C++ ErrorPtr类代码示例

KLCSC_DECL KLSTD_NORETURN void KLERR_throwLocError(
    const ErrLocAdapt&  locinfo,
	const wchar_t*	    szwModule,
	int				    nId,
	const char*		    szaFile, 
	int				    nLine,
	const wchar_t*	    szwMessage ...)
{
    ErrorPtr pError = CreateError(
                    &locinfo, 
                    szwModule, 
                    nId, 
                    szaFile, 
                    nLine, 
                    szwMessage);
    try
    {
	    va_list lst;
	    va_start(lst, szwMessage);
	    pError->SetMessageParams(lst);
        va_end(lst);
    }
    catch(std::exception& err)
    {
        KLERR_TRACE_UNEXPECTED();
    };
	throw pError.Detach();
};

ErrorPtr JsonRpcComm::sendError(const char *aJsonRpcId, ErrorPtr aErrorToSend)
{
  if (!Error::isOK(aErrorToSend)) {
    return sendError(aJsonRpcId, (uint32_t)aErrorToSend->getErrorCode(), aErrorToSend->getErrorMessage());
  }
  return ErrorPtr();
}

 void initDiscovery()
 {
   // get discovery params
   // - host name
   string s;
   string hostname;
   if (!getStringOption("hostname", hostname)) {
     // none specified, create default
     hostname = string_format("plan44-vdcd-%s", p44VdcHost->getDsUid().getString().c_str());
   }
   // start DS advertising if not disabled
   if (!getOption("nodiscovery")) {
     // start the basic service
     ErrorPtr err = DiscoveryManager::sharedDiscoveryManager().start(
       hostname.c_str()
     );
     if (Error::isOK(err)) {
       // started ok, set discovery params
       int sshPort = 0;
       getIntOption("sshport", sshPort);
       // start discovery manager
       DiscoveryManager::sharedDiscoveryManager().advertiseDS(
         p44VdcHost,
         getOption("noauto"),
         p44VdcHost->webUiPort,
         p44VdcHost->webUiPath,
         sshPort
       );
     }
     else {
       LOG(LOG_ERR, "**** Cannot start discovery manager: %s", err->description().c_str());
     }
   }
 }

ErrorPtr VdcApiRequest::sendError(ErrorPtr aErrorToSend)
{
    if (!Error::isOK(aErrorToSend)) {
        return sendError((uint32_t)aErrorToSend->getErrorCode(), aErrorToSend->getErrorMessage());
    }
    return ErrorPtr();
}

bool FdComm::transmitString(const string &aString)
{
  ErrorPtr err;
  size_t res = transmitBytes(aString.length(), (uint8_t *)aString.c_str(), err);
  if (!Error::isOK(err)) {
    FOCUSLOG("FdComm: Error sending data: %s", err->description().c_str());
  }
  return Error::isOK(err) && res==aString.length(); // ok if no error and all bytes sent
}

void SerialComm::reconnectHandler()
{
  if (reconnecting) {
    ErrorPtr err = establishConnection();
    if (!Error::isOK(err)) {
      LOG(LOG_ERR, "SerialComm: re-connect failed: %s -> retry again later", err->description().c_str());
      reconnecting = true;
      MainLoop::currentMainLoop().executeOnce(boost::bind(&SerialComm::reconnectHandler, this), 15*Second);
    }
    else {
      LOG(LOG_NOTICE, "SerialComm: successfully reconnected to %s", connectionPath.c_str());
    }
  }
}

ErrorPtr VdcApiRequest::sendError(ErrorPtr aErrorToSend)
{
  if (!Error::isOK(aErrorToSend)) {
    VdcApiErrorPtr ve = boost::dynamic_pointer_cast<VdcApiError>(aErrorToSend);
    if (ve) {
      // special VdcApiError, has extra user facing information
      return sendError((uint32_t)aErrorToSend->getErrorCode(), aErrorToSend->getErrorMessage(), ApiValuePtr(), ve->getErrorType(), ve->getUserFacingMessage());
    }
    else {
      return sendError((uint32_t)aErrorToSend->getErrorCode(), aErrorToSend->getErrorMessage());
    }
  }
  return ErrorPtr();
}

