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use anyhow::Context as _;
use tokio::io::{AsyncBufReadExt as _, AsyncWriteExt as _};
pub struct Sock(tokio::net::UnixStream);
impl Sock {
pub fn new(s: tokio::net::UnixStream) -> Self {
Self(s)
}
pub async fn send(
&mut self,
res: &rbw::protocol::Response,
) -> anyhow::Result<()> {
let Self(sock) = self;
sock.write_all(
serde_json::to_string(res)
.context("failed to serialize message")?
.as_bytes(),
)
.await
.context("failed to write message to socket")?;
sock.write_all(b"\n")
.await
.context("failed to write message to socket")?;
Ok(())
}
pub async fn recv(
&mut self,
) -> anyhow::Result<std::result::Result<rbw::protocol::Request, String>>
{
let Self(sock) = self;
let mut buf = tokio::io::BufStream::new(sock);
let mut line = String::new();
buf.read_line(&mut line)
.await
.context("failed to read message from socket")?;
Ok(serde_json::from_str(&line)
.map_err(|e| format!("failed to parse message '{line}': {e}")))
}
}
pub fn listen() -> anyhow::Result<tokio::net::UnixListener> {
let path = rbw::dirs::socket_file();
// if the socket already doesn't exist, that's fine
let _ = std::fs::remove_file(&path);
let sock = tokio::net::UnixListener::bind(&path)
.context("failed to listen on socket")?;
log::debug!("listening on socket {}", path.to_string_lossy());
Ok(sock)
}
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