/// <summary>
/// Create a new stream wrapper
/// </summary>
/// <param name="stream">The underlying stream</param>
/// <param name="start">The start position from where to read data</param>
/// <param name="length">The length to read</param>
public StreamSendWrapper(ThreadSafeStream stream, long start, long length)
{
if (start < 0)
{
throw new Exception("Provided start value cannot be less than 0.");
}
if (length < 0)
{
throw new Exception("Provided length value cannot be less than 0.");
}
this.ThreadSafeStream = stream;
this.Start = start;
this.Length = length;
}
/// <summary>
/// Return the MD5 for the specific part of the stream only.
/// </summary>
/// <returns></returns>
public string MD5CheckSum()
{
using (MemoryStream ms = new MemoryStream())
{
ThreadSafeStream.CopyTo(ms, Start, Length, 8000);
#if WINDOWS_PHONE
using (var md5 = new DPSBase.MD5Managed())
{
#else
using (var md5 = System.Security.Cryptography.MD5.Create())
{
#endif
return(BitConverter.ToString(md5.ComputeHash(ms)).Replace("-", ""));
}
}
}
/// <summary>
/// Create a new stream wrapper and set Start and Length to encompass the entire Stream
/// </summary>
/// <param name="stream">The underlying stream</param>
public StreamSendWrapper(ThreadSafeStream stream)
{
this.ThreadSafeStream = stream;
this.Start = 0;
this.Length = stream.Length;
}
/// <summary>
/// Dispose the internal ThreadSafeStream
/// </summary>
public void Dispose()
{
ThreadSafeStream.Dispose();
}