在QT中获取磁盘类型 [英] Get disk type in QT

问题描述

我想在QT中获取磁盘类型(SSD或HDD).我已经检查了 QStorageInfo ，但是找不到适合我用途的任何东西.顺便说一下，我需要在Windows和Linux上都可以使用的解决方案.

I want to get disk type (SSD or HDD) in QT. I've checked QStorageInfo but I could not find anything useful for my purpose. By the way I need a solution that's work on both Windows and Linux.

推荐答案

对于linux，您可以通过读取特殊文件来判断内核是否已检测到SSD磁盘

For linux, you can tell whether the kernel has detected a SSD disk by reading special file

/sys/block/<disk>/queue/rotational

例如，cat/sys/block/sda/queue/rotational如果sda磁盘是HDD则写入1，如果是SSD则写入0

For instance, cat /sys/block/sda/queue/rotational writes 1 if sda disk is HDD and 0 if it's SSD.

对于Windows，您可以通过打开特殊文件 \\.\ PhysicalDrive< number> (例如 \\.\ PhysicalDrive0 )来打开驱动器.可以与 <使用 <代码> StorageDeviceSeekPenaltyProperty 可能就是您想要的，因为HDD会寻道，而SSD则不会.las，我现在没有Windows环境可以测试.

For Windows, you can open a drive by opening special file \\.\PhysicalDrive<number>, for instance \\.\PhysicalDrive0. It can the be used with DeviceIOControl to query properties, using IOCTL_STORAGE_QUERY_PROPERTY IO control. It seems StorageDeviceSeekPenaltyProperty may be what you're after, as HDD have a seek penalty while SSD don't. Alas I don't have a windows environment around to test right now.

对于可移植性，我高度怀疑这种与系统有关的信息是否可以通过便携式方式获得.您必须使用 #ifdef / #else / #endif 宏来根据当前目标选择实现.

For portability, I highly doubt such system-dependent information is available in a portable way. You'll have to use #ifdef/#else/#endif macros to select an implementation depending on current target.

这篇关于在QT中获取磁盘类型的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！