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Generate diagnostic data for overdue thread in a data processing system

  • US 7,958,402 B2
  • Filed: 09/22/2008
  • Issued: 06/07/2011
  • Est. Priority Date: 09/22/2008
  • Status: Expired due to Fees
First Claim
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1. A computer implemented method to generate diagnostic data for a thread, the computer implemented method comprising:

  • allocating a first thread to a monitoring function;

    determining if a second thread is running, wherein the second thread is associated with a first operation, wherein the first operation is a hardware-object-model operation;

    obtaining a first object pointer from a first list of running threads, wherein the first object pointer references a time data structure associated with the second thread, the time data structure associated with the second thread comprising a first maximum running time interval and a first check time;

    responsive to obtaining the first object pointer, determining whether the first maximum running time interval is finite;

    responsive to a determination that the first maximum running time interval is finite, calculating the first check time as the first maximum running time interval added to an initially sampled timestamp;

    determining if a first current time exceeds the first check time;

    responsive to a determination that the first current time exceeds the first check time, generating an error log;

    responsive to a determination that the first current time exceeds the first check time, sending a signal to a calling thread to continue;

    determining if a third thread is running, wherein the third thread is associated with a second operation;

    obtaining a second object pointer from a second list of running threads, wherein the second object pointer references a time data structure associated with the third thread, the time data structure associated with the third thread comprising a second maximum running time interval and a second check time;

    calculating the check time as the second maximum running time interval added to the initially sampled timestamp;

    determining if a second current time exceeds the second check time; and

    responsive to a determination that the second current time exceeds the second check time, generating the error log.

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