/// <summary>
///
/// </summary>
/// <param name="progress"></param>
private void OnUploadProgress(UploadProgressArgs progress)
{
if (this.UploadProgress != null)
{
this.UploadProgress(this, progress);
}
}
/// <summary>
/// Initiates async upload of blob data from a stream.
/// </summary>
/// <param name="stream">Stream containing data to be uploaded.</param>
/// <param name="state">State to be passed as userState in the progress and completion event args.</param>
public void UploadAsync(Stream stream, object state)
{
ThreadPool.QueueUserWorkItem(
new WaitCallback((object o) =>
{
UploadCompletedArgs e = new UploadCompletedArgs(null, false, o);
UploadProgressArgs progress = new UploadProgressArgs(o);
SmashClient client = new SmashClient(this.identity);
try
{
using (var streamcopy = stream)
{
stream = null;
streamcopy.Position = 0;
int id = 0;
long length = streamcopy.Length;
int multiplier = 1;
for (long len = 0; len < length && !progress.Cancel; )
{
byte[] data = new byte[65536 * multiplier];
int read = streamcopy.Read(data, 0, (int)Math.Min(65536 * multiplier, length - len));
if (read == 0)
{
throw new System.IO.EndOfStreamException("Stream shorter than expected.");
}
if (read < data.Length)
{
byte[] tmp = new byte[read];
Array.Copy(data, tmp, read);
data = tmp;
}
long duration = DateTime.UtcNow.Ticks;
client.AddPageToBlob(this.meetingToken, this.sessionID, this.clientID, this.blobAddress, this.blobSharedSignature, data, id, len + read >= length);
duration = ((DateTime.UtcNow.Ticks - duration) / 10000) + 1;
multiplier = Math.Max(1, Math.Min(16, 10000 / (int)duration));
len += read;
id++;
progress.UploadedSize = len;
OnUploadProgress(progress);
}
}
if (progress.Cancel)
{
e = new UploadCompletedArgs(null, true, o);
}
else
{
e.BlobAddress = this.blobAddress;
}
}
catch (Exception ex)
{
e = new UploadCompletedArgs(ex, false, o);
}
finally
{
client.Dispose();
}
OnUploadCompleted(e);
}),
state);
}