Skeletal state machine, wip.

1 files changed, 45 insertions, 25 deletions

diff --git a/src/main.rs b/src/main.rs
index f7eba0b..bc1e6a8 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,28 +1,48 @@
-// #[derive(Debug)]
-// enum VRRPv2State {
-//     Initialize,
-//     Backup,
-//     Master,
-// }
-
-// struct StateMachine {
-//     state: VRRPv2State,
-// }
-
-// impl StateMachine {
-//     fn new() -> Self {
-//         StateMachine {
-//             state: VRRPv2State::Initialize,
-//         }
-//     }
-//     fn transit_to(&mut self, new_state: VRRPv2State) {
-//         std::println!("vvrpd: {:?} -> {:?}", self.state, new_state);
-//         self.state = new_state;
-//     }
-// }
+use socket2::{Domain, Protocol, Socket, Type};
+
+struct Init;
+struct Master;
+struct Backup;
+
+impl Init {
+    fn new() -> Init {
+        Init {}
+    }
+}
+
+trait VRRPv2StateMachine {
+    fn next(&self) -> impl VRRPv2StateMachine;
+}
+
+impl VRRPv2StateMachine for Init {
+    fn next(&self) -> impl VRRPv2StateMachine {
+        Master {}
+    }
+}
+
+impl VRRPv2StateMachine for Master {
+    fn next(&self) -> impl VRRPv2StateMachine {
+        Backup {}
+    }
+}
+
+impl VRRPv2StateMachine for Backup {
+    fn next(&self) -> impl VRRPv2StateMachine {
+        Init {}
+    }
+}
+
+fn run() {
+    let sm = Init::new();
+    loop {
+        let _ = sm.next();
+    }
+}
 
 fn main() {
-    // let mut sm = StateMachine::new();
-    // sm.transit_to(VRRPv2State::Master);
-    // sm.transit_to(VRRPv2State::Backup);
+    let res = Socket::new(Domain::IPV4, Type::RAW, Some(Protocol::from(112)));
+    let Ok(_sock) = res else {
+        eprintln!("Socket::new(): {}", res.err().unwrap());
+        std::process::exit(1);
+    };
 }