public static UsbDriveInfo LoadUsbFromDriveLetter(char driveLetter)
{
const int maxAttempts = 5;
try
{
if (char.IsLetter(driveLetter))
{
for (int attempts = 0; attempts < maxAttempts; ++attempts)
{
try
{
ManagementObject logicalObj = GetLogicalObjectFromDriveLetter(driveLetter);
logicalObj.Get();
ManagementObject diskObj = GetDiskObjectFromLogical(logicalObj);
string volumeName = logicalObj["VolumeName"].ToString();
object serialNumberObject = logicalObj["VolumeSerialNumber"];
string modelName = diskObj["Model"].ToString();
object pnpDeviceId = diskObj["PNPDeviceID"];
string uniqueId = FormatDriveUniqueID(serialNumberObject != null ? serialNumberObject.ToString() : "",
pnpDeviceId != null ? pnpDeviceId.ToString() : "");
UsbDriveInfo driveInfo = UsbDriveList.Instance.GetUsbInfoByUniqueId(uniqueId);
if (driveInfo == null)
{
driveInfo = UsbDriveList.Instance.CreateEmptyUsbInfo(modelName, volumeName, uniqueId);
}
string sizeString = logicalObj["Size"].ToString();
System.UInt64 sizeBytes = 0;
System.UInt64.TryParse(sizeString, out sizeBytes);
driveInfo.__MarkActive(driveLetter, sizeBytes);
diskObj.Dispose();
logicalObj.Dispose();
return(driveInfo);
}
catch (System.Exception)
{
// failed, try again until maxAttempts
//UsbDriveList.__LogError( null, "LoadUsbFromDriveLetter attempt failed : " + (attempts + 1) + "/" + maxAttempts, e );
System.Threading.Thread.Sleep(200);
}
}
}
else
{
throw new Exception("Drive letter is not valid " + driveLetter.ToString());
}
}
catch (System.Exception e)
{
UsbDriveList.__LogError(null, "UsbPrivate.LoadUsbFromDriveLetter", e);
return(null);
}
return(null);
}
public UsbDriveInfo CreateEmptyUsbInfo(string modelName, string volumeName, string uniqueId)
{
UsbDriveInfo driveInfo = new UsbDriveInfo(modelName, volumeName, uniqueId);
mDriveInfoList.Add(driveInfo);
return(driveInfo);
}
public override bool Equals(object obj)
{
if (obj != null && obj is UsbDriveInfo)
{
UsbDriveInfo lhs = (UsbDriveInfo)obj;
return(string.Compare(lhs.UniqueID, UniqueID, false) == 0);
}
else
{
return(base.Equals(obj));
}
}
void WinThread_mDriveDetector_DeviceInserted(object driveLetterObject)
{
try
{
char driveLetter = ( char )driveLetterObject;
UsbDriveInfo driveInfo = UsbPrivate.LoadUsbFromDriveLetter(driveLetter);
if (DeviceInserted != null && driveInfo != null)
{
DeviceInserted(this, driveInfo);
}
}
catch (System.Exception e)
{
__LogError(this, "DeviceInserted failed", e);
}
}
public static UsbDriveInfo BuildFromXml(XmlNode parentNode)
{
string uniqueId = PWLib.XmlHelp.DirtyString(PWLib.XmlHelp.GetAttribute(parentNode, "uniqueid", ""));
string modelName = PWLib.XmlHelp.DirtyString(PWLib.XmlHelp.GetAttribute(parentNode, "modelname", ""));
string volumeName = PWLib.XmlHelp.DirtyString(PWLib.XmlHelp.GetAttribute(parentNode, "volumename", ""));
// see if usb device is currently plugged in, otherwise return new usbdriveinfo object which is marked inactive
UsbDriveInfo foundDriveInfo = UsbDriveList.Instance.GetUsbInfoByUniqueId(uniqueId);
if (foundDriveInfo != null)
{
return(foundDriveInfo);
}
else
{
return(UsbDriveList.Instance.CreateEmptyUsbInfo(modelName, volumeName, uniqueId));
}
}
void WinThread_mDriveDetector_DeviceRemoved(object driveLetterObject)
{
try
{
char driveLetter = (char)driveLetterObject;
UsbDriveInfo driveInfo = GetUsbInfoByDriveLetter(driveLetter);
if (driveInfo != null)
{
driveInfo.__MarkInactive();
if (DeviceRemoved != null)
{
DeviceRemoved(this, driveInfo);
}
}
}
catch (Exception e)
{
__LogError(this, "DeviceRemoved", e);
}
}
void mDriveDetector_QueryRemove(object sender, char driveLetter, out bool allowRemoval)
{
allowRemoval = true;
try
{
UsbDriveInfo driveInfo = GetUsbInfoByDriveLetter(driveLetter);
if (driveInfo != null)
{
allowRemoval = !driveInfo.MediaLocked;
if (DeviceQueryRemove != null)
{
DeviceQueryRemove(this, driveInfo, ref allowRemoval);
}
}
}
catch (System.Exception e)
{
__LogError(this, "QueryRemove", e);
}
}
public static List <UsbDriveInfo> BuildUsbDiskList()
{
List <UsbDriveInfo> list = new List <UsbDriveInfo>();
try
{
ManagementObjectSearcher searcher = new ManagementObjectSearcher("root\\CIMV2", "SELECT * FROM Win32_DiskDrive");
foreach (ManagementObject diskObj in searcher.Get())
{
if (diskObj["InterfaceType"].ToString() == "USB")
{
/* Contents of diskObj
*
*
