C++ NotifyError函数代码示例

void DataGenerator::_export_raw_data(GUINT32 num_bytes,
                                     const QString &fn)
{
    bool success = false;
    try{
        CREATE_AND_OPEN_OUTPUT_FILE(fn);

        class rng_data_source : public GUtil::IInput{
            GUtil::CryptoPP::RNG &m_rng;
        public:
            rng_data_source(GUtil::CryptoPP::RNG &r) :m_rng(r) {}
            virtual GUINT32 ReadBytes(byte *b, GUINT32 len, GUINT32 to_read){
                to_read = Min(len, to_read);
                m_rng.Fill(b, to_read);
                return to_read;
            }
        } rng_source(m_rng);

        rng_source.Pump(&outfile, num_bytes, DEFAULT_CHUNK_SIZE,
            [&](int p) -> bool{
                emit ProgressUpdated(p);
                return m_cancel;
            });
        success = true;
    }
    catch(const Exception<> &ex){
        emit NotifyError(std::shared_ptr<std::exception>(
                             static_cast<std::exception*>((Exception<> *)ex.Clone()))
                         );
    }

    if(success)
        emit NotifyInfo(tr("Raw data exported"));
}

void
nsGeolocationRequest::SendLocation(nsIDOMGeoPosition* aPosition)
{
  if (mCleared || !mAllowed)
    return;

  // we should not pass null back to the DOM.
  if (!aPosition) {
    NotifyError(nsIDOMGeoPositionError::POSITION_UNAVAILABLE);
    return;
  }

  // Ensure that the proper context is on the stack (bug 452762)
  nsCOMPtr<nsIJSContextStack> stack(do_GetService("@mozilla.org/js/xpc/ContextStack;1"));
  if (!stack || NS_FAILED(stack->Push(nsnull)))
    return; // silently fail
  
  mCallback->HandleEvent(aPosition);

  // remove the stack
  JSContext* cx;
  stack->Pop(&cx);

  mHasSentData = PR_TRUE;
}

bool CMySqlDatabase::DbCrud( QString& strSql, QString& strError )
{
    //
    // Unicode(UCS) =====> MBCS
    //

    if ( bExpiration ) {
        return false;
    }

    QByteArray byteSql = pCodec->fromUnicode( strSql );

    int nSize = byteSql.count( );
    const char* pSql = byteSql.data( );

    int nRet = mysql_real_query( &hConnect, pSql, nSize );
    GetErrorMsg( nRet, strError, true, strSql );

    //mysql_num_rows();

    bool bRet = ( 0 == nRet );
    if ( !bRet ) {
        strError = "访问数据库失败，可能是网络故障，请检查网络！\n" + strError;
        //CCommonFunction::MsgBox( NULL, "提示", strError, QMessageBox::Information );
        //CStartupProcess::GetFrame( )->UpdateInfo( strError );
        emit NotifyError( strError );
    }

    return bRet;
}

NS_IMETHODIMP ItemTask::Run() {
	int ret = EWS_FAIL;
	char * err_msg = NULL;
	void * remoteResponse = NULL;
	
	if (EWS_FAIL == NotifyBegin(this)) {
		return NS_OK;
	}

	NS_FAILED_WARN(m_ItemsCallback->RemoteOperation(&remoteResponse));
	m_ItemsCallback->GetRemoteResult(&ret);
	m_ItemsCallback->GetRemoteMessage(&err_msg);
		
	NotifyError(this, ret, err_msg);

	nsCOMPtr<nsIRunnable> resultrunnable =
			new ItemDoneTask(ret,
			                 m_ItemsCallback,
			                 remoteResponse,
			                 m_pEwsTaskCallbacks,
			                 this);
		
	NS_DispatchToMainThread(resultrunnable);

	return NS_OK;
}

NS_IMETHODIMP
SmsRequest::NotifyThreadListFailed(int32_t aError)
{
  if (mParent) {
    return SendMessageReply(MessageReply(ReplyThreadListFail(aError)));
  }
  return NotifyError(aError);
}

	NS_IMETHOD Run() {
		nsresult rv;
		nsCOMPtr<IMailEwsMsgFolder> ewsFolder(do_QueryInterface(m_Folder, &rv));
    
		if (NS_FAILED(rv)) {
			NotifyError(m_Runnable, (int)rv, "unable to get ews folder");
		} else if (m_Result == EWS_SUCCESS) {
			rv = ewsFolder->ClientRename(m_NewName, m_MsgWindow);

			if (NS_FAILED(rv)) {
				NotifyError(m_Runnable, (int)rv, "unable to rename folder");
			}
		}

