/// <summary>
/// This method must be called before read/write operation to avoid dirty reads.
/// It's occurs when my cache contains pages that was changed in another process
/// </summary>
public bool AvoidDirtyRead()
{
var cache = (HeaderPage)_cache.GetPage(0);
if (cache == null)
{
return(false);
}
// read change direct from disk
var change = _disk.GetChangeID();
// if changeID was changed, file was changed by another process - clear all cache
if (cache.ChangeID != change)
{
_cache.Clear();
return(true);
}
return(false);
}
