]> git.lyx.org Git - features.git/blobdiff - boost/boost/smart_ptr/detail/spinlock_sync.hpp
boost: add eol property
[features.git] / boost / boost / smart_ptr / detail / spinlock_sync.hpp
index f948306a3f24c4eac3dfc8257b2d8e34dde21cf4..a7145c5ac2782e7051a75db82e2f524334ce8443 100644 (file)
@@ -1,87 +1,87 @@
-#ifndef BOOST_SMART_PTR_DETAIL_SPINLOCK_SYNC_HPP_INCLUDED\r
-#define BOOST_SMART_PTR_DETAIL_SPINLOCK_SYNC_HPP_INCLUDED\r
-\r
-// MS compatible compilers support #pragma once\r
-\r
-#if defined(_MSC_VER) && (_MSC_VER >= 1020)\r
-# pragma once\r
-#endif\r
-\r
-//\r
-//  Copyright (c) 2008 Peter Dimov\r
-//\r
-//  Distributed under the Boost Software License, Version 1.0.\r
-//  See accompanying file LICENSE_1_0.txt or copy at\r
-//  http://www.boost.org/LICENSE_1_0.txt)\r
-//\r
-\r
-#include <boost/smart_ptr/detail/yield_k.hpp>\r
-\r
-#if defined( __ia64__ ) && defined( __INTEL_COMPILER )\r
-# include <ia64intrin.h>\r
-#endif\r
-\r
-namespace boost\r
-{\r
-\r
-namespace detail\r
-{\r
-\r
-class spinlock\r
-{\r
-public:\r
-\r
-    int v_;\r
-\r
-public:\r
-\r
-    bool try_lock()\r
-    {\r
-        int r = __sync_lock_test_and_set( &v_, 1 );\r
-        return r == 0;\r
-    }\r
-\r
-    void lock()\r
-    {\r
-        for( unsigned k = 0; !try_lock(); ++k )\r
-        {\r
-            boost::detail::yield( k );\r
-        }\r
-    }\r
-\r
-    void unlock()\r
-    {\r
-        __sync_lock_release( &v_ );\r
-    }\r
-\r
-public:\r
-\r
-    class scoped_lock\r
-    {\r
-    private:\r
-\r
-        spinlock & sp_;\r
-\r
-        scoped_lock( scoped_lock const & );\r
-        scoped_lock & operator=( scoped_lock const & );\r
-\r
-    public:\r
-\r
-        explicit scoped_lock( spinlock & sp ): sp_( sp )\r
-        {\r
-            sp.lock();\r
-        }\r
-\r
-        ~scoped_lock()\r
-        {\r
-            sp_.unlock();\r
-        }\r
-    };\r
-};\r
-\r
-} // namespace detail\r
-} // namespace boost\r
-\r
-#define BOOST_DETAIL_SPINLOCK_INIT {0}\r
-\r
-#endif // #ifndef BOOST_SMART_PTR_DETAIL_SPINLOCK_SYNC_HPP_INCLUDED\r
+#ifndef BOOST_SMART_PTR_DETAIL_SPINLOCK_SYNC_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_SPINLOCK_SYNC_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+//  Copyright (c) 2008 Peter Dimov
+//
+//  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)
+//
+
+#include <boost/smart_ptr/detail/yield_k.hpp>
+
+#if defined( __ia64__ ) && defined( __INTEL_COMPILER )
+# include <ia64intrin.h>
+#endif
+
+namespace boost
+{
+
+namespace detail
+{
+
+class spinlock
+{
+public:
+
+    int v_;
+
+public:
+
+    bool try_lock()
+    {
+        int r = __sync_lock_test_and_set( &v_, 1 );
+        return r == 0;
+    }
+
+    void lock()
+    {
+        for( unsigned k = 0; !try_lock(); ++k )
+        {
+            boost::detail::yield( k );
+        }
+    }
+
+    void unlock()
+    {
+        __sync_lock_release( &v_ );
+    }
+
+public:
+
+    class scoped_lock
+    {
+    private:
+
+        spinlock & sp_;
+
+        scoped_lock( scoped_lock const & );
+        scoped_lock & operator=( scoped_lock const & );
+
+    public:
+
+        explicit scoped_lock( spinlock & sp ): sp_( sp )
+        {
+            sp.lock();
+        }
+
+        ~scoped_lock()
+        {
+            sp_.unlock();
+        }
+    };
+};
+
+} // namespace detail
+} // namespace boost
+
+#define BOOST_DETAIL_SPINLOCK_INIT {0}
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_SPINLOCK_SYNC_HPP_INCLUDED