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Paper Details

  title = "{C}onditional {C}ommunication in the {P}resence of {P}riority",
  author= "Hilderink, Gerald H. and Broenink, Jan F.",
  editor= "Welch, Peter H. and Bakkers, Andr\`{e} W. P.",
  pages = "77--98",
  booktitle= "{C}ommunicating {P}rocess {A}rchitectures 2000",
  isbn= "1 58603 077 9",
  year= "2000",
  month= "sep",
  abstract= "In this paper the behavior of conditional communication in
     the presence of priority will be described. In the theory of
     CSP, conditional communications are expressed by a
     (external) choice construct (also known as the alternative
     construct) by which the choice of one communication out of a
     set of communications is non-deterministic. In practice,
     some communication can be more important than others, so
     that, the choice is deterministic. Therefore, one can
     distinguish two prioritized alternative constructs; a
     symmetric alternative construct (ALT) and an asymmetric
     alternative construct (PRIALT). Current formal semantics and
     implementations of the ALT and PRIALT are based on the
     priorities of communication and not related to the
     surrounding priorities of communicating processes. This can
     result in a structural mismatch that can cause performance
     problems. In this paper a practical solution for realizing
     fair and unfair conditional communication in the presence of
     the PAR and the PRIPAR will be discussed."

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