protected virtual void ReadFile()
{
while (true)
{
var next = Dequeue();
if (next == null)
{
Thread.Sleep(100);
continue;
}
try
{
if (!lastPositionDict.ContainsKey(next))
{
lastPositionDict.Add(next, 0L);
fileStatistics.Add(next, new TailStatistics());
}
StartCallback?.Invoke(initialLoad);
var totalLineCount = 0;
var minLineCount = 0;
var clear = false;
using (var reader = readerFactory.CreateReader(next))
{
var loadLastLines = LoadLastLines();
if (initialLoad && loadLastLines >= 0 && lastPositionDict[next] == 0)
{
totalLineCount = reader.CountLines();
minLineCount = totalLineCount > loadLastLines ? totalLineCount - loadLastLines : 0;
}
var lastPosition = lastPositionDict[next];
if (lastPosition > reader.Length)
{
lastPositionDict[next] = lastPosition = 0L;
fileStatistics[next].Reset();
initialLoad = true;
StartCallback?.Invoke(initialLoad);
clear = true;
}
reader.Seek(lastPosition);
ReadLines(reader, next, minLineCount, clear);
lastPositionDict[next] = reader.Position;
}
FinishCallback?.Invoke(initialLoad, fileStatistics[next]);
initialLoad = false;
}
catch (Exception ex)
{
ExceptionCallback?.Invoke(ex);
}
}
}
public void Start()
{
_IsDone = false;
StartCallback?.Invoke(this, new EventArgs());
if (_IsDone)
{
return;
}
_IsPlaying = true;
synchronizationContext.Post((o) => {
timer1.Enabled = true;
}, null);
}
void Start() => StartCallback?.Invoke();