private void Download(object obj)
{
try
{
DownloadThreadArgs args = obj as DownloadThreadArgs;
List <DownloadLevelTile> threadDownloadLevelTiles = args.DownloadLevelTiles;
int retryCount = 0;
for (int i = 0; i < threadDownloadLevelTiles.Count; ++i)
{
GPoint p = threadDownloadLevelTiles[i].TilePoint;
int zoom = threadDownloadLevelTiles[i].TileZoom;
try
{
if (CacheTiles(zoom, p, provider))
{
retryCount = 0;
lock (locker)
{
++downloadSize;
if (downloadSize == allTileSize)
{
IsComplete = true;
}
}
}
else
{
if (++retryCount <= retry)
{
--i;
continue;
}
else
{
retryCount = 0;
downloadFailedTiles.Enqueue(threadDownloadLevelTiles[i]);
}
}
}
catch (Exception exception)
{
log.Error(exception);
}
}
log.Info("One thread download complete.");
}
catch (Exception ex)
{
log.Error(ex);
}
}
public void StartDownload(TileDownloaderArgs tileDownloaderArgs)
{
GMaps.Instance.UseMemoryCache = false;
GMaps.Instance.CacheOnIdleRead = false;
isComplete = false;
downloadSize = 0;
provider = tileDownloaderArgs.MapProvider;
List <DownloadLevelTile> downloadTiles = tileDownloaderArgs.DownloadTiles;
allTileSize = downloadTiles.Count;
int singelNum = (int)(allTileSize / threadNum);
int remainder = (int)(allTileSize % threadNum);
if (PrefetchTileStart != null)
{
PrefetchTileStart(this, new TileDownloadEventArgs(0));
}
if (singelNum == 0)
{
threadNum = 1;
}
for (int i = 0; i < threadNum; i++)
{
int startIndex = i * singelNum;
int endIndex = startIndex + singelNum - 1;
if (remainder != 0 && (threadNum - 1) == i)
{
endIndex = allTileSize - 1;
}
DownloadThreadArgs args = new DownloadThreadArgs(downloadTiles.GetRange(startIndex, endIndex - startIndex + 1));
thread[i] = new Thread(new ParameterizedThreadStart(Download));
thread[i].Start(args);
}
updateUiTimer.Start();
downloadFailedThread.Start();
}