Wire up the cleaned up driver implementation

crates/common/src/types/mod.rs

@@ -1,9 +1,11 @@
 mod identifiers;
 mod mode;
 mod private_key_allocator;
+mod round_robin_pool;
 mod version_or_requirement;
 
 pub use identifiers::*;
 pub use mode::*;
 pub use private_key_allocator::*;
+pub use round_robin_pool::*;
 pub use version_or_requirement::*;

crates/common/src/types/round_robin_pool.rs

@@ -0,0 +1,24 @@
+use std::sync::atomic::{AtomicUsize, Ordering};
+
+pub struct RoundRobinPool<T> {
+    next_index: AtomicUsize,
+    items: Vec<T>,
+}
+
+impl<T> RoundRobinPool<T> {
+    pub fn new(items: Vec<T>) -> Self {
+        Self {
+            next_index: Default::default(),
+            items,
+        }
+    }
+
+    pub fn round_robin(&self) -> &T {
+        let current = self.next_index.fetch_add(1, Ordering::SeqCst) % self.items.len();
+        self.items.get(current).unwrap()
+    }
+
+    pub fn iter(&self) -> impl Iterator<Item = &T> {
+        self.items.iter()
+    }
+}