async static Task <int> asynchLoadBuffer(int offset, int count)
{
//if the temporary input stream is null, throw a NullReferenceException
if (tempInputStream == null)
{
throw new NullReferenceException();
}
//if arguments are out of range, throw an ArgumentOutOfRangeException
if (offset < 0 || offset + count > tempInputStream.Length || count <= 0)
{
throw new ArgumentOutOfRangeException();
}
//if the temporary input buffer is null, create an instance
if (tempInputBuffer == null)
{
tempInputBuffer = new byte[tempInputStream.Length];
}
return(await tempInputStream.ReadAsync(tempInputBuffer, offset, count));
}