void DaliDeviceContainer::testRWResponse(CompletedCB aCompletedCB, DaliAddress aShortAddr, uint8_t aTestByte, bool aNoOrTimeout, uint8_t aResponse, ErrorPtr aError)
{
  if (Error::isOK(aError) && !aNoOrTimeout && aResponse==aTestByte) {
    LOG(LOG_NOTICE,"  - sent 0x%02X, received 0x%02X\n",aTestByte, aResponse, aNoOrTimeout);
    // successfully read back same value from DTR as sent before
    // - check if more tests
    switch (aTestByte) {
      case 0x55: aTestByte = 0xAA; break; // next test: inverse
      case 0xAA: aTestByte = 0x00; break; // next test: all 0
      case 0x00: aTestByte = 0xFF; break; // next test: all 1
      case 0xFF: aTestByte = 0xF0; break; // next test: half / half
      case 0xF0: aTestByte = 0x0F; break; // next test: half / half inverse
      default:
        // all tests done
        aCompletedCB(aError);
        // turn off lights
        daliComm->daliSendDirectPower(DaliBroadcast, 0); // off
        return;
    }
    // launch next test
    testRW(aCompletedCB, aShortAddr, aTestByte);
  }
  else {
    // not ok
    if (Error::isOK(aError) && aNoOrTimeout) aError = ErrorPtr(new DaliCommError(DaliCommErrorMissingData));
    // report
    LOG(LOG_ERR,"DALI self test error: sent 0x%02X, error: %s\n",aTestByte, aError->description().c_str());
    aCompletedCB(aError);
  }
}

void SsdpSearch::socketStatusHandler(ErrorPtr aError)
{
  FOCUSLOG("SSDP socket status: %s", aError ? aError->description().c_str() : "<no error>");
  if (Error::isOK(aError)) {
    FOCUSLOG("### sending UDP M-SEARCH");
    // unregister socket status handler (or we'll get called when connection closes)
    setConnectionStatusHandler(NULL);
    // send search request
    string ssdpSearch = string_format(
      "M-SEARCH * HTTP/1.1\n"
      "HOST: %s:%s\n"
      "MAN: \"ssdp:discover\"\n"
      "MX: %d\n"
      "ST: %s\n",
      SSDP_BROADCAST_ADDR,
      SSDP_PORT,
      SSDP_MX,
      searchTarget.c_str()
    );
    transmitString(ssdpSearch);
    // start timer (wait 1.5 the MX for answers)
    timeoutTicket = MainLoop::currentMainLoop().executeOnce(boost::bind(&SsdpSearch::searchTimedOut, this), SSDP_MX*1500*MilliSecond);
  }
  else {
    // error starting search
    if (searchResultHandler) {
      searchResultHandler(this, aError);
    }
  }
}

 void handleCreateUserAnswer(JsonObjectPtr aJsonResponse, ErrorPtr aError)
 {
   if (Error::isOK(aError)) {
     FOCUSLOG("Received success answer:\n%s", aJsonResponse->json_c_str());
     JsonObjectPtr s = HueComm::getSuccessItem(aJsonResponse);
     // apparently successful, extract user name
     if (s) {
       JsonObjectPtr u = s->get("username");
       if (u) {
         hueComm.userName = u->stringValue();
         hueComm.uuid = currentAuthCandidate->first;
         hueComm.baseURL = currentAuthCandidate->second;
         hueComm.apiReady = true; // can use API now
         FOCUSLOG("hue Bridge %s @ %s: successfully registered as user %s", hueComm.uuid.c_str(), hueComm.baseURL.c_str(), hueComm.userName.c_str());
         // successfully registered with hue bridge, let caller know
         callback(ErrorPtr());
         // done!
         keepAlive.reset(); // will delete object if nobody else keeps it
         return;
       }
     }
   }
   else {
     LOG(LOG_ERR, "hue Bridge: Error creating user: %s", aError->description().c_str());
   }
   // try next
   ++currentAuthCandidate;
   processCurrentAuthCandidate(); // process next, if any
 }

