void ILogSourcesManagerInternal.OnSourceStatsChanged(ILogSource logSource, LogProviderStatsFlag flags)
{
if (OnLogSourceStatsChanged != null)
{
OnLogSourceStatsChanged(logSource, new LogSourceStatsEventArgs()
{
flags = flags
});
}
}
void ILogProviderHost.OnStatisticsChanged(LogProviderStatsFlag flags)
{
}
bool UpdateAvailableTime(bool incrementalMode)
{
bool itIsFirstUpdate = firstUpdateFlag;
firstUpdateFlag = false;
UpdateBoundsStatus status = reader.UpdateAvailableBounds(incrementalMode);
if (status == UpdateBoundsStatus.NothingUpdated && incrementalMode)
{
return(false);
}
if (status == UpdateBoundsStatus.OldMessagesAreInvalid)
{
incrementalMode = false;
}
// Get new boundary values into temporary variables
IMessage newFirst, newLast;
PositionedMessagesUtils.GetBoundaryMessages(reader, null, out newFirst, out newLast);
if (firstMessage != null)
{
if (newFirst == null || MessageTimestamp.Compare(newFirst.Time, firstMessage.Time) != 0)
{
// The first message we've just read differs from the cached one.
// This means that the log was overwritten. Fall to non-incremental mode.
incrementalMode = false;
}
}
if (!incrementalMode)
{
if (!itIsFirstUpdate)
{
// Reset everything that has been loaded so far
InvalidateEverythingThatHasBeenLoaded();
}
firstMessage = null;
}
// Try to get the dates range for new bounday messages
DateRange newAvailTime = GetAvailableDateRangeHelper(newFirst, newLast);
firstMessage = newFirst;
// Getting here means that the boundaries changed.
// Fire the notfication.
var positionsRange = new FileRange.Range(reader.BeginPosition, reader.EndPosition);
if (!incrementalMode)
{
readerContentsEtag = reader.GetContentsEtag();
}
int contentsEtag =
readerContentsEtag
^ positionsRange.Begin.GetHashCode()
^ positionsRange.End.GetHashCode();
StatsTransaction(stats =>
{
stats.AvailableTime = newAvailTime;
LogProviderStatsFlag f = LogProviderStatsFlag.AvailableTime;
if (incrementalMode)
{
f |= LogProviderStatsFlag.AvailableTimeUpdatedIncrementallyFlag;
}
stats.TotalBytes = reader.SizeInBytes;
f |= LogProviderStatsFlag.BytesCount;
stats.PositionsRange = positionsRange;
f |= LogProviderStatsFlag.PositionsRange;
stats.PositionsRangeUpdatesCount++;
if (stats.ContentsEtag == null || contentsEtag != stats.ContentsEtag.Value)
{
stats.ContentsEtag = contentsEtag;
f |= LogProviderStatsFlag.ContentsEtag;
}
return(f);
});
return(true);
}
void ILogSourcesManagerInternal.OnSourceStatsChanged(
ILogSource logSource, LogProviderStats value, LogProviderStats oldValue, LogProviderStatsFlag flags)
{
OnLogSourceStatsChanged?.Invoke(logSource, new LogSourceStatsEventArgs(value, oldValue, flags));
}
void ILogProviderHost.OnStatisticsChanged(
LogProviderStats value, LogProviderStats oldValue, LogProviderStatsFlag flags)
{
}
void ILogProviderHost.OnStatisticsChanged(LogProviderStats value,
LogProviderStats oldValue, LogProviderStatsFlag flags)
{
owner.OnSourceStatsChanged(this, value, oldValue, flags);
}
public void OnStatisticsChanged(LogProviderStatsFlag flags)
{
owner.OnSourceStatsChanged(this, flags);
}
public LogSourceStatsEventArgs(LogProviderStats value, LogProviderStats oldValue, LogProviderStatsFlag flags)
{
this.Value = value;
this.OldValue = oldValue;
this.Flags = flags;
}
