text: // signal_handlers.h
  
  /**
  *    Copyright (C) 2010 10gen 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.
  */
  
  #pragma once
  
  namespace mongo {
  
  enum class LogFileStatus {
      kNeedToRotateLogFile,
      kNoLogFileToRotate,
  };
  
  /**
   * Sets up handlers for signals and other events like terminate and new_handler.
   *
   * This must be called very early in main, before runGlobalInitializers().
   */
  void setupSignalHandlers();
  
  /**
   * Starts the thread to handle asynchronous signals.
   *
   * This must be the first thread started from the main thread. Call this immediately after
   * initializeServerGlobalState().
   */
  void startSignalProcessingThread(LogFileStatus rotate = LogFileStatus::kNeedToRotateLogFile);
  
  /*
   * Uninstall the Control-C handler
   *
   * Windows Only
   * Used by nt services to remove the Control-C handler after the system knows it is running
   * as a service, and not as a console program.
   */
  void removeControlCHandler();
  
  }  // namespace mongo
  