private void TileFetchLoop(object state)
{
try
{
var retries = new Retries(_maxAttempts);
while (_isThreadRunning)
{
if (_tileSource.Schema == null)
{
_waitHandle.Reset();
}
_waitHandle.WaitOne();
Busy = true;
if (_isViewChanged && (_tileSource.Schema != null))
{
var levelId = BruTile.Utilities.GetNearestLevel(_levelManager.TileResolutions, _resolution);
_missingTiles = _strategy.GetTilesWanted(_tileSource.Schema, _extent.ToExtent(), levelId);
_numberTilesNeeded = _missingTiles.Count;
retries.Clear();
_isViewChanged = false;
}
_missingTiles = GetTilesMissing(_missingTiles, _memoryCache, retries);
FetchTiles(retries);
if (_missingTiles.Count == 0)
{
Busy = false;
_waitHandle.Reset();
}
if (_threadCount >= _maxThreads)
{
_waitHandle.Reset();
}
}
}
finally
{
_isThreadRunning = false;
}
}
private void TileFetchLoop(object state)
{
try
{
while (isThreadRunning)
{
if (tileSource.Schema == null)
{
waitHandle.Reset();
}
waitHandle.WaitOne();
if (isViewChanged && (tileSource.Schema != null))
{
int level = BruTile.Utilities.GetNearestLevel(tileSource.Schema.Resolutions, resolution);
missingTiles = strategy.GetTilesWanted(tileSource.Schema, extent.ToExtent(), level);
retries.Clear();
isViewChanged = false;
}
missingTiles = GetTilesMissing(missingTiles, memoryCache, retries, maxRetries);
FetchTiles();
if (missingTiles.Count == 0)
{
waitHandle.Reset();
}
if (threadCount >= ThreadMax)
{
waitHandle.Reset();
}
}
}
finally
{
isThreadRunning = false;
}
}