private void ManagerThread()
{
var block = Info.DownloadBlockList[_completedThread + ThreadNum - 1];
if (urlNum >= Url.Length)
{
urlNum = 0;
}
var threadItem = new DownloadThread()
{
ID = _completedThread + ThreadNum - 1,
DownloadUrl = Url[urlNum],
Path = DownloadPath,
Block = block,
Info = Info,
};
threadItem.ThreadCompletedEvent += HttpDownload_ThreadCompletedEvent;
urlNum++;
_threads.Add(threadItem);
}
public void Start()
{
if (Url == null || Url.Length == 0 || ThreadNum < 1 || Info == null)
{
MessageBox.Show("下载参数出错!");
return;
}
try
{
if (Info.IsCompleted)
{
DownloadState = DownloadStateEnum.Completed;
DownloadPercentage = 100F;
DownloadSpeed = 0L;
return;
}
DownloadState = DownloadStateEnum.Downloading;
var response = GetResponse();
if (response == null)
{
DownloadState = DownloadStateEnum.Faulted;
return;
}
CreateDownloadPath(response.ContentLength);
new Thread(ReportDownloadProgress).Start();
var num = 0;
var leftTaskCount = (ThreadNum + _completedThread > Info.DownloadBlockList.Count ? Info.DownloadBlockList.Count : ThreadNum + _completedThread);
for (int i = _completedThread; i < leftTaskCount; i++)
{
var block = Info.DownloadBlockList[i];
if (block.IsCompleted)
{
continue;
}
if (num >= Url.Length)
{
num = 0;
}
var threadItem = new DownloadThread()
{
ID = i,
DownloadUrl = Url[num],
Path = DownloadPath,
Block = block,
Info = Info,
};
threadItem.ThreadCompletedEvent += HttpDownload_ThreadCompletedEvent;
_threads.Add(threadItem);
num++;
}
}
catch (Exception ex)
{
DownloadState = DownloadStateEnum.Faulted;
}
}