private void m_CleanupTimer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
{
try
{
System.Collections.ArrayList deletionKeys = new System.Collections.ArrayList();
//lock(m_ImageTileHash.SyncRoot)
{
foreach (string key in m_ImageTileHash.Keys)
{
ImageTileCacheEntry tile = (ImageTileCacheEntry)m_ImageTileHash[key];
if (System.DateTime.Now.Subtract(tile.LastAccessed) > System.TimeSpan.FromSeconds(30))
{
deletionKeys.Add(key);
}
}
}
foreach (string key in deletionKeys)
{
ImageTileCacheEntry tile = (ImageTileCacheEntry)m_ImageTileHash[key];
m_ImageTileHash.Remove(key);
if (tile.Texture != null && !tile.Texture.Disposed)
{
tile.Texture.Dispose();
}
}
}
catch
{}
}
public void Add(ImageTileCacheEntry newEntry)
{
if (!m_ImageTileHash.Contains(newEntry.Resource))
{
m_ImageTileHash.Add(newEntry.Resource, newEntry);
}
}
public ImageTileCacheEntry this[string key]
{
get
{
ImageTileCacheEntry tile = m_ImageTileHash[key] as ImageTileCacheEntry;
if (tile != null && (tile.Texture == null || tile.Texture.Disposed))
{
tile.Load(m_Device3d);
}
if (tile != null)
{
tile.LastAccessed = System.DateTime.Now;
}
return(tile);
}
}