Chapter 1. Introduction
- Table of Contents
- 1.1. What is the Cascade DataHub?
- 1.2. A note about the Cascade DataHub API
- 1.3. System Requirements
- 1.4. Download and Installation
- 1.5. Where can I get help?
1.1. What is the Cascade DataHub?
A real-time data collection and distribution program for modular QNX and Linux applications.
RAM-resident and extremely fast.
Needs no pre-configuration.
The Cascade DataHub is a real-time database used in process control and other modular real-time applications. It is RAM resident, and unlike other types of databases it requires no configuration.
The Cascade DataHub allows you to:
share data among any number of programs
eliminate communication deadlocks among cooperating programs
The Cascade DataHub forms the central data handling mechanism for many real-time and embedded systems developed in QNX and Linux. It allows you to develop applications where many different modules communicate through a common, non-blocking mechanism. The Cascade DataHub offers both a publish/subscribe model for low-latency data updates, as well as a more traditional read/write model for applications that wish to control the rate and timing of data delivery. The Cascade DataHub uses a combination of data packaging and intelligent queueing to ensure that the behaviour and communication bandwidth of one program will not adversely affect any others.