| public Read ( long offset, byte buffer, int index, int count ) : int | ||
| offset | long | The offset into the stream to start reading. |
| buffer | byte | The buffer to read to. |
| index | int | The index into the buffer to start writing to. |
| count | int | The number of bytes to read. |
| return | int | |
public int Read(long offset, byte[] buffer, int index, int count)
{
if (offset < 0L) throw new ArgumentOutOfRangeException("offset");
if (buffer == null) throw new ArgumentNullException("buffer");
if (index < 0 || index + count > buffer.Length) throw new ArgumentOutOfRangeException("index");
if (count < 0) throw new ArgumentOutOfRangeException("count");
if (offset >= _wrapper.EofOffset) return 0;
var startIdx = EnsureAvailable(offset, ref count, false);
Buffer.BlockCopy(_data, startIdx, buffer, index, count);
return count;
}
public override int Read(byte[] buffer, int offset, int count)
{
CheckLock();
int num = _buffer.Read(Position, buffer, offset, count);
Seek(num, SeekOrigin.Current);
return(num);
}