C++ Result::bytes_transferred方法代码示例

void
Svc_Handler::handle_read_stream (const ACE_Asynch_Read_Stream::Result &result)
{
  if (result.success () && result.bytes_transferred () > 0)
    {
      result.message_block ().rd_ptr ()[result.message_block ().length ()] = '\0';

      // Print out the message received from the server.
      ACE_DEBUG ((LM_DEBUG,
                  ACE_TEXT ("(%t) message size %d.\n"),
                  result.message_block ().length ()));
      ACE_DEBUG ((LM_DEBUG,
                  ACE_TEXT ("%C"),
                  result.message_block ().rd_ptr ()));
      // Reset the message block here to make sure multiple writes to
      // the pipe don't keep appending to the message_block!
      this->mb_.reset ();

      this->ar_.read (this->mb_, this->mb_.size ());
    }
  else
    ACE_Proactor::end_event_loop ();
}

void ProactorService::handle_read_stream( const ACE_Asynch_Read_Stream::Result& result )
{
	ACE_Message_Block& block = result.message_block();
	if (!result.success() || result.bytes_transferred() == 0)
	{
		block.release();
		ReserveClose();
	}
	else
	{
		if (false == ISession::OnReceive(block.rd_ptr(), (unsigned short)block.length(), m_sessionDesc))
		{
			block.release();
			ReserveClose();
			return;
		}
//20150322 memory leak fix
		SendInternal(block.rd_ptr(), (unsigned short)block.length());
		block.release();


		PostRecv();
	}
}

void
PSession::trace_read_completion (const ACE_Asynch_Read_Stream::Result &result)
{
    {
        ACE_GUARD (ACE_SYNCH_MUTEX, monitor, this->mutex ());

        this->update_last_time();

        if (result.success())
            this->total_rcv_ += result.bytes_transferred ();
    }

    int loglevel = this->config().loglevel ();

    ACE_Message_Block & mb = result.message_block ();

    size_t xfer_bytes = result.bytes_transferred();
    char * last  = mb.wr_ptr();
    char * first = last - xfer_bytes; 

    if (loglevel == 0)
    {
        LogLocker log_lock;

        ACE_DEBUG ((LM_DEBUG,
            ACE_TEXT ("(%t) **** %s=%d handle_read_stream() ****\n"),
            this->get_name(),
            this->index()));

        ACE_DEBUG ((LM_DEBUG,
            ACE_TEXT ("bytes_to_read = %d\n"),
            result.bytes_to_read ()));

        ACE_DEBUG ((LM_DEBUG,
            ACE_TEXT ("handle = %d\n"),
            result.handle ()));

        ACE_DEBUG ((LM_DEBUG,
            ACE_TEXT ("bytes_transfered = %d\n"),
            xfer_bytes));

        ACE_DEBUG ((LM_DEBUG,
            ACE_TEXT ("error = %d\n"),
            result.error ()));

        ACE_DEBUG ((LM_DEBUG,
            ACE_TEXT ("message_block:\n")));

        ACE_HEX_DUMP ((LM_DEBUG, first, xfer_bytes));


        ACE_DEBUG ((LM_DEBUG,
            ACE_TEXT ("**** end of message ****************\n")));
    }
    else if (result.error () != 0 )
    {
        LogLocker log_lock;

        ACE_Log_Msg::instance ()->errnum (result.error ());
        ACE_OS::last_error (result.error ());
        ACE_Log_Msg::instance ()->log (LM_ERROR,
            ACE_TEXT ("(%t) %s=%d READ %p\n"),
            this->get_name (),
            this->index (),
            ACE_TEXT ("ERROR"));
    }
    else if (loglevel == 1)
    {
        ACE_DEBUG ((LM_DEBUG,
            ACE_TEXT ("(%t) %s=%d read_bytes=%d OK\n"),
            this->get_name (),
            this->index (),
            xfer_bytes));
    }

    return;
}

void Reciever::handle_read_stream (const ACE_Asynch_Read_Stream::Result &result)
{  
    ACE_Message_Block &mb = result.message_block ();

    //if the connection is failed£¬release the connection resource to the client
    if (!result.success () || result.bytes_transferred () == 0)  
    {  
        mb.release ();  
        delete this;  
        return;  
    }

	ACE_OS::printf("In read data\n");

	dispatcher = new MessageDispatcher();
	dispatcher->dispatchMessage(mb);
	handler = new MessageHandler();
	ACE_UINT32 cmd = dispatcher->getCmd();
	ACE_Message_Block* smb;