bool SocketComm::connectionMonitorHandler(MLMicroSeconds aCycleStartTime, int aFd, int aPollFlags)
{
  ErrorPtr err;
  if ((aPollFlags & POLLOUT) && isConnecting) {
    // became writable, check status
    err = socketError(aFd);
  }
  else if (aPollFlags & POLLHUP) {
    err = ErrorPtr(new SocketCommError(SocketCommErrorHungUp, "Connection HUP while opening (= connection rejected)"));
  }
  else if (aPollFlags & POLLERR) {
    err = socketError(aFd);
  }
  // now check if successful
  if (Error::isOK(err)) {
    // successfully connected
    connectionOpen = true;
    isConnecting = false;
    currentAddressInfo = NULL; // no more addresses to check
    freeAddressInfo();
    LOG(LOG_DEBUG, "Connection to %s:%s established", hostNameOrAddress.c_str(), serviceOrPortOrSocket.c_str());
    // call handler if defined
    if (connectionStatusHandler) {
      // connection ok
      connectionStatusHandler(this, ErrorPtr());
    }
    // let FdComm base class operate open connection (will install handlers)
    setFd(aFd);
  }
  else {
    // this attempt has failed, try next (if any)
    LOG(LOG_DEBUG, "- Connection attempt failed: %s", err->description().c_str());
    // this will return no error if we have another address to try
    err = connectNextAddress();
    if (err) {
      // no next attempt started, report error
      LOG(LOG_WARNING, "Connection to %s:%s failed: %s", hostNameOrAddress.c_str(), serviceOrPortOrSocket.c_str(), err->description().c_str());
      if (connectionStatusHandler) {
        connectionStatusHandler(this, err);
      }
      freeAddressInfo();
      internalCloseConnection();
    }
  }
  // handled
  return true;
}

void SocketComm::dataExceptionHandler(int aFd, int aPollFlags)
{
  SocketCommPtr keepMyselfAlive(this);
  DBGLOG(LOG_DEBUG, "SocketComm::dataExceptionHandler(fd==%d, pollflags==0x%X)", aFd, aPollFlags);
  if (!isClosing) {
    if (aPollFlags & POLLHUP) {
      // other end has closed connection
      // - report
      if (connectionStatusHandler) {
        // report reason for closing
        connectionStatusHandler(this, ErrorPtr(new SocketCommError(SocketCommErrorHungUp,"Connection closed (HUP)")));
      }
    }
    else if (aPollFlags & POLLIN) {
      // Note: on linux a socket closed server side does not return POLLHUP, but POLLIN with no data
      // alerted for read, but nothing to read any more: assume connection closed
      ErrorPtr err = socketError(aFd);
      if (Error::isOK(err))
        err = ErrorPtr(new SocketCommError(SocketCommErrorHungUp,"Connection closed (POLLIN but no data -> interpreted as HUP)"));
      DBGLOG(LOG_DEBUG, "Connection to %s:%s has POLLIN but no data; error: %s", hostNameOrAddress.c_str(), serviceOrPortOrSocket.c_str(), err->description().c_str());
      // - report
      if (connectionStatusHandler) {
        // report reason for closing
        connectionStatusHandler(this, err);
      }
    }
    else if (aPollFlags & POLLERR) {
      // error
      ErrorPtr err = socketError(aFd);
      LOG(LOG_WARNING, "Connection to %s:%s reported error: %s", hostNameOrAddress.c_str(), serviceOrPortOrSocket.c_str(), err->description().c_str());
      // - report
      if (connectionStatusHandler) {
        // report reason for closing
        connectionStatusHandler(this, err);
      }
    }
    else {
      // NOP
      return;
    }
    // - shut down (Note: if nobody else retains the connection except the server SocketComm, this will delete the connection)
    internalCloseConnection();
  }
}

void Application::terminateAppWith(ErrorPtr aError)
{
  if (Error::isOK(aError)) {
    mainLoop.terminate(EXIT_SUCCESS);
  }
  else {
    LOG(LOG_ERR, "Terminating because of error: %s", aError->description().c_str());
    mainLoop.terminate(EXIT_FAILURE);
  }
}

