126 static int pipe_fops_read(struct dfs_fd *fd, void *buf, size_t count)  in pipe_fops_read()  argument
146         len = rt_ringbuffer_get(pipe->fifo, buf, count);  in pipe_fops_read()
175 static int pipe_fops_write(struct dfs_fd *fd, const void *buf, size_t count)  in pipe_fops_write()  argument
191     if (count == 0)  in pipe_fops_write()
206         len = rt_ringbuffer_put(pipe->fifo, pbuf, count - ret);  in pipe_fops_write()
211         if (ret == count)  in pipe_fops_write()
344 rt_size_t rt_pipe_read   (rt_device_t device, rt_off_t pos, void *buffer, rt_size_t count)  in rt_pipe_read()  argument
355     if (count == 0) return 0;  in rt_pipe_read()
360     while (read_bytes < count)  in rt_pipe_read()
362         int len = rt_ringbuffer_get(pipe->fifo, &pbuf[read_bytes], count - read_bytes);  in rt_pipe_read()
372 rt_size_t rt_pipe_write  (rt_device_t device, rt_off_t pos, const void *buffer, rt_size_t count)  in rt_pipe_write()  argument
383     if (count == 0) return 0;  in rt_pipe_write()
388     while (write_bytes < count)  in rt_pipe_write()
390         int len = rt_ringbuffer_put(pipe->fifo, &pbuf[write_bytes], count - write_bytes);  in rt_pipe_write()