell <david@cantrell.org.uk>

This documentation is free-as-in-speech. It may be used, distributed and modified under the terms of the Creative Commons Attribution-Share Alike 2.0 UK: England & Wales License, whose text you may read at http://creativecommons.org/licenses/by-sa/2.0/uk/.

CONSPIRACY ^

This documentation is also free-as-in-mason.

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