modified verification to loop until success or failure

src/accountant.rs

@@ -24,7 +24,6 @@ pub const MAX_ENTRY_IDS: usize = 1024 * 4;
 #[derive(Debug, PartialEq, Eq)]
 pub enum AccountingError {
     AccountNotFound,
-    BalanceUpdatedBeforeTransactionCompleted,
     InsufficientFunds,
     InvalidTransferSignature,
 }
@@ -142,6 +141,7 @@ impl Accountant {
             return Err(AccountingError::InvalidTransferSignature);
         }
 
+        loop {
             let bal = option.unwrap();
             let current = bal.load(Ordering::Relaxed) as i64;
 
@@ -157,11 +157,12 @@ impl Accountant {
                 Ordering::Relaxed,
             );
 
-        return match result {
-            Ok(_) => Ok(()),
-            Err(_) => Err(AccountingError::BalanceUpdatedBeforeTransactionCompleted),
+            match result {
+                Ok(_) => return Ok(()),
+                Err(_) => continue,
             };
         }
+    }
 
     pub fn process_verified_transaction_credits(&self, tr: &Transaction) {
         let mut plan = tr.data.plan.clone();