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METHOD OR SYSTEM FOR ACCESS TO SHARED RESOURCE

  • US 20150149737A1
  • Filed: 11/22/2013
  • Published: 05/28/2015
  • Est. Priority Date: 11/22/2013
  • Status: Active Grant
First Claim
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1. A method of permitting a particular task access to a sharable resource capable of being accessed by multiple tasks executing concurrently with respect to the sharable resource, the method comprising:

  • determining the state of a flag for the sharable resource;

    executing the following for a default state;

    incrementing a counter tracking the number of concurrent tasks accessing the sharable resource;

    accessing the sharable resource to execute the portion of the particular task involving access to the sharable resource; and

    decrementing the counter tracking the number of concurrent tasks accessing the sharable resource after completion of the portion of the particular task involving access to the sharable resource; and

    executing the following for a non-default state;

    waiting until the state of the flag comprises a default state by re-toggling.

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