private unsafe int ReadUnsafe(byte[] buffer, int offset, int count, int timeout)
{
var length = Convert.ToUInt32(count);
uint bytes_read = 0;
if (buffer == null)
{
throw new ArgumentNullException(nameof(buffer));
}
if (offset + count > buffer.Length)
{
throw new ArgumentException("The sum of offset and count is larger than the buffer length");
}
if (offset < 0)
{
throw new ArgumentOutOfRangeException(nameof(offset));
}
if (count < 0)
{
throw new ArgumentOutOfRangeException(nameof(count));
fixed(byte *p = &buffer[offset])
{
IntPtr ptr = (IntPtr)p;
var ret = NativeApi.DataRead(_handle, ptr, length, timeout, out bytes_read);
if (ret < NativeApi.InspectionError.None)
{
throw ExceptionFactory.CreateException(ret);
}
}
return((int)bytes_read);
}