mysql5/mysql-5.7.27/storage/ndb/tools/ndbinfo_select_all.cpp

/*
   Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; version 2 of the License.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
*/


#include <ndb_global.h>
#include <ndb_opts.h>

#include <NdbApi.hpp>
#include <NdbOut.hpp>
#include "../src/ndbapi/NdbInfo.hpp"
#include <NdbSleep.h>

static int loops = 1;
static int delay = 5;
const char *load_default_groups[]= { "mysql_cluster",0 };

static struct my_option my_long_options[] =
{
  NDB_STD_OPTS("ndbinfo_select_all"),
  { "loops", 'l', "Run same select several times",
    (uchar**) &loops, (uchar**) &loops, 0,
    GET_INT, REQUIRED_ARG, loops, 0, 0, 0, 0, 0 },
  { "delay", 256, "Delay between loops (in seconds)",
    (uchar**) &delay, (uchar**) &delay, 0,
    GET_INT, REQUIRED_ARG, delay, 0, 0, 0, 0, 0 },
  { 0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}
};

static void short_usage_sub(void)
{
  ndb_short_usage_sub(NULL);
}

static void usage()
{
  ndb_usage(short_usage_sub, load_default_groups, my_long_options);
}

int
main(int argc, char** argv)
{
  NDB_INIT(argv[0]);
  ndb_opt_set_usage_funcs(short_usage_sub, usage);
  ndb_load_defaults(NULL,load_default_groups,&argc,&argv);
  int ho_error;
#ifndef DBUG_OFF
  opt_debug= "d:t:O,/tmp/ndbinfo_select_all.trace";
#endif
  if ((ho_error=handle_options(&argc, &argv, my_long_options,
			       ndb_std_get_one_option)))
    return 1;

  if (argv[0] == 0)
  {
    return 0;
  }

  Ndb_cluster_connection con(opt_ndb_connectstring, opt_ndb_nodeid);
  con.set_name("ndbinfo_select_all");
  if(con.connect(12, 5, 1) != 0)
  {
    ndbout << "Unable to connect to management server." << endl;
    return 1;
  }

  if (con.wait_until_ready(30,0) < 0)
  {
    ndbout << "Cluster nodes not ready in 30 seconds." << endl;
    return 1;
  }

  NdbInfo info(&con, "");
  if (!info.init())
  {
    ndbout << "Failed to init ndbinfo!" << endl;
    return 1;
  }

  const Uint32 batchsizerows = 32;

  for (int ll = 0; loops == 0 || ll < loops; ll++)
  {
    for (int ii = 0; argv[ii] != 0; ii++)
    {
      ndbout << "== " << argv[ii] << " ==" << endl;

      const NdbInfo::Table * pTab = 0;
      int res = info.openTable(argv[ii], &pTab);
      if (res != 0)
      {
        ndbout << "Failed to open: " << argv[ii] << ", res: " << res << endl;
        continue;
      }

      unsigned cols = pTab->columns();
      for (unsigned i = 0; i<cols; i++)
      {
        const NdbInfo::Column * pCol = pTab->getColumn(i);
        ndbout << pCol->m_name.c_str() << "\t";
      }
      ndbout << endl;

      NdbInfoScanOperation * pScan = 0;
      res= info.createScanOperation(pTab, &pScan, batchsizerows);
      if (res != 0)
      {
        ndbout << "Failed to createScan: " << argv[ii] << ", res: " << res<< endl;
        info.closeTable(pTab);
        continue;
      }

      if (pScan->readTuples() != 0)
      {
        ndbout << "scanOp->readTuples failed" << endl;
        return 1;
      }

      Vector<const NdbInfoRecAttr*> recAttrs;
      for (unsigned i = 0; i<cols; i++)
      {
        const NdbInfoRecAttr* pRec = pScan->getValue(i);
        if (pRec == 0)
        {
          ndbout << "Failed to getValue(" << i << ")" << endl;
          return 1;
        }
        recAttrs.push_back(pRec);
      }

      if(pScan->execute() != 0)
      {
        ndbout << "scanOp->execute failed" << endl;
        return 1;
      }

      while(pScan->nextResult() == 1)
      {
        for (unsigned i = 0; i<cols; i++)
        {
          if (recAttrs[i]->isNULL())
          {
            ndbout << "NULL";
          }
          else
          {
            switch(pTab->getColumn(i)->m_type){
            case NdbInfo::Column::String:
              ndbout << recAttrs[i]->c_str();
              break;
            case NdbInfo::Column::Number:
              ndbout << recAttrs[i]->u_32_value();
              break;
            case NdbInfo::Column::Number64:
              ndbout << recAttrs[i]->u_64_value();
              break;
            }
          }
          ndbout << "\t";
        }
        ndbout << endl;
      }

      info.releaseScanOperation(pScan);
      info.closeTable(pTab);
    }

    if ((loops == 0 || ll + 1 != loops) && delay > 0)
    {
      NdbSleep_SecSleep(delay);
    }
  }
  return 0;
}

template class Vector<const NdbInfoRecAttr*>;