pbuf

Reads/Writes to anything that implements Read/Write to/from protobuf...

Examples assume Msg is your protobuf and msg.rs is where it lives, see rust-protobuf on how to generate .rs from .proto files.

Add to Cargo.toml

pbuf = "0.3.2"

Read example

extern crate pbuf;
extern crate protobuf;

use std::io::prelude::*;
use std::io::{BufReader, self};
use std::fs::File;

mod msg;
use msg::Msg;

use pbuf::read_pbuf;

let mut reader = Box::new(BufReader::new(io::stdin()));
// To read from file
// let mut reader = Box::new(BufReader::new(File::open  (&<file pointer>).unwrap()))

// Reads entire buffer and fill
let mut msgs: Vec<Msg> = read_pbuf(&mut reader);

Write example

extern crate pbuf;
extern crate protobuf;

use std::io::prelude::*;
use std::io::{BufWriter, self};
use std::fs::File;

mod msg;
use msg::Msg;

use pbuf::write_pbuf;

let mut writer = Box::new(BufWriter::new(io::stdout()));
// To write to file
// let mut writer = Box::new(BufWriter::new(File::create(&<file pointer>).unwrap()))

for msg in msgs.iter() {
    write_pbuf(msg, &mut writer);
  }