diff --git a/posix/JackPosixMutex.h b/posix/JackPosixMutex.h
index 8fc6ea06..91d21132 100644
--- a/posix/JackPosixMutex.h
+++ b/posix/JackPosixMutex.h
@@ -33,6 +33,47 @@ namespace Jack
 \brief Mutex abstraction.
 */
 
+    
+class JackBasePosixMutex
+{
+    
+    protected:
+        
+        pthread_mutex_t fMutex;
+        
+    public:
+        
+        JackBasePosixMutex()
+        {
+            pthread_mutex_init(&fMutex, NULL);        
+        }
+        
+        virtual ~JackBasePosixMutex()
+        {
+            pthread_mutex_destroy(&fMutex);
+        }
+        
+        void Lock()
+        {
+            int res = pthread_mutex_lock(&fMutex);
+            if (res != 0)
+                jack_error("JackBasePosixMutex::Lock res = %d", res);
+        }
+        
+        bool Trylock()
+        {
+            return (pthread_mutex_trylock(&fMutex) == 0);
+        }
+        
+        void Unlock()
+        {
+            int res = pthread_mutex_unlock(&fMutex);
+            if (res != 0)
+                jack_error("JackBasePosixMutex::Unlock res = %d", res);
+        }
+    
+};
+    
 class JackPosixMutex
 {
 
diff --git a/posix/JackProcessSync.h b/posix/JackProcessSync.h
index 4cf82850..5f45a01e 100644
--- a/posix/JackProcessSync.h
+++ b/posix/JackProcessSync.h
@@ -32,7 +32,7 @@ namespace Jack
 \brief  A synchronization primitive built using a condition variable.
 */
 
-class JackProcessSync : public JackPosixMutex
+class JackProcessSync : public JackBasePosixMutex
 {
 
     private:
@@ -41,12 +41,12 @@ class JackProcessSync : public JackPosixMutex
 
     public:
 
-        JackProcessSync():JackPosixMutex()
+        JackProcessSync():JackBasePosixMutex()
         {
             pthread_cond_init(&fCond, NULL);
         }
 
-        ~JackProcessSync()
+        virtual ~JackProcessSync()
         {
             pthread_cond_destroy(&fCond);
         }