嵌入式MYSQL服務器實現
// EmbeddedMySQL.h: interface for the CEmbeddedMySQL class.
//
//////////////////////////////////////////////////////////////////////
#if !defined(AFX_EMBEDDEDMYSQL_H__516724E2_889C_4899_9DAE_330CD4C5954F__INCLUDED_)
#define AFX_EMBEDDEDMYSQL_H__516724E2_889C_4899_9DAE_330CD4C5954F__INCLUDED_
www.2cto.com
#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
#include <mysql.h>
#include <string>
#include "StdString.h"
using namespace std;
//嵌入式MYSQL服務器
class CEmbeddedMySQL
{
public:
CEmbeddedMySQL();
virtual ~CEmbeddedMySQL();
static bool StartupEmbeddedServer();
static void ShutdownEmbeddedServer();
bool Open( const string &svr, const string &usr, const string &pwd, const string &db);
void Close();
www.2cto.com
bool ResetDB();
void Set( const string &sField, const string &sValue );
void Set( const string &sField, double dValue );
void Set( const string &sField, long nValue );
void Set( const string &sField, int nValue );
void Set( const string &sField, BYTE *pBuf, int nLen );
void SetNull( const string &sField );
void registerOutParameter( const string &sField, char cType );
// void SetRecord( const string &sField, const string &sTableName, const string &sTypeName, CStdRecord &Record );
void Cmd(const char *cmd,...);
bool More();
long Exec();
// bool SelectInto(CStdRecord *pRecord,bool bCreateHead=true);
double GetDouble(int id);
double GetDouble(const string &name);
long GetLong(int id);
long GetLong(const string &name);
string Get(int id);
string Get(const string &name);
string GetLastErrMsg();
char* GetSql();
bool MoreForUpdate();
bool SetBuffer( int nFieldIndex, BYTE *pBuf, long nSize );
bool SetBuffer( const string &sField, BYTE *pBuf, long nSize );
bool GetBuffer( const string &sField, BYTE *pBuf, long &nSize );
bool GetBuffer( int nFieldIndex, BYTE *pBuf, long &nSize );
long GetDataSize( const string &sField );
long GetDataSize( int nFieldIndex );
long GetActualSize( const string &sField );
long GetActualSize( int nFieldIndex );
www.2cto.com
void ClearSql();
long GetColIndex( const string &sField );
string GetColName( int nFiledIndex );
string GetColType( int index );
int GetNumCols();
string GetHeadScript();
int row_getsize();
bool row_gethead( string &sHead );
bool row_more( char *pData, int &nSize );
void SetAutoCommit( bool autoCommit );
void RollBack();
void Commit();
bool IsDead();
bool SetParam( int nType, const string &sVal );
protected:
void WriteSQLErrLog();
// 獲取過程返回值
string GetStorageProReturnValue(const string &name);
void CopyRowData(char * pData,MYSQL_ROW row); // added by cailei
CStdString GetCurTime(time_t nTime=0);
long GetCurDate(time_t nTime=0);
www.2cto.com
MYSQL *m_hMySQL;
MYSQL_RES *m_pRes;
MYSQL_ROW m_Row;
MYSQL_FIELD *m_pFields;
long m_nRowSize;
bool m_bRegParam; // 是否注冊了過程返回變量
protected:
string m_sSvr;
string m_sUser;
string m_sPwd;
string m_sDB;
string m_sUserMode;
bool m_bReopen; //是系統重新打開連接
int m_nStatus; // 0 :SQL 空閒狀態 1 :有SQL語句等待執行 2:有結果數據待取出
int m_nCount; //結果集記錄數量
int m_nCode; //執行返回碼
int m_nSQLSize; //默認是16K
string m_sErr; //錯誤消息
char *m_pSQL; //SQL語句
string m_sSrc; //調用源
bool m_bError; //語句執行是否出錯
int m_nDBType; //驅動類型
void *m_pUniDBRecv; //保留
bool m_bTran; //事務標志
void *m_pReq; www.2cto.com
byte *m_pReqBuf;
int m_nReqSize;
bool m_bDebug;
};
#endif // !defined(AFX_EMBEDDEDMYSQL_H__516724E2_889C_4899_9DAE_330CD4C5954F__INCLUDED_)
作者 蔡磊
