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C++ NdbConnection::close方法代码示例

本文整理汇总了C++中NdbConnection::close方法的典型用法代码示例。如果您正苦于以下问题：C++ NdbConnection::close方法的具体用法？C++ NdbConnection::close怎么用？C++ NdbConnection::close使用的例子？那么, 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类NdbConnection的用法示例。


在下文中一共展示了NdbConnection::close方法的5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: print_part_info

static 
void print_part_info(Ndb* pNdb, NDBT_Table* pTab)
{
  InfoInfo g_part_info[] = {
    { "Partition", 0, NdbDictionary::Column::FRAGMENT },
    { "Row count", 0, NdbDictionary::Column::ROW_COUNT },
    { "Commit count", 0, NdbDictionary::Column::COMMIT_COUNT },
    { "Frag fixed memory", 0, NdbDictionary::Column::FRAGMENT_FIXED_MEMORY },
    { "Frag varsized memory", 0, NdbDictionary::Column::FRAGMENT_VARSIZED_MEMORY },
    { 0, 0, 0 }
  };

  ndbout << "-- Per partition info -- " << endl;
  
  NdbConnection* pTrans = pNdb->startTransaction();
  if (pTrans == 0)
    return;
  
  do
  {
    NdbScanOperation* pOp= pTrans->getNdbScanOperation(pTab->getName());
    if (pOp == NULL)
      break;
    
    int rs = pOp->readTuples(NdbOperation::LM_CommittedRead); 
    if (rs != 0)
      break;
    
    if (pOp->interpret_exit_last_row() != 0)
      break;
    
    Uint32 i = 0;
    for(i = 0; g_part_info[i].m_title != 0; i++)
    {
      if ((g_part_info[i].m_rec_attr = pOp->getValue(g_part_info[i].m_column)) == 0)
	break;
    }

    if (g_part_info[i].m_title != 0)
      break;

    if (pTrans->execute(NoCommit) != 0)
      break;
	
    for (i = 0; g_part_info[i].m_title != 0; i++)
      ndbout << g_part_info[i].m_title << "\t";
    ndbout << endl;
    
    while(pOp->nextResult() == 0)
    {
      for(i = 0; g_part_info[i].m_title != 0; i++)
      {
	ndbout << *g_part_info[i].m_rec_attr << "\t";
      }
      ndbout << endl;
    }
  } while(0);
  
  pTrans->close();
}
开发者ID:A-eolus，项目名称:mysql，代码行数:60，代码来源:desc.cpp

示例2: filter


//.........这里部分代码省略.........
            pOp = pTrans->getNdbOperation(g_table);
            check = pOp->readTuple();
            check = pOp->equal(pk, start_row);
            break;
        case 1:
            for(; start_row<stop_row; start_row++) {
                pOp = pTrans->getNdbOperation(g_table);
                check = pOp->readTuple();
                check = pOp->equal(pk, start_row);
                for(int j = 0; j<g_tab->getNoOfColumns(); j++) {
                    res = pOp->getValue(j);
                    assert(res);
                }
            }
            break;
        case 2:
            pOp = pTrans->getNdbIndexOperation(g_unique, g_table);
            check = pOp->readTuple();
            check = pOp->equal(pk, start_row);
            break;
        case 3:
            for(; start_row<stop_row; start_row++) {
                pOp = pTrans->getNdbIndexOperation(g_unique, g_table);
                check = pOp->readTuple();
                check = pOp->equal(pk, start_row);
                for(int j = 0; j<g_tab->getNoOfColumns(); j++) {
                    res = pOp->getValue(j);
                    assert(res);
                }
            }
            break;
        case 4:
            pOp = pSp = pIp = pTrans->getNdbIndexScanOperation(g_ordered,g_table);
            pIp->readTuples(NdbScanOperation::LM_CommittedRead, 0, 0);
            check = pIp->setBound(pk, NdbIndexScanOperation::BoundEQ, &start_row);
            break;
        case 5:
            pOp = pSp = pIp = pTrans->getNdbIndexScanOperation(g_ordered,g_table);
            pIp->readTuples(NdbScanOperation::LM_CommittedRead, 0, 0);
            check = pIp->setBound(pk, NdbIndexScanOperation::BoundLE, &start_row);
            check = pIp->setBound(pk, NdbIndexScanOperation::BoundGT, &stop_row);
            start_row = stop_row;
            break;
        case 6:
            pOp = pSp = pIp = pTrans->getNdbIndexScanOperation(g_ordered,g_table);
            pIp->readTuples(NdbScanOperation::LM_CommittedRead, 0, 0, true);
            check = pIp->setBound(pk, NdbIndexScanOperation::BoundLE, &start_row);
            check = pIp->setBound(pk, NdbIndexScanOperation::BoundGT, &stop_row);
            start_row = stop_row;
            break;
        case 7:
            pOp = pSp = pTrans->getNdbScanOperation(g_table);
            pSp->readTuples(NdbScanOperation::LM_CommittedRead, 0, 0);
            NdbScanFilter filter(pOp) ;
            filter.begin(NdbScanFilter::AND);
            filter.ge(pk, start_row);
            filter.lt(pk, stop_row);
            filter.end();
            start_row = stop_row;
            break;
        }

