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Title: A portable, hardware and language independent architecture for communication (PCA)
Language: English
Authors: Jakob, Jörg-Ingo 
Editor: Philips GmbH Forschungslaboratorien, Forschungsabteilung Technische Systeme Hamburg 
Issue Date: 1991
Source: ESPRIT 2434: Knowledge-based realtime CIM controllers for distributed factory supervision : [project duration: 1.1.1989 - 31.12.1991], 30 months report: [January - June 1991] , Suppl. B, Task 2: Applications: the distributed CIM controller, Hamburg 1991, S. 188-212
Abstract (english): A portable, hardware and language independent architecture for continuous exchange of messages in a heterogenous computer network is described. The most difficult part is to overcome resource contention of message sender and receiver: under some operating systems, the receiver wants to read the message before the sender has finished wiriting it. Synchronization of these asynchronous tasks can be achieved by meeting two basic preconditions: (1) both computers are able to read, write and share files on a virtual disk or directory, (2) a non-interruptible rename operation is available for both computers to operate on the virtual disk or directory. It is shown how a primitive portable message passing mechanism (called PCA, the Portable Communication Architecture) can be fully implemented in high level languages, virtually without recoursing to any low level operating connected by a network, it is then possible to implement message passing, mailboxes and remote computation mechanisms easily as variations of the PCA. Applications and transmission speed measurements are reported.
DOI: 10.15480/882.375
Institute: Automatisierungstechnik E-1
Type: (wissenschaftlicher) Artikel
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