/// <summary>
/// Modify the configuration of the window cache.
/// <para />
/// The new configuration is applied immediately. If the new limits are
/// smaller than what what is currently cached, older entries will be purged
/// as soon as possible to allow the cache to meet the new limit.
/// </summary>
/// <param name="cfg">
/// The new window cache configuration.
/// </param>
public static void reconfigure(WindowCacheConfig cfg)
{
var newCache = new WindowCache(cfg);
WindowCache oldCache = _cache;
if (oldCache != null)
{
oldCache.removeAll();
}
_cache = newCache;
UnpackedObjectCache.Reconfigure(cfg);
}
public static ByteWindow get(PackFile pack, long offset)
{
WindowCache c = _cache;
ByteWindow r = c.getOrLoad(pack, c.ToStart(offset));
if (c != _cache)
{
// The cache was reconfigured while we were using the old one
// to load this window. The window is still valid, but our
// cache may think its still live. Ensure the window is removed
// from the old cache so resources can be released.
//
c.removeAll();
}
return(r);
}
