public ScratchBufferPool(StorageEnvironment env)
{
_logger = LoggingSource.Instance.GetLogger <ScratchBufferPool>(Path.GetFileName(env.ToString()));
_disposeOnceRunner = new DisposeOnce <ExceptionRetry>(() =>
{
if (_pagerStatesAllScratchesCache != null)
{
foreach (var pagerState in _pagerStatesAllScratchesCache)
{
pagerState.Value.Release();
}
}
foreach (var scratch in _scratchBuffers)
{
scratch.Value.File.Dispose();
_scratchSpaceMonitor.Decrease(scratch.Value.File.NumberOfAllocatedPages * Constants.Storage.PageSize);
}
_scratchBuffers.Clear();
while (_recycleArea.First != null)
{
var recycledScratch = _recycleArea.First.Value;
if (recycledScratch.File.IsDisposed == false)
{
recycledScratch.File.Dispose();
_scratchSpaceMonitor.Decrease(recycledScratch.File.NumberOfAllocatedPages * Constants.Storage.PageSize);
}
_recycleArea.RemoveFirst();
}
_current = null;
});
_env = env;
_options = env.Options;
_scratchSpaceMonitor = env.Options.ScratchSpaceUsage;
_current = NextFile(_options.InitialLogFileSize, null);
UpdateCacheForPagerStatesOfAllScratches();
LowMemoryNotification.Instance.RegisterLowMemoryHandler(this);
}