packedsignal.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 PACKED_SIGNAL_HPP
#define PACKED_SIGNAL_HPP

#include "SignalData.hpp"

// -------- CODES FOR COMPRESSED SIGNAL (PACKED_SIGNAL) -------
#define ZCOMMIT 0
#define ZCOMPLETE 1
#define ZCOMMITTED 2
#define ZCOMPLETED 3
#define ZLQHKEYCONF 4
#define ZREMOVE_MARKER 5

class PackedSignal {

  static Uint32 getSignalType(Uint32 data);

  /**
   * For printing
   */
  friend bool printPACKED_SIGNAL(FILE * output, const Uint32 * theData, Uint32 len, Uint16 receiverBlockNo);
};

inline
Uint32 PackedSignal::getSignalType(Uint32 data) { return data >> 28; }

#endif