1 files changed, 4 insertions, 4 deletions
diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp
index 46dec4ca6e..3aa01914a6 100644
--- a/src/rpc/blockchain.cpp
+++ b/src/rpc/blockchain.cpp
@@ -49,7 +49,7 @@ struct CUpdatedBlock
     int height;
 };
 
-static std::mutex cs_blockchange;
+static CWaitableCriticalSection cs_blockchange;
 static std::condition_variable cond_blockchange;
 static CUpdatedBlock latestblock;
 
@@ -224,7 +224,7 @@ static UniValue waitfornewblock(const JSONRPCRequest& request)
 
     CUpdatedBlock block;
     {
-        std::unique_lock<std::mutex> lock(cs_blockchange);
+        WAIT_LOCK(cs_blockchange, lock);
         block = latestblock;
         if(timeout)
             cond_blockchange.wait_for(lock, std::chrono::milliseconds(timeout), [&block]{return latestblock.height != block.height || latestblock.hash != block.hash || !IsRPCRunning(); });
@@ -266,7 +266,7 @@ static UniValue waitforblock(const JSONRPCRequest& request)
 
     CUpdatedBlock block;
     {
-        std::unique_lock<std::mutex> lock(cs_blockchange);
+        WAIT_LOCK(cs_blockchange, lock);
         if(timeout)
             cond_blockchange.wait_for(lock, std::chrono::milliseconds(timeout), [&hash]{return latestblock.hash == hash || !IsRPCRunning();});
         else
@@ -309,7 +309,7 @@ static UniValue waitforblockheight(const JSONRPCRequest& request)
 
     CUpdatedBlock block;
     {
-        std::unique_lock<std::mutex> lock(cs_blockchange);
+        WAIT_LOCK(cs_blockchange, lock);
         if(timeout)
             cond_blockchange.wait_for(lock, std::chrono::milliseconds(timeout), [&height]{return latestblock.height >= height || !IsRPCRunning();});
         else