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Using Counter-Flip Acknowledge And Memory-Barrier Shoot-Down To Simplify Implementation of Read-Copy Update In Realtime Systems

  • US 20080082532A1
  • Filed: 10/03/2006
  • Published: 04/03/2008
  • Est. Priority Date: 10/03/2006
  • Status: Abandoned Application
First Claim
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1. A method for realtime-safe detection of a grace period for deferring the destruction of a shared data element until pre-existing references to the data element are removed, comprising:

  • providing a grace period identifier for readers of said shared data element to consult;

    initiating a next grace period by manipulating said grace period identifier; and

    requesting acknowledgement of said next grace period from processing entities capable of executing said readers before detecting when a current grace period has ended.

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