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Problem Report 1310 Details

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Report 1310 Actions

    Problem Report Number 1310
    Submitter's Classification Test Suite problem
    State Resolved
    Resolution Test Suite Deficiency (TSD)
    Problem Resolution ID TSD.X.0592
    Raised 1970-01-01 08:00
    Updated 2003-03-13 08:00
    Published 1998-05-18 08:00
    Product Standard Internationalised System Calls and Libraries Extended V2 (UNIX 98)
    Certification Program The Open Brand certification program
    Test Suite VSU version 5.0.2
    Test Identification CAPIbase/ioctl 22
    Problem Summary TSD4U.00226 A delay is needed on slower systems to accomodate message transit time.
    Problem Text
    This test failure is exposed on slower systems. The assertion is
    failing at the point where the test code is calling putpmsg() in a
    loop to fill up the underlying streams. However, with streams
    flow control in place, it takes time for the data to flow through,
    and hence the exposure of the problem on slower systems. To ensure
    that the data does fill up the underlying streams completely, a
    sleep() needs to be added to test after each call to putmsg().
    We have verified that a sleep(4) added to the following code results
    in this test passing on slower systems.

    tset/CAPIbase/fioctl/fioctl22.c:

    printf("PREP: Fill band 1 write queue of STREAM\n");
    for(;;) {
    memset(ctlbuf, 'C', sizeof(ctlbuf));
    ctl.buf = ctlbuf;
    ctl.len = sizeof(ctlbuf);
    memset(databuf, 'D', sizeof(databuf));
    data.buf = databuf;
    data.len = sizeof(databuf);
    band = 1;
    flags = MSG_BAND;
    if((result =
    putpmsg(fildes[1], &ctl, &data, band, flags)) == -1) {
    break;
    }
    sleep(4);
    }
    Test Output
    TEST CASE: ioctl

    TEST PURPOSE #22
    A successful call to int ioctl(int fildes,
    I_FLUSHBAND, (struct bandinfo *)arg) when fildes
    refers to a STREAMS device and the bi_flags member of
    the structure pointed to by arg is FLUSHRW shall flush
    messages in the band specified by the bi_pri member of
    the structure from the STREAM's read and write queues
    and return a value other than -1.
    PREP: Open master pseudo tty
    PREP: Determine if pseudo tty is a stream
    PREP: Open slave side of pseudo tty
    PREP: Set O_NONBLOCK on both ends of the STREAM
    PREP: Put a message on band 1 of the STREAM
    TEST: Flush of band 0 returns other than -1
    TEST: Flush of band 0 has no effect on band 1
    PREP: Put a message on band 1 of the STREAM
    TEST: Flush of band 1 returns other than -1
    TEST: Flush of band 1 flushed queue
    PREP: Fill band 1 write queue of STREAM
    TEST: Flush of band 0 returns other than -1
    TEST: Flush of band 0 has no effect on band 1
    ERROR: Data on band 1 was flushed
    22 FAIL

    Review Information

    Review Type TSMA Review
    Start Date null
    Completed null
    Status Complete
    Review Recommendation No Resolution Given
    Review Response
    A Test Suite Defiency is recommended.

    We agree that message transit time may need to be accomodated.

    Review Type SA Review
    Start Date null
    Completed null
    Status Complete
    Review Resolution Test Suite Deficiency (TSD)
    Review Conclusion
    This is an agreed Test Suite Deficiency.

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