System.Diagnostics.NtProcessInfoHelper.GetNewBufferSize C# (CSharp) Method

        private static int GetNewBufferSize(int existingBufferSize, int requiredSize)
        {
            if (requiredSize == 0)
            {
                //
                // On some old OS like win2000, requiredSize will not be set if the buffer
                // passed to NtQuerySystemInformation is not enough.
                //
                int newSize = existingBufferSize * 2;
                if (newSize < existingBufferSize)
                {
                    // In reality, we should never overflow.
                    // Adding the code here just in case it happens.    
                    throw new OutOfMemoryException();
                }
                return newSize;
            }
            else
            {
                // allocating a few more kilo bytes just in case there are some new process
                // kicked in since new call to NtQuerySystemInformation
                int newSize = requiredSize + 1024 * 10;
                if (newSize < requiredSize)
                {
                    throw new OutOfMemoryException();
                }
                return newSize;
            }
        }