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Acentric tuple space system facing cooperation

A tuple space and tuple technology, applied in the tuple space field of virtual shared memory, can solve the problem of inefficient data access, reduce overhead, have great practicability, and avoid resource consumption and delay time.

Active Publication Date: 2013-01-30
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The system uses copy management and the application layer multicast protocol of the non-central collaboration node to solve the problem of inefficient data access in distributed collaboration in a dynamic environment, and at the same time improve the performance of node communication

Method used

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  • Acentric tuple space system facing cooperation
  • Acentric tuple space system facing cooperation
  • Acentric tuple space system facing cooperation

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Experimental program
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Embodiment Construction

[0053] Specific embodiments of the collaboration-oriented decentralized tuple space system according to the present invention will be described in more detail below with reference to the accompanying drawings.

[0054] A collaboration-oriented decentralized tuple space system, including a decentralized tuple space (DTS) for implementing tuple space operations and implementing a communication protocol for maintaining a decentralized tuple space between different nodes A middleware module and a network module for generating and maintaining a multicast tree for multicasting and forwarding. The specific structure is as figure 1 shown. In addition, the system also includes a copy management module for completing copy strategy management and switching, and an external DracoTS (Decentralized Replicable Adaptive Tuple Space for To-Work) system interface.

[0055] Among them, such as figure 2 As shown, the DTS middleware module includes:

[0056] Management unit of local tuple spa...

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Abstract

The invention provides an acentric tuple space system facing cooperation, which comprises an acentric tuple space middle component module, a duplicate managing module, a network module and an interface module. The system of the invention provides a uniform access interface for an upper layer and can use the access primitive of the tuple space; and the system comprises two parts for a lower layer, wherein one part is a local tuple space used for saving tuple data which needs to be saved in a local computer, the other part is an external network communication layer which is downward connected with the uniform network interface, completes communication and cooperation with other tuple space systems in a network. The invention uses a duplicate mechanism to solve the problem of ineffective data access in distribution cooperation under a dynamic environment, provides an application layer multicast algorithm of acentric cooperation nodes, and improves the performance of node communication. Thus, the model realizes the complete decoupling of acentric tuple cooperation in time and space, reduces the complexity of mutual cooperation of a plurality of nodes, and fully and effectively utilizes limited resources.

Description

technical field [0001] The invention relates to the technical field of tuple space of virtual shared memory, in particular to a cooperation-oriented centerless tuple space system. Background technique [0002] LIME (Linda In the Mobile Environment) is a centerless tuple space proposed in 2006. It extends the concept of tuple space to Ad Hoc wireless network environment. In LIME, each node has a local tuple space, and "instant sharing" is performed between different tuple spaces. That is, when the content of the tuple space is always the union of the local tuple spaces in the nodes that can be connected in the tuple space. However, LIME does not provide copy management, and its network transmission is only a single-point transmission, and it does not design its own application layer forwarding protocol. [0003] MobiSpaces is a tuple space system for mobile applications. It's still essentially a client-server type of system. The server maintaining the tuples is accessed ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W80/12H04W84/18
Inventor 覃征邢剑宽章晋学王娟陈晨
Owner TSINGHUA UNIV