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A real-time RMI framework for the RTSJ

A. Borg, A. Wellings
15th Euromicro Conference on Real-Time Systems, 2003. Proceedings.  
The Real-Time Specification for Java (RTSJ) provides a platform for the development of real-time applications.  ...  This paper describes a Real-Time RMI (RT-RMI) framework that supports timely invocation of remote objects.  ...  This paper explores the facilities required by a real-time RMI (RT-RMI) and provides a framework for its implementation. The focus is on RT-RMI for level (1) integration.  ... 
doi:10.1109/emrts.2003.1212749 dblp:conf/ecrts/BorgW03 fatcat:lciknapqgfegzizlpttogtnop4

Using Real-Time Java in Distributed Systems: Problems and Solutions [chapter]

Pablo Basanta-Val, Jonathan Stephen Anderson
2011 Distributed, Embedded and Real-time Java Systems  
To date, the real-time Java community has produced the DRTSJ (The Distributed Real-Time Specification for Java), though a wide variety of other distributed real-time Java efforts exist.  ...  The current RTSJ (Real-time Specification for Java) specification is insufficient to address this challenge; it requires distributed facilities to control the network and maintain end-to-end real-time  ...  We also thank Marisol García-Valls ( for her comments on a previous draft of this chapter.  ... 
doi:10.1007/978-1-4419-8158-5_2 fatcat:u2wvei4rxjeajelusqg75dn4qi

Distributed real-time specification for Java

Jonathan S. Anderson, E. Douglas Jensen
2006 Proceedings of the 4th international workshop on Java technologies for real-time and embedded systems - JTRES '06  
In particular, we present an approach to integrating the distributable threads programming model with the Real-Time Specification for Java and discuss the ramifications for composing distributed, real-time  ...  The Distributed Real-Time Specification for Java (DRTSJ) is under development within Sun's Java Community Process (JCP) as Java Specification Request 50 (JSR-50), lead by the MITRE Corporation.  ...  Particular thanks are due Apogee Software for their generous donation of engineering support for their DRTSJ-compliant Aphelion Real-Time JVM.  ... 
doi:10.1145/1167999.1168002 fatcat:eshfqzxmnbe5vgvbhs32wcvfhy

No-Heap remote objects for distributed real-time Java

Pablo Basanta-Val, Marisol García-Valls, Iria Estévez-Ayres
2010 ACM Transactions on Embedded Computing Systems  
This paper presents an approach to provide real-time support for Java's Remote Method Invocation (RMI) and its integration with the RTSJ memory model in order to leave out garbage collection.  ...  A new construct for remote objects, named No-heap Remote object (NhRo), is introduced.  ...  Although there is an ongoing research effort to obtain the specification for a real-time RMI [Anderson et al. 2006 ] by merging RMI with the RTSJ (The Real-Time Specification for Java) [Bollella et al  ... 
doi:10.1145/1814539.1814546 fatcat:y6megorlxrb7tdsvpuyickhjz4

Diseño de un Software de Intermediación de Comunicación para Sistemas Distribuidos de Tiempo Real Críticos en Java

Daniel Tejera, Alejandro Alonso, Miguel A. de Miguel
2013 Revista Iberoamericana de Automática e Informática Industrial RIAI  
Este trabajo presenta el diseño y la implementación de RMI-HRT (RMI-Hard Real-Time) que está enfocado a sistemas de tiempo real crítico con requisitos de alta integridad. Copyright c 2013 CEA.  ...  Dicho interés se ha reflejado en la especificación RTSJ (Real-Time Specification for Java), que extiende y adapta el lenguaje Java para permitir el desarrollo de sistemas de tiempo real.  ...  This was the motivation for the development of RTSJ (Real-Time Specification for Java), which is a language extension intended to allow the development of real-time systems.  ... 
doi:10.1016/j.riai.2013.03.016 fatcat:gfj5ubpy7fb37bdtrk55r7nofu

