TransactionScheduler: Id Generators (#33207)

core/src/banking_stage/transaction_scheduler/batch_id_generator.rs

@@ -0,0 +1,14 @@
+use crate::banking_stage::scheduler_messages::TransactionBatchId;
+
+#[derive(Default)]
+pub struct BatchIdGenerator {
+    next_id: u64,
+}
+
+impl BatchIdGenerator {
+    pub fn next(&mut self) -> TransactionBatchId {
+        let id = self.next_id;
+        self.next_id = self.next_id.wrapping_sub(1);
+        TransactionBatchId::new(id)
+    }
+}

core/src/banking_stage/transaction_scheduler/mod.rs

@@ -6,3 +6,9 @@ mod transaction_priority_id;
 mod transaction_state;
 #[allow(dead_code)]
 mod transaction_state_container;
+
+#[allow(dead_code)]
+mod transaction_id_generator;
+
+#[allow(dead_code)]
+mod batch_id_generator;

core/src/banking_stage/transaction_scheduler/transaction_id_generator.rs

@@ -0,0 +1,16 @@
+use crate::banking_stage::scheduler_messages::TransactionId;
+
+/// Simple sequential ID generator for `TransactionId`s.
+/// These IDs uniquely identify transactions during the scheduling process.
+#[derive(Default)]
+pub struct TransactionIdGenerator {
+    next_id: u64,
+}
+
+impl TransactionIdGenerator {
+    pub fn next(&mut self) -> TransactionId {
+        let id = self.next_id;
+        self.next_id = self.next_id.wrapping_add(1);
+        TransactionId::new(id)
+    }
+}