C++ EventLogger类代码示例

void Cmvmi::execEVENT_REP(Signal* signal) 
{
  //-----------------------------------------------------------------------
  // This message is sent to report any types of events in NDB.
  // Based on the log level they will be either ignored or
  // reported. Currently they are printed, but they will be
  // transferred to the management server for further distribution
  // to the graphical management interface.
  //-----------------------------------------------------------------------
  EventReport * const eventReport = (EventReport *)&signal->theData[0]; 
  Ndb_logevent_type eventType = eventReport->getEventType();
  Uint32 nodeId= eventReport->getNodeId();
  if (nodeId == 0)
  {
    nodeId= refToNode(signal->getSendersBlockRef());
    eventReport->setNodeId(nodeId);
  }

  jamEntry();
  
  /**
   * If entry is not found
   */
  Uint32 threshold;
  LogLevel::EventCategory eventCategory;
  Logger::LoggerLevel severity;  
  EventLoggerBase::EventTextFunction textF;
  if (EventLoggerBase::event_lookup(eventType,eventCategory,threshold,severity,textF))
    return;
  
  SubscriberPtr ptr;
  for(subscribers.first(ptr); ptr.i != RNIL; subscribers.next(ptr)){
    if(ptr.p->logLevel.getLogLevel(eventCategory) < threshold){
      continue;
    }
    
    sendSignal(ptr.p->blockRef, GSN_EVENT_REP, signal, signal->length(), JBB);
  }
  
  if(clogLevel.getLogLevel(eventCategory) < threshold){
    return;
  }

  // Print the event info
  g_eventLogger.log(eventReport->getEventType(), signal->theData);

  return;
}//execEVENT_REP()

void
TCP_Transporter::setSocketOptions(){
  int sockOptKeepAlive  = 1;

  if (setsockopt(theSocket, SOL_SOCKET, SO_RCVBUF,
                 (char*)&sockOptRcvBufSize, sizeof(sockOptRcvBufSize)) < 0) {
#ifdef DEBUG_TRANSPORTER
    g_eventLogger.error("The setsockopt SO_RCVBUF error code = %d", InetErrno);
#endif
  }//if
  
  if (setsockopt(theSocket, SOL_SOCKET, SO_SNDBUF,
                 (char*)&sockOptSndBufSize, sizeof(sockOptSndBufSize)) < 0) {
#ifdef DEBUG_TRANSPORTER
    g_eventLogger.error("The setsockopt SO_SNDBUF error code = %d", InetErrno);
#endif
  }//if
  
  if (setsockopt(theSocket, SOL_SOCKET, SO_KEEPALIVE,
                 (char*)&sockOptKeepAlive, sizeof(sockOptKeepAlive)) < 0) {
    ndbout_c("The setsockopt SO_KEEPALIVE error code = %d", InetErrno);
  }//if

  //-----------------------------------------------
  // Set the TCP_NODELAY option so also small packets are sent
  // as soon as possible
  //-----------------------------------------------
  if (setsockopt(theSocket, IPPROTO_TCP, TCP_NODELAY, 
                 (char*)&sockOptNodelay, sizeof(sockOptNodelay)) < 0) {
#ifdef DEBUG_TRANSPORTER
    g_eventLogger.error("The setsockopt TCP_NODELAY error code = %d", InetErrno);
#endif
  }//if
}

int
TCP_Transporter::doReceive() {
  // Select-function must return the socket for read
  // before this method is called
  // It reads the external TCP/IP interface once
  Uint32 size = receiveBuffer.sizeOfBuffer - receiveBuffer.sizeOfData;
  if(size > 0){
    const int nBytesRead = recv(theSocket, 
				receiveBuffer.insertPtr, 
				size < maxReceiveSize ? size : maxReceiveSize, 
				0);
    
    if (nBytesRead > 0) {
      receiveBuffer.sizeOfData += nBytesRead;
      receiveBuffer.insertPtr  += nBytesRead;
      
