public bool Start(string Source, string Destination, bool WaitCompletion)
{
if (Source == null || Destination == null ||
!File.Exists(Source))
{
return(false);
}
source = Source;
destination = Destination;
SizeCopied = 0;
SourceInfo = new FileInfo(source);
if (File.Exists(destination))
{
c_SysIO.DeleteFile(destination);
}
CircBuf.AbortWait(false);
CircBuf.FlushBuffer();
CopyRunning = true;
DestinationComplited.Reset();
SourceComplited.Reset();
StartSource.Set();
StartDestination.Set();
if (WaitCompletion)
{
WaitResult();
}
CopyRunning = false;
return(true);
}
void DestinationWrite_DoWork(object sender, DoWorkEventArgs e)
{
byte[] TempData = new byte[MaxNumBytesPerTime];
while (!DestinationWrite.CancellationPending)
{
StartDestination.WaitOne();
long SizeToCopy = SourceInfo.Length;
uint SizeReadyToCopy = 0;
FileStream DestinationFile = null;
try
{
DestinationFile = new FileStream(destination, FileMode.CreateNew, FileAccess.Write, FileShare.None, MaxNumBytesPerTime, FileOptions.SequentialScan);
while (SizeToCopy > 0 && CopyRunning)
{
long SizeWait = Math.Min(SizeToCopy, (CircBuf.p_BufferSize - MaxNumBytesPerTime));
while ((SizeReadyToCopy = CircBuf.GetFIFOCounterWithWait()) < SizeWait && CopyRunning)
{
CircBuf.WaitWrite();
}
do
{
SizeReadyToCopy = Math.Min(SizeReadyToCopy, MaxNumBytesPerTime);
if (CircBuf.ReadData(ref TempData, 0, SizeReadyToCopy))
{
DestinationFile.Write(TempData, 0, (int)SizeReadyToCopy);
SizeCopied += SizeReadyToCopy;
SizeToCopy -= SizeReadyToCopy;
}
} while ((SizeReadyToCopy = CircBuf.GetFIFOCounter()) > MaxNumBytesPerTime && CopyRunning);
}
}
catch (Exception ex)
{
ErrorWorkProc.ErrorProcess(ex);
}
finally
{
if (DestinationFile != null)
{
DestinationFile.Close();
}
}
// обновляем аттрибуты
try
{
DestinationInfo = new FileInfo(destination);
DestinationInfo.Attributes = SourceInfo.Attributes;
DestinationInfo.CreationTime = SourceInfo.CreationTime;
DestinationInfo.LastAccessTime = SourceInfo.LastAccessTime;
DestinationInfo.LastWriteTime = SourceInfo.LastWriteTime;
}
catch (Exception ex)
{
ErrorWorkProc.ErrorProcess(ex);
}
finally
{
CopyRunning = false;
// если ожидается чтение
CircBuf.AbortWait(true);
DestinationComplited.Set();
}
}
}