Initial commit (history reset)

src/binder.rs

@@ -0,0 +1,41 @@
+use std::{
+    io::{self, Write},
+    os::unix::net::UnixStream,
+    path::Path,
+    process::Command,
+};
+
+use crate::read_line;
+
+pub trait BinderArg {
+    fn from_u8_bind(b: u8) -> Self;
+}
+
+pub struct DynLib {
+    stream: UnixStream,
+}
+
+impl DynLib {
+    pub fn load(dyn_lib: &str) -> io::Result<Self> {
+        if !Path::new(&format!("/tmp/{dyn_lib}")).exists() {
+            let path = format!("./{dyn_lib}.dyn");
+            Command::new(path).spawn().unwrap();
+            std::thread::sleep(std::time::Duration::from_millis(100));
+        }
+
+        Ok(Self {
+            stream: UnixStream::connect(format!("/tmp/{dyn_lib}"))?,
+        })
+    }
+
+    pub fn call<T: BinderArg>(&mut self, fn_id: u8) -> Option<T> {
+        self.stream.write_all(&[fn_id, 255]).ok()?;
+        self.stream.flush().ok()?;
+        let msg = read_line(&mut self.stream)?;
+        Some(T::from_u8_bind(msg[0]))
+    }
+}
+
+impl BinderArg for () {
+    fn from_u8_bind(_: u8) -> Self {}
+}