Pub Date : 2000-03-15DOI: 10.1109/ISORC.2000.839556
M. T. Higuera-Toledano, V. Issarny, Teresa Higuera, G. Cabillic, Jean-Philippe Lesot, Frédéric Parain
Java is a programming language with features not found in traditional languages, such as platform independence and dynamic loading. Because of this, the use of Java is extending and it is beginning to be used in many new environments. In particular, the advantages that Java provides make it a good candidate for distributed, real-time and embedded systems. However, Java presents some problems regarding its use in embedded and real-time environments. In this paper, we examine the state of the art in the development of embedded real-time systems using Java. We analyse the limits that the Java language and its execution environment present in developing real-time and embedded systems, and we present current research in this area that is aimed at solving these limits.
{"title":"Java embedded real-time systems: an overview of existing solutions","authors":"M. T. Higuera-Toledano, V. Issarny, Teresa Higuera, G. Cabillic, Jean-Philippe Lesot, Frédéric Parain","doi":"10.1109/ISORC.2000.839556","DOIUrl":"https://doi.org/10.1109/ISORC.2000.839556","url":null,"abstract":"Java is a programming language with features not found in traditional languages, such as platform independence and dynamic loading. Because of this, the use of Java is extending and it is beginning to be used in many new environments. In particular, the advantages that Java provides make it a good candidate for distributed, real-time and embedded systems. However, Java presents some problems regarding its use in embedded and real-time environments. In this paper, we examine the state of the art in the development of embedded real-time systems using Java. We analyse the limits that the Java language and its execution environment present in developing real-time and embedded systems, and we present current research in this area that is aimed at solving these limits.","PeriodicalId":127761,"journal":{"name":"Proceedings Third IEEE International Symposium on Object-Oriented Real-Time Distributed Computing (ISORC 2000) (Cat. No. PR00607)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123486479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2000-03-15DOI: 10.1109/ISORC.2000.839551
A. Savigni, F. Tisato
The design of object-oriented real-time distributed systems is especially hard due to the fact that some issues (concerned with distribution) are dealt with too early in the system life-cycle, while others (concerned with strategy) are hard-coded as programming-in-the-small issues, and still others (concerned with time) are hidden inside the operating system kernel. We present a reference architecture for monitoring and control systems that addresses the first two of these issues. The architecture raises distribution, activation and timing to an explicit, programming-in-the-large level.
{"title":"Real-time programming-in-the-large. The case of monitoring and control systems","authors":"A. Savigni, F. Tisato","doi":"10.1109/ISORC.2000.839551","DOIUrl":"https://doi.org/10.1109/ISORC.2000.839551","url":null,"abstract":"The design of object-oriented real-time distributed systems is especially hard due to the fact that some issues (concerned with distribution) are dealt with too early in the system life-cycle, while others (concerned with strategy) are hard-coded as programming-in-the-small issues, and still others (concerned with time) are hidden inside the operating system kernel. We present a reference architecture for monitoring and control systems that addresses the first two of these issues. The architecture raises distribution, activation and timing to an explicit, programming-in-the-large level.","PeriodicalId":127761,"journal":{"name":"Proceedings Third IEEE International Symposium on Object-Oriented Real-Time Distributed Computing (ISORC 2000) (Cat. No. PR00607)","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115154226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1999-04-11DOI: 10.1109/ISORC.2000.839557
G. H. Hilderink, A. Bakkers, J. Broenink
CSP is a fundamental concept for developing software for distributed real time systems. The CSP paradigm constitutes a natural addition to object orientation and offers higher order multithreading constructs. The CSP channel concept that has been implemented in Java deals with single- and multi-processor environments and also takes care of the real time priority scheduling requirements. For this, the notion of priority and scheduling has been carefully examined and as a result it was reasoned that priority scheduling should be attached to the communicating channels rather than to the processes. In association with channels, a priority based parallel construct is developed for composing processes: hiding threads and priority indexing from the user. This approach simplifies the use of priorities for the object oriented paradigm. Moreover, in the proposed system, the notion of scheduling is no longer connected to the operating system but has become part of the application instead.
{"title":"A distributed real-time Java system based on CSP","authors":"G. H. Hilderink, A. Bakkers, J. Broenink","doi":"10.1109/ISORC.2000.839557","DOIUrl":"https://doi.org/10.1109/ISORC.2000.839557","url":null,"abstract":"CSP is a fundamental concept for developing software for distributed real time systems. The CSP paradigm constitutes a natural addition to object orientation and offers higher order multithreading constructs. The CSP channel concept that has been implemented in Java deals with single- and multi-processor environments and also takes care of the real time priority scheduling requirements. For this, the notion of priority and scheduling has been carefully examined and as a result it was reasoned that priority scheduling should be attached to the communicating channels rather than to the processes. In association with channels, a priority based parallel construct is developed for composing processes: hiding threads and priority indexing from the user. This approach simplifies the use of priorities for the object oriented paradigm. Moreover, in the proposed system, the notion of scheduling is no longer connected to the operating system but has become part of the application instead.","PeriodicalId":127761,"journal":{"name":"Proceedings Third IEEE International Symposium on Object-Oriented Real-Time Distributed Computing (ISORC 2000) (Cat. No. PR00607)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125070730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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