      if(receiveBuffer.sizeOfData > receiveBuffer.sizeOfBuffer){
#ifdef DEBUG_TRANSPORTER
	g_eventLogger.error("receiveBuffer.sizeOfData(%d) > receiveBuffer.sizeOfBuffer(%d)",
		 receiveBuffer.sizeOfData, receiveBuffer.sizeOfBuffer);
	g_eventLogger.error("nBytesRead = %d", nBytesRead);
#endif
	g_eventLogger.error("receiveBuffer.sizeOfData(%d) > receiveBuffer.sizeOfBuffer(%d)",
		 receiveBuffer.sizeOfData, receiveBuffer.sizeOfBuffer);
	report_error(TE_INVALID_MESSAGE_LENGTH);
	return 0;
      }
      
      receiveCount ++;
      receiveSize  += nBytesRead;
      
      if(receiveCount == reportFreq){
	reportReceiveLen(get_callback_obj(), remoteNodeId, receiveCount, receiveSize);
	receiveCount = 0;
	receiveSize  = 0;
      }
      return nBytesRead;
    } else {
#if defined DEBUG_TRANSPORTER
      g_eventLogger.error("Receive Failure(disconnect==%d) to node = %d nBytesSent = %d "
	       "errno = %d strerror = %s",
	       DISCONNECT_ERRNO(InetErrno, nBytesRead),
	       remoteNodeId, nBytesRead, InetErrno, 
	       (char*)ndbstrerror(InetErrno));
#endif   
      if(DISCONNECT_ERRNO(InetErrno, nBytesRead)){
	// The remote node has closed down
	doDisconnect();
	report_disconnect(InetErrno);
      } 
    }
    return nBytesRead;
  } else {
    return 0;
  }
}

void Cmvmi::execSTTOR(Signal* signal)
{
  Uint32 theStartPhase  = signal->theData[1];

  jamEntry();
  if (theStartPhase == 1){
    jam();

    if(m_ctx.m_config.lockPagesInMainMemory() == 1)
    {
      int res = NdbMem_MemLockAll(0);
      if(res != 0){
	g_eventLogger.warning("Failed to memlock pages");
	warningEvent("Failed to memlock pages");
      }
    }
    
    sendSTTORRY(signal);
    return;
  } else if (theStartPhase == 3) {
    jam();
    globalData.activateSendPacked = 1;
    sendSTTORRY(signal);
  } else if (theStartPhase == 8){
    /*---------------------------------------------------*/
    /* Open com to API + REP nodes                       */
    /*---------------------------------------------------*/
    signal->theData[0] = 0; // no answer
    signal->theData[1] = 0; // no id
    signal->theData[2] = NodeInfo::API;
    execOPEN_COMREQ(signal);
    globalData.theStartLevel = NodeState::SL_STARTED;
    sendSTTORRY(signal);
  }
}

void
TransporterRegistry::startReceiving()
{
  DBUG_ENTER("TransporterRegistry::startReceiving");

#ifdef NDB_SHM_TRANSPORTER
  m_shm_own_pid = getpid();
  if (g_ndb_shm_signum)
  {
    DBUG_PRINT("info",("Install signal handler for signum %d",
		       g_ndb_shm_signum));
    struct sigaction sa;
    NdbThread_set_shm_sigmask(FALSE);
    sigemptyset(&sa.sa_mask);
    sa.sa_handler = shm_sig_handler;
    sa.sa_flags = 0;
    int ret;
    while((ret = sigaction(g_ndb_shm_signum, &sa, 0)) == -1 && errno == EINTR);
    if(ret != 0)
    {
      DBUG_PRINT("error",("Install failed"));
      g_eventLogger.error("Failed to install signal handler for"
			  " SHM transporter, signum %d, errno: %d (%s)",
			  g_ndb_shm_signum, errno, strerror(errno));
    }
  }
#endif // NDB_SHM_TRANSPORTER
  DBUG_VOID_RETURN;
}

bool
TransporterRegistry::start_service(SocketServer& socket_server)
{
  DBUG_ENTER("TransporterRegistry::start_service");
  if (m_transporter_interface.size() > 0 && !nodeIdSpecified)
  {
    g_eventLogger.error("TransporterRegistry::startReceiving: localNodeId not specified");
    DBUG_RETURN(false);
  }

  for (unsigned i= 0; i < m_transporter_interface.size(); i++)
  {
    Transporter_interface &t= m_transporter_interface[i];

