public StorageEnvironment(StorageEnvironmentOptions options)
{
try
{
_options = options;
_dataPager = options.DataPager;
_freeSpaceHandling = new FreeSpaceHandling();
_headerAccessor = new HeaderAccessor(this);
var isNew = _headerAccessor.Initialize();
_scratchBufferPool = new ScratchBufferPool(this);
_journal = new WriteAheadJournal(this);
if (isNew)
CreateNewDatabase();
else // existing db, let us load it
LoadExistingDatabase();
Writer = new TransactionMergingWriter(this, _cancellationTokenSource.Token);
if (_options.ManualFlushing == false)
_flushingTask = FlushWritesToDataFileAsync();
}
catch (Exception)
{
Dispose();
throw;
}
}
public StorageEnvironment(StorageEnvironmentOptions options,string debugJournalName)
: this(options)
{
DebugJournal = new DebugJournal(debugJournalName,this);
if(Writer != null)
Writer.Dispose();
Writer = new TransactionMergingWriter(this, _cancellationTokenSource.Token, DebugJournal);
}
public OutstandingWrite(WriteBatch batch, TransactionMergingWriter transactionMergingWriter)
{
_transactionMergingWriter = transactionMergingWriter;
Batch = batch;
Size = batch.Size();
if (transactionMergingWriter._eventsBuffer.TryDequeue(out _completed) == false)
{
_completed = new ManualResetEventSlim();
}
_completed.Reset();
}
public OutstandingWrite(WriteBatch batch, TransactionMergingWriter transactionMergingWriter)
{
_batch = batch;
_transactionMergingWriter = transactionMergingWriter;
_operations = CreateOperations(batch);
Size = batch.Size();
if (transactionMergingWriter._eventsBuffer.TryDequeue(out _completed) == false)
_completed = new ManualResetEventSlim();
_completed.Reset();
}
public unsafe StorageEnvironment(StorageEnvironmentOptions options)
{
try
{
TemporaryPage = new TemporaryPage();
_options = options;
_dataPager = options.DataPager;
_freeSpaceHandling = new FreeSpaceHandling(this);
_sliceComparer = NativeMethods.memcmp;
_headerAccessor = new HeaderAccessor(this);
var isNew = _headerAccessor.Initialize();
_scratchBufferPool = new ScratchBufferPool(this);
_journal = new WriteAheadJournal(this);
if (isNew)
CreateNewDatabase();
else // existing db, let us load it
LoadExistingDatabase();
State.FreeSpaceRoot.Name = Constants.FreeSpaceTreeName;
State.Root.Name = Constants.RootTreeName;
Writer = new TransactionMergingWriter(this, _cancellationTokenSource.Token);
if (_options.ManualFlushing == false)
_flushingTask = FlushWritesToDataFileAsync();
}
catch (Exception)
{
Dispose();
throw;
}
}
