public MemoryMapPager(string file, FlushMode flushMode = FlushMode.Full)
{
_flushMode = flushMode;
var fileInfo = new FileInfo(file);
var hasData = fileInfo.Exists == false || fileInfo.Length == 0;
_fileStream = fileInfo.Open(FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.Read);
if (hasData)
{
NumberOfAllocatedPages = 0;
}
else
{
NumberOfAllocatedPages = fileInfo.Length / PageSize;
PagerState.Release();
PagerState = CreateNewPagerState();
}
}
public override void Dispose()
{
base.Dispose();
PagerState.Release();
_base = null;
}
