private void ReadCallBack(IAsyncResult ar)
{
CDownloadFile cdfParent = (CDownloadFile)ar.AsyncState;
if (cdfParent.m_blFileDownloading == true)
{
try
{
int iBytesRead = -1;
if ((iBytesRead = cdfParent.m_stmResponseStream.EndRead(ar)) > 0)
{
if (this.CompleteFileData.Length < this.BytesDownloaded + iBytesRead)
{
byte[] resizedFileData = new byte[this.CompleteFileData.Length + iBytesRead];
this.CompleteFileData.CopyTo(resizedFileData, 0);
this.ma_bCompleteFile = resizedFileData;
}
Array.Copy(this.ma_bBufferStream, 0, this.CompleteFileData, this.BytesDownloaded, iBytesRead);
cdfParent.m_iReadBytes += iBytesRead;
IAsyncResult arResult = cdfParent.m_stmResponseStream.BeginRead(cdfParent.ma_bBufferStream, 0, CDownloadFile.INT_BUFFER_SIZE, new AsyncCallback(cdfParent.ReadCallBack), cdfParent);
ThreadPool.RegisterWaitForSingleObject(arResult.AsyncWaitHandle, new WaitOrTimerCallback(cdfParent.ReadTimeoutCallback), cdfParent, cdfParent.m_iTimeout, true);
}
else
{
cdfParent.m_blFileDownloading = false;
if (cdfParent.DownloadComplete != null)
{
cdfParent.DownloadComplete(cdfParent);
//cdfParent.DownloadComplete(cdfParent);
}
cdfParent.m_stmResponseStream.Close();
cdfParent.m_stmResponseStream.Dispose();
cdfParent.m_stmResponseStream = null;
}
}
catch (Exception e)
{
cdfParent.m_blFileDownloading = false;
if (cdfParent.DownloadError != null)
{
cdfParent.m_strLastError = e.Message;
cdfParent.DownloadError(cdfParent);
//cdfParent.DownloadError(cdfParent);
}
}
}
}
private void ResponseCallback(IAsyncResult ar)
{
CDownloadFile cdfParent = (CDownloadFile)ar.AsyncState;
try
{
cdfParent.m_wrResponse = cdfParent.m_wrRequest.EndGetResponse(ar);
string strContentLength = null;
if ((strContentLength = cdfParent.m_wrResponse.Headers["Content-Length"]) != null)
{
cdfParent.m_iCompleteFileSize = Convert.ToInt32(strContentLength);
cdfParent.ma_bCompleteFile = new byte[cdfParent.m_iCompleteFileSize];
cdfParent.m_blUnknownSize = false;
if (cdfParent.DownloadDiscoveredFileSize != null)
{
//cdfParent.DownloadDiscoveredFileSize(cdfParent);
cdfParent.DownloadDiscoveredFileSize(cdfParent);
}
}
cdfParent.ma_bCompleteFile = new byte[0];
cdfParent.m_stmResponseStream = cdfParent.m_wrResponse.GetResponseStream();
IAsyncResult arResult = cdfParent.m_stmResponseStream.BeginRead(cdfParent.ma_bBufferStream, 0, CDownloadFile.INT_BUFFER_SIZE, new AsyncCallback(cdfParent.ReadCallBack), cdfParent);
ThreadPool.RegisterWaitForSingleObject(arResult.AsyncWaitHandle, new WaitOrTimerCallback(cdfParent.ReadTimeoutCallback), cdfParent, cdfParent.m_iTimeout, true);
}
catch (Exception e)
{
cdfParent.m_blFileDownloading = false;
if (cdfParent.DownloadError != null)
{
cdfParent.m_strLastError = e.Message;
cdfParent.DownloadError(cdfParent);
//cdfParent.DownloadError(cdfParent);
}
}
}
private void ReadTimeoutCallback(object objState, bool blTimedOut)
{
if (blTimedOut == true)
{
CDownloadFile cdfParent = (CDownloadFile)objState;
if (cdfParent != null && cdfParent.m_stmResponseStream != null)
{
cdfParent.m_stmResponseStream.Close();
if (cdfParent.DownloadError != null)
{
cdfParent.m_strLastError = "Read Timeout";
cdfParent.DownloadError(cdfParent);
//cdfParent.DownloadError(cdfParent);
}
}
}
}