polardbxengine/storage/ndb/include/kernel/signaldata/StopReq.hpp

/*
   Copyright (c) 2003, 2019, 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, version 2.0,
   as published by the Free Software Foundation.

   This program is also distributed with certain software (including
   but not limited to OpenSSL) that is licensed under separate terms,
   as designated in a particular file or component or in included license
   documentation.  The authors of MySQL hereby grant you an additional
   permission to link the program and your derivative works with the
   separately licensed software that they have included with MySQL.

   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, version 2.0, 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
*/

#ifndef STOP_REQ_HPP
#define STOP_REQ_HPP

#include "SignalData.hpp"

#define JAM_FILE_ID 188


class StopReq 
{
  /**
   * Reciver(s)
   */
  friend class Ndbcntr;

  /**
   * Sender
   */
  friend class MgmtSrvr;

public:
  STATIC_CONST (SignalLength = 9);
  STATIC_CONST( SignalLength_v1 = 9 + NdbNodeBitmask48::Size);
  
public:
  Uint32 senderRef;
  Uint32 senderData;
  
  Uint32 requestInfo;
  Uint32 singleuser;          // Indicates whether or not to enter 
                              // single user mode.
                              // Only in conjunction with system stop
  Uint32 singleUserApi;       // allowed api in singleuser

  Int32 apiTimeout;           // Timeout before api transactions are refused
  Int32 transactionTimeout;   // Timeout before transactions are aborted
  Int32 readOperationTimeout; // Timeout before read operations are aborted
  Int32 operationTimeout;     // Timeout before all operations are aborted

  // First two words is part of v1 signal, else sent as first section.
  Uint32 nodes[NdbNodeBitmask::Size];

  static void setSystemStop(Uint32 & requestInfo, bool value);
  static void setPerformRestart(Uint32 & requestInfo, bool value);
  static void setNoStart(Uint32 & requestInfo, bool value);
  static void setInitialStart(Uint32 & requestInfo, bool value);
  /**
   * Don't perform "graceful" shutdown/restart...
   */
  static void setStopAbort(Uint32 & requestInfo, bool value);
  static void setStopNodes(Uint32 & requestInfo, bool value);

  static bool getSystemStop(const Uint32 & requestInfo);
  static bool getPerformRestart(const Uint32 & requestInfo);
  static bool getNoStart(const Uint32 & requestInfo);
  static bool getInitialStart(const Uint32 & requestInfo);
  static bool getStopAbort(const Uint32 & requestInfo);
  static bool getStopNodes(const Uint32 & requestInfo);
};

struct StopConf
{
  STATIC_CONST( SignalLength = 2 );
  Uint32 senderData;
  union {
    Uint32 nodeState;
    Uint32 nodeId;
  };
};

class StopRef 
{
  /**
   * Reciver(s)
   */
  friend class MgmtSrvr;
  
  /**
   * Sender
   */
  friend class Ndbcntr;

public:
  STATIC_CONST( SignalLength = 3 );
  
  enum ErrorCode {
    OK = 0,
    NodeShutdownInProgress = 1,
    SystemShutdownInProgress = 2,
    NodeShutdownWouldCauseSystemCrash = 3,
    TransactionAbortFailed = 4,
    UnsupportedNodeShutdown = 5,
    MultiNodeShutdownNotMaster = 6
  };
  
public:
  Uint32 senderData;
  Uint32 errorCode;
  Uint32 masterNodeId;
};

inline
bool
StopReq::getSystemStop(const Uint32 & requestInfo)
{
  return requestInfo & 1;
}

inline
bool
StopReq::getPerformRestart(const Uint32 & requestInfo)
{
  return requestInfo & 2;
}

inline
bool
StopReq::getNoStart(const Uint32 & requestInfo)
{
  return requestInfo & 4;
}

inline
bool
StopReq::getInitialStart(const Uint32 & requestInfo)
{
  return requestInfo & 8;
}

inline
bool
StopReq::getStopAbort(const Uint32 & requestInfo)
{
  return requestInfo & 32;
}

inline
bool
StopReq::getStopNodes(const Uint32 & requestInfo)
{
  return requestInfo & 64;
}


inline
void
StopReq::setSystemStop(Uint32 & requestInfo, bool value)
{
  if(value)
    requestInfo |= 1;
  else
    requestInfo &= ~1;
}

inline
void 
StopReq::setPerformRestart(Uint32 & requestInfo, bool value)
{
  if(value)
    requestInfo |= 2;
  else
    requestInfo &= ~2;
}

inline
void 
StopReq::setNoStart(Uint32 & requestInfo, bool value)
{
  if(value)
    requestInfo |= 4;
  else
    requestInfo &= ~4;
}

inline
void
StopReq::setInitialStart(Uint32 & requestInfo, bool value)
{
  if(value)
    requestInfo |= 8;
  else
    requestInfo &= ~8;
}

inline
void
StopReq::setStopAbort(Uint32 & requestInfo, bool value)
{
  if(value)
    requestInfo |= 32;
  else
    requestInfo &= ~32;
}

inline
void
StopReq::setStopNodes(Uint32 & requestInfo, bool value)
{
  if(value)
    requestInfo |= 64;
  else
    requestInfo &= ~64;
}


#undef JAM_FILE_ID

#endif