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feat(core): abstract everything in core
Feels right todo it this way. more feature guard needs to be added though.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,28 +1,121 @@ | ||
| use crate::constants::{DAEMON_BINARY, DAEMON_SOCKET_PATH}; | ||
| use anyhow::Result; | ||
| use std::io::Write; | ||
| use std::net::Shutdown; | ||
| use std::os::unix::net::UnixStream; | ||
| use std::process::Command; | ||
|
|
||
| /// Check if Unix socket is running | ||
| pub fn is_running() -> bool { | ||
| match UnixStream::connect(DAEMON_SOCKET_PATH) { | ||
| Ok(s) => s.shutdown(Shutdown::Both).ok().is_some(), | ||
| Err(_) => false, | ||
| use anyhow::{bail, Context, Result}; | ||
|
|
||
| pub struct Daemon { | ||
| state: std::sync::Arc<tokio::sync::Mutex<crate::state::State>>, | ||
| listener: tokio::net::UnixListener, | ||
| } | ||
|
|
||
| impl Daemon { | ||
| pub fn default() -> Self { | ||
| if std::fs::metadata(DAEMON_SOCKET_PATH).is_ok() { | ||
| std::fs::remove_file(DAEMON_SOCKET_PATH).ok(); | ||
| } | ||
|
|
||
| tracing::info!("Started"); | ||
|
|
||
| Self { | ||
| state: Default::default(), | ||
| listener: tokio::net::UnixListener::bind(DAEMON_SOCKET_PATH).unwrap(), | ||
| } | ||
| } | ||
|
|
||
| /// Run Main daemon server loop | ||
| pub async fn run(&mut self) -> ! { | ||
| use tokio::io::AsyncReadExt; | ||
|
|
||
| loop { | ||
| let state = self.state.clone(); | ||
| let (mut s, _) = self.listener.accept().await.unwrap(); | ||
| tokio::spawn(async move { | ||
| // let mut current_state = state.lock().await; | ||
| // current_state.update_clients(); | ||
|
|
||
| // trace!("Current State: {:?}", state.lock().await) | ||
| let mut string = String::default(); | ||
|
|
||
| if let Err(e) = s.read_to_string(&mut string).await { | ||
| tracing::error!("[Read Error]: {:?}", e); | ||
| return; | ||
| }; | ||
|
|
||
| if string.len() == 0 { | ||
| return; | ||
| } | ||
|
|
||
| let msg = crate::Command::parse(string.as_str().trim()); | ||
|
|
||
| if let Err(e) = msg { | ||
| tracing::error!("[Parse Error]: {:?}", e); | ||
| return; | ||
| }; | ||
|
|
||
| let msg = msg.unwrap(); | ||
| if let Err(e) = msg.handle(state.clone()).await { | ||
| tracing::error!("[Handling Error]: {:?}", e); | ||
| return; | ||
| }; | ||
|
|
||
| crate::watch::update(state, msg).await; | ||
| }); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| /// Spawn new instance of the server via running binaray is a child process | ||
| pub fn spawn() -> Result<()> { | ||
| Command::new(DAEMON_BINARY).spawn()?; | ||
| Ok(()) | ||
| impl Daemon { | ||
| /// Spawn new instance of the server via running binaray is a child process | ||
| pub fn spawn() -> Result<()> { | ||
| std::process::Command::new(DAEMON_BINARY) | ||
| .spawn() | ||
| .context("Unable to start background instance using daemon binaray") | ||
| .map(|_| ()) | ||
| } | ||
|
|
||
| /// Pass args to running daemon | ||
| pub fn execute(args: &[&str]) -> Result<()> { | ||
| use std::io::Write; | ||
| match std::os::unix::net::UnixStream::connect(DAEMON_SOCKET_PATH) { | ||
| Ok(mut stream) => { | ||
| stream.write_all(args.join(" ").as_str().as_ref())?; | ||
| stream.flush().context("Fail to flush stream!") | ||
| } | ||
| Err(e) => bail!("Fail to execute {:#?}: {e}", args), | ||
| } | ||
| } | ||
| } | ||
|
|
||
| /// Execute argument in the runtime | ||
| pub fn execute(args: &[&str]) -> Result<()> { | ||
| let mut stream = UnixStream::connect(DAEMON_SOCKET_PATH)?; | ||
| stream.write_all(args.join(" ").as_str().as_ref())?; | ||
| stream.flush()?; | ||
| Ok(()) | ||
| #[cfg(feature = "lua")] | ||
| use crate::mlua::LuaExtension; | ||
|
|
||
| #[cfg(feature = "lua")] | ||
| impl Daemon { | ||
| /// Representation of daemon table in lua | ||
| pub fn lua(lua: &mlua::Lua) -> mlua::Result<mlua::Table> { | ||
| let table = lua.create_table()?; | ||
| table.set("is_running", lua.create_function(Self::is_running)?)?; | ||
| table.set("ensure", lua.create_function(Self::ensure)?)?; | ||
| table.set("register", lua.create_function(crate::Register::lua)?)?; | ||
| table.set("drop", lua.create_function(crate::Drop::lua)?)?; | ||
| Ok(table) | ||
| } | ||
|
|
||
| /// Check if Daemon is running | ||
| pub fn is_running(_: &mlua::Lua, _: ()) -> mlua::Result<bool> { | ||
| match std::os::unix::net::UnixStream::connect(DAEMON_SOCKET_PATH) { | ||
| Ok(stream) => Ok(stream.shutdown(std::net::Shutdown::Both).ok().is_some()), | ||
| Err(_) => Ok(false), | ||
| } | ||
| } | ||
|
|
||
| /// Ensure that daemon is currently running in background | ||
| pub fn ensure(lua: &mlua::Lua, _: ()) -> mlua::Result<bool> { | ||
| if Self::is_running(lua, ()).unwrap() { | ||
| Ok(false) | ||
| } else if Self::spawn().is_ok() { | ||
| lua.info("Spawned Background Server")?; | ||
| Ok(true) | ||
| } else { | ||
| panic!("Unable to spawn background server"); | ||
| } | ||
| } | ||
| } |
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