Add more slot update notifications (#15734)

* Add more slot update notifications

* fix merge

* Address feedback and add integration test

* switch to datapoint

* remove unused shred method

* fix clippy

* new thread for rpc completed slots

* remove extra constant

* fixes

* rely on channel closing

* fix check

client/src/rpc_response.rs

@@ -101,13 +101,63 @@ pub struct SlotInfo {
     pub root: Slot,
 }
 
+#[derive(Serialize, Deserialize, Clone, Copy, Debug, PartialEq)]
+#[serde(rename_all = "camelCase")]
+pub struct SlotTransactionStats {
+    pub num_transaction_entries: u64,
+    pub num_successful_transactions: u64,
+    pub num_failed_transactions: u64,
+    pub max_transactions_per_entry: u64,
+}
+
 #[derive(Serialize, Deserialize, Debug)]
 #[serde(rename_all = "camelCase", tag = "type")]
 pub enum SlotUpdate {
-    OptimisticConfirmation { slot: Slot, timestamp: u64 },
-    FirstShredReceived { slot: Slot, timestamp: u64 },
-    Frozen { slot: Slot, timestamp: u64 },
-    Root { slot: Slot, timestamp: u64 },
+    FirstShredReceived {
+        slot: Slot,
+        timestamp: u64,
+    },
+    Completed {
+        slot: Slot,
+        timestamp: u64,
+    },
+    CreatedBank {
+        slot: Slot,
+        parent: Slot,
+        timestamp: u64,
+    },
+    Frozen {
+        slot: Slot,
+        timestamp: u64,
+        stats: SlotTransactionStats,
+    },
+    Dead {
+        slot: Slot,
+        timestamp: u64,
+        err: String,
+    },
+    OptimisticConfirmation {
+        slot: Slot,
+        timestamp: u64,
+    },
+    Root {
+        slot: Slot,
+        timestamp: u64,
+    },
+}
+
+impl SlotUpdate {
+    pub fn slot(&self) -> Slot {
+        match self {
+            Self::FirstShredReceived { slot, .. } => *slot,
+            Self::Completed { slot, .. } => *slot,
+            Self::CreatedBank { slot, .. } => *slot,
+            Self::Frozen { slot, .. } => *slot,
+            Self::Dead { slot, .. } => *slot,
+            Self::OptimisticConfirmation { slot, .. } => *slot,
+            Self::Root { slot, .. } => *slot,
+        }
+    }
 }
 
 #[derive(Serialize, Deserialize, Clone, Debug)]