_mpdu.py 文件源码

def _iesubelmsmtreqstasta_(s,sid):
    """ :returns: parsed subelement of type sta request for sta counters in msmt request """
    ret = s
    if sid == std.EID_MSMT_REQ_SUBELEMENT_STA_RPT:
        # Std Fig. 8-117
        cnt,to,t = struct.unpack_from('=I2H',s)
        ts = s[8:]
        ret = {'msmt-cnt':cnt,
               'trigger-timeout':to,
               'sta-cntr-trigger-cond':_stacntrtriggerconds_(t),
               'thresholds':{}}

        # optional count fields are 4-bytes assuming they are appending in order
        for thresh in ['fail','fcs-error','mult-retry','dup','rts-fail','ack-fail','retry-cnt']:
            if ret['sta-cntr-trigger-cond'][thresh]:
                ret['thresholds'][thresh] = struct.unpack_from('=I',ts)[0]
                ts = ts[4:]
    elif sid == std.EID_MSMT_REQ_SUBELEMENT_STA_VEND:
        ret = _parseie_(std.EID_VEND_SPEC,s)
    return ret

# STA Counter Trigger Conditions Std Fig. 8-118