RTZen: Highly Predictable, Real-Time Java Middleware for Distributed and Embedded Systems [chapter]

Krishna Raman, Yue Zhang, Mark Panahi, Juan A. Colmenares, Raymond Klefstad, Trevor Harmon
2005 Lecture Notes in Computer Science  
The Real-Time Specification for Java (RTSJ) has been developed to provide extensions to Java so that it can be used for real-time systems, in order to bring Java's advantages, such as portability and ease  ...  In this paper, we describe RTZen, an implementation of a Real-Time CORBA Object Request Broker (ORB), designed to comply with the restrictions imposed by RTSJ.  ...  Acknowledgments The authors thank Susan Anderson Klefstad for significant revision work and suggestions and Morgan Deters for timely jRate bug fixes. Juan A.  ... 
doi:10.1007/11587552_12 fatcat:xrrhizqhazdmzaezynm3xqzkgu

Hardware support in a middleware for distributed and real-time embedded applications

Elias T. Silva, Flávio R. Wagner, Edison P. Freitas, Carlos E. Pereira
2006 Proceedings of the 19th annual symposium on Integrated circuits and systems design - SBCCI '06  
Furthermore, the use of the object-oriented approach reduces time-to-market and development costs. Hardware support in a middleware for distributed and real-time embedded applications  ...  footprint, low energy consumption, and minimal area, obviously addressing the real-time constraints.  ...  ACKNOWLEDGEMENTS Thanks to the Brazilian funding agency CNPq, which is the project sponsor. The authors also thank to the other SEEP-project researchers for the valuable discussions.  ... 
doi:10.1145/1150343.1150384 dblp:conf/sbcci/SilvaWFP06 fatcat:ucjnlkedufhajctdxgxxphkpoe

Design and Implementation of a FTT-CAN Communication Infra-Structure for the RT-femtoJava Processor [chapter]

Rita Kalile Almeida Andrade, Thomás Alimena Del Grande, Tiago Bücker, Carlos Eduardo Pereira
2008 IFIP International Federation for Information Processing  
The paper describes the development of a flexible time-triggered (FTT) communication infrastructure for a customizable Real-time Java processor called RT-FemtoJava.  ...  The developed infrastructure allows the deployment of real-time distributed embedded systems that can balance performance and resource constraints.  ...  a real-time clock and an API designed for such utilization.  ... 
doi:10.1007/978-0-387-09661-2_14 fatcat:5w2xz4ehjrbb7flloemnhsspmq

Real-Time CORBA Middleware [chapter]

Arvind S. Krishna, Douglas C. Schmidt, Raymond Klefstad, Angelo Corsaro
2005 Middleware for Communications  
When combined with a quality real-time OS foundation, well-tuned implementations of Real-time CORBA can meet the QoS needs of DRE systems and, at the same time, offer the development benefits of middleware  ...  Real-time CORBA is a rapidly maturing middleware technology designed for applications with hard real-time requirements, such as avionics mission computing Schmidt et al. (1998b) , as well as those with  ...  To address these problems, the Real-time Java Experts Group has defined the Real-Time Specification for Java (RTSJ) Bollella et al. (2000) .  ... 
doi:10.1002/0470862084.ch17 fatcat:qkyenmj7vvfz7bc5lt4gza6sxq

Asynchronous event handling in the real-time specification for Java

MinSeong Kim, Andy Wellings
2007 Proceedings of the 5th international workshop on Java technologies for real-time and embedded systems - JTRES '07  
The Real-Time Specification for Java (RTSJ) was first released in June 2000 due to the needs arisen for safety-critical and real-time systems.  ...  As a result, most RTSJ implementations simply mapped a released handler to a real-time thread and this results in a 1:1 relationship and therefore undermining the original motivation.  ...  The result is a testimony to his professional and affectionate tutorship. It goes without saying that I am greatly indebted to him for his  ... 
doi:10.1145/1288940.1288942 dblp:conf/jtres/KimW07 fatcat:3meiwr5ztncrpm6zukpwnp7t4q

