1 files changed, 10 insertions, 14 deletions
diff --git a/JavaScriptCore/wtf/ThreadingWin.cpp b/JavaScriptCore/wtf/ThreadingWin.cpp
index 73c3f0c..a29fbbb 100644
--- a/JavaScriptCore/wtf/ThreadingWin.cpp
+++ b/JavaScriptCore/wtf/ThreadingWin.cpp
@@ -145,8 +145,6 @@ void unlockAtomicallyInitializedStaticMutex()
     atomicallyInitializedStaticMutex->unlock();
 }
 
-static ThreadIdentifier mainThreadIdentifier;
-
 static Mutex& threadMapMutex()
 {
     static Mutex mutex;
@@ -155,14 +153,12 @@ static Mutex& threadMapMutex()
 
 void initializeThreading()
 {
-    if (!atomicallyInitializedStaticMutex) {
-        atomicallyInitializedStaticMutex = new Mutex;
-        threadMapMutex();
-        initializeRandomNumberGenerator();
-        initializeMainThread();
-        mainThreadIdentifier = currentThread();
-        initializeCurrentThreadInternal("Main Thread");
-    }
+    if (atomicallyInitializedStaticMutex)
+        return;
+
+    atomicallyInitializedStaticMutex = new Mutex;
+    threadMapMutex();
+    initializeRandomNumberGenerator();
 }
 
 static HashMap<DWORD, HANDLE>& threadMap()
@@ -270,14 +266,14 @@ void detachThread(ThreadIdentifier threadID)
     clearThreadHandleForIdentifier(threadID);
 }
 
-ThreadIdentifier currentThread()
+void yield()
 {
-    return static_cast<ThreadIdentifier>(GetCurrentThreadId());
+    ::Sleep(1);
 }
 
-bool isMainThread()
+ThreadIdentifier currentThread()
 {
-    return currentThread() == mainThreadIdentifier;
+    return static_cast<ThreadIdentifier>(GetCurrentThreadId());
 }
 
 Mutex::Mutex()