	//case CONNECT_SERVER
	//------------------------------------------------------------------------//
	if(cmd == COM::CONNECT_SERVER)
	{
		ACE_OS::printf("In CONNECT_SERVER\n");

		pair<ACE_UINT16,ACE_UINT16> randomPos = handler->handleConnectionSever(dispatcher->getIP(),dispatcher->getPort());
		if(randomPos.first != 0 && randomPos.second != 0)
		{
			MessageConstructor::getInstance()->setAddress(this->local_address);
			smb = MessageConstructor::getInstance()->createConnectionAck(randomPos.first,randomPos.second,DEFAULT_AOI_RADIUS);
		}
	}

	//case GET_SCENE_DATA
	//------------------------------------------------------------------------//
	else if(cmd == COM::GET_SCENE_DATA)
	{

	}

	//case CONNECT_FAIL_REPORT
	//------------------------------------------------------------------------//

	//case CLIENT_MOVE
	//------------------------------------------------------------------------//

	//case CLIENT_QUIT
	//------------------------------------------------------------------------//

	//case MORE_COMMAND
	//------------------------------------------------------------------------//

	dispatcher->setMB_NULL();
	mb.release();
	ACE_OS::printf("\nMMB data:%s\n",smb->rd_ptr());
	if (this->writer_.write(*smb,smb->length()) != 0)  
	{  
		ACE_OS::printf("Write Failed!");
		//MessageConstructor::getInstance()->setMB_NULL();
		smb->release();
		delete this; 
		return;
	}

	MessageConstructor::getInstance()->setMB_NULL();

	if(handler != NULL)
		delete handler;
	if(dispatcher != NULL)
		delete dispatcher;

	smb->release();
}

void
Client_Service_Handler::handle_read_stream (
  const ACE_Asynch_Read_Stream::Result &result)
{
  ACE_GUARD (ACE_SYNCH_RECURSIVE_MUTEX, guard, this->mtx_);

  this->pending_reads_--;

  if (!result.success () || 0 == result.bytes_transferred ())
  {
    // Error or remote disconnect

    result.message_block ().release ();

    if (!this->closing_)
    {
      // No error message when shutting down

      if (!result.success ())
      {
        ACE_DEBUG ((LM_DEBUG, ACE_TEXT (
          "Client_Service_Handler::handle_read_stream: error: %d\n"),
          result.error ()));
      }
      else
      {
        ACE_DEBUG ((LM_DEBUG, ACE_TEXT (
          "Client_Service_Handler::handle_read_stream: remote disconnect\n")));
      }
    }

    this->read_completed_.signal ();

    this->cancel_and_close ();
  }
  else if (result.bytes_transferred () < result.bytes_to_read ())
  {
    // More to read...

    if (this->read (result.message_block(),
      result.bytes_to_read () - result.bytes_transferred ()) < 0)
    {
      result.message_block ().release ();

      this->cancel_and_close ();
    }
  }
  else
  {
    // Read it all

    this->completed_reads_++;

    result.message_block ().release ();

    // We now have sent and received data in the proactor thread.  Signal the
    // main thread to try sending data in the main thread.
    if (this->completed_reads_ == 1)
    {
      this->ready_for_external_write_.signal ();
    }
    else
    {
      // The main thread wrote data that was echoed back to us on our
      // second read.  If we get here, the test was successful in that
      // the main thread successfully sent data to the server.
      this->read_successful_ = 1;
      this->read_completed_.signal ();
    }

    // Next read
    if (this->read_data () < 0)
    {
      this->cancel_and_close ();
    }
  }
}

void CProConnectClient::handle_read_stream(const ACE_Asynch_Read_Stream::Result &result)
{
	ACE_Message_Block& mb = result.message_block();
	uint32 u4PacketLen = (uint32)result.bytes_transferred();

	//OUR_DEBUG((LM_DEBUG,"[CProConnectClient::handle_read_stream] m_nServerID=%d, bytes_transferred=%d, this=0x%08x.\n", 
	//	m_nServerID, 
	//	u4PacketLen,
	//	this));
	
	if(!result.success() || u4PacketLen == 0)
	{
		mb.release();
		if(NULL != m_pClientMessage)
		{
			_ClientIPInfo objServerIPInfo;
			sprintf_safe(objServerIPInfo.m_szClientIP, MAX_BUFF_20, "%s", m_AddrRemote.get_host_addr());
			objServerIPInfo.m_nPort = m_AddrRemote.get_port_number();
			
