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Expressing and Enforcing Timing Constraints in a Dynamic Real-Time CORBA System
[chapter]
1999
Operating Systems and Services
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This paper describes a Dynamic Real-Time CORBA system, which supports the expression and enforcement of end-to-end timing constraints as an extension to a commercial CORBA system. ...
The paper also describes performance tests that demonstrate the system's ability t o enforce expressed timing constraints. ...
We also thank the members of the OMG Real-Time Special Interest Group for their dedicated and sound work in deriving the Real-Time CORBA speci cation. ...
doi:10.1007/978-1-4615-5041-9_5
fatcat:wsn3vo7qqzhe7orseapoxbjrai
Real-time CORBA
2000
IEEE Transactions on Parallel and Distributed Systems
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This paper presents a survey of results in developing Real-Time CORBA, a standard for real-time management of distributed objects. ...
distributed real-time computing that have been produced in the research community. ...
Many people have contributed indirectly to this paper due to their ground-breaking work in developing Real-Time CORBA; we mention some of them here. ...
doi:10.1109/71.888646
fatcat:zfom5vtvl5d65ccr5ubsoi533u
RapidSched: static scheduling and analysis for real-time CORBA
1999
Engineering Solutions for the Next Millennium 1999 IEEE Canadian Conference on Electrical and Computer Engineering (Cat No 99TH8411) CCECE-99
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RapidSched uses a global, distributed deadline monotonic priority assignment, enforcement of priorities by commercial real-time operating systems, and distributed priority ceiling resource management. ...
This paper presents a real-time CORBA Scheduling Service called RapidSched. ...
Previous work at the University of Rhode Island and the SPAWAR Systems Center has developed a dynamic real-time CORBA system [8] that provides expression and best-effort end-to-end enforcement of soft ...
doi:10.1109/words.1999.806558
dblp:conf/words/WolfeDBCJKWW99
fatcat:pie2poz5jvar5bjppszga5nonq
Real-Time CORBA Middleware
[chapter]
2005
Middleware for Communications
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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 ...
In addition to the needs of desktop and enterprise systems, DRE systems impose stringent quality of service (QoS) constraints. ...
The system supports expression and enforcement of dynamic end-to-end timing constraints through timed distributed method invocations (TDMIs) Fay- Wolfe et al. (1995) . ...
doi:10.1002/0470862084.ch17
fatcat:qkyenmj7vvfz7bc5lt4gza6sxq
Resource virtualization in real-time CORBA middleware
2006
Proceedings of the 4th international conference on Hardware/software codesign and system synthesis - CODES+ISSS '06
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Providing such a consistent virtualization in distributed real-time and embedded systems becomes increasingly challenging due to application constraints such as timeliness and resource constraints such ...
This paper describes several examples of real-time CORBA middleware and examines how different constraints impact the way in which resources are virtualized in each case. ...
Real-time CORBA 1.0 specification [40] vs. dynamically scheduled (deadline, laxity, utility, etc. based) systems supported by the Real-time CORBA 1.2 (briefly called 2.0) specification [38] . ...
doi:10.1145/1176254.1176299
dblp:conf/codes/Gill06
fatcat:t2iygl7vwngvheppkc5vintcce
Scheduling and Priority Mapping for Static Real-Time Middleware
[chapter]
2001
Challenges in Design and Implementation of Middlewares for Real-Time Systems
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This paper also presents the implementation of these real-time middleware scheduling techniques in a Scheduling Service that meets the interface proposed for such a service in the Real-Time CORBA 1.0 standard ...
real-time operating systems. ...
Previous work at the University of Rhode Island has developed a dynamic real-time CORBA system (DiPippo, 1999) that provides expression and best-effort end-to-end enforcement of soft real-time client method ...
doi:10.1007/978-1-4615-1695-8_3
fatcat:sga7wjrdbbenpc6guszeuptlsy
Q-SCA: Incorporating QoS support into software communications architecture for SDR waveform processing
2006
Real-time systems
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While SDR is heavily involved in real-time signal processing, the current SCA lacks QoS capabilities in terms of both QoS specification and enforcement. ...
are used throughout the application instantiation process, and (3) introducing a mechanism to enforce the result of the resource allocation. ...
They form a very attractive application domain for Q-SCA since they are extremely complex distributed real-time systems with stringent real-time constraints and a high degree of software reconfigurability ...
doi:10.1007/s11241-006-6739-5
fatcat:gr3cz3cczzdcvfcgntq7ovcptu
Formal design constraints
1996
SIGPLAN notices
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The characteristics of a platform and an application architecture are expressed as a set of general design constraints. ...
