proc-reader

A std::io::Read implementation for stdout/stderr of other process

Documentation

Usage

[dependencies]
proc-reader = "0.2.0"

Example

extern crate nix;
extern crate proc_reader;
use nix::unistd::Pid;
use proc_reader::ProcReader;
use std::process::Command;
use std::io::Read;
use std::time::Duration;
use std::thread;

fn main() {
    // Create a process for reading stdout
    let mut child = Command::new("sh").arg("-c").arg("sleep 1; echo aaa").spawn().unwrap();

    // Create ProcReader from pid
    let pid = Pid::from_raw(child.id() as i32);
    let mut reader = ProcReader::from_stdout(pid);

    // Wait the end of process
    thread::sleep(Duration::from_secs(2));

    // Read from ProcReader
    let mut line = String::new();
    let _ = reader.read_to_string(&mut line);
    assert_eq!( "aaa\n", line);
}