public int WriteData(byte[] wData)
{
if (outputReportSize == 0)
{
return(402);
}
if (false == connected)
{
return(406);
}
if (wData.Length < outputReportSize)
{
return(403);
}
if (writeRing == null)
{
return(405);
}
if (errCodeW != 0)
{
return(errCodeW);
}
if (writeRing.putIfCan(wData) == 3)
{
System.Threading.Thread.Sleep(1);
return(404);
}
FileIOApiDeclarations.SetEvent(writeEvent);
return(0);
}
public void CloseInterface()
{
if ((holdErrorThreadOpen) || (holdDataThreadOpen))
{
return;
}
// Shut down event thread
if (dataThreadActive)
{
dataThreadActive = false;
FileIOApiDeclarations.SetEvent(readEvent);
int n = 0;
if (dataThreadHandle != null)
{
while (dataThreadHandle.IsAlive)
{
Thread.Sleep(10);
n++;
if (n == 10)
{
dataThreadHandle.Abort(); break;
}
}
dataThreadHandle = null;
}
}
// Shut down read thread
if (readThreadActive)
{
readThreadActive = false;
// Wait for thread to exit
if (readThreadHandle != null)
{
int n = 0;
while (readThreadHandle.IsAlive)
{
Thread.Sleep(10);
n++;
if (n == 10)
{
readThreadHandle.Abort(); break;
}
}
readThreadHandle = null;
}
}
if (writeThreadActive)
{
writeThreadActive = false;
FileIOApiDeclarations.SetEvent(writeEvent);
if (writeThreadHandle != null)
{
int n = 0;
while (writeThreadHandle.IsAlive)
{
Thread.Sleep(10);
n++;
if (n == 10)
{
writeThreadHandle.Abort(); break;
}
}
writeThreadHandle = null;
}
}
if (errorThreadActive)
{
errorThreadActive = false;
if (errorThreadHandle != null)
{
int n = 0;
while (errorThreadHandle.IsAlive)
{
Thread.Sleep(10);
n++;
if (n == 10)
{
errorThreadHandle.Abort(); break;
}
}
errorThreadHandle = null;
}
}
if (writeRing != null)
{
writeRing = null;
}
if (readRing != null)
{
readRing = null;
}
// if (readEvent != null) {readEvent = null;}
// if (writeEvent != null) { writeEvent = null; }
if ((0x00FF != pid && 0x00FE != pid && 0x00FD != pid && 0x00FC != pid && 0x00FB != pid) || version > 272)
{
// it's not an old VEC foot pedal (those hang when closing the handle)
if (readFileHandle != null) // 9/1/09 - readFileHandle != null ||added by Onur to avoid null reference exception
{
if (!readFileHandle.IsInvalid)
{
readFileHandle.Close();
}
}
if (writeFileHandle != null)
{
if (!writeFileHandle.IsInvalid)
{
writeFileHandle.Close();
}
}
}
connected = false;
}
protected void ReadThread()
{
// FileIOApiDeclarations.SECURITY_ATTRIBUTES securityAttrUnused = new FileIOApiDeclarations.SECURITY_ATTRIBUTES();
IntPtr overlapEvent = FileIOApiDeclarations.CreateEvent(ref securityAttrUnused, 1, 0, "");
FileIOApiDeclarations.OVERLAPPED overlapped = new FileIOApiDeclarations.OVERLAPPED();
overlapped.Offset = 0; //IntPtr.Zero;
overlapped.OffsetHigh = 0;
overlapped.hEvent = (Int32)overlapEvent;
overlapped.Internal = 0; //IntPtr.Zero;
overlapped.InternalHigh = 0; //IntPtr.Zero;
if (inputReportSize == 0)
{
errCodeR = 302;
errCodeRE = 302;
return;
}
errCodeR = 0;
errCodeRE = 0;
byte[] buffer = new byte[inputReportSize];
GCHandle gch = GCHandle.Alloc(buffer, GCHandleType.Pinned); //onur March 2009 - pinning is reuired
while (readThreadActive)
{
int dataRead = 0;
if (0 == FileIOApiDeclarations.ReadFile(readFileHandle, gch.AddrOfPinnedObject(), inputReportSize, ref dataRead, ref overlapped)) //ref readFileBuffer[0]
{
int result = System.Runtime.InteropServices.Marshal.GetLastWin32Error();
if (result != FileIOApiDeclarations.ERROR_IO_PENDING) //|| result == FileIOApiDeclarations.ERROR_DEVICE_NOT_CONNECTED)
{
errCodeR = 307;
errCodeRE = 307;
goto EXit;
}
else //if (result != .ERROR_IO_PENDING)
{
// gch.Free(); //onur
while (readThreadActive)
{
result = FileIOApiDeclarations.WaitForSingleObject(overlapEvent, 50);
if (FileIOApiDeclarations.WAIT_OBJECT_0 == result)
{
if (0 == FileIOApiDeclarations.GetOverlappedResult(readFileHandle, ref overlapped, ref dataRead, 0))
{
result = System.Runtime.InteropServices.Marshal.GetLastWin32Error();
if (result == FileIOApiDeclarations.ERROR_INVALID_HANDLE || result == FileIOApiDeclarations.ERROR_DEVICE_NOT_CONNECTED)
{
errCodeR = 307;
errCodeRE = 307;
goto EXit;
}
}
// buffer[0] = 89;
goto ReadCompleted;
}
} //while
} //if (result != .ERROR_IO_PENDING)...else
continue;
}
//buffer[0] = 90;
ReadCompleted:
if (dataRead != inputReportSize)
{
errCodeR = 310; errCodeRE = 310; goto EXit;
}
if (suppressDuplicateReports)
{
int r = readRing.putIfDiff(buffer);
if (r == 0)
{
FileIOApiDeclarations.SetEvent(readEvent);
}
}
else
{
readRing.put(buffer);
FileIOApiDeclarations.SetEvent(readEvent);
}
} //while
EXit:
FileIOApiDeclarations.CancelIo(readFileHandle);
readFileHandle = null;
gch.Free(); //onur
return;
}