			//这里只处理远端服务器断开连接的消息，回调ConnectError
			//服务器主动关闭不在回调ConnectError
			if(S2S_NEED_CALLBACK == m_ems2s)
			{
				m_pClientMessage->ConnectError((int)ACE_OS::last_error(), objServerIPInfo);
			}
		}
		//OUR_DEBUG((LM_INFO, "[CProConnectClient::handle_read_stream]m_ems2s=%d.\n", m_ems2s));
		Close();
		return;
	}
	else 
	{
		//处理接收数据(这里不区分是不是完整包，交给上层逻辑自己去判定)
		if(NULL != m_pClientMessage)
		{
			_ClientIPInfo objServerIPInfo;
			sprintf_safe(objServerIPInfo.m_szClientIP, MAX_BUFF_20, "%s", m_AddrRemote.get_host_addr());
			objServerIPInfo.m_nPort = m_AddrRemote.get_port_number();
			//m_pClientMessage->RecvData(&mb, objServerIPInfo);

			//这里处理一下是不是完整包
			uint16 u2CommandID             = 0;
			ACE_Message_Block* pRecvFinish = NULL;

			m_atvRecv     = ACE_OS::gettimeofday();
			m_emRecvState = SERVER_RECV_BEGIN;

			while(true)
			{
				bool blRet = m_pClientMessage->Recv_Format_data(&mb, App_MessageBlockManager::instance(), u2CommandID, pRecvFinish);
				if(true == blRet)
				{
					if(App_MainConfig::instance()->GetConnectServerRunType() == 0)
					{
						//调用数据包处理
						m_pClientMessage->RecvData(u2CommandID, pRecvFinish, objServerIPInfo);
						//回收处理包
						App_MessageBlockManager::instance()->Close(pRecvFinish);
					}
					else
					{
						//异步消息处理
						_Server_Message_Info* pServer_Message_Info = new _Server_Message_Info();
						pServer_Message_Info->m_pClientMessage  = m_pClientMessage;
						pServer_Message_Info->m_objServerIPInfo = objServerIPInfo;
						pServer_Message_Info->m_pRecvFinish     = pRecvFinish;
						pServer_Message_Info->m_u2CommandID     = u2CommandID;
						App_ServerMessageTask::instance()->PutMessage(pServer_Message_Info);
					}
				}
				else
				{
					break;
				}
			}

		}
		mb.release();
		m_emRecvState = SERVER_RECV_END;


		//接受下一个数据包
		RecvData(App_MainConfig::instance()->GetConnectServerRecvBuffer());
	}
}

void
Receiver::handle_read_stream (const ACE_Asynch_Read_Stream::Result &result)
{
  ACE_Message_Block *mb = &result.message_block ();

  ACE_DEBUG ((LM_DEBUG,
              ACE_TEXT ("Receiver::handle_read_stream - (%s) read %d\n"),
              this->odd_ ? ACE_TEXT ("ODD ") : ACE_TEXT ("EVEN"),
              result.bytes_transferred ()));

  // Transfer only complete chunks to the writer.
  // Save last partial chunk for the next call.
  // On disconnect (error or 0 transferred), transfer whatever we have.

  // at this stage there should not be anything there
  ACE_TEST_ASSERT (!this->partial_chunk_);

  // first, remove the empty chunks
  remove_empty_chunks (mb);

  if (mb && Receiver::writer_)
    { // there's something to write, and who to write to

      // write everything or only complete chunks?

      // write everything - when no new bytes were transferred
      int write_everything = 0;
      if (!result.bytes_transferred ())
        write_everything = 1;
      if (write_everything)
        Receiver::writer_->handle_read_chunks_chain (mb,
                                                     this->odd_ ? ODD : EVEN);
      else
        { // filter out the partial chunk at the end (if present)
          // and save it for later before writing the full chunks

          // have this->partial_chunk_ point to the last chunk in the chain
          size_t last_index = last_chunk (mb, this->partial_chunk_);
          if (this->partial_chunk_ &&
              this->partial_chunk_->length () < chunk_size)
            { // found partial chunk at end of chain
              // detach it from the chain
              if (last_index > 1) // chain bigger than 1
                {
                  ACE_Message_Block *pre_last = mb;
                  for (size_t index = 1; index < last_index - 1; ++index)
                    pre_last = pre_last->cont ();

                  // detach partial chunk from chain
                  pre_last->cont (0);
                }
              else
                // chain in length of 1 - so we need to zero mb
                mb = 0;
            }
          else // last is a full chunk, so hand it over with the rest
            this->partial_chunk_ = 0;

          // transfer (if there's anything left)
          if (mb && mb->total_length ())
            Receiver::writer_->handle_read_chunks_chain (
                                                         mb,
                                                         this->odd_ ? ODD : EVEN);

          // initiate more reads only if no error
          if (!result.error ())
            this->initiate_read_stream ();
          else
            ACE_TEST_ASSERT (0);
        }
    }
  else if (mb && !Receiver::writer_)
    // no one to write to
    free_chunks_chain (mb);

