def run_dtrace():
    """
    Go for it...
    """
    # get dtrace handle
    handle = LIBRARY.dtrace_open(3, 0, byref(c_int(0)))

    # options
    if LIBRARY.dtrace_setopt(handle, "bufsize", "4m") != 0:
        txt = LIBRARY.dtrace_errmsg(handle, LIBRARY.dtrace_errno(handle))
        raise Exception(c_char_p(txt).value)
    if LIBRARY.dtrace_setopt(handle, "aggsize", "4m") != 0:
        txt = LIBRARY.dtrace_errmsg(handle, LIBRARY.dtrace_errno(handle))
        raise Exception(c_char_p(txt).value)

    # callbacks
    buf_func = BUFFERED_FUNC(buffered_stdout_writer)
    LIBRARY.dtrace_handle_buffered(handle, buf_func, None)

    # compile
    prg = LIBRARY.dtrace_program_strcompile(handle,
                                            SCRIPT_COUNT, 3, 4, 0, None)

    # run
    LIBRARY.dtrace_program_exec(handle, prg, None)
    LIBRARY.dtrace_go(handle)

    # aggregate data for a few sec...
    i = 0
    chew = CHEW_FUNC(chew_func)
    chew_rec = CHEWREC_FUNC(chewrec_func)
    while i < 2:
        LIBRARY.dtrace_sleep(handle)
        LIBRARY.dtrace_work(handle, None, chew, chew_rec, None)

        time.sleep(1)
        i += 1

    LIBRARY.dtrace_stop(handle)

    walk_func = WALK_FUNC(walk)
    # sorting instead of dtrace_aggregate_walk
    if LIBRARY.dtrace_aggregate_walk_valsorted(handle, walk_func, None) != 0:
        txt = LIBRARY.dtrace_errmsg(handle, LIBRARY.dtrace_errno(handle))
        raise Exception(c_char_p(txt).value)

    # Get errors if any...
    txt = LIBRARY.dtrace_errmsg(handle, LIBRARY.dtrace_errno(handle))
    print c_char_p(txt).value

    # Last: close handle!
    LIBRARY.dtrace_close(handle)
dataset/ETHPy150Open tmetsch/python-dtrace/attic/dtrace.py/run_dtrace/original