simulatedblock.hpp

mysql-5.0.22.tar.gz源码包

/* Copyright (C) 2003 MySQL AB

   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; either version 2 of the License, or
   (at your option) any later version.

   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */

#ifndef SIMULATEDBLOCK_H
#define SIMULATEDBLOCK_H

#include <NdbTick.h>
#include <kernel_types.h>
#include <ndb_version.h>
#include <ndb_limits.h>

#include "VMSignal.hpp"
#include <RefConvert.hpp>
#include <BlockNumbers.h>
#include <GlobalSignalNumbers.h>

#include "pc.hpp"
#include <NodeInfo.hpp>
#include <NodeState.hpp>
#include "GlobalData.hpp"
#include "LongSignal.hpp"
#include <SignalLoggerManager.hpp>

#include <ErrorReporter.hpp>
#include <ErrorHandlingMacros.hpp>

#include "DLList.hpp"
#include "ArrayPool.hpp"
#include "DLHashTable.hpp"
#include "Callback.hpp"
#include "SafeCounter.hpp"
#include "MetaData.hpp"

#include <mgmapi.h>
#include <mgmapi_config_parameters.h>
#include <mgmapi_config_parameters_debug.h>
#include <kernel_config_parameters.h>
#include <Configuration.hpp>

#include <signaldata/ReadConfig.hpp>
#include <signaldata/UpgradeStartup.hpp>


/**
 * Something for filesystem access
 */
struct  NewBaseAddrBits              /* 32 bits */
{
  unsigned int     q               : 4;    /* Highest index - 2log */
  /* Strings are treated as 16 bit indexed        */
  /* variables with the number of characters in   */
  /* index 0, byte 0                              */
  unsigned int     v               : 3;    /* Size in bits - 2log */
  unsigned int     unused : 25 ;
};

typedef struct NewVar
{
  Uint32 *              WA;
  Uint32                nrr;
  Uint32                ClusterSize;    /* Real Cluster size    */
  NewBaseAddrBits       bits;
} NewVARIABLE;  /* 128 bits */

class SimulatedBlock {
  friend class SafeCounter;
  friend class SafeCounterManager;
  friend struct UpgradeStartup;
public:
  friend class BlockComponent;
  virtual ~SimulatedBlock();
  
protected:
  /**
   * Constructor
   */
  SimulatedBlock(BlockNumber blockNumber,
                 const class Configuration & theConfiguration); 

  /**********************************************************
   * Handling of execFunctions
   */
  typedef void (SimulatedBlock::* ExecFunction)(Signal* signal);
  void addRecSignalImpl(GlobalSignalNumber g, ExecFunction fun, bool f =false);
  void installSimulatedBlockFunctions();
  ExecFunction theExecArray[MAX_GSN+1];
public:
  /**
   * 
   */
  inline void executeFunction(GlobalSignalNumber gsn, Signal* signal);
public:
  typedef void (SimulatedBlock::* CallbackFunction)(class Signal*, 
						    Uint32 callbackData,
						    Uint32 returnCode);
  struct Callback {
    CallbackFunction m_callbackFunction;
    Uint32 m_callbackData;
  };
protected:
  static Callback TheEmptyCallback;
  void execute(Signal* signal, Callback & c, Uint32 returnCode);
  
  
  /**********************************************************
   * Send signal - dialects
   */

  void sendSignal(BlockReference ref, 
		  GlobalSignalNumber gsn, 
                  Signal* signal, 
		  Uint32 length, 
		  JobBufferLevel jbuf ) const ;

  void sendSignal(NodeReceiverGroup rg,
		  GlobalSignalNumber gsn, 
                  Signal* signal, 
		  Uint32 length, 
		  JobBufferLevel jbuf ) const ;

  void sendSignal(BlockReference ref, 
		  GlobalSignalNumber gsn, 
                  Signal* signal, 
		  Uint32 length, 
		  JobBufferLevel jbuf,
		  LinearSectionPtr ptr[3],
		  Uint32 noOfSections) const ;
  
  void sendSignal(NodeReceiverGroup rg, 
		  GlobalSignalNumber gsn, 
                  Signal* signal, 
		  Uint32 length, 
		  JobBufferLevel jbuf,
		  LinearSectionPtr ptr[3],
		  Uint32 noOfSections) const ;