  --this->io_count_;

  this->check_destroy ();
}

void CProConsoleHandle::handle_read_stream(const ACE_Asynch_Read_Stream::Result &result)
{
	ACE_Message_Block& mb = result.message_block();
	uint32 u4PacketLen = (uint32)result.bytes_transferred();
	int nTran = (int)result.bytes_transferred();

	if(!result.success() || result.bytes_transferred() == 0)
	{
		//链接断开
		if(m_pPacketParse->GetMessageHead() != NULL)
		{
			App_MessageBlockManager::instance()->Close(m_pPacketParse->GetMessageHead());
		}

		if(m_pPacketParse->GetMessageBody() != NULL)
		{
			App_MessageBlockManager::instance()->Close(m_pPacketParse->GetMessageBody());
		}

		if(&mb != m_pPacketParse->GetMessageHead() && &mb != m_pPacketParse->GetMessageBody())
		{
			//OUR_DEBUG((LM_DEBUG,"[CProConsoleHandle::handle_read_stream] Message_block release.\n"));
			App_MessageBlockManager::instance()->Close(&mb);
		}
		SAFE_DELETE(m_pPacketParse);

		OUR_DEBUG((LM_DEBUG,"[%tCConnectHandler::handle_read_stream]Connectid=[%d] error(%d)...\n", GetConnectID(), errno));
		//AppLogManager::instance()->WriteLog(LOG_SYSTEM_CONNECT, "Close Connection from [%s:%d] RecvSize = %d, RecvCount = %d, SendSize = %d, SendCount = %d.",m_addrRemote.get_host_addr(), m_addrRemote.get_port_number(), m_u4AllRecvSize, m_u4AllRecvCount, m_u4AllSendSize, m_u4AllSendCount);
		//因为是要关闭连接，所以要多关闭一次IO，对应Open设置的1的初始值

		Close(2);

		return;
	}

	m_atvInput = ACE_OS::gettimeofday();

	if(result.bytes_transferred() < result.bytes_to_read())
	{
		//短读，继续读
		int nRead = (int)result.bytes_to_read() - (int)result.bytes_transferred();
		if(-1 == m_Reader.read(mb, nRead))
		{
			if(m_pPacketParse->GetMessageHead() != NULL)
			{
				App_MessageBlockManager::instance()->Close(m_pPacketParse->GetMessageHead());
			}

			if(m_pPacketParse->GetMessageBody() != NULL)
			{
				App_MessageBlockManager::instance()->Close(m_pPacketParse->GetMessageBody());
			}

			if(&mb != m_pPacketParse->GetMessageHead() && &mb != m_pPacketParse->GetMessageBody())
			{
				App_MessageBlockManager::instance()->Close(&mb);
			}
			SAFE_DELETE(m_pPacketParse);

			OUR_DEBUG((LM_ERROR, "[CConnectHandler::handle_read_stream]Read Shoter error(%d).", errno));
			//AppLogManager::instance()->WriteLog(LOG_SYSTEM_CONNECT, "Close Connection from [%s:%d] RecvSize = %d, RecvCount = %d, SendSize = %d, SendCount = %d.",m_addrRemote.get_host_addr(), m_addrRemote.get_port_number(), m_u4AllRecvSize, m_u4AllRecvCount, m_u4AllSendSize, m_u4AllSendCount);
			//因为是要关闭连接，所以要多关闭一次IO，对应Open设置的1的初始值

			Close(2);
			return;
		}

	}
	else if(mb.length() == m_pPacketParse->GetPacketHeadLen() && m_pPacketParse->GetIsHead() == false)
	{
		//判断头的合法性
		m_pPacketParse->SetPacketHead(GetConnectID(), &mb, App_MessageBlockManager::instance());
		uint32 u4PacketBodyLen = m_pPacketParse->GetPacketBodyLen();

		//如果超过了最大包长度，为非法数据
		if(u4PacketBodyLen >= MAX_MSG_PACKETLENGTH || u4PacketBodyLen <= 0)
		{
			OUR_DEBUG((LM_ERROR, "[CConnectHandler::handle_read_stream]u4PacketHeadLen(%d) more than MAX_MSG_PACKETLENGTH.", u4PacketBodyLen));

			if(m_pPacketParse->GetMessageHead() != NULL)
			{
				App_MessageBlockManager::instance()->Close(m_pPacketParse->GetMessageHead());
			}

			if(m_pPacketParse->GetMessageBody() != NULL)
			{
				App_MessageBlockManager::instance()->Close(m_pPacketParse->GetMessageBody());
			}

			if(&mb != m_pPacketParse->GetMessageHead() && &mb != m_pPacketParse->GetMessageBody())
			{
				App_MessageBlockManager::instance()->Close(&mb);
			}
			SAFE_DELETE(m_pPacketParse);

			Close(2);
			return;
		}
		else
		{
//.........这里部分代码省略.........