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Problem Report 1357 Details

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Report 1357 Actions

    Problem Report Number 1357
    Submitter's Classification Test Suite problem
    State Resolved
    Resolution Test Suite Deficiency (TSD)
    Problem Resolution ID TSD.X.0639
    Raised 1970-01-01 08:00
    Updated 2003-03-13 08:00
    Published 1997-01-22 08:00
    Product Standard Internationalised System Calls and Libraries Extended (UNIX 95)
    Certification Program The Open Brand certification program
    Test Suite VSU version 4.1.1
    Test Identification sockets/connect 5
    Problem Summary TSD4U.00178 This test may fail on implementations because of an insufficient time delay.
    Problem Text
    This test may fail on implementations because of an insufficient time
    delay.

    The situation is the following: A client connects 2 times
    asynchronously to a server which has prepared the connection's backlog
    to "2". Then after activating an alarm timer of DELAY == 2 sec a
    blocking connect is initiated. The alarm is expected to interrupt the
    blocking connect. Then the time delta is compared with DELAY by:

    AF_INET: if(dclock < DELAY || dclock > DELAY + 4)
    failure

    AF_UNIX: if(dclock < DELAY || dclock > DELAY)
    failure

    I think the comparison in the AF_UNIX case should read the same
    as in AF_INET case because there should be no dependency on the
    transport layer.

    ==================================================================


    CLIENT SERVER
    -----------------------------------------------------------

    s s4/NB s3/NONBLOCK listen(2)
    | | | |
    | | | |
    | | | |
    CHILD_READY <------------------------------------------------------
    | | | |
    | | | |
    | | +-> connect |
    | +-> connect |
    | |
    | |
    clock1 = time() |
    | |
    alarm(DELAY == 2) |
    | |
    +-> connect/blocking |
    | |
    clock2 = time() |
    | |
    | |
    check clock2 - clock1 |
    to see if 3rd connect |
    blocked |
    |
    CHILD_CONTINUE >---------------------------------------------------
    . .
    . .
    . .
    Test Output
    TEST CASE: connect

    TEST PURPOSE #5
    If the implementation supports a communications domain
    and a connection-oriented socket type:
    A call to int connect(int socket, const struct
    sockaddr *address, size_t address_len) when blocking
    is interrupted by a signal shall set errno to EINTR,
    return -1, and establish the connection asynchronously.
    PREP: Get VSU_CONNECT_TIMEOUT configuration variable
    TEST: AF_INET SOCK_STREAM
    PREP: Create test sockaddr_in: address = 139.22.228.9, port = 3329
    PREP: Child: create socket
    PREP: Child: bind to socket
    PREP: Child: listen on socket with backlog of 2
    PREP: Child: tell parent ready
    PREP: Child: wait for parent to become ready
    PREP: Child: accept queued connections
    PREP: Child: accept connection being asynchronously established
    PREP: Child: notify parent connections completed
    PREP: Child: wait for parent to complete test
    PREP: Create three sockets
    PREP: Wait for child to be ready
    PREP: Connect twice to fill queue
    TEST: connect blocks until interrupted
    TEST: Duration of blocking
    PREP: Notify child to accept
    TEST: Await notification connections completed
    TEST: AF_UNIX SOCK_STREAM
    PREP: Create test sockaddr_un: path = ../tmp/unix.a0014y
    PREP: Child: create socket
    PREP: Child: bind to socket
    PREP: Child: listen on socket with backlog of 2
    PREP: Child: tell parent ready
    PREP: Child: wait for parent to become ready
    PREP: Create three sockets
    PREP: Wait for child to be ready
    PREP: Connect twice to fill queue
    TEST: connect blocks until interrupted
    TEST: Duration of blocking
    ERROR: Process did not appear to block, expected: 2 secs (approx), actual: 3 secs
    5 FAIL

    Review Information

    Review Type TSMA Review
    Start Date null
    Completed null
    Status Complete
    Review Recommendation No Resolution Given
    Review Response
    We agree this is a test suite deficiency in the test
    suite version(s) listed.

    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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