protected HIDReport ReadData(int timeout)
{
var buffer = new byte[] { };
var status = HIDReport.ReadStatus.NoDataRead;
int error = 0;
var success = false;
if (InputReportByteLength > 0)
{
uint bytesRead = 0;
buffer = CreateInputBuffer();
if (timeout > 0)
{
var security = new Native.SECURITY_ATTRIBUTES();
var overlapped = new NativeOverlapped();
var overlapTimeout = timeout;
security.lpSecurityDescriptor = IntPtr.Zero;
security.bInheritHandle = true;
security.nLength = Marshal.SizeOf(security);
overlapped.OffsetLow = 0;
overlapped.OffsetHigh = 0;
overlapped.EventHandle = Native.CreateEvent(ref security, Convert.ToInt32(false), Convert.ToInt32(true), string.Empty);
try
{
success = Native.ReadFile(ReadAsyncHandle, buffer, (uint)buffer.Length, out bytesRead, ref overlapped);
// UnityEngine.Debug.Log("Read happend " + success + " " + bytesRead);
error = Marshal.GetLastWin32Error();
if (!success && (error == Native.ERROR_IO_PENDING || bytesRead < buffer.Length))
{
UnityEngine.Debug.LogWarning("Wait reading...");
var result = Native.WaitForSingleObject(overlapped.EventHandle, overlapTimeout);
switch (result)
{
case Native.WAIT_OBJECT_0: status = HIDReport.ReadStatus.Success; break;
case Native.WAIT_TIMEOUT:
status = HIDReport.ReadStatus.WaitTimedOut;
UnityEngine.Debug.Log("ReadData_WAIT_TIMEOUT");
// buffer = new byte[] { };
break;
case Native.WAIT_FAILED:
status = HIDReport.ReadStatus.WaitFail;
UnityEngine.Debug.Log("ReadData_WAIT_FAILED");
// buffer = new byte[] { };
break;
case Native.WAIT_ABANDONED:
status = HIDReport.ReadStatus.Success;
UnityEngine.Debug.Log("ReadData_WAIT_ABANDONED" + result);
// buffer = new byte[] { };
break;
default:
status = HIDReport.ReadStatus.NoDataRead;
UnityEngine.Debug.Log("ReadData Default" + result);
break;
}
}
else
{
if (error > 0)
{
if (error == 1167)
{
IsConnected = false;
status = HIDReport.ReadStatus.NotConnected;
}
else
{
status = HIDReport.ReadStatus.ReadError;
UnityEngine.Debug.LogWarning("Error during Read Data:" + error);
}
}
else
{
status = HIDReport.ReadStatus.Success;
}
}
}
catch { status = HIDReport.ReadStatus.ReadError; }
finally { CloseDeviceIO(overlapped.EventHandle); }
}
else
{
try
{
var overlapped = new NativeOverlapped();
success = Native.ReadFile(ReadHandle, buffer, (uint)buffer.Length, out bytesRead, ref overlapped);
error = Marshal.GetLastWin32Error();
status = HIDReport.ReadStatus.Success;
if (error > 0)
{
if (error == 1167)
{
IsConnected = false;
status = HIDReport.ReadStatus.NotConnected;
}
else
{
status = HIDReport.ReadStatus.ReadError;
UnityEngine.Debug.LogWarning("Error during Read Data_" + error);
}
}
}
catch { status = HIDReport.ReadStatus.ReadError; }
}
}
//TODO add syncronization
__lastHIDReport.Data = buffer;
__lastHIDReport.index = this.index;
__lastHIDReport.Status = status;
return(__lastHIDReport);// new HIDReport(this.index, buffer, status);
}
private bool WriteData(byte[] data, int timeout)
{
var buffer = CreateOutputBuffer();
uint bytesWritten = 0;
int error = 0;
Array.Copy(data, 0, buffer, 0, Math.Min(data.Length, OutputReportByteLength));
if (timeout > 0)
{
var security = new Native.SECURITY_ATTRIBUTES();
var overlapped = new NativeOverlapped();
// var overlapTimeout = timeout <= 0 ? Native.WAIT_INFINITE : timeout;
var overlapTimeout = timeout;
security.lpSecurityDescriptor = IntPtr.Zero;
security.bInheritHandle = true;
security.nLength = Marshal.SizeOf(security);
overlapped.OffsetLow = 0;
overlapped.OffsetHigh = 0;
overlapped.EventHandle = Native.CreateEvent(ref security, Convert.ToInt32(false), Convert.ToInt32(true), "");
bool success;
success = Native.WriteFile(WriteAsyncHandle, buffer, (uint)buffer.Length, out bytesWritten, ref overlapped);
UnityEngine.Debug.Log("WriteFile happend " + success + " " + bytesWritten);
error = Marshal.GetLastWin32Error();
// UnityEngine.Debug.LogError(Marshal.GetLastWin32Error());
if (!success && error == Native.ERROR_IO_PENDING)
{
var result = Native.WaitForSingleObject(overlapped.EventHandle, overlapTimeout);
//TODO clean overlapped
// System.Threading.Overlapped.Unpack(overlapped);
switch (result)
{
case Native.WAIT_OBJECT_0:
return(true);
case Native.WAIT_TIMEOUT:
UnityEngine.Debug.Log("WriteData WAIT_TIMEOUT");
return(false);
case Native.WAIT_FAILED:
UnityEngine.Debug.Log("WriteData WAIT_FAILED");
return(false);
default:
return(false);
}
}
if (error > 0)
{
UnityEngine.Debug.LogWarning("Error during Write Data " + error);
//return false;
}
return(success);
}
else
{
try
{
var overlapped = new NativeOverlapped();
bool success;
success = Native.WriteFile(WriteHandle, buffer, (uint)buffer.Length, out bytesWritten, ref overlapped);
if (!success)
{
UnityEngine.Debug.LogWarning(Marshal.GetLastWin32Error().ToString());
}
return(success);
}
catch (Exception ex) {
UnityEngine.Debug.LogException(ex);
return(false);
}
}
}