+Drive::unmount ()
+{
+ LOG_DISK_NC("Unmount operation started");
+
+ DASessionRef session = DASessionCreate(kCFAllocatorDefault);
+ if (!session) {
+ return false;
+ }
+
+ DADiskRef disk = DADiskCreateFromBSDName(kCFAllocatorDefault, session, _device.c_str());
+ if (!disk) {
+ return false;
+ }
+ LOG_DISK("Requesting unmount of %1 from %2", _device, thread_id());
+ bool success = false;
+ DADiskUnmount(disk, kDADiskUnmountOptionWhole, &done_callback, &success);
+ CFRelease (disk);
+
+ CFRunLoopRef run_loop = CFRunLoopGetCurrent ();
+ DASessionScheduleWithRunLoop (session, run_loop, kCFRunLoopDefaultMode);
+ CFRunLoopStop (run_loop);
+ CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.5, 0);
+ CFRelease(session);
+
+ LOG_DISK_NC("End of unmount");
+ return success;
+}
+
+
+void
+disk_write_finished ()