text: /**
   *    Copyright (C) 2015 MongoDB, Inc.
   *
   *    This program is free software: you can redistribute it and/or  modify
   *    it under the terms of the GNU Affero General Public License, version 3,
   *    as published by the Free Software Foundation.
   *
   *    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 Affero General Public License for more details.
   *
   *    You should have received a copy of the GNU Affero General Public License
   *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
   *
   *    As a special exception, the copyright holders give permission to link the
   *    code of portions of this program with the OpenSSL library under certain
   *    conditions as described in each individual source file and distribute
   *    linked combinations including the program with the OpenSSL library. You
   *    must comply with the GNU Affero General Public License in all respects for
   *    all of the code used other than as permitted herein. If you modify file(s)
   *    with this exception, you may extend this exception to your version of the
   *    file(s), but you are not obligated to do so. If you do not wish to do so,
   *    delete this exception statement from your version. If you delete this
   *    exception statement from all source files in the program, then also delete
   *    it in the license file.
   */
  
  #include "mongo/platform/basic.h"
  
  #include "mongo/base/counter.h"
  #include "mongo/db/commands/server_status_metric.h"
  #include "mongo/db/curop.h"
  #include "mongo/db/operation_context.h"
  
  namespace mongo {
  namespace {
  Counter64 returnedCounter;
  Counter64 insertedCounter;
  Counter64 updatedCounter;
  Counter64 deletedCounter;
  Counter64 scannedCounter;
  Counter64 scannedObjectCounter;
  
  ServerStatusMetricField<Counter64> displayReturned("document.returned", &returnedCounter);
  ServerStatusMetricField<Counter64> displayUpdated("document.updated", &updatedCounter);
  ServerStatusMetricField<Counter64> displayInserted("document.inserted", &insertedCounter);
  ServerStatusMetricField<Counter64> displayDeleted("document.deleted", &deletedCounter);
  ServerStatusMetricField<Counter64> displayScanned("queryExecutor.scanned", &scannedCounter);
  ServerStatusMetricField<Counter64> displayScannedObjects("queryExecutor.scannedObjects",
                                                           &scannedObjectCounter);
  
  Counter64 scanAndOrderCounter;
  Counter64 writeConflictsCounter;
  
  ServerStatusMetricField<Counter64> displayScanAndOrder("operation.scanAndOrder",
                                                         &scanAndOrderCounter);
  ServerStatusMetricField<Counter64> displayWriteConflicts("operation.writeConflicts",
                                                           &writeConflictsCounter);
  
  }  // namespace
  
  void recordCurOpMetrics(OperationContext* opCtx) {
      const OpDebug& debug = CurOp::get(opCtx)->debug();
      if (debug.nreturned > 0)
          returnedCounter.increment(debug.nreturned);
      if (debug.ninserted > 0)
          insertedCounter.increment(debug.ninserted);
      if (debug.nMatched > 0)
          updatedCounter.increment(debug.nMatched);
      if (debug.ndeleted > 0)
          deletedCounter.increment(debug.ndeleted);
      if (debug.keysExamined > 0)
          scannedCounter.increment(debug.keysExamined);
      if (debug.docsExamined > 0)
          scannedObjectCounter.increment(debug.docsExamined);
  
      if (debug.hasSortStage)
          scanAndOrderCounter.increment();
      if (debug.writeConflicts)
          writeConflictsCounter.increment(debug.writeConflicts);
  }
  
  }  // namespace mongo
  