		NotifyEnd(m_Runnable, m_Result);
		return NS_OK;
	}

void View_Cancha::initialize(SDL_Renderer * gRenderer)
{
    if( !texturaCancha.loadFromFile( "Images/canchafubol.jpg",gRenderer) )
    {
        NotifyError("No se pudo cargar la Imagen de la cancha, se usara una imagen por defecto", "View_Jugador");
        texturaCancha.loadFromFile("Images/pelota.png",gRenderer);
    }
}

bool CError::NotifyError( LPSTR szFilename, int iLine, int iColumn, DWORD dwStrResourceDescription)
{
	WCHAR szBuffer[ MAX_LANG_ERROR_STR];

	if( 0 >= LoadStringW( NULL, dwStrResourceDescription, szBuffer, sizeof(szBuffer)))
		return FALSE;

	return NotifyError( szFilename, iLine, iColumn, szBuffer);
}

//  Open an audio/video file.
void OnFileOpen(HWND hwnd)
{
    IFileOpenDialog *pFileOpen = NULL;
    IShellItem *pItem = NULL;
    PWSTR pszFilePath = NULL;

    // Create the FileOpenDialog object.
    HRESULT hr = CoCreateInstance(__uuidof(FileOpenDialog), NULL, 
        CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&pFileOpen));
    if (FAILED(hr))
    {
        goto done;
    }

    // Show the Open dialog box.
    hr = pFileOpen->Show(NULL);
    if (hr == HRESULT_FROM_WIN32(ERROR_CANCELLED))
    {
        // The user canceled the dialog. Do not treat as an error.
        hr = S_OK;
        goto done;
    }
    else if (FAILED(hr))
    {
        goto done;
    }

    // Get the file name from the dialog box.
    hr = pFileOpen->GetResult(&pItem);
    if (FAILED(hr))
    {
        goto done;
    }

    hr = pItem->GetDisplayName(SIGDN_FILESYSPATH, &pszFilePath);
    if (FAILED(hr))
    {
        goto done;
    }

    // Display the file name to the user.
    hr = g_pPlayer->OpenURL(pszFilePath);
    if (SUCCEEDED(hr))
    {
        UpdateUI(hwnd, OpenPending);
    }

done:
    if (FAILED(hr))
    {
        NotifyError(hwnd, L"Could not open the file.", hr);
        UpdateUI(hwnd, Closed);
    }
    CoTaskMemFree(pszFilePath);
    SafeRelease(&pItem);
    SafeRelease(&pFileOpen);
}

// Handler for Media Session events.
void OnPlayerEvent(HWND hwnd, WPARAM pUnkPtr)
{
    HRESULT hr = g_pPlayer->HandleEvent(pUnkPtr);
    if (FAILED(hr))
    {
        NotifyError(hwnd, L"An error occurred.", hr);
    }
    UpdateUI(hwnd, g_pPlayer->GetState());
}

HRESULT CPreview::OnReadSample(
    HRESULT hrStatus,
    DWORD /* dwStreamIndex */,
    DWORD /* dwStreamFlags */,
    LONGLONG /* llTimestamp */,
    IMFSample *pSample      // Can be NULL
    )
{
    HRESULT hr = S_OK;
    IMFMediaBuffer *pBuffer = NULL;

    EnterCriticalSection(&m_critsec);

    if (FAILED(hrStatus))
    {
        hr = hrStatus;
    }

    if (SUCCEEDED(hr))
    {
        if (pSample)
        {
            // Get the video frame buffer from the sample.

            hr = pSample->GetBufferByIndex(0, &pBuffer);

            // Draw the frame.

            if (SUCCEEDED(hr))
            {
                hr = m_draw.DrawFrame(pBuffer);
            }
        }
    }

    // Request the next frame.
    if (SUCCEEDED(hr))
    {
        hr = m_pReader->ReadSample(
            (DWORD)MF_SOURCE_READER_FIRST_VIDEO_STREAM,
            0,
            NULL,   // actual
            NULL,   // flags
            NULL,   // timestamp
            NULL    // sample
            );
    }

    if (FAILED(hr))
    {
        NotifyError(hr);
    }
    SafeRelease(&pBuffer);