  // Send multiple signal with delay. In this VM the jobbufffer level has 
  // no effect on on delayed signals
  //
  void sendSignalWithDelay(BlockReference ref, 
			   GlobalSignalNumber gsn, 
                           Signal* signal,
                           Uint32 delayInMilliSeconds, 
			   Uint32 length) const ;

  void EXECUTE_DIRECT(Uint32 block, 
		      Uint32 gsn, 
		      Signal* signal, 
		      Uint32 len);
  
  class SectionSegmentPool& getSectionSegmentPool();
  void releaseSections(Signal* signal);

  /**********************************************************
   * Fragmented signals
   */
  
  /**
   * Assemble fragments
   *
   * @return true if all fragments has arrived
   *         false otherwise
   */
  bool assembleFragments(Signal * signal);
  
  void sendFragmentedSignal(BlockReference ref, 
			    GlobalSignalNumber gsn, 
			    Signal* signal, 
			    Uint32 length, 
			    JobBufferLevel jbuf,
			    Callback & = TheEmptyCallback,
			    Uint32 messageSize = 240);

  void sendFragmentedSignal(NodeReceiverGroup rg, 
			    GlobalSignalNumber gsn, 
			    Signal* signal, 
			    Uint32 length, 
			    JobBufferLevel jbuf,
			    Callback & = TheEmptyCallback,
			    Uint32 messageSize = 240);

  void sendFragmentedSignal(BlockReference ref, 
			    GlobalSignalNumber gsn, 
			    Signal* signal, 
			    Uint32 length, 
			    JobBufferLevel jbuf,
			    LinearSectionPtr ptr[3],
			    Uint32 noOfSections,
			    Callback &,
			    Uint32 messageSize = 240);

  void sendFragmentedSignal(NodeReceiverGroup rg, 
			    GlobalSignalNumber gsn, 
			    Signal* signal, 
			    Uint32 length, 
			    JobBufferLevel jbuf,
			    LinearSectionPtr ptr[3],
			    Uint32 noOfSections,
			    Callback &,
			    Uint32 messageSize = 240);

  /**********************************************************
   * Fragmented signals structures
   */

  /**
   * Struct used when assembling fragmented long signals at receiver side
   */
  struct FragmentInfo {
    FragmentInfo(Uint32 fragId, Uint32 sender);
    
    Uint32 m_senderRef;
    Uint32 m_fragmentId;
    Uint32 m_sectionPtrI[3];
    union {
      Uint32 nextPool;
      Uint32 nextHash;
    };
    Uint32 prevHash;
    
    inline bool equal(FragmentInfo & p) const {
      return m_senderRef == p.m_senderRef && m_fragmentId == p.m_fragmentId;
    }
    
    inline Uint32 hashValue() const {
      return m_senderRef + m_fragmentId ;
    }
  }; // sizeof() = 32 bytes
  
  /**
   * Struct used when sending fragmented signals
   */
  struct FragmentSendInfo {
    FragmentSendInfo();
    
    enum Status {
      SendNotComplete = 0,
      SendComplete    = 1
    };
    Uint8  m_status;
    Uint8  m_prio;
    Uint16  m_fragInfo;
    Uint16 m_gsn;
    Uint16 m_messageSize; // Size of each fragment
    Uint32 m_fragmentId;
    union {
      Ptr<struct SectionSegment> m_segmented;
      LinearSectionPtr m_linear;
    } m_sectionPtr[3];
    LinearSectionPtr m_theDataSection;
    NodeReceiverGroup m_nodeReceiverGroup; // 3
    Callback m_callback;
    union  {
      Uint32 nextPool;
      Uint32 nextList;
    };
    Uint32 prevList;
  };
  
