private void SetMaxDownloads(int max)
{
if (max < 0)
{
throw new ArgumentOutOfRangeException(Catalog.GetString
("Maximum number of concurrent downloads cannot be less than 0."));
}
int delta = 0;
int lastRunning = -1;
DownloadInfo dif = null;
lock (download_queue.SyncRoot)
{
lock (tsm.SyncRoot)
{
if (tsm.MaximumDownloads == max)
{
return;
}
tsm.MaximumDownloads = max;
if (tsm.CurrentDownloads > tsm.MaximumDownloads)
{
delta = tsm.CurrentDownloads - tsm.MaximumDownloads;
}
lastRunning = download_queue.IndexOfLastRunning();
for (int i = 0; i < delta && lastRunning >= 0; ++i, --lastRunning)
{
dif = download_queue [lastRunning];
lock (dif.SyncRoot)
{
if (dif.State == DownloadState.Running)
{
dif.State = DownloadState.Queued;
}
}
}
}
}
}
