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Framework for quiescence management in support of reconfigurable multi-threaded component-based systems

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2 Author(s)
P. Pissias ; Comput. Dept., Lancaster Univ., Lancaster ; G. Coulson

In component-based software systems, the basic building block is the component, and applications are built as component compositions. `Dynamic reconfiguration` in such systems is defined as the ability to replace individual components at runtime, or to change the compositional topology by adding/removing components and/or changing the patterns of their interconnection. A `quiescence service` supports dynamic reconfiguration by pushing a system into a stable state in which such changes can be safely made. It is thus a key enabler of dynamic reconfiguration. The authors present the design of a quiescence service, which has been implemented for the OpenCOM component-based programming platform. It is argued that this design shows significant advances over the state of the art in quiescence support for component-based systems. In particular, it minimises programmer overhead and system disruption, and efficiently supports a large class of systems without imposing architectural constraints.

Published in:

IET Software  (Volume:2 ,  Issue: 4 )