        assert(res);
        if(check != 0) {
            ndbout << pOp->getNdbError() << endl;
            ndbout << pTrans->getNdbError() << endl;
        }
        assert(check == 0);

        for(int j = 0; j<g_tab->getNoOfColumns(); j++) {
            res = pOp->getValue(j);
            assert(res);
        }

        check = pTrans->execute(NoCommit);
        if(check != 0) {
            ndbout << pTrans->getNdbError() << endl;
        }
        assert(check == 0);
        if(g_paramters[P_OPER].value >= 4) {
            while((check = pSp->nextResult(true)) == 0) {
                cnt++;
            }

            if(check == -1) {
                err(pTrans->getNdbError());
                return -1;
            }
            assert(check == 1);
            pSp->close();
        }
    }
    assert(g_paramters[P_OPER].value < 4 || (cnt == range));

    pTrans->close();

    stop = NdbTick_CurrentMillisecond();
    g_times[g_paramters[P_OPER].value] += (stop - start1);
    return 0;
}
开发者ID:liuqian1990，项目名称:mariadb-10.0，代码行数:101，代码来源:testReadPerf.cpp

示例3: filter


//.........这里部分代码省略.........
                                   &options,
                                   sizeof(NdbScanOperation::ScanOptions));
      if (pIOp == NULL)
      {
        err(pTrans->getNdbError());
        abort();
      }
        
      assert(pIOp);

      switch(g_paramters[P_BOUND].value){
      case 0: // All
	break;
      case 1: // None
        check= setEqBound(pIOp, g_index_record, 0, 0);
        assert(check == 0);
	break;
      case 2: { // 1 row
      default:  
	assert(g_table->getNoOfPrimaryKeys() == 1); // only impl. so far
	int tot = g_paramters[P_ROWS].value;
	int row = rand() % tot;

        check= setEqBound(pIOp, g_index_record, row, 0);
        assert(check == 0);
	break;
      }
      case 3: { // read multi
	int multi = g_paramters[P_MULTI].value;
	int tot = g_paramters[P_ROWS].value;
        int rangeStart= i;
        for(; multi > 0 && i < iter; --multi, i++)
	{
	  int row = rand() % tot;
          /* Set range num relative to this set of bounds */
          check= setEqBound(pIOp, g_index_record, row, i- rangeStart);
          if (check != 0)
          {
            err(pIOp->getNdbError());
            abort();
          }
          assert(check == 0);
	}
	break;
      }
      }
    }
    assert(pOp);
    
    assert(check == 0);

    int rows = 0;
    check = pTrans->execute(NoCommit);
    assert(check == 0);
    int fetch = g_paramters[P_FETCH].value;

    const char * result_row_ptr;

    while((check = pOp->nextResult(&result_row_ptr, true, false)) == 0){
      do {
	rows++;
      } while(!fetch && ((check = pOp->nextResult(&result_row_ptr, false, false)) == 0));
      if(check == -1){
        err(pTrans->getNdbError());
        return -1;
      }
      assert(check == 2);
    }

    if(check == -1){
      err(pTrans->getNdbError());
      return -1;
    }
    assert(check == 1);

    pTrans->close();
    pTrans = 0;

    stop = NdbTick_CurrentMillisecond();
    
    int time_passed= (int)(stop - start1);
    sample_rows += rows;
    sum_time+= time_passed;
    tot_rows+= rows;
    
    if(sample_rows >= tot)
    {
      int sample_time = (int)(stop - sample_start);
      g_info << "Found " << sample_rows << " rows" << endl;
      g_err.println("Time: %d ms = %u rows/sec", sample_time,
		    (1000*sample_rows)/sample_time);
      sample_rows = 0;
      sample_start = stop;
    }
  }
  
  g_err.println("Avg time: %d ms = %u rows/sec", sum_time/tot_rows,
                (1000*tot_rows)/sum_time);
  return 0;
}
开发者ID:，项目名称:，代码行数:101，代码来源:

示例4: filter


//.........这里部分代码省略.........
	int tot = g_paramters[P_ROWS].value;
	for(; multi > 0 && i < iter; --multi, i++)
	{
	  int row = rand() % tot;
	  pIOp->setBound((Uint32)0, NdbIndexScanOperation::BoundEQ, &row);
	  pIOp->end_of_bound(i);
	}
	if(g_paramters[P_RESET].value == 2)
	  goto execute;
	break;
      }
      }
    }
    assert(pOp);
    
    switch(g_paramters[P_FILT].value){
    case 0: // All
      check = pOp->interpret_exit_ok();
      break;
    case 1: // None
      check = pOp->interpret_exit_nok();
      break;
    case 2: { // 1 row
    default:  
      assert(g_table->getNoOfPrimaryKeys() == 1); // only impl. so far
      abort();
#if 0
      int tot = g_paramters[P_ROWS].value;
      int row = rand() % tot;
      NdbScanFilter filter(pOp) ;   
      filter.begin(NdbScanFilter::AND);
      fix_eq(filter, pOp, row);
      filter.end();
      break;
#endif
    }
    }
    if(check != 0){
      err(pOp->getNdbError());
      return -1;
    }
    assert(check == 0);

