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6 Configuring T-ORB for openUTM
This chapter describes how to configure communication between GINA applications. The configuration does not require any modifications to the source program. However, it cannot take place while the application is running; rather it must be performed before the applica- tion starts.
The configuration of
6.1 Overview
To operate a distributed system on the basis of GINA, certain information must be known on the desired system structure, the current parameter settings of the host, and the char- acteristics of the GINA applications.
The configuration tool described here records this information in the form of a general sys- tem description, from which it generates the data required by GINA.
The information you must enter can be divided into the following parts (see Figure 1 on page 44):
–specifications on
–specifications on
–specifications on
–specifications on the connections between applications
Practically speaking, some of the parameters can be specified in more than one of these areas. In such cases, the values set higher up in the hierarchy must be taken as default set- tings. These values are then overwritten by the settings in more specific areas. The desired settings can thus be specified separately for each application if required (customizing).
A connection between two applications is defined by the number of parallel communication channels and the definition of the controlling application of each communication channel. Even if all communication channels are controlled by one application, messages can be
GINA V4.0 System Administrator Guide – September 2000 | 43 |
