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PROTECTING SHARED RESOURCES USING SHARED MEMORY AND SOCKETS

  • US 20110239219A1
  • Filed: 03/29/2010
  • Published: 09/29/2011
  • Est. Priority Date: 03/29/2010
  • Status: Active Grant
First Claim
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1. A method of protecting a shared resource in a computing system, comprising:

  • storing, in shared memory accessible to at least a first thread and a second thread which execute concurrently in the computing system, a lock data structure for serializing access to the shared resource, the first thread executing under control of a first operating system hosted by the computing system and the second thread executing under control of a second operating system hosted by the computing system; and

    upon detecting, by the first thread, that a lock provided by the lock data structure is already held, using a socket to block while waiting for the lock to be released.

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