Mercurial > crates > systemd-socket

annotate tests/comm.rs @ 6:a7893294e9b2

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Make the crate compilable on non-linux systems This makes the crate compile on other operating systems. Since systemd is only supported on Linux, it simply disables systemd features on other systems. The API is still the same, just parsing `systemd://` string will return an error.
author Martin Habovstiak <martin.habovstiak@gmail.com>
date Fri, 27 Nov 2020 16:15:57 +0100
parents ef8bf41097ac
children 372afb9a700f
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1 use std::process::Child;
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2 use std::ffi::OsStr;
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3 use std::io::{self, Read, Write};
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5 pub trait Test {
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6 const SOCKET_ADDR: &'static str;
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8 fn spawn_slave(program_name: &OsStr) -> io::Result<Child>;
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9 }
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11 const REQUEST: &[u8] = b"orange coin";
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12 const RESPONSE: &[u8] = b"good";
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14 fn main_master(slave: io::Result<Child>) {
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15 let mut slave = slave.expect("failed to run systemd-socket-activate");
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17 // give slave some time to bind the socket just to be sure
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18 std::thread::sleep(std::time::Duration::from_secs(1));
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20 let mut client_socket = std::net::TcpStream::connect("127.0.0.1:4242").expect("Failed to connect to 127.0.0.1:4242");
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21 client_socket.write_all(REQUEST).expect("failed to send data");
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22 let mut buf = [0u8; RESPONSE.len()];
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23 client_socket.read_exact(&mut buf).expect("failed to read response");
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24 assert_eq!(buf, RESPONSE);
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26 let status = slave.wait().expect("faild to wait for slave");
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27 if !status.success() {
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28 panic!("slave did not exit with succcess, status: {}", status);
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29 }
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30 }
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32 fn main_slave(addr: &str) {
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33 use systemd_socket::SocketAddr;
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35 let socket = addr
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36 .parse::<SocketAddr>()
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37 .expect("failed to parse socket")
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38 .bind()
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39 .expect("failed to bind");
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40
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41 let (mut client_socket, _) = socket.accept().expect("failed to accept");
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42 let mut buf = [0u8; REQUEST.len()];
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43 client_socket.read_exact(&mut buf).expect("failed to read response");
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44 assert_eq!(buf, REQUEST);
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45 client_socket.write_all(RESPONSE).expect("failed to send data");
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46 }
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48 pub fn main<T: Test>() {
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49 let mut args = std::env::args_os();
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50 let program_name = args.next().expect("missing program name");
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52 match std::env::var_os("SYSTEMD_SOCKET_INTEGRATION_TEST") {
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53 None => main_master(T::spawn_slave(&program_name)),
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54 Some(arg) if arg == "slave" => main_slave(T::SOCKET_ADDR),
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55 Some(arg) => panic!("Unknown argument '{:?}'", arg),
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56 }
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57 }