    if(g_paramters[P_RESET].value == 1)
      g_paramters[P_RESET].value = 2;
    
    for(int i = 0; i<g_table->getNoOfColumns(); i++){
      pOp->getValue(i);
    }

    if(g_paramters[P_RESET].value == 1)
      g_paramters[P_RESET].value = 2;
execute:
    int rows = 0;
    check = pTrans->execute(NoCommit);
    assert(check == 0);
    int fetch = g_paramters[P_FETCH].value;
    while((check = pOp->nextResult(true)) == 0){
      do {
	rows++;
      } while(!fetch && ((check = pOp->nextResult(false)) == 0));
      if(check == -1){
        err(pTrans->getNdbError());
        return -1;
      }
      assert(check == 2);
    }

    if(check == -1){
      err(pTrans->getNdbError());
      return -1;
    }
    assert(check == 1);
    if(g_paramters[P_RESET].value == 0)
    {
      pTrans->close();
      pTrans = 0;
    }
    stop = NdbTick_CurrentMillisecond();
    
    int time_passed= (int)(stop - start1);
    sample_rows += rows;
    sum_time+= time_passed;
    tot_rows+= rows;
    
    if(sample_rows >= tot)
    {
      int sample_time = (int)(stop - sample_start);
      g_info << "Found " << sample_rows << " rows" << endl;
      g_err.println("Time: %d ms = %u rows/sec", sample_time,
		    (1000*sample_rows)/sample_time);
      sample_rows = 0;
      sample_start = stop;
    }
  }
  
  g_err.println("Avg time: %d ms = %u rows/sec", sum_time/tot_rows,
                (1000*tot_rows)/sum_time);
  return 0;
}
开发者ID:4T-Shirt，项目名称:mysql，代码行数:101，代码来源:testScanPerf.cpp

示例5: print_part_info


//.........这里部分代码省略.........
  NdbInterpretedCode code(NULL, // Table is irrelevant
                          &codeSpace[0],
                          codeWords);
  if ((code.interpret_exit_last_row() != 0) ||
      (code.finalise() != 0))
  {
    return;
  }

  NdbConnection* pTrans = pNdb->startTransaction();
  if (pTrans == 0)
    return;
  
  do
  {
    NdbScanOperation* pOp= pTrans->getNdbScanOperation(pTab->getName());
    if (pOp == NULL)
      break;
    
    int rs = pOp->readTuples(NdbOperation::LM_CommittedRead); 
    if (rs != 0)
      break;
    
    if (pOp->setInterpretedCode(&code) != 0)
      break;
    
    Uint32 i = 0;
    for(i = 0; g_part_info[i].m_title != 0; i++)
    {
      if ((g_part_info[i].m_rec_attr = pOp->getValue(g_part_info[i].m_column)) == 0)
	break;
    }

    if (g_part_info[i].m_title != 0)
      break;

    if (pTrans->execute(NoCommit) != 0)
      break;
	
    for (i = 0; g_part_info[i].m_title != 0; i++)
      ndbout << g_part_info[i].m_title << "\t";

    if (_nodeinfo)
    {
      ndbout << "Nodes\t";
    }
    
    ndbout << endl;
    
    while(pOp->nextResult() == 0)
    {
      for(i = 0; g_part_info[i].m_title != 0; i++)
      {
        NdbRecAttr &r= *g_part_info[i].m_rec_attr;
        unsigned long long val;
        switch (r.getType()) {
        case NdbDictionary::Column::Bigunsigned:
          val= r.u_64_value();
          break;
        case NdbDictionary::Column::Unsigned:
          val= r.u_32_value();
          break;
        default:
          abort();
        }
        if (val != 0)
          printf("%-*.llu\t", (int)strlen(g_part_info[i].m_title), val);
        else
          printf("0%*.s\t", (int)strlen(g_part_info[i].m_title), "");
      }

      if (_nodeinfo)
      {
        Uint32 partId = g_part_info[ FragmentIdOffset ].m_rec_attr -> u_32_value();
        
        const Uint32 MaxReplicas = 4;
        Uint32 nodeIds[ MaxReplicas ];
        Uint32 nodeCnt = pTab->getFragmentNodes(partId, &nodeIds[0], MaxReplicas);
        
        if (nodeCnt)
        {
          for (Uint32 n = 0; n < nodeCnt; n++)
          {
            if (n > 0)
              printf(",");
            printf("%u", nodeIds[n]);
          }
          printf("\t");
        }
        else
        {
          printf("-\t");
        }
      }
        
      printf("\n");
    }
  } while(0);
  pTrans->close();
}
开发者ID:，项目名称:，代码行数:101，代码来源:


注：本文中的NdbConnection::close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。