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Problem Report 0081 Details

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Report 0081 Actions

    Problem Report Number 0081
    Submitter's Classification Test Suite problem
    State Resolved
    Resolution Test Suite Deficiency (TSD)
    Problem Resolution ID TSD.X.0081
    Raised 1993-01-04 08:00
    Updated 2003-03-13 08:00
    Published 1993-08-19 08:00
    Product Standard Internationalised System Calls and Libraries (XPG4)
    Certification Program The Open Brand certification program
    Test Suite VSX4 version 4.2.4
    Test Identification dm.isam/rec/isread 22
    Problem Summary TSD4.081 The test calls isread(ISNEXT+ISLOCK+ISSKIPLOCK) in manual lock mode, and expects no error. The X/Open ISAM Developers Specification, in the description of the isread call (page 87) states "If the ISLO...
    Problem Text

    The test calls isread(ISNEXT+ISLOCK+ISSKIPLOCK) in manual lock mode, and
    expects no error. The X/Open ISAM Developers Specification, in the
    description of the isread call (page 87) states "If the ISLOCK flag is
    used with modes ISNEXT or ISPREV, an ISSKIPLOCK option is provided
    giving the capability to read past/before a locked record by two
    successive isread() calls. Using this option, both isrecnum and the
    current record position will point to the locked record. The iserrno
    variable will be set to [ELOCKED] and record will not point to any
    valid data."

    This clearly means that even though the ISSKIPLOCK option is being
    used, the ELOCKED error will still occur.
    Test Output
    VRPT Fails to report results when given a run of the isread test.
    Following is the relevant portion of the journal file:

    400|0 22 1 15:22:50|IC Start
    200|0 22 15:22:50|TP Start
    520|0 22 33018 1 1|Failed: isread of NEXT/PREVious record
    520|0 22 33018 1 2|Mode is ISPREV+ISSKIPLOCK, record number is 3
    520|0 22 33018 1 3|RETURN VALUES: expected: 0, observed: -1
    520|0 22 33018 1 4|ERRNO VALUES: expected: 0 (NO ERROR), observed: 1007
    (ELOCKED
    )
    520|0 22 33018 1 5|ISSTAT1 VALUES: expected: 0, observed: 9
    520|0 22 33018 1 6|ISSTAT2 VALUES: expected: 0, observed: o
    520|0 22 33018 1 7|ISSTAT3 VALUES: expected: 0, observed: 9
    520|0 22 33018 1 8|ISSTAT4 VALUES: expected: 0, observed: o
    220|0 22 1 15:26:43|FAIL
    410|0 22 1 15:26:43|IC End

    Review Information

    Review Type TSMA Review
    Start Date null
    Completed null
    Status Complete
    Review Recommendation No Resolution Given
    Review Response
    The statements on pages 67 and 87 of the ISAM specification seem to be
    at variance as to the setting of the [ELOCKED] error indicator. The text
    on page 67 fails to mention that this indicator is set, while the text on
    page 87 explicitly states that it will be set. This needs to be clarified
    in order to ensure that all implementations behave in a compatible manner.

    There is no reason to suggest that this waiver request should not be granted.
    However, it could be granted as a test suite deficiency in the case that the
    statements on page 87 are determined to have priority and are required of all
    implementations, or it could be granted as an interpretation in the case that
    it is decided that there is ambiguity and implementations are allowed to leave
    the [ELOCKED] indicator unset in these circumstances.

    Review Type SA Review
    Start Date null
    Completed null
    Status Complete
    Review Resolution Test Suite Deficiency (TSD)
    Review Conclusion
    A test suite deficiency is granted.

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