/// <summary>
/// Creates a prestage writer.
/// </summary>
/// <param name="settings">The settings to use for this prebuffer writer</param>
/// <param name="onRollover">delegate to call when a file is done with this stage.</param>
public PrebufferWriter(PrebufferWriterSettings settings, Action <PrebufferRolloverArgs <TKey, TValue> > onRollover)
: base(MessageClass.Framework)
{
if (settings is null)
{
throw new ArgumentNullException("settings");
}
if (onRollover is null)
{
throw new ArgumentNullException("onRollover");
}
m_settings = settings.CloneReadonly();
m_settings.Validate();
m_performanceLog = Log.RegisterEvent(MessageLevel.Info, MessageFlags.PerformanceIssue, "Queue is full", 0, MessageRate.PerSecond(1), 1);
m_currentlyRollingOverFullQueue = false;
m_latestTransactionId.Value = 0;
m_syncRoot = new object();
m_activeQueue = new SortedPointBuffer <TKey, TValue>(m_settings.MaximumPointCount, true);
m_processingQueue = new SortedPointBuffer <TKey, TValue>(m_settings.MaximumPointCount, true);
m_activeQueue.IsReadingMode = false;
m_processingQueue.IsReadingMode = false;
m_onRollover = onRollover;
m_waitForEmptyActiveQueue = new SafeManualResetEvent(false);
m_rolloverTask = new ScheduledTask(ThreadingMode.DedicatedForeground, ThreadPriority.AboveNormal);
m_rolloverTask.Running += m_rolloverTask_Running;
m_rolloverTask.UnhandledException += OnProcessException;
}
public override void Validate()
{
if (IsEnabled)
{
m_prebufferWriter.Validate();
m_firstStageWriter.Validate();
foreach (var stage in m_stagingRollovers)
{
stage.Validate();
}
}
}
