Mysql C running select every second give Commands out of sync; you can't run this command now? [closed]

Question

We are running a C program where for every one second there is a function callback. Below is the snippet of the code listed. It is ran over every second without missing so we notice sometimes when is busy doing the insert part and the next select is up and running and cause this error. How to overcome this problem we have tried to copy the main localRes1 into another localRes2 and then try to free it but also got into errors.

char timeBuf[10],secondBuf1[100],queryBuf1[500],queryBuf2[500];
char buff[20] = {0};
struct timeval tv;
gettimeofday (&tv, NULL);
tv.tv_sec -= 5;
strftime(buff, 20, "%Y-%m-%d %H:%M:%S", localtime(&tv.tv_sec));
printf("\nTime is %s", buff);

sprintf(secondBuf1,"INSERT INTO  secondsLog2 (secondLogID , timeStampID ) VALUES (NULL,'%s')",buff);
//printf("Query 1 before executing %s\n",queryBuf1);
if (mysql_query(localConn, secondBuf1)) 
{
    printf("Error in insert of seconds log %s\n",mysql_error(localConn));
    exit(1);
}

sprintf(queryBuf1,"SELECT ipDest, portDest, SUM(packetLen), COUNT(ipDest) FROM source1 WHERE timeStamp = '%s' GROUP BY portDest",buff);
printf("\nQuery buf %s",queryBuf1);
if(mysql_query(remoteConn, queryBuf1))
{
    printf("Error in first query of select %s\n",mysql_error(remoteConn));
    exit(1);
}
localRes1 = mysql_use_result(remoteConn);
while((localRow1 = mysql_fetch_row(localRes1)) !=NULL)
            {
              sprintf(queryBuf1,"INSERT INTO  export1 (iBTID ,timeStampID ,ipDest ,portDest,totalBits, packetCount) VALUES (NULL,'%s','%s','%s',%s,%s)",buff, localRow1[0],localRow1[1],localRow1[2],localRow1[3],localRow1[4]);
              printf("Query 1 before executing %s\n",queryBuf1);
              if (mysql_query(localConn, queryBuf1)) 
              {
                printf("Error in first query of insert %s\n",mysql_error(localConn));
                 exit(1);
              }

            }
                        mysql_free_result(localRes1);