protected void ProcessBlock(object i)
{
int n = (int)i;
try
{
while (InWork)
{
while (InWork && !ProcessingReady[n].WaitOne(100))
{
continue;
}
lock (InLocker)
{
if (InputData == null || InputData[n] == null || !InWork)
{
break;
}
}
SpecifiedProcessBlock(n);
lock (ProgressLocker) CurrentPosition += InputData[n].Length;
lock (InLocker) InputData[n] = null;
Processed[n].Set();
}
}
catch (Exception ex)
{
if (!Displayed)
{
Displayed = true;
OnFatalException?.Invoke(ex);
}
}
Processed[n].Set();
}
protected void FireFatalExceptionEvent(Exception exception)
{
OnFatalException?.Invoke(this, new SqlDependencyFatalExceptionEventArgs(exception));
}
protected void PoolManage()
{
try
{
while (InWork)
{
while (IsReading && !InputReady.WaitOne(100))
{
continue;
}
if (!InWork)
{
break;
}
lock (InLocker)
{
while (InputQueue.Count == 0)
{
Monitor.Wait(InLocker);
}
InputData = InputQueue.Dequeue();
}
if (InputData == null)
{
lock (OutLocker)
{
OutputQueue.Enqueue(null);
Monitor.PulseAll(OutLocker);
}
break;
}
ResetIn.Release();
lock (OutLocker) OutputData = new byte[ThreadCount][];
for (int i = 0; i < ThreadCount; i++)
{
ProcessingReady[i].Set();
}
while (InWork && !WaitHandle.WaitAll(Processed, 100))
{
continue;
}
lock (OutLocker)
{
if (!InWork)
{
OutputData = null;
}
OutputQueue.Enqueue(OutputData);
Monitor.PulseAll(OutLocker);
}
}
}
catch (Exception ex)
{
Displayed = true;
OnFatalException?.Invoke(ex);
}
}
protected void Writer()
{
byte[][] Block = null;
FileStream OutputStream = null;
try
{
OutputStream = new FileStream(OutputPath, FileMode.Append, FileAccess.Write, FileShare.ReadWrite);
while (InWork)
{
lock (OutLocker)
{
while (OutputQueue.Count == 0)
{
Monitor.Wait(OutLocker);
}
Block = OutputQueue.Dequeue();
}
if (Block == null)
{
InWork = false;
break;
}
for (int n = 0; n < ThreadCount; n++)
{
if (!InWork)
{
return;
}
try
{
if (Block[n] == null)
{
InWork = false;
break;
}
OutputStream.Write(Block[n], 0, Block[n].Length);
UpdateProgress();
}
catch (IOException ex)
{
Displayed = true;
if (Display.ShowMessage(ex.ToString() + "\r\n\r\nTry Again? (y/n): ", true))
{
Displayed = false;
n--;
continue;
}
else
{
OnFatalException?.Invoke(null);
return;
}
}
catch (Exception ex)
{
Displayed = true;
OnFatalException?.Invoke(ex);
return;
}
}
Block = null;
}
}
catch (Exception ex)
{
Displayed = true;
OnFatalException?.Invoke(ex);
}
finally
{
OutputStream?.Close();
}
}
protected void Reader()
{
byte[][] Block = new byte[ThreadCount][];
try
{
InputStream = new FileStream(InputPath, FileMode.Open, FileAccess.Read, FileShare.Read);
FileSize = InputStream.Length;
while (InputStream.Position < InputStream.Length)
{
while (InWork && !ResetIn.WaitOne(100))
{
continue;
}
if (!InWork)
{
break;
}
for (int n = 0; n < ThreadCount; n++)
{
try
{
Block[n] = ReadBlock(n);
}
catch (Exception ex)
{
Displayed = true;
OnFatalException?.Invoke(ex);
return;
}
}
lock (InLocker)
{
InputQueue.Enqueue(Block);
Block = new byte[ThreadCount][];
InputReady.Set();
}
}
lock (InLocker)
{
InputQueue.Enqueue(null);
Monitor.PulseAll(InLocker);
InputReady.Set();
}
}
catch (Exception ex)
{
Displayed = true;
OnFatalException?.Invoke(ex);
}
finally
{
InputStream?.Close();
}
IsReading = false;
}
