Add SQLite Wrapper

sqlite_wrapper.cpp

@@ -0,0 +1,62 @@
+#include "sqlite_wrapper.h"
+#include <cstring>
+#include <cstdio>
+
+SQLStatement::SQLStatement()
+{
+    _st=nullptr;
+}
+
+SQLStatement::~SQLStatement()
+{
+    sqlite3_finalize(_st);
+}
+
+void SQLStatement::_setStmt(sqlite3_stmt* p)
+{
+    _st=p;
+}
+
+sqlite3_stmt* SQLStatement::_getStmt() const
+{
+    return _st;
+}
+
+
+SQLDB::SQLDB()
+{
+    _db=nullptr;
+}
+
+SQLDB::~SQLDB()
+{
+    sqlite3_close(_db);
+}
+
+int SQLDB::open(const std::string& filename)
+{
+    return sqlite3_open(filename.c_str(),&_db);
+}
+
+SQLStatement SQLDB::prepare(const std::string& SQLCommand)
+{
+    SQLStatement stmt;
+    sqlite3_stmt* pstmt=nullptr;
+    int ret=sqlite3_prepare(_db,SQLCommand.c_str(),SQLCommand.size(),&pstmt,NULL);
+    if(ret<0) return stmt;
+    stmt._setStmt(pstmt);
+    return stmt;
+}
+
+int SQLDB::step(const SQLStatement& Statement)
+{
+    return sqlite3_step(Statement._getStmt());
+}
+
+int SQLDB::exec(const std::string& SQLCommand,SQLCallback callback,void* param)
+{
+    char* errmsg=nullptr;
+    int ret=sqlite3_exec(_db,SQLCommand.c_str(),callback,param,&errmsg);
+    printf("ErrMsg: %s\n",errmsg);
+    return ret;
+}

sqlite_wrapper.h

@@ -0,0 +1,35 @@
+#pragma once
+#include "sqlite/sqlite3.h"
+#include <string>
+
+class SQLStatement
+{
+public:
+    bool isReady();
+    SQLStatement();
+    ~SQLStatement();
+
+    void _setStmt(sqlite3_stmt*);
+    sqlite3_stmt* _getStmt() const;
+private:
+    sqlite3_stmt* _st;
+};
+
+
+using SQLCallback = int (*)(void* ExParam,int colNum,char** colVal,char** colName);
+
+class SQLDB
+{
+public:
+    SQLDB();
+    ~SQLDB();
+    bool isOpened();
+    int open(const std::string& filename);
+    SQLStatement prepare(const std::string& SQLCommand);
+    int step(const SQLStatement& Statement);
+    int exec(const std::string& SQLCommand,SQLCallback callback,void* param);
+private:
+    sqlite3* _db;
+};
+
+