private void TileFetchLoop()
{
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(_tileSource.Schema.Resolutions, _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
{
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(_tileSource.Schema.Resolutions, _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;
}
}
