安装 iPod 上的多个安装事件

发布于 2024-10-10 23:06:56 字数 922 浏览 2 评论 0原文

我正在开发一个应用程序，它必须检测存储卷是否已安装或卸载。我正在使用 GIO 来实现这一点。我正在监听 mount-added 和 mount-removed 信号。当我安装/卸载笔式驱动器时，一切正常。但是，我在安装 iPod 时遇到问题。我在安装和卸载时分别收到两个回调。我假设 GMount 对象之一是阴影但 g_mount_is_shadowed 两者都返回 false。我如何决定处理哪一个以及忽略哪一个？我无法同时处理两者。我必须检测与存储设备相对应的安装/卸载并仅对其进行处理。

int main()
{
    g_type_init();
    GVolumeMonitor* volume_monitor = g_volume_monitor_get();
    g_signal_connect(G_OBJECT(volume_monitor), "mount-added", G_CALLBACK(mount_added), NULL);
    g_signal_connect(G_OBJECT(volume_monitor), "mount-removed", G_CALLBACK(mount_removed), NULL);

    GMainLoop* main_loop = g_main_loop_new(NULL, FALSE);        
    g_main_loop_run(main_loop);
    ...
}

原文

I am working on an app which has to detect if a storage volume is mounted or unmounted. I am using GIO for that. I listening for the mount-added and mount-removed signals. Everything works fine when I mount/unmount a pen drive. However, I am seeing an issue when mounting an iPod. I am getting two callbacks each on mount and unmount. I assumed one of the GMount objects would be shadowed but g_mount_is_shadowed is returning false for both. How do I decide which one to process and which to ignore? I cannot process both. I have to detect the mount/unmount corresponding to the storage device and process only that.

int main()
{
    g_type_init();
    GVolumeMonitor* volume_monitor = g_volume_monitor_get();
    g_signal_connect(G_OBJECT(volume_monitor), "mount-added", G_CALLBACK(mount_added), NULL);
    g_signal_connect(G_OBJECT(volume_monitor), "mount-removed", G_CALLBACK(mount_removed), NULL);

    GMainLoop* main_loop = g_main_loop_new(NULL, FALSE);        
    g_main_loop_run(main_loop);
    ...
}

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‖放下 2024-10-17 23:06:56

我已经想通了。 GIO 为每个添加的文件系统发出一个 mount-added 信号。 iPod 有两种文件系统 - 一种用于操作系统，另一种用于存储音乐。因此反复回调。卸载时也会发生同样的情况。这与阴影坐骑无关。不幸的是，我仍然不知道如何区分这两个坐骑。 GIO 显示的唯一区别是其中一个 GMount 对象没有与其关联的 GVolume 对象。我不知道如何解释这一点。