public bool GetDeviceList(out List <DeviceId> deviceIds)
{
deviceIds = new List <DeviceId>();
uint bytesReturned;
bool result =
devIO.DeviceIoControl(IOCTL_BUSDOG_GET_DEVICE_LIST,
IntPtr.Zero,
0,
outBuffer,
outBufferSize,
out bytesReturned);
if (result)
{
int index = 0;
while (bytesReturned >= index + Marshal.SizeOf(typeof(BUSDOG_DEVICE_ID)))
{
BUSDOG_DEVICE_ID devId =
(BUSDOG_DEVICE_ID)
Marshal.PtrToStructure(new IntPtr(outBuffer.ToInt64() + index),
typeof(BUSDOG_DEVICE_ID));
index += Marshal.SizeOf(typeof(BUSDOG_DEVICE_ID));
string hardwareId =
Marshal.PtrToStringUni(new IntPtr(outBuffer.ToInt64() + index),
devId.PhysicalDeviceObjectNameSize.ToInt32() / 2);
index += devId.PhysicalDeviceObjectNameSize.ToInt32();
deviceIds.Add(new DeviceId(devId.DeviceId, Convert.ToBoolean(devId.Enabled), hardwareId));
}
}
else
{
System.Diagnostics.Debug.WriteLine(Marshal.GetLastWin32Error());
}
return(result);
}
void TraceBufRead()
{
try
{
DeviceIOCTL devIO = new DeviceIOCTL(busdogPath, true);
while (true)
{
uint bytesReturned;
// send the get trace buffer command to the driver
bool result =
devIO.DeviceIoControl(
IOCTL_BUSDOG_GET_BUFFER,
IntPtr.Zero,
0,
outBuffer,
outBufferSize,
out bytesReturned);
if (!result)
{
int err = Marshal.GetLastWin32Error();
// check if the I/O request is pending
if (err == ERROR_IO_PENDING)
{
while (true)
{
// keep checking if the I/O request has been fufilled (abort after 500ms so our thread can be killed)
if (devIO.WaitForOverlappedIo(500, out bytesReturned))
{
result = true;
break;
}
}
}
else
System.Diagnostics.Debug.WriteLine(err);
}
if (result)
{
// we have a result so now we convert the buffer into a trace list and call the event
if (FilterTraceArrived != null)
FilterTraceArrived(
this,
new FilterTraceArrivedEventArgs(GetTraceList(outBuffer, outBufferSize, bytesReturned)));
// stall trace stream to allow main thread to have a turn now and then
Thread.Sleep(10);
}
}
}
catch (ThreadAbortException)
{
// We will cancel any pending IO on this thread before exiting
devIO.CancelIo();
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
}
}
void TraceBufRead()
{
try
{
DeviceIOCTL devIO = new DeviceIOCTL(busdogPath, true);
while (true)
{
uint bytesReturned;
// send the get trace buffer command to the driver
bool result =
devIO.DeviceIoControl(
IOCTL_BUSDOG_GET_BUFFER,
IntPtr.Zero,
0,
outBuffer,
outBufferSize,
out bytesReturned);
if (!result)
{
int err = Marshal.GetLastWin32Error();
// check if the I/O request is pending
if (err == ERROR_IO_PENDING)
{
while (true)
{
// keep checking if the I/O request has been fufilled (abort after 500ms so our thread can be killed)
if (devIO.WaitForOverlappedIo(500, out bytesReturned))
{
result = true;
break;
}
}
}
else
{
System.Diagnostics.Debug.WriteLine(err);
}
}
if (result)
{
// we have a result so now we convert the buffer into a trace list and call the event
if (FilterTraceArrived != null)
{
FilterTraceArrived(
this,
new FilterTraceArrivedEventArgs(GetTraceList(outBuffer, outBufferSize, bytesReturned)));
}
// stall trace stream to allow main thread to have a turn now and then
Thread.Sleep(10);
}
}
}
catch (ThreadAbortException)
{
// We will cancel any pending IO on this thread before exiting
devIO.CancelIo();
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
}
}