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C++ Transporter::getWritePtr方法代码示例

本文整理汇总了C++中Transporter::getWritePtr方法的典型用法代码示例。如果您正苦于以下问题:C++ Transporter::getWritePtr方法的具体用法?C++ Transporter::getWritePtr怎么用?C++ Transporter::getWritePtr使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在Transporter的用法示例。


在下文中一共展示了Transporter::getWritePtr方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: reportError

SendStatus
TransporterRegistry::prepareSend(const SignalHeader * const signalHeader, 
				 Uint8 prio,
				 const Uint32 * const signalData,
				 NodeId nodeId, 
				 class SectionSegmentPool & thePool,
				 const SegmentedSectionPtr ptr[3]){
  

  Transporter *t = theTransporters[nodeId];
  if(t != NULL && 
     (((ioStates[nodeId] != HaltOutput) && (ioStates[nodeId] != HaltIO)) || 
      ((signalHeader->theReceiversBlockNumber == 252)|| 
       (signalHeader->theReceiversBlockNumber == 4002)))) {
    
    if(t->isConnected()){
      Uint32 lenBytes = t->m_packer.getMessageLength(signalHeader, ptr);
      if(lenBytes <= MAX_MESSAGE_SIZE){
	Uint32 * insertPtr = t->getWritePtr(lenBytes, prio);
	if(insertPtr != 0){
	  t->m_packer.pack(insertPtr, prio, signalHeader, signalData, thePool, ptr);
	  t->updateWritePtr(lenBytes, prio);
	  return SEND_OK;
	}
	
	
	/**
	 * @note: on linux/i386 the granularity is 10ms
	 *        so sleepTime = 2 generates a 10 ms sleep.
	 */
	int sleepTime = 2;
	for(int i = 0; i<50; i++){
	  if((nSHMTransporters+nSCITransporters) == 0)
	    NdbSleep_MilliSleep(sleepTime); 
	  insertPtr = t->getWritePtr(lenBytes, prio);
	  if(insertPtr != 0){
	    t->m_packer.pack(insertPtr, prio, signalHeader, signalData, thePool, ptr);
	    t->updateWritePtr(lenBytes, prio);
	    break;
	  }
	}
	
	if(insertPtr != 0){
	  /**
	   * Send buffer full, but resend works
	   */
	  reportError(callbackObj, nodeId, TE_SEND_BUFFER_FULL);
	  return SEND_OK;
	}
	
	WARNING("Signal to " << nodeId << " lost(buffer)");
	reportError(callbackObj, nodeId, TE_SIGNAL_LOST_SEND_BUFFER_FULL);
	return SEND_BUFFER_FULL;
      } else {
	return SEND_MESSAGE_TOO_BIG;
      }
    } else {
      DEBUG("Signal to " << nodeId << " lost(disconnect) ");
      return SEND_DISCONNECTED;
    }
  } else {
    DEBUG("Discarding message to block: " 
	  << signalHeader->theReceiversBlockNumber 
	  << " node: " << nodeId);
    
    if(t == NULL)
      return SEND_UNKNOWN_NODE;
    
    return SEND_BLOCKED;
  }
}
开发者ID:A-eolus,项目名称:mysql,代码行数:71,代码来源:TransporterRegistry.cpp


注:本文中的Transporter::getWritePtr方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。