    unsigned short port= (unsigned short)t.m_s_service_port;
    if(t.m_s_service_port<0)
      port= -t.m_s_service_port; // is a dynamic port
    TransporterService *transporter_service =
      new TransporterService(new SocketAuthSimple("ndbd", "ndbd passwd"));
    if(!socket_server.setup(transporter_service,
			    &port, t.m_interface))
    {
      DBUG_PRINT("info", ("Trying new port"));
      port= 0;
      if(t.m_s_service_port>0
	 || !socket_server.setup(transporter_service,
				 &port, t.m_interface))
      {
	/*
	 * If it wasn't a dynamically allocated port, or
	 * our attempts at getting a new dynamic port failed
	 */
	g_eventLogger.error("Unable to setup transporter service port: %s:%d!\n"
		 "Please check if the port is already used,\n"
		 "(perhaps the node is already running)",
		 t.m_interface ? t.m_interface : "*", t.m_s_service_port);
	delete transporter_service;
	DBUG_RETURN(false);
      }
    }
    t.m_s_service_port= (t.m_s_service_port<=0)?-port:port; // -`ve if dynamic
    DBUG_PRINT("info", ("t.m_s_service_port = %d",t.m_s_service_port));
    transporter_service->setTransporterRegistry(this);
  }
  DBUG_RETURN(true);
}

bool
TCP_Transporter::setSocketNonBlocking(NDB_SOCKET_TYPE socket){
  int flags;
  flags = fcntl(socket, F_GETFL, 0);
  if (flags < 0) {
#ifdef DEBUG_TRANSPORTER
    g_eventLogger.error("Set non-blocking server error1: %s", strerror(InetErrno));
#endif
  }//if
  flags |= NDB_NONBLOCK;
  if (fcntl(socket, F_SETFL, flags) == -1) {
#ifdef DEBUG_TRANSPORTER
    g_eventLogger.error("Set non-blocking server error2: %s", strerror(InetErrno));
#endif
  }//if
  return true;
}

Uint32 
TransporterRegistry::poll_TCP(Uint32 timeOutMillis)
{
  bool hasdata = false;
  if (false && nTCPTransporters == 0)
  {
    tcpReadSelectReply = 0;
    return 0;
  }
  
  NDB_SOCKET_TYPE maxSocketValue = -1;
  
  // Needed for TCP/IP connections
  // The read- and writeset are used by select
  
  FD_ZERO(&tcpReadset);

  // Prepare for sending and receiving
  for (int i = 0; i < nTCPTransporters; i++) {
    TCP_Transporter * t = theTCPTransporters[i];
    
    // If the transporter is connected
    NodeId nodeId = t->getRemoteNodeId();
    if (is_connected(nodeId) && t->isConnected()) {
      
      const NDB_SOCKET_TYPE socket = t->getSocket();
      // Find the highest socket value. It will be used by select
      if (socket > maxSocketValue)
	maxSocketValue = socket;
      
      // Put the connected transporters in the socket read-set 
      FD_SET(socket, &tcpReadset);
    }
    hasdata |= t->hasReceiveData();
  }
  
  timeOutMillis = hasdata ? 0 : timeOutMillis;
  
  struct timeval timeout;
  timeout.tv_sec  = timeOutMillis / 1000;
  timeout.tv_usec = (timeOutMillis % 1000) * 1000;

  // The highest socket value plus one
  maxSocketValue++; 
  
  tcpReadSelectReply = select(maxSocketValue, &tcpReadset, 0, 0, &timeout);  
  if(false && tcpReadSelectReply == -1 && errno == EINTR)
    g_eventLogger.info("woke-up by signal");

#ifdef NDB_WIN32
  if(tcpReadSelectReply == SOCKET_ERROR)
  {
    NdbSleep_MilliSleep(timeOutMillis);
  }
#endif
  
  return tcpReadSelectReply || hasdata;
}

bool
TCP_Transporter::doSend() {
  // If no sendbuffers are used nothing is done
  // Sends the contents of the SendBuffers until they are empty
  // or until select does not select the socket for write.
  // Before calling send, the socket must be selected for write
  // using "select"
  // It writes on the external TCP/IP interface until the send buffer is empty
  // and as long as write is possible (test it using select)

