/// <summary>
/// Reads value of attribute and returns it as attribute array
/// </summary>
/// <param name="attribute">Attribute whose value should be read</param>
/// <param name="value">Location that receives attribute value</param>
public static void ConvertValue(ref CK_ATTRIBUTE attribute, out CK_ATTRIBUTE[] value)
{
int ckAttributeSize = UnmanagedMemory.SizeOf(typeof(CK_ATTRIBUTE));
int attrCount = Convert.ToInt32(attribute.valueLen) / ckAttributeSize;
int attrCountMod = Convert.ToInt32(attribute.valueLen) % ckAttributeSize;
if (attrCountMod != 0)
{
throw new Exception("Unable to convert attribute value to attribute array");
}
if (attrCount == 0)
{
value = null;
}
else
{
CK_ATTRIBUTE[] attrs = new CK_ATTRIBUTE[attrCount];
for (int i = 0; i < attrCount; i++)
{
IntPtr tempPointer = new IntPtr(attribute.value.ToInt64() + (i * ckAttributeSize));
#if SILVERLIGHT
CK_ATTRIBUTE_CLASS attrClass = (CK_ATTRIBUTE_CLASS)UnmanagedMemory.Read(tempPointer, typeof(CK_ATTRIBUTE_CLASS));
attrClass.ToCkAttributeStruct(ref attrs[i]);
#else
attrs[i] = (CK_ATTRIBUTE)UnmanagedMemory.Read(tempPointer, typeof(CK_ATTRIBUTE));
#endif
}
value = attrs;
}
}
