Athena Developer Guide
Athena Developer Guide
Athena Developer Guide
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<strong>Athena</strong><br />
Chapter 18 Framework packages, interfaces and libraries Version/Issue: 2.0.0<br />
packA<br />
$PACKAROOT<br />
Version<br />
number<br />
v1 v1r1 v2<br />
cmt src packA doc i386- Linuxdbx<br />
linux22<br />
. . .<br />
Win32<br />
Debug<br />
internal include<br />
files and source<br />
code. Avoid many<br />
levels!<br />
external include files<br />
#include “packA/xxx.h”<br />
Avoid many levels!<br />
binaries<br />
Figure 18.1 Layout of Gaudi software packages<br />
18.2.2 Packaging <strong>Guide</strong>lines<br />
Packaging is an important architectural issue for the Gaudi framework, but also for the experiment<br />
specific software packages based on Gaudi. Typically, experiment packages consist of:<br />
• Specific event model<br />
• Specific detector description<br />
• Sets of algorithms (digitisation, reconstruction, etc.)<br />
The packaging should be such as to minimise the dependencies between packages, and must absolutely<br />
avoid cyclic dependencies. The granularity should not be too small or too big. Care should be taken to<br />
identify the external interfaces of packages: if the same interfaces are shared by many packages, they<br />
should be promoted to a more basic package that the others would then depend on. It is a good idea to<br />
discuss your packaging with the librarian and/or architect.<br />
page 159
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