安装磁盘映像时从磁盘仲裁双回调

static void got_disk(DADiskRef disk, void *context)
{
    CFDictionaryRef dict = DADiskCopyDescription(disk);
    NSNumber *whole = CFDictionaryGetValue(dict, kDADiskDescriptionMediaWholeKey);
    if (![whole boolValue]) {
        // Handle your event only with the partition, not the "whole" disk
        ...
    }
}

CFShow(dict)

[[[NSWorkspace sharedWorkspace] notificationCenter] addObserver:self selector:@selector(mediaMounted:) name:NSWorkspaceDidMountNotification object:[NSWorkspace sharedWorkspace]];

[[[NSWorkspace sharedWorkspace] notificationCenter] addObserver:self selector:@selector(mediaUnmounted:) name:NSWorkspaceWillUnmountNotification object:[NSWorkspace sharedWorkspace]];