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MySQL 5.1: mysql/src/5.1-dbg/storage/ndb/include/mgmcommon/ConfigRetriever.hpp Source File
mysql/src/5.1-dbg/storage/ndb/include/mgmcommon/ConfigRetriever.hpp

00001 /* Copyright (C) 2003 MySQL AB
00002 
00003    This program is free software; you can redistribute it and/or modify
00004    it under the terms of the GNU General Public License as published by
00005    the Free Software Foundation; either version 2 of the License, or
00006    (at your option) any later version.
00007 
00008    This program is distributed in the hope that it will be useful,
00009    but WITHOUT ANY WARRANTY; without even the implied warranty of
00010    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00011    GNU General Public License for more details.
00012 
00013    You should have received a copy of the GNU General Public License
00014    along with this program; if not, write to the Free Software
00015    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
00016 
00017 #ifndef ConfigRetriever_H
00018 #define ConfigRetriever_H
00019 
00020 #include <ndb_types.h>
00021 #include <mgmapi.h>
00022 #include <BaseString.hpp>
00023 
00028 class ConfigRetriever {
00029 public:
00030   ConfigRetriever(const char * _connect_string,
00031                   Uint32 version, Uint32 nodeType);
00032   ~ConfigRetriever();
00033 
00034   int do_connect(int no_retries, int retry_delay_in_seconds, int verbose);
00035   int disconnect();
00036   
00048   struct ndb_mgm_configuration * getConfig();
00049   
00050   void resetError();
00051   int hasError();
00052   const char * getErrorString();
00053 
00057   Uint32 allocNodeId(int no_retries, int retry_delay_in_seconds);
00058 
00059   int setNodeId(Uint32 nodeid);
00060 
00064   struct ndb_mgm_configuration * getConfig(NdbMgmHandle handle);
00065   
00069   struct ndb_mgm_configuration * getConfig(const char * file);
00070 
00074   bool verifyConfig(const struct ndb_mgm_configuration *, Uint32 nodeid);
00075 
00076   Uint32 get_mgmd_port() const;
00077   const char *get_mgmd_host() const;
00078   const char *get_connectstring(char *buf, int buf_sz) const;
00079   NdbMgmHandle get_mgmHandle() { return m_handle; };
00080   NdbMgmHandle* get_mgmHandlePtr() { return &m_handle; };
00081   void end_session(bool end) { m_end_session= end; };
00082 
00083   Uint32 get_configuration_nodeid() const;
00084 private:
00085   BaseString errorString;
00086   enum ErrorType {
00087     CR_NO_ERROR = 0,
00088     CR_ERROR = 1,
00089     CR_RETRY = 2
00090   };
00091   ErrorType latestErrorType;
00092   
00093   void setError(ErrorType, const char * errorMsg);
00094   
00095   Uint32      _ownNodeId;
00096   bool m_end_session;
00097 
00098   /*
00099   Uint32      m_mgmd_port;
00100   const char *m_mgmd_host;
00101   */
00102 
00103   Uint32 m_version;
00104   Uint32 m_node_type;
00105   NdbMgmHandle m_handle;
00106 };
00107 
00108 #endif
00109 
00110
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