From 7c190070b41c59752c7a81e017b470f82db18a64 Mon Sep 17 00:00:00 2001
From: Aaron Gao <gzh@fb.com>
Date: Thu, 7 Jul 2016 16:34:41 -0700
Subject: [PATCH] delete unnessary pointer cast in beginInternalTransaction()
 function

Summary: use of dynamic_cast<TransactionImpl*> is unnecessary and also introduce difficulty for fbrocksdb support of TransactionDB

Test Plan: ./transaction_test

Reviewers: sdong, IslamAbdelRahman, andrewkr

Reviewed By: andrewkr

Subscribers: andrewkr, dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D60501
---
 utilities/transactions/transaction_db_impl.cc | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/utilities/transactions/transaction_db_impl.cc b/utilities/transactions/transaction_db_impl.cc
index ab7d83c849..8e65776de7 100644
--- a/utilities/transactions/transaction_db_impl.cc
+++ b/utilities/transactions/transaction_db_impl.cc
@@ -225,12 +225,8 @@ Transaction* TransactionDBImpl::BeginInternalTransaction(
   TransactionOptions txn_options;
   Transaction* txn = BeginTransaction(options, txn_options, nullptr);
 
-  assert(dynamic_cast<TransactionImpl*>(txn) != nullptr);
-  auto txn_impl = reinterpret_cast<TransactionImpl*>(txn);
-
   // Use default timeout for non-transactional writes
-  txn_impl->SetLockTimeout(txn_db_options_.default_lock_timeout);
-
+  txn->SetLockTimeout(txn_db_options_.default_lock_timeout);
   return txn;
 }