1 files changed, 0 insertions, 52 deletions
diff --git a/components/cplusplus/cpp11/gcc/mutex.cpp b/components/cplusplus/cpp11/gcc/mutex.cpp
deleted file mode 100644
index e11f6d8990..0000000000
--- a/components/cplusplus/cpp11/gcc/mutex.cpp
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * Copyright (c) 2006-2021, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2021-04-27     flybreak     the first version.
- */
-
-#include "mutex"
-
-namespace std
-{
-    // use a set of global and static objects
-    // a proxy function to pthread_once
-
-    function<void()> once_functor;
-
-    mutex& get_once_mutex()
-    {
-        static mutex once_mutex;
-        return once_mutex;
-    }
-
-    inline unique_lock<mutex>*& get_once_functor_lock_ptr()
-    {
-        static unique_lock<mutex>* once_functor_mutex_ptr = nullptr;
-        return once_functor_mutex_ptr;
-    }
-
-    void set_once_functor_lock_ptr(unique_lock<mutex>* m_ptr)
-    {
-        get_once_functor_lock_ptr() = m_ptr;
-    }
-
-    extern "C"
-    {
-        void once_proxy()
-        {
-            // need to first transfer the functor's ownership so as to call it
-            function<void()> once_call = std::move(once_functor);
-
-            // no need to hold the lock anymore
-            unique_lock<mutex>* lock_ptr = get_once_functor_lock_ptr();
-            get_once_functor_lock_ptr() = nullptr;
-            lock_ptr->unlock();
-
-            once_call();
-        }
-    }
-}