C++ HandleStatus函数代码示例

void EnableNetworkManager()
{
	try
	{
		HandleStatus(RunCmdRedirect(START_NETWORK_MANAGER_COMMAND),ERROR_MSG_ENABLING_NETWORK_MANAGER);
		HandleStatus(RunCmdRedirect(DISABLE_FIREWALL),ERROR_DISABLING_FW);
	}
	catch (CException & error)
	{
		SLogger::getInstance().Log(error.what());
		SLogger::getInstance().Log(__PRETTY_FUNCTION__);
		throw;
	}
}

/* Handle an event, passing it to widgets until they return a status */
void 
GUI:: HandleEvent(const SDL_Event *event)
{
	int i;
	GUI_status status;

	switch (event->type) {
		/* SDL_QUIT events quit the GUI */
		case SDL_QUIT:
			status = GUI_QUIT;
			break;

		/* Keyboard and mouse events go to widgets */
		case SDL_KEYDOWN:
		case SDL_KEYUP:
		case SDL_MOUSEMOTION:
		case SDL_MOUSEBUTTONDOWN:
		case SDL_MOUSEBUTTONUP:
			/* Go through widgets, topmost first */
			status = GUI_PASS;
			for (i=numwidgets-1; (i>=0)&&(status==GUI_PASS); --i) {
				if ( widgets[i]->Status() == WIDGET_VISIBLE ) {
					status = widgets[i]->HandleEvent(event);
				}
			}
			break;

		/* Ignore unhandled events */
		default:
			status = GUI_PASS;
			break;
	}
	HandleStatus(status);
}

bool nifpga::Close(uint32_t attribute) {
	bool status = false;
	if (sessionOpen) {
		if (sessionRunning) status = Abort();
		status = HandleStatus(NiFpga_Close(sessionHandle,attribute));
		if (status) sessionOpen = false;
	}
	return status;
}

/**
 * Calling System to disabled the Network Manager service in order for the emulation
 * to determine IP's subnet masks and more.
 *
 * If the Manager couldn't be stopped an exception will be throw
 * and the emulation will be terminated.
 */
void DisableNetworkManager()
{
	try
	{
		HandleStatus(RunCmdRedirect(STOP_NETWORK_MANAGER_COMMAND,false),ERROR_MSG_DISABLING_NETWORK_MANAGER);

		HandleStatus(RunCmdRedirect(STOP_IP_FORWARDING),ERROR_MSG_DISABLING_IP_FORWARDING);

		HandleStatus(RunCmdRedirect(STOP_ICMP_RESPONSE),ERROR_MSG_DISABLING_ICMP_RESPONSE);

		HandleStatus(RunCmdRedirect(ENABLE_FIREWALL),ERROR_FW);

		HandleStatus(RunCmdRedirect(STOP_ALL_INCOMING_PACKETS),ERROR_DISABLING_PACKETS_TRAFFIC);

		HandleStatus(RunCmdRedirect(STOP_ALL_OUTGOING_PACKETS),ERROR_DISABLING_PACKETS_TRAFFIC);

	}
	catch (CException & error)
	{
		SLogger::getInstance().Log(error.what());
		SLogger::getInstance().Log(__PRETTY_FUNCTION__);
		throw;
	}
}

bool nifpga::GetPeerToPeerFifoEndpoint(uint32_t fifo, uint32_t* endpoint) {
	if (sessionOpen && sessionRunning) return HandleStatus(NiFpga_GetPeerToPeerFifoEndpoint(sessionHandle, fifo, endpoint));
	return false;
}

bool nifpga::AcquireFifoWriteElementsU64(uint32_t fifo, uint64_t** elements, size_t elementsRequested, uint32_t timeout, size_t* elementsAcquired, size_t* elementsRemaining) {
	if (sessionOpen && sessionRunning) return HandleStatus(NiFpga_AcquireFifoWriteElementsU64(sessionHandle, fifo, elements, elementsRequested, timeout, elementsAcquired, elementsRemaining));
	return false;
}

bool nifpga::ConfigureFifo(uint32_t fifo, size_t requestedDepth, size_t* actualDepth) {
	if (sessionOpen) return HandleStatus(NiFpga_ConfigureFifo2(sessionHandle, fifo, requestedDepth, actualDepth));
	return false;
}

bool nifpga::AcknowledgeIrqs(uint32_t irqs) {
	if (sessionOpen && sessionRunning) return HandleStatus(NiFpga_AcknowledgeIrqs(sessionHandle, irqs));
	return false;
}

bool nifpga::Abort() {
	bool status = false;
	if (sessionOpen && sessionRunning) status = HandleStatus(NiFpga_Abort(sessionHandle));
	if (status) sessionRunning = false;
	return status;
}

bool nifpga::Run(uint32_t attribute) {
	bool status = false;
	if (sessionOpen && !sessionRunning) status = HandleStatus(NiFpga_Run(sessionHandle, attribute));
	if (status) sessionRunning = true;
	return status;
}

bool nifpga::Open(char* bitfile, char* signature, char* resource, uint32_t attribute) {
	bool status = false;
	if (driverInitialized && !sessionOpen) status = HandleStatus(NiFpga_Open(bitfile, signature, resource, attribute, &sessionHandle));
	if (status) sessionOpen = true;
	return status;
}

bool nifpga::Finalize() {
	bool status = false;
	if (driverInitialized) status = HandleStatus(NiFpga_Finalize());
	if (status) driverInitialized = false;
	return status;
}

bool nifpga::Initialize() {
	bool status = false;
	if (!driverInitialized) status = HandleStatus(NiFpga_Initialize());
	if (status) driverInitialized = true;
	return status;
}

bool nifpga::UnreserveIrqContext(NiFpga_IrqContext context) {
	if (sessionOpen && sessionRunning) return HandleStatus(NiFpga_UnreserveIrqContext(sessionHandle, context));
	return false;
}

bool nifpga::WaitOnIrqs(NiFpga_IrqContext context, uint32_t irqs, uint32_t timeout, uint32_t* irqsAsserted, NiFpga_Bool* timedOut) {
	if (sessionOpen && sessionRunning) return HandleStatus(NiFpga_WaitOnIrqs(sessionHandle, context, irqs, timeout, irqsAsserted, timedOut));
	return false;
}