WebTerminal 组件问题

发布于 2019-06-06 09:15:20 浏览：1597 订阅该版

5 个回答

TakeMe 2019-06-06

这家伙很懒，什么也没写！

shell.c中是这样写的，是不是说明webterminal用不了

#ifndef RT_USING_POSIX
static rt_err_t finsh_rx_ind(rt_device_t dev, rt_size_t size)
{
    RT_ASSERT(shell != RT_NULL);

/* release semaphore to let finsh thread rx data */
    rt_sem_release(&shell->rx_sem);

return RT_EOK;
}

/**
 * @ingroup finsh
 *
 * This function sets the input device of finsh shell.
 *
 * @param device_name the name of new input device.
 */
void finsh_set_device(const char *device_name)
{
    rt_device_t dev = RT_NULL;

RT_ASSERT(shell != RT_NULL);
    dev = rt_device_find(device_name);
    if (dev == RT_NULL)
    {
        rt_kprintf("finsh: can not find device: %s\n", device_name);
        return;
    }

/* check whether it's a same device */
    if (dev == shell->device) return;
    /* open this device and set the new device in finsh shell */
    if (rt_device_open(dev, RT_DEVICE_OFLAG_RDWR | RT_DEVICE_FLAG_INT_RX | \
                       RT_DEVICE_FLAG_STREAM) == RT_EOK)
    {
        if (shell->device != RT_NULL)
        {
            /* close old finsh device */
            rt_device_close(shell->device);
            rt_device_set_rx_indicate(shell->device, RT_NULL);
        }

/* clear line buffer before switch to new device */
        memset(shell->line, 0, sizeof(shell->line));
        shell->line_curpos = shell->line_position = 0;

shell->device = dev;
        rt_device_set_rx_indicate(dev, finsh_rx_ind);
    }
}

/**
 * @ingroup finsh
 *
 * This function returns current finsh shell input device.
 *
 * @return the finsh shell input device name is returned.
 */
const char *finsh_get_device()
{
    RT_ASSERT(shell != RT_NULL);
    return shell->device->parent.name;
}
#endif