    LeaveCriticalSection(&m_critsec);
    return hr;
}

NS_IMETHODIMP
MobileMessageCallback::NotifyGetSmscAddress(const nsAString& aSmscAddress)
{
  AutoJSAPI jsapi;
  if (NS_WARN_IF(!jsapi.Init(mDOMRequest->GetOwner()))) {
    return NotifyError(nsIMobileMessageCallback::INTERNAL_ERROR);
  }
  JSContext* cx = jsapi.cx();
  JSString* smsc = JS_NewUCStringCopyN(cx, aSmscAddress.BeginReading(),
                                       aSmscAddress.Length());

  if (!smsc) {
    return NotifyError(nsIMobileMessageCallback::INTERNAL_ERROR);
  }

  JS::Rooted<JS::Value> val(cx, JS::StringValue(smsc));
  return NotifySuccess(val);
}

// Append a string as a token to the token vector
int CExpression::AppendString(const char* str, bool editorMode, bool singleQuotes)
{
	Token Tok;
	int i;

	for (i = 1; ; i++) {

		// End quote and not a "" double quote escape
		if (str[i] == '"') {
			// Double ""
			if (!singleQuotes && str[i+1] == '"') {
				Tok.str += '"';
				
				if(editorMode)
					Tok.str += '"';

				i++;		// Skip
			}
			else
				// Terminate
				break;
		}
		else if (singleQuotes && str[i] == '\'')
		{
			break;
		}

		// Null found inside string
		else if (str[i] == NULL) {

			// Report an error (string not closed)
			NotifyError("Syntax error: Unclosed string quote");
			i--;
			break;	// exit
		}
		else
			Tok.str += str[i];

	}//for

	// Append this token
	if (singleQuotes)
		Tok.t = T_VARIABLENAME;
	else {
		Tok.str.Replace("$n", "\n");
		Tok.str.Replace("$q", "\"");
		Tok.str.Replace("$t", "\t");
		Tok.t = T_STRINGLITERAL;
	}

	Tok.length = Tok.str.GetLength() + 2;	// Don't forget the quotes
	toks.push_back(Tok);

	return i;
}

NS_IMETHODIMP
SmsRequestManager::NotifyReadMessageListFailed(PRInt32 aRequestId, PRInt32 aError)
{
  SmsRequest* request = GetRequest(aRequestId);

  nsCOMPtr<nsIDOMMozSmsCursor> cursor = request->GetCursor();
  if (cursor) {
    static_cast<SmsCursor*>(cursor.get())->Disconnect();
  }

  return NotifyError(aRequestId, aError);
}

bool wxLuaDebugTarget::Run()
{
    wxCHECK_MSG(m_pThread == NULL, false, wxT("wxLuaDebugTarget::Run already called"));

    // Assume something is going to go wrong
    m_fErrorsSeen = true;

    m_pThread = new LuaThread(this);
    // Start the thread
    if ((m_pThread != NULL) &&
        (m_pThread->Create() == wxTHREAD_NO_ERROR) &&
        (m_pThread->Run()    == wxTHREAD_NO_ERROR))
    {
        // Wait for the connection to the server to complete
        if (!IsConnected())
        {
            wxMessageBox(wxT("Unable to connect to server"), wxT("wxLua client"), wxOK | wxCENTRE, NULL);
        }
        else
        {
            // OK, now we can start running.
            m_runCondition.Wait();

            m_fRunning    = true;
            m_fErrorsSeen = false;

            size_t idx, count = m_bufferArray.GetCount();
            for (idx = 0; idx < count; ++idx)
            {
                wxString luaBuffer = m_bufferArray.Item(idx);
                wxString bufFilename = luaBuffer.BeforeFirst(wxT('\0'));
                wxString buf =  luaBuffer.AfterFirst(wxT('\0'));

                wxLuaCharBuffer char_buf(buf);
                int rc = m_wxlState.LuaDoBuffer(char_buf, char_buf.Length(),
                                            wx2lua(bufFilename));

                m_fErrorsSeen = (rc != 0);
                if (m_fErrorsSeen)
                {
                    NotifyError(wxlua_LUA_ERR_msg(rc));
                    break;
                }
            }

            m_bufferArray.Clear();
        }
    }

    return !m_fErrorsSeen;
}