test_Tof.cxx File Reference

#include <iostream>
#include <string>
#include <cstdlib>
#include <time.h>
#include <stdio.h>
#include <string.h>
#include <mysql/mysql.h>
#include <fstream>
#include "TFile.h"
#include "TTree.h"
#include "TBufferFile.h"

Go to the source code of this file.

Macros
#define	TEST_SQL

Functions
int	main (int argc, char **argv)

Macro Definition Documentation

TEST_SQL

#define TEST_SQL

Definition at line 12 of file test_Tof.cxx.

Function Documentation

main()

int main	(	int	argc,
		char **	argv
	)

Definition at line 19 of file test_Tof.cxx.

                                {
  char *opt_host_name = "bes3db1.ihep.ac.cn";   
 char *opt_user_name = "maqm";   
 unsigned int opt_port_num = 3306;   
 char *opt_socket_name = NULL;   
 char *opt_db_name = "offlinedb";
 unsigned int opt_flags = 0;   
 MYSQL *conn;   
 
 
 
 conn = mysql_init(NULL);   
     
 mysql_real_connect(conn, opt_host_name, opt_user_name, opt_password, 
           opt_db_name, opt_port_num, opt_socket_name, opt_flags);
 //printf("connect the database ok\n");
  if(conn!=0){
    std::cout<<"connect the database ok\n"<<std::endl;
  }else{
    std::cout<<"can't connect to the db:"<<std::endl;
    return -1;
  }
  
unsigned long *lengths;
 
 MYSQL_RES *res_set;
 MYSQL_ROW row;
 
 char stmt1[200];//="select context from mytesttable where id = %d,";
 sprintf(stmt1,"select  TofConPar from TofCalConst where serno = 2564");
 
 printf("%s\n",stmt1);
 
 int status = mysql_real_query(conn, stmt1, strlen(stmt1)); 
  if(status)
    {
          std::cout << "Query is:" <<stmt1<< " failed: " << mysql_error(conn) << std::endl;
          return -1;}
 res_set = mysql_store_result (conn);
 mysql_field_seek (res_set, 0); 
 
 //int lengths = 0;
 row = mysql_fetch_row (res_set);
 lengths = mysql_fetch_lengths(res_set);
 std::cout<<"lengths[0]: " << lengths[0] <<std::endl;
 
//====================================
////read the calibdata from the buffer
////====================================
 TTree* newHist= new TTree();
 TBufferFile rootBuffer2(TBufferFile::kRead,lengths[0], row[0], kFALSE);
  newHist->Streamer(rootBuffer2);
   newHist->Print();
  int  nentri = newHist -> GetEntries();
   std::cout<<"nentri is:"<<nentri<<std::endl;
int    runno;
double rungain;
/*newHist->SetBranchAddress("runno", &runno);
newHist->SetBranchAddress("rungain", &rungain);
 for ( int i = 0; i < 10; ++i ) {
   newHist->GetEntry(i);
   std::cout << "runno: " << runno << "  rungain: " << rungain << std::endl;
}*/
 
 mysql_free_result(res_set);
 
 mysql_close(conn);
 
 
 
  return 0;
}