cMsg - a publish/subscribe package for real-time and online control systems

Author

Wolin, Elliott ; Abbott, D. ; Gurjyan, V. ; Jastrzembski, E. ; Lawrence, D. ; Timmer, C.

Author_Institution

Jefferson Lab Data Acquisition Group

fYear

2005

fDate

10-10 June 2005

Abstract

cMsg is a messaging system designed for use in realtime data acquisition and online controls systems, and includes support for C/C++ and Java clients. It is highly customizable and extensible, and includes a full-featured asynchronous publish/subscribe component as well as a synchronous peer-to-peer component. We first describe the publish/subscribe and peer-to-peer messaging paradigms, discuss their use in real-time and online systems, and describe the power and flexibility of the publish/subscribe paradigm. Next we describe the philosophy of the cMsg implementation and present some details and benchmarks. Finally, since the core of cMsg is written in pure Java, we discuss the suitability of Java for use in real-time and online systems

Keywords

control engineering computing; data acquisition; message passing; middleware; peer-to-peer computing; real-time systems; C client support; C++ client support; Java client support; online control systems; peer-to-peer messaging; publish/subscribe package; real-time systems; realtime data acquisition and online controls systems; synchronous peer-to-peer component; Benchmark testing; Communication system control; Control systems; Data acquisition; Java; Packaging; Peer to peer computing; Production; Protocols; Real time systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Real Time Conference, 2005. 14th IEEE-NPSS

Conference_Location

Stockholm

Print_ISBN

0-7803-9183-7

Type

conf

DOI

10.1109/RTC.2005.1547431

Filename

1547431