  // Empty the SendBuffers
  
  bool sent_any = true;
  while (m_sendBuffer.dataSize > 0)
  {
    const char * const sendPtr = m_sendBuffer.sendPtr;
    const Uint32 sizeToSend    = m_sendBuffer.sendDataSize;
    const int nBytesSent = send(theSocket, sendPtr, sizeToSend, 0);
    
    if (nBytesSent > 0) 
    {
      sent_any = true;
      m_sendBuffer.bytesSent(nBytesSent);
      
      sendCount ++;
      sendSize  += nBytesSent;
      if(sendCount == reportFreq)
      {
	reportSendLen(get_callback_obj(), remoteNodeId, sendCount, sendSize);
	sendCount = 0;
	sendSize  = 0;
      }
    } 
    else 
    {
      if (nBytesSent < 0 && InetErrno == EAGAIN && sent_any)
        break;

      // Send failed
#if defined DEBUG_TRANSPORTER
      g_eventLogger.error("Send Failure(disconnect==%d) to node = %d nBytesSent = %d "
	       "errno = %d strerror = %s",
	       DISCONNECT_ERRNO(InetErrno, nBytesSent),
	       remoteNodeId, nBytesSent, InetErrno, 
	       (char*)ndbstrerror(InetErrno));
#endif   
      if(DISCONNECT_ERRNO(InetErrno, nBytesSent)){
	doDisconnect();
	report_disconnect(InetErrno);
      }
      
      return false;
    }
  }
  return true;
}

Ndb_cluster_connection_impl::Ndb_cluster_connection_impl(const char *
							 connect_string)
  : Ndb_cluster_connection(*this),
    m_optimized_node_selection(1),
    m_name(0)
{
  DBUG_ENTER("Ndb_cluster_connection");
  DBUG_PRINT("enter",("Ndb_cluster_connection this=0x%lx", (long) this));

  g_eventLogger.createConsoleHandler();
  g_eventLogger.setCategory("NdbApi");
  g_eventLogger.enable(Logger::LL_ON, Logger::LL_ERROR);

  m_connect_thread= 0;
  m_connect_callback= 0;

  if (ndb_global_event_buffer_mutex == NULL)
    ndb_global_event_buffer_mutex= NdbMutex_Create();

#ifdef VM_TRACE
  if (ndb_print_state_mutex == NULL)
    ndb_print_state_mutex= NdbMutex_Create();
#endif
  m_config_retriever=
    new ConfigRetriever(connect_string, NDB_VERSION, NODE_TYPE_API);
  if (m_config_retriever->hasError())
  {
    printf("Could not connect initialize handle to management server: %s",
	   m_config_retriever->getErrorString());
    delete m_config_retriever;
    m_config_retriever= 0;
  }
  if (m_name)
  {
    NdbMgmHandle h= m_config_retriever->get_mgmHandle();
    ndb_mgm_set_name(h, m_name);
  }
  m_transporter_facade=
    TransporterFacade::theFacadeInstance= 
    new TransporterFacade();
  
  DBUG_VOID_RETURN;
}

bool TransporterRegistry::connect_client(NdbMgmHandle *h)
{
  DBUG_ENTER("TransporterRegistry::connect_client(NdbMgmHandle)");

  Uint32 mgm_nodeid= ndb_mgm_get_mgmd_nodeid(*h);

  if(!mgm_nodeid)
  {
    g_eventLogger.error("%s: %d", __FILE__, __LINE__);
    return false;
  }
  Transporter * t = theTransporters[mgm_nodeid];
  if (!t)
  {
    g_eventLogger.error("%s: %d", __FILE__, __LINE__);
    return false;
  }
  DBUG_RETURN(t->connect_client(connect_ndb_mgmd(h)));
}