* foreach ( System.Management.PropertyData name in diskObj.Properties )
* {
* System.Diagnostics.Debug.WriteLine( name.Name + " : " + ( name.Value != null ? name.Value.ToString() : "" ) );
* }
*
* Availability :
* BytesPerSector : 512
* Capabilities : System.UInt16[]
* CapabilityDescriptions : System.String[]
* Caption : Samsung S2 Portable USB Device
* CompressionMethod :
* ConfigManagerErrorCode : 0
* ConfigManagerUserConfig : False
* CreationClassName : Win32_DiskDrive
* DefaultBlockSize :
* Description : Disk drive
* DeviceID : \\.\PHYSICALDRIVE2
* ErrorCleared :
* ErrorDescription :
* ErrorMethodology :
* FirmwareRevision :
* Index : 2
* InstallDate :
* InterfaceType : USB
* LastErrorCode :
* Manufacturer : (Standard disk drives)
* MaxBlockSize :
* MaxMediaSize :
* MediaLoaded : True
* MediaType : External hard disk media
* MinBlockSize :
* Model : Samsung S2 Portable USB Device
* Name : \\.\PHYSICALDRIVE2
* NeedsCleaning :
* NumberOfMediaSupported :
* Partitions : 1
* PNPDeviceID : USBSTOR\DISK&VEN_SAMSUNG&PROD_S2_PORTABLE&REV_\00000011E09310500A1B&0
* PowerManagementCapabilities :
* PowerManagementSupported :
* SCSIBus :
* SCSILogicalUnit :
* SCSIPort :
* SCSITargetId :
* SectorsPerTrack : 63
* SerialNumber :
* Signature : 3392227871
* Size : 1000202273280
* Status : OK
* StatusInfo :
* SystemCreationClassName : Win32_ComputerSystem
* SystemName : SOFTWARE118
* TotalCylinders : 121601
* TotalHeads : 255
* TotalSectors : 1953520065
* TotalTracks : 31008255
* TracksPerCylinder : 255
*
*/
foreach (ManagementObject partitionObj in diskObj.GetRelated("Win32_DiskPartition"))
{
/* contents of partitionObj
*
* Access :
* Availability :
* BlockSize : 512
* Bootable : True
* BootPartition : True
* Caption : Disk #2, Partition #0
* ConfigManagerErrorCode :
* ConfigManagerUserConfig :
* CreationClassName : Win32_DiskPartition
* Description : Installable File System
* DeviceID : Disk #2, Partition #0
* DiskIndex : 2
* ErrorCleared :
* ErrorDescription :
* ErrorMethodology :
* HiddenSectors :
* Index : 0
* InstallDate :
* LastErrorCode :
* Name : Disk #2, Partition #0
* NumberOfBlocks : 1953520001
* PNPDeviceID :
* PowerManagementCapabilities :
* PowerManagementSupported :
* PrimaryPartition : True
* Purpose :
* RewritePartition :
* Size : 1000202240512
* StartingOffset : 32768
* Status :
* StatusInfo :
* SystemCreationClassName : Win32_ComputerSystem
* SystemName : SOFTWARE118
* Type : Installable File System
*
*/
foreach (ManagementBaseObject logicalObj in partitionObj.GetRelated("Win32_LogicalDisk"))
{
/* Contents of logicalObj
* Access : 0
* Availability :
* BlockSize :
* Caption : G:
* Compressed : False
* ConfigManagerErrorCode :
* ConfigManagerUserConfig :
* CreationClassName : Win32_LogicalDisk
* Description : Local Fixed Disk
* DeviceID : G:
* DriveType : 3
* ErrorCleared :
* ErrorDescription :
* ErrorMethodology :
* FileSystem : NTFS
* FreeSpace : 424120320
* InstallDate :
* LastErrorCode :
* MaximumComponentLength : 255
* MediaType : 12
* Name : G:
* NumberOfBlocks :
* PNPDeviceID :
* PowerManagementCapabilities :
* PowerManagementSupported :
* ProviderName :
* Purpose :
* QuotasDisabled : True
* QuotasIncomplete : False
* QuotasRebuilding : False
* Size : 1000202240000
* Status :
* StatusInfo :
* SupportsDiskQuotas : True
* SupportsFileBasedCompression : True
* SystemCreationClassName : Win32_ComputerSystem
* SystemName : SOFTWARE118
* VolumeDirty : False
* VolumeName : PW
* VolumeSerialNumber : 34FA652F
*/
string modelName = diskObj["Model"].ToString();
string volumeName = logicalObj["VolumeName"].ToString();
object serialNumberObject = logicalObj["VolumeSerialNumber"];
object pnpDeviceId = diskObj["PNPDeviceID"];
string uniqueId = FormatDriveUniqueID(serialNumberObject != null ? serialNumberObject.ToString() : "",
pnpDeviceId != null ? pnpDeviceId.ToString() : "");
UsbDriveInfo driveInfo = UsbDriveList.Instance.GetUsbInfoByUniqueId(uniqueId);
if (driveInfo == null)
{
driveInfo = UsbDriveList.Instance.CreateEmptyUsbInfo(modelName, volumeName, uniqueId);
}
string sizeString = logicalObj["Size"].ToString();
System.UInt64 sizeBytes = 0;
System.UInt64.TryParse(sizeString, out sizeBytes);
driveInfo.__MarkActive(logicalObj["Name"].ToString()[0], sizeBytes);
list.Add(driveInfo);
}
}
}
}
}
catch (ManagementException)
{
}
return(list);
}
