mongodb 2.4.0-beta.1

The official MongoDB driver for Rust
Documentation 
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use std::io::Read;

use crate::error::Result;

pub(crate) trait SyncLittleEndianRead: Read {
    /// Read an `i32` in little-endian order.
    fn read_i32_sync(&mut self) -> Result<i32> {
        let mut buf: [u8; 4] = [0; 4];
        self.read_exact(&mut buf)?;
        Ok(i32::from_le_bytes(buf))
    }

    /// Read a `u32` in little-endian order.
    fn read_u32_sync(&mut self) -> Result<u32> {
        let mut buf: [u8; 4] = [0; 4];
        self.read_exact(&mut buf)?;
        Ok(u32::from_le_bytes(buf))
    }

    fn read_u8_sync(&mut self) -> Result<u8> {
        let mut buf: [u8; 1] = [0; 1];
        self.read_exact(&mut buf)?;
        Ok(buf[0])
    }
}

impl<R: Read> SyncLittleEndianRead for R {}