release/src/router/mysql/storage/ndb/include/kernel/NodeInfo.hpp

   1 /* Copyright (c) 2003-2005, 2007 MySQL AB
   2
   3    This program is free software; you can redistribute it and/or modify
   4    it under the terms of the GNU General Public License as published by
   5    the Free Software Foundation; version 2 of the License.
   6
   7    This program is distributed in the hope that it will be useful,
   8    but WITHOUT ANY WARRANTY; without even the implied warranty of
   9    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10    GNU General Public License for more details.
  11
  12    You should have received a copy of the GNU General Public License
  13    along with this program; if not, write to the Free Software
  14    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA */
  15
  16 #ifndef NODE_INFO_HPP
  17 #define NODE_INFO_HPP
  18
  19 #include <NdbOut.hpp>
  20 #include <mgmapi_config_parameters.h>
  21
  22 class NodeInfo {
  23 public:
  24   NodeInfo();
  25
  26   /**
  27    * NodeType
  28    */
  29   enum NodeType {
  30     DB  = NODE_TYPE_DB,      ///< Database node
  31     API = NODE_TYPE_API,      ///< NDB API node
  32     MGM = NODE_TYPE_MGM,      ///< Management node  (incl. NDB API)
  33     INVALID = 255 ///< Invalid type
  34   };
  35   NodeType getType() const;
  36
  37   Uint32 m_version;       ///< Node version
  38   Uint32 m_signalVersion; ///< Signal version
  39   Uint32 m_type;          ///< Node type
  40   Uint32 m_connectCount;  ///< No of times connected
  41   bool   m_connected;     ///< Node is connected
  42   Uint32 m_heartbeat_cnt; ///< Missed heartbeats
  43
  44   friend NdbOut & operator<<(NdbOut&, const NodeInfo&);
  45 };
  46
  47
  48 inline
  49 NodeInfo::NodeInfo(){
  50   m_version = 0;
  51   m_signalVersion = 0;
  52   m_type = INVALID;
  53   m_connectCount = 0;
  54   m_heartbeat_cnt= 0;
  55 }
  56
  57 inline
  58 NodeInfo::NodeType
  59 NodeInfo::getType() const {
  60   return (NodeType)m_type;
  61 }
  62
  63 inline
  64 NdbOut &
  65 operator<<(NdbOut& ndbout, const NodeInfo & info){
  66   ndbout << "[NodeInfo: ";
  67   switch(info.m_type){
  68   case NodeInfo::DB:
  69     ndbout << "DB";
  70     break;
  71   case NodeInfo::API:
  72     ndbout << "API";
  73     break;
  74   case NodeInfo::MGM:
  75     ndbout << "MGM";
  76     break;
  77   case NodeInfo::INVALID:
  78     ndbout << "INVALID";
  79     break;
  80   default:
  81     ndbout << "<Unknown: " << info.m_type << ">";
  82     break;
  83   }
  84
  85   ndbout << " version: " << info.m_version
  86          << " sig. version; " << info.m_signalVersion
  87          << " connect count: " << info.m_connectCount
  88          << "]";
  89   return ndbout;
  90 }
  91
  92 struct NodeVersionInfo
  93 {
  94   STATIC_CONST( DataLength = 6 );
  95   struct
  96   {
  97     Uint32 m_min_version;
  98     Uint32 m_max_version;
  99   } m_type [3]; // Indexed as NodeInfo::Type
 100 };
 101
 102 #endif