basetest.py 文件源码

def RestartCapture(self):
    """Resume capturing output to a file (after calling StopCapture)."""
    # Original stream fd
    assert self._uncaptured_fd

    # Append stream to file
    cap_fd = os.open(self._filename,
                     os.O_CREAT | os.O_APPEND | os.O_WRONLY,
                     0600)

    # Send stream to this file
    self._stream.flush()
    os.dup2(cap_fd, self._fd)
    os.close(cap_fd)