Large software systems are often built on system platforms that support or enforce speci c characteristics of the source code or actual design. ...
Dynamic properties are checked or enforced during runtime. Static properties are enforced during compilation time by viewing the system under development as a collection of objects. ...
doi:10.1145/236338.236376
fatcat:orhqvapgpjalfb2sefvfddnljy
Formal design constraints
1996
Proceedings of the 11th ACM SIGPLAN conference on Object-oriented programming, systems, languages, and applications - OOPSLA '96
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The characteristics of a platform and an application architecture are expressed as a set of general design constraints. ...
Large software systems are often built on system platforms that support or enforce speci c characteristics of the source code or actual design. ...
Dynamic properties are checked or enforced during runtime. Static properties are enforced during compilation time by viewing the system under development as a collection of objects. ...
doi:10.1145/236337.236376
dblp:conf/oopsla/KlarlundKS96
fatcat:5u2beok2trd4rmwr3k6ikg6kce
The Design and Performance of a Real-Time CORBA Scheduling Service
[chapter]
2001
Challenges in Design and Implementation of Middlewares for Real-Time Systems
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Second, we describe the flexible scheduling service framework in our real-time CORBA implementation, TAO, which efficiently supports core scheduling strategies like RMS, EDF, MLF, and MUF. ...
However, conventional CORBA middleware does not define standard features to dynamically schedule operations for applications that possess deterministic and/or statistical real-time requirements. ...
Acknowledgments This work was funded in part by Boeing. We gratefully acknowledge the support and direction of the Boeing Principal ...
doi:10.1007/978-1-4615-1695-8_2
fatcat:t34rfj73grfj7oyal5djxahea4
Distributed real-time specification for Java
2006
Proceedings of the 4th international workshop on Java technologies for real-time and embedded systems - JTRES '06
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systems in Java. ...
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 ...
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
Napoleon
1999
Proceedings of the fourth ACM workshop on Role-based access control - RBAC '99
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Napoleon consists of three parts; a model for specifying security policies for a heterogeneous set of network resources: a graphical tool for manipulating the model and software to translate the policy ...
This paper focuses on how the layered policy approach in the Napoleon model has been generalized to allow for adding additional layers. ...
As a result they do not have a great deal of time to devote to learning a new tool, and in particular they do not have time to design a role hierarchy. ...
doi:10.1145/319171.319185
dblp:conf/rbac/ThomsenOP99
fatcat:gnsnnolhyjddtb3npb73vhszvu
Evaluating policies and mechanisms to support distributed real-time applications with CORBA
2001
Concurrency and Computation
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levels in distributed and embedded real-time systems. ...
The Real-time CORBA specification in CORBA 2.4 focuses on operating systems that allow applications to specify scheduling priorities and policies. ...
The system supports expression and enforcement of dynamic end-to-end timing constraints through timed distributed operation invocations (TDMIs) [41] . A TDMI corresponds to TAO's RT Operation [5] . ...
doi:10.1002/cpe.558
fatcat:dwkvmjsdvrds3csl6us4cuz6ru
Evaluating and Optimizing Thread Pool Strategies for Real-Time CORBA
2001
Proceedings of the ACM SIGPLAN workshop on Languages, compilers and tools for embedded systems - LCTES '01
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To facilitate this common requirement, the Real-Time CORBA (RT-CORBA) specification defines standard middleware features that support end-to-end predictability for operations in such applications. ...
Strict control over the scheduling and execution of processor resources is essential for many fixed-priority real-time applications. ...
The system supports expression and enforcement of dynamic end-to-end timing constraints through timed distributed operation invocations (TDMIs) [21] . ...
doi:10.1145/384197.384226
dblp:conf/lctrts/PyaraliSCS01
fatcat:43gxdlkw6fht3phvks7esu2h2i
Integrating Security Policies via Container Portable Interceptors
2006
IEEE Distributed Systems Online
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We designed and developed a security framework, integrated it into the CORBA Component Model 1 middleware platform, and evaluated it in a real-world project. ...
A facet of a CORBA component in a server role can be connected to a receptacle of a CORBA component in a client role. ...
The policy, expressed in a PDL text file, is compiled and loaded into the policy repository. ...
doi:10.1109/mdso.2006.44
fatcat:pcpm4ijve5cqnnpdnrfeqmpc3q
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