internal static async Task <MorphicResult <ExtendedPInvoke.STORAGE_DEVICE_NUMBER, StorageDeviceNumberError> > GetStorageDeviceNumberAsync(string devicePath)
{
var deviceHandle = PInvoke.Kernel32.CreateFile(devicePath, (PInvoke.Kernel32.ACCESS_MASK) 0, PInvoke.Kernel32.FileShare.FILE_SHARE_READ, IntPtr.Zero, PInvoke.Kernel32.CreationDisposition.OPEN_EXISTING, (PInvoke.Kernel32.CreateFileFlags) 0, PInvoke.Kernel32.SafeObjectHandle.Null);
if (deviceHandle.IsInvalid == true)
{
var win32ErrorCode = Marshal.GetLastWin32Error();
return(MorphicResult.ErrorResult(StorageDeviceNumberError.Win32Error((uint)win32ErrorCode)));
}
//
// get the device number for this storage device
var storageDeviceNumber = new ExtendedPInvoke.STORAGE_DEVICE_NUMBER();
var storageDeviceNumberMemoryObject = new Memory <ExtendedPInvoke.STORAGE_DEVICE_NUMBER>(new ExtendedPInvoke.STORAGE_DEVICE_NUMBER[] { storageDeviceNumber });
//
try
{
uint numberOfBytes;
try
{
numberOfBytes = await PInvoke.Kernel32.DeviceIoControlAsync <byte /* for null */, ExtendedPInvoke.STORAGE_DEVICE_NUMBER>(
hDevice : deviceHandle,
dwIoControlCode : ExtendedPInvoke.IOCTL_STORAGE_GET_DEVICE_NUMBER,
inBuffer : null,
outBuffer : storageDeviceNumberMemoryObject,
cancellationToken : System.Threading.CancellationToken.None);
}
catch (PInvoke.Win32Exception ex)
{
return(MorphicResult.ErrorResult(StorageDeviceNumberError.Win32Error((uint)ex.NativeErrorCode)));
}
var storageDeviceNumberAsArray = storageDeviceNumberMemoryObject.ToArray();
if (storageDeviceNumberAsArray.Length != 1)
{
return(MorphicResult.ErrorResult(StorageDeviceNumberError.CouldNotRetrieveStorageDeviceNumbers));
}
storageDeviceNumber = storageDeviceNumberAsArray[0];
}
finally
{
deviceHandle.Close();
}
return(MorphicResult.OkResult(storageDeviceNumber));
}
private Disk(Device device, ExtendedPInvoke.STORAGE_DEVICE_NUMBER storageDeviceNumber)
{
_device = device;
this.StorageDeviceNumber = storageDeviceNumber;
}
