New upstream version 8.1.0

thirdparty/source/boost_1_61_0/boost/thread/tss.hpp

@@ -0,0 +1,113 @@
+#ifndef BOOST_THREAD_TSS_HPP
+#define BOOST_THREAD_TSS_HPP
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+// (C) Copyright 2007-8 Anthony Williams
+
+#include <boost/thread/detail/config.hpp>
+#include <boost/shared_ptr.hpp>
+#include <boost/thread/detail/thread_heap_alloc.hpp>
+
+#include <boost/config/abi_prefix.hpp>
+
+namespace boost
+{
+    namespace detail
+    {
+        struct tss_cleanup_function
+        {
+            virtual ~tss_cleanup_function()
+            {}
+
+            virtual void operator()(void* data)=0;
+        };
+
+        BOOST_THREAD_DECL void set_tss_data(void const* key,boost::shared_ptr<tss_cleanup_function> func,void* tss_data,bool cleanup_existing);
+        BOOST_THREAD_DECL void* get_tss_data(void const* key);
+    }
+
+    template <typename T>
+    class thread_specific_ptr
+    {
+    private:
+        thread_specific_ptr(thread_specific_ptr&);
+        thread_specific_ptr& operator=(thread_specific_ptr&);
+
+        struct delete_data:
+            detail::tss_cleanup_function
+        {
+            void operator()(void* data)
+            {
+                delete static_cast<T*>(data);
+            }
+        };
+
+        struct run_custom_cleanup_function:
+            detail::tss_cleanup_function
+        {
+            void (*cleanup_function)(T*);
+
+            explicit run_custom_cleanup_function(void (*cleanup_function_)(T*)):
+                cleanup_function(cleanup_function_)
+            {}
+
+            void operator()(void* data)
+            {
+                cleanup_function(static_cast<T*>(data));
+            }
+        };
+
+
+        boost::shared_ptr<detail::tss_cleanup_function> cleanup;
+
+    public:
+        typedef T element_type;
+
+        thread_specific_ptr():
+            cleanup(detail::heap_new<delete_data>(),detail::do_heap_delete<delete_data>())
+        {}
+        explicit thread_specific_ptr(void (*func_)(T*))
+        {
+            if(func_)
+            {
+                cleanup.reset(detail::heap_new<run_custom_cleanup_function>(func_),detail::do_heap_delete<run_custom_cleanup_function>());
+            }
+        }
+        ~thread_specific_ptr()
+        {
+            detail::set_tss_data(this,boost::shared_ptr<detail::tss_cleanup_function>(),0,true);
+        }
+
+        T* get() const
+        {
+            return static_cast<T*>(detail::get_tss_data(this));
+        }
+        T* operator->() const
+        {
+            return get();
+        }
+        typename boost::detail::sp_dereference< T >::type operator*() const
+        {
+            return *get();
+        }
+        T* release()
+        {
+            T* const temp=get();
+            detail::set_tss_data(this,boost::shared_ptr<detail::tss_cleanup_function>(),0,false);
+            return temp;
+        }
+        void reset(T* new_value=0)
+        {
+            T* const current_value=get();
+            if(current_value!=new_value)
+            {
+                detail::set_tss_data(this,cleanup,new_value,true);
+            }
+        }
+    };
+}
+
+#include <boost/config/abi_suffix.hpp>
+
+#endif