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LOCK MANAGEMENT SYSTEM, LOCK MANAGEMENT METHOD AND LOCK MANAGEMENT PROGRAM

  • US 20150106542A1
  • Filed: 03/26/2013
  • Published: 04/16/2015
  • Est. Priority Date: 05/23/2012
  • Status: Active Grant
First Claim
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1. A lock management system having a multi-processor, comprising:

  • lock acquisition means for carrying out a lock acquisition process for a thread according to one or more lock modes, at least a portion of the lock modes being a shared lock that can be acquired by one or more threads; and

    management means for managing the number of threads acquiring a lock, by first information which can express the number of threads by one word that can be handled by an indivisible access command of the multi-processor, and second information representing a whole range of the number of threads that can possibly acquire a lock in each lock mode.

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