/**
 * Given a connected NdbMgmHandle, turns it into a transporter
 * and returns the socket.
 */
NDB_SOCKET_TYPE TransporterRegistry::connect_ndb_mgmd(NdbMgmHandle *h)
{
  struct ndb_mgm_reply mgm_reply;

  if ( h==NULL || *h == NULL )
  {
    g_eventLogger.error("%s: %d", __FILE__, __LINE__);
    return NDB_INVALID_SOCKET;
  }

  for(unsigned int i=0;i < m_transporter_interface.size();i++)
    if (m_transporter_interface[i].m_s_service_port < 0
	&& ndb_mgm_set_connection_int_parameter(*h,
				   get_localNodeId(),
				   m_transporter_interface[i].m_remote_nodeId,
				   CFG_CONNECTION_SERVER_PORT,
				   m_transporter_interface[i].m_s_service_port,
				   &mgm_reply) < 0)
    {
      g_eventLogger.error("Error: %s: %d",
	       ndb_mgm_get_latest_error_desc(*h),
	       ndb_mgm_get_latest_error(*h));
      g_eventLogger.error("%s: %d", __FILE__, __LINE__);
      ndb_mgm_destroy_handle(h);
      return NDB_INVALID_SOCKET;
    }

  /**
   * convert_to_transporter also disposes of the handle (i.e. we don't leak
   * memory here.
   */
  NDB_SOCKET_TYPE sockfd= ndb_mgm_convert_to_transporter(h);
  if ( sockfd == NDB_INVALID_SOCKET)
  {
    g_eventLogger.error("Error: %s: %d",
	     ndb_mgm_get_latest_error_desc(*h),
	     ndb_mgm_get_latest_error(*h));
    g_eventLogger.error("%s: %d", __FILE__, __LINE__);
    ndb_mgm_destroy_handle(h);
  }
  return sockfd;
}

bool
TCP_Transporter::setSocketNonBlocking(NDB_SOCKET_TYPE socket){
  unsigned long  ul = 1;
  if(ioctlsocket(socket, FIONBIO, &ul))
  {
#ifdef DEBUG_TRANSPORTER
    g_eventLogger.error("Set non-blocking server error3: %d", InetErrno);
#endif
  }//if
  return true;
}

void
ErrorReporter::handleError(int messageID,
			   const char* problemData, 
			   const char* objRef,
			   NdbShutdownType nst)
{
  WriteMessage(messageID, problemData,
	       objRef, theEmulatedJamIndex, theEmulatedJam);

  g_eventLogger.info(problemData);
  g_eventLogger.info(objRef);

  childReportError(messageID);

  if(messageID == NDBD_EXIT_ERROR_INSERT){
    NdbShutdown(NST_ErrorInsert);
  } else {
    if (nst == NST_ErrorHandler)
      nst = s_errorHandlerShutdownType;
    NdbShutdown(nst);
  }
}

/*****************************************************************************
 * ~Ndb();
 *
 * Remark:        Disconnect with the database.
 *****************************************************************************/
Ndb::~Ndb()
{
    DBUG_ENTER("Ndb::~Ndb()");
    DBUG_PRINT("enter",("this: 0x%lx", (long) this));

    if (m_sys_tab_0)
        getDictionary()->removeTableGlobal(*m_sys_tab_0, 0);

    assert(theImpl->m_ev_op == 0); // user should return NdbEventOperation's
    for (NdbEventOperationImpl *op= theImpl->m_ev_op; op; op=op->m_next)
    {
        if (op->m_state == NdbEventOperation::EO_EXECUTING && op->stop())
            g_eventLogger.error("stopping NdbEventOperation failed in Ndb destructor");
        op->m_magic_number= 0;
    }
    doDisconnect();

    /* Disconnect from transporter to stop signals from coming in */
    if (theImpl->m_transporter_facade != NULL && theNdbBlockNumber > 0) {
        theImpl->m_transporter_facade->close(theNdbBlockNumber, theFirstTransId);
    }

    delete theEventBuffer;

    releaseTransactionArrays();

    delete []theConnectionArray;
    if(theCommitAckSignal != NULL) {
        delete theCommitAckSignal;
        theCommitAckSignal = NULL;
    }

    delete theImpl;

#ifdef POORMANSPURIFY
#ifdef POORMANSGUI
    ndbout << "cnewSignals=" << cnewSignals << endl;
    ndbout << "cfreeSignals=" << cfreeSignals << endl;
    ndbout << "cgetSignals=" << cgetSignals << endl;
    ndbout << "creleaseSignals=" << creleaseSignals << endl;
#endif
    // Poor mans purifier
    assert(cnewSignals == cfreeSignals);
    assert(cgetSignals == creleaseSignals);
#endif
    DBUG_VOID_RETURN;
}