  /**
   * setupFragmentSendInfo
   *   Setup a struct to be used with sendSignalFragment
   *   Used by sendFragmentedSignal
   */
  bool sendFirstFragment(FragmentSendInfo & info,
			 NodeReceiverGroup rg, 
			 GlobalSignalNumber gsn, 
			 Signal* signal, 
			 Uint32 length, 
			 JobBufferLevel jbuf,
			 LinearSectionPtr ptr[3],
			 Uint32 noOfSections,
			 Uint32 messageSize = 240);
  
  bool sendFirstFragment(FragmentSendInfo & info,
			 NodeReceiverGroup rg, 
			 GlobalSignalNumber gsn, 
			 Signal* signal, 
			 Uint32 length, 
			 JobBufferLevel jbuf,
			 Uint32 messageSize = 240);
  
  /**
   * Send signal fragment
   *
   * @see sendFragmentedSignal
   */
  void sendNextSegmentedFragment(Signal* signal, FragmentSendInfo & info);

  /**
   * Send signal fragment
   *
   * @see sendFragmentedSignal
   */
  void sendNextLinearFragment(Signal* signal, FragmentSendInfo & info);
  
  BlockNumber    number() const;
  BlockReference reference() const;
  NodeId         getOwnNodeId() const;

  /**
   * Refresh Watch Dog in initialising code
   *
   */
  void refresh_watch_dog();

  /**
   * Prog error
   * This function should be called when this node should be shutdown
   * If the cause of the shutdown is known use extradata to add an 
   * errormessage describing the problem
   */
  void progError(int line, int err_code, const char* extradata=NULL) const ;
private:
  void  signal_error(Uint32, Uint32, Uint32, const char*, int) const ;
  const NodeId         theNodeId;
  const BlockNumber    theNumber;
  const BlockReference theReference;
  
protected:
  NewVARIABLE* allocateBat(int batSize);
  void freeBat();
  static const NewVARIABLE* getBat    (BlockNumber blockNo);
  static Uint16             getBatSize(BlockNumber blockNo);
  
  static BlockReference calcTcBlockRef   (NodeId aNode);
  static BlockReference calcLqhBlockRef  (NodeId aNode);
  static BlockReference calcAccBlockRef  (NodeId aNode);
  static BlockReference calcTupBlockRef  (NodeId aNode);
  static BlockReference calcTuxBlockRef  (NodeId aNode);
  static BlockReference calcDihBlockRef  (NodeId aNode);
  static BlockReference calcQmgrBlockRef (NodeId aNode);
  static BlockReference calcDictBlockRef (NodeId aNode);
  static BlockReference calcNdbCntrBlockRef (NodeId aNode);
  static BlockReference calcTrixBlockRef (NodeId aNode);
  static BlockReference calcBackupBlockRef (NodeId aNode);
  static BlockReference calcSumaBlockRef (NodeId aNode);

  static BlockReference calcApiClusterMgrBlockRef (NodeId aNode);

  /** 
   * allocRecord
   * Allocates memory for the datastructures where ndb keeps the data
   *
   */
  void* allocRecord(const char * type, size_t s, size_t n, bool clear = true);
  
  /**
   * Deallocate record
   *
   * NOTE: Also resets pointer
   */
  void deallocRecord(void **, const char * type, size_t s, size_t n);
  
  /**
   * General info event (sent to cluster log)
   */
  void infoEvent(const char * msg, ...) const ;
  void warningEvent(const char * msg, ...) const ;
  
  /**
   * The configuration object
   */
  const class Configuration & theConfiguration;

  /**
   * Get node state
   */
  const NodeState & getNodeState() const;

  /**
   * Get node info
   */
  const NodeInfo & getNodeInfo(NodeId nodeId) const;
  NodeInfo & setNodeInfo(NodeId);

  /**********************
   * Xfrm stuff
   */
  
  /**