This routine changes the object name in the condition variable
    object specified by the cond argument to the value specified
    by the name argument. To set a new condition variable object's
    object name, call this routine immediately after initializing the
    condition variable object.

    The object name is a C language string and provides an identifier
    that is meaningful to a person debugging a multithreaded
    application. The maximum number of characters in the object name
    is 31.