private void HandleBatchOfRevisionsIfNecessary()
{
var prevDoneAndHasEnough = _revisionDeleteCommand.Context.AllocatedMemory > Constants.Size.Megabyte && _prevRevisionCommandTask.IsCompleted;
var currentReachedLimit = _revisionDeleteCommand.Context.AllocatedMemory > _enqueueThreshold.GetValue(SizeUnit.Bytes);
if (currentReachedLimit == false && prevDoneAndHasEnough == false)
{
return;
}
var prevCommand = _prevRevisionDeleteCommand;
var prevCommandTask = _prevRevisionCommandTask;
var commandTask = _database.TxMerger.Enqueue(_revisionDeleteCommand);
// we ensure that we first enqueue the command to if we
// fail to do that, we won't be waiting on the previous
// one
_prevRevisionDeleteCommand = _revisionDeleteCommand;
_prevRevisionCommandTask = commandTask;
if (prevCommand != null)
{
using (prevCommand)
{
prevCommandTask.GetAwaiter().GetResult();
Debug.Assert(prevCommand.IsDisposed == false,
"we rely on reusing this context on the next batch, so it has to be disposed here");
}
}
_revisionDeleteCommand = new MergedBatchDeleteRevisionCommand(_database, _log);
}
private void DeleteRevisionsForNonExistingDocuments()
{
if (_missingDocumentsForRevisions == null)
{
return;
}
_revisionDeleteCommand = new MergedBatchDeleteRevisionCommand(_database, _log);
foreach (var docId in _missingDocumentsForRevisions)
{
_revisionDeleteCommand.Add(docId);
HandleBatchOfRevisionsIfNecessary();
}
FinishBatchOfRevisions();
}
private void FinishBatchOfRevisions()
{
if (_prevRevisionDeleteCommand != null)
{
using (_prevRevisionDeleteCommand)
AsyncHelpers.RunSync(() => _prevRevisionCommandTask);
_prevRevisionDeleteCommand = null;
}
if (_revisionDeleteCommand.Ids.Count > 0)
{
using (_revisionDeleteCommand)
AsyncHelpers.RunSync(() => _database.TxMerger.Enqueue(_revisionDeleteCommand));
}
_revisionDeleteCommand = null;
}
