line_protocol.py 文件源码

def _convert_timestamp(timestamp, precision=None):
    if isinstance(timestamp, Integral):
        return timestamp  # assume precision is correct if timestamp is int
    if isinstance(_get_unicode(timestamp), text_type):
        timestamp = parse(timestamp)
    if isinstance(timestamp, datetime):
        if not timestamp.tzinfo:
            timestamp = UTC.localize(timestamp)
        ns = (timestamp - EPOCH).total_seconds() * 1e9
        if precision is None or precision == 'n':
            return ns
        elif precision == 'u':
            return ns / 1e3
        elif precision == 'ms':
            return ns / 1e6
        elif precision == 's':
            return ns / 1e9
        elif precision == 'm':
            return ns / 1e9 / 60
        elif precision == 'h':
            return ns / 1e9 / 3600
    raise ValueError(timestamp)