From 50810bd4918fb87490b216d6bc4c3e3ff3571921 Mon Sep 17 00:00:00 2001
From: mingda <leimingda@pku.edu.cn>
Date: Thu, 30 Jul 2020 13:58:20 +0800
Subject: [PATCH] add prevent retrance to donate

---
 contracts/impl/Settlement.sol | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/contracts/impl/Settlement.sol b/contracts/impl/Settlement.sol
index d11eb29..bb133d1 100644
--- a/contracts/impl/Settlement.sol
+++ b/contracts/impl/Settlement.sol
@@ -65,12 +65,12 @@ contract Settlement is Storage {
         emit Donate(amount, false);
     }
 
-    function donateBaseToken(uint256 amount) external {
+    function donateBaseToken(uint256 amount) external preventReentrant {
         _baseTokenTransferIn(msg.sender, amount);
         _donateBaseToken(amount);
     }
 
-    function donateQuoteToken(uint256 amount) external {
+    function donateQuoteToken(uint256 amount) external preventReentrant {
         _quoteTokenTransferIn(msg.sender, amount);
         _donateQuoteToken(amount);
     }