/// <summary>
/// Initializes new instance of <see cref="StorageFileAppender"/> class.
/// </summary>
/// <param name="configuration">The configuration parameters for binary storage components</param>
/// <param name="streamFactory"><see cref="IStreamFactory"/> object used to create file streams</param>
/// <param name="binaryStorageIndex">reference to binary storage index structure</param>
/// <exception cref="ArgumentNullException">factory is null</exception>
/// <exception cref="IOException">storage file could not be opened</exception>
public StorageFileAppender(StorageConfiguration configuration, IStreamFactory streamFactory, IBinaryStorageIndex binaryStorageIndex)
{
this.configuration = configuration.ThrowIfNull(nameof(configuration));
this.binaryStorageIndex = binaryStorageIndex.ThrowIfNull(nameof(binaryStorageIndex));
this.streamFactory = streamFactory.ThrowIfNull(nameof(streamFactory));
buffer = streamFactory.CreateStreamedIOBuffer();
fileStream = streamFactory.CreateStorageAppendingStream();
ShrinkStorageFile();
pendingCounter = 0;
processedCounter = 0;
waitingList = new ConcurrentQueue <Tuple <long, ManualResetEvent> >();
cancellationOnDispose = new CancellationTokenSource();
processingThread = new Thread(DoBufferProcessing);
processingThread.Start();
writeLock = new object();
}