Software engineering of component-based systems-of-systems

Frédéric Loiret, Romain Rouvoy, Lionel Seinturier, Philippe Merle
2011 Proceedings of the 14th international ACM Sigsoft symposium on Component based software engineering - CBSE '11  
In this paper, we therefore propose a reference framework to leverage on the software engineering of SoS.  ...  Furthermore, only little attention has been paid to the definition of a modular toolset and an extensible runtime infrastructure for deploying and executing SoS.  ...  The Real-Time Specification for Java (RTSJ [3] ) is a specification for the development of predictable real-time Javabased applications with the concepts of: i) real-time threads (RealTimeThread, NoHeapRealTimeThread  ... 
doi:10.1145/2000229.2000238 dblp:conf/cbse/LoiretRSM11 fatcat:jmvun3lyhvhcjolluuy7vasoja

Guest Editorial Special Section on Real-Time and (Networked) Embedded Systems

Thomas Nolte, Roberto Passerone
2009 IEEE Transactions on Industrial Informatics  
The paper presents the proposed mechanism along with its integration in DREQUIEMI, a distributed real-time framework based on the real-time specification for Java (RTSJ) and Java's RMI technologies.  ...  The paper presents a framework, developed in the context of the RI-MACS European project, enabling properties such as real-time and quality-of-service to be guaranteed.  ... 
doi:10.1109/tii.2009.2027059 fatcat:32sialvjfzahhlilr3cbnetxwa

A survey on standards for real-time distribution middleware

Héctor Pérez, J. Javier Gutiérrez
2014 ACM Computing Surveys  
A survey on standards for real-time distribution middleware. 49:3 transformation of data into a representation suitable for transmission over the network, (3) dispatching or assignment of each request  ...  To this end, real-time applications rely on a scheduling scheme to specify a criterion for ordering the use of system resources (e.g., CPUs or communication networks) in such a way that the worst-case  ...  ACKNOWLEDGMENTS The authors want to thank the anonymous reviewers for their many detailed comments that have allowed the article to be enhanced significantly.  ... 
doi:10.1145/2532636 fatcat:gjgkut7szzbkxnuxrkfvqmq2km

CCMPerf: A Benchmarking Tool for CORBA Component Model Implementations

Arvind S. Krishna, Balachandran Natarajan, Aniruddha Gokhale, Douglas C. Schmidt, Nanbor Wang, Gautam Thaker
2005 Real-time systems  
Commercial off-the-shelf (COTS) middleware is now widely used to develop distributed real-time and embedded (DRE) systems.  ...  We demonstrate CCMPerf by using it to collect metrics from a CCM implementation designed for DRE applications.  ...  RTJPerf provides benchmarks for most of the RTSJ features that are critical to real-time and embedded systems. Distribution middleware.  ... 
doi:10.1007/s11241-005-6889-6 fatcat:q7hjg535xzfn7ecc3yrpv3p7gu

A. framework for integrating the real-time specification for Java and Java's remote method invocation

A. Wellings, R. Clark, D. Jensen, D. Wells
Proceedings Fifth IEEE International Symposium on Object-Oriented Real-Time Distributed Computing. ISIRC 2002  
The Distributed Real-Time Specification for Java (DRTSJ) is being developed under Sun's Java Community Process.  ...  This paper reports on an investigation to integrate and extend the existing Real-Time Specification for Java and Java's Remote Method Invocation facility to provide the basis for the DRTSJ.  ...  Acknowledgement The research reported in this paper has been perfor med in the context of the Sun Community Process JSR-50.  ... 
doi:10.1109/isorc.2002.1003655 dblp:conf/isorc/WellingsCJW02 fatcat:edu3nskpazfhbbcn3bdgtxkmk4
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