_utils.py 文件源码

def create_pipe():
    rfd, wfd = os.pipe()
    # On Windows, os.pipe() creates non-inheritable handles
    if not MS_WINDOWS:
        set_inheritable(rfd, False)
        set_inheritable(wfd, False)

    rpipe = ReadPipe(rfd)
    wpipe = WritePipe(wfd)
    return (rpipe, wpipe)