Engine directory for ticket #1

Engine/source/platform/platformIntrinsics.h

@@ -0,0 +1,57 @@
+//-----------------------------------------------------------------------------
+// Copyright (c) 2012 GarageGames, LLC
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//-----------------------------------------------------------------------------
+
+#ifndef _PLATFORMINTRINSICS_H_
+#define _PLATFORMINTRINSICS_H_
+
+#ifndef _TORQUE_TYPES_H_
+#  include "platform/types.h"
+#endif
+
+#if defined( TORQUE_COMPILER_VISUALC )
+#  include "platform/platformIntrinsics.visualc.h"
+#elif defined ( TORQUE_COMPILER_GCC )
+#  include "platform/platformIntrinsics.gcc.h"
+#else
+#  error No intrinsics implemented for compiler.
+#endif
+
+//TODO: 64bit safe
+
+template< typename T >
+inline bool dCompareAndSwap( T* volatile& refPtr, T* oldPtr, T* newPtr )
+{
+   return dCompareAndSwap( *reinterpret_cast< volatile U32* >( &refPtr ), ( U32 ) oldPtr, ( U32 ) newPtr );
+}
+
+// Test-And-Set
+
+inline bool dTestAndSet( volatile U32& ref )
+{
+   return dCompareAndSwap( ref, 0, 1 );
+}
+inline bool dTestAndSet( volatile U64& ref )
+{
+   return dCompareAndSwap( ref, 0, 1 );
+}
+
+#endif // _PLATFORMINTRINSICS_H_