threading fixes

Author: mastercoms

public/tier0/threadtools.h

@@ -1127,11 +1127,7 @@ class PLATFORM_CLASS CThreadRWLock
 private:
 	void WaitForRead();
 
-#ifdef WIN32
-	CThreadFastMutex m_mutex;
-#else
-	CThreadMutex m_mutex;	
-#endif
+	CThreadMutex m_mutex;
 	CThreadEvent m_CanWrite;
 	CThreadEvent m_CanRead;
 

tier0/threadtools.cpp

@@ -630,8 +630,8 @@ bool CThreadEvent::Set()
 			if (condition)
 			{
 				condition->notify_one();
+				condition.reset();
 			}
-			condition.reset();
 		}
     }
 	if (m_bAutoReset)