helpers.py 文件源码

def normalize(tstamp):
    # Get fractional adjustment from whole seconds
    fadj, tstamp.twsec = math.modf(tstamp.twsec)

    # Adjust fractional seconds and get whole seconds adjustment
    tstamp.tfsec, wadj = math.modf(tstamp.tfsec + fadj)

    # If fractional seconds are negative, borrow a second from the whole
    # seconds to make it positive, normalizing to [0,1)
    if (tstamp.tfsec < 0.0):
        tstamp.tfsec += 1.0;
        wadj -= 1.0;

    tstamp.twsec += wadj;