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Method and apparatus for sharing resource locks amongst applications

  • US 8,566,298 B1
  • Filed: 07/28/2005
  • Issued: 10/22/2013
  • Est. Priority Date: 07/28/2005
  • Status: Expired due to Fees
First Claim
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1. A method for sharing resource locks amongst applications comprising:

  • receiving a lock request, whereinthe lock request is received from a first application, andthe lock request specifies that a resource be locked;

    locking the resource using a key and lock combination for the locked resource;

    supplying the key to the first application;

    creating an exclusive lock mode key and a shared lock mode key;

    detecting whether the locked resource is locked according to a shared lock mode or an exclusive lock mode;

    sharing the shared lock mode key with at least one second application to enable the at least one second application to simultaneously access the resource, or sharing the exclusive lock mode key with the at least one second application to enable the at least one second application to have exclusive access to the resource, wherein the sharing comprises sending the key from the first application to the at least one second application; and

    enabling the at least one second application to simultaneously access the resource with the first application.

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