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37 lines
933 B
Rust
37 lines
933 B
Rust
extern crate nix;
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use nix::unistd::{fork,ForkResult};
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use std::{thread,time};
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use std::process;
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use std::io::prelude::*;
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use std::net::TcpListener;
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fn serve(listener: TcpListener) -> ! {
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for stream in listener.incoming() {
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let mut buffer = [0; 2048];
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let mut tcp = stream.unwrap();
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tcp.read(&mut buffer).expect("tcp read failed");
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let response = format!("respond from #{}\n", process::id());
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tcp.write(response.as_bytes()).expect("tcp write failed");
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}
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panic!("unreachable");
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}
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fn main() {
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let listener = TcpListener::bind("127.0.0.1:8888").unwrap();
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let mut children = Vec::new();
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for _ in 0..3 {
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match fork().expect("fork failed") {
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ForkResult::Parent{ child: pid } => { children.push(pid); }
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ForkResult::Child => {
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serve(listener)
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}
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}
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}
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let t = time::Duration::from_millis(1000);
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loop {
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thread::sleep(t);
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}
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}
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