	KLSTD_NOTHROW KLCSC_DECL void SayFailure(
		int level,
		Error* perror,
		const wchar_t* module,
		const char* file,
		int line) throw()
	{
        int nTraceLevel = 0;
        if(KLSTD::IsTraceStarted(&nTraceLevel) && nTraceLevel >= level)
        {
		    try
            {
			    if(!perror)
                {
                    Trace(
					    level,
					    KLCS_MODULENAME,
					    L"Unknown error was caught in module \"%ls\" in file \"%hs\" on line %d\n",
					    module,
					    file,
					    line);
                }
			    else
                {
                    ErrorPtr pError = perror;
                    for( size_t i = 0; pError; ++i )
                    {
                        KLSTD::klwstr_t wstrLoc;
                        KLERR_LocFormatErrorString(pError, wstrLoc.outref());
                        Trace(
					        level,
					        KLCS_MODULENAME,
					        L"#%u, Error was caught in module \"%ls\" in file \"%hs\" on line %d."
					        L" Error params: (%u/0x%X (\"%ls\"), \"%ls\", \"%hs\", %d)\n\tError loc: '%ls'.\n",
                            (i+1),
					        module,
					        file,
					        line,
					        pError->GetId(),
					        pError->GetErrorSubcode(),
					        pError->GetMsg(),
					        pError->GetModuleName(),
					        pError->GetFileName(),
					        pError->GetLine(),
                            wstrLoc.c_str());
                        ;
                        KLERR::ErrorPtr pOldErr = pError; 
                        pError = NULL;
                        pOldErr->GetError2()->GetPreviousError(&pError);
                    };
                };
            }
            catch(std::exception& err)
            {
                KLERR_TRACE_UNEXPECTED();
            };
        };
	};

void EnoceanDeviceContainer::handleRadioPacket(Esp3PacketPtr aEsp3PacketPtr, ErrorPtr aError)
{
  if (aError) {
    LOG(LOG_INFO, "Radio packet error: %s\n", aError->description().c_str());
    return;
  }
  // check learning mode
  if (learningMode) {
    // no learn/unlearn actions detected so far
    // - check if we know that device address already. If so, it is a learn-out
    bool learnIn = enoceanDevices.find(aEsp3PacketPtr->radioSender())==enoceanDevices.end();
    // now add/remove the device (if the action is a valid learn/unlearn)
    // detect implicit (RPS) learn in only with sufficient radio strength (or explicit override of that check),
    // explicit ones are always recognized
    if (aEsp3PacketPtr->eepHasTeachInfo(disableProximityCheck ? 0 : MIN_LEARN_DBM, false)) {
      LOG(LOG_NOTICE, "Received EnOcean learn packet while learn mode enabled: %s\n", aEsp3PacketPtr->description().c_str());
      // This is actually a valid learn action
      ErrorPtr learnStatus;
      if (learnIn) {
        // new device learned in, add logical devices for it
        int numNewDevices = EnoceanDevice::createDevicesFromEEP(this, aEsp3PacketPtr->radioSender(), aEsp3PacketPtr->eepProfile(), aEsp3PacketPtr->eepManufacturer());
        if (numNewDevices>0) {
          // successfully learned at least one device
          // - update learn status (device learned)
          getDeviceContainer().reportLearnEvent(true, ErrorPtr());
        }
      }
      else {
        // device learned out, un-pair all logical dS devices it has represented
        // but keep dS level config in case it is reconnected
        unpairDevicesByAddress(aEsp3PacketPtr->radioSender(), false);
        getDeviceContainer().reportLearnEvent(false, ErrorPtr());
      }
      // - only allow one learn action (to prevent learning out device when
      //   button is released or other repetition of radio packet)
      learningMode = false;
    } // learn action
  }
  else {
    // not learning mode, dispatch packet to all devices known for that address
    for (EnoceanDeviceMap::iterator pos = enoceanDevices.lower_bound(aEsp3PacketPtr->radioSender()); pos!=enoceanDevices.upper_bound(aEsp3PacketPtr->radioSender()); ++pos) {
      if (aEsp3PacketPtr->eepHasTeachInfo(MIN_LEARN_DBM, false) && aEsp3PacketPtr->eepRorg()!=rorg_RPS) {
        // learning packet in non-learn mode -> report as non-regular user action, may be attempt to identify a device
        // Note: RPS devices are excluded because for these all telegrams are regular regular user actions. signalDeviceUserAction() will be called
        //   from button
        if (getDeviceContainer().signalDeviceUserAction(*(pos->second), false)) {
          // consumed for device identification purposes, suppress further processing
          break;
        }
      }
      // handle regularily (might be RPS switch which does not have separate learn/action packets
      pos->second->handleRadioPacket(aEsp3PacketPtr);
    }
  }
}