Use termios crate (WIP)

src/resource.rs

@@ -0,0 +1,18 @@
+use std::cell::RefCell;
+use std::rc::Weak;
+
+use syscall::error::Result;
+
+use pty::Pty;
+
+pub trait Resource {
+    fn boxed_clone(&self) -> Box<Resource>;
+    fn pty(&self) -> Weak<RefCell<Pty>>;
+    fn path(&self, buf: &mut [u8]) -> Result<usize>;
+    fn read(&self, buf: &mut [u8]) -> Result<usize>;
+    fn write(&self, buf: &[u8]) -> Result<usize>;
+    fn sync(&self) -> Result<usize>;
+    fn fcntl(&mut self, cmd: usize, arg: usize) -> Result<usize>;
+    fn fevent(&self) -> Result<()>;
+    fn fevent_count(&self) -> Option<usize>;
+}