added get_signed_block_count_in_tenure

Author: rdeioris

stacks-signer/src/chainstate.rs

@@ -440,6 +440,7 @@ impl SortitionsView {
             }
 
             if tenure.first_block_mined.is_some() {
+                // TODO: roberto -> get the amount of signed blocks
                 let Some(local_block_info) =
                     signer_db.get_first_signed_block_in_tenure(&tenure.consensus_hash)?
                 else {

stacks-signer/src/signerdb.rs

@@ -21,7 +21,7 @@ use std::time::{Duration, SystemTime};
 use blockstack_lib::chainstate::nakamoto::NakamotoBlock;
 use blockstack_lib::chainstate::stacks::TransactionPayload;
 use blockstack_lib::util_lib::db::{
-    query_row, query_rows, sqlite_open, table_exists, tx_begin_immediate, u64_to_sql,
+    query_count, query_row, query_rows, sqlite_open, table_exists, tx_begin_immediate, u64_to_sql,
     Error as DBError,
 };
 #[cfg(any(test, feature = "testing"))]
@@ -792,6 +792,12 @@ impl SignerDb {
         try_deserialize(result)
     }
 
+    /// Return the count of signed blocks in a tenure (identified by its consensus hash)
+    pub fn get_signed_block_count_in_tenure(&self, tenure: &ConsensusHash) -> Result<i64, DBError> {
+        let query = "SELECT COUNT(*) FROM blocks WHERE consensus_hash = ? AND signed_over = 1";
+        query_count(&self.db, query, [tenure])
+    }
+
     /// Return the last accepted block in a tenure (identified by its consensus hash).
     pub fn get_last_accepted_block(
         &self,