/// <summary>
/// Initializes a new instance of the VersionManager class.
/// </summary>
/// <param name="versionProvider">The version provider (LoggingReplicator)</param>
internal VersionManager(IVersionProvider versionProvider)
{
this.versionListLock = new ReaderWriterLockSlim();
this.versionProvider = versionProvider;
this.readerRemovalNotifications = new Dictionary <long, TaskCompletionSource <long> >();
this.registeredNotifications = new ConcurrentDictionary <NotificationKey, byte>();
this.versionList = new List <long>();
this.lastDispatchingBarrier = null;
}
protected LogRecord(LogRecordType recordType, ulong recordPosition, long lsn)
{
this.recordType = recordType;
this.lsn = new LogicalSequenceNumber(lsn);
this.psn = PhysicalSequenceNumber.InvalidPsn;
this.previousPhysicalRecordOffset = InvalidPhysicalRecordOffset;
this.recordPosition = recordPosition;
this.recordLength = InvalidRecordLength;
this.previousPhysicalRecord = PhysicalLogRecord.InvalidPhysicalLogRecord;
this.flushedTask = new CompletionTask();
this.appliedTask = new CompletionTask();
this.processedTask = new CompletionTask();
this.ApproximateSizeOnDisk = 0;
}
protected LogRecord(LogRecordType recordType)
{
this.recordType = recordType;
this.lsn = LogicalSequenceNumber.InvalidLsn;
this.psn = PhysicalSequenceNumber.InvalidPsn;
this.previousPhysicalRecordOffset = InvalidPhysicalRecordOffset;
this.recordLength = InvalidRecordLength;
this.recordPosition = InvalidRecordPosition;
this.previousPhysicalRecord = PhysicalLogRecord.InvalidPhysicalLogRecord;
this.flushedTask = new CompletionTask();
this.appliedTask = new CompletionTask();
this.processedTask = new CompletionTask();
this.UpdateApproximateDiskSize();
}
protected LogRecord()
{
this.recordType = LogRecordType.Invalid;
this.lsn = LogicalSequenceNumber.InvalidLsn;
this.psn = PhysicalSequenceNumber.InvalidPsn;
this.previousPhysicalRecordOffset = InvalidPhysicalRecordOffset;
this.recordPosition = InvalidRecordPosition;
this.recordLength = InvalidRecordLength;
this.previousPhysicalRecord = null;
this.flushedTask = this.invalidCompletionTask;
this.appliedTask = this.invalidCompletionTask;
this.processedTask = this.invalidCompletionTask;
this.ApproximateSizeOnDisk = 0;
}
public void UpdateDispatchingBarrierTask(CompletionTask barrierTask)
{
this.versionManager.UpdateDispatchingBarrierTask(barrierTask);
}
public void UpdateDispatchingBarrierTask(CompletionTask barrierTask)
{
this.lastDispatchingBarrier = barrierTask;
}