/// <summary>
/// Create a new virtual disk.
/// </summary>
/// <param name="type">The type of disk to create (see <see cref="SupportedDiskTypes"/>)</param>
/// <param name="variant">The variant of the type to create (see <see cref="GetSupportedDiskVariants"/>)</param>
/// <param name="path">The path (or URI) for the disk to create</param>
/// <param name="capacity">The capacity of the new disk</param>
/// <param name="geometry">The geometry of the new disk (or null).</param>
/// <param name="user">The user identity to use when accessing the <c>path</c> (or null)</param>
/// <param name="password">The password to use when accessing the <c>path</c> (or null)</param>
/// <param name="parameters">Untyped parameters controlling the creation process (TBD)</param>
/// <returns>The newly created disk</returns>
public static VirtualDisk CreateDisk(string type, string variant, string path, long capacity, Geometry geometry, string user, string password, Dictionary<string, string> parameters)
{
VirtualDiskParameters diskParams = new VirtualDiskParameters()
{
AdapterType = GenericDiskAdapterType.Scsi,
Capacity = capacity,
Geometry = geometry,
};
if (parameters != null)
{
foreach (var key in parameters.Keys)
{
diskParams.ExtendedParameters[key] = parameters[key];
}
}
return CreateDisk(type, variant, path, diskParams, user, password);
}
/// <summary>
/// Create a new virtual disk.
/// </summary>
/// <param name="type">The type of disk to create (see <see cref="SupportedDiskTypes"/>)</param>
/// <param name="variant">The variant of the type to create (see <see cref="GetSupportedDiskVariants"/>)</param>
/// <param name="path">The path (or URI) for the disk to create</param>
/// <param name="capacity">The capacity of the new disk</param>
/// <param name="geometry">The geometry of the new disk (or null).</param>
/// <param name="parameters">Untyped parameters controlling the creation process (TBD)</param>
/// <returns>The newly created disk</returns>
public static VirtualDisk CreateDisk(string type, string variant, string path, long capacity, Geometry geometry, Dictionary<string, string> parameters)
{
return CreateDisk(type, variant, path, capacity, geometry, null, null, parameters);
}
/// <summary>
/// Converts a geometry into one that is BIOS-safe, if not already.
/// </summary>
/// <param name="geometry">The geometry to make BIOS-safe.</param>
/// <param name="capacity">The capacity of the disk.</param>
/// <returns>The new geometry</returns>
/// <remarks>This method returns the LBA-Assisted geometry if the given geometry isn't BIOS-safe.</remarks>
public static Geometry MakeBiosSafe(Geometry geometry, long capacity)
{
if (geometry == null)
{
return LbaAssistedBiosGeometry(capacity);
}
else if (geometry.IsBiosSafe)
{
return geometry;
}
else
{
return LbaAssistedBiosGeometry(capacity);
}
}
/// <summary>
/// Create a new virtual disk, possibly within an existing disk.
/// </summary>
/// <param name="fileSystem">The file system to create the disk on</param>
/// <param name="type">The type of disk to create (see <see cref="SupportedDiskTypes"/>)</param>
/// <param name="variant">The variant of the type to create (see <see cref="GetSupportedDiskVariants"/>)</param>
/// <param name="path">The path (or URI) for the disk to create</param>
/// <param name="capacity">The capacity of the new disk</param>
/// <param name="geometry">The geometry of the new disk (or null).</param>
/// <param name="parameters">Untyped parameters controlling the creation process (TBD)</param>
/// <returns>The newly created disk</returns>
public static VirtualDisk CreateDisk(DiscFileSystem fileSystem, string type, string variant, string path, long capacity, Geometry geometry, Dictionary<string, string> parameters)
{
VirtualDiskFactory factory = TypeMap[type];
VirtualDiskParameters diskParams = new VirtualDiskParameters()
{
AdapterType = GenericDiskAdapterType.Scsi,
Capacity = capacity,
Geometry = geometry,
};
if (parameters != null)
{
foreach (var key in parameters.Keys)
{
diskParams.ExtendedParameters[key] = parameters[key];
}
}
return factory.CreateDisk(new DiscFileLocator(fileSystem, Utilities.GetDirectoryFromPath(path)), variant.ToLowerInvariant(), Utilities.GetFileFromPath(path), diskParams);
}
/// <summary>
/// Gets the 'Large' BIOS geometry for a disk, given it's physical geometry.
/// </summary>
/// <param name="ideGeometry">The physical (aka IDE) geometry of the disk</param>
/// <returns>The geometry a BIOS using the 'Large' method for calculating disk geometry will indicate for the disk</returns>
public static Geometry LargeBiosGeometry(Geometry ideGeometry)
{
int cylinders = ideGeometry.Cylinders;
int heads = ideGeometry.HeadsPerCylinder;
int sectors = ideGeometry.SectorsPerTrack;
while (cylinders > 1024 && heads <= 127)
{
cylinders >>= 1;
heads <<= 1;
}
return new Geometry(cylinders, heads, sectors);
}
