Crates.io | systemd_socket |
lib.rs | systemd_socket |
version | 0.1.1 |
source | src |
created_at | 2020-12-03 15:47:06.397796 |
updated_at | 2024-07-13 13:15:18.483337 |
description | A convenience crate for optionally supporting systemd socket activation. |
homepage | https://github.com/Kixunil/systemd_socket |
repository | https://github.com/Kixunil/systemd_socket |
max_upload_size | |
id | 319310 |
size | 37,984 |
A convenience crate for optionally supporting systemd socket activation.
The goal of this crate is to make socket activation with systemd in your project trivial.
It provides a replacement for std::net::SocketAddr
that allows parsing the bind address from string just like the one from std
but on top of that also allows systemd://socket_name
format that tells it to use systemd activation with given socket name.
Then it provides a method to bind the address which will return the socket from systemd if available.
The provided type supports conversions from various types of strings and also serde
and parse_arg
via feature flag.
Thanks to this the change to your code should be minimal - parsing will continue to work, it'll just allow a new format.
You only need to change the code to use SocketAddr::bind()
instead of TcpListener::bind()
for binding.
You also don't need to worry about conditional compilation to ensure OS compatibility. This crate handles that for you by disabling systemd on non-linux systems.
Further, the crate also provides methods for binding tokio
0.2, 0.3, and async_std
sockets if the appropriate features are
activated.
use systemd_socket::SocketAddr;
use std::convert::TryFrom;
use std::io::Write;
let mut args = std::env::args_os();
let program_name = args.next().expect("unknown program name");
let socket_addr = args.next().expect("missing socket address");
let socket_addr = SocketAddr::try_from(socket_addr).expect("failed to parse socket address");
let socket = socket_addr.bind().expect("failed to bind socket");
loop {
let _ = socket
.accept()
.expect("failed to accept connection")
.0
.write_all(b"Hello world!")
.map_err(|err| eprintln!("Failed to send {}", err));
}
enable_systemd
- on by default, the existence of this feature can allow your users to turn
off systemd support if they don't need it. Note that it's already disabled on non-linux
systems, so you don't need to care about that.serde
- implements serde::Deserialize
for SocketAddr
parse_arg
- implements parse_arg::ParseArg
for SocketAddr
tokio
- adds bind_tokio
method to SocketAddr
tokio_0_2
- adds bind_tokio_0_2
method to SocketAddr
tokio_0_3
- adds bind_tokio_0_3
method to SocketAddr
async_std
- adds bind_async_std
method to SocketAddr
This crate must always compile with the latest Rust available in the latest Debian stable. That is currently Rust 1.41.1. (Debian 10 - Buster)
MITNFA