private async Task sendRequest(byte[] request, YGenericHub.RequestAsyncResult asyncResult, object asyncContext)
{
int pos = 0;
if (_currentRequest != null)
{
await _currentRequest.GetResponse();
}
//Debug.WriteLine(string.Format("{0}:Check last request is sent", Environment.CurrentManagedThreadId));
_currentRequest = new YRequest(request, asyncResult, asyncContext, 10000);
while (pos < request.Length)
{
if (_hid == null)
{
_devState = DevState.IOError;
_currentRequest = null;
throw new YAPI_Exception(YAPI.IO_ERROR, "USB device has been stopped");
}
// construct a HID output report to send to the device
HidOutputReport outReport;
try {
outReport = _hid.CreateOutputReport();
} catch (Exception ex) {
_devState = DevState.IOError;
_currentRequest = null;
throw new YAPI_Exception(YAPI.IO_ERROR, "Error during CreateOutputReport():" + ex.Message);
}
int size = YUSBPkt.imm_FormatTCP(outReport, request, pos, true);
// Send the output report asynchronously
uint u;
try {
u = await _hid.SendOutputReportAsync(outReport);
} catch (Exception ex) {
_devState = DevState.IOError;
_currentRequest = null;
throw new YAPI_Exception(YAPI.IO_ERROR, "Error during SendOutputReportAsync():" + ex.Message);
}
if (u != 65)
{
_devState = DevState.IOError;
_watcher.imm_removeUsableDevice(this);
return;
}
pos += size;
}
//Debug.WriteLine(string.Format("{0}:sent", Environment.CurrentManagedThreadId));
}
public async Task <byte[]> DevRequestSync(string serial, byte[] request, YGenericHub.RequestProgress progress, object context)
{
if (_devState != DevState.StreamReadyReceived)
{
throw new YAPI_Exception(YAPI.IO_ERROR, "Device not ready");
}
await sendRequest(request, null, null);
byte[] res = await _currentRequest.GetResponse();
_currentRequest = null;
return(res);
}