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Problem Report 0445 Details

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This page provides all information on Problem Report 0445.

Report 0445 Actions

    Problem Report Number 0445
    Submitter's Classification Test Suite problem
    State Resolved
    Resolution Rejected (REJ)
    Problem Resolution ID REJ.X.0064
    Raised 1994-11-05 08:00
    Updated 2003-03-13 08:00
    Published null
    Product Standard Internationalised System Calls and Libraries (XPG4)
    Certification Program The Open Brand certification program
    Test Suite VSX4 version 4.3.2
    Test Identification POSIX.os/devclass/c_iflag 19
    Linked Problem Reports PG3.712, (in, old, system)
    Problem Summary PG4R.064 The problem is probably that the test doesn't expect us to buffer as many characters as we do. Printing the value of the "capacity" variable in the test yielded numbers between 2100 and 2500 characte...
    Problem Text
    The problem is probably that the test doesn't expect us to buffer
    as many characters as we do. Printing the value of the "capacity"
    variable in the test yielded numbers between 2100 and 2500 characters.
    This reflects only the read side -- the write side buffers roughly
    the same. Since the test writes the data 47 bytes at a time and
    sleeps two seconds between each write, it takes a long time to fill
    the buffers. We observed typical values of 200 sec.

    The test passes on our machine if we either increase the length of
    "string" from 47 to 500 or if we reduce the value of NAP in the
    write-loops from 2 seconds to 1 second. It would have passed
    without either change if not for the timeout -- in about 7 minutes
    total. We think the best fix would be to reduce (or eliminate)
    the NAP inside the write loops.
    Test Output

    ************************************************************************
    /tset/POSIX.os/devclass/c_iflag/T.c_iflag 19 Unresolved

    Test Description:
    If general terminal interface supported:
    When IXOFF is set the system shall transmit one or more STOP
    characters as needed to prevent the number of characters in the
    input queue from exceeding its capacity. The system shall transmit
    one or more START characters as needed to start transmitting data.
    CONDITIONAL: If _POSIX_MAX_INPUT <= MAX_INPUT <= PCTS_MAX_INPUT
    assertion is base (type C) otherwise assertion is extended (type
    D).
    Posix Ref: Component Settable Parameters Assertion 7.1.2.2-32(C:D)
    Posix Ref: Component Settable Parameters Assertion 7.1.2.2-33(C:D)

    Test Information:
    child process timed out
    ************************************************************************

    Review Information

    Review Type TSMA Review
    Start Date null
    Completed null
    Status Complete
    Review Recommendation No Resolution Given
    Review Response
    This test is the subject of permanent interpretation number PIN4.015
    which relates to the fact that sending of START and STOP characters
    is not well defined. It is suggested that this PIN number be quoted
    on the branding application as it seems that the problem exhibited on
    the system under test, while slightly different, is of the same nature.

    Review Type SA Review
    Start Date null
    Completed null
    Status Complete
    Review Resolution Rejected (REJ)
    Review Conclusion
    This request is refused, please reference PIN4.015.

    Problem Reporting System Options:

     

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