From 4e97a9d9eb91f87e0611c31f28e2e02a07cea8aa Mon Sep 17 00:00:00 2001
From: Matt Corallo <matt@bluematt.me>
Date: Thu, 28 Jun 2012 18:34:11 +0200
Subject: [PATCH] Lock vnThreadsRunning[THREAD_RPCHANDLER].

---
 src/bitcoinrpc.cpp | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/src/bitcoinrpc.cpp b/src/bitcoinrpc.cpp
index 82bab36dc..48c5a738b 100644
--- a/src/bitcoinrpc.cpp
+++ b/src/bitcoinrpc.cpp
@@ -2913,10 +2913,15 @@ void ThreadRPCServer2(void* parg)
     StopRequests();
 }
 
+static CCriticalSection cs_THREAD_RPCHANDLER;
+
 void ThreadRPCServer3(void* parg)
 {
     IMPLEMENT_RANDOMIZE_STACK(ThreadRPCServer3(parg));
-    vnThreadsRunning[THREAD_RPCHANDLER]++;
+    {
+        LOCK(cs_THREAD_RPCHANDLER);
+        vnThreadsRunning[THREAD_RPCHANDLER]++;
+    }
     AcceptedConnection *conn = (AcceptedConnection *) parg;
 
     bool fRun = true;
@@ -2925,7 +2930,10 @@ void ThreadRPCServer3(void* parg)
         {
             conn->close();
             delete conn;
-            --vnThreadsRunning[THREAD_RPCHANDLER];
+            {
+                LOCK(cs_THREAD_RPCHANDLER);
+                --vnThreadsRunning[THREAD_RPCHANDLER];
+            }
             return;
         }
         map<string, string> mapHeaders;
@@ -3005,7 +3013,10 @@ void ThreadRPCServer3(void* parg)
     }
 
     delete conn;
-    vnThreadsRunning[THREAD_RPCHANDLER]--;
+    {
+        LOCK(cs_THREAD_RPCHANDLER);
+        vnThreadsRunning[THREAD_RPCHANDLER]--;
+    }
 }
 
 json_spirit::Value CRPCTable::execute(const std::string &strMethod, const json_spirit::Array &params) const