public static async Task <Win32_Partition> Create(ManagementBaseObject partition)
{
var result = new Win32_Partition();
var str = $"associators of {{Win32_DiskPartition.DeviceID='{partition["DeviceID"]}'}} where AssocClass= Win32_LogicalDiskToPartition";
var searcher = new ManagementObjectSearcher(str).Get();
int cnt = searcher.Count;
if (cnt == 0)
{
return(null);
}
foreach (var logical in searcher)
{
str = $"select * from Win32_LogicalDisk where Name='{logical["Name"]}'";
var volumeEnumerator = new ManagementObjectSearcher(str).Get().GetEnumerator();
volumeEnumerator.MoveNext();
ManagementObject volume = (ManagementObject)volumeEnumerator.Current;
result.VolumeSize = (long)(ulong)volume["Size"];
result.FreeSpace = (long)(ulong)volume["FreeSpace"];
result.VolumeName = (string)volume["VolumeName"] ?? "";
string driveStr = (string)volume["Name"];
result.DriveChar = driveStringToChar(driveStr);
result.Index = (int)(uint)(partition["Index"] ?? -1);
result.Serial = volume["VolumeSerialNumber"].ToString();
result.StartOffset = (long)(ulong)partition["StartingOffset"];
object ser = logical["VolumeSerialNumber"];
string serStr = ser?.ToString() ?? "";
}
return(result);
}
public static async Task <Win32_DiskDrive> GetInfo(ManagementBaseObject drive)
{
var result = new Win32_DiskDrive();
result.Serial = drive["SerialNumber"]?.ToString().Trim() ?? "";
result.InterfaceType = drive["InterfaceType"]?.ToString();
result.IsUsb = string.Equals(result.InterfaceType, "usb", StringComparison.InvariantCultureIgnoreCase);
result.Model = drive["Model"]?.ToString() ?? "";
var sig = drive["Signature"];
int signature = 0;
if (sig is uint)
{
signature = (int)(uint)sig;
}
result.Signature = signature;
bool nullSerial = string.IsNullOrEmpty(result.Serial);
if (nullSerial && signature == 0)
{
throw new Exception(
"Error: could not find a Serial or Signature for drive so there is no way to uniquely identify it.");
}
uint numPartitions = (uint)(drive["Partitions"] ?? 0);
//uint index = (uint) (drive["Index"] ?? 0);
result.SizeInBytes = (long)(ulong)(drive["Size"] ?? 0);
string str = $"associators of {{Win32_DiskDrive.DeviceID='{drive["DeviceID"]}'}} where AssocClass = Win32_DiskDriveToDiskPartition";
var partitionCllection_w32 = await Task.Run(() => new ManagementObjectSearcher(str).Get()
.Cast <ManagementBaseObject>()
.ToArray());
var partitionTasks = partitionCllection_w32.Select(p => Task.Run(() => Win32_Partition.Create(p))).ToArray();
result.Partitions = (await Task.WhenAll(partitionTasks).ConfigureAwait(false))
.Where(win32_part => win32_part != null)
.ToArray();
result.NumPartitions = (uint)result.Partitions.Length;
result.Partitions.ForEach(part => part.Drive = result);
return(result);
}