[database] Wrap BlockTime in another struct to allow adding more

fields in the future

src/database/keyvalue.rs

@@ -18,7 +18,7 @@ use bitcoin::hash_types::Txid;
 use bitcoin::{OutPoint, Script, Transaction};
 
 use crate::database::memory::MapKey;
-use crate::database::{BatchDatabase, BatchOperations, Database};
+use crate::database::{BatchDatabase, BatchOperations, Database, SyncTime};
 use crate::error::Error;
 use crate::types::*;
 
@@ -82,9 +82,9 @@ macro_rules! impl_batch_operations {
             Ok(())
         }
 
-        fn set_last_sync_time(&mut self, ct: BlockTime) -> Result<(), Error> {
-            let key = MapKey::LastSyncTime.as_map_key();
-            self.insert(key, serde_json::to_vec(&ct)?)$($after_insert)*;
+        fn set_sync_time(&mut self, data: SyncTime) -> Result<(), Error> {
+            let key = MapKey::SyncTime.as_map_key();
+            self.insert(key, serde_json::to_vec(&data)?)$($after_insert)*;
 
             Ok(())
         }
@@ -176,8 +176,8 @@ macro_rules! impl_batch_operations {
             }
         }
 
-        fn del_last_sync_time(&mut self) -> Result<Option<BlockTime>, Error> {
-            let key = MapKey::LastSyncTime.as_map_key();
+        fn del_sync_time(&mut self) -> Result<Option<SyncTime>, Error> {
+            let key = MapKey::SyncTime.as_map_key();
             let res = self.remove(key);
             let res = $process_delete!(res);
 
@@ -357,8 +357,8 @@ impl Database for Tree {
             .transpose()
     }
 
-    fn get_last_sync_time(&self) -> Result<Option<BlockTime>, Error> {
-        let key = MapKey::LastSyncTime.as_map_key();
+    fn get_sync_time(&self) -> Result<Option<SyncTime>, Error> {
+        let key = MapKey::SyncTime.as_map_key();
         Ok(self
             .get(key)?
             .map(|b| serde_json::from_slice(&b))
@@ -495,7 +495,7 @@ mod test {
     }
 
     #[test]
-    fn test_last_sync_time() {
-        crate::database::test::test_last_sync_time(get_tree());
+    fn test_sync_time() {
+        crate::database::test::test_sync_time(get_tree());
     }
 }